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Online TDS Controller with 2 set limits and 4-20mA output

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SKU: 160-TDS
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Description

  • Auto/Manual temperature compensation selectable
  • Cell Factor selectable for both 1.0 and 0.1
  • Digital calibration for TDS
  • Auto Temp Compensation using PT100 sensor
  • Dual set limit with separate relay outputs
  • Settable hysteresis for both set limits
  • Bright Red LED display with separate display for set limit-1
  • Aesthetically designed front panel with membrane switches and ABS cabinet

Frequently Asked Questions — Model 160-TDS

What is the 160-TDS controller?

The 160-TDS is an online dual-limit TDS controller by Countronics. Measures TDS in ppm, two independent relay outputs, 4-20mA output for SCADA/PLC, and auto temperature compensation via PT100.

What is TDS and why measure it?

TDS (Total Dissolved Solids) is the concentration of dissolved substances in water in ppm. Critical for RO plant performance, drinking water quality, boiler feed water, cooling towers, and food and beverage production.

What is the difference between 160-TDS and 160-COND?

Both measure conductivity but display and control in different units. 160-TDS shows and controls in ppm. 160-COND shows and controls in μS/mS. Choose based on which unit your application specifies.

Does 160-TDS have a 4-20mA output?

Yes. 4-20mA output proportional to TDS connects to PLCs, SCADA, or data loggers for remote monitoring and integration with centralised process control.

What industries use the 160-TDS?

RO plants, drinking water treatment, boiler feed water, cooling towers, food and beverage, and pharmaceutical water systems — any process requiring automatic TDS-based control.

Who manufactures the 160-TDS?

Manufactured by Countronics, ISO 9001:2015 certified, established 1978, Ghaziabad. Contact: +91-9810536887.

Additional information

Your custom text or HTML.

Display

0.56” Red LED 7 segment Display for Conductivity/TDS
0.56” Red LED 7 segment Display for Set-Limit-1

Range

0-5000ppm

Resolution

1ppm

Temp. Comp

Uses PT100, precision temperature sensor (External)
The Compensation is internally set at 2% per ˚C

Manual Temp. Comp

Settable from front panel from 0-100.0˚C

TDS Calibration

Digital calibration by factor multiplication from 0.75-1.25

Recorder Output

Isolated 4-20mA => 0-2000 (for whatever unit and resolution selected
(Maximum termination 250Ω)

Control Output

Two set of NO-P-NC, 5 Amps potential free Relay Contacts
Relay 1 ON, for Cond/TDS < Set Limit1 – Hysterises1, Relay 1 OFF, for Cond/TDS > Set Limit1
Relay 2 OFF, for Cond/TDS < Set Limit2,Relay 2 ON, for Cond/TDS > Set Limit2 + Hysterises2

Accuracy

0.5% ± 1 Digit

Supply

220V AC ±10% @ 50Hz

Enclosure

Plastic (ABS). Size -96x96x110mmm

Weight

900 grams

Additional Information

Display:
0.56” Red LED 7 segment Display for Conductivity/TDS 0.56” Red LED 7 segment Display for Set-Limit-1
Range:
0-5000ppm
Resolution:
1ppm
Temp. Comp:
Uses PT100, precision temperature sensor (External) The Compensation is internally set at 2% per ˚C
Manual Temp. Comp:
Settable from front panel from 0-100.0˚C
TDS Calibration:
Digital calibration by factor multiplication from 0.75-1.25
Recorder Output:
Isolated 4-20mA => 0-2000 (for whatever unit and resolution selected (Maximum termination 250Ω)
Control Output:
Two set of NO-P-NC, 5 Amps potential free Relay Contacts Relay 1 ON, for Cond/TDS < Set Limit1 – Hysterises1, Relay 1 OFF, for Cond/TDS > Set Limit1 Relay 2 OFF, for Cond/TDS < Set Limit2,Relay 2 ON, for Cond/TDS > Set Limit2 + Hysterises2
Accuracy:
0.5% ± 1 Digit
Supply:
220V AC ±10% @ 50Hz
Enclosure:
Plastic (ABS). Size -96x96x110mmm
Weight:
900 grams