SECTION 7: CONNECTORS, APPLICATIONS & PROTECTION FEATURES
Entire Contents Copyright
2014 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
42L Series Modular DC Load Operation Manual
Page 42 of 88
KEY# Description
13
LEVEL key and LED
The LEVEL key is used to toggle between the High and Low load setting value. This applies in static
mode only. In the Dynamic Constant Current mode, the High and Low level are used to define levels
of the dynamic waveform.
1.
In Constant Current mode: The level is initially set to High. LEVEL High / Low has two levels,
Low current level setting must be lower than Level High.
2.
In Constant Resistance mode: The level is initially set to High. LEVEL High / Low has two
levels, Low resistance level setting must be higher than Level High.
Note:
CR Mode Level High / Low level by current perspectives.
3.
In Constant Voltage mode: The level is initially set to High. LEVEL High / Low has two levels,
Low voltage level setting must be lower than Level High.
4.
In Constant Power mode: The level is initially set to High. LEVEL High / Low has two levels,
Low power level setting must be lower than Level High.
Note:
Automatic level function: The High level setting must be higher or equal than Low level
setting. When High level is equal to Low level, no further adjustment is possible.
When the High level equals the Low level, the Automatic level function will adjust the Low level
value so the High level value can continue to be adjusted.
14
PRESET ON/OFF key and LED
In PRESET OFF state, the load input voltage is shown on the upper 5-digit meter, and load input
current is shown on the middle 5-digit meter. The load input power is shown on the lower 5-digit
meter. The engineering unit "V", "A" and "W" LCDs will be lit respectively.
In Preset ON state, the PRES. LED is ON, the lower 5-digit meter display will be determined by the
CC, Dynamic, CR, CV, and CP operating mode.
In Preset ON condition, the 5 digit DAM indicates the set load current, which can be from front
panel or remote control interface setting.
1.
In Constant Current mode: The High / Low level load current value can be pre-set on the
lower 5 digit LCD display. The unit is "A" and the "A" will be lit as well.
2.
In Dynamic load mode: The Thigh / Tlow parameters value of High / Low load current
duration and Rise / Fall setting can be displayed on the lower 5 digit LCD display. The unit is
"ms" and the "ms" will be lit as well.
3.
In Constant Resistance mode: The High / Low level load resistance value can be pre-set on
the lower 5 digit LCD display. T
he engineering unit is "Ω"
and
the "Ω" will be lit as well.
4.
In Constant Voltage mode: The High / Low level load voltage value can be pre-set on the
upper 5 digit LCD display. The unit is "V" and the "V" will be lit as well.
5.
In Constant Power mode: The High / Low level load power value can be pre-set on the
upper 5 digit LCD display. The unit is "W" and the "W" will be lit as well.