Description
Overview
The Type 900X Miniature I/P and E/P Transducer is a compact electronic pressure regulator that converts a current or voltage input signal into a proportional pneumatic output pressure. Closed-loop pressure feedback continuously compares the output with the command signal and automatically corrects deviations to maintain precise, stable control.
A protected bimorph piezo actuator controls pilot pressure to an integral volume booster. The resulting output pressure is measured by an internal sensor and returned to the electronic feedback circuit, helping minimize the effects of vibration, mounting position, temperature, and supply pressure changes.
The Type 900X is available with standard, low-output, and high-output pressure ranges, including zero-based outputs as low as 0-5 psig and high-pressure outputs up to 2-100 psig. Its compact housing, low air consumption, flexible electrical connections, and multiple mounting options make it well suited for demanding industrial automation and process-control applications.
Key Features
- Closed-loop electronic pressure feedback
- Converts current or voltage signals to proportional pneumatic pressure
- Available as an I/P or E/P transducer
- Accuracy, hysteresis, and repeatability of ±0.10% of span
- Self-correcting output minimizes process variations
- No measurable mounting-position effect
- No measurable supply-pressure effect
- Compact design for high-density installations
- Integral volume booster provides high flow capacity
- Input and output ports on the front and back
- Conduit, terminal block, DIN 43650, or M12 electrical connections
- 1/4″ NPT or optional 1/4″ BSP pneumatic porting
- Field-selectable output option for selected ranges
- Field-reversible operation
- RFI/EMI protection
- FM and CSA approvals standard on qualifying 4-20 mA models
- Optional ATEX approval
Performance Characteristics
- Input Signals: 4-20 mA, 0-5 VDC, 1-5 VDC, 1-9 VDC, and 0-10 VDC
- Standard Output Ranges: 1-17 psig, 3-15 psig, 3-27 psig, and 6-30 psig
- Low-Output Ranges: 0-5 psig, 0-15 psig, and 0-30 psig
- High-Output Ranges: 2-60 psig, 2-100 psig, and 0-60 psig
- Maximum Supply Pressure: Up to 130 psig, depending on output range
- Standard-Range Air Consumption: 1.5 scfh (0.75 Nl/min) at midrange typical
- High-Output Air Consumption: 4.5 scfh (2.25 Nl/min) at midrange typical
- Standard-Range Flow Capacity: 4.5 scfm at 25 psig supply and 12 scfm at 100 psig supply
- High-Output Flow Capacity: 20 scfm (566 Nl/min) at 130 psig supply
- Operating Temperature: -40°F to 158°F (-40°C to 70°C)
- Storage Temperature: -40°F to 200°F (-40°C to 93°C)
- I/P Loop Load: 9.5 VDC at 20 mA
- E/P Supply Voltage: 7-30 VDC, less than 3 mA
- E/P Signal Impedance: 10 kilohms
- Accuracy, Hysteresis, and Repeatability: ±0.10% of span guaranteed
- Deadband: 0.02% of span
- Position Effect: No measurable effect
- Supply Pressure Effect: No measurable effect
- Vibration Effect: Less than ±1.0% of span under specified test conditions
- Temperature Effect: ±0.045% per °F (0.07% per °C) of span
- RFI/EMI Effect: Less than 0.5% of span change in output pressure
- Pneumatic Ports: 1/4″ NPT
- Electrical Port: 1/2″ NPT for conduit models
- Operating Media: Clean, dry, oil-free air filtered to 40 microns
- Enclosure: NEMA 4X/IP65 with conduit connection
- Weight: 13.0 oz. (0.4 kg)
The Type 900X combines closed-loop sensing, piezoelectric actuation, and an integral booster relay to maintain precise output pressure even when operating conditions change.
How to Select the Right Configuration
Selecting the correct Type 900X configuration depends on the available electrical signal, required pneumatic output range, flow demand, supply pressure, electrical connection, mounting method, and hazardous-area requirements.
- Select 4-20 mA for standard current-to-pressure control applications.
- Select 0-5 VDC, 1-5 VDC, 1-9 VDC, or 0-10 VDC for voltage-to-pressure applications.
- Choose a standard output range for common process-control signals such as 3-15 psig.
- Choose a low-output range for sensitive applications requiring output as low as 0-5 psig.
- Choose a high-output range when the application requires output up to 100 psig.
- Verify that the available supply pressure falls within the range specified for the selected output.
- Select the field-selectable output option when the same unit must be configured for 3-15, 3-27, or 6-30 psig output.
- Select a conduit connection when NEMA 4X/IP65 protection is required.
- Select a terminal block for accessible field wiring in protected installations.
- Select a DIN 43650 connector for detachable industrial wiring.
- Select an M12 connector for compact machine wiring where agency approvals are not required.
- Choose wall, panel, pipe, DIN rail, or Type 925 manifold mounting based on the installation.
- Select the ATEX option only with a 4-20 mA input.
- Avoid extended electrical input without supply air pressure, as this may damage the unit.
For additional guidance:
Applications
The Type 900X is designed for demanding automation and process-control applications requiring highly accurate electrical-to-pneumatic pressure conversion.
- Pneumatic valve actuators
- Control valves and valve positioners
- Air cylinders
- Web tensioning systems
- Clutches and brakes
- Damper and louver actuators
- Robotics and motion control
- Test and calibration equipment
- OEM machinery
- High-density control panels
- Process automation systems
- Hazardous-area instrumentation
- Manifold-mounted pneumatic systems
Explore more applications:
Models & Configurations
Type 900X Ordering Structure
900 – [Input Signal] [Output] [Electrical Connection] [Options]
Input Signals
- A = 4-20 mA
- C = 0-5 VDC
- D = 1-9 VDC
- E = 0-10 VDC
- F = 1-5 VDC
Output Pressure Ranges
- C = 3-15 psig (0.2-1.0 bar)
- D = 3-27 psig (0.2-1.8 bar)
- E = 6-30 psig (0.4-2.0 bar)
- F = 1-17 psig (0.07-1.2 bar)
- G = 2-60 psig (0.13-4.1 bar)
- H = 2-100 psig (0.13-6.9 bar)
- K = 0-5 psig (0-0.35 bar); general-purpose only, no approvals
- L = 0-15 psig (0-1.0 bar)
- I = 0-30 psig (0-2.1 bar)
- J = 0-60 psig (0-4.1 bar)
Electrical Connections
- A = 1/2″ NPT conduit with pigtail
- D = DIN 43650 connector
- M = M12 connector; no agency approvals
- T = Terminal block
Available Options
- A = Field-selectable outputs for 3-15, 3-27, and 6-30 psig models; 0.20% accuracy
- K = ATEX Approval; 4-20 mA input only
- U = 1/4″ BSP Pneumatic Porting
Accessories and Mounting Kits
- DIN Rail Mounting Kit: P/N 445-766-024
- 1.5″ or 2″ Pipe Mounting Kit: P/N 448-542-005
- Type 925 Multifunction Supply Manifold
Technical Resources
- Product Page
- Product Data Sheet
- Installation Instructions
- Product Configurator
- 3D CAD Models
- Certifications
- Engineering Support Resources
FAQs
What does the Type 900X miniature transducer do?
The Type 900X converts a current or voltage input signal into a proportional pneumatic output pressure and uses closed-loop feedback to automatically correct output deviations.
What makes the Type 900X different from an open-loop transducer?
The Type 900X measures its pneumatic output with an internal pressure sensor and compares it with the electrical command signal. The circuit then self-corrects to maintain precise output despite changes in vibration, position, temperature, or supply pressure.
What input signals are available?
The Type 900X is available with 4-20 mA, 0-5 VDC, 1-5 VDC, 1-9 VDC, and 0-10 VDC input signals.
What output pressure ranges are available?
Available output ranges include 0-5 psig, 0-15 psig, 0-30 psig, 0-60 psig, 1-17 psig, 2-60 psig, 2-100 psig, 3-15 psig, 3-27 psig, and 6-30 psig.
How accurate is the Type 900X?
Accuracy, hysteresis, and repeatability are guaranteed at ±0.10% of span.
What is the maximum flow capacity?
The Type 900X provides up to 20 scfm (566 Nl/min) at 130 psig supply on high-output models.
Can the Type 900X be manifold mounted?
Yes. The Type 900X can be installed on the Type 925 Multifunction Supply Manifold for grouped installations using a common air supply with individual shutoff valves.
What electrical connections are available?
Available electrical connections include 1/2″ NPT conduit with pigtail, terminal block, DIN 43650, and M12.
Is the Type 900X approved for hazardous areas?
Qualifying 4-20 mA configurations include FM and CSA approvals, and ATEX approval is available as an option.
What air quality is required?
The Type 900X requires clean, dry, oil-free air filtered to 40 microns.
