FLIR DM92, User Manual

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FLIR DM92 USER GUIDE Document Identifier: DM92 ‐ en ‐ US_AB 23
7.2 Electrical Range Specifications
Table 7.1 Voltage. Resolution of specifications in the 3 ¾-digit mode.
Mode Range Accuracy
DC
40.00 mV 0.05%+3d
400.0mV
0.05%+1d
4.000 V
40.00 V
400.0 V
1000 V
40 Hz to 70 Hz 70 Hz to 1 kHz 1 kHz to 5 kHz 5 kHz to 20
kHz
1
AC
40.00 mV 0.5% + 2d 1.0% + 4d 2.0% + 4d Unspecified
400.0mV
0.5% + 2d 1.0% + 4d 2.0% + 4d 2.0% + 20d
4.000 V
40.00 V
400.0 V 0.5% + 2d 1.0% + 4d 2.0% + 4d
2
Unspecified
1000 V 0.5% + 2d 1.0% + 4d Unspecified Unspecified
1. Below 10% or range, add 10d to accuracy.
2. Frequency range 1k to 2k Hz
Input protection: 1000 V DC or 1000 V AC RMS
Input impedance:

mV: 1 M Ω , <100 pF.

V: 10M Ω , < 100 pF.
Bandwidth: 40 Hz to 20kHz.
Minimum resolution: 1 µV in the 40 mV range.
CMRR/NMRR (common/normal mode rejection ratio):

V AC: CMRR > 60 dB at DC, 50 Hz/60 Hz.

V DC: CMRR > 100 dB at DC, 50 Hz/60 Hz.

NMRR > 50 dB at DC, 50 Hz/60 Hz.
AC conversion type: AC coupled, true RMS responding, calibrated to the sine wave input.
For non ‐ sine waves, add the following crest factor corrections:

For a crest factor of 1.4 ‐ 2.0, add 1.0% to the AC accuracy.

For a crest factor of 2.0 ‐ 2.5, add 2.5% to the AC accuracy.

For a crest factor of 2.5 ‐ 3.0, add 4.0% to the AC accuracy.