The 393 FC CAT III 1500 V True-rms Clamp Meter with iFlex is designed for solar photovoltaic (PV) installation technicians and maintenance professionals who work in high voltage dc environments: PV arrays, wind power, electric railways, data centers battery banks for uninterruptible power supplies. The clamp will measure up to 1500 V dc, 1000 V ac, and up to 999.9 A dc or ac through the clamp jaw. The included iFlex flexible current probe extended ac current measurements up to 2500 amps. This clamp has a thin jaw, giving you access to cables in crowded combiner boxes. Test leads are designed with your work in mind, and are also rated to CAT III 1500 V dc.
Key functions of the solar clamp meter:
IP54 rated, ideal for work outdoors including PV panel testing
DC power measurement, showing readings in kVA
Audio Polarity indicator helps prevent accidental miswires
Visual Continuity turns provide a bright green light in the display, ideal when working in dark and noisy environments
Logging and reporting of test results via Fluke Connect software
When measuring ac current the included iFlex flexible current probe gives you unparalleled access to cable is tight spaces. The iFlex probe can be twisted through extremely small spaces and provide accurate current measurements.
Specifications: Fluke 393 Solar Clamp Meter CAT III 1500 V
Specifications:
General
Maximum voltage between any Terminal and Earth Ground
AC 1000 V
DC 1500 V
Batteries 2 AA IEC LR6 alkaline
Display Dual display with backlight
Automatic Power Off 20 minutes
Electrical
Accuracy
Accuracy is specified for 1 year after calibration, at operating temperatures of 18 °C to 28 °C, relative humidity at 0 % to 75 %. Accuracy specifications take the form of: ±([% of Reading] + [Number of Least Significant Digits]).
Temperature Coefficients Add 0.1 x specified accuracy for each °C > 28 °C or < 18 °C
AC Current: Jaw
Range 999.9 A
Resolution 0.1 A
Accuracy 2 % + 5 digits (10 Hz to 100 Hz)
2.5 % + 5 digits (100 Hz to 500 Hz)
Crest Factor (50/60 Hz) 2.5 @600.0 A
3.0 @500.0 A
1.42 @999.9 A
Add 2 % for C.F. >2
AC Current: Flexible Current Probe
Range 999.9 A
2500 A
Resolution 0.1 A (≤999.9 A)
1 A (≤2500 A)
Accuracy 3 % RD + 5 digits (10 Hz to 500 Hz)
Crest Factor (50/60Hz) 2.5 @1400 A
3.0 @1100 A
1.42@2500 A
Add 2 % for C.F. >2
Position Sensitivity
NEC symbol
Distance from Optimum i2500-10 Flex i2500-18 Flex Error
A 0.5 in (12.7 mm) 1.4 in (35.6 mm) ±0.5 %
B 0.8 in (20.3 mm) 2.0 in (50.8 mm) ±1.0 %
C 1.4 in (35.6 mm) 2.5 in (63.5 mm) ±2.0 %
Measurement uncertainty assumes centralized primary conductor at optimum position, no external electrical or magnetic field, and within operating temperature range.
DC Current
Range 999.9 A
Resolution 0.1 A
Accuracy 2 % RD + 5 digits[1]
[1] When using the ZERO (B) function to compensate for offsets.
AC Voltage
Range 600.0 V
1000 V
Resolution 0.1 V (≤600.0 V)
1 V (≤1000 V)
Accuracy 1 % RD + 5 digits (20 Hz to 500 Hz)
DC Voltage
Range 600.0 V
1500 V
Resolution 0.1 V (≤600.0 V)
1 V (≤1500 V)
Accuracy 1 % RD + 5 digits
mV dc
Range 500.0 mV
Resolution 0.1 mV
Accuracy 1 % RD + 5 digits
Amps Frequency: Jaw
Range 5.0 Hz to 500.0 Hz
Resolution 0.1 Hz
Accuracy 0.5 % RD + 5 digits
Trigger Level 5 Hz to 10 Hz, ≥10 A
10 Hz to 100 Hz, ≥5 A
100 Hz to 500 Hz, ≥10 A
Amps Frequency: Flexible Current Probe
Range 5.0 Hz to 500.0 Hz
Resolution 0.1 Hz
Accuracy 0.5 % RD + 5 digits
Trigger Level 5 Hz to 20 Hz, ≥25 A
20 Hz to 100 Hz, ≥20 A
100 Hz to 500 Hz, ≥25 A
Voltage Frequency
Range 5.0 Hz to 500.0 Hz
Resolution 0.1 Hz
Accuracy 0.5 % RD + 5 digits
Trigger Level 5 Hz to 20 Hz, ≥5 V
20 Hz to 100 Hz, ≥5 V
100 Hz to 500 Hz, ≥10 V
DC Power
Range 600.0 kVA (600.0 V dc range)
1500 kVA (1500 V dc range)
Resolution 0.1 kVA
1 kVA
Accuracy 2 % RD + 2.0 kVA
2 % RD + 20 kVA
Resistance
Range 600.0 Ω
6000 Ω
60.00 kΩ
Resolution 0.1 Ω (≤600.0 Ω)
1 Ω (≤6000 Ω)
0.01 kΩ (≤60.00 kΩ)
Accuracy 1 % RD + 5 digits
Capacitance
Range 100.0 μF
1000 μF
Resolution 0.1 μF (≤100.0 μF)
1 μF (≤1000 μF)
Accuracy 1 % RD + 5 digits
Inrush Trigger Level 5 A
Mechanical
Size (L x W x H) 281 mm x 84 mm x 49 mm
Weight (with batteries) 520 g
Jaw Opening 34 mm
Flexible Current Probe Diameter 7.5 mm
Flexible Current Probe Cable Length
(head to electronics connector) 1.8 m
Environmental
Operating Temperature -10 °C to 50 °C
Storage Temperature -40 °C to 60 °C
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