Array electronic 372 Series User Manual

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603 System ADC test failed
607 Rundown too noisy
608 Keypad self-test error
609 EEPROM checksum failed
630 Temperature test failed
If there is no error is detected, the LCD will show CCH, the initial display, and the input will
be turned off. If the parameters was modified previously and saved in location 0, the load will
recall these modified parameters automatically. After around 20 minutes’ warm-up of the load,
the following test can be executed:
Connect the output of a power supply to the load’s input with correct polarity to execute
CCH 5A and CV 5V operations. If the load works normally, it will draw 5A or set input voltage
to 5V within the allowed tolerance.
3.4 Connections on the Rear Panel
The rear panel of 372x Series electronic load is shown as fig. 3-1, which mainly includes
AC input part and communication interface part. The AC input part includes AC input socket,
Fuse holder, and Line voltage switch; the interface part includes RS-232 interface and the
interface for optional GPIB or USB.
Fig. 3-1
AC input:
AC power-line cord must be appropriate for your local standard.
The specifications of the fuse: 250V 315mA.
Line voltage switch can select 110V or 220V. The selected voltage should be in
accordance with the proper voltage in your local place.
Communication Interfaces:
RS-232 Interface:
The load provides a RS-232 interface, which is a standard DB9 pin connector using DTR
and DSR to execute flow control. The pin assignment is shown below:
Pin Input/Output Description
1 - Not used
2 Input RXD Receive data
3 Output TXD Transmit data
4 Output DTR Data terminal ready
5 Common GND Ground
6 Input DSR Data set ready

Array electronic 372 Series Specifications

General

Brand	Array electronic
Model	372 Series
Category	Power Supply
Language	English