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• The output voltage for both outputs can be set with the “VOLT” rotary control (4) of output A.
• The voltage value “V” is displayed on the display (3 or 21).
In normal mode, the device operates in constant voltage mode. This means that the power supply emits a
constant, preset output voltage. This operation is indicated with a green status display “CV” (5 or 16).
Setting the current limitation of output A or C
• Limiting the output current is a protective mechanism to protect the consumer or connecting cables. Current limita-
tion can be preset without short-circuit at the output. The power supply supplies the maximum preset current.
• Disconnect consumers connected to output A (36 and 37) and output C (28 and 29). Before setting the current
limitation, always set the correct output voltage.
• Turn the “AMPERE” rotary control (8 or 19) fully to the left (neutral position).
• Press and hold the “C-LIMIT” button (30 or 38) during setting. The respective output is switched off automatically
when the “C-LIMIT” button is pressed. The voltage display then returns to approx. 0.
• The max. current strength (current limitation) can be set with the “AMPERE” rotary control (8 or 19). After complet-
ing setting, release the “C-LIMIT” button. The display shows the actual current strength again (with output 0.00 A
unloaded). The “CV” status display (5 or 16) lights up.
• Connect the consumer to output A (36 and 37) or output C (28 and 29) and switch it on. Pay attention to the polarity.
• The “CC” LED display (7 or 18) lights up as soon as the set current level is exceeded and current limitation is active.
Constant current mode is active.
If the preset current strength is reached in normal mode, the power supply switches to current limitation
mode and reduces the voltage value. This operation is indicated with a red “CC” status display (7 or 18).
6.4.8. USB output
Two independent USB charging outputs are available. The settings and safety cut-offs of output A and C do not affect
the two USB ports.
The output voltage and current limitation can be continuously adjusted at output USB-B1 (33).
The output parameters at output USB-B2 (31) are automatically processor-controlled for optimal setting according to
the terminal device that is connected.
Setting the output voltage and current of output B USB-B1
Output B USB-B1 enables the USB-typical voltage of 5 V/DC variable from either 4.0 - 5.1 V/DC or 4.0 - 6.2 V/DC for
development purposes. The current limitation can also be preset.
The setting range can be set with the “MODE” push button (11).
Switch symbol
Voltage range
Switch not pressed
4.0 - 5.1 V/DC
Switch pressed
“ENG” display (12) flashes.
4.0 - 6.2 V/DC
• Disconnect consumers connected to output USB-B1 (33).
• Press and hold the “SHOW VALUE” button (14) while setting the voltage. The display of output C shows the voltage
of output B USB-B1.
