8
testo 6721 - Commissioning
Commissioning
Assembling the instrument
➣
Assembling the instrument at the process connection:
✓
If assembling without a measurement chamber: The sections of pipe
where the instrument is assembled are depressurized.
1
To ensure leaktightness: Wrap the thread of the screwed socket using
sealing tape (e. g. PTFE) or insert a copper sealing ring (internal diameter
of 21 mm).
2
Assemble the instrument according to the application in hand:
Applications/assembly options
A
Process temperatures < 15 °C or > 35 °C (max. 200 °C):
Assembly with measurement chamber and cooling coil.
B
Process temperatures of 15 - 35 °C, quick assembly/dismantling of instrument is required, sufficient
incident flow through sensor (1l/min) not present:
Assembly with measurement chamber.
If media are contaminated: use suitable pre-filter.
C
Process temperatures of 15 - 35 °C, installation of sensor directly in the process is possible, quick
assembly/dismantling of instrument is not required, sufficient incident flow through sensor (1l/min)
present, compressed air is not contaminated:
Assembly without measurement chamber and without cooling coil
C
C
B
A
A
0555 6721-A01
0555 6721-A02
G 1/2
NPT 1/2"
G 1/2
NPT 1/2"
➊
➋
➏
➎
➍
➌
