BC9 Series
Electrodeless Conductivity Controllers

Features

IP66 surface mounting enclosure
Low cost maintenance free system
Cooling tower bleed and proportional feed
Solution concentration with optional 0-5% NaOH range
Rinse water control

The BC9 series of electrodeless conductivity controllers are designed for use in applications where sensor fouling occurs. The electrodeless or inductive method of measuring conductivity provides a maintenance free measurement system at a competitive price when using the BC9 series controllers with the LTH Electronics ECS/20 series of electrodeless conductivity sensors. The controllers are housed in an IP66 surface mounting enclosure with a 3.5 digit LCD display. Four measurement ranges can be selected: – 1.999 mS/cm, 19.99 mS/cm, 199.9 mS/cm & 1999 mS/cm. Note that 1.999 mS/cm = 1999 μS/cm. An optional version is available with the output scaled 0–5% NaOH (Sodium Hydroxide).

The BC9 series comprises of four models as follows:

The BC9 has a single changeover relay, with a fully adjustable high or low control set point that can be used for a variety of dosing and bleeding applications.

The BC92 has a second relay that gives a time proportioning output that is particularly useful for corrosion inhibitor dosing. A 10% to 100% linear proportional dose can be set using a graduated potentiometer.

The BC93 has a second relay, with a fully adjustable high or low control set point that can be used for a variety of dosing and bleeding applications. It can also be configured as an alarm device to operate a safety valve or klaxon.

The BC94 has a second relay, configured as a dose alarm device, perhaps used to operate a safety valve or klaxon. The timer can be set from 1–60 minutes. If any single dose exceeds the set time, the dose relay and LED is de-energised, the alarm relay is energised and the alarm LED flashes. A low-tank switch input can also activate the alarm condition.

The BC92, BC93 and BC94 variants provide an industry-standard isolated two wire 0/4–20 mA output signal for remote monitoring. The output span can be expanded to cover 0–50% of the operating range.

Download Data Sheet | Download Handbook

Call us on +44 (0)1582 593693 or email sales@lth.co.uk to find out how we can help you.