Common Specifications
(HHM73 &
HHM76)
ELECTRICAL
Frequency Range:
DC to 10 kHz at -3 dB
Load Impedance:
>100 k
W
/100 pF
Insertion Impedance:
0.39 m
W
@ 50 Hz, 58 m
W
@1000 Hz
Working Voltage:
600 Vrms
Common Mode Voltage:
600 Vrms
Influence of Adjacent Conductor:
< 10 mA/A at 50 Hz at 23 mm from the probe
Influence of Conductor in Jaw Opening:
0.5% reading (DC to 440 Hz)
Battery:
9 V alkaline (NEDA 1604A, IEC 6LR61) recommended, 6LF22
Low Battery:
Green LED when battery voltage
³
6.5 V
Battery Life:
Approx. 50 hours with alkaline battery
Overload Indication:
Red LED indicates input greater than the selected range.
Auto-Off:
10 minutes (may be disabled at power-up by pressing Zero button
while turning on; green LED blinks three times to indicate that auto-off
is disabled)
MECHANICAL
Operating Temperature Range:
14¡ to 131¡F (-10¡ to 55¡C)
Storage Temperature Range:
-40¡ to 176¡F (-40¡ to 80¡C)
Temperature Influence:
£
300 ppm/¡K or 0.3%/10¡K
Operating Relative Humidity:
10-35¡C: 90% ±5% RH (without condensation)
40-55¡C: 70% ±5% RH (without condensation)
Operation
Examples
DC Current Measurement Example for Model HHM73 with the
Banana/BNC Connection (XF/SS Part #2111.32)
·
Conductor carrying 25 A DC in the direction of the arrow
·
DMM placed in DC volts mode
·
DMM displays 250.0 mV with the probe in the 60 A (10 mV/A) range
ACV
DCV
250.0
M
V
COM
+
25 A DC
®
600V CAT III - 600A
!
DC
ZERO
OL
ON
600A
OFF
60A
OUTPUT:
600 A: 1 mV/A
60 A: 10 mV/A
HHM73
AC/DC CURRENT PROBE
6
15
