BULLETIN DB-831LP
P ART #K796395
PRESSURE TRANSMITTERS
U.S. GAUGE
PMT PRODUCTS
U.S. GAUGE • PMT PRODUCTS 820 Pennsylvania Blvd., Feasterville, Pa 19053 U.S.A. •Tel: (215) 355-6900 •FAX: (215) 355-2937 •www.ametekusg.com
EFFECTIVE: 12/98 SUPERSEDES: 10/96
Model 831 Low Power Fixed Range Pressure Transmitter
FEATURES
DESCRIPTION
The AMETEK Model 831 low power
pressure transmitter represents a natu-
ral extension of the Model 831 fixed
range transmitter. An all stainless steel
transmitter, it is designed for years of
stable per-formance in even the tough-
est environmental and media condi-
tions. This Model 831 has been de-
signed to meet FM explosion-proof
ratings and also meets NACE standards
for offshore applications. A one year
warranty is standard with every unit.
The small size and light weight of
the Model 831 transmitter eliminates
the need for complicated mounting
hardware and mechanical supports,
thereby reducing installation time sub-
stantially. The in-line connection per-
mits simple field wiring without the
need for additional hardware, adding to
the speed and ease of installation.
It provides a three wire 1-5 or
0.8-3.2 voltage output and requires
less than 30 milliwatts of total power to
operate. The combination of low power
requirement, small size, excellent per-
formance and low price make the Model
831 low power transmitter ideal for
critical outdoor, solar/battery powered
applications. The Model 831 low power
transmitter requires 6 or 8-14VDC exci-
tation and is available in pressure
ranges from 15 to 5000 PSI.
PMT Quality Commitment
AMETEK’s commitment to quality in
Pressure Measurement Technology is
unequalled in the industry. Behind ev-
ery Model 831 low power transmitter is
over 15 years of piezoresistive sensor
chip and stainless steel diaphragm/oil
isolation technology. Over these years,
AMETEK has developed and perfected
test methods and quality checks to
ensure that every transmitter will oper-
ate within specification in tough envi-
ronments for years of service. The most
advanced Automated Test Systems in
the industry are used to characterize
and final test every transmitter.
In addition, every transmitter goes
through numerous quality checks
which verify secure assembly methods
all the way through the production pro-
cess. Nothing less than a 100% quality
level is accepted. With this PMT quality
commitment and our zero-defect phi-
losophy, the AMETEK warranty is
backed with confidence.
A miniature, low-priced fixed
range transmitter, just 0.83
lbs. (374 grams)
All welded 316 stainless steel
construction and wetted
parts (no aluminum)
Ranges from 0-15 to 0-5000
PSIG (0-1 to 0-345 bar)
+0.30% accuracy
Designed to meet FM Explo-
sion-proof approvals (Con-
sult factory for approvals)
8 VDC power operation, 1 to
5 VDC output
6 VDC power operation, 0.8
to 3.2 VDC output
3/4" NPT Female conduit
connection cable
1/2" NPT Female pressure
port connection
Straight in-line construction
for a slim profile
24 inch cable standard
REQUIRES LESS THAN 30
MILLIWATTS TO OPERATE!
© 1998, by AMETEK, Inc. All rights reserved.
5M1298L (110026)
U.S. GAUGE • PMT PRODUCTS
820 PENNSYL V ANIA BL VD., FEASTERVILLE, PENNSYL V ANIA 19053 U.S.A.
TEL: (215) 355-6900 • FAX: (215) 355-2937 •www.ametekusg.com
Model 831 Low Power Fixed Range Pressure Transmitter
SPECIFICATIONS
FUNCTIONAL SPECIFICATION
SERVICE:
Liquid, Gas or Vapor
RANGE LIMIT:
0-15 PSI (0-1.0 bar)
0-30 PSI (0-2.1 bar)
0-100 PSI (0-6.9 bar)
0-300 PSI (0-20.7 bar)
0-1000 PSI (0-69.0 bar)
0-3000 PSI (0-206.9 bar)
0-5000 PSI (0-344.8 bar)
DIMENSIONS
IN
(MM)
TEMPERATURE LIMITS:
Electronics (Ambient) -40OF to 140OF (-40OC
to 60OC)
Process Interface -40OF to 212OF (-40OC to
100OC)
Storage -40O to 212OF (-40OC to 100OC)
OVERRANGE: 300%
HUMIDITY LIMITS: 0-100% RH
PERFORMANCE SPECIFICATIONS
ACCURACY:
+0.30% of calibrated span
including linearity, hysteresis and
repeatability at 25OC and 12 VDC excitation
STABILITY: +0.5% for six months
TEMPERATURE EFFECT: (includes zero
and span) Between -20OF and 140OF (-29OC
and 60OC): +2.0% per 50OF (28OC)
VIBRATION EFFECT: +0.1% for 3g to 200 Hz
OVERRANGE EFFECT: +0.15% F.S. per
200% of max. range
PHYSICAL SPECIFICATIONS
MATERIAL OF CONSTRUCTION:
Process wetted parts: 316L SS
Non Wetted Parts: 316 SS
Fill Fluid: DC 200 Silicone (Standard)
Process Connections: 1/2 NPT-Female
Electrical Connection: 3/4 NPT-Female
Weight: .83 lb. (374 grams)
Cable Lengths: 24 inches (61 cm), 22 AWG
CLASSIFICATIONS:
Factory Mutual
Explosion proof for Class 1,
Division 1, Groups B, C, D:
Class II, Groups E, F, G;
and Class III Hazardous Locations:
Indoor and Outdoor NEMA Type 4
Enclosure
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
WIRING DIAGRAM
MODEL NUMBER
831-
T-G-0015-C-L-S
PROCESS
CONNECTION
T = 1/2" NPT
PRESSURE TYPE
G = Gauge
PRESSURE RANGE
0015 = 0-15 PSI
(0-1.0 bar)
0030 = 0-30 PSI
(0-2.1 bar)
0100 = 0-100 PSI
(0-6.9 bar)
0300 = 0-300 PSI
(0-20.7 bar)
1000 = 0-1000 PSI
(0-69.0 bar)
3000 = 0-3000 PSI
(0-206.9 bar)
5000 = 0-5000 PSI
(0-344.8 bar)
INPUT/OUTPUT
C = 8-14 VDC/1-5
VDC
D = 6-14 VDC/.8-3.2
VDC
DIAPHRAGM
L = 316L Stainless
Steel
FILL
S = Silicone oil
OUTPUT .8 to 3.2 VDC 1 to 5 VDC
OFFSET .8 VDC +2% span 1 VDC +1% span
SPAN 2.4 VDC +2% span 4 VDC +1% span
POWER SUPPLY 6 to 14 VDC 8 to 14 VDC
4.05
(102.87)
1.25
(31.75) 3/4 - 14 NPT FEMALE
22 AWG SHIELDED
CABLE 24"(609.6) LONG
1.75
(44.45)
1/2 - 14 NPT FEMALE
(BLACK) (WHITE)
(RED) (GREEN)
POWER SUPPLY RECEIVER
Example:
831-T-G-0015-
C-L-S
Model 831
Pressure
Transmitter,
1/2"NPT, 0-15 PSI
(0-1 bar), 8-14VDC/
1 to 5 VDC,
Stainless Steel,
Silicone Filled
HEX
1.0
(25.4)HEX
