User manual EUTECH INSTRUMENTS ALPHA CON 200 CONDUCTIVITY CONTROLLERTRANSMITTER

[. . . ] Instruction Manual lpha CON 200 1/8 DIN Conductivity Controller with Temperature display and Transmitter Technology Made Easy . . . 68X276103 rev 0 04/2002 PREFACE This manual serves to explain the use of the lpha CON 200 controller/transmitter. This manual functions in two ways: first, as a stepby-step guide to help you operate the meter; second, it serves as a handy reference guide. This manual is written to cover as many anticipated applications of the lpha CON 200 controller/transmitter as possible. If there are doubts in the use of the lpha CON 200 controller/transmitter, do not hesitate to contact the nearest Eutech Instruments Authorized Distributor. [. . . ] This controller features selectable Automatic Temperature Compensation (ATC) or Manual Temperature Compensation (MTC). Important: If there is no temperature element wired to controller and ATC is selected on, screen will flash in conductivity mode, and an error message (OR) is displayed in temperature mode. MTC: MTC lets you select a specific value at which temperature will be compensated. P1. 1: select relay 1 set point value P1. 2: select relay 1 as low or high set point P1. 3: set relay 1 hysteresis value (dead band) P . 0 1 S1 P P . 1 1 S1 P 200 P . 2 1 P. 13 S1 P H St Y LOW 0 10 HI H G Press and keys together (ESCAPE) at anytime, to leave Setup mode and return to Measurement mode. P1. 1: Select relay set point value Set the Conductivity value that will activate Relay 1. If measured value overshoots or undershoots Set Point value, Relay 1 will be activated and corresponding LED on front panel will light. Press ENTER to confirm and continue to step three of P1. 2, or press and keys together to return to P1. 0. Press and keys together again, to return to the Conductivity measurement mode. P1. 2: Set relay as high or low set point Select low set point to activate Relay when measured value undershoots Set point; select high set point to activate Relay when measured value overshoots Set point. Using both SP1 and SP2, you can select lo/lo, lo/hi, hi/lo or hi/hi set points. Press ENTER to confirm and continue to step 3 of P1. 3, or press and keys together to return to P1. 0. Press and keys together again, to return to Conductivity measurement mode. 15 P1. 3: Set Hysteresis value Hysteresis prevents rapid contact switching if measured value is fluctuating near the set point. Once activated, relay will not de-activate until measured value reaches set point plus hysteresis value. Example: Low set point is 200. 0 µS/cm and hysteresis 100. 0 µS/cm, relay will activate when value is below 200. 0 µS/cm, but will not de-activate till measured Conductivity value rises above 300. 0 µS/cm. The hysteresis window can be set to any value within the range shown below: 1. Press and keys together again, to return to Conductivity measurement mode. 16 8. 4 Set Point 2 ­ P2. 0 Setup program P2. 0 allows you to set parameters for relay 2. P2. 1: select relay 2 set point value P2. 2: select relay 2 as low or high set point P2. 3: set relay 2 hysteresis value (dead band) P2 . 0 S2 P P . 1 2 S2 P 00 18 P . 2 2 P23 . S2 P H St Y LOW 100 HI H G Press and keys together (ESCAPE) at anytime, to leave Setup mode and return to Measurement mode. P2. 1: Select relay set point value Set the Conductivity value that will activate Relay 2. If measured value overshoots or undershoots Set Point value, Relay 2 will be activated and corresponding LED on front panel will light. Press ENTER to confirm and continue to step three of P2. 2, or press and keys together to return to P2. 0. [. . . ] 10 TRANSMITTER FUNCTION If remote data logging is required, a 4-20 mA current loop can be connected. The current will be proportional to the Conductivity value displayed on the panel and according to the measurement range selected. Conductivity Range 0. 00 ­ 20. 00 µS/cm 0. 0 ­ 200. 0 µS/cm 0. 0 ­ 200. 0 µS/cm 0 ­ 2000 µS/cm 0. 00 ­ 10. 00 mS/cm 0. 00 ­ 20. 00 mS/cm 0. 0 ­ 200. 0 mS/cm 0. 0 ­ 200. 0 mS/cm Range No. , R 1 2 3 4 5 6 7 8 Cell Constant 0. 1 0. 1 1 1 1 1 1 10 4 mA current 0. 00 µS/cm 0. 0 µS/cm 0. 0 µS/cm 0 µS/cm 0. 00 mS/cm 0. 00 mS/cm 0. 0 mS/cm 0. 0 mS/cm 20 mA current 20. 00 µS/cm 200. 0 µS/cm 200. 0 µS/cm 2000 µS/cm 10. 0 mS/cm 20. 0 mS/cm 200. 0 mS/cm 200. 0 mS/cm The 4-20 mA current loop can drive a load resistance of no more than 200 . 24 11 SPECIFICATIONS Conductivity Range 0. 00 ­ 20. 00 µS/cm 0. 0 ­ 200. 0 µS/cm 0. 0 ­ 200. 0 µS/cm 0 ­ 2000 µS/cm 0. 00 ­ 10. 00 mS/cm 0. 00 ­ 20. 00 mS/cm 0. 0 ­ 200. 0 mS/cm 0. 0 ­ 200. 0 mS/cm Relative Accuracy Temperature Resolution/Accuracy Sensor Temperature Compensation Temperature Coefficient Set-point And Controller Functions Function Switching Conductivity Hysteresis Contact Outputs, Controller Switching Voltage / Current / Power Electrical Data And Connections Power Requirements Signal Output / Load Connection Terminals Main Fuse Resolution Cell Constant 0. 01 µS/cm 0. 1 0. 1 µS/cm 0. 1 0. 1 µS/cm 1 1 µS/cm 1 0. 01 mS/cm 1 0. 01 mS/cm 1 0. 1 mS/cm 1 0. 1 mS/cm 10 ± 1 % of full scale -10 to 110 oC 0. 1 / ± 0. 5 oC Pt 100 (3-wire) Automatic / Manual (0 to 50 °C) 0. 0 to 5. 0 % Limit Control 5% of full scale 2 SPDT relays Max 250 VAC / Max 3A / Max 600 VA 85 to 260 VAC, 50/60 Hz or DC 4-20 mA galvanically isolated / 200 4 Detachable connectors (3-pin; 7-pin & 9-pin terminal blocks) 250 mA, Anti-surge (BUSSMAN S504+250mA) Environmental Conditions Ambient Temp. Humidity 10 to 95 % (non-condensing) Mechanical Specifications Dimensions (Panel Housing ­ W x H x D) 96 x 48 x 150 mm Weight 300g (350g boxed) 25 12 ACCESSORIES Product Description Conductivity cell, Epoxy body, Graphite sensor, w/3-wire Pt100, k = 0. 1 Conductivity cell, Epoxy body, Graphite sensor, w/3-wire Pt100, k = 1. 0 Code no. ECCONSEN89X ECCONSEN88X Note: Above Conductivity electrodes withstand up to 3 bar pressure. [. . . ]