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1.2 Technical specifications
1.2.1 The main technical characteristics of the Oil tester:
1 Range of testing voltage (rms value), kV
2 Relative voltage measurement error, %
3 Volume of measuring cell, cm
4 Operating alternating voltage, V
5 Power supply frequency, Hz
6 Power consumption, kV×A, max
7 Weight, kg, max
8 Dimensions, mm, min
1.2.2 Duration of continuous work of the Oil tester is 8 hours.
1.2.3 Oil tester operates, retaining its design and parameters during and af-
ter exposure to external influencing factors:
External influencing factor
1 Ambient temperature, °C
– lower value
– upper value
2 Relative humidity, %
– lower value
– upper value
3 Atmospheric pressure, kPa
– lower value
– upper value
4 Shockproof on multiple shocks
– peak shock acceleration, m×sec
– duration of shock acceleration, ms
– quantity of shocks, pcs.
* Turning on the Oil tester after a long stay at a temperature below 5°C is allowed after pre-
exposure for 4 hours at a temperature from +15°C to +30°C
Type
3
, min
-2
5
UIM-90 (221)
UIM-90 (221/В)
UIM-90 (221/Р)
UIM-90 (221/ВР)
Extreme values of factors
Extreme conditions
Operating
Transporta-
conditions
tion
+15
–25*
+30
+55
10
10
75
100
70
70
106
106
30
–
1
80-120
Value
from 10 to 90
3
400
220 10
50/60
0,1
28
520×335×320
Storage
–25*
+55
10
100
70
106
–
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