Introduction; Description Of Unit - EUTECH INSTRUMENTS ALPHA CON 1000 CONDUCTIVITY CONTROLLERTRANSMITTER Instruction Manual

Operating Instructions
7.4 Controller (Cntr) sub-function............................................................... 19
7.5 Measurement Range sub-function ......................................................... 20
7.6 Current Output (rng) sub-function......................................................... 21
7.7 Configuration (ConF) sub-function ....................................................... 22
7.8 Calibration (CAL) sub-function ............................................................ 23
8 Auto/Manual Mode .......................................................................................... 24
8.1 Auto mode (mode after switch-on) ........................................................ 24
8.2 Manual mode........................................................................................ 24
9 Technical Specifications............................................................................... 25
10 Accessories Assembly Accessories.................................................................... 26
11 General Information......................................................................................... 26
11.1 Warranty .............................................................................................. 26
11.2 Packaging............................................................................................. 26
11.3 Return of Goods ................................................................................... 26
11.4 Guidelines for Returning Unit for Repair............................................... 26
12 Appendices............................................................................................... 27
12.1 Appendix 1 - Jumper Positions ............................................................. 27
12.2 Appendix 2 - Measurement Ranges available in the Controller.............. 28
12.3 Appendix 3 - Conductivity at Related Temperature Coefficients (25
12.4 Appendix 4 - Conductivity of Various Aqueous Solutions at 25
12.5 Appendix 5 - Simple Explanation on the Function of Hysteresis ............ 31
12.6 Appendix 6 - General Instructions Concerning Controller Setting ......... 32

1 Introduction

1.1

Description of Unit

Thank you for purchasing Eutech's ¼ DIN alpha-1000 series Conductivity process controllers. This
unit is used for measuring the Conductivity of a solution, either in micro-Siemens or milli-Siemens,
one at a time, and the operational mode is switchable from the menu. You can use this unit to
measure Conductivity with limit control. This controller has many user-friendly and safety features
which include:
Menu-driven program that simplifies set-up
Ten ranges of Conductivity measurements-software selectable (Appendix 2).
Built-in memory backup to ensure that calibration data and other information are not erased
if power supply fails
Automatic temperature compensation (ATC) with Pt100 or Pt 1000
Manual temperature compensation with independent setting for calibration and process
temperature
Temperature coefficient variable between 0.00 to 10.00 % per
compensation curve stored in memory. Reference temperature at 25
0 to 1999 second time delay adjustment on all relays - minimise false alarms
Separately adjustable high and low set point hysteresis (dead bands) prevent chattering of
relays around the set points
68X216802
lpha-CON1000
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