Operation Manual

Elma 22 - 25 - 27 Page 53
40.00MΩ
2.5%+4d
Open Circuit Voltage: 0.4VDC typical
Hz Frequency (BM25
1)
& BM27
1) 2)
)
RANGE Accuracy Specified at
10.00Hz -- 30.00kHz
1) 2)
< 20V Sine-rms
10.00Hz -- 999.9Hz
2)
0.5%+4d
< 600V Sine-rms
Sensitivity (Sine-rms):
1)
Hz in Auto-VΩ position: > 3V
2)
Line-level Hz in V position (BM27 only):
@ 6.000VAC range: > 3V
@ 60.00VAC range: > 6V
@ 600.0VAC range: > 60V
Hz Frequency (BM22)
RANGE
1)
Accuracy
5.000Hz -- 1.000MHz 0.5%+4d
1)
Specified at Input Voltage < 20VAC rms
Input Signal: Sine-wave, or Square-wave with duty cycle > 40% & < 70%
Sensitivity (V-peak):
5Hz -- 100kHz: > 1.3Vp
100kHz -- 500kHz: > 2.2Vp
500kHz -- 1MHz: > 4.2Vp
Diode Tester (BM22 & BM27 only)
Test Current (Typical)
Open Circuit Voltage
0.25mA for BM22
0.48mA for BM27
< 1.6VDC
DC μA Current (BM27 only)
RANGE Accuracy Burden Voltage
400.0μA
1.5%+3d
6mV/μA
2000μA
1.2%+3d
6mV/μA
AC μA Current (BM27 only)
RANGE Accuracy Burden Voltage
50Hz -- 60Hz
400.0μA
2.0%+3d
6mV/μA
2000μA
1.5%+3d
6mV/μA
Audible Continuity Tester
Open Circuit Voltage: 0.4VDC typical
Audible Threshold:
BM25 & BM27: between 50Ω and 300Ω
BM22: between 10Ω and 120Ω