Yokogawa EJX438B - Manual (Page 88)

<10. General Specifications>
10-2
IM 01C27H01-01E
Ambient Humidity Limits
0 to 100% RH
Working Pressure Limits
See table 10.1.
For atmospheric pressure or below, see figure
10.1 and 10.2.
2.7 (0.38)
100 (14.5)
0.1(0.014)
1(0.14)
10 (1.4)
-50 0 50 100 150 200 250 300 350
F01E.ai
Process temperature
for fill fluid code B
Process temperature
for fill fluid code A
Process temperature
for fill fluid code C
Flange max.
working
pressure
Atmospheric
pressure
Transmitter ambient
temperature range
(for fill fluid code
A, B)
Process Temperature (°C)
Working
pressure
kPa abs
(psi abs)
Figure 10.1 Working Pressure and Process
Temperature (Fill fluid : silicone oil for
general and high temperature use)
2.7 (0.38)
0.1(0.014)
1 (0.14)
10(1.4)
100 (14.5)
51 (7.4)
-50 0 50 100 150 200 250 300 350
F02E.ai
Process temperature
for fill fluid code E
Process temperature
for fill fluid code D
Flange max.
working
pressure
Atmospheric
pressure
Transmitter ambient
temperature range
(for fill fluid code D)
Process Temperature (°C)
Working
pressure
kPa abs
(psi abs)
Figure 10.2 Working Pressure and Process
Temperature (Fill fluid : fluorinated
oil for oil-prohibited use and ethylene
glycol for low temperature use)
Table 10.1 Process temperature, Ambient temperature, and Working pressure
T06E.ai
B
C
D
E
–50 to 100°C
(–58 to 212°F)
A
–30 to 180°C
(–22 to 356°F)
10 to 310°C
(50 to 590°F)
–20 to 120°C
(–4 to 248°F)
–10 to 60°C
(14 to 140°F)
–15 to 60°C
(5 to 140°F)
–10 to 250°C *4
(14 to 482°F)
10 to 60°C
(50 to 140°F)
–40 to 60°C
(–40 to 140°F)
–10 to 60°C
(14 to 140°F)
Specific gravity *3
1.09
0.94
1.90 to 1.92
1.90
Process temperature *1 Code Ambient temperature *2
2.7 kPa abs
(0.38 psi abs) to
flange rating pressure
1.07
Working pressure
Fluorinated oil
(oil-prohibited use)
Ethylene glycol
(low temperature use)
Silicone oil (general use)
Silicone oil
(high temperature use)
Silicone oil (general use)
51 kPa abs
(7.4 psi abs) to
flange rating pressure
100 kPa abs
(atmospheric pressure)
to flange pressure rating
*1: See figure 10-1 and 10-2 ‘Working Pressure and Process Temperature.
*2: This ambient temperature is the transmitter ambient temperature.
*3: Approximate values at a temperature of 25°C (77°F)
*4: In case of wetted parts material code TW (Tantalum), process temperature limit is up to 200°C (392°F).
Note: The differential pressure transmitter should be installed at least 600 mm below the high pressure (HP) process connection.
However, this value (600 mm) may be affected by ambient temperature, operating pressure, fill fluid or material of the wetted
diaphragm. Contact YOKOGAWA when the transmitter can not be installed at least 600 mm below the HP process connection..