18
TN5FCXA2V5h-E
5- Pressure measurement for gas
Place the transmitter above the process pipes to pre-
venting condensation in the impulse pipe and in the
measuring
6- Level measurement
5HIHUHQFHFROXPQ¿OOHG
For measurement, connect the highest liquid level of tank with the low pressure side of
transmitter, and the lowest liquid level of tank with the high pressure side of transmitter.
The reference column (connected to the high-
HVWOHYHORIWDQNPXVWEH¿OOHGRIÀXLG
Level calculation formula
/59
ȡ+
2
±ȡ
0
H
1
859
ȡ+
2
ȡ
1
K±ȡ
0
H
1
ȡ
0
ȡȡ
1
: Density
H
1
, H
2
: Liquid
level,
h:
Liquid level change
H
1
H
2
ρ
0
ρ
h
ρ
1
Max. liquid level
Min. liquid level
Condensate chamber
High
pressure
side
Manifold
Low
pressure
side
Isolating valve
Process pipe
Impulse pipe
Manifold
Pressure tap
Atmospheric
air inlet
H
1
ρ
h
ρ
1
Max. liquid
level
Min. liquid
level
Atmospheric
air inlet
Manifold
High
pressure
side
Low
pressure
side
(2) Reference column empty
For an open tank, leave the low pressure side of transmitter open to atmosphere.
Level calculation formula
/59
ȡ+
1
859
ȡ+
1
ȡ
1
h
ȡȡ
1
: Density
H
1
: Liquid level,
h : Liquid level change
