Fluke 707 Loop Calibrator Battery 30V

This loop calibrator is a handheld tool for calibration, repair and maintenance of current loops in industrial control and process environments. It provides sourcing, simulation and measurement of loop currents, Plus loop voltage checks and a built-in loop supply, all in a compact, carry-friendly package suited to field and workshop use.

• 0.001mA resolution delivers fine measurement detail for precise adjustments
• ±0.015% accuracy ensures tight current calibration results
• 24V loop supply with simultaneous mA measurement supports live loop testing
• Simultaneous display of mA and percentage of span simplifies diagnostics
• Selectable step or ramp outputs enable automated response checks
• Battery‑powered operation offers around 18 h runtime for long shifts

• Suitable for commissioning and calibrating 4–20 mA transmitters and I/Ps
• Ideal for fault‑finding in PLC analogue inputs and field transmitters
• Used for verifying loop‑powered indicators and control valves
• Can be used for HART loop checks with a 250 Ω resistor in place
• Used with workshop bench setups for maintenance routines

The instrument measures d.c. loop voltage from 0V to 28V to check supply and drop conditions.

It can source and simulate mA signals, allowing verification of receiver response before and after replacement.

Operating temperatures range from −10 °C to 55 °C and it withstands relative humidity profiles up to 95% at lower temperatures.

The calibrator meets CSA C22.2 No.1010.1:1992 and is rated for a 30V safety category.

The device is lightweight at 224 g and uses alkaline battery power with a removable battery door for quick changes.