Manuel d'utilisation / d'entretien du produit 980 du fabricant Sigma
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Cat. No. 97000-18 Model 980 Flo w Meter Operating and Maintenance Manual December 2002, Ed. 4.
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Cat. No. 97000-18 Model 980 Flo w Meter Operating and Maintenance Manual © American Sigma, 2002. All rights reser ved. Printed in the U.S.A. eac/dp 12/02 4ed.
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Pag e 3 970EST OC .fm T able of Contents Ta b l e o f C o n t e n t s Safety Precau tions ................. ................. ................ ............. ................ ................ ............... . ............. ................ ........ 8 Specifications .
Pag e 4 T able of Conten ts 970EST OC.fm T able of Contents OPERA TIO N .................. ................ ............. ................ ................ ............. ................ ................. ............ ............. ... 57 Section 3 Basic Pr ogramming Setup .
T able of Contents Pag e 5 970EST OC.fm T able of Contents 4.10.4.2 Se nsor Height ................. ............. ................ ................ ............. ................ .............. ............... ... 8 5 4.10.4.3 Se tting the In visible Range .
Pag e 6 T able of Conten ts 970EST OC.fm T able of Contents Types of Prima ry Devices .... ............. ................ ................ ................ ............. ................ ......... .... ............. ....... 109 Appendix B Troubleshootin g Measuremen t Errors .
T able of Contents Pag e 7 970EST OC.fm T able of Contents 980 SCADA-Mo dbus “No-Re sponse” Troub leshooting Flo w Chart (3 o f 5) .. ............. ................ ................ .... 14 5 980 SCADA-Mo dbus “No-Re sponse” Troub leshooting Flo w Chart (4 o f 5) .
Pag e 8 Safety Precautions Safe ty .fm Safety Precautions Please read this entire man ual before u npacking, setting up , or operating this instrument. P ay particular attention to all danger and cau tion statements . F ailure to do so could result in serious injury to the operat or or damag e to the equ ipment.
Safety Precautions Pag e 9 Safety .fm Safety Precautions Confined Space Entry Important Note: The f ollowing inf or mation is provided to guide users of 980 Flow Meters on the dangers and risks associat ed with entr y into confined spaces.
Pag e 1 0 Safety Precautions Safe ty .fm Safety Precautions Definition of Confined Space A Confined Space is an y location or enclosure that presents or has the immediate p otential to present on e or more of the following conditions: • An atmosphere with less tha n 19.
Safety Precautions Pag e 1 1 Safety .fm Safety Precautions DA N G E R Although some Sigma produ cts are designed and cer tified for installa tion in hazard ous locations as defined b y the National Electrical Code, many Sigma pr oducts are not suitab le for use in hazar dous locations.
Pag e 1 2 Specificat ions Specs.fm Specifications 980 Flow Meter Specifications are subject to change without notice . General Dimensio ns 14.62" H x 11.
Pag e 1 3 Specifications Specifications Integral pH Meter Contr ol/Logg ing Field selectable to log pH independent of flow o r in conjunction with flow; also controls sample collection in response to value of low/high stipends pH Sensor T emperature compensated; impact resistant ABS plasti c body Combination electrode with porous T eflon junction.
Pag e 1 4 Specificat ions Specifications Ultrasonic T ransducer Operating Frequenc y 75 kHz Beam Angle ±12° (-10 dB) Accuracy* ±0.03 ft ov er 2-ft change in head, @ 20 °C, still air , ideal target, 50 ft cable Range 11.5 in. (minimum) to 10.7 ft (maximum), with ideal target @ 20° C, in still air with 50-ft cable .
Pag e 1 5 Specifications Specifications V elocity T ransducer Method Doppler Prin ciple Accuracy* ±2% of reading; Zero Stability: ±1.52 cms (±0.05 fps) Range -1.52 to 6.1 m (-5 to +20 fps) Resolution 0.3 cms (0.01 fps) Response Time 4.8 seconds Profile Time 4.
Pag e 1 6 Specificat ions Specifications Submerged Area V elocity Probe Method Doppler Prin ciple / Pressure T ransducer Material P olyurethane bod y , 316 series stainless steel diaphragm Cable Urethane sensor cab le with air vent, shielded Cable L ength 7.
Pag e 1 7 Introducti on Section 1 Intr oduction 1.1 Instrument Description The 980 Flo w Meter is an ultrasonic le vel de tection meter with rugged, NEMA 4X, IP66 construction. The 980 Flo w Meter case has sev eral unique f eatures, all designed to simplify in stallation, oper ation, and maintenance .
Pag e 1 8 Front P ane l Features and Co ntrols Section 1 The 980 Flo w Meter is av ailable wit h one of the depth/ velocit y measurement technologies: 1.2 Fr ont P an el Features and Controls The 980 Flo w Meter front panel f eatures the k eypad and the liquid crystal displa y (LCD).
Section 1 Pag e 1 9 Ke ypad Description 1.3 Ke ypad Description The 980 Flo w Meter k eypad has th ree components: n umer ic ke ypad, soft ke ys, and function k eys. (See Figure 2 ). Numeric Keypad The numeric k eypad co nsists of the digits 0 thr ough 9, a +/- k ey , and a decimal ke y .
Pag e 2 0 Principle Operation Section 1 The low er left corner of the Status Bar indicates whether a prog ram is Running, Halted, or Ready T o Star t. If it is not need ed during a progr amming step , it disappears. The low er right cor ner displa ys system alar m conditions, such as lo w memory battery .
Section 1 Pag e 2 1 Principle Operation Using our InSight ® Gold data analysis software , users can download, remotely prog ram, view real-time current status of logged par ameters , and conduct other dat a manipulation via RS232 connect ion or the optional m odem.
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Pag e 2 3 INST ALLA TION DA N G E R Some of the fo llowing manua l sections contain inf ormation in the form of warnings, ca utions and notes that require special attention. Read and follo w these instructions carefull y to av oid personal injury and damage to the instrument .
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Pag e 2 5 Installation Section 2 Installation D ANGER This instrument should b e installed by qualified technical personnel to ensu re adhe rence to all applicable electrical codes.
Pag e 2 6 Unpacking the Instrument Section 2 Figure 4 Sealing-type Strain Reliefs, Cond uit Fittings, and Sealing Plugs Figure 5 Mounting Dimensions (1 of 3) 1. Sealing-type Strain Relief (Cat. No. 8773 0.20-0.35 ″ O .D . ca ble , Cat. No. 8786 0.23-0.
Section 2 Pag e 2 7 Mounting Opti ons Figure 6 Mounting Dimensions (2 of 3) 2.3 Mounting Options The 980 Flo w Meter is designed f or wall or rail/pole mou nting.
Pag e 2 8 Mounting Options Section 2 Figure 7 Mounting Dimensions (3 of 3) 2.3.1 Wall Mounting Mount the 980 Flo w Meter using the W all Mounting Bloc ks that come installed on the unit, se e Figure 7 . These br ack ets provide secure mount ing f or the instrument.
Section 2 Pag e 2 9 Mounting Opti ons Figure 8 W all Mounting 2.3.2 Rail/Pole Mounting Mount the 980 Flo w Meter using the rail/pole mounting kit (Cat. No . 97091-00). 1. Deter mine if t he brack e ts need to be placed h orizontally o r v er t ically , depending on the dire ction of the r ail/pole.
Pag e 3 0 Mounting Options Section 2 Figure 9 Rail / P ole Mounting 1. For mounting on a vertical pipe or rail. 2. F or mounting on a horizont al pipe or r ail.
Section 2 Pag e 3 1 Wiring Safety Information 2.4 Wiring Saf ety Inf ormation When making any wiring co nnections to th e 980 Flow Meter , th e f ollowing warnings and notes must be adher ed to , as well as, an y war nings and notes f ound throughout the individu al installation se ctions.
Pag e 3 2 Wiring the Controller Section 2 Figure 10 Enclosure Wiring Access 2.5.1 Connecting ac P ower to the 980 Flow Meter D ANGER When high-v oltage power is applied to the flow meter , pro visions must be made f or disconnect ing external power to the flow meter during servicing.
Section 2 Pag e 3 3 Wiring th e Contr oller F or process or industrial applications , the national electrical codes of most countries require that ac ser vice f eeds be hard-wired and contain ed in conduit systems. Th e 980 Flow Me ter has been designed to conf orm to this requirement.
Pag e 3 4 Wiring Op ti onal Devices Section 2 Figure 11 Proper Wire Connection Figure 12 Connecting P ower to the Instrument 2.6 Wiring Optional De vices The flow meter can connect to a wide v ar iety of optio nal peripheral de vices: 1. Ground Stud 3.
Section 2 Pag e 3 5 Wiring the 4–20 mA Output The 980 Flo w Meter is av ailable wit h one of the f ollowing depth/v elocity measurement t echnologies: After wiring the inst rument and optional de vi.
Pag e 3 6 Wiring the Analog Input Section 2 Figure 13 Locating TB10 for 4–20 mA Output Connections 2.8 Wiring the Analog Input Note: Use NEMA-approv ed cond uit hubs (Cat. No . 16483) to ensure that water and dust do not enter . the enclosure. 1. Disconnect all po wer to the 980 Flow M eter .
Section 2 Pag e 3 7 Wiring the Analog Input Note: Input impedance for v oltage inputs is equal to 1 meg ohm. 6. When wiring the cab le sheild, connect to protect ive ea r th (ground) at the 980 Flo w Meter . Do not connect the cab le shield at the remot e end of the cabl e.
Pag e 3 8 Wiring the Mechan ical T o talizer Section 2 Figure 14 Locating TB4 and TB9 f or Analog Input Connect ions 2.9 Wiring the Mec hanical T o talizer Note: Use NEMA-approv ed cond uit hubs (Cat. No . 16483) to ensure that water and dust do not enter the enclosure.
Section 2 Pag e 3 9 Wiring the Alarm Relays Figure 15 Locating TB7 for Mec hanical T otalizer Connection 2.10 Wiring the Alarm Rela ys D ANGER The relay connection area is designed for only high voltage (30-230 V ac) connections . A shoc k hazard can e xist if low v oltage (<30 V) connections are made in the relay connection area.
Pag e 4 0 Wiring the Alarm Rela ys Section 2 Note: Current to the relay contacts must be limited to 5 amps. A means to remov e power from the rela ys locally in case of an emergency or f or ser vicing the product must be prov ided b y the user .
Section 2 Pag e 4 1 Wiring the Rain Gauge Figure 16 Locating TB13 for Alarm Rela y Connection 2.11 Wiring the Rain Gauge An e xternal “tipping bu ck et” rain gauge (such as Cat. No . 9708400) can be connected to the r ain gauge connector of the 980 F low Mete r .
Pag e 4 2 Wiring the Sampler Section 2 Figure 17 Connecting to a Rain Gauge 2.12 Wiring the Sampler 1. Disconnect all po wer to the 980 Flow M eter . See Wiring Safety Inf or mation on page 31 . 2. Use a large flat-b lade screwdriv er to loosen the two scre ws secur ing the 980 Flo w Meter co ver .
Section 2 Pag e 4 3 Wiring the Sampler Figure 18 Locating TB10 for Sampler Connections T able 8 Sampler T erminal Block Connections (TB10) Pin Signal Description Wire Color Purpose Rati ng 1 shield — Noise Suppression N/A 2 common brown Pro vides the ground line used in conjun ction with the other signals on the connector .
Pag e 4 4 Wiring the RS232 Section 2 2.13 Wiring the RS232 Note: Do not conne ct the RS232 por t to more than one external device at the same time. Connecting an external device to both the side panel quick-connect fitting and the ter minal circuit board i nside the 980 Flow Meter can cause instrument f ailure and unreliable communications.
Section 2 Pag e 4 5 Wiring th e RS232 2. Disconnect the RS232 perm anent conduit connection. 3. Connect RS232 side connector Quic k-connect to the hub on the side panel of t he instrument. 4. Wire the RS232 side-connect or . Ref er to Ta b l e 1 0 and Figure 19 .
Pag e 4 6 Wiring the Mo dem Interface Section 2 2.14 Wiring the Modem Interface D ANGER Use care when making modem connections as high v oltage may be present on the phone wires! D ANGER Soy ez vigilant lor s que v ous connectez le modem, car les fils du téléphone peuvent présenter des tensions élevées.
Section 2 Pag e 4 7 Wiring the pH Sensor Note: Route wires thro ugh NEMA-approv ed conduit hubs (Cat. No . 164 83) to ensure that water and dust do not e nter the enclosure. 4. Attach a NEMA-ap prov ed conduit or compression fit ting to one of the ½ in.
Pag e 4 8 Wiring the pH Sensor Section 2 2. Use a large flat-b lade screwdriv er to loosen the two scre ws secur ing the 980 Flow Meter cov er . Op en the cov er . 3. Strip the insulation from the pH junction bo x leads ¼ inch. 4. Route the cable (Cat.
Section 2 Pag e 4 9 Wiring the Downlook Ultrason ic Sensor 2.15.2 pH Pr obe to Junction Bo x Note: pH sensor wire conne ctions are f ound inside the junctio n box co ver .
Pag e 5 0 Wiring the Downlook Ultrasonic Sensor Section 2 6. T o ensure protection again st electrical shock reinstall th e protectiv e cove r ov er the Ultrasonic + and - terminal connections .
Section 2 Pag e 5 1 Wiring the In-Pip e Ultrasonic Senso r 2.17 Wiring the In-Pipe Ultrasonic Sensor The in-pipe ult rasonic sensor is wired to the 980 Flow Meter the same w ay as the ultrasonic downlook.
Pag e 5 2 Wiring the V elocity-Only Sensor Section 2 Note: The v elocity-only probe and the submerged A V probe cannot be connected at the same time. Disconnect all bare le ad connections or submerged A V quick-connect connections to TB11 before connecting a v elocity-only bare lead connection.
Section 2 Pag e 5 3 Wiring the Submerged Are a V elocity Sensor 2.19 Wiring the Submerged Area V elocity Sensor 2.19.1 Bare Lead Sensor Cables Note: Bare lead connections and Quick-connections cannot be made at the same time. Bare lead sensor cables are used in those cases when the cable will be run through a conduit.
Pag e 5 4 Wiring the Submerged Area V elocity Sensor Section 2 Figure 26 Submerged Area V elocity Junction Bo x Connections T able 16 Submerged Area V elocity Sensor T erminal Board Connec tions (TB11.
Section 2 Pag e 5 5 Wiring the Submerged Are a V elocity Sensor Figure 27 Junction Bo x, Probe, Cable Connection, and Desiccant Canister 2.19.2 Submerged Area V elocity Sensor Cable Quic k-Connect The quic k-connect hub allo ws easy installation and remov al of the submerged area v elocity sensor .
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Pag e 5 7 OPERA TION D ANGER Handling ch emical sample s, standar ds, and reagents can be danger ous. Revie w the necessary Material Safety Data Sheets and become familiar wit h all safety procedures before handling any c hemicals. D ANGER La manipulation des échantillon s chimiques, étalons et réactifs peut être dangereuse .
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Pag e 5 9 Basic Programming Setup Section 3 Basic Pr ogramming Setup 3.1 Initial P ower -Up of Meter After po wer is applie d, the flo w meter perf or ms a complete dia gnostic self-test and displa ys the menu shown wh en the unit was last turned off .
Pag e 6 0 Basic Programming Section 3 Step 2 - Flow Units Note: Diff erent flow units can be selected in the Sampler P acing programming section (see section 4.6.1 on page 75 ). 2-A. F rom the M odify All Items scree n, highlight Flow Units using the up and down arr ow soft k eys .
Section 3 Pag e 6 1 Basic Pr ogramming Step 3 - Level Units 3-A. F rom the Modify All Items screen, high light Le v el Units, using the up and down ar row soft ke ys and press the SELECT soft ke y to continue. 3-B. Select the units of mea sure to use when displa ying lev el readings ( Ta b l e 1 8 ).
Pag e 6 2 Basic Programming Section 3 Head vs. Flow T wo independent user–entered look up tables of up to 100 points each (See Ta b l e 2 2 ) Manning Equation Rectangular chann el, U-shaped channel,.
Section 3 Pag e 6 3 Basic Pr ogramming Step 5 - Pr ogram Loc k Program Lock provides a protec tive passcode to keep unautho rized personnel from tamp ering with the ke yboard. When enable d and a user attempts to change the program, a scr een will ask them to enter a pass word.
Pag e 6 4 Basic Programming Section 3 Step 8 - T otal Flow Units 8-A. F rom the Modify All Item s screen, hig hlight T otal Flow Units u sing the up and down arrow soft ke ys. Press the SE LECT soft ke y to continue. 8-B. Set the T otal Flow Units using the CHANGE CHOICE soft ke y .
Section 3 Pag e 6 5 Starting and Stopping Pr ograms Example 1: V elocity Cutoff = 0.20 fps V elocity Default = 0 fps If the v elocity falls below 0.20 fps , t he meter will store a value of 0 fps until the velocity increases abo ve 0.20 fps . Example 2: V elocity Cutoff = 0.
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Pag e 6 7 External Device Setup Section 4 External De vice Setup After wiring the instrument and other de vices and perf or ming the basic progr amming setup progr am and, when necessary , calibrate the de vices. F or each sensor prog ram, calibr ate, and install the sensors in a pip e.
Pag e 6 8 4–20 mA Output Section 4 5. Select an In put Channel (e.g., channel 1, 2, 3, or , f low , et c.) to assign to that outpu t. Press the CHANGE CHOICE soft k ey to cycle t hrough the channel names . When the desired chann el is displa ye d, press the A CCEPT so ft ke y to pick that channe l.
Section 4 Pag e 6 9 4–20 mA Output 6. Measure the current on the selected output using the multimeter and enter the measured value usin g the numeric ke ypad. Press the A CCEPT soft ke y to proceed. 7. Press any k ey to set the o utput to 20.00 mA dc.
Pag e 7 0 Analog Inpu t Section 4 4.2 Analog Input 4.2.1 Programming the Analog Inputs Channels 1 through 7 ar e analog input channels that can accept a signal fr om an e xter nal device . This signal may r ange from -4.5 V dc (min.) to +4.5 V dc (max.
Section 4 Pag e 7 1 Mechanical T otalizer 4. Press the CHANGE CHOICE soft k ey to select “Logge d, ” then press the A CCEPT so ft ke y . 5. Enter a 1-minut e logging interval using the numeric k eypad, then press the AC C E P T s oft ke y . 6. Press the CHANGE CHOICE soft k ey to cycle through th e units of measure until ppm is displa yed.
Pag e 7 2 Mechanical T otalize r Section 4 3. Set the T otalizer Scaling factor using the CHANGE CHOICE s oft ke y . All three totaliz ers are scaled with one of sev en scaling f actors: X1, X10, X100, X1000, X10,000, X100,000 or X1,0 00,000. The selecte d scaling f a ctor alw ays ap plies to all totalizer s.
Section 4 Pag e 7 3 Alarm Relays 4.4 Alarm Rela ys 4.4.1 Programming the Alarm Rela ys Alarms can be programmed to activ ate based on cer tain condit ions (low batter y , low memor y , etc.). Refer to 980 Alarms Flow Char t on page 152 . When an alarm is tr ipped, an action is initi ated (repor t via modem, dial a pager , or set a rela y).
Pag e 7 4 Rain Gauge Section 4 4.4.1.2 Set P oint Alarms Set P oint Alarms activate when a user-d efinable high and/or lo w set point is reached. 1. Select an a ction to o ccur when the alarm is activ ated. 2. Enable one of the alar m conditions. 3. Set either a High trip point or a Lo w trip point.
Section 4 Pag e 7 5 Sampler 4.6 Sampler 4.6.1 Programming a Sampler Connection 1. F rom t he MAIN MENU, select SETUP>MODIFY SELECTED ITEMS . 2. Scroll down an d highlight SAMPLER P ACING using the u p and do wn arro w soft ke ys. Press the SELECT soft ke y to continue.
Pag e 7 6 Modem Interface Section 4 4.8 Modem Interface 4.8.1 Programming the Modem 1. F rom the Main Menu, s elect OPTIONS > AD V ANCED OPTIONS > COMMUNICA TIONS SETUP > MODEM PO WER. 2. T o enab le the modem powe r , press the CHANGE CHOICE k ey until “ENABLED” sho w s up in the center of t he displa y .
Section 4 Pag e 7 7 pH Sensor 4.9 pH Sensor pH sensor function deg rades ov er ti me , e ve n under ideal condition s, and theref ore require periodic replacement. The pre-amplifie r junction bo x is prov ided to allow f or f ast, easy replacement of the pH senso r .
Pag e 7 8 Downlook Ultrason ic Sensor Section 4 4. Select the p H for the first buff er s olution (4, 7, or 10 pH) u sing the CHANGE CHOICE soft key , then press th e A CCEPT soft ke y to cont inue.
Section 4 Pag e 7 9 Downlook Ultrasonic Sensor 4.10.1 Installing an Ultrasonic Sensor (Downlook) at a Primary Device Note: Do not susp end the sensor by the cable. Only use appropriate mounting hardware. Site selection can greatly enhance system performance.
Pag e 8 0 Downlook Ultrason ic Sensor Section 4 Figure 32 Ultrasonic Sensor Beam Ang le Figure 33 Choosing the Approp riate Sensor Heig ht Measure f or D Measure f or D 2 Measure f or D 1 3 This dra wing is not to scale. Zero Flow P oint 0.1 1 10 100 D1 0.
Section 4 Pag e 8 1 Downlook Ultrasonic Sensor 4.10.1.2 Mounting the Ultrasonic Sensor Note: T o prev ent mechani cal vibration ensure that the supplie d isolation washers are installed as shown in Figure 34 . Se v eral bra ck ets are av ailab le f or mounting the sensor to a fix ed location such as a wall or fl oor .
Pag e 8 2 Downlook Ultrason ic Sensor Section 4 Figure 35 Assembling the Mo unting Brac ket (Cat. No. 2904) 1. 14.75 inches (Cat. No . 3047 ) 4. Horizontal and ver tical sectio ns are fully adjustable*. * Loosen the bolt, slide the section to the desired dista nce and re-tighten the bolt.
Section 4 Pag e 8 3 Downlook Ultrasonic Sensor 4.10.2 Ultrasonic Senor (Do wnloo k) Installation T roub leshooting Con vection Currents Conv ection components between the se nsor and target will change the v elocity of sound.
Pag e 8 4 Downlook Ultrason ic Sensor Section 4 4.10.3 Programming the Downlook Ultrasonic Sensor The downlo ok ultrasonic sensor does not req uire specific progr amming, unless more than one sensor opt ion is connected to the 980 Flow Meter . When more tha n one sensor opti on is connected to th e 980 Flow Meter : 1.
Section 4 Pag e 8 5 Downlook Ultrasonic Sensor Note: Alwa ys re-check the Lev el Adjust when re-install ing the flow meter. 1. F rom the Main Menu, s elect OPTIONS>AD V ANCED OPTIONS>CALIBRA TION>UL TRASONIC SENSOR. 2. Select Calibr ate U-Sonic using the up a nd down arr ow soft k eys .
Pag e 8 6 Downlook Ultrason ic Sensor Section 4 4. Enter the amb ient air temper ature at the tr ansducer location . F or optimu m results, allow enough time (100 minutes) to ensure that the sensor is at equilibrium with the surrounding ambient temperature.
Section 4 Pag e 8 7 In-Pipe Ultrasonic Sens or 4.11 In-Pipe Ultrasonic Sensor 4.11.1 Mounting the In-Pipe Sensor • Mount the sensor o ver the center of the flo w stream where the su rf ace turb ulence is minimiz ed ( Figure 37 ). • Mount the sensor 2 m (82 in.
Pag e 8 8 In-Pipe Ultrasonic Sensor Section 4 Figure 38 Side View of In-Pipe 4.11.2 Beam Angle The narro w beam of sound th at emanates from the bottom of the in- pipe ultra sonic sensor spreads out at an angle o f ±12° (-10 dB) as it tr av els aw ay from the sensor .
Section 4 Pag e 8 9 In-Pipe Ultrasonic Sens or 2. Highlight Calibrat ion, using the up and do wn arrow soft ke ys. Press the SELECT soft key to continue. 3. Highlight Ultra-So nic Sensor , using the up and do wn arrow soft ke ys. Press the SELECT soft ke y to continue.
Pag e 9 0 V elocity-Only Sensor Section 4 4.11.4.3 Setting the In visible Range The 980 Flo w Meter is equipped with an in visible ran ge f eature to pre vent f alse echoes from tops of channel walls , ladder r ungs, shelv es, etc. A user- selected r ange is defined that is in visible to the flo w meter .
Section 4 Pag e 9 1 V elocity-Only Sensor Figure 39 V elocity-Only Sensor 4.12.1 Programming the V elocity-Only Sensor 1. Fr o m t h e MAIN MENU , select SETUP>MODIFY SELECTED ITEMS 2. Highlight V elocity Direction using the up and do wn arrow soft k eys.
Pag e 9 2 V elocity-Only Sensor Section 4 4.12.3 Installing the V eloci ty-Only Sensor in a Pipe 4.12.3.1 Important Guidelines for V elocity-Only Sensor Installation • Do not install more than one probe at a time in pipes less than 24 inches in diameter (61 cm).
Section 4 Pag e 9 3 V elocity-Only Sensor Figure 40 Attaching the Sensor Mountin g Band Figure 41 A voiding Silt when M ounting the Sensor 1. Receptacle for Spring Clip 2.
Pag e 9 4 V elocity-Only Sensor Section 4 4.12.3.4 Compensating for V elocity Direction When progr amming the velocity sensors y ou ma y select one of t hree V elocity Direction op tions and th e velocity cutoff/velocity default: 4.
Section 4 Pag e 9 5 Submerged Area V el ocity Sensors Figure 42 Placing the Sen sor into the F low 4.13 Submerged Area V elocity Sensors Submerged Area V elocity sensors can measure le v el and v elocity simultaneously . A submerge d pressure tr ansducer measures le vel.
Pag e 9 6 Submerged Area V elocity Sensors Section 4 Setting the W at er Level 1. T ake a ph ysical me asurement of the water lev el and enter the number using the Le vel Adjust fun ction on the instrument displa y .
Section 4 Pag e 9 7 Submerged Area V el ocity Sensors 2. Place the sensor flat on a tab le top or floo r with the sensor (the pla te with holes) f acing down onto the surf ace ( Figure 45 ). 3. Press any k ey . 4. Place the sensor f ace up in the buc ket or liquid.
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Pag e 9 9 MAINTENANCE DA N G E R Some of the fo llowing manua l sections contain inf ormation in the form of warnings, ca utions and notes that require special attention. Read and follo w these instructions carefull y to av oid personal injury and damage to the instrument .
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Pag e 1 0 1 Maintenance Section 5 Maintenance This chapter e xplains how to maintain , repair , and upgr ade the 980 Flo w Meter . It describes how to open the case , inspect and replac e fuses, and perf or m operating syste m software upgra des.
Pag e 1 0 2 Fuse Replacement Section 5 5.3 Fuse Replacement D ANGER Internal power switch does not remove power fr om the fuses. Remove po wer from all e x ternal power sources when installing a fuse. D ANGER L'interrupteur d'alimentati on interne ne met pas les fusibles hors tension.
Section 5 Pag e 1 0 3 Memory Batteri es Figure 46 Locating the Fuses (F1 and F2) 5.4 Memory Batteries RAM (random access memory) is a ve r y reliabl e data storage me dium f or microprocessor applications . Random Access Memor y requires po wer at all times to store it s data, how ev er .
Pag e 1 0 4 Cleaning and Maintain ing Submerged Area/V elocity Sensors Section 5 5.6 Cleaning and Maintaining Su bmer g ed Area/V elocity Sensors CA UTION: When handling materials, samples, and waste wear goggles and latex glo v es to av oid illne ss or infection.
Section 5 Pag e 1 0 5 Cleaning and Maintaining Subm erged A rea/V elocity Sensor s Figure 47 Removing th e Protecti ve Cover 5.6.2 Changing the Desiccant Y o ur sensor contains a tube that eq ualizes the air p ressure in the transd ucer and the ou tside air pressure .
Pag e 1 0 6 Cleaning and Maintain ing Submerged Area/V elocity Sensors Section 5 Note: Applying O-ring grease (ber yllium grease) to new or dry O- rings improves the ease of inser tion, sealing, and life span of the O-ring. 6. Hold the canister up to the light and inspect th e h ydropho bic filter for tearing or obstruction.
Section 5 Pag e 1 0 7 Cleaning and Maintaining Subm erged A rea/V elocity Sensor s 5.6.5 Hydrophobic Filter Replacement Pr ocedure 1. Using a deep-w ell hex so ck et (11 mm), unscrew t he he x-head tubing nipple from the top o f the canister and discard the old filte r .
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Pag e 1 0 9 W orking with Prim ary Device s Appendix A W orking with Primar y De vices W orking with Primary Devi ces and Sensor Operation Installing the sensor in any primary de vi ce requires familiari ty with the proper location f or head measurement in that particular primar y device .
Pag e 1 1 0 W orking with Primary Devices Appendix A Figure 50 Weir FLO W FLO W 4H Minimum Distance from Weir Plate W eir Plate 2H Minimum Crest Height Submerged Probe Submerged Probe Dra w down Head .
Appendix A Pag e 1 1 1 W orking with Prim ary Device s Figure 51 Par shall Flume A Length of Conv erging Section 2/3A Length to Stilling Well Stilling W ell (Optional) FLO W 4X Max H Minimum Distance .
Pag e 1 1 2 W orking with Primary Devices Appendix A Figure 52 Palmer -Bowlus Flume (with Integral App roac h) FLO W FLO W Submerged Probe (Pref erred Head Measurement P oint) Pref erred Head Measurement P oint "D" Conduit Diameter 2 Lower T ransition Throat W ater Surface Small jump should occur here.
Appendix A Pag e 1 1 3 W orking with Prim ary Device s Figure 53 Leopold-Lagco Flume Pref erred Head Measurement P oint W ater Surface Small jump should occur here.
Pag e 1 1 4 W orking with Primary Devices Appendix A Figure 54 H-Flume Figure 55 Round Pipes FLO W FLO W Pipe Stub Inlet Bulkhead Approach Section H W T 4 1 3 2 Head Measurement Section Ele vation Vie.
Pag e 1 1 5 T roubleshooting Measu rement Errors Appendix B T roub leshooting Measurement Error s T roub leshooting Measurement Erro r s Fr om Electr omagnetic Fields Measurement inaccur acy can be aff ected by nu merous f actors, one of these f actors is Radio F requency (RF).
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Pag e 1 1 7 Programming F eatures Appendix C Pr ogramming Features Revie w All Items T o vie w progr ammed entries without accident ly changing an y of the inf or mation, select the Revie w A ll Ite ms from the SETUP m enu. This inf or mation fills more than one screen, scroll thr ough the setup information one page at a time with th e arrow k eys.
Pag e 1 1 8 Programming Features Appendix C T abul ar or Graph Format 1. Highlight the desir ed displa y method using the up and down arro w soft ke ys then press the Select soft ke y .
Appendix C Pag e 1 1 9 Programming F eatures Graph Manipulation Graphic Displa y A veraging The 980 Flow Meter can displa y a graph that consists of a maximum of 180 individual do ts.
Pag e 1 2 0 Programming Features Appendix C The Options menu can set the: • Time and Date f or the real time cloc k in the 980 Flo w Meter . • Progr am the adv anced featu res of the flo w meter . • Select lev el sensor when mu ltiple sensors are installed.
Appendix C Pag e 1 2 1 Programming F eatures Adv anced Options include the f ollowing: Alarms Setting the Dead band Note: Rainf all and Flow Rate of Change alar ms are High Set P oint conditions; they take no deadband, and they are time dependent. After entering the trip point, enter a “Deadband” v alue.
Pag e 1 2 2 Programming Features Appendix C Figure 56 Deadband Concept Data Log F rom the Main Menu, select SETUP > AD V ANCED OPTIONS > DA T A LOG. The 980 Flo w Meter can record up to 115,63 0 readings from an y or all input channels an d store them in solid stat e, batter y-backed memor y for later viewing or retriev al.
Appendix C Pag e 1 2 3 Programming F eatures Data Logging Memory Allocation Options The 980 Flo w Meter uses a management scheme called “Dynamic Memory Allocation. ” All readings are logged in batter y-b ack e d Random Acce ss Memory (RAM). RAM memor y is allocated to each channel dyn amically during operation.
Pag e 1 2 4 Programming Features Appendix C 6. Select another ch annel to configure or pr ess the RETURN soft k ey to back up one step o r press the MAIN MENU function key to retur n to the Main Menu. Diagnostics F rom the Main Menu, sele ct OPTIONS > AD V ANCED OPTIONS > DIA GNOSTICS.
Appendix C Pag e 1 2 5 Programming F eatures LCD T est Displa y T est verifies all the pix els in the Liquid Cr ystal Displa y (LCD) are functional. The LCD is made up of 14,400 pix els that are turned on and off as needed to create the displa y of graphics and te xt.
Pag e 1 2 6 Programming Features Appendix C Fixed Alarms Fixed alarms ( T a ble 31 ) show the On/Off status associat ed with the alarm. F or instance, U-sonic Echo Loss On at some time/date wi ll appear . When the condition ends, U-sonic Echo Loss Off will appear .
Appendix C Pag e 1 2 7 Programming F eatures T able 32 shows all possible sampling trig gers and appropriate sett ings. T o enable Set P oint Sampling: 1.
Pag e 1 2 8 Programming Features Appendix C Storm W ater A special Storm Wat er monitoring program desig ned specifically to meet the NPDES stor m water requirements is built in to the 980 Flow Meter . R ainf all is monitored with an opt ional Rain Gauge.
Pag e 1 2 9 Programming W orksheet Appendix D Pr ogramming W orksheet Basic Programming Guidelines • Go through all items in the Se tup men u and configure each one to y our requirements . • Ne xt, re view the items in the Adv anced Options menu and configure an y items you need.
Pag e 1 3 0 Programming W orksheet Appendix D 6. Enter a SITE IDENTI FICA TION:_________ _____________ ___________ 7. Enter unit of measure f or T OT AL FLOW (acre-f eet, cubic f eet, gallons, liters, cubic meters):______ ____ Applies to veloc ity models onl y: 8.
Appendix D Pag e 1 3 1 Programming W orksheet 3. Calibrate input s (as needed): ________ __chk 4. Communications Se tup: (If mo dem is enabled) ACCEPT any baud rate displa yed. [Modem will in dependently estab lish act ual baud rate between 1200 and 1 4,400.
Pag e 1 3 2 Programming W orksheet Appendix D 8. Configure ST ORM W A TER if desired: Star t Condition:__________ (Rain , Le vel, Ra in & Le vel, Rain or Le ve l) Rain T rigger : _____________ ___.
Pag e 1 3 3 SCAD A -Modbus® System Guidelines Appendix E SCAD A-Modb us ® System Guidelines Intr oduction to SCAD A - Modbus Comm unications Use this section as a guide when using the Modb us ASCII protocol to communicate direct ly with the 980 Flo w Meter via an RS232 or modem connection.
Pag e 1 3 4 SCAD A-Modbus® System Guidelines Appendix E in the address field of th e message frame to let th e master know wh ich slav e is responding. The de vice address of the 980 Flow Meter is set via the front k eypad in the 980 Communication s menu.
Appendix E Pag e 1 3 5 SCAD A -Modbus® System Guidelines Comm unication P arameters T o successfully communicate with the 980 Flow Meter using M odbus ASCII, the communicat ion para meters of the m aster de vice must be set at 7 bits , Ev en P ar ity , and 1 Stop bit.
Pag e 1 3 6 SCAD A-Modbus® System Guidelines Appendix E T able 34 Chan nels’ Read Holdi ng Register Addres ses Name T ype Size (bits) # of Registers Star t Address Hi Start Address Lo Registers T e.
Appendix E Pag e 1 3 7 SCAD A -Modbus® System Guidelines Query The Modb us ASCII query must take th e fo r m shown bel ow that specif ies the star ting register a nd number of registers t o be read: F or e xample, to read the le ve l channel of the 980 Flo w Meter , the query must be as indicated in T ab le 38 .
Pag e 1 3 8 SCAD A-Modbus® System Guidelines Appendix E Response The 980 Flo w Meter responds with the f ollowing transmissio n reflecting a le vel reading of 15.0 inches: The flow meter response echoes t he address and functi on code, which indicates that no prob lems exist in the commu nication between the master and 980.
Appendix E Pag e 1 3 9 SCAD A -Modbus® System Guidelines Equipment (DTE) m ust assert and hold high the DT R line of the DB9 connector (DSR of mete r). The 980 Flow Meter does not su ppor t RTS/CTS hardw are handshaking. Note th at DTE must be capab le of handling a 12- second maximum response lag.
Pag e 1 4 0 SCAD A-Modbus® System Guidelines Appendix E Since the Modb us protocol doesn't de fine how float ing point v alues are handled or stored , some Modbu s-capab le servers incorrectly use the normal, “High word — Low word ” f o rmat for co nv er ting the Modbus messa ge response to the client application.
Appendix E Pag e 1 4 1 SCAD A -Modbus® System Guidelines that ran ge includes register addresse s greater the n 40083, the entire re quest will be ignored Response: Chec k the number of registe rs be.
Pag e 1 4 2 SCAD A-Modbus® System Guidelines Appendix E Prob lem: The data values be ing returned b y polling the meter with Modb us are not the same as the data values displayed in the current status scree n of the me ter . Response: Confirm that the corr ect register add resses are being polled.
Appendix E Pag e 1 4 3 SCAD A -Modbus® System Guidelines 980 SCAD A-Modbus “No Response” T r ou bleshooting Flow Chart (1 of 5) No response to polling Message. Continued on sheet 2. Apply power and turn the Meter on by pressing the "ON" button.
Pag e 1 4 4 SCAD A-Modbus® System Guidelines Appendix E 980 SCAD A-Modbus “No Response” T r ou bleshooting Flow Chart (2 of 5) Configure the Master device for 7 data bits , 1 stop bit and ev en par ity . Obtain a protocol conv er ter to conv er t the communication parameters to 7 data bits, 1 stop bit, and ev en par ity .
Appendix E Pag e 1 4 5 SCAD A -Modbus® System Guidelines 980 SCAD A-Modb us “No-Response” T rou b leshooting Flow Chart (3 of 5) Continued from sheet 2. Congratulations! Y ou hav e fixed it. Change the Modbus de vice address of the 980 in the "Communications Setup" menu of the 980.
Pag e 1 4 6 SCAD A-Modbus® System Guidelines Appendix E 980 SCAD A-Modb us “No-Response” T rou b leshooting Flow Chart (4 of 5) Congratulations! Y ou hav e fixed it.
Appendix E Pag e 1 4 7 SCAD A -Modbus® System Guidelines 980 SCAD A-Modbus “No Response” T r ou bleshooting Flow Chart (5 of 5) V erify the correct register addresses in Appendix H and change the address of the registers being requested as needed.
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Pag e 1 4 9 980 Quick- Start Guides Appendix F 980 Quick-Start Guides Main Pr ogram Flow Chart Main Menu Display Data Options Status Setup Login Lev el: 0.0 in Status Displa y Setup Flow: 0.0 mgd A uto-Display Status T otal (x1000): 0 gal Displa y T otalizer pH: 0.
Pag e 1 5 0 980 Quick- Start Guides Appendix F 980 Flow Meter Basic Pr ogramming Setup Flow Chart Main Menu Setup Displa ys Program Settings f or Revie w (no changes allowed).
Appendix F Pag e 1 5 1 980 Quick- Start Guides 980 Flow Meter Ad vanced Options Flo w Char t Main Menu Options Adv anced Options Select inputs. Pick one . Select Logged or Not Logged. Set logging inter val. Select units. Rainf all pH/mV T emp. V elocity Le vel/Flo w Ch.
Pag e 1 5 2 980 Quick- Start Guides Appendix F 980 Alarms Flo w Char t Main Menu Options Adv anced Options Alarms Pick one . Pick one . Pick one . Enable or Disable . Set T r igger P oint. Enable or Disable . Select Set Deadband. Set high T r igger P oint.
Appendix F Pag e 1 5 3 980 Quick- Start Guides 980 Flow Meter Calibration Flo w Char t Main Menu Options Adv anced Options Output A or Output B Place sensor in first buff er . Place on a flat surf ace and press any k ey . Press any k ey f or 4 mA. Enter temperature of liquid.
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At American Sig ma, customer service is an important part of every pr oduct we make. With that in mind, we have compiled the following informa tion for y our con venience.
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Pag e 1 5 7 P ar ts and Accessories P ar ts and Accessories Logger Mount ing Accessor ies Description Pa r t N u m b e r Rail / P ole Mounting ...................... ................ ................ ................ ............. ................ ...
Pag e 1 5 8 P ar ts and Accessories P ar ts and Accessories Mounting Ba nd for 21 in. Pipes .. ................ ................ ............. ................ ................ ................ .. ........... ......... 97063 00 Mounting Ba nd for 24 in.
Pag e 1 5 9 End.fm Or dering and T echnical Support Or dering and T echnical Support U .S.A. Customers Inf ormation Required Or dering Outside the U .S.A. Americ an Sigma maintains a wor ldwide net work of dealer s and distributors. T o locate the repr esentativ e nearest you, send E-mail to or con tact: intl@hach.
Pag e 1 6 0 Repair Service End.fm Repair Service A uthor ization must be obtained fro m Amer ican Sigma be f ore sendin g any items f or repair . Please contact the American Sigma Ser vice Center serving you r lo c a ti o n. In the United States or Outside Eur ope Americ an Sigma P .
Pag e 1 6 1 End.fm W arranty W arranty American Sigma warrants this pr oduct to the original pur chaser against an y defects that are due to faulty material or w orkmanship for a p eriod of one year fr om date of shipment.
Pag e 1 6 2 Certification Cer tification Hach Compan y cer tifies this instrument was tested thoroughly , inspected and f ound to m eet its published spec ifications when it was shipped from the f actor y .
Cer tification Pag e 1 6 3 Certification Additional Emissions Standar d/s include: EN 55011 (CISPR 11), Class “B ” emission limits Canadian Interference-causing Equi pment Regulation, IECS-003, Cl.
Pag e 1 6 4 Certification Cer tification designed to pro vide reasonable pro tection against harmful interf erence when the equipment is oper ated in a commercial environme nt.
Pag e 1 6 5 Index Inde x Numerics 4-20 mA Output Calibration ............. ............. ................ ............ 68 Programming ......................... ................ ......... 65 Wiring .................... ................ ................
Pag e 1 6 6 Index Inde x Level Units ............ ................ ............. ........... 61 , 117 Liquid Crystal Display ........... ................. ......... 19 , 59 Liquid Depth ....................... ............. ................ ...... 84 Logging Inter vals .
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Sigma 980 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Sigma 980 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Sigma 980, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Sigma 980 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Sigma 980, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Sigma 980.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Sigma 980. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Sigma 980 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
