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PTP
Pressure to Analog / Current Output Transducer
- Converts pneumatic pressure to analog output: PTP modules convert 3-15 psig or 3-30 psig pneumatic signals into proportional voltage or current outputs.
- Selectable output ranges: Jumper-selectable outputs include 1-5 VDC, 2-10 VDC, 3-15 VDC, and 4-20 mA for flexible controller integration.
- Ideal for automation upgrades: Useful for building automation, process control, pneumatic system monitoring, and pneumatic-to-analog signal conversion.
- Optional local pressure indication: Gauge models include a 0-30 psig gauge option for quick visual confirmation of branch pressure.
- Reliable signal accuracy: Provides 2% full-scale accuracy at room temperature and 3% full-scale accuracy across the operating temperature range.
- Built-in pneumatic filtering: Furnished with an integral-in-barb 80-100 micron filter to help protect the pneumatic input path.
- Panel-friendly installation: Compact snaptrack design, removable brass barbed fitting, and 90° pluggable screw terminals simplify wiring and tubing.
- Backed by ACI quality: RoHS2 and WEEE compliant, with ACI’s two-year limited warranty.
Product Overview
- Accuracy Detail Output Analog Accuracy: 2% full scale at room temperature
- Applications Building and Maintenance, Pneumatic Systems, Process Automation and Control
- Approvals RoHS2, WEEE
- Electrical Connection Screw Terminal
- Filter Furnished with integral-in-barb 80-100 micron lter (Part # PN004)
- Height 2.95 in
- Input Note Input Pressure Range: PTP 3-15: 3 to 15 psig
- Input Type Pressure
- Length 3.25 in
- Materials PVC
- Operating Humidity 10 to 95% RH, non-condensing
- Operating Temperature, Max 120 °F
- Operating Temperature, Min 35 °F
- Output Configurations 1 to 5 V, 2 to 10 V, 3 to 15 V, 4 to 20 mA
- Output Note Output Signal Range (@ Impedance): 1-5 VDC @ 250Ω
- Pressure Note Gauge Pressure Range (Gauge Models): 0-30 psig (0-200 kPa)
- Series ID PTP
- Storage Temperature, Max 150 °F
- Storage Temperature, Min -20 °F
- Supply Current 50 mA
- Supply Voltage 24 Vac/Vdc
- Tightening Torque 0.5 Nm (Minimum); 0.6 Nm (Maximum)
- Tube Size 1/4 in OD x 1/8 in ID
- Voltage Output 1-5V, 2-10V, 3-15V, 4-20mA
- Weight 0.377 lb
- Width 2.18 in
- Wire Gauge 26 to 16 AWG
Supported Applications
The ACI PTP Series functions as a pressure transducer that accepts pneumatic pressure inputs and converts them to proportional analog output signals. The series is designed for applications requiring the translation of air line pressures into electrical control or monitoring signals.
- Pneumatic input ranges: 3 to 15 psig (PTP 3-15) or 3 to 30 psig (PTP 3-30).
- Local mechanical indication via an optional gauge installed in the manifold port.
Operating Conditions & Performance
The PTP Series operates within specific environmental and electrical parameters defined by its specifications. Accuracy is rated at 2% full scale at room temperature and 3% full scale across the operating temperature range. The unit requires a power supply of 24 VDC or 24 VAC, -6%/+10%, with a maximum supply current of 50 mA @ 24 VDC.
- Operating Temperature Range: 35 to 120°F (1.7 to 48.9°C).
- Storage Temperature: -20 to 150°F (-28.9 to 65.5°C).
- Humidity Rating: 10 to 95% non-condensing.
Pneumatic and Electrical Specifications
The transducer features a removable brass barbed fitting in a machined aluminum manifold for pneumatic connections, compatible with 1/4" O.D. nominal (1/8" I.D.) polyethylene tubing. An integral-in-barb 80-100 micron filter is furnished to protect the sensor.
Configuration Options
The series offers configurable output signals and optional mechanical indicators to suit specific control system requirements. Output ranges are jumper shunt selectable from four standard analog options:
- 1-5 VDC @ 250Ω
- 2-10 VDC @ 500Ω
- 3-15 VDC @ 750Ω
- 4-20 mA @ 500Ω
Electrical connections utilize 90° Pluggable Screw Terminal Blocks supporting wire sizes from 16 (1.31 mm²) to 26 AWG (0.129 mm²). The terminal block torque rating is specified as 0.5 Nm (Minimum); 0.6 Nm (Maximum).
Optional Features and Accessories
- Gauge Option: A plugged gauge port accepts a miniature 1/8" FNPT back-ported pressure gauge for local indication of branch line pressure. The optional gauge range is 0 to 30 psi with an accuracy of ± 2.5% Midscale (± 3.5% Full Scale).
- Custom Calibration: Available upon request.
- DIN Rail Adapter Kit: Model A/DRC 3.88 X 2.18 for mounting flexibility.
- Transient Voltage Suppressor: Bi-directional, 56 VAC/DC, 1500W (Part # 142583) recommended when sharing power with inductive loads.
Key Product Differences
The PTP Series is available in two primary input configurations: the standard models without a gauge and variants designated with a "G" suffix that include an installed 0 to 30 psi gauge. The physical dimensions differ based on this configuration:
- No Gauge Dimensions: (L) 3.25" (W) 2.18" (H) 1.87" (82.55 x 55.37 x 47.49 mm); Weight: 0.28 lbs. (0.1276 Kg).
- With Gauge Dimensions: (L) 3.25" (W) 2.18" (H) 2.95" (82.55 x 55.37 x 74.93 mm); Weight: 0.37 lbs. (0.170 Kg).
The snaptrack material is Polyvinyl Chloride (PVC) with a UL94 V-0 flammability rating. Agency approvals include RoHS2 and WEEE.
