METREL MultiServicerXD MI 3325, Инструкция по эксплуатации

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MI 3325 MultiServicerXD Single tests
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B: Calculator
Continuity and PE_conductor(PRCD) resistance limit is calculated by the formula:
𝑅 = 𝜌
𝐿
𝐴
+ 0.1Ω
Where:
ρ ............... specific resistance of copper 1,68×10
−8
Ωm
L ...............
wire length selected from a list (1 m, 2 m, 3 m, … ,100 m) or Custom numeric entry
A ............... wire cross section selected from a list (0.50 mm
2
, 0.75 mm
2
, 1.00 mm
2
, 1.50 mm
2
,
2.5 mm
2
, 4.0 mm
2
, 10.0 mm
2
) or Custom numeric entry
C: Custom
Continuity and PE_conductor(PRCD) resistance limit is directly selected from a list (Off,
0.01
Ω … 0.09 Ω, 0.1 Ω … 0.9 Ω, 1 Ω … 9 Ω) or H Limit Custom numeric entry.
Procedure and parameter selection

Select Limit Calculator from options panel of
Continuity or PE_conductor(PRCD) test screen to
open Limit Calculator screen.

Select Limit rule by using on-screen or keyboard
arrow keys.
Alternatively, selection is possible from the list.
By taping on the Limit rule field, list of available
Limit rules is presented. Tap on the chosen rule
field and screen returns to Limit Calculator.

Select parameters value for chosen Limit rule by
using on-screen or keyboard arrow keys.
By tapping on parameter field, value can be
selected from presented list.
Calculator rule allow custom value Length and
Cross section entry with on-screen keyboard, when
Custom is selected from the value list.
Examples of parameter value lists:
-VDE rule Length parameter list
-Calculator rule Length parameter list
-Calculator rule Cross section parameter list.
Speed up parameters selection with:
-using scroll bar on the right side of the screen,
-keyboard right / left keys for page up / down.
Custom rule is intended for direct H Limit entry.
Select value from the list:
- by using arrow keys,
- tap on the field to open list and chose value,
-or enter value with on-screen keyboard after