Instruction manual
TABLE OF CONTENTS 
1  INTRODUCTION....................................................................................................................................... 1 
1.1  AT THE VERY BEGINNING...................................................................................................................... 1 
1.2  INTENDED USE ...................................................................................................................................... 1 
1.3  SAFETY INTSRUCTIONS ......................................................................................................................... 2 
1.4  PUTTING OUT OF SERVICE / CORRECT DISPOSAL OF THE UNIT ............................................................... 2 
2  PRODUCT DESCRIPTION....................................................................................................................... 3 
2.1  DESCRIPTION OF UNIT ........................................................................................................................... 3 
2.2  MEASUREMENT AND CONTROL SYSTEM................................................................................................ 4 
2.3  UNIT OVERVIEW ................................................................................................................................... 5 
2.3.1  Display Overview............................................................................................................................ 6 
2.3.2  Key functions................................................................................................................................... 6 
2.3.3  LED indicators................................................................................................................................ 7 
2.3.4  Security codes.................................................................................................................................. 7 
2.3.5  Menu overview ................................................................................................................................ 8 
3  ASSEMBLY AND INSTALLATION........................................................................................................ 9 
3.1  MOUNTING THE UNIT ............................................................................................................................ 9 
3.2  CONNECTION DIAGRAM...................................................................................................................... 10 
4  NORMAL OPERATION.......................................................................................................................... 12 
4.1  MEASUREMENT MODE ........................................................................................................................ 12 
5  CALIBRATION MODE........................................................................................................................... 13 
5.1  ENTERING CALIBRATION MODE .......................................................................................................... 13 
5.2  DISSOLVED OXYGEN CALIBRATION IN MG/L OR PPM OF OXYGEN........................................................ 14 
5.3  DISSOLVED OXYGEN CALIBRATION IN % SATURATION OF OXYGEN.................................................... 15 
5.4  VIEW ACTUAL PROBE CONDITION ....................................................................................................... 16 
6  SETUP MODE........................................................................................................................................... 17 
6.1  ENTER SETUP MODE............................................................................................................................ 17 
6.2  OFFSET, SALINITY AND PRESSURE COMPENSATION (OFS) SUB-FUNCTION ......................................... 18 
6.3  SETTING TEMPERATURE (SET °C°F) SUB-FUNCTION ........................................................................... 19 
6.4  CONTROL RELAY A / RELAY B (SP1/SP2) SUB-FUNCTION ................................................................. 20 
6.5  CONTROLLER (CNTR) SUB-FUNCTION ............................................................................................... 22 
6.6  CURRENT OUTPUT 1 SUB-FUNCTION ................................................................................................... 25 
6.7  CURRENT OUTPUT 2 SUB-FUNCTION ................................................................................................... 26 
6.8  WASH RELAY (WASH) SUB-FUNCTION .............................................................................................. 27 
6.9  CONFIGURATION (CNFG) SUB-FUNCTION .......................................................................................... 28 
6.10  CALIBRATION (CAL) SUB-FUNCTION.................................................................................................. 29 
7  RELAY MODES ....................................................................................................................................... 30 
7.1  VIEW RELAY SET POINTS..................................................................................................................... 30 
7.2  MANUAL RELAY MODE ....................................................................................................................... 31 
8  TECHNICAL SPECIFICATIONS.......................................................................................................... 32 
8.1  MEASUREMENT AND COMPENSATION................................................................................................. 32 
8.2  SET-POINT AND CONTROL FUNCTION – RELAY 1 & RELAY 2 .............................................................. 32 
8.3  WASH FUNCTION – WASH RELAY ...................................................................................................... 33 
8.4  ALARM FUNCTION – ALARM RELAY .................................................................................................. 33 
8.5  TRANSMITTER FUNCTION ................................................................................................................... 33 
8.6  VOLTAGE OUTPUT & HOLD FUNCTION SWITCH ................................................................................. 34 
8.7  DISPLAY ............................................................................................................................................. 34 
8.8  POWER SUPPLY................................................................................................................................... 34 
8.9  ELECTRICAL DATA AND CONNECTIONS .............................................................................................. 34 
8.10  MECHANICAL SPECIFICATIONS ........................................................................................................... 34 










