Brymen EEVblog BM235 - Electrical Specs: VFD, AutoV, DC Voltage Accuracy; VFD AC Voltage Accuracy; AutoV AC Voltage Accuracy; DC Voltage Accuracy

VFD_ACV (with Low Pass Filter )
RANGE Accuracy
1)
10Hz ~ 100Hz (fundamental)
600.0V, 1000V 1.0% + 3d
100Hz ~ 400Hz (fundamental)
600.0V, 1000V 10% + 3d
2)
1)
Not specified for fundamental frequency > 400Hz
2)
Accuracy linearly decreases from 1% + 3d @100Hz to 10% + 3d @400Hz
AutoV_ACV (Model 235 only)
RANGE Accuracy
1)
45Hz ~ 440Hz
600.0V, 1000V 2.0% + 3d
1)
Not specified at <1VAC
Threshold: > 1VAC nominal
Input Impedance:
Initially approx. 2.1k, 164pF 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:
12k @100V
100k @300V
240k @600V
580k @1000V
DC Voltage
RANGE Accuracy
60.00mV, 600.0mV, 6.000V 0.3% + 2d
60.00V 0.4% + 2d
600.0V 0.2% + 2d
1000V 0.4% + 2d
Input Impedance: 10M, 54pF nominal
21