Tenma 72-7730A, Руководство по эксплуатации, Страница: 45 / 69

44
2.
3.
Set the rotary switch to , and press BLUE
button to select (4~20mA)% feature.
1.
The rest procedure, please follow B. Measuring
Current: DC current measurement (Figure 3-2).
When the readings obtained is:
< 4mA, the primary display shows LO
4mA, the primary display shows 0 . ....
20mA, the primary display shows 100
> 20mA, the primary display shows HI
Note
Place the Meter in an environment of 18 C ~23 C
otherwise false reading may be obtained especially
in testing low temperature.
The included point contact temperature probe can
only be used with temperature 230
C below.
The included point-contact temperature probe is
suitable for temperature measurements below 440
degrees Fahrenheit.
When temperature measurement has been
completed, disconnect the connection between the
temperature probe and the input terminals of the
Meter.
z
z
z
z
z
z
I. 4~20 mA loop current as % readout
It shows the mA measured value or output level in,
in a 4-20mA scale.
To use 4~20mA Loop feature, connect the Meter as
follows:
mA
Model 72-7730A/72-7732A: OPERATING MANUAL