Kilovoltmeter electrostatic S197 (S 197, S-197, c197, c 197, c-197)
Kilovoltmeters electrostatic S197 (hereinafter - kilovoltmeters), portable and embedded in a rack designed to measure DC and AC current in a wide range of frequencies in circuits with a grounded pole at an ambient temperature of 10 to 35 ° C and relative humidity up to 80% at 25 ° C.
To work in a tropical climate is kilovoltmeter S197 electrostatic 04.1.
Pressure ranges 0-7.5 kV, 0-15kV, 0-30kV. Measuring range -7.5 kV 2 kV, 4 kV, 15 kV, 8 kV, 30 kV.
Standard conditions for use S197:
ambient temperature (20 ± 5) ° C;
relative humidity 30-80%;
atmospheric pressure 84-106 kPa (630-800 mm Hg);
frequency of the measured voltage (50 ± 0,5) Hz position kilovoltmeter vertical ± 1 °;
kilovoltmeter not install on a steel shield (non-ferromagnetic base).
Operating conditions S197:
Ambient temperature 10-35 ° C;
operating frequency range - AC and DC 20 Hz:
10 MHz - in the range of 0-7.5 kV readings;
8 MHz - With a range of indications 0-15kV;
5 MHz - in the range of 0-30kV testimony;
extended frequency range from 10 to 14 MHz - in the range of 0-7.5 testimony to B.
Kilovoltmeter electrostatic S197 provides a voltage measurement without limiting the duration of continuous operation, but in the range of 0-30 kV readings in the frequency range from 2 to 5 MHz, the duration of continuous operation for more than 5 minutes. followed by removing the voltage for at least 1 h. Running time kilovoltmeter with power light indicator lamps on the built-in battery DC current is less than 2 hours
The limit of the permissible basic error (hereinafter - the permissible basic error) S197 and maximum permissible variations in readings is ± 1% of full scale measurement range under normal conditions of use.
Maximum permissible here more (hereinafter - of additional) S197 error caused by changes in ambient temperature from the normal (20 ± 5) ° C and any temperature within the range of from 10 to 35 ° C for every 10 ° C change in temperature is equal to 0, 5 of the maximum permissible basic error.
The limit of additional error S197 caused by a deviation from the normal frequency (50 ± 0,5) Hz to:
5 MHz for all ranges of indications is 0.25 of the maximum permissible basic error;
the upper limit of the working frequency range for ranges 0-7.5 and 0-15 kV equal to the limit of intrinsic error;
the upper limit of the extended frequency range of 14 MHz to reading range 0-7.5 kV, the limit is twice the permissible basic error.
The limit of additional error S197 Percentage caused by frequency deviation from normal to any frequency in the working frequency range is given by γ f = f 2 × 10 -2, where f - frequency voltage measured in MHz.
Input capacity in any range of indications is less than 15 pF. Self-resonant frequency is below 100 MHz. Response time less than 4 seconds. The permanent deflection of a light pointer from the zero of the scale is not more than 1.5 mm, the slope pa 5 ° - not more than 2.5 mm.
The lamp indicator light is on AC, 50 Hz, 220V or embedded battery voltage direct current (6 ± 0,5) V, which consists of four elements, such as type 373 (TU 16-563.033-86) or other similar type .
The insulation between the high voltage electrode and connected to the supply circuit in normal conditions of use stands:
16KB - the range of 0-7.5 kV readings;
26kv - in the range of 0-15kV testimony;
45kv - in a range of indications 0-30kV, 2 kV - between the chain and case.
High insulation resistance of the electrode relative to the housing at least 104 megohms under normal conditions of use. Insulation resistance of the power supply relative to the body under the same conditions for at least 40 megohms. Dimensions 250h490h230 mm. S197 Weight no more than 8.5 kg.