Finest 135 - Technical Data and Specifications; Technical Data Overview

8.1 Technical Data
Display: Digital – 4000 counts (3
3
/
4
digits)
[Hz: 9999 counts], updates 4 times/sec.
Analog –Updates 20 time s /sec, 41 segment bar
graph.
Maximum Conductor Size: ø 51mm (2.00”)
Maximum Jaw Opening: 52mm (2.04”)
Max. Conductor Voltage: 600V rms
Frequency Range: Current Measurement – 10Hz to 2KHz
Frequency Measurement – 0.5Hz to
10KHz
Crest Factor, Continuous Waveform: (45Hz to 65Hz, less
than 1000A peak)
1.4 to 2.0 add 20 digits to accuracy below 100A
2.0 to 3.0 add 1% to accuracy ( + 20 digits below 100A)
3.0 to 5.0 add 2% to ac c ura c y ( + 20 digits below 100A)
Adjacent Conductor Effect: 1% of current in adjacent
conductor max.
Operating Temperature: – 10°C to 55°C
Operating Humidity: 0% to 80% @ 40°C, 70% @ 50°C
Storage Temperature: – 20°C to 60°C
Standard Equipment: Clamp-on Meter, Clip-on Holster,
Test-leads, User’s manual,
and 9V battery (installed)
Battery Type: NEDA 1604A 9V or 6LF22 9V
Battery Life: 80 hours typical (alkaline)
Safety Standards: UL 1244, IEC 348/1010, IEC 664
Installation Category Ill, CSA C22.2 No.
231, ANSI/ISA S82, VDE 0411
Weight: Approx. 1.21 lb (545g)
Size: 4.39cm H x 9.75cm W x 24.5cm L
(1.73”H x 3.84”W x 9.65”L)
8.2 Specifications
Accuracy is given as ± ([% of reading] + [number of least
significant digits]) at 18°C to 28°C with relative humidity up
to 80%, for a period of one year after calibration.
8. Technical Data and Specifications
(Appropriate Parts)
30 31
AC Current
RMS AMPERES
*
1
RANGE RESOLUTION ACCURACY
*2
0.30 to 39.99A 0.01A ± (3% + 20 dgts) 45Hz – 65Hz
(40A Scale) ± (4% + 30 dgts) 30Hz – 45Hz
*3
± (4% + 30 dgts) 65Hz – 1KHz
± (8% + 30 dgts) 20Hz – 30Hz
*4
0.3 to 399.9A 0.1A ± (3% + 2 dgts) 45Hz – 65Hz
(400A Scale) ± (4% + 3 dgts) 30Hz – 45Hz
*3
± (4% + 3 dgts) 65Hz – 1KHz
± (8% + 3 dgts) 20Hz – 30Hz
* 4
400 to 700A 1A ± 5% 45Hz – 65Hz
(400A Scale) ± 7% 30Hz – 45Hz
*3
± 7% 65Hz – 1KHz
Not Specified 20Hz – 30Hz
*4
*
1 . Sine Wave, measured with conductor centered at alignment marks and battery l ife indication
greater than 40 hours on me t er power up.
*
2 . RMS M i n/Max: ADD 10 counts
*
3 . 1A and above, 30Hz – 45Hz
*
4 . AVG only, 2.5A and above
RMS Min/Max: Add 2% of reading
INSTANTANEOUS AMPERES (CREST MODE)
**
1
RANGE RESOLUTION ACCURACY
0.4 to 39.99A 0.2A ± (3% + 30 dgts) 45Hz – 65Hz
(40A Scale) ± (4% + 30 dgts) 30Hz – 45Hz
**2
± (4% + 30 dgts) 65Hz – 1KHz
± (4% + 40 dgts) 20Hz – 30Hz
**3
0.4 to 399.9A 2A ± (3% + 3 dgts) 45Hz – 65Hz
(400A Scale) ± (4% + 3 dgts) 30Hz – 45Hz
** 2
± (4% + 3 dgts) 65Hz – 1KHz
± (4% + 4 dgts) 20Hz – 30Hz
**3
400 to 599A 4A ± 3% 45Hz – 65Hz
(400A Scale) ± 4% 30Hz – 45Hz
**2
± 4% 65Hz – 1KHz
± 4% 20Hz – 30Hz
**3
600 to 999A 4A ± 7% 45Hz – 65Hz
(400A Scale) ± 7% 30Hz – 45Hz
**2
± 7% 65Hz – 1KHz
± 7% 20Hz – 30Hz
**3
**
1. Same as
*
1
**
2 . Same as
*
3
**
3. 2.5A and above