B&C CL 7685 Operator's Manual

Manual is about: residual chlorine chlorine dioxide d. ozone microprocessor controller

Summary of CL 7685

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    U n i e n i s o 9 0 0 1 : 2 0 0 0 c e r t . N . 9 1 1 5 b c e l b&c electronics srl – via per villanova 3 – 20040 carnate (mi) – italy p.Iva 00729030965 tel +39 039 63 1721 – fax +39 039 607 6099 [email protected] - www.Bc-electronics.It operator's manual cl 7685 residual chlorine chlorine dioxid...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 2 – index 1 general .........................................................................................................................................4 1.1 functional specifications .....................................................

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 3 – 7.24 holding time ...........................................................................................................................39 7.25 new access number .......................................................................

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 4 – 1 general this series of controllers with built-in microprocessor forms an advanced system of measurement and regulation of ph - orp - conductivity - dissolved oxygen - chlorine in industrial processes. Compiled into these instruments ...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 5 – 1.1 functional specifications input the instrument accepts input from potentiostatic sensor for active chlorine, chlorine dioxide and d.Ozone measuring. A second input is provided for 3 wires pt100 temperature sensors. Temperature comp...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 6 – alarm relay the unit contains a spst relay designated as an alarm relay. This relay may be used to warn of various conditions that might indicate operational problems. The relay will activate on either high or low concentration conditi...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 7 – - simulated operation (sim.): this mode of operation would normally only be used for control system troubleshooting. The unit does not provide the measuring values, but will allows the relays to be manually activated and the analog out...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 8 – options 091.3711 dual isolated and programmable output the operator may select an output for temperature. 091.404 24 vac power supply. 091.701 rs232 isolated output the output sends the data (ppm,°c) to the serial port of the computer....

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 13 – 12) general specifications alphanumeric display: 1 line x 16 characters response time to 98% of value changing, with tc=2% / °c - t=20 °c - s=100% : operating temperature: 0/50 °c humidity: 95% without condensate power supply: 110/220...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 14 – 3 installation 3.1 physical installation the controller may be installed close to the areas being monitored, or it may be located some distance away in a control area. The enclosure is designed for panel-mounting. It should be mounted...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 15 – connecting the sensor - sensor cabling is a critical part of the whole system. - use original cable supplied with the sensor - avoid interruption on the cable - connect the white wire (counter electrode) to the terminal 17 marked el -...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 16 – connecting a recorder a current output for a remote recorder or p.I.D. Regulators is available on terminals 14-16. Connect the recorder high (+) to terminal 14 connect the recorder low (-) to terminal 16 series connection is required ...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 17 – 3.3 operating the system pre-operation check the system's controls and indicators are all located on the front panel. (see fig. 1). The meter has a lcd display 1 indicating that unit is on. The cards of the controllers are adjusted at...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 18 – 4 keyboard key symbol function ù [mode] - allows the operator to go to the next display - allows to go back to the main display. The eventual new parameter values will not be memorized § [cal] - allows the access of calibration sequen...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 22 – 6 calibration sequences the following procedures will be available whenever the instrument has the keyboard unlocked. To unlock the keyboard follow the procedures mentioned in chapter "configuration". The following procedures allows t...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 27 – 6.4 set-point a/b calibration the following procedure are suitable for both set-point a and b. For each set-point it is possible: - to insert the set-point value - to insert parameters of on/off - pfm - pwm function 1. [mode] to go to...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 40 – 8 calibration 8.1 electrical calibration should a problem arise with the residual monitor, a sensor simulator can be used to determine if the electronic unit is working correctly. Reset the unit to the laboratory calibration (press ke...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 41 – 9 preventive maintenance controller quality components are used to give the controller a high reliability. The frequency of such maintenance depends on the nature of each particular application. As in any electronic equipment, the mec...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 42 – front panel 1. Display 2. Mode-display key 3. Calibration key 4. Increase key 5. Decrease key 6. Enter key fig. 1.

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 43 – rear panel connections 1. 2 110 v power supply 1. 3 220 v power supply 4. Ground (power) 5. 6 a relay n.O. Contacts 6. 7 a relay n.C. Contacts 8. 9 b relay n.O. Contacts 9. 10 b relay n.C. Contacts 11. 12 c relay n.O. (alarm) 12. 13 d...

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 44 – dimensions and drill plan (measures in mm) fig. 3.

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    B&c electronics cl 7685 operator’s manual - rev. C - 05/05 - 45 – n o t e s.