City Technology, has designed and developed a new microprocessor based 4-20mA board for use with their 3 Series range of toxic gas sensors for safety applications.
The
new 4-20mA board is a small, printed circuit board that is attached
to the sensor and converts the sensor's output into the industry-standard
4-20mA output for two-wire fixed point monitoring applications. The
4-20mA output version of City's 3 Series sensors are available for the
following toxic gases: CO, H2S, SO2, NO2,
Cl2, H2.
A principle benefit of using transmitter sensors is that they can be pre-calibrated away from end-users' monitoring sites, and once installed, are ready for use. City Technology supply these transmitters fully calibrated to the users specified range so being ready to use immediately on receipt.
The board's previous analogue design necessitated a timeconsuming, manual calibration process, whereby the user was required to adjust potentiometers on the board in order to set the span and zero. The new microprocessor board removes the need for potentiometers and simply requires a button to be pressed when zero and span gas is applied so making calibration quicker and simpler to perform.
City Technology is a leading supplier of electrochemical, catalytic bead, infra-red and semiconductor gas sensors to OEMs around the world.
For further information of this or any of City Technology's range of over 200 sensors for detecting 20 different gases sensors contact:
Peter Wright - Sales Manager
Tel: +44 23 9228 8113
Mobile: 07713 723939
E-mail: peter.wright@citytech.co.uk