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20 ST 3000 Release 300 and SFC Model STS103 User’s Manual 6/08
3.3 Considerations for ST 3000 Transmitter, Continued
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 Ambient Temperature Process Interface Temperature
°C °F °C °F
Draft Range STD110 -40 to 70 -40 to 158 -40 to 70 -40 to 158
Differential Pressure STD125
STD120, STD130, STD170
STD904, STD924,
STD930, STD974
-40 to 85
-40 to 93
-40 to 85
-40 to 185
-40 to 200
-40 to 185
-40 to 85
-40 to 125
-40 to 125
-40 to 185
-40 to 257
-40 to 257
Gauge Pressure
STG140, STG170, STG180,
STG14L, STG17L, STG18L
STG14T
STG93P
STG944, STG974
STG90L, STG94L,
STG97L, STG98L
-40 to 93
-40 to 93
-15 to 65
-40 to 85
-40 to 85
-40 to 200
-40 to 200
5 to 149
-40 to 185
-40 to 185
-40 to 125
-40 to 150 †
-15 to 95 ††
-40 to 125
-40 to 110
-40 to 257
-40 to 302 †
5 to 203 ††
-40 to 257
-40 to 230
Absolute PressureSTA122/12L -40 to 93 -40 to 200 See Specification Sheet
STA140/14L -40 to 93 -40 to 200 -40 to 80 -40 to 176
STA922/92L -40 to 85 -40 to 185 See Specification Sheet
STA940/94L -40 to 85 -40 to 185 -40 to 80 -40 to 176
Flange Mounted
STF128, STF132, STF924,
STF932
Pseudo-Flanged Head
STF12F, STF13F, STF92F,
STF93F
STF14F
Gauge Pressure Flange Mount
STF14T
-40 to 93
-40 to 93
-40 to 85
-40 to 93
-40 to 200
-40 to 200
-40 to 185
-40 to 200
-40 to 175
-40 to 93
-40 to 85
-40 to 150 †
-40 to 350
-40 to 200
-40 to 185
-40 to 302 †
Remote Diaphragm Seals
STR12D, STR13D, STR14G,
STR17G, STR14A
See Specification Sheet
See Specification Sheet
STR93D, STR94G -40 to 85 -40 to 185 See Specification Sheet
† Process temperatures above 125 °C (257 °F) require a reduction in the maximum ambient temperature as follows:
Process Temperature Ambient Temperature Limit
150 °C (302 °F) 50 °C (122 °F)
140 °C (284 °F) 60 °C (140 °F)
125 °C (257 °F) 85 °C (185 °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