The Fluke 707 Loop Calibrator is a pocket‑sized instrument that supplies and measures loop currents (0‑20 mA or 4‑20 mA) and DC voltages up to 28 V. It offers Source, Simulate, Measure, and Loop Power modes, automatic ramp output, and a SpanCheck function for verifying transmitter zero and span.
The manual includes safety information (IEC 61010, CAT II 130 V), battery requirements (single 9 V alkaline), environmental limits, dimensions, weight, and warranty details. It also explains how to adjust the auto‑off timer, change current ranges, and interpret status symbols. This manual is written in Chinese.
| Current measurement range | 0‑20 mA or 4‑20 mA |
|---|---|
| Voltage measurement range | DC up to 28 V |
| Power source | Single 9 V alkaline battery (type 1604A / IEC 6LR61) |
| Auto‑off timer (default) | 30 minutes |
| Maximum terminal voltage | 30 V |
| Operating temperature | -10 °C to 55 °C |
| Storage temperature | -40 °C to 60 °C |
| Dimensions (W×H×D) | 69.85 mm × 142.87 mm × 50.80 mm |
The device automatically shuts off after 30 minutes of inactivity, but the timer can be shortened, lengthened, or disabled.
It meets IEC 61010‑1‑95 CAT 130 V, CSA C22.2‑1010‑992, EN61010‑1, EN61326, and carries the CE mark.
A single 9 V alkaline battery (type 1604A or IEC 6LR61) powers the calibrator.