Description
Atlas Copco PME-1802-A-CD2
Technical Specifications
- Product type: Air compressor pressure transmitter
- Range: 0 to 16 bar
- Output: 4 to 20 mA two-wire
- Supply: DC10 to 30 V
- Accuracy: ±0.5 % FS
- Process connection: G1/4 or 1/4″ NPT
- Wetted parts: Stainless steel / ceramic
- Protection: IP65
- Operating temperature: -20 °C to +80 °C
- Storage temperature: -40 °C to +100 °C
- Humidity: 0 to 95 %, non-condensing
- Overload: 2 × range
- Vibration: IEC 60068-2-6
- Installation: Direct threaded mount
Functional Features
- Precise air compressor discharge pressure measurement
- 4 to 20 mA standard signal output
- Corrosion-resistant ceramic sensing element
- Vibration and shock resistant for compressor duty
- IP65 protection
- Good long-term stability
- Wide supply voltage
- Intrinsic-safe option available
- 2× range overload without damage
- Matched to Atlas Copco compressor controllers
Application Scenarios
- Screw air compressor discharge pressure monitoring
- Compressor inlet pressure measurement
- Compressed air system pressure protection
- Air receiver pressure monitoring
- Atlas Copco GA series compressor spare part
Materials and Construction
- Process connection: Stainless steel
- Sensing diaphragm: Alumina ceramic
- Housing: Stainless steel
- Electronics: FR4 board
- Cable: Shielded cable
- Seal: FKM O-ring
Structural Features
- Cylindrical stainless steel housing with front thread
- Ceramic diaphragm at front pressure port
- Rear cable exit
- Internal bridge and amplifier
- Waterproof cable gland
- Compact structure
Working Principle Compressed air pressure acts on the ceramic diaphragm, which deforms and changes diffused piezoresistive strain gauge resistance in a Wheatstone bridge. The amplifier converts the mV bridge signal to a 4 to 20 mA two-wire current sent to the compressor controller. The controller loads/unloads the compressor based on pressure.
Installation Requirements
- Wrap seal tape on thread and screw into air line
- Mount away from drainage point
- Tighten waterproof cable gland for IP65
- DC24 V stable supply
- Shielded signal cable
- Temperature -20 °C to +80 °C
- Calibrate zero after power-up
- Mount away from drainage outlet
Precautions
- Medium must not corrode stainless steel or ceramic
- Do not exceed range
- Correct wiring polarity
- Install isolation valve for hydraulic maintenance
- Store spares in dry environment
- Periodically calibrate pressure zero
