E.C. – TDS microprocessor transmitter, 4-20 mA – RS485 – Modbus

This transmitter powered with a dc voltage between 9 and 36 volt provides an isolated 4-20 mA “current loop”, a RS485 and Modbus (function 03) outputs.

The instrument works with 2-electrodes and 4-electrodes cells (K = 0.1 – 0.5 – 1 – 10) and RTD Pt100 temperature sensors.
If the Pt100 is connected the transmitter makes automatic temperature compensation. The temperature coefficient and the reference temperature are selectable by the operator. In these conditions it is possible to visualise the temperature readout on the display.

Its modularity, small dimensions and built-in technology make it suitable for measurements of E. Conductivity in various process applications.

Specifications:

• Conductivity scales: from 0 ÷ 2.000 μS to 0 ÷ 2,000 mS
• TDS scales: from 0 ÷ 1.000 ppm to 0 ÷ 1,000 ppt
• Temperature scales: -10.0 ÷ 110.0 °C / 14.0 ÷ 230.0 °F
• Digital output: RS485 isolated
• Analog output: 4-20 mA isolated, “current loop” two wires
• Power supply: 9 / 36 Vdc
• Dimensions: 71x95x58 mm. Rail Din (4 modules)
• EMC/RFI conformity: EN 61326
• Registered design: 002564666-001

HS (commodity) code: 9027.80.11