Transmitter selected for temperature range

A Rotronic I-2000 humidity and temperature transmitter forms part of an environmental test chamber installed at LTC, a UK automotive development centre.

A Rotronic I-2000 humidity and temperature transmitter forms part of an environmental test chamber installed at LTC, one of the UK’s leading independent automotive development centres.

Clive Hurley Environmental Engineering, manufacturer of the test chamber, would traditionally have employed wet and dry bulb psychometry for humidity measurement, but because of the wide operating range of the lTC chamber, a Rotronic I-2000 transmitter was installed.

Andrew Hurley, director, comments: ‘Above 100?C and below 0?C, wet and dry bulb humidity measurement is not practical, and our customer needed to know the humidity value over the chambers full working range. The Rotronic I-2000 offered the widest available temperature range, so it naturally became our preferred choice.’

The LTC test chamber is designed to cope with vehicles up to the size of a truck tractor unit, with internal dimensions of 3.3 x 4.3 x 6.3 length and a load capacity of eight tonnes. The temperature range is 40 to +120?C, with a humidity capability of up to 99%rh over the temperature range of 10 to 70?C. In addition, full solar capabilities are incorporated, so an extensive range of realworld conditions can be reproduced. One company who has made use of the LTC chamber is sports car manufacturer TVR (shown in picture).

The Rotronic I-2000 transmitters are available in a range of configurations to suit almost any application. Maximum measurement ranges are 0 to 100%rh and -50 to +200?C, with operational exposure to -75?C not affecting the sensors.

Rotronic Instrument (UK)

Tel: + 44 (0) 1293 571000