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6 Output A status display (OT = overtemperature)
7 Output A status display (CC = constant current)
8 Current adjuster for output A (AMPERE)
9 Status display when overvoltage cut-off active (OVER VOLTAGE)
10 Push switch for voltage range selection of output B USB-B1
11 Flashing status display while the push button (10) pressed in
12 Button for displaying the voltage and current of output USB-B1
13 Voltage adjuster for output B USB-B1 (V ADJ.)
14 Current adjuster for output B USB-B1 (A ADJ.)
15 Processor-controlled USB output B USB-B2
16 Adjustable USB output B USB-B1
17 Level adjuster for overvoltage cut-off (OVP ADJ.)
18 Button to display the set level for overvoltage cut-off
19 “Earth potential” connection socket
20 Negative of output A connection socket
21 Positive of output A connection socket
22 “C-LIMIT” button for displaying and setting the current limitation of output A
23 USB symbol indicates the display of output B USB-B1
24 Power indicator when the device is switched on
25 Feet on the front, folding
26 Rear heat sink
27 Fuse holder for the mains fuse
28 Earthed low-power connection for mains cable
5.2.1. Explanation of symbols
The following symbols appear on some controls.
Button pressed symbol
Control range symbol. The arrow shows the
direction of increase.
Button not pressed symbol
