P4 Precision Dry Pressure

Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference
Precision calibrated 0.25% and 0.50% accuracy models
Standard industry leading 7-point NIST certification
LCD display option
LED status indication and Zero push button and contact closure
PATENTED DESIGN

  • 7-point NIST certificate; more accuracy points than any competitor
  • 0.25% and 0.50% accuracy versions available from 0.25" to 25" W.C.
  • Precision calibrated, temperature compensated, non-positiion-sensitive pressure element
  • Versatile duct, filter, or remote mounting; address all with a single unit with RP-6 probe addition
  • DIN mount - forward for LCD panel or sideways for panel space savings
  • 0-5VDC/10VDC or 4-20 mA loop & 3 wire powered versions
  • Conduit cover for 3/8” flex connectors
  • LED facilitates locating sensor in ductwork

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Now with NIST calibrated 0.25% and 0.50% accuracy options, the P4 dry media pressure transmitter features fixed ranges optimized for building (zone) pressure, filter measurement, and static duct applications. Innovative static probe integrates with unit or can be mounted remotely for static pressure. PATENTED DESIGN CALL FOR SPECIAL PRICING

  • Building (zone) pressure
  • Filter condition measurement
  • Duct/static OEM HVAC
  • Meets 0.25% or 0.5% accuracy specs

Power Supply

12-30VDC/24VAC(1), 30mA max

Output type

Outputs Available

4-20mA loop powered, 4-20 mA 3-wire, 0-5VDC, 0-10VDC

Fixed Ranges

Multiple Fixed Ranges (Inches of w.c. and Pascals)

0.05”w.c. up to 50”w.c. models
25 Pa up to 5000 Pa models

Operating Temperature

Operating range
Compensated range

-4 to 140F (-20 to 60ºC)
-4 to 140F (-20 to 60ºC)

Media compatibility

Dry, oil-free air, N2

Sensor Type

MEMS silicon piezoresistive; precision calibrated

Sensor Performance

Accuracy 1.00%
Accuracy 0.25%(2)
Accuracy 0.50%(2)
Zero Tolerance
Span Tolerance (3)
Zero Drift (1 year)
Auto-zero input
Thermal Shift (Zero and Span)
Overpressure
Max Static Line Pressure
Burst Pressure
Position Sensitivity

±1.00% of range
±0.25% of range; 7-point NIST calibrated
±0.50% of range; 7-point NIST calibrated
Included in accuracy specification
±1.00%
0.004”WC/year max. 0.4% for units >0.5”w.c.
Push-button and contact closure
0.02% FSO/ºC (0.01%FSO/ºF) measured from 22ºC (72ºF
up to 5” models: 41.5”w.c.; 10” models: 133”w.c.;
25” models: 332”w.c.
up to 5” models: 41.5”w.c.; 10” models: 133”w.c.; 25” models: 332”w.c.
up to 5” models: 83”w.c.; 10” models: 166”w.c.; 25” models: 415”w.c.
Non-position sensitive

Agency

Compliance

CE, RoHS

Enclosure

Flammability
Environmental

UL94 5VB
NEMA 1

(1) One side of transformer secondary is connected to signal common. Dedicated transformer is recommended.
(2) Accuracy includes non-linearity, hysteresis, and repeatability at 70ºF.
(3) Span tolerance is ±1% ±0.005inWC for models less than 0.10inWC or equivalent pressure range.

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