User Manual

Table Of Contents
23
4.5.5 Over Temperature Protection (OTP)
When the load of internal power devices over 80 , the load temperature protection. In this case, the input
is OFF, the buzzer sounds and VFD displays the following message "OVERHEAT"
4.6 remote test function
In CV, CR, CP mode, when the load consumes large current, a voltage drop will be generated on the
connecting line between the instrument under test and the load terminal. In order to ensure the measurement
accuracy, the load provides a remote measuring terminal (S +, S-) on the rear panel, which can be used by the user
to measure the output terminal voltage of the DUT.
Users can set the remote measurement option in the MENU and press Shift + 0 (Menu), then press to load
"MENU SYSTEM SET" and press Enter to enter "Load" and "SYSTEM IMAX = xxxxxxxxA ", Press the up and down keys
to adjust, until the load appears" SYSTEM TERMINAL SEL "prompt, which is prompted to set the current remote test
function parameters, the user continues to press the Enter key to enter the load display" TERMINAL SELECT FRONT
"or" TERMINAL SELECT BACK " In this case, the user can adjust and select the remote test function parameters by
pressing the up and down keys and press Enter key to confirm. "TERMINAL SELECT FRONT" means that the input
source of the selected source is on the front panel and the remote test function of the rear panel is disabled.
"TERMINAL SELECT BACK" means that the input source of the selected source is on the rear panel and the front
panel's input is disabled. At this time, Press Esc to exit the MENU main menu.
Please note that the input terminals of the front panel and the rear panel can only be valid at any time. If the
user finds that the load display voltage is near zero without any change of signal, please check whether the
connection mode is in phase with the remote test function match.
4.7 battery discharge test operation
Experiments show that the best way to determine whether the battery is working with a load test. Only by
performing the correct load test can you determine if the battery is at the expected life curve position. The
PEL-8150 series of electronic loads can test any type of battery used today.
For any protective equipment or non-interruptible service system used by the battery system, the load test is
essential. Because in a system, the battery is almost the lowest reliability components, it must be regularly carried
out load test to ensure the reliability of the battery
Capacity test
The PEL-8000 Series electronic load uses constant current mode for capacity testing. Programmable
shutdown level, when the battery voltage is too low, the system determines the battery reaches the set threshold
or non-safety eve, automatically interrupt the test during the test can be observed battery voltage, discharge
current, load power and battery Discharge capacity. If used with PC supporting software, you can observe the
battery discharge curve in the discharge process. This test can reflect the reliability of the battery and its
remaining life, it is very necessary to replace the battery prior to such tests.
Operation method
1) In the standard constant current mode, adjust the battery discharge current value required
2) Press Shift + 8 (Battery) key, VFD displays END TEST VOLT = xxxxxxxxV, set the turn-off voltage, press
Enter to start the capacity test, the load will turn off automatically when the battery voltage drops to
turn-off voltage.
3) At this point you can press the On / Off button to start or pause the battery capacity test.
4) Press Shift + 8 (Battery) button, you can exit the battery capacity test status.