Owon HPC71B Handheld Process Signal Generator

he Owon HPC71B redefines the everyday process calibrator by packing essential sourcing and measuring functions into a rugged, easy-to-use "multimeter" form factor. The HPC71B runs on standard AAA batteries, ensuring you are never left stranded in the field with a dead unit.

Designed for industrial sparkies, instrumentation technicians, and PLC/SCADA/BMS engineers who need a grab-and-go solution, this device simplifies the simulation of 4...20 mA loops, voltage signals, and thermocouples. Its intuitive interface allows for one-handed operation, making it the perfect tool for troubleshooting control valves, testing PLC inputs, and verifying temperature transmitters in tight spaces.

Key Features & Benefits

• Source & Measure Versatility: Capable of generating and measuring Voltage (V, mV), Current (mA), and Thermocouples (8 Types).

• 24V Loop Power: Includes a built-in 24V loop supply to power and test 2-wire transmitters directly, eliminating the need for a separate bench power supply.

• Multimeter Form Factor: The compact, ergonomic design fits comfortably in one hand and slips easily into a standard tool belt or bag.

• Standard AAA Power: Powered by 3x widely available AAA batteries. No proprietary chargers or hard-to-find battery packs required.

• Automated Testing: Features Manual Step and Automatic Waveform (Ramp) output functions to simulate dynamic process conditions and stroke valves automatically.

• Cold Junction Compensation: Supports both manual and automatic compensation for accurate thermocouple simulation.

Pro Tip: Battery Selection

Don't let low-quality cells limit your workday. Sourcing a 4...20 mA signal into a high-impedance loop is a high-energy task. While the HPC71B runs on standard AAA batteries, we strongly recommend using Alkaline, Lithium, or NiMH rechargeable batteries.

• Avoid Zinc-Carbon (Heavy Duty) batteries, as they are designed for low-drain devices (like TV remotes) and will result in disappointing battery life when driving industrial current loops.

• You should be able to source 4…20 mA for about 4-hours using standard alkaline batteries.

Technical Specifications

What's In The Box?

• Owon HPC71B Process Signal Generator

• Test Leads

• Alligator Clips

• Soft Carrying Case

• User Manual

Simplify Your IO Testing

For quick field checks, commissioning, and loop troubleshooting, the Owon HPC71B offers the perfect balance of capability, portability, and ease of use.