Description
- Model: 16147-51-02
- Brand: Moore Products (Siemens)
- Series: 16147 P/E Converter Series
- Core Function: Converts pneumatic pressure signals to proportional electrical currents
- Product Type: P/E Transducer / Converter
- Key Specs: 3–15 psi Input | 4–20 mA Output | Two-wire Loop Powered
- Input Range: 3 to 15 psi (Standard pneumatic signal)
- Output Range: 4 to 20 mA DC
- Accuracy: ±0.25% of span
- Supply Voltage: 12 to 42 V DC (Loop powered)
- Input Media: Clean, dry, oil-free instrument air
- Maximum Input Pressure: 30 psi (Overpressure limit)
- Temperature Effect: < 0.01% per degree F
- Enclosure: NEMA 4 / IP65 rated housing
- Mounting: Surface or Pipe mount options
- Pneumatic Connection: 1/8″ NPT female
MOORE 16147-51-2
Application Scenarios & Pain Points
Engineering Pain Points: The biggest headache with the 16147-51-02 is Instrument Air Quality. If your plant’s air dryers aren’t maintained, moisture or oil will migrate into the converter’s internal bellows. Over time, this causes “sticky” readings where the 4–20 mA signal lags behind the actual pressure changes. As an integrator, when you see an analog input drifting on your HMI, don’t just recalibrate the software—check the pneumatic lines for “gunk” first.
Typical Application Scenarios:
- Retrofit Projects Connecting 40-year-old pneumatic field transmitters to a new Siemens PCS7 or Allen-Bradley ControlLogix system without replacing miles of copper tubing.
- Remote Reservoir Level Monitoring Converting pneumatic bubbler-style level measurements into an electronic signal for long-distance telemetry.
- Pulp & Paper Mills Interfacing pneumatic basis-weight or moisture sensors with electronic quality control systems.
- Boiler Control Systems Converting old pneumatic feedwater or fuel-flow signals for digital combustion monitoring.
The “Ghost in the Tubing” Case Study
Background: A textile plant in North Carolina was experiencing random “High Pressure” alarms on their main steam header, even though the manual gauges showed normal operation.
Problem: The Moore 16147-51-02 was located in a cabinet near a vibrating steam line. The 1/8″ NPT connection had developed a hairline fracture in the brass fitting. During high vibrations, the fitting would leak, causing the pressure at the converter to drop, which the electronics interpreted as a signal shift.
Solution: We replaced the faulty fitting and the 16147-51-02 unit with a fresh spare. We also added a small length of flexible tubing to isolate the module from the hard-piped vibration.
Result: The “Ghost Alarms” vanished. The plant manager realized that while the electronics are solid, the “P” side of a P/E converter is subject to mechanical failure that no software filter can fix.
MOORE 16147-51-2
Compatible Replacement Models
| Original Model | Related/Replacement | Compatibility | Difference |
| 16147-51-02 | 16147-51-01 | ⚠️ Hardware Compatible | Difference in mounting bracket or enclosure rating |
| 16147-51-02 | Siemens SIPART PS2 | ❌ Incompatible | SIPART is a positioner, not a simple P/E converter |
| 16147-51-02 | Moore 16148 | ✅ Direct Replace | Later model with improved electronics; check pinouts |
Integrator’s Tip: If you’re struggling to find Moore parts, look for ABB TEIP11 or Emerson/Fisher i2P units as functional alternatives. However, the 16147 is legendary for its small footprint—switching brands often requires re-drilling your mounting plates or re-plumbing your air lines.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Related Part | Action |
| Output stuck at 4mA | No air pressure | ❌ Field | Check the 3-15 psi supply line for blockages |
| Output >20mA (Off scale) | High loop resistance | ❌ Wiring | Check your 24V DC loop power supply voltage |
| Non-linear response | Contaminated bellows | ✅ 16147-51-02 | Inspect the input port for oil/moisture residue |
| Drifting Signal | Temperature swing | ⚠️ Medium | Ensure the unit isn’t mounted directly to a hot pipe |
Field Note: …If you’re calibrating these, remember that “3 psi” equals “4 mA” and “15 psi” equals “20 mA.” I’ve seen rookies try to calibrate them to 0 psi, which just makes the electronics go into a “Bad Quality” state. Use a precision pneumatic hand pump and a Fluke 789 to get your Zero and Span points exactly right.
MOORE 16147-51-2
Strategic Quality Assurance (Our SOP)
- Pneumatic Leak Test: We pressurize the input to 20 psi and hold it for 10 minutes to ensure the internal bellows are airtight.
- Linearity Sweep: We test the output at 3, 6, 9, 12, and 15 psi to ensure the mA output is linear within 0.25%.
- Loop Load Test: We verify the module can drive a full 4–20 mA signal into a 600-ohm load at 24 V DC.
- Physical Inspection: Verified for clean NPT threads and secure terminal screws.
Other Parts in Stock:
- Moore 353 (Process Automation Controller)
- ABB PM866K01
- Honeywell CC-PAIH01
- Bently Nevada 3500/22M
- Triconex 3721
- Emerson KJ3203X1-BA1
- newplcdcs
- Siemens 6DD1682-0CH0
