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HVAC Pressure Transmitters
WIKA R-1 Pressure Transmitter, -1...+45 Bar Gauge, 7/16-20UNF-2B Schrader Connection, Flying Lead 5m Cable, 2-wire, 84238685
WIKA

WIKA R-1 Pressure Transmitter, -1...+45 Bar Gauge, 7/16-20UNF-2B Schrader Connection, Flying Lead 5m Cable, 2-wire, 84238685

Mfr. part no.
84238685
SKU
PT-R1-1-45BAR-FL5-84238685

Specifications

Measuring Range -1 ... +45 Bar Gauge
Process Connection 7/16-20UNF-2B Schrader, Female Connection
Output Signal 4 ... 20 mA, 2-wire
Power Supply 7 ... 30 V DC
Electrical Connection flying lead, IP 69K
Cable Length 5 m
Accuracy 2,0 %
Approvals cULus
Non-Linearity ≤ ±0.5 % of span
Long-Term Drift ≤ ±0.3 % of span
Settling Time ≤ 5 ms
Ingress Protection Plug connection IP67, cable outlet IP69K

Key features

  • Monolithic construction without elastomer process seals for long-term leak tightness
  • Welded thin-film measuring cell for reliable pressure measurement in HVAC and refrigeration circuits
  • Stainless steel wetted parts for compatibility with common refrigerants
  • Maintenance-free design proven for very high load cycling
  • Stable measurement in variable ambient conditions with high condensation tightness
  • 4 to 20 mA two-wire output with 7 to 30 V DC supply for PLC and control integration
  • Flying lead electrical connection with IP69K protection as configured
  • cULus approval as per item configuration
  • Made in Poland.

Description

The WIKA R-1 pressure transmitter is engineered for demanding HVAC and refrigeration service where leak tightness and durability are critical. Its high-accuracy measuring cell is welded directly to the process connection to eliminate elastomer seals and support dependable operation with common refrigerants, while stainless steel wetted parts provide robust media resistance. The design is maintenance-free and field proven for very high load cycling, and the special case design supports stable performance even in harsh ambient conditions and condensation prone environments. Each item is supplied with a 4 to 20 mA two-wire output and 7 to 30 V DC power supply for easy integration into industrial control systems. This item is configured for -1 ... +45 Bar Gauge measurement, uses 7/16-20UNF-2B Schrader Female Connection, and includes a 5m flying lead cable with IP69K connection and cULus approval.

Applications

  • Refrigeration plants and chillers
  • Compressors and condenser monitoring
  • Heat pumps
  • Air-conditioning systems and HVAC skids
  • Industrial refrigeration circuits using common refrigerants

Documents

  • Datasheet-R1-84238685

    PDF, 47 KB

  • Wika R-1 — Datasheet

    PDF, 544 KB

  • Wika R-1 Operating — Instructions

    PDF, 1.2 MB

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