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GPG C270 Operation Manual

Conductivity monitor
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C270
CONDUCTIVITY MONITOR
OPERATION GUIDE

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Summary of Contents for GPG C270

  • Page 1 C270 CONDUCTIVITY MONITOR OPERATION GUIDE...

  • Page 2: Table Of Contents

    CONTENTS INTRODUCTION ..… FEATURES AND TECHNICAL SPECIFICATIONS Features.. Technical Specifications ..INSTALLATION Dimension Panel Cut-out ..User Interface and Description Connection..SETTING AND OPERATION.. Switch Measuring and Setting Mode ....Menu Structure .. . Parameter Setting and Operation. ..

  • Page 3: Introduction

    C270 Intelligent On-line Conductivity Monitor 1. INTRODUCTION The C270 is a microprocessor controlled conductivity measurement instrument. The unit utilizes a multifunction LCD to display readings and provide feedback to the user. It is available with different option to provide fully configurable control, alarm and feedback with up to two relays and 4-20mA current output sources.

  • Page 4: Dimension

    load) (8) Ambient Operating temperature：-10~+55℃ (9) Humidity：≤95% (10) Power supply：AC110 ~220V，50~60Hz 3. INSTALLATION The panel-mounting version is designed to be flush mounted and sealed in a square cut-out in a panel, and is held in place with the two screw clamps provided.

  • Page 5: Panel Cut-Out

    3.2 Panel Cut-out Figure 3: cut-out diagram ¨The panel cut-out for mounting the unit should be 92 mm x 92 mm (+1.0– 0.0). ¨Two screw clamps are supplied and are fitted from the back of the instrument 3.3 User Interface and Description Figure 4: front panel diagram Front panel description: LCD digital Monitor，displayed the measured values，and can also...
  • Page 6 be displayed prompt function, parameter values and error codes in interactive. TDS indicator light. When the light is lit in the measuring state， means the measured value is TDS; When the light is lit in the setting state, means the input parameter is TDS. (3) H alarm light，Under the conditions of setting high alarm, when the measured pH value of the solution is higher than the value of High alarm, the H alarm light will be turned on and the high relay (N/O)

  • Page 7: Connection

    MENU MENU (10) ，Press the key to enter or exit the setting state. DOWN DOWN (11) ，In the setting state, using the key the user can DOWN cycle through the next menu. To adjust a value, the key is used to select a digit (12) ，In setting state, using the key the user can cycle...

  • Page 8: Setting And Operation

    (N) Power supply terminal: Connect the power supply phase CAUTION ! : ★ The specified performance of the C270 is entirely dependent on correct installation. For this reason, the installer should thoroughly read the instructions before attempting to make any electrical connections to the unit.

  • Page 9: Switch Measuring And Setting Mode

    4.1 Switch Measuring and Setting Mode Instrument has two states: measuring state and setting state. After powering up the device enters the measuring state automatically. In the MENU measuring state, press to enter the setting state. In the setting MENU state, press to return to the measuring state.
  • Page 10 Set current output start value Set current output end value (The input for current output is conductivity) (The input for current output is temperature) Set conductivity start value for current output Set conductivity end value for current output Set temperature start value for current output Set temperature end value for current output Manual set current output value (Manual set high relay open)
  • Page 11 (Display conductivity value) (Display resistivity value) (Display temperature value) (Display TDS value) Sensor manual calibration (put the sensor into standard buffer) Calibrate current output Select cell constant k=1.00 Select cell constant k=0.10 Select cell constant k=0.01 Select cell constant k=10.0 Set TDS Coefficient (0.4-1.0) Restore factory setting Auto Return...

  • Page 12: Parameter Setting And Operation

    4.3 Parameter Setting and Operation 4.3.1 Set Alarm The C270 monitor has two alarm outputs designated high alarm(H) and low alarm(L). The alarm value and alarm hysteresis can be set within the currently selected measuring range. table1 alarm value setting program content...

  • Page 13: Calibration

    Figure 6 alarm with hysterisis 4.3.2 Calibration Calibration Intervals The C270 Monitor and Sensor combination once calibrated will require calibration checking/recalibration at 3-6 monthly intervals, however this does depend on the application. The calibration of the instrument can be effected by seasonal variations in the measured effluent, however only knowledge of the application can determine the re-calibration interval required.
  • Page 14 4.3.2.2 C0、 、 、 、 C100—temperature calibration C270 has temperature measurement function, for the automatic temperature compensation, and also can be displayed on the monitor. Temperature calibration requires a high and a low constant temperature environment.

  • Page 15: Temperature Compensation

    C100 Auto calibrate temperature=100℃ Use boiling water (100℃) to calibrate 4.3.3 Temperature Compensation 4.3.3.1 CC—auto/manual temperature compensation switch C270 has Auto and manual temperature compensation function. The user can select between two modes of compensation by the CC in the ENTER menu.

  • Page 16: Set Current Output

    Manual temperature setting Range: 4.3.4 Set Current Output C270 has one 4~20mA current output. The user can select the input source: conductivity or temperature. And the current output can be set work over the whole range of the input source.
  • Page 17 display value and 4 mA corresponding to the full scale value. (curve3). 4.3.4.1 FSIS、 、 、 、 FSIE—set current output start and end value ENTER Select FSIS in the menu, press into it and display the original DOWN current output start value, use to modify it, then ENTER press...

  • Page 18: Measurement Mode

    0~100℃ FICE Temperature end value 0~100℃ 4.3.5 SHSP—Measurement Mode C270 has conductivity, resistivity, TDS and temperature four modes of measurement and display functions, it can be selected in the SHSP program. ENTER Select SHSP in the menu, Press into it and display SH 0 or SH 1 or SH 2 or SH 3.

  • Page 19: Select Cell Constant

    Temp. indicator will light. After a few seconds automatically return to the original measurement mode. 4.3.6 CEL—Select cell constant C270 can choose four models of sensor according to the measurement range, it can be selected in the CEL program. ENTER Select CEL in the menu, Press into it and display 1.00 or 0.10...

  • Page 20: Error Codes

    5. ERROR CODES When the instrument detects an error condition, an error code will be displayed. All the error codes are described below. Table9 error codes Code Content Solve methods Measurement value Check whether the choice of cell constant is Er01 out of range suitable and replace the correct one...
  • Page 21 6.2 Sensor Parameters Table10 sensor parameters con0.01 con0.1 con1.0 con10 Parameter Resistivity Conductivity Conductivity Conductivity Medium Pure Water Sewage Water Sewage Water Sewage Water cell constant 0.01 0~18M or Range 0~999.9us/cm 0~9999 us/cm 0~20ms/cm 0~19.99us/cm Temp. range 0~80℃ 0~80℃ 0~80℃ 0~80℃...
  • Page 22 6.4 Sensor Dimension (Unit: mm) Figure 7 sensor dimension for k=0.01/0.1/1.0 (sensor dimension for k=10 please reference the pH sensor dimension) 6.5 Maintenance Attaching sensors are precision devices, can not disassemble in order to avoid changing the cell constant, causing measurement errors.

  • Page 23: Warranty

    As we have no control over the conditions in which their sensors are used, no further guarantee is given. STANDARD CONFIGURATION C270 monitor Mounting fixing of monitor Operation guide Inspection report 9 OPTIONAL CONFIGURATION Conductivity sensor con0.1/con1.0/con10 (cable length 5 meters)
  • Page 24 GOLDPOINT COMPANY LTD.,(TAIWAN) AUTHORIZED ADD: 4F-1, NO.177, Sec.1, Heping East Road, Taipei TEL: 00886-2-23584907/08/09/10 FAX: 00886-2-23584959 GOLDPOINT (SHANGHAI) COMPANY LTD., MANUFACTURING ADD:B601,NO.555,Fahuazhen Road,shanghai TEL: 0086-021-62826822, 62820823 FAX: 0086-021-62826823 Web：www.igpg.com.cn / www.goldpointgroup.com Email: shanghai@igpg.com.cn...

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