Original Honeywell 162PC01D Pressure Sensor

Original Honeywell 162PC01D Pressure Sensor

Specs:

Brand: Honeywell
Model: 162PC01D

1. Basic Overview
The 162PC01D is a low differential pressure sensor with built-in amplification and temperature compensation from Honeywell’s 160PC series. It’s a piezoresistive silicon sensor in a SIP3 through-hole PCB package, specifically designed for measuring micro differential pressure in dry gases.

Model Meaning:
162PC = Differential pressure, amplified output; 01D = Range 1 psi (27.68 inH₂O)

2. Key Electrical & Pressure Parameters (Official Datasheet standard, 25℃, 8V supply calibrated)

Pressure Specs:
Measurement Type: Differential; can be used as gauge pressure with single-ended venting
Range: 0 ~ 1 psi (27.68 inH₂O ≈ 6894.76 Pa)
Max Overpressure: 5 psi
Burst Pressure: ≥ 20 psi
Response Time: ≤ 1 ms

Electrical Specs:
Recommended Supply: 8.0 VDC (calibration voltage)
Supply Range: 6.0 ~ 16 VDC
Quiescent Current: Typical 8 mA, Max 20 mA
Output (Ratiometric)
0 psi (Zero): 1.0 V (Range 0.95 ~ 1.05 V)
1 psi (Full Scale): 6.0 V (Range 5.90 ~ 6.10 V)
Output Load Requirement: Load resistance ≥ 3 kΩ
Output Drive Capability: Max 10 mA; supports short-circuit protection to ground
Common Ground: Power negative and signal output share ground

Accuracy & Temperature Coefficient:
Total Error (includes non-linearity, hysteresis, repeatability): ±1% FS
Compensated Temperature Range: -18℃ ~ 63℃
Operating Temperature: -40℃ ~ 85℃
Storage Temperature: -55℃ ~ 125℃
Long-term Stability: ±0.5% FS/year

3. Important Medium Limitations (⚠️ Critical)
P1 Port: Dry gases only, no liquids allowed
P2 Port Wet Materials: Silicon diaphragm, borosilicate glass, epoxy, polyester housing
❌ Corrosive gases, water vapor, or liquids must not enter P1; suitable only for clean dry air, nitrogen, or other inert dry gases

4. Mechanical Structure
Package: SIP-3 through-hole PCB
Pressure Port: Dual axial hose barb, 5 mm (0.2 inch) outer diameter, no barbs, tower-shaped
Pins: 3Pin (VCC / OUT / GND)
Size: Plastic body, pins and gas ports on opposite sides of the device
Weight: About 28 g

5. Typical Applications
HVAC fan differential pressure, filter blockage monitoring
Ventilators, medical equipment airflow differential pressure detection
Pneumatic control systems low-pressure monitoring
Chassis and cabinet air pressure measurement
Combustion equipment air differential pressure

6. Important Usage Notes
Ratiometric Output Feature:
Output voltage is proportional to supply voltage.
Example: If supply voltage is changed to 12V → Zero ≈ 1.5V, Full Scale ≈ 9V; recommended stable 8V supply for 1~6V standard output.

Ensure load ≥ 3kΩ; typically fine for MCU high-impedance ADC; cannot drive low-resistance load directly.
Avoid strong shocks and vibration during installation; pressurize gas lines slowly to prevent membrane damage.
Absolutely no liquids inside the sensor cavity.