Following Completion Of Calibration - Dräger PEX 3000 Gebrauchsanweisung

Calibrating transmitter
— If after sensitivity adjustment of the type XTR 0010 by means of 4.4 %LEL
ethanol a reference value of 32 is displayed, so the true sensitivity of the
DrägerSensor LC M for ethanol is 32
5-fold higher than with the DrägerSensor PR M because of the internal
amplification of the DrägerSensor PR M DD.
 The reference value and/or the true sensor sensitivity should be recorded for test
purposes.
If the reference value is less than half value recorded during commissioning or if
the measured value does not stabilise within 3 minutes, the sensor is defective
and should be replaced (see page 49).
 Press keys (▲+▼) to exit this function.
 Press key ▲ twice to switch back to the measurement mode. The flashing point
on the right bottom is deactivated.

Following completion of calibration:

— The display shows the current gas concentration in %LEL and the transmitter's
4 to 20 mA-output is proportional to the current gas concentration in %LEL.
 Observe the atmosphere is free of dust and re-install the upper section of the
housing by means of the four screws.
46
2 / 10 = 6,4 mV/%LEL. This value is
*
NOTICE