Considerations For Hart Communicator; Considerations For Local Smart Meter Option; Table 5 Transmitter Maximum Allowable Working Pressure (Mawp) Ratings - Honeywell ST 3000 User Manual

3— Preinstallation Considerations - Considerations for HART communicator
Pressure ratings
Table 5 lists maximum working pressure for a given transmitter Upper Range Limit (URL). The maximum
allowable working pressure (MAWP) is the pressure used for the approval body safety calculations

Table 5 Transmitter Maximum Allowable Working Pressure (MAWP) Ratings

Transmitter Type
Draft Range
Differential Pressure
Gauge Pressure
Flange Mount
Remote Seal
Absolute Pressure
Note: Maximum Allowable Working Pressure (MAWP) may vary with materials of construction and process
temperature. For more specific information, refer to the appropriate Specification and Model Selection
Guide or transmitter nameplate
Note: To convert bar values to kilopascals (kPa), multiply by 100.
For example, 3.5 bar equals 350 kPa.

Considerations for HART communicator

Guidelines
When using the communicator to communicate with the transmitter:
•
Be sure the power supply voltage does not exceed 42 Vdc (30 Vdc for intrinsically safe loops).
•
Be sure there is at least 250 ohms of resistance between the communicator and the power supply for
proper communication.
•
Refer to communicator product manual for such information as operating limits.

Considerations for Local Smart Meter Option

If your transmitter is to be installed and operated with one of the integral smart meter options, please note
the Smart meter specifications and operating conditions for the meter located in Appendix A of this
manual.
16
Upper Range Limit (URL)
10 inches H 2 O (25 mbar)
400 inches H2O (1 bar)
100 psi (7 bar)
3000 psi (210 bar)
100 psi (7 bar)
300 psi (21 bar)
500 psi (35 bar)
3000 psi (210 bar)
6000 psi (415 bar)
10000 psi (690 bar)
400 inches H2O (1 bar)
100 psi (7 bar)
400 inches H2O (1 bar)
100 psi (7 bar)
780 mmHg Absolute
(1 bar)
500 psia (35 bar)
ST 3000 HART Transmitter Release 300 User Manual
MAWP
50 psi (3.5 bar)
3000 psi (210 bar)
3000 psi (210 bar)
3000 psi (210 bar)
100 psi (7 bar)
300 psi (21 bar)
500 psi (35 bar)
3000 psi (210 bar)
6000 psi (415 bar)
10000 psi (690 bar)
Per selected flange and material
(ANSI/ASME 150#, 300#, DN PN40)
Lesser MAWP of either Remote Seal
selected or transmitter pressure
rating
780 mmHg Absolute
(1 bar)
500 psia (35 bar)
10/05