8
5.3 Current Loop Mode Measurement:
In DC 200mA, pressing the “SELECT” push button to change the range between Current and
4-20mA (as show 0.0 to 100.0) Current Loop Mode (Ref. 6.1.7).
Note:
1. Input impedance Typ. 1
Ω
.
2. Over-Load: 23.2mA (120.0%) “OL” displayed.
3. No indication of “%”.
5.4 Temperature Measurement
Warning
Remove test leads being measured.
There are two sets of sockets for “K type” thermocouple plugs at the top end of CHY-48R
marked with T1 and T2.To measure temperature with one channel, insert the thermo couple
into one of the socket and turn the rotary switch to the corresponding position (i.e. T1, T2 or
T1-T2).
°C and °F Selection:
When the Rotary Switch points to the ranges of T1, T2 or T1-T2, pressing the push button
“SELECT” will change the unit between °C and °F.
SELECT
Push Button
AC/DC
Indication
°
C,
°
F, A
Indication
DC/AC
Push Button
Indication of
°
C or
°
F
Push Button
“SELECT”
9
5.5 Resistance and Diode Measurement
To measure resistance and diode, insert the test probes into the sockets marked with “COM”
and “V
Ω
” at the lower-end of the meter and turn the Rotary Switch to one of the
Ω
Ranges or
Diode Range.
Note:
1. When measuring high resistance (such as at ranges of 2M
Ω
and 20M
Ω
), due to the level of
signal is very low and very sensitive to noise. Special care need to be paid to avoid the
influences of noise, especial when there is a relative long wire between the meter and
resistor to be measured.
2. The accuracy of the functions might be slightly affected, when exposed to a radiated
electromagnetic field environment, eg, radio, telephone or similar.
5.6 Continuity Test Mode (in 200
Ω
) Measurement
In 200
Ω
, pressing the “SELECT” push button to change the range between 200
Ω
and
continuity test.
Note:
Audible indication: less than Typ. 30.0
Ω
.
5.7 Capacitance Measurement (Auto Range)
To measure capacitance, turn the Rotary Switch to the range of “F” or “Cx” at the upper-left
side of the Rotary Switch and insert the lead wire of capacitor to be measured into the socket
marked with “COM” (for capacitance “-”) and “F (+)” (for capacitance “+”) or Cx. (see figure
1).
Pressing the “SELECT” push button to disenable Auto Range and change to next Range.
Note:
1. “Cx” Range: 2000pF, 20nF, 200nF, 2uF, 20uF
2. “F” Range: 200uF, 2mF, 15mF (Max. measurement time 20 sec.)
Continuity
Indication
SELECT
Push Button
