DatasheetTable of Contents
- Typical Applications
- Functions and Benefits
- HART Communication and Diagnostics
- Technical Highlights
- FAQ
Typical Applications of the UPS4E
The UPS4E loop calibrator has been specifically designed for testing, calibration, and troubleshooting of 4–20 mA current loops. This compact handheld instrument helps maintenance personnel, service technicians, and automation engineers quickly diagnose process signals and control loops in industrial facilities.
Typical applications include testing pressure transmitters, temperature transmitters, level sensors, flowmeters, PLC analog inputs, and control valves. By combining measurement, simulation, and loop power supply functions, many calibration and troubleshooting tasks can be performed directly in the field.
- Testing of 4–20 mA and 0–20 mA current loops
- Calibration of transmitters and sensors
- Simulation of process signals for PLC and control system testing
- Verification of control valves and control loops
- Troubleshooting signal deviations and wiring issues
- Recording measurement data during service activities
Functions and Benefits
The UPS4E combines multiple test instruments into a single compact handheld device. In addition to precise current measurement, it can generate defined mA outputs and simulate a transmitter. The integrated 24 V loop power supply allows testing even when no external power source is available.
The graphical display simultaneously shows current values and percentage values, making it easy to compare signals with expected process conditions. Automatic step, span, and ramp functions are available for repetitive testing procedures.
- Measure, simulate, and source 0 to 24 mA signals
- Integrated 24 V loop power supply
- Simultaneous display of mA value and percentage value
- Step function for automated testing sequences
- Ramp function for signal simulation
- Valve testing functions for control elements
- Data logger with storage for up to 100,000 readings
- High accuracy in a compact design
HART Communication and Diagnostics
For troubleshooting and commissioning modern instrumentation, the UPS4E includes an integrated 250 Ω resistor to support HART communication. In many applications, this eliminates the need for additional external resistors.
The instrument can also measure DC voltages up to ±30 V DC. This simplifies the diagnosis of power supply issues, wiring faults, and signal disturbances within a current loop. Service technicians can identify faults more quickly and reduce system downtime.
- Integrated 250 Ω HART resistor
- Voltage measurement up to ±30 V DC
- Fast troubleshooting of current loops
- Verification of supply voltages
- Ideal for maintenance, service, and commissioning
Technical Highlights
| Feature | Value |
|---|---|
| Measurement and Output Range | 0 to 24 mA |
| Resolution | 0.001 mA |
| Accuracy | ±0.01% of reading + 1 digit |
| Integrated Loop Supply | 24 V DC |
| Voltage Measurement | ±30 V DC |
| Data Logger | Up to 100,000 readings |
| HART Support | Integrated 250 Ω resistor |
| Protection Rating | IP54 |
| Operating Temperature | -10 to +50 °C |
| Power Supply | 4 × AA batteries |
| Interface | USB-C |
UPS4E Loop Calibrator FAQ
What is a loop calibrator?
A loop calibrator is used to measure, simulate, and source current signals such as 4–20 mA. It is commonly used for calibration and troubleshooting of industrial process control loops.
Can the UPS4E simulate a 4–20 mA signal?
Yes. The UPS4E can generate precise current outputs and simulate devices such as pressure transmitters and other process transmitters.
Can the UPS4E test both active and passive current loops?
Yes. The instrument supports testing of both active and passive loops and includes an integrated 24 V loop power supply.
Does the UPS4E support HART communication?
Yes. The integrated 250 Ω resistor supports HART applications without requiring additional external components.
Can I test control valves with the UPS4E?
Yes. The step and ramp functions allow convenient testing of control valves and control loop responses.
Can the instrument store measurement data?
Yes. The built-in data logger can store up to 100,000 readings for analysis and documentation purposes.
What accuracy does the UPS4E provide?
The UPS4E offers accuracy up to ±0.01% of reading plus 1 digit, making it suitable for demanding calibration and maintenance tasks.
What applications is the UPS4E best suited for?
The instrument is ideal for transmitter calibration, PLC input testing, plant commissioning, valve testing, and troubleshooting 4–20 mA current loops.
