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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.

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Table 1Table 2Table 3Table 4Table 5Table 6
Table 1Model/Range
STD1200-10 to 0-400"WC
STD1300-5 to 0-100 PSID
STD9240-10 to 0-400"WC
STD9300-10 to 0-100 PSID
Table 2Process head and diaphragm materials - partial list
Acarbon steel heads, 316L diaphragm (air service only)
E316 SS heads, 316L diaphragm
F316 SS heads, Hastelloy C276 diaphragm
JHastelloy C276 heads and diaphragm
Table 3Fill fluid
1DC200 silicone (standard)
2CTFE inert fill (oxidizing applications)
Table 4Options
MBCS bracket for 2” pipe stand or wall mounting
SB 316 SS bracket for 2” pipe stand or wall mounting
FBflat bracket for wall mounting only
UM Hard copy of full user manual
F1calibration test report and certificate o conformance
DE Honeywell DE protocol (formerly standard, must specify)
HC HART compatible electronics
ANanalog output only, no communication
FF Foundation Fieldbus communication
SM local digital meter
ZS zero and span adjustments
LP transient voltage protection, lightning protection
CC custom calibrated span and ID in transmitter memory
TC transmitter span configured electronically
TG stainless steel wired on tag
SS316 SS bolts and nuts for process heads
CRNACE A286 SS bolts & 304 SS nuts for process heads
S2½”NPT 316 SS football flange, CS bolts, Teflon o-ring
S3½”NPT 316 SS football flange and bolts, Teflon o-ring
T2½”NPT Hastelloy C276 football flange, CS bolts, Teflon o-ring
T3½”NPT Hastelloy C276 football flange 316 ss.bolts, Teflon o-ring
SVspecifies side vents on heads, end vents are standard
Table 5Process connection
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