APPA A1 - Page 9

A1
EN
1-2 Environmental Conditions
Indoor Use.
Maximum operating altitude : 2000m
(6562ft)
Operating temperature :
0°C ~ 30°C, ≤ 80%RH
30°C ~ 40°C, ≤ 75%RH
40°C ~ 50°C, ≤ 45%RH
Storage temperature :
-20 to +60°C, 0 to 80% RH (no batteries).
Temperature coe󰀩cient :
0.2 x (Specied accuracy) / °C, < 18°C, >
28°C
Pollution Degree : 2
Shock vibration : MIL-PRF-28800F for A class
2 Instrument
Drop Protection :
4 Feet Drop to hardwood on concrete Floor
1-3 Electrical Specications
Accuracy is given as ±(% of reading + counts
of least signicant digit) at 23°C ± 5°C,with
relative humidity Less than 80% R.H. and is
specied for one year after calibration.
ACV and ACA specications are ac
coupled,true R.M.S. The crest factor may be
up to 3.0 as 4000 counts.
For non-sinusoidal waveforms, Additional
Accuracy by Crest Factor (C.F.):
Add 3.0% for C.F. 1.0 ~ 2.0.
Add 5.0% for C.F. 2.0 ~ 2.5.
Add 7.0% for C.F. 2.5 ~ 3.0.
Position Error of Clamp: ±1.5% of LCD
reading.
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