80 Series V 
Calibration Manual 
8 
Table 11. Electrical Characteristics of the Terminals 
Function 
Overload 
Protection
1
 
Input 
Impedance 
(nominal) 
Common Mode  
Rejection Ratio  
(1 kΩ unbalance) 
Normal Mode Rejection 
L  1000 V rms  10 MΩ < 100 pF  > 120 dB at dc,  
50 Hz or 60 Hz 
> 60 dB at 50 Hz or 60 Hz 
F
 
mV
 
1000 V rms  10 MΩ < 100 pF  > 120 dB at dc, 
 50 Hz or 60 Hz 
> 60 dB at 50 Hz or 60 Hz 
K  1000 V rms  10 MΩ < 100 pF 
(ac-coupled) 
> 60 dB, dc to 60 Hz   
    Full Scale Voltage  Typical Short Circuit Current 
   
Open Circuit 
Test Voltage 
To 6.0 MΩ 
50 MΩ or 
60 nS 
600 Ω 6 k  60 k  600 k  6 M  50 M 
e  1000 V rms  < 7.9 V dc  < 4.1 V dc  < 4.5 V dc  1 mA  100 µA 10 µA 1µA 1 µA 0.5 µA
G  1000 V rms  < 3.9 V dc  3.000 V dc  0.6 mA typical 
10
6 
V Hz max
 
Table 12. MIN MAX Recording Specifications 
Model Nominal Response  Accuracy 
83  100 ms to 80 %  Specified accuracy ± 12 counts for changes > 200 ms in duration  
(± 40 counts in ac with beeper on) 
87, 88  100 ms to 80 % 
(dc functions) 
120 ms to 80 % 
(ac functions) 
250 µs (peak)
1
 
Specified accuracy ± 12 counts for changes > 200 ms in duration 
 
Specified accuracy ± 40 counts for changes > 350 ms and inputs > 25 % of 
range 
Specified accuracy ± 100 counts for changes > 250 µs in duration 
(add ± 100 counts for readings over 6000 counts)  
(add ± 100 counts for readings in Low Pass mode) 
1. For repetitive peaks: 1 ms for single events.