Ansi Engineers

The Emerson Trex LCD Portable Calibrator is a rugged, high-performance handheld device designed for field calibration, configuration, and troubleshooting of smart and conventional field instruments. It replaces legacy communicators and calibrators by combining powerful diagnostics, intuitive touchscreen operation, and robust field performance in a single portable unit.

Engineered for demanding industrial environments, the Trex calibrator improves maintenance efficiency, reduces downtime, and ensures accurate instrument performance across process industries.

• Bright color LCD touchscreen for easy navigation

• Supports HART, FOUNDATION™ Fieldbus, and conventional devices

• Built-in calibration and loop diagnostics

• Can power the control loop—no external power required

• Simultaneous communication and measurement capability

• Fast device configuration and verification

• Rugged, industrial-grade design suitable for field use

• Long battery life for extended operations

• Pressure, temperature, current (mA), voltage (V)

• Device configuration and verification

• Loop testing and troubleshooting

• Smart transmitter calibration

• Oil & gas plants

• Power generation

• Chemical & petrochemical industries

• Refineries

• Water & wastewater treatment plants

• Process manufacturing industries

• Instrument maintenance & commissioning

• Combines communicator and calibrator in one device

• Reduces instrument maintenance time and costs

• Accurate and repeatable field calibration

• Easy integration with Emerson and non-Emerson devices

• Trusted Emerson reliability and global support

Ideal for instrument technicians and maintenance engineers for on-site calibration, commissioning, diagnostics, and troubleshooting of field instruments.

The CA71 Portable Calibrator is a compact and rugged handheld device designed for on-site calibration, simulation, and measurement of industrial process signals. It is ideal for field technicians and maintenance engineers who require high accuracy, portability, and ease of operation during commissioning and troubleshooting activities.

Built for industrial environments, the CA71 offers stable performance and quick response, helping reduce downtime and improve calibration efficiency.

• Compact, lightweight, and easy-to-carry handheld design

• High accuracy for field calibration tasks

• Measures and sources current (mA), voltage (V)

• Loop checking and signal simulation capability

• Clear digital display for easy reading

• Simple keypad operation

• Rugged construction suitable for field use

• Long battery life for extended operation

• 4–20 mA measurement and sourcing

• Voltage measurement / output

• Signal simulation for transmitters

• Loop testing and verification

• Instrument commissioning & maintenance

• Calibration of pressure, temperature, and flow transmitters

• PLC, DCS, and control loop testing

• Power plants

• Oil & gas industries

• Chemical & process industries

• Water & wastewater treatment plants

• Reliable and repeatable calibration results

• Reduces maintenance time and effort

• Easy operation with minimal training

• Suitable for both workshop and field applications

• Trusted performance for industrial calibration needs

Instrument technicians, maintenance engineers, service teams, and automation professionals.