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The fastest, one-handed tool for loop checks.
The Fluke 707 loop calibrator is a high performance solution for calibration, repair and maintenance of current loops. The new “Quick Click” knob making it extremely fast and easy to use. It features:
One handed user interface with “Quick Click” detented knob
mA sourcing, simulation and measurement
0.015% accuracy and 0.001 mA resolution
Simultaneous mA and % of span display
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Selectable step or ramp outputs
24 V Loop supply with mA measure, including 250 Ω HART resistor
0-28 V DC measurement to check Loop Voltage
Easy battery exchange without opening the case
Compact case with separate protective holster
| Specifications | ||
| Current measurement | Range | 0 to 24 mA |
| Resolution | 0.001 mA | |
| Accuracy | 0.015% Rdg + 2 LSD | |
| Current sourcing | Range | 0 to 20 mA or 4 to 20 mA |
| Accuracy | 0.015% Rdg + 2 LSD | |
| Drive capability | 1200 Ω 950 Ω at 20 mA in HART mode | |
| Current simulation | Range | 0 to 20 mA or 4 to 20 mA |
| Accuracy | 0.015% Rdg + 2 LSD | |
| Ext. loop voltage requirement | 12-30 V | |
| Loop power | While measuring mA, 24 V | |
| Voltage measurement | Range | 0 to 28 V DC |
| Resolution | 1 mV | |
| Accuracy | 0.015% Rdg + 2 LSD | |
| Environmental Specifications | ||
| Operating temperature | -10°C to 55°C | |
| Storage temperature | -30°C to 60°C | |
| Humidity (without condensation) | 0 to 90% (0°C to 35°C); 0 to 70% (35°C to 55°C) | |
| Temperature coefficient | -10°C to 18°C, 28°C to 55°C, ±.005% of range per °C | |
| Safety Specifications | ||
| Safety | CSA C22.2 No. 1010.1:1992 | |
| EMC | EN50082-1:1992 and EN55022:1994 Class B | |
| Maximum voltage | 30 V | |
| Mechanical and General Specifications | ||
| Size | 152 x 70 x 41 mm | |
| Weight | 224 g (340 g including holster) | |
| Batteries | One 9 V battery Alkaline | |
| Shock and vibration | Per MIL-T-28800 for a Class 2 Instrument | |
| Display current and % of span | Yes | |
| Auto step, auto ramp | Yes | |
| Span check | Yes | |
This feature-rich solution combines the best features push-button and knob-base loop calibrator and offers:
- Large display and simple, quick-click interface for easy one-handed operation.
- Simultaneous mA and % readout for quick, easy interpretation of readings.
- mA accuracy of 0.015%, superior to other loop calibrators in this price range.
- 1 µA resolution for mA source, simulate and measure.
- Push button 25% steps for fast, easy linearity checks.
- 0-100% “span check” for fast confirmation of zero and span.
- Selectable slow ramp, fast ramp, and step ramp to provide smooth outputs for valve slewing and loop functional tests.
- 24 volt internal loop supply, so you can power and read a transmitter at the same time without carrying a DMM.
- Measures V DC to 28 V.
- Single 9 V battery that is easily changed without braking calibration seal
- 0 - 20 mA or 4 - 20 mA default start up modes.
- Innovative output adjustment dial with 1 µA and 100 resolution.
- HART ™ mode connects 250 Ω resistor in series with 24 V loop for compatibility with HART communicators.
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