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Johnson Controls P399 Electronic Pressure Transducer

Electronic Pressure Transducer
P399

The P399 Series Electronic Pressure Transducer is a compact, economical, rugged, direct-mount pressure transducer designed to produce a low voltage analog signal (0.5 to 4.5 VDC nominal ) based on the sensed pressure. They are designed for use in commercial refrigeration and airconditioning applications. The P399 Transducer features welded stainless steel construction with environmentally sealed electronics. They are resistant to the effects of wide temperature swings, high humidity, condensation, and icing. They are suitable for use with all noncorrosive refrigerants as well as ammonia. P399 Transducers are available in several pressure ranges (up to 750 psis), covering most common refrigeration and air conditioning applications.

Pressure connections are available in one of two standard styles:
• 1/4 in. SAE female flare fitting (with Schrader valve depressor)
• 1/8 in. NPT male fitting The wiring harness is purchased separately or included with the P399xxx-1-200C.

• affordable
• rugged stainless steel construction provides a durable assembly and eliminates potential refrigerant loss due to O-ring failures - resists Electromagnetic Interference (EMI) and damage due to shock, vibration, and pressure pulsations
• environmentally sealed electronics withstand the effects of adverse conditions found in typical equipment rooms
• reliable, repeatable performance and long operating life minimizes service and replacement costs
• available in several pressure ranges (up to 750 psis) to provide a single line of transducers for all refrigeration and air conditioning application needs

Select a link under the "item" tab below to order.

Cat #Descriptions
P399AAA-1CPressure Transducer, 0-100 psis, 1/8 in. NPTM pressure connection
P399AAC-1CPressure Transducer, 0-100 psis, 1/4 in. SAE female flare pressure connection with valve depressor
P399BAA-1CPressure Transducer, 0-500 psis, 1/8 in. NPTM pressure connection
P399BAC-1CPressure Transducer, 0-500 psis, 1/4 in. SAE female flare pressure connection with valve depressor
P399CAA-1CPressure Transducer, 0-750 psis, 1/8 in. NPTM pressure connection
P399CAC-1CPressure Transducer, 0-750 psis, 1/4 in. SAE female flare pressure connection with valve depressor
P399GAA-1C1Pressure Transducer, 0-200 psis, 1/8 in. NPTM pressure connection
P399AAA-1-200CPressure Transducer, 0-100 psis, 1/8 in. NPTM pressure connection, with 6-1/2 ft (2m) wire harness with pigtails
P399AAC-1-200CPressure Transducer, 0-100 psis, 1/4 in. SAE female flare pressure connection with valve depressor, with 6-1/2 ft (2m) wire harness with pigtails
P399BAA-1-200CPressure Transducer, 0-500 psis, 1/8 in. NPTM pressure connection, with 6-1/2 ft (2m) wire harness with pigtails
P399BAC-1-200CPressure Transducer, 0-500 psis, 1/4 in. SAE female flare pressure connection with valve depressor, with 6-1/2 ft (2m) wire harness with pigtails
P399CAA-1-200CPressure Transducer, 0-750 psis, 1/8 in. NPTM pressure connection, with 6-1/2 ft (2m) wire harness with pigtails
P399CAC-1-200CPressure Transducer, 0-750 psis, 1/4 in. SAE female flare pressure connection with valve depressor, with 6-1/2 ft (2m) wire harness with pigtails
Overpressure: 3x upper range limit, short term
Burst Pressure: 5x upper range limit
Vacuum: 30 microns max (0.03 mm Hg) short term
Media Compatibility: Noncorrosive refrigerants, refrigeration lubricating oils, ammonia
Supply Voltage: 5.00 ± 0.25 VDC ratiometric range, 6.0 VDC maximum
Current Draw: 5 mA maximum @ 5.0 VDC
Output Signal: Ratiometric, 10% to 90% of supply voltage (0.5 to 4.5 VDC nominal)
Pressure Connections: 1/8 in. NPT male, direct mount
1/4 in. SAE female flare with Schrader valve depressor, direct mount
Temperature and Humidity: Storage -40 to 257oF (-40 to 125oC)
Ambient -40 to 158oF (-40 to 70oC)
Refrigerant -40 to 300oF (-40 to 149oC); 0 to 100% RH
Accuracy: ±1.5% Span, -4 to 212oF (-20 to 70oC)
±2.0% Span, -40 to -4oF (-40 to -20oC)
Materials:
Connector Nylon, 30% glass filled
Main Body Stainless steel all welded construction (304L)
Vibration: 10G, 20-2000 Hz maximum


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