49501860.3.0009 РЭ
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1.2.8 Setting time of output signal is 1s.
1.2.9 Transducer withstands a long-lived break of a load circuit without failures. Output volt-
age at a break of a load circuits is no more than 30 V.
1.2.10 Transducer withstands 120% overload by an input signal during 2 hours.
1.2.11 Transducer withstands short-term overloads by input signal according to table 3.
Table 3
Current multiplicity Number of overloads Duration Interval between overloads
2
7
10
10
2
5
10 s
15 s
3 s
10 s
60 s
2,5 s
Output current, when overloading, is no more:
-30 mA for E842A;
-40 mA for E842C (when load resistance value is 500 Ohm).
1.2.12 Input Power Consumption:
Е842А………….……1 V⋅А
Е842С……………….1,5 V⋅А
1.2.13 Isolation between input and output circuits withstands a testing voltage of practically
sine-wave shape by frequency from 45 up to 65 Hz during 1 min:
- 2,5 kV RMS – in standard conditions;
- 1,5 kV RMS – to 95% R.H. at 35°C.
1.2.14 Electrical insulation resistance of input and output circuits relative to a case and among
themselves is not less:
-40 MΩ- in standard conditions;
-10 MΩ- to 80% R.H. at 50°C;
-2 MΩ- to 95% R.H. at 35°C
1.2.15 Overall dimensions ……. 70x80x77 mm.
1.2.16 Weight ………………… 0,3 kg.
1.2.17 Average error-free running time ….. 50000 hour.
1.2.18 Average durability………………….. 10 years.
1.3 Construction
1.3.1 General form of Transducer can be seen in Annex B.
1.3.2 Transducer has the following parts:
-Case;
-Cover;
-Component board;
-Measuring transformer;
-Latch.
1.3.3 The contacts established on a cover ensure strengthening a component board and
reliable contact of conductors of a plated circuit to the leads.
The cover is mounted to a case through four screws, which can be sealed up.
The latch ensures mounting the transducer to the rail or panel depending on variant of instal-
lation.
