Elma BM 82X & BM52X
Page 80
V
9.999V, 99.99V,
999.9V
3.0%+4d
3kHz ~ 20kHz
mV 60.00mV
1)
, 600.0mV
1)
2%+3d
9.999V, 99.99V
3dB
V
999.9V Unspec’d
1)
Specificied from 30% to 100% of range.
CMRR:
>60dB @ DC to 60Hz, Rs=1k
Ω
Input Impedance: 10M
Ω
, 50pF nominal (80pF nominal for 600mV range)
Residual reading less than 5 digits with test leads shorted.
AutoCheck
TM
(ACV)
RANGE
1)
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
Ω
, 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
Ω
@100V
125k
Ω
@
300V
320k
Ω
@
600V
460k
Ω
@
1000V
dBm
At 600
Ω
, -11.76dBm to 54.25dBm,
Accuracy:
±
0.25dB + 2d (@40Hz -- 20kHz)
Input Impedance: 10M
Ω
, 50pF nominal
Selectable reference impedance of 4, 8, 16, 32, 50, 75, 93, 110, 125, 135, 150, 200, 250,
300, 500, 600, 800, 900, 1000, 1200
Ω
DC Voltage
Function RANGE
Accuracy
60.00mV 0.12%+2d
mV
600.0mV 0.06%+2d
V 9.999V,
99.99V,
999.9V
0.08%+2d
NMRR:
>60dB @ 50/60Hz
CMRR:
>110dB @ DC, 50/60Hz, Rs=1k
Ω
Input Impedance: 10M
Ω
, 50pF nominal (80pF nominal for 600mV range)