The Senva P4-0050-AB2XP is part of the Senva P4 Precision Series of fixed-range dry-media pressure transmitters - the high-accuracy NIST-calibrated line in the P4 family, with a 0.25% accuracy rating backed by a 7-point NIST calibration certificate (more accuracy points than any competing transmitter in the same class). It senses -0.50 to +0.50 in WC (bidirectional) and outputs a linear 0-5 VDC signal (3-wire VAC or VDC powered). Built around a MEMS silicon piezoresistive sensor with non-position-sensitive design, manual or contact-closure auto-zero, and a patented enclosure that integrates high-density DIN-rail mounting with 3/8 in conduit-ready entry - no separate adapters needed for typical commercial HVAC installs. This SKU ships with the integrated duct probe for direct in-duct installation.
WARRANTY
Key Features
7-Point NIST Calibration
Each unit is individually calibrated and certified at seven points across the range, with the certificate shipped in the box. 0.25% of-range accuracy combines non-linearity, hysteresis, and repeatability at 70 F. More documented points than any competing transmitter in this class.
MEMS Silicon Piezoresistive Sensing
Solid-state silicon sensing element with precision factory calibration. Non-position-sensitive design means the transmitter can be mounted flat, vertical, or DIN-rail without zero shift. Thermal drift is 0.02% FSO per deg C (0.01% per deg F) referenced to 72 F.
0-5 VDC Output Signal
Provides a linear 0-5 VDC output proportional to applied differential pressure. 3-wire vac or vdc powered with 12-30 VDC or 24 VAC input. Drop-in compatible with virtually any BAS, DDC, or analog control input.
Manual + Contact-Closure Auto-Zero
Front-panel pushbutton zero plus remote auto-zero via contact-closure input. Hold the ZERO SET button for 2 seconds with no pressure applied (or temporarily connect H and L ports together) to re-zero. Zero drift is <0.004 in WC per year typical.
Patented DIN-Rail and Conduit-Ready Mount
Patented enclosure design with two DIN-rail mounting orientations (back or side - side saves panel space for high-density panels), plus an integrated 3/8 in flex conduit cover - no separate fittings or adapters required for typical commercial install.
Integrated Duct Probe
Ships with the integrated static-pressure probe, designed to thread directly into the back of the enclosure for in-duct mounting. The same probe transforms for either direct duct mount or remote-probe service with the optional RP-6 6-inch remote probe (sold separately).
Technical Specifications
| Specification | Value |
|---|---|
| Model | P4-0050-AB2XP |
| Series | P4 Precision |
| Pressure Range | -0.50 to +0.50 in WC |
| Direction | Bidirectional |
| Accuracy | +/-0.25% of range, 7-point NIST calibrated |
| Output Signal | 0-5 VDC, 3-wire VAC or VDC powered |
| Supply Voltage | 12-30 VDC or 24 VAC, 30 mA max |
| Other Outputs Available (Family) | 4-20 mA loop powered, 4-20 mA 3-wire, 0-5 VDC, 0-10 VDC |
| Sensor Type | MEMS silicon piezoresistive, precision calibrated |
| Zero Function | Pushbutton + contact-closure auto-zero |
| Zero Tolerance | Included in accuracy specification |
| Span Tolerance | +/-1.00% (+/-1% +/-0.005 in WC for ranges below 0.10 in WC) |
| Zero Drift (1 year) | 0.004 in WC/year max (0.4% for units over 0.5 in WC) |
| Thermal Shift (Zero and Span) | 0.02% FSO per deg C (0.01% FSO per deg F), measured from 22 C (72 F) |
| Response Rate | 8 seconds (full scale) |
| Overpressure | 41.5 in WC |
| Max Static Line Pressure | 41.5 in WC |
| Burst Pressure | 83 in WC |
| Position Sensitivity | Non-position sensitive |
| Operating Temperature | -4 to 140 F (-20 to 60 C) |
| Compensated Temperature | -4 to 140 F (-20 to 60 C) |
| Operating Humidity | 0 to 95% RH, non-condensing |
| Media Compatibility | Dry, oil-free air or nitrogen (N2) |
| Display | None |
| Duct Probe | Integrated duct probe included |
| Enclosure Material | UL94-5VB rated, ABS |
| Enclosure Rating | NEMA 1 |
| Conduit Entry | 3/8 in flex conduit cover (integrated) |
| Tubing Connection | Hose barbs, accepts 1/8 in and 1/4 in ID tubing |
| DIN Rail Mounting | Back or side (two orientations) - patented design |
| Dimensions | 4.75 x 4.20 x 1.82 in (approx) |
| Weight | 0.20 lb |
| Compliance | CE, RoHS |
| Procurement Compliance | Buy American Act (BAA) and TAA compliant |
| Country of Origin | Made in USA - Beaverton, Oregon |
| Warranty | 7-year limited (electronics) |
| Manufacturer Part Number | P4-0050-AB2XP |
Documentation
Frequently Asked Questions
What pressure range and direction does the P4-0050-AB2XP measure?
What is included in the 7-point NIST calibration?
How do I wire the 0-5 VDC output?
Does this version have a display?
What's included for duct mounting?
How do I zero the transmitter and what media can it measure?
- Brand:
- Senva
- Series:
- P4 Precision
- Product Type:
- Dry Media Differential Pressure Transmitter
- Pressure Range:
- -0.50 to +0.50 in WC
- Range Code:
- 0050
- Direction:
- Bidirectional
- Output Signal:
- 0-5 VDC
- Output Wiring:
- 3-wire VAC or VDC powered
- Supply Voltage:
- 12-30 VDC or 24 VAC
- Accuracy:
- 0.25% (7-point NIST)
- NIST Certificate Included:
- Yes (7-point)
- Display:
- None
- Duct Probe:
- Integrated probe included
- Sensor Type:
- MEMS silicon piezoresistive
- Zero Function:
- Pushbutton + contact-closure auto-zero
- Zero Drift:
- 0.004 in WC/year max
- Thermal Shift:
- 0.02% FSO/C (0.01% FSO/F)
- Response Rate:
- 8 seconds full-scale
- Overpressure:
- 41.5 in WC
- Max Static Line Pressure:
- 41.5 in WC
- Burst Pressure:
- 83 in WC
- Position Sensitivity:
- Non-position sensitive
- Operating Temperature:
- -4 to 140 F, -20 to 60 C
- Operating Humidity:
- 0 to 95% RH non-condensing
- Media:
- Dry oil-free air, nitrogen (N2)
- Enclosure:
- UL94-5VB ABS, NEMA 1
- Tubing Accepted:
- 1/8 in and 1/4 in ID
- Conduit Entry:
- 3/8 in flex (integrated cover)
- DIN Rail Mounting:
- Back or side (patented design)
- Compliance:
- CE, RoHS
- Procurement:
- Buy American Act (BAA) and TAA Compliant
- Country of Origin:
- USA (Beaverton, Oregon)
- Warranty:
- 7-year limited
