KYORITSU 3147A - Manual (Page 6)

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¡ Applicable standards
IEC 61557
IEC 61010-1 Measurement CAT.III 300V/ CAT.II 600V
Protection class II
Location for use: altitude 2000m or less
IEC 61010-031
IEC 60529
IP40
¡ Measuring range and accuracy
<Insulation resistance range>
* Heavy-line circular arc on the scale indicates the primary effective
measuring ranges. (guaranteed accuracy range)
３．Specification
MODEL
Nominal voltage
Max. effective
scale value
Mid-scale value
Accuracy in
primary effective
measuring ranges
Accuracy in
primary effective
measuring ranges
Accuracy at 0
and ∞
Accuracy at
no-load voltage
Nominal current
Short-circuit
current
Response time
3144A
3147A
500V
100MΩ
2MΩ
0.1∼
50MΩ
within ±5% of indicated value
Measuring ranges other than above, 0 and ∞.
within ±10% of indicated value
within ±0.7% of scale length
0%∼ +20% of nominal voltage
1mA 0%∼+20%
Approx. 2mA
Meter reading comes within accuracy within 3 sec.
(It may take time when measuring a capacitive
load.)
250V
50MΩ
1MΩ
0.05∼
20MΩ
125V
20MΩ
0.5MΩ
0.02∼
10MΩ
50V
10MΩ
0.2MΩ
0.01∼
5MΩ
100V
20MΩ
0.5MΩ
0.02∼
10MΩ
3145A
3148A 3146A 3148A
3147A