Vaisala DRYCAP DMT340 SERIES Guía de usuario Pagina 118

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USER'S GUIDE____________________________________________________________________
118 _________________________________________________________________ M210704EN-E
Analog Output Tests
Use the display/keypad for testing to test the operation of the analog by
forcing the outputs to known values. Measure then the values with a
current/voltage meter.
Use the display/keypad for testing.
1. Press any of the arrow buttons to open the MAIN MENU.
2. Select System by pressing the arrow button.
3. Select Diagnostics by pressing the arrow button.
4. Select Analog output tests by pressing the arrow button.
5. Select one of the testing options Force 0 %/50%/100% of scale.
Press TEST to confirm your selection. All outputs are tested
simultaneously. The actual output value depends on the selected
range.
6. Press OK to stop testing. Press EXIT to return to the basic display.
ITEST
Use the serial line to test the operation of the analog outputs. Use the
command ITEST [aa.aaa bb.bbb] to force the analog outputs to entered
values. The set values remain valid until you enter the command ITEST
without parameters or RESET the transmitter.
ITEST [aa.aaa bb.bbb]
where
aa.aaa
= Current or voltage value to be set for channel 1 (mA or V)
bb.bbb
= Current or voltage value to be set for channel 2 (mA or V)
Example:
>itest 20 5
Ch1 (Td ) : * 20.000 mA H'672A
Ch2 (T ) : * 5.000 mA H'34F9
>itest
Ch1 (Td ) : -23.204 'C 16.238 mA H'FFFE
Ch2 (T ) : 22.889 'C 8.573 mA H'5950
>
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