Реле счетчика времени ф738
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- url: https://besplatka.ua/ru/obyavlenie/izmeritel-vremennyh-parametrov-rele-f738-04a83f
- City: Nikopol
- Other: description I will sell the meter of time parameters of relay f738. When connected to the network, the indicator glows, responds to pressing the buttons. Complete set - only the device. I will send both within Ukraine and abroad. All questions before bidding. F738 relay timing meter - a device designed to determine the temporary operation or release of the relay, the difference in the operation time of any combination of two pairs of normally open and normally closed contacts when the relay is actuated or lowered, as well as the time of short-term closing or opening of the contacts. Technical features F738: - measurement range: from 1ms to 10s on four ranges; - power supply of the device: 127/220V±10%, at a frequency of 50Hz±1%. F738 allows you to measure the following time parameters of the relay when the relay windings are powered from an external source with direct current up to 10A and voltage up to 240V, or alternating current up to 6A and voltage up to 380V, while the power consumption of the windings of the tested relays should not exceed 100W: - release time of the relay with "З" and "Р" contacts; - response time of the relay with opening "P" or closing "Z" contacts; - the difference in the closing or opening time of any combination of 2 pairs of "З" or "Р" contacts when the relay is activated or released; - time of short-term closing or opening of the closing "ZSK" or closing "RSK" contact. Devices F738 has a two-digit digital readout indication, and can work with a vertical or horizontal position of the front panel. F738 instrument dimensions: - meter dimensions: 440×375×200mm; - weight - no more than 12 kg. Specifications F738 Power supply for the F738 device is from an alternating current network of 50 Hz with a rated voltage of 127/220 V. The main error of the time parameters meters of the F738 relay under normal conditions does not exceed the value determined by the formula - v ± (5 + 0.5 (tK / tx)), where tK is the final value of the time interval of the range during measurement; tx is the instrument reading; 5 - the largest permissible error of the instrument's master oscillator; 0.5 is the coefficient determined by the discreteness of the reference system of the F738 instrument. Additional error F738 when operating in conditions other than nominal does not exceed half of the main error in the following cases: - when the supply voltage deviates by ±10% from the nominal; - when the temperature deviates by every 10°C from the optimum temperature of +20°C. The starting key of the measuring device of time parameters of the F738 relay allows opening of the current in the circuit of the windings of the tested relays: - 10A at voltage up to 240V (constant operating current); - 6A at AC voltage up to 380V. After preheating the F738 device for 30 minutes, continuous operation is allowed for 8 hours.