METREL Instaltest 61557 MI 2087, Инструкция по эксплуатации

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MI 2087 Instaltest 61557 Measurement instructions
16
Notes!
•
In case of present external voltage higher than 29 V a.c./d.c. between test
terminals, the Insulation Resistance measurement will not be carried out after
pressing
START key, but the voltage will be displayed, equipped with “!” mark!
Beep warning sound will be affected too.
•
Tested object is discharged automatically after finishing the measurement,
actual voltage is displayed during discharging, until the voltage drops below
30 V!
• If test result is out of measurement range (open test leads or good isolation),
>1000 M
Ω
Ω Ω
Ω
message will be displayed (U
N
≥
250 V) or >200 M
Ω
Ω Ω
Ω
(U
N
<
250 V)!
• Positive pole of test voltage is attached to blue test lead (Universal test cable) or
to commander test tip (Tip Commander)!
•
bat message, displayed during or after finishing the measurement means
batteries are too weak to guarantee correct result. Replace the batteries.