Samson Media 7 5007-1, Mounting And Operating Instructions

Page: 65 / 124

EB 9510 EN 7-9
Start-up and configuration
a) Zero point of pressure sensor
We recommend for devices with pressure sensor (Type 5007-1-xxxxxxxxxxxxxxxxx 2 ) per-
forming a zero calibration of the pressure sensor during start-up and in cases when the pres -
sure reading on the display of the differential pressure meter does not match the pressure
reading on the pressure gauge.
Before performing a zero calibration, a pressure sensor span set beforehand must be reset.
Preparing zero calibration
To perform a zero calibration, 0 bar must be
applied to the low-pressure chamber
(low-pressure pipe p
2
) of the dp cell:
Î
Close the shut-off valves (+) and (–).
Î
Open the bypass valve.
Î
Slowly open one of the screw plugs to re-
lieve the pressure from the low-pressure
chamber.
The error "Large differential pressure drop"
is generated when the bypass valve is open.
Confirm this error by pressing the key.
Screw plugs
Shut-off
valve (+)
Shut-off
valve (–)
Note