208
ELECTRONICS
E
Range
Accuracy
Resolution
Overload Protection
400mV (DC only)
± (0.5%+2d)
0.1mV
AC/DC 600V
4V
DCV: ± (1%+2d)
ACV: ± (1.2%+5d)
0.001V
40V
0.01V
400V
0.1V
600V
1V
Electrical Specifications (23±5
°
C):
DC/AC Voltage
Range
Accuracy
Resolution
Overload Protection
400 A ACA: 0.5 to 400A
± (2%+5d)
0.1 A
AC/DC 600A
600 A
± (2%+8d)
1 A
Remark * Input impedance for ACV & DCV range is 10 Mega ohm. * ACA, ACV specification be tested on sine wave 50/60 Hz.
DC/AC current (Clamp on)
Range
Accuracy
Resolution
Overload Protection
400 ohm
± (1%+5d)
0.1 ohm
AC / DC 400V
4 K ohm
1 ohm
40 K ohm
10 ohm
400 K ohm
100 ohm
4 M ohm
± (2%+2d)
1 K ohm
40 M ohm
± (3.5%+5d)
10 K ohm
Ohms
Range
Accuracy
Resolution
Overload Protection
5 Hz
± (1%+5d)
0.001 Hz
AC / DC 1000V
50 Hz
0.01 Hz
500 Hz
0.1 Hz
5 KHz
1 Hz
50 KHz
0.01 KHz
100 KHz
0.1 KHz
Frequency (5V)
Diode
Short/non conductance, good/defect test
Continuity
If measuring resistance is less than 10 ohm, the beeper will sound .
400A AC/DC Clamp
Model
CM-9940
Display
10.8 mm (0.43") LCD, 4 digits, Max. indication 5000 (frequency range).
Measurement Range
ACA, DCA, ACV, DCV, Ohms, Diode, Hz, Continuity beeper, Relative.
Polarity
Automatic Switching, " - " indicates negative polarity.
Current Sensor
Hall effect sensor.
Zero adjustment
DCA : Push bottom adjustment. Other ranges : Automatic adjustment.
Over-input
Indication of " 1 " or " -1 ".
Sampling Time
Approx. 0.35 second.
Battery
2 x 1.5V AA ( UM-3 ) batteries.
Operating Temp./Humidity
0°C to 50°C / Less than 80% RH.
Weight / Dimension
230 g/0.50 LB (including battery). / HWD : 178 x 64 x 33 mm ( 7.0 x 2.5 x 1.3 inch )
Max. Jaw Open Size
30 mm ( 1.18 inch ) Dia.
Accessories Included
Operation manual: 1 PC, Test lead (red & black): 1 PC
Optional Accessories
and Adapters
Carrying case, EMF Adapter, Light Adapter, Anemometer Adapter,
Pressure Adapter, Sound Adapter, Tachometer Adapter, High Voltage Probe.
CM-9940, mini DCA/ACA Clamp
●
Design meet IEC 1010 CATIII 600V safety requirement.
●
4000 counts, Auto range & multi-functions.
●
Measurement for ACA, DCA, ACV, DCV, Ohms, Diode, Hz, Continuity beeper.
●
Water resistance for the front panel.
●
Data hold.
●
Wide ranges (600A, 400A) clamp on current measurement both for ACA&DCA.
●
Overload protection circuit is provided for all range.
●
LSI circuit provides high reliability and durability.
●
Pocket & slim housing case, easy carry out. Compact & heavy duty ABS
housing case and durability.
CM-9940
Features:
