Table 5 Operating Temperature Limits (Transmitters With Silicone Fill Fluids) - Honeywell ST 3000 User Manual

3.3 Considerations for ST 3000 Transmitter,
Temperature limits
Table 5 lists the operating temperature limits for the various types of
transmitters with silicone fill fluids. See transmitter specifications for
temperature limits of ST 3000 transmitters with alternative fill fluids.
Table 5 Operating Temperature Limits (Transmitters with Silicone Fill Fluids)
Transmitter Type and Model
Draft Range
Differential Pressure
STD120, STD130, STD170
STD904, STD924,
STD930, STD974
Gauge Pressure
STG140, STG170, STG180,
STG14L, STG17L, STG18L, STG19L
STG944, STG974
STG90L, STG94L,
STG97L, STG98L, STG99L
Absolute Pressure
Flange Mounted
STF128, STF132, STF924, STF932
Pseudo-Flanged Head
STF12F, STF13F, STF92F, STF93F
Gauge Pressure Flange Mount
Remote Diaphragm Seals
STR12D, STR13D, STR14G,
STR17G, STR14A
STR93D, STR94G
† Process temperatures above 125 °C (257 °F) require a reduction in the maximum ambient temperature as follows:
Process Temperature
150 °C (302 °F)
140 °C (284 °F)
125 °C (257 °F)
†† Process temperatures above 65 °C (149 °F) require a 1:1 reduction in maximum ambient temperature.
NOTE: For transmitters with local meter option see Table 8.
NOTE: Transmitters with other fill fluids (CTFE, Neobee, Etc.) have different Operating Temperature Limits. For
more specific information, refer to the appropriate Specification and Model Selection Guide or transmitter nameplate
20 ST 3000 Release 300 and SFC Model STS103 User's Manual
Ambient Temperature
°C
STD110 -40 to 70
STD125 -40 to 85
-40 to 93
-40 to 85
-40 to 93
STG14T -40 to 93
STG93P -15 to 65
-40 to 85
-40 to 85
STA122/12L -40 to 93
STA140/14L -40 to 93
STA922/92L -40 to 85
STA940/94L -40 to 85
STA17L/97L -40 to 85
-40 to 85
STA17L/97L
-40 to 93
-40 to 93
STF14F
-40 to 85
STF14T
-40 to 93
See Specification Sheet
-40 to 85
°F
-40 to 158
-40 to 185
-40 to 200
-40 to 185
-40 to 200
-40 to 200
5 to 149
-40 to 185
-40 to 185
-40 to 200
-40 to 200
-40 to 185
-40 to 185
-40 to 185
-40 to 185
-40 to 200
-40 to 200
-40 to 185
-40 to 200
-40 to 185
Ambient Temperature Limit
50 °C (122 °F)
60 °C (140 °F)
85 °C (185 °F)
Continued
Process Interface Temperature
°C °F
-40 to 70 -40 to 158
-40 to 85 -40 to 185
-40 to 125 -40 to 257
-40 to 125 -40 to 257
-40 to 125 -40 to 257
-40 to 150 † -40 to 302 †
-15 to 95 †† 5 to 203 ††
-40 to 125 -40 to 257
-40 to 110 -40 to 230
See Specification Sheet
-40 to 80 -40 to 176
See Specification Sheet
-40 to 80 -40 to 176
-40 to 80 -40 to 176
-40 to 80 -40 to 176
-40 to 175 -40 to 350
-40 to 93 -40 to 200
-40 to 85 -40 to 185
-40 to 150 † -40 to 302 †
See Specification Sheet
See Specification Sheet
February 2012