Pipework; Figure 5 Pipework Connections - Michell Instruments Promet EExd User Manual

Promet EExd User's Manual
2.5.1

Pipework

MICHELL MOISTURE
SENSOR
ARRESTORS
GAS IN
Note: Ensure that the process sample gas supply line is well flushed through
to clear any liquids and debris present prior to connection to the instrument. A
sample handling system must prepare the gas in terms of pressure regulation
and filtration before entering into the measurement system.
In accordance with the Certification requirements, the Promet EExd must have, as a
minimum, the components described in Figure 7.
The pipework connections are as follows:
Water dew-point Channel 1 Gas Sample inlet
(Maximum pressure of 138 barg (2000 psig))
Water dew-point Channel 1 Gas Sample outlet
(Vent to atmosphere or low pressure flare line)
Water dew-point Channel 2 Gas Sample inlet
(Maximum pressure of 138 barg (2000 psig))
Water dew-point Channel 2 Gas Sample outlet
(Vent to atmosphere or low pressure flare line)
Michell Instruments
CHANNEL 1
PRESSURE
TRANSMITTER
GAS SAMPLING BLOCK
FLOW
SWITCH
(optional)
FLAME
FLAME
ARRESTOR
BREATHER
GAS OUT
Figure 5
CHANNEL 2
MICHELL MOISTURE
SENSOR
GAS SAMPLING BLOCK
FLOW
SWITCH
(optional)
FLAME
ARRESTORS
GAS IN GAS OUT
Pipework Connections
INSTALLATION
PRESSURE
TRANSMITTER
1/8" NPT(F)
11