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625/626 Series Intrinsically Safe Pressure Transmitters

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Oil & Gas
Water/
Wastewater
  • Low pressure ranges for vapor recovery applications, vacuum and compound ranges through 0 psig to 15,000 psig; absolute ranges from 0 psia to 15 psia through 0 psia to 300 psia
  • Current output
  • 316 and 14-4PH Stainless Steel wetted parts
  • Factory Mutual and Canadian Standards Association approved
  • CE compliant to suppress RFI, EMI and ESD
  • NSI/ISA-12.27.01 approved single seal

NOSHOK 625 and 626 Series transmitters are Factory Mutual and Canadian Standards Association approved for use in hazardous location applications as follows:

  • Intrinsically Safe, entity approval for Class I, II and III, Division 1, Groups A, B, C, D, E, F and G; and Class I, Zone 0 Aex ia IIC
  • Dust Ignition-proof for Class II and III, Division 2, Groups F and G
  • Non-incendive for Class I, Division 2, Groups A, B, C and D.
  • CE compliant with pressure equipment directive 2014/68/EU. 
  • ANSI/ISA-12.27.01, Approved single seal.

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SERIES        625 Stainless steel threaded connection 626 316 Stainless steel flush diaphragm 626H Hastelloy flush diaphragm
PRESSURE
RANGES
4/12 oz/in2 -4 oz/in2 to 12 oz/in2 30/100 -30 inHg to 100 psig 150 0 psig to 150 psig 5000 0 psig to 5,000 psig 15A 0 psia to 15 psia
12 oz/in2 0 oz/in2 to 12 oz/in2 30/150 -30 inHg to 150 psig 200 0 psig to 200 psig 6000 0 psig to 6,000 psig 30A 0 psia to 30 psia
16 oz/in2 0 oz/in2 to 16 oz/in2 30/200 -30 inHg to 200 psig 300 0 psig to 300 psig 7500 0 psig to 7,500 psig 60A 0 psia to 60 psia
50 inH2O 0 inH2O to 50 inH2O 3 0 psig to 3 psig 500 0 psig to 500 psig 8000 0 psig to 8,000 psig 100A 0 psia to 100 psia
100 inH2O 0 inH2O to 100 inH2O 5 0 psig to 5 psig 750 0 psig to 750 psig 10000 0 psig to 10,000 psig 150A 0 psia to 150 psia
30vac -30 inHg to 0 psig 15 0 psig to 15 psig 1000 0 psig to 1,000 psig 15000 0 psig to 15,000 psig 200A 0 psia to 200 psia
30/15 -30 inHg to 15 psig 30 0 psig to 30 psig 1500 0 psig to 1,500 psig     250A 0 psia to 250 psia
30/30 -30 inHg to 30 psig 60 0 psig to 60 psig 2000 0 psig to 2,000 psig        
30/60 -30 inHg to 60 psig 100 0 psig to 100 psig 3000 0 psig to 3,000 psig        
  psig = gauge pressure  psia = absolute pressure Other ranges available upon request
  NOTE: Series 626 is available for pressure ranges up to 0 psig to 8,000 psig      
ACCURACY 1 ± 0.25% full scale (BFSL)   2 ± 0.125% full scale (BFSL)      
OUTPUT SIGNAL 1 4 mA to 20 mA, 2-wire                
PROCESS CONNECTIONS 2 1/4" NPT male     13 G1B (626 Series only, <30 psig)
8 1/2" NPT male 45 SAE J514 FIG 34B
11 G1/2B*    
ELECTRICAL CONNECTIONS 1 36" Cable (connected to option 8) 14 Hirschmann Connector 1/2" NPT conduit - IP65    
3 6-pin Bendix - IP65     25 M12x1 (4-pin) IP67        
8 Hirschmann (DIN EN 175301-803 Form A) 36 Integral Cable 36" - IP67      
OPTION ST8 Threaded Orifice (625 Series only)            

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SPECIFICATIONS
Output signal 4 mA to 20 mA, 2-wire
Pressure ranges Vacuum through 0 psig to 15,000 psig
Absolute from 0 psia to 15 psia through 0 psia to 300 psia
Accuracy ±0.25% full scale (BFSL); optional ±0.125% full scale (BFSL) (Includes the
effects of non-linearity, hysteresis, non-repeatability, zero point and full scale errors)
Stability ≤ ±0.2% full scale for 1 year, non-accumulating
Adjustment ± 10% full scale for zero and span
Response time ≤ 1 ms (between 10% and 90% full scale)
Service life > 100,000,000 load cycles
Temperature ranges Compensated 32 °F to 176 °F (0 °C to 80 °C)
Zero effect is ±0.011% full scale/ °F
Span effect is ±0.011% full scale/ °F
Media -4 °F to 185 °F (-20 °C to 85 °C)
Ambient -4 °F to 176 °F (-20 °C to 80 °C)
Storage -22 °F to 221 °F (-30 °C to 105 °C)
Power requirement* 10 Vdc to 30 Vdc (4 mA to 20 mA, 2-wire)
Load limitations ≤ (VPower-10)/0.020 Amp
Proof pressure 3.5 times full scale for ranges 0 psi to 5 psi through 0 psi to 200 psi
2 times full scale for ranges 0 psi to 300 psi through 0 psi to 10,000 psi
1.5 times full scale for 0 psi to 15,000 psi
Burst pressure 4 times full scale for ranges 0 psi to 5 psi through 0 psi to 200 psi
4 times full scale for ranges 0 psi to 300 psi through 0 psi to 10,000 psi
3 times full scale for 0 psi to 15,000 psi
Measuring element 625 Series is 316 stainless steel for ranges up through 0 psi to 300 psi, 316 stainless steel with 17-4PH stainless steel for ≥300 psi;
626 Series is 316 stainless steel with NBR o-ring
Connection 316 stainless steel
Housing material 316 stainless steel
Environmental rating IP65 to IP67 depending upon electrical connection
Electromagnetic rating CE compliant to EMC norm EN 61326:2014/A1:1998
RFI, EMI and ESD protection
Electrical protection Reverse polarity, over-voltage and short circuit protected
Shock 1,000 g’s according to IEC 60068-2-27
Vibration 20 g’s according to IEC 60068-2-6
Weight Approximately 7 oz.

Options & Accessories

  • SS Threaded Orifice- 625 Only (ST8)
  • G 1 Weld-on Adaptor - 626 Only (G1)
  • G 1/2 Weld-on Adaptor - 626 Only (G1/2)

NOSHOK offers multiple assembly options to meet your specific system requirements. Consult factory to discuss your customized solution.

NOSHOK Digital Indicators provide local indication for pressure, level and temperature transmitters.

View NOSHOK's Digital Indicators offering

  • Resist clogging and are self-cleaning
  • Five different sized pistons included with each snubber to ensure the correct amount of snubbing for virutally 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"​​​​​​

Specifications

WARNING: This product can expose you to chemicals including Lead, which is 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


WARNING: This product can expose you to chemicals including Nickel, which is 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

  • 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

Specifications

WARNING: This product can expose you to chemicals including Lead, which is 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


WARNING: This product can expose you to chemicals including Nickel, which is 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

  • 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 @ 850 ºF

Specifications

Dimensions

Steam Syphons Temperature 1/4" NPT vs. Pressure charts

Steam Syphons Temperature 1/2" NPT vs. Pressure charts

WARNING: This product can expose you to chemicals including Lead, which is 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


WARNING: This product can expose you to chemicals including Nickel, which is 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

  • Temperature ratings: 15,000 psi @ 200 °F and 3,000 psi @ 1,000 °F
  • Used with gauges and gauge valves to adjust the line of sight
  • Rotates 360° 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.

Swivel Adaptor Dimensions


WARNING: This product can expose you to chemicals including Nickel, which is 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


WARNING: This product can expose you to chemicals including Nickel, which is 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