Elma BM22 Bedienungsanleitung Seite 40

Accuracy is given as +/- (% of reading digits + number of digits) or otherwise specified @ 23
o
5 C and less than 75% R.H.
DC Voltage (BM25 & BM27)
RANGE
6.000V
60.00V
1)
450.0V
2)
600.0V
3)
600.0V
BM25 Input Impedance:
TM
AutoCheck Lo-Z DCV: 160kΩ, 160pF nominal
BM27 Input Impedance:
TM
AutoCheck Lo-Z DCV: 833kΩ (4.2kΩ when displaying "Auto"), 90pF nominal
Hi-Z DCV: 5MΩ, 90pF nominal
NMRR: > 30dB @ 50Hz/60Hz
CMRR: > 100dB @ DC, 50Hz/60Hz; Rs=1kΩ
TM
DCV AutoCheck Threshold:
> +1.2VDC or < -0.6VDC nominal
1) TM
BM25 AutoCheck
2) TM
BM27 AutoCheck
3)
BM27 Hi-Z DCV only
DC Voltage (BM22)
RANGE
400.0mV
4.000V, 40.00V, 400.0V
600V
NMRR: > 50dB @ 50Hz/60Hz
CMRR: > 120dB @ DC, 50Hz/60Hz; Rs=1kΩ
Input Impedance: 10 MΩ, 30pF nominal; (1000MΩ for 400.0mV range)
AC Voltage (BM25 & BM27)
RANGE
50Hz -- 60Hz
6.000V, 60.00V, 450.0V
CMRR: > 60dB @ DC to 60Hz, Rs=1kΩ
BM25 Input Impedance:
TM
AutoCheck Lo-Z ACV: 160kΩ, 160pF nominal
BM27 Input Impedance:
AutoCheckTM Lo-Z ACV: 833kΩ (4.2kΩ when displaying "Auto"), 90pF nominal
Hi-Z ACV: 5MΩ, 90pF nominal
TM
ACV AutoCheck Threshold:
> 1.5VAC (50/60Hz) nominal
1)
Range for BM25 only
2)
Range for BM27 only
Elma 22 - 25 - 27
DCV only
DCV only
1) 2)
, 600.0V
side 39
o
C +/-
Accuracy
0.5%+3d
1.0%+5d
1.2%+5d
2.0%+5d
1.5%+5d
Accuracy
1.0%+2d
2.0%+2d
2.5%+4d
Accuracy
1.5%+5d