7-Segment Display Testing; Keypad And Calibration Sw Testing; Display A/D Internal Value Display; Rs-232 Serial Loop Back Testing - Excell Dingo EX2002 User Manual

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6-3-1 7-Segment display testing

The display will show
To exit press the

6-3-2 Keypad and calibration SW testing

Setting the calibration SW to "ON", or pressing any key will cause the related display
segment to change from

6-3-3 Display A/D internal value display

Display range is 0 ~ 520,000d (-0.1mV/V ~ 4.0mV/V). To exit press the

6-3-4 RS-232 serial loop back testing

Terminal pin 7 and pin 8 must be connected together at the rear of the indicator.
If display shows
the interface is not working correctly.

6-3-5 EEPROM memory testing

If the display shows
not working correctly.

6-3-6 Option interface card testing

OP-01 RS232/RS422/RS485 testing
1) RS232 testing
⇒
1, 2 short (Adjust J1~J4 mini jumper to 2, 3)
J1~J4
Terminal pin 1 and pin 3 must be connected together at the rear of the indicator.
If display shows
the interface is not working correctly.
2) RS422 testing
⇒
1, 2 short (Adjust J1~J4 mini jumper to 1, 2)
J1~J4
⇒
1, 2 short (Adjust J5~J6 mini jumper to 1, 2)
J5~J6
Terminal pin1 and pin 3, pin 2 and pin 4 must be separately connected together at the
rear of the indicator.
If display shows
the interface is not working correctly.
OP-02 BCD parallel output interface testing
1) A flashing decimal point indicates the test procedure is active.
2) Program will transmit OFF → ON → OFF signal for each output bit of the BCD interface in
sequence.
04011010
~ , then display "
key
→ . To exit press the
, the interface is working normally. If display shows
, it means normal. If the display shows
, the interface is working normally. If display shows
, the interface is working normally. If display shows
. " and all of the icons.
key
57
key
,
, the memory is
,
ZSME400000002