• Three-diaphragm design minimizes calibration shift with static pressure changes in velocity pressure applications.
• Not sensitive to normal supply air variations.
• Continuous static, total, velocity, or differential pressure indication available by using differential pressure gage.Static Pressure Sensor, Direct or Reverse Acting| Application Type | Static Pressure |
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| Overview | One-pipe, direct-or reverse-acting pressure sensor used with RP908/RP920 Controllers to provide control of duct static, velocity, or differential pressure in airflow applications. Replacement devices available for Johnson, Powers, Robertshaw, Barber-Colma |
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| Setpoint Range (in. wc) | 0 in. wc. to 7 in. wc. (Adjustable) |
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| Setpoint Range (kPa) | 0 kPa to 1.7 kPa (Adjustable) |
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| Connections | Push-on barb for 1/4 in (6 mm) Diameter tubing |
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| Action | Can be set for Direct Acting or Reverse Acting |
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| Mainline Air Pressure (max.) (psi) | 25 psi |
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| Output Pressure Range (psi) | 3 psi to 15 psi |
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| Pressure Range (psi) | 2 in. wc |
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| Output Pressure Range (kPa) | 21 kPa to 103 kPa |
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| Mainline Air Pressure (max.) (kPa) | 175 kPa |
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| Pressure Range (kPa) | 0.5 kPa |
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| Mainline Air Pressure (min.) (kPa) | 112 kPa |
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| Span (Non-Adjustable) (in. wc) | 2 in. wc. |
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| Span (Non-Adjustable) (kPa) | 0.5 kPa |
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| Mainline Air Pressure (min) (psi) | 16 psi |
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| Maximum Safe Static Pressure (in. wc) | 28 in. wc |
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| Maximum Safe Static Pressure (kPa) | 7 kPa |
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| Maximum Safe Operating Pressure (psi) | 25 psi |
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| Airflow Usage | 0.021 cfm (9.9 ml/s) |
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| Maximum Safe Operating Pressure (kPa) | 172 kPa |
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| Comments | The setpoint determines the midpoint of the span. |
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| Temperature Range (F) | 40 F to 120 F |
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| Temperature Range (C) | 4 C to 50 C |
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| Dimensions (in.) | 8 in high, 9 in wide, 4 1/8 in deep |
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| Dimensions (mm) | 203 mm high, 228 mm wide, 105 mm deep |
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Product Family
Cross Reference
| Honeywell, Inc. | PP905B1008 |
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| Siemens Building Technologies | 141-0593 |
| Comment | Low Diff. Pressure Transmitter |
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| Manufacturer Suggested Replacements |
| Honeywell, Inc. | PP905B1008 |
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| Siemens Building Technologies | 141-0593 |
| Comment | Low Diff. Pressure Transmitter |
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| Manufacturer Suggested Replacements |
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