MI 2087 Instaltest 61557
Measurement instructions
43
Step 3
•
Press the
START
key and release it. Measurement will be carried out and result
displayed afterwards.
•
Check calculated Prospective Short-circuit Current, pressing the
DISPLAY
key.
The current is calculated as follows:
Ipsc = Un
⋅⋅⋅⋅
1,06 / R
L-N(L)
Where:
Un ....................115 V (100 V
≤
U
L-N
<
160 V)
230 V (160 V
≤
U
L-N
≤
264 V)
400 V (264 V
>
U
L-N
≤
440 V)
•
Store displayed results for documentation purpose; see instructions how to store
it in chapter 4.1. Storing of test results.
Notes!
•
Nominal input voltage range is 100
÷
440 V, if input voltage is out of the range,
the voltage value equipped with
“!”
mark will be displayed after pressing
START
key. Warning sound signal will be effected too.
•
If test result is out of display range,
>1999
Ω
Ω
Ω
Ω
message will be displayed!
•
Specified accuracy of tested parameters is valid only, if mains voltage is stabile
during the measurement!
•
bat
message, displayed during or after finishing the measurement means
batteries are too weak to guarantee correct result. Replace the batteries.
