Operating Instructions
α
lpha-CON1000
68X216802
3
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
o
C) 28
12.4
Appendix 4 – Conductivity of Various Aqueous Solutions at 25
o
C ........ 30
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
o
C. Separate pure water
compensation curve stored in memory. Reference temperature at 25
o
C.
•
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
