Measure of resistance R40112 (R 40112, R-40112, p40112, p 40112, p-40112)
It is intended: to transmit electrical resistance values ​​of exemplary steps in R40112 measuring DC circuits by parallel-to-serial shift stages (MPES), for use as a multi-valued electrical resistance measures R40112 (MMES) - a measuring circuit DC.
The nominal value of resistivity of 10 ⁶Ohms
Dimensions 215x132x255mm.
Accuracy class 0.01-0.02.

Measure transient electrical resistance R40112
1 Product Overview
1.1. Measures resistance R40112 are:
to assign values ​​to the electrical resistance of the model measures R40112 in measuring DC circuit by parallel-to-serial shift stages (MPES);
for use as a multi-valued electrical resistance measures R40112 (MMES) - a measuring circuit DC.
1.2. Climatic performance by GOST 15150 - 69: for areas with temperate and cold climates - UHL 4.1, but the working conditions of application of measures R40112:
ambient temperature (20 ± 5) ° C (for R40115 - [20 ± 10] ° C);
relative humidity 25 to 80%;
84-106.7 kPa atmospheric pressure (630-800 mm Hg).

2 Specifications

2.1. Basic R40112 measures given in Table 1.
2.2. The maximum and nominal values ​​to the level of power dissipation and voltage applied to the extent indicated in the table are equal. 1.
2.3. Measures R40112 restored, repaired, multifunction products.
2.4. Limit of acceptable deviation of the actual value of the resistance measures R40112 (MMES) of the nominal when initial verification (when it is shipped from the manufacturer) is 0.02% under normal conditions of use:
ambient temperature (20 ± 1) ° C;
relative humidity 25 to 80%;
84-106.7 kPa atmospheric pressure (630-800 mm Hg);
voltage or power is not over rated at 2.1.
2.5. Limit of acceptable deviation of the actual value of the resistance measures R40112 (MPES) of the nominal when initial verification (when it is shipped from the manufacturer) is 0.01% under normal conditions of use according to item 2.4.
2.6. Transfer error values ​​of electrical resistance is less than 0.0002% (MPES) under normal conditions for item 2.4 and additions:
R40112 measures the temperature change (environmental) for the transmission of values ​​of electrical resistance of not more than 0,2 ° C, as the voltage is not above nominal conditions, shown in Table 1.
2.7. Permissible change in resistance measures R40112 (MPES) for the year (instability) from the date of the first certification does not exceed the values ​​pp.2.4, 2.5.
2.8. The limit of additional error measures R40112 caused by changes in ambient temperature between the upper (lower) limit the range of normal conditions of use and by some point in the related field of application of the operating temperature corresponding to the maximum change in R max, is numerically equal to the value of the maximum permissible basic error of claim. 2.4, 2.5.
2.9. The limit of additional error measures R40112 as a percentage of its nominal value when the power dissipation from nominal to any value not exceeding the maximum capacity under normal conditions of use and the steady state of thermal equilibrium, which is numerically equal to the value of the maximum permissible basic error pp.2.4, 2.5.
2.10. The limit of additional error measures R40112 as a percentage of its nominal voltage changes from nominal to any value that does not exceed the maximum voltage under normal conditions of use and the steady state of thermal equilibrium, which is numerically equal to the value of the maximum permissible basic error pp.2.4, 2.5.
2.11. The insulation between the casing and insulated from the housing of DC electrical circuit measures R40112 stand for 1 min. test voltage of the AC frequency (50 ± 1) Hz, peak value of which is equal to 7 kW. You may use the test voltage direct current value of 7 kV.
2.12. The insulation resistance between the case and the isolated DC voltage circuit R40112 measures that have a special device to reduce the effects of leakage currents in the working conditions of application of at least 5 • 1013 ohms.
2.13. Norma MTBF measures R40112 including maintenance of the regulated operational documentation, 10000 hours
MTBF is set for the working conditions and the voltage is not lower than the nominal. The criterion of failure is the mismatch measures R40112 requirements of paragraph 2.5.
2.14. The mean time to repair the state measures R40112 1 hour
2.15. Full average life measures R40112 10 years.
2.16. Installed failure operating time for the working conditions and the maximum voltage (power) applied to the least 800 hours of failure criterion is the discrepancy measures R40112 requirements of paragraph 2.5.
2.17. Specified service life measures R40112 3 years.
2.18. The content of non-ferrous and precious metals in the R40112 measures indicated in Table 1.