Mc-techgroup ECS Operator's manual Manual de usuario descargar pdf (Pagina 27)

Gas sampling and gas conditioning technology 3-4.1-ME

18.2 TEMPERATURE SETTING FOR THE EC/ECS COOLER

The EC/ECS gas cooler is set at the factory to a regulated temperature of +5°C.

Setting of the regulated temperature is

done by trimming potentiometer P3, on the

EC automatic control board of the cooler.

The setting range covers from 0°C to

20°C. Turning it to the right sets a lower

temperature, and turning it to the left sets

a higher temperature.

Connecting an external voltmeter to plugs

2 and 3 allows the nominal set

temperature to be read off and controlled.

A voltage value of 0.1V corresponds to a

temperature of 1°C.

It is possible to measure and control the

current temperature at measuring sockets

1 and 2.

NOTE!

Freezing-up in the cooling stage will endanger the operation of the cooler

unit. For this reason the cooler temperature must never fall below 2°C!

18.3 CONNECTION OF AN EXTERNAL TEMPERATURE READING WITH OPTION

SECOND PT100 SENSOR (PART NO. 02K9500)

The second PT100 sensor is connected to the clamps 5 and 6 on the clamp block X2 (see fig. 8).

The external temperature reading is connected to the clamps 7 and 8. The connection cable is led

through one of the cable glands PG13,5 at the bottom plate of the cooler housing.

Current-Temp.

> 100k

Setting-Temp.

°C

Uref

Connect a d.c. voltmeter

to terminals 1, 2 and 3!

Uref

Utemp

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 36 37

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Mc-techgroup ECS Operator's manual Manual de usuario Pagina 27