AMETEK SLH Series RevB - Manual (Page 16)

Features, Functions and Specifications SLH-Series AC High Power Electronic Load
1-4 M540073-01 Rev C
1.3 OPERATING MODES
The work mode of SLH-series High Power AC Electronic Load includes Constant
Current (CC) and Constant Resistance (CR).
CC Mode:
During CC mode, the load current input into SLH-series High Power, AC Electronic Load
depends on the current setting regardless of the input voltage, i.e., the
current setting remains unchanged.
I
V
CC
LOAD
CURRENT
CURRENT SETTING
INPUT VOLTAGE
Figure 1-6 Characteristics of CC Mode
CR Mode:
During C.R. mode, the load current input into SLH-series High Power AC/DC Electronic
Load depends on the resistance setting. At this time, the load current is in direct proportion
to input voltage, e.g. the resistance setting remains unchanged. Please refer to Fig. 1.7
below
I
V
LOAD
CURRENT
INPUT VOLTAGE
RESISTANCE
SETTING
Figure 1-7 Characteristics of CR Mode
The load setting of SLH-series High Power AC/DC Electronic Load and the load condition
setting of the front panel can be made through front panel manual operation or through
GPIB commands. The load voltage and current can be transmitted to the computer through
GPIB bus. For operation of GPIB, please refer to Section 4 GPIB Operation