P400 Pressure Sensors
Connect directly to any XR440, XR450 or XR5-SE data logger; no external power required.
P400-D-2-inch Pressure Sensor (±2 inches H2O)
Applications include Lab/Clean Room Pressurization, Filter Pressure, Fan Static Pressure.
Compatible pressure media: dry air and inert gases: nitrogen, helium, neon, argon, krypton, xenon.
- Pressure range as low as ± 2 inch H2O
- Miniature Size
- High Accuracy
- Low Power
P400 Specifications
| Combined Linearity, Hysteresis & Repeatability: | ±0.25% of Span |
| Resolution: | See table below |
| Operating Temperature Range: | ±2 inch H2O range: -10 to 85°C (14 to 185°F) Psi ranges: -25 to 90°C (-13 to 194°F) |
| Compensated Temperature Range: | ±2 inch H2O range: 0 to 60°C (32 to 140°F) Psi ranges: -10 to 85°C (-4 to 185°F) |
| Total Error Band over compensated temperature range | ±2 inch H20 Range: 2% of Span Psi ranges: 1% of Span |
| Supply Voltage | 4.75 to 5.25 Vdc |
| Power requirement: | 3.5 ma at 5 Vdc (supplied by Pace data logger) |
| Output signal | 0.5 to 4.5 Vdc at 5Vdc supply voltage. Output is ratiometric to supply voltage. |
| Wiring: | White: E terminal of Pace logger (Power) Green: Analog Input of Pace Logger (Signal) Black: "C" terminal of Pace logger (Ground) |
| Burst Pressure: | See table of available models (below). |
| Weight: | 0.3 oz. (8 grams) |
| Physical: | Epoxy encapsulated thermoplastic housing with three twisted leads, 18" length. |
| Pressure Ports: | Ports accept 3/32" I.D. tubing (or 2.4 mm I.D. tubing). Accepts 1/8" I.D. tubing (or 3.2 mm I.D. tubing) with included adapter kit (details below). |
| Suggested mounting methods: | Use cable tie or Velcro® straps to secure pressure hoses near sensor housing. Optional mounting base (see below) |
| Overall Size: | 0.9" x 0.6" x 0.75" (23mm x 15mm x 19mm) |
Included Adapters
Allows pressure connections to commonly available 1/8" I.D. tubing. Consists of two 8" lengths of 3/23 I.D. tubing and two 3/32" I.D. to 1/8" I.D. nylon adapter fittings. Adapters included with each P400 Pressure Sensor.
Measurement Resolution
| P400 inch H2O range | Resolution | Units |
| ± 2 inch H2O Differential (or 0-2 inch H2O Gauge) | 0.0012 | in. H2O |
| P400 PSI ranges | Resolution | Units |
± 1 psi Differential (or 0-1 psi Gauge) Alternate scaling: ±27.7 inch H2O |
0.0006 0.017 |
psi inch H2O |
| ± 15 psi Differential (or 0-15 psi Gauge) | 0.009 | psi |
| ± 30 psi Differential (or 0-30 psi Gauge) | 0.018 | psi |
| 0-15 psi Absolute | 0.005 | psi |
P400 Pressure Sensors - Available Models
| Part No. | Range | Burst Press. |
| P400-D-2-inch | ± 2 inch H2O | 10 psi |
| P400-D-1-psi | ± 1 psi ± 27.7 inch H2O |
20 psi |
| P400-D-15-psi | ± 15 psi | 45 psi |
| P400-D-30-psi | ± 30 psi | 90 psi |
| P400-A-15-psi | 0 - 15 PSIA | 90 psi |
Price: P400 (any range): $180.
Use any Pressure Scale
P400 Sensors can be read in any pressure unit (psi, kPa, bar, etc.); see XR440 / XR450 Pressure Converter or XR5 Pressure Converter.
Differential / Gage Pressure
Models with "D" in part number can read Gage or Differential pressure.
To read Gage pressure, connect center port to pressure and leave remaining port unconnected (exposed to ambient pressure).
Differential Pressure readings will read as positive pressure when the center port has the higher pressure of the two ports.
Extension cable
The 18 inch leads on all P400 Pressure Sensors may be extended up to 100 FT (30 meters) by the user using three conductor 22 or 24 gage cable. In electrically noisy environments we recommend using shielded cable.
Mounting Suggestions
Because the P400 is small and light, it can be held in place by fixing the signal cable and pressure tubing with a cable tie or hook and loop straps about an inch or so from the pressure ports. A mounting base is also available (below).
Accessories
Optional Mounting Base
Sensor press fits into base. Neoprene rubber pads grip sensor securely. Base has two 0.184 dia mounting holes spaced 1.375 inches center to center. Maximum temperature rating of base: 75°C (167°F)
Part Nbr: MB-4500 Price: $12.00
Compatible tubing
Commonly available 1/8" I.D. or 3.2 mm I.D. plastic tubing is compatible with the P400 using the included tubing adapters.
Tubing stocked at Pace
Clear 3/32" I.D. tubing connects directly to all P350, P400, P450 and P600 Sensors. Temperature range -40°C to 74°C (-40°F to 165°F). 5/32" (4 mm) O.D., minimum bend radius 3/8" (10 mm). Maximum pressure 43 PSI. Available in 25 FT (7.6 meter) rolls.
Part Nbr: T-332-25FT Price: $10.00 25 ft (7.6 meter) roll
Multi-channel Pressure Data Logging
