Amprobe AC71B, User Manual, Page: 11 / 96

88 9
Electrical Specifications
Accuracy
± (% r number of digits) at 3 °C ± 5 °C at < 80 % R.H.
Temperature Coefficient
Add 0. x (Specified Accuracy) / °C, < 8 °C, > 8 °C
Voltage
Function Range Accuracy
V
�
.3 V to 750.0 V
±(.5% + 3 dgts)
50 Hz – 500 Hz
V
�
. V to 000 V ±(% + dgts)
-0.7 V to 000 V ±(% + 4 dgts)
Overload Protection: 000 VDC / 750 VAC
Max Operation Time: DT = 30s for
≥
30 V
Input Impedance:
≥
4 k
Ω
for input voltage up to 30 V.
Impedance increases with input voltage to approximately 375
k
Ω
at 750 VAC.
Resistance and Continuity & Diode
Function Range Accuracy
Ω �
0
Ω
to 9999
Ω
±(% + dgts)
�
0.4 V to 0.8 V ±(% + 3 dgts)
Maximum Open Circuit Voltage: .0 V
Overload Protection: 000 VDC / 750 VAC
Continuity Check
Internal sound activates if the resistance of the circuit under
test is less than 5
Ω
. It will then turn off if the resistance is
increased beyond 400
Ω
. Specified from 0
°C
to 40
°C.