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  • Current and voltage outputs available
  • 316 stainless Steel and Elgiloy wetted parts
  • Factory Mutual and Canadian Standards Association approved
  • CE compliant to suppress RFI, EMI and ESD
  • NACE MR0175/ISO 15156 compliant
  • NSI/ISA-12.27.01 approved single seal
623/624 Series Non-Incendive Pressure Transmitters
Unit of Measure
Items 623/624 Series Non-Incendive Pressure Transmitters
623-100-1-1-2-6
0 to 100 psig, 0.25% Accuracy (Best Fit Straight Line (BFSL), 4 to 20 mA Output, 1/4" National Pipe Thread (NPT) Male Pressure Transmitter with 1/2" National Pipe Thread (NPT) Conduit (6 ft Cable Attached)
623/624 Series Non-Incendive Pressure Transmitters
623-15000-1-1-2-6-20
0 to 15,000 psig, 0.25% Accuracy (Best Fit Straight Line (BFSL), 4 to 20 mA Output, 1/4" National Pipe Thread (NPT) Male Pressure Transmitter with 1/2" National Pipe Thread (NPT) Conduit (20 ft Cable Attached)
623/624 Series Non-Incendive Pressure Transmitters
623-2-1-1-2-6
0 to 2 psig, 0.25% Accuracy (Best Fit Straight Line (BFSL), 4 to 20 mA Output, 1/4" National Pipe Thread (NPT) Male Pressure Transmitter with 1/2" National Pipe Thread (NPT) Conduit (6 ft Cable Attached)
623/624 Series Non-Incendive Pressure Transmitters
623-30/30-1-1-8-6
-30 inHg to 30 psig, 0.25% Accuracy (Best Fit Straight Line (BFSL), 4 to 20 mA Output, 1/2" National Pipe Thread (NPT) Male Pressure Transmitter with 1/2" National Pipe Thread (NPT) Conduit (6 ft Cable Attached)
623/624 Series Non-Incendive Pressure Transmitters
623-30-1-1-2-6
0 to 30 psig, 0.25% Accuracy (Best Fit Straight Line (BFSL), 4 to 20 mA Output, 1/4" National Pipe Thread (NPT) Male Pressure Transmitter with 1/2" National Pipe Thread (NPT) Conduit (6 ft Cable Attached)
Description N/A
  • Current and voltage outputs available
  • 316 stainless Steel and Elgiloy wetted parts
  • Factory Mutual and Canadian Standards Association approved
  • CE compliant to suppress RFI, EMI and ESD
  • NACE MR0175/ISO 15156 compliant
  • NSI/ISA-12.27.01 approved single seal
Type N/A Pressure Transmitter
Connection Type N/A Male National Pipe Thread (MNPT)
Weight N/A 12 oz
Storage Temperature [Min] N/A -300 ºC-22 ºF
Storage Temperature [Max] N/A 100 ºC212 ºF
Housing Material N/A 316 Stainless Steel
Connection Size N/A 1/4 in N/A 1/4 in N/A 1/4 in N/A 1/2 in N/A 1/4 in
Connection Size (Search Only) N/A 1/4 in N/A 1/4 in N/A 1/4 in N/A 1/2 in N/A 1/4 in
Full Scale Best Fit Straight Line (BFSL) Accuracy (±) N/A 0.25 %
Output Signal N/A 4 mA to 20 mA, 2-wire
Electrical Connection N/A 1/2 in. NPT male conduit with 6 ft integral cable
Environmental Rating N/A Ingress Protection (IP65) to Ingress Protection (IP67) dependent upon electrical connection
Series N/A Stainless Steel Threaded Connection
Connection Material N/A 316 Stainless Steel
Pressure Range N/A 0 to 100 psig N/A 0 to 15,000 psig N/A 0 to 2 psig N/A -30 inHg to 30 psig N/A 0 to 30 psig
Absolute Pressure Range N/A 0 to 100 psia
Stability N/A ≤ ±0.2% full scale for 1 year, non-accumulating
Response Time N/A ≤1 ms
Service Life N/A > 100,000,000 Load Cycles
Compensated Temperature Range N/A 32 to 176 ºF0 to 80 ºC
Note for Compensated Temperature Range N/A Zero effect is ±0.011% full scale/ºF within compensated range
Span effect is ±0.011% full scale/ºF within compensated range
Media Temperature Range N/A -40 to 212 ºF-40 to 100 ºC
Ambient Temperature Range N/A -22 to 176 ºF-30 to 80 ºC
Power Requirement N/A 10 Vdc to 30 Vdc (4 mA to 20 mA, 2-wire)
6 Vdc to 30 Vdc (1 Vdc to 5 Vdc, 3-wire, 0.5 Vdc to 4.5 Vdc, 3-wire)
14 Vdc to 30 Vdc (0 Vdc to 10 Vdc, 3-wire)
Current for 4 to 20 Milliampere (mA) N/A 0.020 A
Resistance for 1 to 5 Direct Current (DC) Voltage, 3-Wire N/A ≥ 10,000 Ω
Measuring Element N/A 623 Series is 316 stainless steel for ranges up through 0 psi to 300 psi, 316 stainless steel and Elgiloy for ranges 0 psig to 500 psig and higher
Electrical Protection N/A Reverse polarity, over-voltage and short circuit protected
Electromagnetic Rating N/A European Conformity (CE) Compliant to Electromagnetic Compatibility (EMC) Norm European Standards (EN) 61326:2014/A1:1998, Radio Frequency Interference (RFI), Electromagnetic Interference (EMI) and Electrostatic Discharge (ESD) Protection
Shock According to International Electrotechnical Commission (IEC) 60068-2-27 N/A 1,000 g
Vibration According to International Electrotechnical Commission (IEC) 60068-2-6 N/A 20 g
Warranty N/A 3 y
Limitations Which Apply Are N/A These units must be operated within the catalogued environmental and application parameters. Determination of failure will be made by NOSHOK, Inc.'s equipment and personnel or a certified test facility specializing in this type of evaluation.

In keeping with and for purposes of product and/or manufacturing process improvements, NOSHOK, Inc. reserves the right to make design changes without prior notice.
Application N/A
  • Chemical processing
  • Gas pressure measurement
  • Oil field & offshore
  • Mining
  • Well head measurement
Additional Information N/A NOSHOK 621 and 622 Series transmitters are Factory Mutual and Canadian Standards Association approved for use in hazardous location applications as follows:
  • Non-Incendive for:
    • Class I, Division 2, Groups A, B, C and D.I.P.
    • Class II, Division 1, Groups E, F and G Maximum ratings 30 Vdc, 20 mA.
  • CE compliant with pressure equipment directive 2014/68/EU.
  • ANSI/ISA-12.27.01, Approved single seal.
Options and Accessories N/A
  • SS Threaded Orifice - 623 Only (ST8)
  • 30 foot cable/lead attached to 1/2" NPT Male Conduit w/ 6 foot integral cable
N/A 20 foot cable/lead attached to 1/2" NPT Male Conduit w/ 6 foot integral cable N/A
  • SS Threaded Orifice - 623 Only (ST8)
  • 30 foot cable/lead attached to 1/2" NPT Male Conduit w/ 6 foot integral cable
N/A
  • SS Threaded Orifice - 623 Only (ST8)
  • 30 foot cable/lead attached to 1/2" NPT Male Conduit w/ 6 foot integral cable
N/A
  • SS Threaded Orifice - 623 Only (ST8)
  • 30 foot cable/lead attached to 1/2" NPT Male Conduit w/ 6 foot integral cable
Assembly Options N/A NOSHOK offers multiple assembly options to meet your specific system requirements. Consult factory to discuss your customized solution.
Digital Indicators N/A NOSHOK Digital Indicators provide local indication for pressure, level and temperature transmitters.
Pressure Snubbers - Piston Type N/A
  • Resist clogging and are self-cleaning
  • Five different sized pistons included with each snubber to ensure the correct amount of snubbing for virtually every application
  • Available in Brass and 316 Stainless Steel in 1/4" NPT, 1/2" NPT or SAE J1926-3: 7/16-20
  • Weight approximately 0.2 lb. for 1/4" & 7/16", and approximately 0.4 lb. for 1/2"​​​​​​
Pressure Snubbers - Sintered Type N/A
  • Cost effective solution to protect expensive instrumentation
  • Increases gauge readability by smoothing out pressure surges, pulsations and spikes
  • 5 basic elements available for each snubber to accommodate specific application needs
  • Snubbing action achieved by utilizing a corrosion resistant 316 Stainless Steel sintered porous element
  • Exotic materials or intermediate disc grades available
  • Provides long service life with no moving parts to wear out
  • Weight approximately 0.2 lb. for 1/4" & 7/16", and approximately 0.4 lb. for 1/2
Steam Syphons N/A
  • Protect the instrument from the damaging effects of high temperature steam
  • Recommended for use in all steam applications
  • Available in 1/4" and 1/2" NPT sizes in welded steel, welded 316 Stainless Steel or seamless 316 Stainless Steel with ratings to 3,800 psi at 850 ºF
Swivel Adapters N/A
  • Temperature ratings: 15,000 psi at 200 ºF and 3,000 psi at 1,000 ºF
  • Used with gauges and gauge valves to adjust the line of sight
  • Rotates 360º to allow the connected instrument to be positioned in the desired direction
  • The pressure connection is achieved with a tapered cone style compression fitting simply by tightening the swivel hex nut
  • All 316 Stainless Steel construction
  • Standard with 1/2" NPT male process - 1/2" NPT female instrument connections
  • Also available with 1/4" NPT connections, same specifications apply
  • Weight approximately 0.8 lb.
Prop 65 Warnings N/A
WARNING: This product can expose you to chemicals including Lead and Nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov