Thermo Scientific Alpha TDS 200 Manual
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Thermo Scientific Alpha TDS 200 Manual

Thermo Scientific Alpha TDS 200 Manual

1/8 din total dissolved solids controller transmitter ppm/ppt/c
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Alpha TDS 200
/
DIN Total Dissolved Solids
1
8
Controller Transmitter
ppm/ppt/ºC

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Summary of Contents for Thermo Scientific Alpha TDS 200

  • Page 1 Alpha TDS 200 DIN Total Dissolved Solids Controller Transmitter ppm/ppt/ºC...
  • Page 3 200 controller/transmitter, do not hesitate to contact the nearest Authorized Distributor. Thermo Scientific will not accept any responsibility for damage or malfunction to the controller/transmitter caused by improper use of the instrument. The information presented in this manual is subjected to change without notice as improvements are made, and does not represent a commitment on the part of Thermo Scientific.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION SAFETY INFORMATION OVERVIEW FRONT PANEL BACK PANEL WIRING PANEL-MOUNTING THE CONTROLLER MEASUREMENT MODE PASSWORD TDS CALIBRATION TEMPERATURE CALIBRATION SETUP MODE GENERAL INFORMATION SETUP MODE OVERVIEW SET POINT 1 – P1.0 SET POINT 2 – P2.0 MEASUREMENT RANGE SELECTION – P3.0 CONFIGURE TEMPERATURE SETTINGS –...

  • Page 5: Introduction

    Thank you for purchasing a ⅛ DIN TDS 200 Controller. This controller is part of a series of quality process controllers available from Thermo Scientific / Eutech Instruments. These sturdy, economical TDS controllers are designed with the features and reliability of a much more expensive instrument.

  • Page 6: Safety Information

    2 SAFETY INFORMATION This Controller/Transmitter shall be installed and operated only in the manner specified in the Instruction manual. Only skilled, trained or authorized person should carry out installation, setup and operation of the instrument. Before powering up the unit, make sure that power source it is connected to, is as specified in the top label.

  • Page 7: Overview

    3 OVERVIEW 3.1 Front Panel The front panel consists of a 4-digit LED display, 8 LED annunciators and 4 keys. Annunciators 1. REL 1 Displayed when Relay 1 is activated 2. REL 2 Displayed when Relay 2 is activated 3. MEAS Displayed in measurement mode 4.

  • Page 8: Back Panel

    3.2 Back Panel The back panel consists of three different connectors that can be used with removable terminal blocks (included): 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1. VAC live wire 2.

  • Page 9: Wiring

    3.3 Wiring Caution: Ensure electrical mains are disconnected before proceeding. 1. Connect the power supply to the three-pin terminal block • VAC live wire = 1 • VAC neutral wire = 2 • VAC protective ground wire = 3 TDS 200 controller accepts voltages from 85 to 260 VAC, 50/60 Hz or DC. 2.

  • Page 10: Panel-Mounting The Controller

    3.4 Panel-mounting the controller The supplied mounting hardware allows surface mounting to all panels and protective enclosures. Mounting cut-out size is 91 x 45 mm. To attach the mounting to the controller: Align the catch to the side of the controller, and insert threaded rods through catch. Screw the threaded-rod through the catch in a clock-wise direction.

  • Page 11: Measurement Mode

    4 MEASUREMENT MODE Press MODE to toggle between: • TDS measurement mode and • Temperature measurement mode Total Dissolved Solids Measurement Mode The controller displays the selected TDS range number, R X (X ranges from 1 to 8), for 2 seconds before displaying the TDS measurement.

  • Page 12: Password

    5 PASSWORD To access Calibration and Setup functions, you need to enter a password code. You cannot change calibration and setup parameters unless you first enter the password. The TDS 200 controller features two separate passwords: • TDS and Temperature calibration mode password = 011 •...
  • Page 13 P . 000 P . 000 P .0 1 0 P .020 P . 0 11 P .022...

  • Page 14: Tds Calibration

    6 TDS CALIBRATION IMPORTANT: When Calibration mode is entered, controller automatically goes into a “HOLD” mode where the 4-20 mA output freezes and relays are de-activated (if it was in an activated condition). Upon return to measurement mode, both 4-20mA output and relay activities resume, depending on settings.
  • Page 15 NOTE: To clear the ERR1 display and return to calibration mode, press ▲/ ▼ keys together. 50 9 50 0 ENTER d o n e ENTER Notes: You can view the calibrated TDS value from Setup program. See Setup program P5.0. Controller displays calibrated TDS point for selected range.

  • Page 16: Temperature Calibration

    7 TEMPERATURE CALIBRATION IMPORTANT: When Calibration mode is entered, controller automatically goes into a “HOLD” mode where the 4-20 mA output freezes and relays are de-activated (if it was in an activated condition). Upon return to measurement mode, both 4-20mA output and relay activities resume, depending on settings.

  • Page 17: Setup Mode

    8 SETUP MODE 8.1 General Information IMPORTANT: When Setup mode is entered, controller automatically goes into a “HOLD” mode where the 4-20 mA output freezes and relays are de-activated (if it was in an activated condition). Upon return to measurement mode, both 4-20mA output and relay activities resume, depending on settings.

  • Page 18: Setup Mode Overview

    8.2 Setup mode overview P1.0: Set Point 1 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 P2.0: Set Point 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 P3.0: Range...

  • Page 19: Set Point 1 - P1.0

    8.3 Set Point 1 – P1.0 Setup program P1.0 allows you to set parameters for relay 1. 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 1 .0 P 1 .1 P 1 .2...
  • Page 20 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 ppm and hysteresis 100.0 ppm, relay will activate when value is below 200.0 ppm, but will not de-activate till measured TDS value rises above 300.0 ppm.

  • Page 21: Set Point 2 - P2.0

    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) P 2 .0 P 2 .1 P 2 .2...
  • Page 22 P2.2: 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. Key in password “022”...

  • Page 23: Measurement Range Selection - P3.0

    8.5 Measurement Range Selection – P3.0 Setup program P3.0 is for selecting the range of measurement. P3.1: select measurement range and corresponding cell constant P 3 . 0 P 3 . 1 R N GE 2000 K 10 . Press ▲and ▼keys together (ESCAPE) at anytime, to leave the Setup mode and return to Measurement mode.

  • Page 24: Configure Temperature Settings - P4.0

    8.6 Configure Temperature Settings – P4.0 Setup program P4.0 is for selecting ATC or MTC, set temperature coefficient values, and select normalization temperature P4.1: ATC or MTC mode (default : ATC mode) P4.2: set temperature coefficient (default : 2.10 %) P4.3: set Normalization temperature (default : 25.0 P 4 .1 P 4 .2...

  • Page 25: Viewing Tds Calibration Data - P5.0

    8.7 Viewing TDS Calibration Data – P5.0 Program 5 is a “view only” option, which displays the value at which calibration was performed. P5.1: view Calibrated TDS value (if no calibration performed for this range, controller displays ‘- - - - ‘. These parameters will change each time you recalibrate the controller.

  • Page 26: Viewing Tds / Temperature Electrode Data - P6.0

    8.8 Viewing TDS / Temperature Electrode Data – P6.0 Program 6 has two “view only” options that let you check the electrode parameters for diagnostic purposes. P6.1: view revised cell correcting factor value of electrode P6.2: view temperature probe offset (ATC on only) These parameters will change each time you recalibrate the controller.

  • Page 27: Set Tds Factor - P7.0

    8.9 Set TDS Factor – P7.0 The alpha TDS 200 Controller allows the TDS factor to be selected, depending on the application. P .0 P7.1: Viewing Temperature electrode data Key in the password “022” as per procedure in Section 5.
  • Page 28 Press ▲and ▼keys together (ESCAPE) at anytime, to leave the Setup mode and return to Measurement mode. P8.0: Controller reset Key in the password “022” as per procedure in Section 5. Press ▲key until screen displays P8.0 and RST. Press ENTER. Screen will scroll P8.1, then ‘No’.

  • Page 29: Relays

    9 RELAYS The TDS 200 features two SPDT non-powered relays; rated for 6A at 110 VAC, 250 VAC maximum. When your process exceeds the set parameters of a relay set point, the REL 1 or REL 2 indicator lights up. To set parameters for relay one and relay two, see Setup programs P1.0 and P2.0.

  • Page 30: Specifications

    11 SPECIFICATIONS TDS Range Resolution Cell Constant 0.00 – 10.00 ppm 0.01 ppm 0.0 – 100.0 ppm 0.1 ppm 0.0 – 100.0 ppm 0.1 ppm 0 – 1000 ppm 1 ppm 0.00 – 5.00 ppt 0.01 ppt 0.00 – 10.00 ppt 0.01 ppt 0.0 –...

  • Page 31: Accessories

    12 ACCESSORIES Product Description Thermo Eutech Scientific Instruments Order Code Order Code TDS cell, Epoxy body, Graphite sensor, w/3-wire ECCONSEN89X 35820-21 Pt100, k = 0.1 TDS cell, Epoxy body, Graphite sensor, w/3-wire ECCONSEN88X 35820-20 Pt100, k = 1.0 Note: Above TDS electrodes withstand up to 3 bar pressure. These cells have integral 1.0 m, 5-wire double-shielded open-ended cable.
  • Page 32 Appendix 1: Simple Explanation on the Function of Hysteresis S P 1 S e t t o L O S P 2 S e t t o H I R E L A Y O N The controller relay activates when the set-point is reached.
  • Page 33 Appendix 3: External Relays The relays on the TDS 200 series controller are rated for 6 amps at 110 VAC and can be wired directly to your final control element (provided its power requirements do not exceed this). However, to preserve the life of your controller, or if higher power is needed, it is recommended that you use the controller relay to drive an external relay.

  • Page 34: General Information

    13 GENERAL INFORMATION Warranty Thermo Scientific warrants this product to be free from significant deviations in material and workmanship for a period of one year from the date of purchase. If repair is necessary and has not been the result of abuse or misuse within the warranty period, please return by freight pre-paid and amendment will be made without any charge.
  • Page 36 Water Analysis Instruments North America Toll Free: 1-800-225-1480 Tel: 1-978-232-6000 info.water@thermo.com Europe Tel: (31) 033-2463887 info.water.uk@thermo.com Asia Pacific Tel: 65-6778-6876 wai.asia@thermofisher.com www.thermo.com/processwater © 2012 Thermo Fisher Scientific Inc. All rights reserved. Thermo Fisher Scientific Inc. 68X276105 Rev 2...

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