Form creation date: 01.04.2008
Document creation date: 13.01.2020
12 / 18
4.0 GAS TYPE SELECTION (OPTIONAL)
fig.26
fig.27
In addition to the CH4 calibration, METREX2 may be optionally provided with GPL
and/or City Gas calibrations.
User can switch gas type during the normal operation of the instrument, after self
calibration process. Switch gas type holding simultaneously key (4) and (5) (fig.1,
fig.26 e fig.27); display will show the new gas type for a while. Metrex 2 is now ready
to carry out measures of the new gas.
When Metrex 2 is turned on, display shows current gas setting with
CH4
,
C3H8
or
Nothing (CIT)
.
WARNING: gas type selection must be done in a gas-free area.
5.0 PUMP BLOCK
METREX2 may be provided with an optional pump blocking features: in event of a continuous flux
obstruction (for about 4 seconds), Metrex 2 stops measure and display shows “Poff” (fig.28). To
restart the measure, any of the four
keys under the display can be pressed
(fig.1 keys (2), (3), (4),(5)).
fig.28