Tel-Tru Threaded Pressure Transmitter, P121
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P121 Threaded Pressure Transmitter

Brand: Tel-Tru Manufacturing Co.
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The P121 is designed to last in high cyclical environments with or without the presence of water hammering or spiking.

Advanced manufacturing techniques, extreme environmental burn-in and thorough residual stress relieving procedures ensure the P121 maintains its performance over time.

Every Tel-Tru P121 is rated to NEMA 4X standards regardless of the output (mVdc, Vdc, or mAdc) or pressure format (gauge, absolute, or vacuum).

Pressure ranges are available from psig: 0 to 3 (kPa: 0 to 20.68, bar: 0 to 0.2) through psig: 0 to 15,000 (kPa: 0 to 103,400, bar: 0 to 1,034).

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Specifications

Brand

Accuracy

  • Static Accuracy: ± 0.1 % of Full Scale Output, Available < 15,000 psi (Includes Improved Zero Balance to 0.5 %)
  • Static Accuracy: ± 0.25 % of Full Scale Output (BFSL, RSS) Combined Effects of Non-Linearity, Hysteresis & Repeatability,

Applications

  • Hydraulic Applications
  • Injection Molding Machines
  • Laboratory & Test Equipment
  • Marine & Offshore Applications
  • Petrochemical
  • Pneumatics
  • Pump & Compressors

Approvals & Certifications

  • CE EN 50081-2, EN 50082-2

BSP Connection

  • 1/2” BSP Male
  • 1/4”-19 BSP Male
  • G 1/2” Male
  • G 1/4” Male

Burst Pressure

  • 5 times Full Scale

Compensated Temperature

  • -17.8° to 76.7° C (0° to 170° F)

Electrical Connectors

  • 1/2” NPT Male Conduit Connection with 2 to 50 feet Wire Pigtail
  • 4-Pin Bendix
  • 6-Pin Bendix
  • Mini DIN 43650C Connector with Mate
  • NEMA 4X Cable Exit [24” (610 mm) Cable]
  • Pigtail Connector (2, 5, 10, 20, 30, 50 feet Wire)

Electrical Protection

  • Short Circuit Protected: up to 40 Vdc - P121A, P121B

Environmental Protection

  • IP66
  • NEMA 4X

Excitation Voltage

  • 2-15 Vdc - P121C
  • 8-38 Vdc - P121A, P121B

Insulation Resistance

  • 1,000 megaohms at 50 Vdc

Materials of Construction

  • Non-Wetted Part: 316 Stainless Steel Plus Electrical Connector

NACE & NIST

  • NIST Traceable Calibration Certificate

NPT Connection

  • 1/2” NPT Male
  • 1/4” NPT Female
  • 1/4” NPT Male
  • 1/8” NPT Female
  • 1/8” NPT Male

Operating Temperature

  • -40° to 93° C (-40° to 200° F)

Output

  • 0 to 100 mV - P121H
  • 0-5 Vdc, 3-Wire - P121B
  • 1-10 Vdc - P121M
  • 1-11 Vdc - P121L
  • 1-2 mV/V (4-Wire) - P121C
  • 1-5 Vdc - P121 G
  • 1-6 Vdc - P121F
  • 4-20 mA, 2-Wire - P121A

Power Supply Effect

  • ± 0.002 % of Full Scale Output Per V Input - P121A, P121B

Pressure Range

  • bar: -1 to 1,034
  • kPa: -101.4 to 103,421
  • psi: -14.7 to 15,000

Pressure Type

  • Absolute
  • Compound Pressure
  • Gauge
  • Vacuum

Proof Pressure

  • 2 x Full Scale

Repeatability

  • ± 0.05 % of Full Scale Output

Resolution

  • Infinite (± 0.001 % of Full Scale Output Usable)

Response Time

  • < 1 millisecond - P121C
  • < 5 milliseconds - P121A, P121B

Reverse Polarity Protection

  • Yes

RFI/EMI Protection

  • Internal Filtering - P121A, P121B

Stability

  • Long Term Stability: ± 0.25 % of Full Scale Output Per Year

Storage Temperature

  • -40° to 121° C (-40° to 250° F)

Temperature Effect

  • ± 1.5 % of Full Scale Output over Compensated Range [Combined Effects of Zero & Full Scale Output with Reference at 21° C (70° F)]

UNF/UNC Connection

  • 7/16”-20 UNF Male

Update Time

  • Warm-Up: < 10 milliseconds

Wetted Materials

  • 316 Stainless Steel
  • 632 Stainless Steel (15-5)

Zero Balance

  • ± 1 % of Full Scale Output

Documentation

Data Sheets

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