+GF+ SIGNET ph/orp Transmitter Instructions

Transcription

1 GF SIGNET 8750 ph/orp Transmitter Instructions ENGLISH A9/99 English CAUTION! Remove power to unit before wiring input and output connections. Follow instructions carefully to avoid personal injury. Contents. Installation. Specifications. Electrical Connections. Menu Functions ph/orp 0.0 ph 5.0 C Relay Relay. Installation The transmitter is available in two versions: a panel mount version, and an integral version for installation near the sensor (universal assembly) gasket panel. Panel Installation The Panel Mounting kits are supplied with the hardware to install instrumentation into panels and maintain a NEMA X seal. latch terminals mounting bracket. Punch out panel and deburr edges. Recommended clearance on all sides between instruments is inch.. Place gasket on instrument, and install in panel.. Slide mounting bracket over back of instrument until quickclips snap into latches on side of instrument.. Connect wires to terminals. 5. To remove, secure instrument temporarily with tape from front or grip from rear of instrument. DO NOT RELEASE. Press quickclips outward and remove. quickclip. Universal Assembly (8050). Install transmitter base. Connect wires to transmitter.. Close unit and secure with push and twist lock. Seal cable entry. wires seal. Specifications General Compatible electrodes: GF SIGNET 70 ph/orp Preamplifier/Electrode Accuracy: ±0.0 ph, ± mv's ORP Enclosure: Rating: NEMA X/IP65 front Case: PBT Window: Polyurethane coated polycarbonate Keypad: Sealed key silicone rubber Weight: Approx. 5g ( oz.) Display: Alphanumeric x 6 LCD Contrast: User selected, 5 levels Update rate: second Environmental Operating temperature: 0 to 70 C ( to 58 F) Storage temperature: 5 to 80 C (5 to 76 F) Relative humidity: 0 to 95%, noncondensing Electrical Sensor input range: ph: 0.00 to.00 ph temp. K Balco, 5 to 0 C ( to 8 F) ORP: 000 to 000 mv, isolated (0KΩ I.D. resistance T, T) Current output: to 0 ma, isolated, fully adjustable and reversible : to VDC ±5%, regulated Max loop impedance: 50 Ω V, 5 Ω 8 V, 600 Ω V Update rate: 0.5 seconds Accuracy: ±0.0 5 C, V Relay outputs ( sets): Mechanical SPDT contacts: Hi, Lo, Pulse Programmable Maximum voltage rating: 5 0 VDC, or 5 50 VAC resistive load Hysteresis: Useradjustable Standards and Approvals CSA, CE, UL listed Manufactured under ISO 900 GF SIGNET 8750 ph/orp Transmitter Instructions page of 8

2 Field Mount 96 mm (.8 in.) 96 mm (.8 in.) 8 mm (. in.) Panel Mount 06 mm (.8 in.) 96 mm (.8 in.) 96mm (.8 in.) Optional Rear Cover Panel Cutout 9 x 9 mm ( 0.8, 0 mm).6 x.6 in. (0.0, 0 in.) mm (.6 in.) 97 mm (.8 in.) 56 mm (. in.). Electrical Connections Caution: Failure to fully open terminal jaws before removing wire may permanently damage instrument. Wiring Procedure. Remove in. (6 mm) of insulation from wire end.. Press the orange terminal lever downward with a small screwdriver to open terminal jaws.. Insert exposed (noninsulated) wire end in terminal hole until it bottoms out.. Release orange terminal lever to secure wire in place. Gently pull on each wire to ensure a good connection. Wiring Removal Procedure. Press the orange terminal lever downward with a small screwdriver to open terminal jaws.. When fully open, remove wire from terminal... Description VDC System /Loop. System /Loop. System /Loop Relays 5. Relay NC contact 6. Relay COM contact 7. Relay NO contact 8. Relay NC contact 9. Relay COM contact 0. Relay NO contact Preamplifier/Sensor Input. Red (V). Black (V). Shield (Sensr GND). Earth GND 5. Brown (mv input) 6. Blue (ISO GND) 7. Green (Temp) 8. White (Temp) VDC ±5%, system power and current loop connections. Max. loop impedence: 50 Ω V, 5 Ω 8 V, 600 Ω V Relay / contact sets programmable as: High/Low alarm with adjustable hysteresis Proportional pulse output Disable (Off) selection Preamplifier positive Preamplifier negative Preamplifier shield Connect if electrical noise is present Preamplifier mv output Preamplifier ground TC element (K Balco ph, 0KΩ ORP ID resistance) TC element (K Balco ph, 0KΩ ORP ID resistance) Wiring Tips: Do not route sensor cable in conduit containing AC power wiring electrical noise may interfere with sensor signal. Routing sensor cabling in grounded metal conduit may prevent moisture damage, electrical noise, and mechanical damage. Seal cable entry points to prevent moisture damage. When placing two wire ends into a single terminal, solder or crimp ends together. System Pwr Loop System Pwr Loop Relay (NO) Relay (COM) Relay (NC) Relay (NO) Relay (COM) Relay (NC) Temp (WHITE) Temp (GREEN) Iso. GND (BLUE) mv Input (BROWN) Earth GND Sensr Gnd (SHIELD) V (BLACK) V (RED) page of 8 GF SIGNET 8750 ph/orp Transmitter Instructions

3 . System /Loop Connections Standalone application, no current loop used Connection to a PLC with builtin power supply Transmitter Loop Loop DC V Transmitter Loop Loop Internal PLC Connection PLC Ground Loop Input 0 ma Loop Input 0 ma Connection to a PLC/Recorder, separate supply Transmitter Loop Loop PLC or Recorder DC V Loop Input 0 ma in Loop Input 0 ma in Example: Two transmitters connected to PLC/Recorder with separate power supply Transmitter DC V Loop Loop Transmitter Loop Loop PLC or Recorder Channel 0 ma in Channel 0 ma in Channel 0 ma in Channel 0 ma in. Sensor Input Connections Wiring Tip: Do not route sensor cable in any conduit containing AC power wiring electrical noise may interfere with the signal. * White (Temp) Green (Temp) Blue (ISO GND) Brown (mv input) Silver (Shield) Black (V) Red (V) * (connection of terminal to Earth GND may reduce electrical interference) Preamp: GF SIGNET 70 ph Electrodes GF SIGNET 7, 7HF GF SIGNET 76 ORP Electrodes: GF SIGNET 75 GF SIGNET 77. Relay Functions Low: Output triggers when process variable is less than setpoint. High: Output triggers when process variable is higher than setpoint. Example: In Low Alarm Mode Operation, the output becomes active when the process drops below the setpoint, and becomes inactive when the process rises above the setpoint plus hysteresis. The opposite is true for High Alarm Mode. Disable: Disables output. Proportional Pulse Mode Operation The output emits a 00 ms pulse (simulated contact closure) at rate defined by the Output, Pulse Range, Output Rate, and the process condition (0 to 00 pulses/minute, as programmed) Example: As the process falls below 0 the output will start pulsing in relation to the process value, the max pulse endpoint and the programmed pulses/min. Pulse rate will increase as the process approaches the programmed endpoint. 00 pulses Hysteresis Process Output Active Output Inactive 0 = pulses/min. 7.5 = 50 pulses/min. 5 = 00 pulses/min. Pulse rate Relay or Relay Output Rate: 00 Pulses/min> 0 pulses Setpoint Time 5 Relay : Pulse > 0 Start max. pulse endpoint Process variable GF SIGNET 8750 ph/orp Transmitter Instructions page of 8

4 . Menu Functions ph VIEW Menu: is displayed during standard operation. Press UP or DOWN buttons to view process parameters. Press UP and DOWN buttons at the same time, to exit any other display and return to VIEW menu. Display will return to VIEW menu in 0 minutes unless a key is pressed. CALIBRATE Menu: contains display setup and output parameters. A security code feature prevents unauthorized tampering. To access CALIBRATE menu: Press button for seconds to display: Press UP, UP, UP, DOWN buttons in sequence to display: CALIBRATE: CALIBRATE: XXXX OPTIONS Menu: contains setup and display features for minor display or output adjustments. To access OPTIONS menu: Press button for 5 seconds to display: Press UP, UP, UP, DOWN buttons in sequence to display: OPTIONS: OPTIONS: XXXX Menu Tips Right button scrolls to right, from top to bottom row, and allows editing when ">" symbol is shown. In CALIBRATE or OPTIONS menus, the transmitter will continue to measure and control outputs. When > is pressed, the input value is held at the last measured process value. When sensor is not connected, unit will display CHECK SENSOR and any output controlled by sensor will be at.6 ma or OFF. Example To change date, first enter CALIBRATE menu (Press button for seconds; Press UP, UP, UP, DOWN buttons in sequence) Once in CALIBRATE menu, press UP button time.. Display shows right arrow. Press RIGHT button to display "0" blinking. Press buttons to scroll through numbers.. Press button to save 5. Display now reads new date 0099 > SAVING GF SIGNET GF SIGNET GF SIGNET GF SIGNET GF SIGNET Menu Functions ph View Menu Range Calibrate Menu Range Preset Options Menu Range Preset ph: 05 ph Set: ± 5 C N/A Contrast: 5 Temp: 0 00 C Temperature > Level > Input: ± 999 mv Set: 0 N/A Averaging: Off Off mv Standard > ph Off > Low (secs) Loop Output: 0 ma Set: 0 N/A High (8secs) ma Slope > ph Temp Display: C C Last Cal: Loop Range: ph 0 ph 0 > ph C > F Date to 0.00 >.00 > ma Adjust:.8 to (ma) (0 ma) > 5.0 ma ma Easy Buffer solutions 0 ma Adjust: 9.0 to 0.00 Cal: >, 7, 0 Relay Source: ph or ph (Relay) >.0 ma ma ph > Temp. Temp (Relay) Test Loop: 0 ma N/A Relay Mode: Off Low (Relay) > Low > Low Hi (Relay) Test Relay: On or N/A Hi > Off Pulse Test Relay: On or N/A Low or High selected > Off Relay Setpnt: 0.0 ph (Relay).00 ph > ph 5 C (Relay) Relay Hys: ph (Relay) Settings repeat for Relay 0.50 ph > ph.0 C (Relay) Pulse selected Relay Range: ph 0 ph >0 ph (Relay).00 > 0.00 > 5>80 C(Relay) (Start>Endpoint) Relay PlsRate: pulses/min > pulses/min pulses/min Last Cal: to > 9999 page of 8 GF SIGNET 8750 ph/orp Transmitter Instructions

5 EASY CAL Procedure ph This procedure simplifies system calibration using standard ph buffers. Use.0, 7.0, 0.0 ph buffers only. If standard ph buffers are not available, the system can be calibrated using the CALIBRATE menu STANDARD and SLOPE settings. Access CALIBRATE menu and set sensor temperature before performing EASY CAL for new electrode installations. EASY CAL: To Calibrate: Response: To Accept: Place Sensor in ph Buffer # Place electrode tip in first ph buffer ph 7.0 = 0 mv ph.0 = 77 ph 0 = 77 Limit ± 50 mv Place Sensor in ph Buffer # Place electrode tip in second ph buffer. To exit menus and return to VIEW press UP and DOWN button at the same time Press UP, UP, UP, DOWN buttons in sequence to enter menu, XXXX will appear during code entry. * 6.90 ph 005 mv Allow for stabilization 0 seconds* *.9 ph 79 mv to accept Allow for stabilization Press to accept second buffer calibration. 0 seconds* Display returns to VIEW Menu in 0 minutes or when is pressed * 6.90 ph 005 mv * 7.00 ph 005 mv *.9 ph 79 mv *.00 ph 79 mv Good Easy Cal Press <> * For best results, gently stir the submerged electrode for approximately 5 seconds during the stabilization period. Large temperature differences from process fluids to buffers may require longer stabilization time. Theoretical mv values 5 C mv Technical notes: The difference between the actual mv and value shown is a good indication of the condition of the electrode. Differences in excess of 50 mv may indicate a need to service the electrode. Troubleshooting ph Display Problem Check Sensor? Out of Range Check Sensor Over or under range No sensor detected You may enter the CALIBRATION and OPTIONS menu to program setpoint values even though Check Sensor? is displayed. Electrode not installed in preamplifier Solution Verify Connect sensor/preamplifier or proper resistance for unit of measure. KΩ for ph.. Install sensor in preamp. Verify K Balco connection to transmitter (White/Green wires from preamplifier) Out of Range Use Manual CAL! Same Buffer 5.00 ph Temperature or 0.00 ph Temperature. Did not use ph, 7, 0 buffers. Excessive probe mv offset Same buffer used for Standard and Slope. Not allowable due to gain term of Zero. Excessive positive or negative mv input from preamplifier. Use ph, 7, 0 buffers. Clean probe and retry EASY CAL. Use Manual calibration for Standard and Slope if mv offset exceeds 50 mv. Place probe in alternate buffer solution.. Verify preamplifier wiring. Check preamplifier with 79 preamplifier tester.. Disconnect preamp. "Out of Range Check Sensor" should appear Standard too close to Slope! Slope too close to Standard! SETUP READ ERROR Press Any Key. ph Standard value within ph units (0 mv) of Slope value. Probe efficiency is too small. ph Slope value within ph units (0 mv) of Standard value. Probe efficiency is too small Memory fault occurred GF SIGNET 8750 ph/orp Transmitter Instructions. Use ph values with a greater difference in reading.,7,0. Maintain probe and retry. Use ph values with a greater difference in reading.,7,0. Clean probe and retry Press any key to reload presets, then reprogram setpoints page 5 of 8

6 . Menu Functions ORP VIEW Menu: is displayed during standard operation. Press UP or DOWN buttons to view process parameters. Press UP and DOWN buttons at the same time, to exit any other display and return to VIEW menu. Display will return to VIEW menu in 0 minutes unless a key is pressed. CALIBRATE Menu: contains display setup and output parameters. A security code feature prevents unauthorized tampering. To access CALIBRATE menu: Press button for seconds to display: Press UP, UP, UP, DOWN buttons in sequence to display: CALIBRATE: CALIBRATE: XXXX OPTIONS Menu: contains setup and display features for minor display or output adjustments. To access OPTIONS menu: Press button for 5 seconds to display: Press UP, UP, UP, DOWN buttons in sequence to display: OPTIONS: OPTIONS: XXXX Menu Tips Right button scrolls to right, from top to bottom row, and allows editing when ">" symbol is shown. In CALIBRATE or OPTIONS menus, the transmitter will continue to measure and control outputs. When > is pressed, the input value is held at the last measured process value. When sensor is not connected, unit will display CHECK SENSOR and any output controlled by sensor will be at.6 ma or OFF. Example To change date, first enter CALIBRATE menu (Press button for seconds; Press UP, UP, UP, DOWN buttons in sequence) Once in CALIBRATE menu, press UP button time.. Display shows right arrow. Press RIGHT button to display "0" blinking. Press buttons to scroll through numbers.. Press button to save 5. Display now reads new date 0099 > SAVING GF SIGNET GF SIGNET GF SIGNET GF SIGNET GF SIGNET Menu Functions ORP View Menu Range Calibrate Menu Range Preset Options Menu Range Preset ORP mv: 000 to Set: 000 to N/A Contrast: 5 Input mv: 000 mv Standard > 000 mv Level > Loop Output: 0 ma Set: 000 to N/A Averaging: Off Off ma Slope > 000 mv Off > Low (secs) Last Cal: to Loop Range: mv 000 to 000 > High(8secs) Date >000 > 000 mv 000 mv Loop Adjust:.8 to.00 Easy 87 and (ma) (0 ma).00 ma > 5.0 ma ma Cal: > 6 mv Loop Adjust: 9.0 to 0.00 solutions Relay Mode: Off Low (Relay) 0.00 ma >.0 ma ma Low > Low Hi (Relay) Test Loop: 0 ma N/A Hi > Pulse Test Relay: On or N/A Low or High selected > Off Relay Setpnt: 000 to 500 mv Test Relay: On or N/A 500 mv > 000 mv > Off Relay Hys: 0 to 0 mv Settings repeat for Relay 0 mv > 000 mv Pulse selected Relay Range: mv 000 to 500 to 500 > 500 > 000 mv 500 mv (Start>Endpoint) Relay PlsRate: pulses/min > pulses/min pulses/min Last Cal: to > 9999 page 6 of 8 GF SIGNET 8750 ph/orp Transmitter Instructions

7 EASY CAL Procedure ORP This procedure simplifies system calibration using standard ph buffers. Use.0, 7.0 buffers saturated with Quinhydrone (customer supplied). If standard ph buffers are not available, the system can be calibrated using the CALIBRATE menu STANDARD and SLOPE settings. Access CALIBRATE menu and set sensor temperature before performing EASY CAL for new electrode installations. EASY CAL: Press UP, UP, UP, DOWN buttons in sequence to enter menu, will appear during code entry. To Calibrate: Response: To Accept: Place Sensor in ORP Buffer # Place electrode tip in first ph buffer; ph mv ph.0 6 mv * ORP: 8 mv Input: 8 mv Allow for stabilization 0 seconds* * ORP: 8 mv Input: 8 mv to accept * ORP: 87 mv Input: 8 mv * For best results, gently stir the submerged electrode for approximately 5 seconds during the stabilization period. Large temperature differences from process fluids to buffers may require longer stabilization time. Place Sensor in ORP Buffer # * ORP: 6 mv Input: 60 mv * ORP: 6 mv Input: 60 mv Place electrode tip in second (different) ph buffer. ph.0 6 mv ph mv To exit menus and return to VIEW press UP and DOWN button at the same time Allow for stabilization Press to accept second buffer calibration. 0 seconds* Display returns to VIEW Menu in 0 minutes or when is pressed * ORP: 6 mv Input: 60 mv Good Easy Cal Press <> Technical notes: The difference between the actual mv and value shown is a good indication of the condition of the electrode. Differences in excess of 50 mv may indicate a need to service the electrode. Troubleshooting ORP Display Check Sensor? Problem No sensor detected. You may enter the CALIBRATION and OPTIONS menu to program setpoint values even though Check Sensor? is displayed. Solution Connect sensor/preamplifier or proper resistance for unit of measure. KΩ for ph, 0KΩ for ORP. Out of Range Check Sensor Out of Range Use Manual CAL! Same Buffer Display stuck at ORP: 000 mv or ORP: 000 mv Standard too close to Slope! Slope too close to Standard! SETUP READ ERROR Press Any Key Electrode not installed in preamplifier. Did not use ph, 7 buffers saturated with quinhydrone. Excessive probe mv offset Same buffer used for Standard and Slope. Not allowable due to gain term of Zero. Excessive positive or negative mv input from preamplifier. ORP Standard value within 0 mv of Slope value. Probe efficiency is too small. ORP Slope value within 0 mv of Standard value. Probe efficiency is too small Memory fault occurred. Install sensor in preamp. Verify K Balco connection to transmitter (White/Green wires from preamplifier). Use ph, 7 buffers saturated with quinhydrone. Clean probe and retry EASY CAL. Use Manual calibration for Standard and Slope if mv offset exceeds 50 mv. Place probe in alternate buffer solution.. Verify preamplifier wiring. Check preamplifier with 79 preamplifier tester.. Disconnect preamp completely out of range. Check Sensor should appear. Use ORP values with a difference in reading greater than 0 mv's.. Maintain probe and retry. Use ORP values with a difference in reading greater than 0 mv's.. Maintain probe and retry Press any key to reload presets, then reprogram setpoints GF SIGNET 8750 ph/orp Transmitter Instructions page 7 of 8

8 GF SIGNET Signet Scientific Company, 0 Aerojet Avenue, El Monte, CA 9788 U.S.A. Tel. (66) Fax (66) For Worldwide Sales and Service, visit our website: Or call (in the U.S.): (800) GEORGE FISCHER GF Piping Systems /(A9/99) English Scientific Company 999 Printed in U.S.A. on Recycled Paper page 8 of 8 GF SIGNET 8750 ph/orp Transmitter Instructions