MegOhmMeter
Specifications
23
Electrical Specifications
The meter’s accuracy is specified for 1 year after calibration at operating
temperatures of 0
°
C to 35
°
C. For operating temperatures outside the range
(
−
20
°
C to 0
°
C and 35
°
C to 50
°
C), add ± .25 % per °C, except on the 20 %
bands add ± 1 % per °C.
Insulation
Test Voltage (DC)
Insulation Resistance Range
Accuracy (+/- reading)
250 V
<200 k
Ω
200 k
Ω
to 5 G
Ω
5 G
Ω
to 50 G
Ω
>50 G
Ω
unspecified
5 %
20 %
unspecified
500 V
<200 k
Ω
200 k
Ω
to 10 G
Ω
10 G
Ω
to 100 G
Ω
>100 G
Ω
unspecified
5 %
20 %
unspecified
1000 V
<200 k
Ω
200 k
Ω
to 20 G
Ω
20 G
Ω
to 200 G
Ω
>200 G
Ω
unspecified
5 %
20 %
unspecified
2500 V
<200 k
Ω
200 k
Ω
to 50 G
Ω
50 G
Ω
to 500 G
Ω
>500 G
Ω
unspecified
5 %
20 %
unspecified
5000 V
<200 k
Ω
200 k
Ω
to 100 G
Ω
100 G
Ω
to 1 T
Ω
>1 T
Ω
unspecified
5 %
20 %
unspecified
Bar graph range:
Insulation test voltage accuracy:
Induced ac mains current rejection:
Charging rate for capacitive load:
0 to 1 T
Ω
-0 %, +10 % at 1 mA load current
2 mA maximum
5 seconds per
µ
F
Discharge rate for capacitive load
1.5 s/µF
Leakage current measurement
Range
Accuracy
1 nA to 2 mA
+/- (5 % + 2 nA)
Capacitive measurement
Range
Accuracy
0.01
µ
F to 15.00
µ
F
+/- (15 % of r 0.03
µ
F)
Timer
Range
Resolution
0 to 99 minutes
Setting: 1 minute
Indication: 1 second
Live circuit warning
Warning range: 30 V to 660 V ac/dc, 50/60 Hz
Voltage accuracy: +/- (5 % + 2 V)
Summary of Contents for 1550B
Page 4: ...1550B Users Manual ii...
Page 36: ...1550B Users Manual 30...
