TN5FCXA2VG-E
28
The oil density of the diaphragme seal can be found on the datasheet of the transmitter.
Otherwise, for better accuracy, please contact Fuji Electric France
0
20
40
60
80
100
ρ
1
0
H
H
0
H
0
20
40
60
80
100
0
H
T
0
20
40
60
80
100
0
H
T
ρ
0
Caution when vacuum measurement
When process pressure is nearly vacuum pressure, the transmitter must be
installed below the pressure connection (see fig.1)
If installation is like fig. 2 or 3, an additionnal negative pressure is done by
H
0
of filling liquid in the capillaries between transmitter and the low pressure
connection.
In this case, it is imperative to check that the resulting pressure of measure-
ment cell of transmitter is greater than minimum pressure service (refer the
technical specifications of the transmitter model used).
When in doubt, please consult Fuji Electric France
.
Caution on installation
• In order to prevent vibration of the transmitter body and capillary from interfering with
output, the transmitter body should be installed at a vibration free place and the capillary
should be fixed to a stable support.
• Avoid to locate capillaries (high and low pressure) in a place where ambiant temperature
and sunlight are very different. It can be influence the measurement. If it is not possible,
please put a warm up system to maintain a constant temperature.
• Do not scratch or shock the seal diaphragm by hitting hard object against it, for example.
It would damage definitely the transmitter
• Do not apply an excessive force to the screw of flange during connection (respect the
tightening torque according to pipie standard).
Freeze protection.
If the fluide can freeze, the transmitter and the impulse pipe must be warmed up with steam or a
heater.
Do not exceed the temperature limits (measuring cell: 120°C maxi and transmitter: 85°C).
Even when the installations shut down the heat must be maintained, if not the transmitter and
impulse pipes must be drained to prevent freezing.
1
2
3
CAUTION
