Select A NOSHOK Transducer/Transmitter
621/622 Series

NOSHOK Series 621 and 622 Explosion-Proof Pressure Transmitters

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       Applications

  • Hydraulic and pneumatic systems
  • Pumps and compressors
  • Test equipment and systems
  • HVAC systems
  • Power generation
  • Water and wastewater
  • Refrigeration equipment
  • Laboratory and test equipment
  • Chemical/Petrochemical
  • Marine

   
STOCK MODEL SPECIFICATIONS
Output signals
4 mA to 20 mA, 2 wire
0 Vdc to 5 Vdc, 3 wire
0 Vdc to 10 Vdc, 3 wire
1 Vdc to 5 Vdc, 3 wire
.5 Vdc to 4.5 Vdc, 3 wire
Accuracy
±0.25 % Full Scale (Best Fit Straight Line)
(includes the combined effects of linearity, hysteresis and repeatability)
Hysteresis
≤ ±0.1 % Full Scale
Repeatability
≤ ±0.05 % Full Scale
Stability
≤ ±0.2 % Full Scale for 1 year, non-accumulating
Pressure ranges
Standard ranges from vacuum to 15000 psi
Proof pressure
3 times Full Scale for ranges 0 to 15 psi through 0 to 200 psi
1.75 times Full Scale for ranges 0 to 300 psi through 0 to 10000 psi
1.5 times Full Scale for 0 to 15000 psi range
Burst pressure
3.8 times Full Scale for ranges 0 to 15 psi through 0 to 200 psi
4 times Full Scale for ranges 0 to 300 psi through 0 to 10000 psi
3 times Full Scale for 0 to 15000 psi range
Power supply
10 Vdc to 30 Vdc unregulated for 4 mA to 20 mA; 6 Vdc to 30 Vdc for
1 Vdc to 5 Vdc and 0 Vdc to 5 Vdc; 14 Vdc to 30 Vdc for 0 Vdc to 10 Vdc; 0.5 Vdc to 4.5 Vdc low power (≤ 2 mA for Power Supply ≤ 12 Vdc) output
Load limitations
 (V Power Supply – 10 Vdc ) / 0.020 Amp for 4 mA to 20 mA
≥ 10,000 Ω for 1 Vdc to 5 Vdc, 3 wire
Response time
≤1 ms (between 10 % and 90 % Full Scale)
Durability
>100 million Full Scale cycles
Zero/Span
≤0.5 % Full Scale
Temperature ranges
Compensated 32 °F to 176 °F (0 °C to 80 °C)
Zero effect is ±0.011% Full Scale/°F within compensated range
Span effect is ±0.011% Full Scale/°F within compensated range
Ambient -22 °F to 212 °F (-30 °C to 100 °C); -46 °F to 221 °F optional
Media –25 °F to 212 °F (-32 °C to 100 °C); -46° F to 221 °F optional
Storage –40 °F to 212 °F (-40 °C to 105 °C)
Wetted materials
Model 621 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; Model 622 is 316 stainless steel with Buna N O-ring; (Viton® O-ring optional)
Housing material
316 stainless steel
Environmental rating
IP65 to IP68 depending upon electrical connection
Electromagnetic rating
RFI, EMI and ESD protection
Electrical protection
Reverse polarity, over-voltage and short circuit protection
Shock
1000 g’s according to IEC 770 for mechanical shock
Vibration
20 g’s according to IEC 770 under resonance conditions
Hazardous approvals
Factory Mutual approved
Explosion-proof with entity approve for: Class I, Division 1,
Groups A, B, C and D
Dust Ignition-proof with entity approval for Class II/III, Division 2,
Groups E, F and G
Maximum electrical ratings 30V, 20 mA
Weight
Approximately 7 oz



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