25
25
<MEAS DISPLAY> Page
Take 3 series and 2 parallel, 10W LED constant current source for example as below to
illustrate the test method.
Specification:
LED constant current source
Constant power: 10W
Output voltage: DC7~12V
Output current: 900mA
5%
The test method is as below:
If the current mode is not in constant voltage mode
Step 1
Press[Meas] to enter <NRM MEAS PAGE> Page
Step 2
Use soft-key to choose [CV]
Step 3
Use [
◀
] and [
▶
] key to choose output setting digit
Step 4
Use[
▲
] key and[
▼
] key to change the value of setting digit, it can automatic carry or
abdicate or you can use numeric keypad to input set value, press [Enter] key and finish the
setting.
Here we input MAX value 12V (it is equivalent to resistance value 12/0.9 = 13.3
), if
you want to simulate a resistance value, you need to convert to voltage value, for
example, simulation 10
resistance, the pre-set voltage = 10x0.9 = 9V
Step 5
Press q key to boot the load, voltage value is constant as set value, load will operate
normally.
3.3
<SHT MEAS PAGE> Page
Press [Setup] key, then press function key [SHT] to enter <SHT MEAS PAGE> Page.
Figure 3-7 <SHT MEAS PAGE> Page
Short-Circuit [SHT] Page mainly highlights the measured results, and display main
parameter and sub parameter.
AT861x is allowed to simulate a short circuit at the input terminals of load.
If [SHT] mode is under CC/CP/CR mode, the instrument will set the maximum short
circuit current as limit value (when it is in 3A RANGE, the maximum current is around
Summary of Contents for Anbai AT8612
Page 40: ...40 AT8612 User s Guide ...
