Elma BM 82Xs &
BM52Xs
Page 59
DC
AC
& AC+DC
AC
Voltage
1)
Function
RANGE
Accuracy
DC, 50Hz ~ 60Hz
mV
60.00mV, 600.0mV
0.7% + 6d
V
9.999V, 99.99V, 999.9V
40Hz ~ 1kHz
mV
60.00mV, 600.0mV
1.0%+6d
V
9.999V, 99.99V, 999.9V
2.2%+6d
1kHz ~ 20kHz
mV
60.00mV
2)
, 600.0mV
2)
2.2%+6d
V
9.999V
3)
, 99.99V
3dB
999.9V
Unspec’d
1)
Specificied from 10% to 100% of range for Model 821
2)
Specificied from 30% to 100% of range.
3)
for 1kHz ~ 15kHz only
Input Impedance: 10M
, 50pF nominal (80pF nominal for mV ranges)
AutoCheck
TM
(ACV)
RANGE
Accuracy
50Hz ~ 60Hz
9.999V, 99.99V, 999.9V
1.0%+4d
Lo-Z ACV Threshold:
> 3VAC (50/60Hz) nominal
Lo-Z ACV Input Impedance:
Initially approx. 3.0k
, 150pF nominal; Impedance increases abruptly within a fraction of
a second as display voltage is above 50V (typical). Ended up impedances vs display
voltages typically are:
18k
@100V
125k
@ 300V
320k
@ 600V
460k
@ 1000V
Ohms
RANGE
Accuracy
600.0
, 6.000k
, 60.00k
, 600.0k
0.1%+3d
6.000M
0.4%+3d
60.00M
1.5%+5d
99.99nS
0.8%+10d
Open Circuit Voltage: < 1.2VDC (< 1.0VDC for 60M
range)
AutoCheck
TM
(Ohms)
RANGE
Accuracy
600.0
, 6.000k
, 60.00k
, 600.0k
0.5%+4d
6.000M
0.8%+3d
60.00M
1)
2.0%+5d
1)
Temperature Coefficient: 0.6 x (specified accuracy)/
o
C @(0
o
C ~ 18
o
C or 28
o
C ~ 45
o
C)
