24
Trigger and Remote Sensing Connections
A 4-pin connector and a quick-disconnect mating plug are provided on rear panel for accessing input signals and
remote sensing, all leads connected to the connector should be twisted and shielded to maintain the instrument's
specified performance.
Remote Sensing:
sense ( +
++
+ )
) )
)
and
sense
(
((
(
-
--
-
)
))
)
Used to connect the rem ote sensing leads to t he power source.
TRIG IN: TRIG (IN)
A TTL-compatible input that responds to external edge trigger signal. A trigger applied to this
input can be used to change settings (voltage, current, resistance, etc.), toggle between settings in transient-toggle
mode, or generate a pulse in transient-pulse mode.
TRIG GND: TRIG ( )
Provides the common connection for the trigger signals.
Turn-On Checkout Introduction
Successful tests in this chapter provide a high degree of confidence that the electronic load is operating properly.
Checkout Procedure
The test in this sect ion checks for prop er operation of the electronic load. If you have not alr eady done so, connec t the
power cord to the unit and plug it in
.
Procedure Display Explanation
1. Turn the unit on. The
electronic Load undergoes a
self-test when you First turn it
on.
During self test, all segments are briefly
lit
2. Wait for 1s after turn on
electronic load. EPROM ERROR
EEPROM damage or Lost data of last
power off
Run well if no such display, system will
go to the step 3 directly.
3. Wait for another 2 S. ERROR CAL.DATA
EEPROM Lost calibration data
Run well if no such display, system will
go to the step 4 directly.
4. Press Shift button and
△▽
keys .
LOAD MODEL:85XX
SN
：
XXX-XXX-XXX
VER x.xx
Display the information of the product
Type, series number version of
software.
5. Press
ESC
button 0.00 0V 0.000A Display the actual input voltage and
current value.