Amprobe PM55A User Manual page 14

precautions to avoid misleading results when making measurements in the presence of electronic
interference.
Accessories
H-PM protective holster, VC3 soft carrying pouch, battery installed, and User's manual
Electrical Specifications
(Accuracy @ 23 °C ± 5 °C and < 75% R.H.)
RF Field @ 3 V/m: Specified accuracy + 45 d (Capacitance not specified)
DC Voltage
6.000 V
60.00 V
450.0 V
Input Impedance:
AutoTect Lo-Z V dc: 833 kΩ (4.2 kΩ when displaying AUTO),
90 pF nominal
MRR: > 30dB @ 50 Hz/60 Hz
CMRR: > 100dB @ DC, 50 Hz/60 Hz; Rs=1 kΩ
V dc AutoTect Threshold:
> +1.2 V dc or < -0.6 V dc nominal
Hi-Z V dc only
AC Voltage
50 Hz – 60 Hz
6.000 V, 60.00 V, 450.0 V, 600 V
CMRR: > 60 dB @ dc to 60 Hz, Rs=1 kΩ
Input Impedance: AutoTect
Hi-Z ACV: 5 MΩ, 90pF nominal

ACV AutoTect Threshold: > 1.5 V ac (50 Hz/60 Hz) nominal
Range
Range

Lo-Z V ac: 160 kΩ, 160 pF nominal
±(0.5%+3 dgt)
±(1.0%+5 dgt)
±(1.2%+5 dgt)
±(1.5%+5 dgt)
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Accuracy
Accuracy