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Honeywell ST3000 Honeywell Smart Differential Pressure Transmitters

Honeywell Smart Differential Pressure Transmitters

Differential pressure transmitters are used primarily in flow applications in concert with a measuring element such as an orifice plate, pitot tube, or V-Cone type sensor. These devices measure the difference between 2 pressures and provide a linear or square root analog output signal in proportion to the difference. DP transmitters are also used in level and low gauge pressure applications where the pressure inside a duct or the level of fluid inside a tank can be compared to atmospheric pressure. Vacuum & compound range applications should be limited to where the vacuum value is less than 30” water column vacuum.

Smart transmitters have the benefit of adjustable measuring span or range within specified limits. These units can be re-ranged in the field or instrument shop with hand-held communication tools and/or pressure standards. To select the appropriate model, determine the pressure range of the media being measured, identify the temperature of the media being measured, understand the corrosive nature of the media, and consider the mounting of the unit for practical installation, calibration and maintenance of the unit.

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5Table 6
Table 1Range
STA122(0-50 to 0-780 mm HGA)
STA140(0-5 to 0-500 PSIA)
STA922(0-50 to 0-780 mm HGA)
STA940(0-20 to 0-500 PSIA)
Table 2Partial list
Acarbon steel head, 316L diaphragm (air service only)
E316 SS head, 316L diaphragm
F316 SS head, Hastelloy C276 diaphragm
JHastelloy C276 head and diaphragm
Table 3Fill fluid
1DC200 silicone (standard)
2CTFE inert fill (use oxidizing applications)
Table 4Process connection
G1/2 “FNPT
Table 5Options
MBCS bracket for 2” pipe stand or wall mounting
SB316 SS bracket for 2” pipe stand or wall mounting
FBflat bracket for wall mounting only
UMHard copy of full user manual
F1calibration test report and certificate o conformance
DEHoneywell DE protocol (formerly standard, must specify)
HCHART compatible electronics
ANanalog output only, no communication
FFFoundation Fieldbus communication
SMlocal digital meter
ZSzero and span adjustments
LPtransient voltage protection, lightning protection
CCcustom calibrated span and ID in transmitter memory
TCtransmitter span configured electronically
TGstainless steel wired on tag
Table 6Approvals
1CFM Explosion Proof & Intrinsically Safe Class 1 Div 1
2JCSA Explosion Proof & Intrinsically Safe Class 1 Div 1
3HATEX approvals, see spec sheet for details

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