Explosion-Proof I/P Transducer

The Type-595XP Explosion proof I/P (current to pressure) transducer converts a 4–20mA electrical current signal to a proportionally linear pneumatic output. The unique conversion technology utilising open loop control, provides a high level of accuracy and repeatability for the operation of actuated valves. A low mass control circuit provides consistent output in high vibration applications.

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The Type-595XP Explosion proof I/P (current to pressure) transducer converts a 4–20mA electrical current signal to a proportionally linear pneumatic output. The unique conversion technology utilising open loop control provides a high level of accuracy and repeatability for the operation of actuated valves. A low mass control circuit provides consistent output in high vibration applications.

This compact unit is housed in an explosion proof enclosure that is designed for pipe, bracket or direct manifold mounting. This explosion-proof and intrinsically safe field device is available with an integral volume booster or as a low-flow signal converter that directly mounts to a pneumatic valve positioner.

Multiple choices for wiring and porting simplify the installation and reduce the time required to do so. In addition to standard wall, panel or pipe mounting, optional DIN rail and manifold mounting kits are also available. The Type-925 Multifunction manifold provides a common supply port and individual shutoff valves for sets of 3, 5, 10 or 15 units.

 

 

Specifications

Functional Specifications

Performance Specifications Physical Specifications

P Connection (with Flow Booster) M & N Connection (without Flow Booster)
Inputs
4-20 mA
4-20 mA
Outputs
3-15 psig 0.20-1.0 BAR
3-27 psig 0.20-1.8 BAR
6-30 psig 0.40-2.0 BAR
3-15 psig 0.20-1.0 BAR
3-27 psig 0.20-1.8 BAR
6-30 psig 0.40-2.0 BAR
Air Consumption 0.1 scfm (0.17m3/hr) 2.00 scfh (0.06 m3/hr) @
20 psig supply (1.4 BAR)4.94 scfh (0.14 m3/hr) @
85 psig supply (6.0 BAR)8.36 scfh (0.24 m3/hr) @150 psig supply (10.0 BAR)
Supply Pressure
Note: Supply pressure must be a minimum of 5 psig (0.3 BAR) above maximum output
3-15: 22 psig
(1.5 BAR) max
3-27, 6-30: 42 psig
(2.8 BAR) max
150 psig (10.0 BAR) max.
Flow Capacity 2.4 scfm (4.1 m3/hr)max. Same as Air Consumption
Temperature Limits -40°F to 158°F (-40°C to 70°C)

Low Temp (L) Option: -67°F to 158°F (-55°C to 70°C)

 -40°F to 158°F (-40°C to 70°C)

Low Temp (L) Option: -67°F to 158°F (-55°C to 70°C)
Relative Humidity 75% average – 95% short time non-condensing 75% average – 95% short time non-condensing
Impedance 260 Ohms @ 70°F 260 Ohms @ 70°F
Loop Load 5.2 Volts @ 70°F 5.2 Volts @ 70°F

Performance Specifications

Linearity (Independent) <± 0.5% of span
Hysteresis <±0.3% of span
Deadband <±0.1% of span
Repeatability <±0.3% of span; ±0.15% of span typical
Mounting Orientation Effect <±0.5% / 90 degree change
Air Supply Sensitivity <.3% / 1.5 (0.10 BAR) psig change <±0.6% / 25 (1.72 BAR) psig change
Vibration Effect <±1% up to 10g
and 20-80 Hz
Temperature Effect <±0.75% / 10°F (5.6°C) change

Physical Specifications

Housing NEMA 4X (IP 65)
Port Sizes
Pneumatic: 1/4″ NPT (P & N versions);
1/16″ manifold mount (M version)
1/8″ NPT Gauge Port (P version)
Electric: 1/2″ NPT, M20-1.5 (ATEX)
Media Clean, dry, oil-free, instrument air, filtered to 40 micron
Electrical Connections Terminal block
Mounting Direct (standard) or 2″ pipe (optional)
Mounting

 

 

 Housing: Chromate-treated aluminum with epoxy paint. NEMA 4X (IP65)

Elastomers: Buna-N

Trim: Stainless steel; brass; zinc-plated steel
Weight P version=1.40 lbs (0.64 kg) N version=1.25 lbs (0.57 kg)
M version=1.20 lbs (0.54 kg)

 

Applications

A low mass control circuit in compact housed unit provides consistent output in high vibration applications and is used in hazardous areas.

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