Salinity Controller Model R36SAL

  • Salinity Controller
  • Direct readout in Salinity units or conductivity
  • 2 Temperature Channels
  • Analog ouputs 4-20 ma
  • Relay alarm outputs
  • Free Windows software
  • Communication protocol on request
  • On/Off or proportional Control
  • Units can be daisy-chained on the RS485
  • Password protection of settings
  • Stores up to 12000 values + temp, date and time (internal memory)
  • reporting built in
  • Alarm can interrupt the controller in the event of a sensor probe failure

four pole conductivity probeThe R36SAL is sophisticated electrochemistry controller having two independent input channels for temperature and two inputs channels for electrochemisty probes. This version is configured for salintiy measurement with a single input for a 4 pole wide range conductivity sensor with built in resistance thermometer
There are four solid state relays programmable for high/low level control, wash programs or alarm functions.
A special alarm timer will interrupt the process control in case of an electrode failure.
The system includes a comprehensive set of calibration routines for each parameter including multi point calibration conductivity/salinity.
The controller can also accomadate a range of conductivity probes to match the application.
Use a 1 cm-1 electrode to control from 0.01 μS/cm to 200 mS/cm.
Use a 0.1 cm-1 electrode to control from 0.001 μS/cm to 20 mS/cm.
Use a 10 cm-1 electrode to control from 0.1 μS/cm to 2000 mS/cm.
Model R36SAL salinity controller includes a 4 pole conductivity probes ( shown to the left) which ideal for wide range conductivity measurements and ideal for high salinity monitoring and control
Selectable reference temperature: 20° or 25°C.
Cell constant determination is automatic with any of three preprogrammed or user specified standards.

The built in RS485 interface which can be used to daisy chain instruments together and to contect to a PC or login controller. The DIS software feature data aquistion, tabulation and file management compatible with Microsoft Windows. The system can used without the software using a straight data link such as hyperlink or with your own software (command set available on request)


Modes Range Resolution
Conductivity 0 - 2000 mS/cm 0.001 uS/cm
Temperature - 30 to + 130 °C 0.1 °C
pH or mV or conductivity or DO 2 channels 2 x BNC
Temperature 2 channel 2 x BNC
Conductivity 0.5% +/- 1 digit fs or range
Salinity (oxygen) 0-40ppt NaCl auto or manual
Temperature 1 point
Conductivity 1 - 3 points
Cell Constant 0.05 - 15 /cm 
Temp Coefficient Standard Curve or individual curve
Ref Temp 20 or 25 °C
General Specifications
Data Logging 12000 values + time and data, automatic or manual
Logging interval 1 - 9999 seconds
Unit ID yes
Password yes
Display Back Lit LCD 128 x 64 pixels
Relay Outputs 4 solid state, 12 - 250 VAC 1mA min. 1A max.
Recorder output 4-20mA programmable
RS485 4 wire output 300 .. 19200 baud, bi-directional
Power 110 or 230 Volts AC
Dimensions 28 x 17 x 6 cm
Weight 1.3 Kg

Ordering Information

ModelDescription Price order online
R36SAL Salinity controller complete with, software, 4 pole conductivity probe with 3/4" MNPT and 20 ft cable, calibration certificate and user manual $1845.00