Condumax Ii Start-Up Purge Procedure - Michell Instruments Condumax II User Manual

Condumax II User's Manual
2.6

Condumax II Start-Up Purge Procedure

1. Before start-up, ensure that all power and signal connections to the
Condumax II are fully isolated.
2. Ensure that all inlet & outlet gas connections to the Condumax II are
correct and leak tight checked.
3. Fully open the fl ow control valve of the fl owmeter on the hydrocarbon
dew-point channel and, if also fi tted, the water dew-point channel.
4. Set the solenoid valve to the
by using the manual override operating adjuster mounted on the
base of the solenoid valve body. Indication of the manual override position
is shown on a label attached to the solenoid Access to the solenoid valve
is obtained by removing the enclosure cover. Refer to Section 4.2 for
removal and refi tting of the enclosure cover.
5. Fully open the sample gas inlet isolation valve.
6. Gradually open the pressure regulator until full scale fl ow is observed on
the hydrocarbon dew-point channel fl owmeter and the water dew-point
channel fl owmeter, if fi tted.
Michell Instruments
This is a mandatory procedure stipulated in the ATEX/IECEx
certifi cation of the product. The procedure must be fully
carried out prior to the Condumax II having any power or
signal connections applied. It must also be fully carried
out after the Condumax II and associated gas handling
equipment has been installed and leak checked. Always
refer to Appendix G.4 - Special Conditions of Safe Use.
This procedure must be carried out at any time following
service or maintenance periods that cause any of the
Condumax II or associated gas handling equipment pipe
work to be disconnected.
It is not necessary to carry out this procedure if power or
signal connections only, have been disconnected.
PURGE
The manual override operating adjuster is provided
only to allow initial system set-up and purge in an
unpowered condition. This manual override adjuster
must never be operated while in a pressure induced
condition. The manual operation of the valve is not
required for the normal operating cycle of the system.
position (fully screwed in clockwise)
INSTALLATION
17