MI 2140 MI 2140 Omega &BetaPAT Instrument description
9
10. Cursor keys:
• UP / DOWN key, to increase / decrease edited value,
• LEFT / RIGHT key, to move between edited values,
• ENTER key, to confirm selection in menu.
11. Keyboard.
12. STOP key.
13. START key.
14. ESC key, to return to previous page in menu.
15. Function keys, to set various parameters in each function. The purpose of a
specific key in each function is marked on display.
16. RS 232 connector for communication with a PC.
17. Barcode reader / printer connector.
2.2. Instrument messages
Description of displayed messages:
L and N are CROSSED.
Press Start to continue
Check the wiring of supply.
Mains voltage is not correct
or PE not connected.
Check Mains voltage and PE
connection!
Check for incorrect wiring of supply – there is no
earth connection or mains voltage is incorrect.
L-N RESISTANCE TOO HIGH
(>30 kΩ)
CHECK SWITCH OR FUSE
Do you wish to PROCEED
(Y/N)?
Resistance between L and N of appliance under
test is higher than 30 kΩ – check the appliance
power switch or fuse.
L-N SHORTED (< 3.0 Ω)
Do you wish to PROCEED
(Y/N)?
Resistance between L and N of appliance under
test is lower than 3 Ω - possible short-circuit or
high inrush current – check the appliance.
L-N RESISTANCE TOO LOW
( 8.0 Ω)
Do you wish to PROCEED
(Y/N)?
Resistance between L and N of appliance under
test is lower than 20 Ω - current may be higher
than 16 A – check the appliance.
LEAKAGE TOO HIGH
( >20.0mA)
Do you wish to PROCEED
(Y/N)?
Leakage current in pre-test is too high –
potential danger to operator and damage to
appliance if test is continued.
NAME OF TEST
Test was skipped for SAFETY
Potential hazardous tests were skipped because
one or more results were out of limit in
measurements of earth bond, insulation or
substitute leakage.
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