Specifications

1.5. CSC 300 (semiconductor) calibration

Flip the switch (Ref. 1, Fig. 17) into the “CAL” position.

Ensure that the sensor is in clean air, otherwise inject synthetic air into it using the calibration kit

and referring to the recommendations below:

Important: to correctly calibrate a sensor equipped with a semi-conductor cell, use of a

humidifier kit is MANDATORY (ref: 6335919) – Fig. 18

USING THE HUMIDIFIER KIT

Lift the lid (Fig. 18 ref. A) and, using a washbottle, moisten the filter, without saturating it, with

distilled water.

Replace the lid and check that all parts are properly assembled and that the assembly is fully

airtight.

Adjust the flow rate to 60 l/h and wait 10 minutes until the humidifier is fully purged.

Apply the gas introduction pipe to the nose of the sensor and wait at least five minutes for the

measurement to stabilize.

Note: the sensor must be powered for at least two hours before any adjustment can be made.

Connect a voltmeter as indicated (Fig. 19 – Ref. 3) and adjust, using potentiometer P5 (Fig. 19, Ref.

1). The output signal must be equal to 880 mV.

Rep 1

Fig. 17

Circuit du capteur CTX/CSC 300

MES

CAL

Vers capteur

Entrée gaz

Fig. 18

Gas

To detector