F850使用平面磁传感器线圈开口式交流钳表，用于多芯/单芯电流测量。
F850是一款手持式和电池供电的数字交流钳形表，用于测量多芯电缆和电源线中的电流，用户无需拆分它们以及单芯电缆和电源线。 该仪表可测量高达100A的2芯或3芯圆形扁平或双芯和地线电流，分辨率为0.1A。
单核电流测量高达199.9A意味着该仪表还可以用作传统的交流钳形表。 该仪表针对特定的欧洲和北美电缆类型进行了优化（请参阅优化电缆类型）。
Features:
• 3 1/2 digit, 2000 count.
• AC current measurement in 1, 2, or 3-core cable.
• Use on flat, round or oval cables.
• Measures up to 199.9 A on single-core cables.
• Measures up to 100 A on multi-core cables.
• Jaw opening: 13 mm (0.51 ")
• AC/DC voltage measurement (2 ranges: 200 V/600 V).
• Ohms measurement up to 2 kΩ.
• Frequency measurement (2 ranges: 2 kHz/ 20 kHz).
• Continuity check & Diode test.
• Data Hold.
• Back-lighted LCD.
Accessories:
• Batteries, 9V (BT1)
• Test Lead Set (FTL-500V1)
• Alligator Clips (AC7)
• Banana Plug Adaptor (PN CA 8301)
• User’s Manual
Standards
UL 3111-1
CSA C22.2 No.1010-2-032
IEC 1010-2-032 CAT III 600V
Electrical Specification
Accuracy is given as ?8?4([ % of reading] + [number of least significant digits]) at 23°C ?8?4 5°C with relative humidity up to 80%, for a period of one year after calibration.
DC Voltage Measurement
| Range | Resolution | Accuracy |
| 200V | 0.1V | ±(0.5% Read. + 3dgt) |
| 600V | 1V | ±(1.0% Read. + 3dgt) |
AC Voltage Measurement (45Hz to 400 Hz)
| Range | Resolution | Accuracy |
| 200V | 0.1V | ±(0.8% Read. + 3dgt) |
| 600V | 1V | ±(1.2% Read. + 3dgt) |
AC Current Measurement
| Function | Range | Resolution | Accuracy |
| Single-Core Mode (45Hz to 1kHz) | 200A | 0.1A | ±(1.5% Read. + 3dgt) |
| Multi-Core Mode (45Hz to 400 Hz) | 100A | ±(5% Read. + 10dgt) |
Ohms Measurement
| Range | Resolution | Accuracy |
| 2 kW | 1W | ±(1.0% Read. + 5dgt) |
Frequency Measurement
| Range | Resolution | Accuracy |
| 2kHz | 1Hz | ±(1.0% Read. + 5dgt) |
| 20kHz | 10Hz |
Continuity Test
| Audible Threshold | Open Circuit voltage |
| Approx. < 15W | < 3 V |
Diode Check
| Max Test Current | Open Circuit voltage |
| <1.0 mA | <3 V |
General Specifications
Display : 3 1/2 digits LCD with max. reading of 2000.
Polarity : Automatic, (-) negative polarity indication.
Zero adjustment : Automatic.
Over range indication : Only the MSD “OL” is displayed.
Power : Single, standard 9 voltage battery, NEDA 1604, JIS 006P, IEC6F22
Dimension : 94 (W) x 227 (H) x 44.5 (D) mm.
Weight : Approx. 350 g
