Influence of Temperature:
≤ 150 ppm/°K, or 0.15 % of mV output per 10 °K
Influence of Humidity (10 - 90 % RH):
≤ 0.2 % of mV output per 10 °K @ (18 to 28)°C
MECHANICAL SPECIFICATIONS
Operating Temperature:
(14 to 131) °F (-10 to 55) °C
Storage Temperature:
(-40 to 158) °F (-40 to 70) °C
Operating Relative Humidity:
(10 to 35) °C 85 % RH
(without roll-off above 35 °C)
Maximum Cable Diameter:
One Ø 0.78 in (20 mm), bus bar (20 x 5) mm
Cable Protection:
IP 40 (IEC 526)
Drop Test:
Test per IEC 68-2-32:
1.0 m drop on 38 mm of Oak on concrete.
Mechanical Shock:
Test per IEC 68-2-27
Vibration:
Test per IEC 68-2-6
Dimensions:
(5.47 x 2.00 x 1.18) in (139 x 51 x 30) mm
Weight:
6.5 oz (180 g)
Polycarbonate Material:
Jaws: Polycarbonate with 10 % fiberglass charge,
Red UL 94 V)
Case: Polycarbonate 920 A Gray
Opening Operations - Life:
> 50,000
Output:
Double/reinforced insulated 5 ft (1.5 m) lead with
safety 4 mm banana plug
SAFETY SPECIFICATIONS
Electrical:
Double insulation or reinforced insulation between
the primary or secondary and the outer case of the
handle conforms to IEC 1010-2-32, 600 V CAT III,
Pollution Degree 2.
Common Mode Voltage:
600 V
Electromagnetic Compatibility:
Emission and immunity in an industrial environ-
ment according to EN 61326-1.
ORDERING INFORMATION
AC Current Probe MN375.......
Cat #2115.41
Accessories:
Banana plug adapter
(to nonrecessed plug) ............
Cat #1017.45
OPERATION
Please make sure that you have already read and fully understand the
WARNING
section on page 1.
Making Measurements with the AC Current Probe Model MN375.
•
Connect the black lead of the current probe to “common” and the red lead to the AC voltage input
on your DMM or other voltage-measuring instrument. The AC current probe has an output of
100mV/A. This means that for 10A AC in a conductor around which the probe is clamped, 1 V AC
will come out of the probe leads to your DMM or instrument. Select the range which corresponds
to the measured current. If the current magnitude is unknown, start with the highest range and
work down until the appropriate range and resolution are reached. Clamp the probe around the
conductor. Take the reading on the meter and multiply it by 10 to obtain the measured current
(e.g, 160 mV reading = 160 x 10 = 1,600 mA or 1.6 A).
•
For best accuracy, avoid if possible, the proximity of other conductors which may create noise.
Tips for Making Precise Measurements
•
When using a current probe with a meter, it is important to select the range that provides the best
resolution. Failure to do this may result in measurement errors.
•
Make sure that probe jaw mating surfaces are free of dust and contamination. Contaminants cause
air gaps between the jaws, increasing the phase shift between primary and secondary. It is very
critical for power measurement.
