Name: Conductivity / TDS Controller EC101
Brand: Senvolt
SKU: EC101

Conductivity / TDS Controller EC101

Model EC101

Online conductivity, resistivity and TDS controller: 0–200 mS/cm, 0–20 MΩ·cm, 0–9999 ppm. 3 relays, 4–20 mA and RS485 Modbus. For RO, DM and cooling water.

Conductivity, resistivity and TDS in one controller

0–200 mS/cm and 0–9999 ppm ranges

3 relays for reject, bleed-off and alarms

4–20 mA + RS485 Modbus RTU

IP65, 96 × 96 mm

EC101 specifications

Measuring range	0–200 mS/cm; 0–20.00 MΩ·cm; 0–9999 ppm
Accuracy	±0.01 S/cm, ±1 ppm
Resolution	0.01 S/cm, 1 ppm
Relay alarm output	3 relays, high/low point trigger
Signal output	4–20 mA / RS485 Modbus RTU
Power supply	100–240 VAC or 24 VDC, 50/60 Hz
Dimensions	96 × 96 × 128 mm (H × W × D)
Panel cut-out	92 × 92 mm (H × W)
Protection	IP65
Calibration	2-point calibration
Installation	Wall or panel mounting
Weight	0.5 kg
Temperature compensation	PT1000, NTC10K, manual

The EC101 measures conductivity, resistivity and total dissolved solids (TDS) online. It is the standard instrument for checking RO permeate quality, DM plant output, cooling tower blow-down and boiler feed water.

Set a relay to divert off-spec permeate, open a bleed-off valve on a cooling tower when cycles of concentration rise, or simply alarm on high TDS. The 4–20 mA and RS485 Modbus outputs log the value to your PLC or monitoring system.

Typical applications

RO permeate and reject monitoring
DM and softener plant output
Cooling tower blow-down control
Boiler feed and condensate return
Packaged drinking water plants

Send us the application details and we will confirm the right configuration and lead time.

Conductivity / TDS Controller EC101

EC101 specifications

Typical applications

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