Signet 5700 ph/orp Monitor - ORP Instructions

Transcription

1 Signet 5700 ph/ Monitor Instructions English * * Rev. K /06 English/ Contents 1. Power Connections. Compatible Electrode/Preamp Wiring. 4 0 ma Current Output Connections 4. Relay Connections 5. Relay Operation CAUTION! Refer to instruction manual for more details. Remove power to unit before wiring input and output connections. Follow instructions carefully to avoid personal injury. 6. Menu Functions 7. Parts and Accessories 8. Specifi cations 9. Quick Reference Menu Parameters 10. Troubleshooting 11. Maintenance Remove terminal blocks for easy wiring Freq. IN Freq. IN Sen. Pwr. Iso. Gnd Gnd Gnd PLS AUX output output Std. Sensor Open Collector Sensor LISTED UL 77CJ 14 V 10 W 1 Total reset Patent No. D76,8 Flow 1 Freq. IN Freq. IN Sen. Pwr. Iso. Gnd Gnd Gnd PLS AUX output output Std. Sensor Open Collector Sensor LISTED UL 77CJ 14 V 10 W 1 Total reset Patent No. D76,8 Flow Power Connections. Compatible Electrode/Preamp Wiring CAUTION! Never connect 110 VAC or 0 VAC to rear power terminals. High voltage AC will damage instrument and void warranty. 14 V 10 W 5700 Terminals External power supply 1 4 VDC OR 1 4 VAC mv Input Brown wire Silver (earth ground) Brown Iso. Gnd Blue wire Blue T Green wire Green T White wire White Red Black V Red Wire V Black wire 40 ma ph/ Preamp: Signet 70 TwistLock Electrodes 5700 Terminals DryLoc Electrodes Preamp: Signet 7601 Signet 760 = Double Insulated = DC or AC power Technical Notes: To reduce the possibility of noise interference, isolate AC power lines from signal lines. Maximum 40 ma loop impedance (sec. ) is affected by the supply voltage. Use six conductor shielded cable for cable extensions up to 10 m (400 ft) max. (#550064) Cable shield must be maintained through cable splice.

2 . 4 0 ma Current Output Connections Technical Notes: **1/8A fuse recommended (customer supplied) * 40 ma output is internally powered (nonisolated), maximum loop impedance 50 Ω with a 1 V instrument supply voltage, 950 Ω with a 4 V instrument supply voltage. To isolate output and prevent ground loop problems: 1. Use monitor device with isolated inputs, or. Use separate DC supply for 5700 and monitor device, or. Power 5700 with1 4 VAC step down transformer 4. Relay Connections Two internal relay contact sets (COM, NO, and NC) may be used for external device control. Front panel LED annunciators indicate the activation status of each relay. Each relay can control up to two devices simultaneously, as shown. Relay operation modes include Low alarm, High alarm, and Proportional Pulse (sec. 5). Common device connections include: Pulse mode metering pump control Pulse mode solenoid valve control Low or High mode warning lamps Low or High mode bells or sirens Low or High mode external heavyduty relay Wiring Example Right Device A IS powered when relay is deenergized (front panel LED off ). Power is discontinued when the relay setpoint is reached (front panel LED on ). Device B IS NOT powered when the relay is deenergized. Power is applied after the relay setpoint is reached Terminals Fuse** 1/8A 40 ma Relay ph/ Relay 1 NO C NC NO C NC External AC/DC power Relay Deenergized NO C NC Device A Device B Relay Energized Technical Notes: Maximum relay contact ratings: 5 0 VDC, 5 15 VAC, or 50 VAC An external heavyduty relay must be used for devices with surge currents or operating currents that exceed the above specifi cations. * 5700 Terminals 4 0 ma NO C NC 5. Relay Operation A. LOW alarm mode The relay is energized when the drops below the setpoint, and is deenergized when the rises above the setpoint plus hysteresis (sec. 6.D, 6.E). Low setpoint= B. HIGH alarm mode The relay is energized when the rises above the setpoint and is deengergized when the falls below the setpoint plus hysteresis (sec. 6.D, 6.E). High setpoint= Adjustable hysteresis= Adjustable hysteresis= Relay energized= Relay deenergized= Relay energized= Relay deenergized= C. Proportional PULSE mode The proportional pulse relay configuration is primarily designed for metering pump control. The operator is prompted to enter a minimum and maximum setpoint and maximum pulse rate for the assigned relay (sec. 6.F, 6.G). Relay pulse width is fixed at 10 ms. Refer to the operation examples below. Metering pump chemical addition (dry contact activation type required) Example 1 (right): As the process rises above the minimum pulse setpoint (500 mv) the relay begins pulsing; triggering the metering pump for chemical addition. As the continues to rise, pulsing accelerates proportionally until the maximum programmed pulse rate of 00 pulses/minute and setpoint (500 mv) are reached, forcing the process back down to intended levels (e.g. 500 mv) mv 0 pulses Relay 1 Rate: 00 Pulses/min > Relay 1 or Relay 00 pulses 500 mv 500 mv 1000 mv Example (right): As the process falls below the minimum pulse setpoint (500 mv) the relay begins pulsing; triggering the metering pump for chemical addition. As the continues to decrease, pulsing accelerates proportionally until the maximum programmed pulse rate of 00 pulses/minute and setpoint (500 mv) are reached, forcing the process back up to intended levels (e.g. 500 mv). 00 pulses Relay 1 or Relay 0 pulses 1000 mv 500 mv 500 mv 1000 mv Signet 5700 ph/ Monitor Instructions

3 ENTER 6. Menu Functions To access either CALIBRATE or OPTIONS menus, press and hold the ENTER key as illustrated below: Press & hold ENTER key for access: ENTER Menus: VIEW menu (sec. 6.1): The VIEW menu is displayed during standard operation. The operator can navigate freely through the menu by pressing either UP or DOWN arrow keys. CALIBRATE Menu (sec. 6.): The CALIBRATE menu contains all critical display setup and output parameters. A simple security code feature prevents unauthorized tampering. The operator is required to enter a simple access code for menu access. The same code also unlocks OPTIONS menus. VIEW (sec. 6.1) CALIBRATE (sec. 6.) OPTIONS (sec. 6.4) seconds 5 seconds OPTIONS Menu (sec. 6.4): The OPTIONS menu contains setup and display features that are seldom accessed for minor display or output adjustments. Reversible Dial Your 5700 includes a reversible dial face for ph use. See enclosed ph manual for operation details. A B 0 14 ph ph 0 ALARM 1 ALARM C ALARM 1 ALARM D 6.1 VIEW Menu G 1 Choose: Change: Save: Menu Displays A G: (Factory default displays shown in menu column 1) A. mv/raw mv A. Shows calibrated solution mv and Raw (uncalibrated) input mv from electrode/preamplifi e r B. C. Loop output B. Loop output display: shows the loop current output level. C. range display: shows the programmed min and max meter range (sec. 6.A) D. E. Range Relay 1 Relay D. Relay 1 display: this display shows the programmed operation mode and setpoint for relay 1 (sec. 6.DE) E. Relay display: this display shows the programmed operation mode and setpoint for relay (sec. 6.DE) F. G. Last calibration Buffer calibration A Press and release to access EASY CAL Procedure See EASY CAL Procedure (Section 6.) F. Last calibration: this display shows a user defi ned setup date for maintenance records. This feature is not an internal timer or calender. G. EASY CAL: press the right arrow key to access the EASY CAL buffer calibration procedure (sec. 6.). Signet 5700 ph/ Monitor Instructions

4 6. EASY CAL Procedure Requirements This procedure simplifi es system calibration using standard ph 4.0 and 7.0 buffers saturated with Quinhydrone (customer supplied). If standard ph 4.0 and 7.0 buffers and Quinhydrone are not available, the system can be calibrated using the CALIBRATE menu standard and slope settings (sec. 6.B, 6.C). Quinhydrone (customer supplied) is the oxidizer measured by the electrode and is essential for EASY CAL calibration. To guarantee saturation with ph 4.0 and 7.0 buffers, mix 1/8 g (1/4 ml) of Quinhydrone powder for each 50 ml of ph buffer solution (sec. 7). Press keys in sequence to continue, will appear during code entry. 1 To Calibrate: Response: To Accept: Place electrode tip in first ph buffer saturated with Quinhydrone; Allow for stabilization Press ENTER to accept first buffer calibration. Displayed Data mv: Shows the calibrated solution oxidation reduction potentioal (). Input mv: Shows the actual Raw (uncalibrated) preamplifi er electrode input ph mv ph mv 1 0 seconds* For best results, gently stir the submerged electrode for approximately 5 seconds during the stabilization period (step ). Place electrode tip in second (different) ph buffer saturated with Quinhydrone; Allow for stabilization Press ENTER to accept second buffer calibration. ph mv ph mv 0 seconds* Display returns to VIEW Menu in s To exit EASY CAL at any time without saving changes: quick press Technical Note: The differences between input mv and mv is a good indication of the electrode's condition. Differences in excess of 50 mv may indicate a need to service the electrode. Refer to electrode manual for maintenance recommendations. Theoretical mv values 5 C mv Signet 5700 ph/ Monitor Instructions

5 6. CALIBRATE Menu Requirements System calibration is possible with two known solutions within 1000 mv 000 mv. The EASY CAL procedure (sec. 6.) is recommended when standard ph buffers and Quinhydrone are available. If EASY CAL is performed, manual calibration steps BC below are not required and should be skipped. Press keys in sequence will appear during code entry. to continue, H A. B. C. 1 Choose: Range Electrode standard Meter min max Allow for stabilization Change: Save: Menu Settings A H: (Factory default displays shown in menu column 1) A. Sets Min Max meter dial range, 1000 mv 000 mv (factory installed dial, 1000 mv 1000 mv). Contact factory for custom dial confi gurations. Does not effect 4 to 0 ma output B. Sets electrode standard to any value from 1000 mv to 000 mv (standard value must be 10 mv from slope value, step C) D. Electrode slope Relay Allow for stabilization Relay Low or High Mode Selected Mode Setpoint ENTER C. Sets electrode slope to any value from 1000 mv to 000 mv (slope value must be 10 mv from standard value, step B) Menu items DG repeat for relay setup. E. Relay Hysteresis "SAVING" briefly displays D. Sets relay operation mode Low or High, and (mv) setpoint, 1000 mv 000 mv (sec. 5AB) F. Relay Pulse Mode Selected, step D E. Sets relay hysteresis, mv. Set to zero to disable feature (sec. 5AB) G. Relay Relay Mode Pulse rate Range F. Sets relay minimum and maximum pulse setpoint, 1000 mv 000 mv (sec. 5C) G. Sets relay pulse rate, pulses/minute. H. To return to VIEW: Last calibration A quick press Optional To restore original value: quick press H. Sets user defi ned setup date for maintenance records. This feature is not an internal timer or calender Quick Reference Calibration Procedures: Point Quick Calibration (recommended): 1. Set solution standard (step B). Set solution slope (step C) 1Point Calibration (optional): 1. Set solution standard (step B) Signet 5700 ph/ Monitor Instructions 5

6 6.4 OPTIONS Menu Press keys in sequence will appear during code entry. to continue, E A. 1 Choose: Change: Save: Menu Settings A E: (Factory default displays shown in menu column 1) Contrast Low High A. Selects display contrast: 5 levels B. Loop output 4 ma setpoint B. Sets 4 ma setpoint: mv. 4 ma and 0 ma setpoints are reversible C. D. Loop output 0 ma setpoint ENTER "SAVING" briefly displays C. Sets 0 ma setpoint: mv. 0 ma and 4 ma setpoints are reversible D. Adjusts 4 ma output:.0 to 5.0 ma (overrides factory 4.00 ma calibration) E. Loop output 4 ma adjust E. Adjusts 0 ma output: 19 to 1 ma (overrides factory 0.00 ma calibration) To return to VIEW: Loop output A quick press 0 ma adjust To restore original value: quick press 7. Parts and Accessories Splashproof rear cover # (code ) 5 x 5 inch adapter plate for Signet retrofi t # (code ) Optional surface mount bracket # (code ) Power supply, 10 VAC 4 VAC, # ph buffer kit, ph 4.0, 7.0, 10.0, # (code ) Front snapon bezel, # (code ) 5700 ph/ instruction sheet, # (code ) 6 Signet 5700 ph/ Monitor Instructions

7 8. Specifications General Compatible sensors: Signet 70 ph/ Preamplifi er/ Sensor System Accuracy: ±0.% of full scale Input range: : 1000 to 000 mv, optically isolated (standard 1000 to 1000 mv dial included) Enclosure: Rating: NEMA 4X/IP65 front Dimensions: 1/4 DIN, 96 x 96 x 88 mm (.8 x.8 x.5 in.) Case: ABS plastic Keypad: Sealed 4key silicone rubber Weight: Approximately 500 g (18 oz.) Display: Type: Microprocessor controlled aircore meter movement and backlit Alphanumeric x 16 LCD Update rate: <1s Contrast: User selected Relay annunciators: LEDs Electrical Power requirements: 1 to 4 VDC or 1 to 4 VAC, unregulated, 5060 Hz, 10 W max. Relay contacts ( sets): Mechanical SPDT contacts Max. voltage rating: 5 0 VDC, 5 15 VAC, or 50 VAC, (power factor = 1.0) Hysteresis: User adjustable Current output: 4 to 0 ma, nonisolated, internally powered, fully adjustable and reversible Update rate: <1s Max loop impedance: 50 Ω with a 1 V instrument supply voltage, 950 Ω with a 4 V instrument supply voltage Accuracy: ±0.1% of max. range Noise immunity: Noise emissions: Safety: EN5008 EN55011 EN Environmental Operating temp.: 10 to 55 C (14 to 11 F), 50 C (1 F) with optional rear cover Storage temp.: 15 to 80 C (5 to 176 F) Relative humidity: 0 to 95%, noncondensing Altitude: 4000 m max. Pollution degree: Agency Approvals CE, UL listed Manufactured under ISO 9001 Dimensions 96 mm (.8 in.) Panel Gasket Optional Splashproof Rear Cover # RELAY 1 RELAY Mounting Panel Mounting Clamp ( ea.) mm (.8 in.) 91 mm (.6 in.) 88 mm (.5 in.) ENTER Side View Signet Monitor Front View 76 mm ( in.) 96 mm (.8 in.) 88 mm (.5 in.) Signet 5700 ph/ Monitor Instructions (continued) 7

8 Dimensions 88 mm (.5 in.) UL LISTED 77CJ Signet Model # V 10 W mv Input Brown wire Iso. Gnd Blue wire T Green wire T White wire V Red Wire Relay V Black wire NO C NC NO C NC 40 ma Relay 1 Patent No. D 76,8 ph/ 88 mm (.5 in.) 9 x 9 mm (.6 x.6 in.) Rear View Panel cutout 9. Quick Reference Menu Parameters 9.1 VIEW Menu Setup Parameters (sec. 6.1) Menu Parameters Display Description Range Factory Default A. mv Raw sensor mv 1000 mv 000 mv 1000 mv 000 mv n/a n/a B. Current loop output 1 ma n/a C. Min Max meter and dial range 1000 mv 000 mv 1000 mv 1000 mv D. Relay 1 mode Relay 1 setpoint Low, High, or Pulse, mv Low 500 mv E. Relay mode Relay setpoint Low, High, or Pulse, mv High 500 mv F. Last calibration date G. EASY CAL procedure Two ph buffers saturated with Quinhydrone required: ph 4= 87 mv, ph 7= 64 mv, (sec. 6.) n/a 8 Signet 5700 ph/ Monitor Instructions

9 9. CALIBRATE Menu Setup Parameters (sec. 6.) Menu Parameters Display Description Range Factory Default A. Min max meter/dial range mv mv B. Manual electrode standard calibration mv n/a C. D. E. Manual electrode slope calibration Relay 1 mode Relay 1 setpoint Relay 1 hysteresis mv Low or High mv mv n/a Low 500 mv 10 mv Relay mode and setpoint displays repeat for relay setup F. Relay 1 mode Relay 1 range Pulse mv mv G. Relay 1 pulse rate pulses/minute 10 pulses/minute H. Last calibration date OPTIONS Menu Setup Parameters (sec. 6.4) Menu Parameters Display Description Range Factory Default A. Display contrast 0 to 5 B. 4 ma setpoint mv 1000 mv C. 0 ma setpoint mv 1000 mv D. 4 ma adjust.0 to 5.0 ma 4.00 ma E. 0 ma adjust 19 to 1 ma 0.00 ma Signet 5700 ph/ Monitor Instructions 9

10 10. Troubleshooting Display Problem Solution ph 5.0 C (Example ) ph electrode installed in preamplifi er Remove ph electrode and replace with recommended electrode (sec. ).. CHECK SENSOR?. Out Of Range Use Manual Cal Electrode not installed in preamplifi er mv input from preamplifi er out of range ( 1000 mv) Missing or wrong electrode identifi cation resistance applied to rear T and T terminals. ph buffers other than ph 4 and 7 saturated with Quinhydrone used during EASY CAL procedure; ph 4= 87 mv, ph 7= 64 mv 1) Verify preamplifi er/electrode input connections and electrode installation (sec. ). ) Disconnect Green and White preamplifi er wires from rear T and T terminals. Measure electrode identifi cation resistance across disconnected wires for 9.0 kω 10.8 kω. If measured resistance is out of range: Wrong electrode installed in preamplifi er (ph electrode = 5 C (77 F)) Faulty preamplifi er contacts, see preamplifi er manual for additional information Faulty electrode, see electrode manual for additonal information ) To verify instrument: Disconnect Green and White preamplifi er wires from rear T and T terminals, then install a 10 kω fi xed resistor across the terminals. Disconnect Brown and Blue preamplifi er wires from rear mv Input and Iso. Gnd terminals. Install shorting strap (jumper) across mv Input and Iso. Gnd terminals. Power instrument and verify 0 mv on the Input mv display (sec. 6.B). If 0 mv ±5 mv are not displayed, the instrument requires factory calibration. If Input mv are within ±5 mv, calibrate instrument Set Standard for 0 mv (sec. 6.B). If instrument displays correctly after calibration, instrument is ok; preamplifi er and/or electrode problem exists. Refer to preamplifi er and electrode manual for troubleshooting information. Use ph 4 and 7 buffers (ONLY) saturated with Quinhydrone for EASY CAL procedure (sec. 6.). The EASY CAL procedure simplifi es manual Standard and Slope calibration in the CALIBRATE Menu (sec. 6). The instrument can be calibrated using two buffers of known by this method (sec. 6.B, 6.C). If manual calibration is performed, the EASY CAL procedure is not required. 4.! Same Buffer Same ph buffer used for EASY CAL solution #1 and solution # Use different buffer saturated with Quinhydrone for EASY CAL procedure solution #1 and solution # (sec. 7). Do not calibrate both points with the same buffer! 5. : 000 mv Input: 000 mv (display stuck at 000 mv) Excessive mv input from preamplifi er Faulty preamplifi er, refer to preamplifi er manual for additional information To verify instrument input: Disconnect Brown and Blue preamplifi er wires and install shorting strap (jumper) across rear mv input and Iso Gnd terminals. Power instrument and verify 0 mv on display. If 0 mv is not displayed, calibrate Standard input for 0 mv (sec. 6.B) If instrument displays correctly after calibration, instrument is ok. If error condition persists, instrument requires factory service. 10 (continued) Signet 5700 ph/ Monitor Instructions

11 Display Problem Solution 6.! must be 000 or less (mv) input greater than 000 mv, or improperly entered during Standard or Slope calibration A) Use solution of known within mv range B) Enter mv value within 1000 mv 000 mv during standard or slope calibration (sec. 6.B, 6.C) 7. Slope Too Close To Standard 8. Value Must Be 1000 Or More 9. Value Must Be 000 Or Less 10. Value Must Be 00 Or Less 11. SETUP READ ERROR Press any Key slope calibration too close to standard calibration Relay, 4 ma, or 0 ma (mv) setpoint entered out of range Relay, 4 ma, or 0 ma (mv) setpoint entered out of range Relay pulse setting greater than 00 pulses per minute Power fault occurred while saving setup menu entry (CALIBRATE Menu sec. 6. only) Calibrate slope using an solution 10 mv from the standard solution (sec. 6.C). Enter setpoint within mv range (sec. 6., 6.4) Enter setpoint within mv range (sec. 6., 6.4) Enter relay pulse setting within 0 00 pulses per minute (sec. 6.F) Press any key to reload factory defaults then reprogram system setup parameters. 11. Maintenance Clean the instrument case and front panel with a soft cloth and a mild soap solution. Notes: Signet 5700 ph/ Monitor Instructions 11

12 George Fischer Signet, Inc. 401 Aerojet Avenue, El Monte, CA U.S.A. Tel. (66) Fax (66) For Worldwide Sales and Service, visit our website: Or call (in the U.S.): (800) Rev. K /06 English/ George Fischer Signet, Inc Printed in U.S.A. on recycled paper