The Fluke 707 Loop Calibrator is a pocket-sized tool for supplying current and measuring. It can test current loops of 0-20 milliamps or 4-20 milliamps and measure DC voltage up to 28 volts.
The Fluke 707 Loop Calibrator is a pocket‑sized instrument for sourcing and measuring 0‑20 mA or 4‑20 mA current loops and DC voltages up to 28 V. It complies with IEC 61010 CAT I 30 V safety standards and includes functions such as mA sourcing, simulate mode, loop power, automatic waveform output, and SpanCheck™ range‑check.
The manual provides safety warnings, button functions, instructions for measuring voltage, current, and loop power, battery replacement steps, a list of replaceable parts, and detailed accuracy and general specifications. It also covers HART mode activation and environmental limits. This manual is written in Chinese.
| Voltage measurement range | 0‑28 V (max 30 V) |
|---|---|
| Voltage resolution | 1 mV |
| Voltage input impedance | 1 MΩ |
| Voltage accuracy | ±(0.015 % + 2 digits) |
| Current measurement range | 0‑20 mA (max 24 mA) |
| Current resolution | 1 µA |
| Current accuracy | ±(0.015 % + 2 digits) |
| Output current range | 0‑20 mA (max 24 mA) |
| Battery type | 9 V alkaline (ANSI/NEDA 1604A or IEC 6LR61) |
| Dimensions (W × H × D) | 69.85 mm × 142.87 mm × 50.80 mm |
| Weight (without case) | 224 g |
| Operating temperature | -10 °C to 55 °C |
| Maximum terminal voltage | 30 V |
Turn the calibrator OFF, then press A + D together; the selected range (4‑20 mA or 0‑20 mA) will be saved until changed again.