Bently Nevada 165855-14 | Cylinder Pressure Transducer

The Bently Nevada 165855 Cylinder Pressure Transducer is designed to measure the cyclic absolute pressure changes inside a reciprocating compressor cylinder. It plays a critical role in a Reciprocating Compressor Condition Monitoring system, especially when used alongside the 3500/77M Cylinder Pressure Monitor and System 1 Plant Asset Management Software.

Key Features:

Reliable Performance – The transducer features a design that withstands harsh chemical environments. Additionally, it continues to provide accurate readings even after continual cycling over large pressure gradients.
Overpressure Protection – In over-pressure situations, the transducer protects itself and returns to normal operation once the pressure stabilizes.
Robust Design – With its C-276 alloy and 316L stainless steel construction, the transducer’s wetted surface ensures durability when installed into an isolation valve or pressure indicator port. It also meets NEMA 4X and IP67 standards for moisture protection.
Thermal Compensation – The transducer comes with pressure-temperature compensation data, which helps to optimize accuracy by minimizing the temperature effects on the readings.

Specifications:

Measurement Range:
- 0 to 100/250/500/1000/2500/5000/10,000 psia
- 0 to 6.8/17/34.5/69/172/345/689 bar
Proof Pressure: 1.5X Full Scale
Burst Pressure: 3X Full Scale (2X for 689 bar / 10,000 psia units)
Full Scale Output: 10 ± 0.3 Vdc
Zero Output: 0.5 ± 0.1 Vdc
Power Supply: 18 to 30 Vdc
Max Current: < 15 mA
Operating Temperature:
- Electronics: -40 to 85 °C (-40 to 185 °F)
- Sensor Head: -40 to 150 °C (-40 to 302 °F)
Compensated Temperature Range: -40 to 85 °C
Thermal Zero Shift:
- -1.0 to +2.0 %FS for 6.8 and 17 bar / 100 and 250 psia
- -0.5 to +1.5 %FS for other ranges
Linearity, Hysteresis, Repeatability: ≤ ±0.3 %FS
Frequency Response: 0 Hz to 5500 Hz ±1 dB
Humidity: 95% condensing (excludes connector)
Materials:
- Gold-plated per MIL-G-45204 Type III
- C-276 welded to 316L stainless steel body

Physical & Environmental Characteristics:

Weight: 250 g (0.55 lb)
Sensor Head: 150 g (0.33 lb)
Dimensions: See diagram
O-ring Material: Compatible with Hifluor or Ethylene Propylene
- Hifluor: -26°C to 150°C (-15°F to 302°F)
- Ethylene Propylene: -40°C to 150°C (-40°F to 302°F)

Ordering Information:

Model: 165855 Cylinder Pressure Transducer

Pressure Range Option (A):
- 1 4: 0 to 69 bar (0 to 1,000 psia) with armor

Notes:

The transducer diaphragm may become damaged upon contact with foreign objects, so extra care should be taken during handling and installation.
The O-ring must be adequately lubricated with Parker Super-O-Lube prior to installation.
Using an isolation valve alongside the transducer is highly recommended.

4o mini