Compact Explosion-Proof I/P Transducer

Explosion proof compact I/P transducer delivers reliable performance in hazardous areas. Internal electronic feedback system maintains accurate control of output pressure.

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The compact explosion proof I/P transducer that delivers reliable high performance for the toughest applications in the most hazardous environments. It converts an electrical current signal to a stable pneumatic output to actuate valves. Its IP66 housing is designed for both Intrinsically Safe and Explosion-Proof operation. Advanced circuitry includes electronic feedback control for superior vibration protection and highly accurate output. With flow rates up to 12 SCFM (20m3/hr), the 950XP has the muscle to drive large valves and actuators. Because it takes impure air in stride, downtime is reduced, too.

Because of its flexibility, its small footprint can fit into tight spots. Its standard mounting bracket lets you mount it directly on a valve, wall, panel, or pipe. Optional field-selectable process output ranges reduce downtime and inventory. Since this transducer is position insensitive, it gives even more freedom in mounting and connecting to valves and instruments. As a result of the flexibility, installation goes faster. Easy access Zero and Span adjustments make bench or field calibration quick and easy. For operating versatility, direct, reverse, and split range modes can be chosen.

 

Specifications

Functional Specifications

Input 4-20 mA
Output 3-15 psig 0.20-1.00 BAR
3-27 psig 0.20-1.80 BAR
6-30 psig 0.40-2.00 BAR
Air Consumption 3.0 scfh (0.11 m3/hr) at mid range
Supply Pressure 100 psig (7.0 BAR) maximum

Note: Supply pressure must be a minimum of 5 psig above maximum output
Flow Capacity 4.5 SCFM (7.6 m3/hr) at 25 psig
(1.7 BAR) supply
12 SCFM (20.0m3/hr) at 100 psig
(7.0 BAR) supply
Temperature Limit OPERATING: -40° to + 158°F (-40° to + 70°C)
STORAGE: -40° to + 200°F (-40° to + 93°C)
Loop Load, I/P Transducer 9.5 VDC @ 20 mA (500 Ohms resistance)
Impedance 260 Ohms @ 70°F
Operating Modes direct, reverse or split range

Performance Specifications

Accuracy,
Hysteresis, and
Repeatability		 ± 0.10% of span
Deadband 0.02% of span
Position Effect No noticeable effect
Vibration Effect Less than ±1.0% of span under the following conditions: 5-15 Hz @ 0.8 in., constant displacement; 15-500 Hz @ 10g’s
Supply Pressure Effect No noticeable effect
Temperature Effect ±0.045%/°F (0.07%/°C) of span
Reverse Polarity Effect No damage from reversal of normal supply current
(4-20 mA) or from misapplication of up to 60 mA
RFI-EMI Effect Less than .5% of span change in output pressure per En61000-4-3: 1998, Amendment 1, Performance Criterion A

Physical Specifications

Port Sizes Pneumatic 1/4″ NPT
Electric 1/2″ NPT
Media Clean, dry, oil-free, air filtered to 40 micron

Sweet natural gas or methane filtered to 40 micron when purchased with the (E) option.
Mounting Direct wall, panel, or 2″ pipe (optional)
Materials Housing: Chromate-treated aluminum with epoxy baked paint. NEMA 4X (IP66)

Elastomers: Buna-N

Trim: Stainless steel; Brass; Zinc-plated steel
Weight 1.8 lbs (.82kg)

Applications

A compact I/P transducer delivers reliable high performance for the toughest applications in the most hazardous environments.

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