Radiometric devices >> RLC meters (Ye7-, Ye8- and others)
Immittance meter E7-1 (1 E7, E7-1 E7 1, E7-1 e7 1)
Meter E7-1 - radio equipment for the determination of the parameters for the impedance or admittance of the circuit.
Power - AC 220V, 50Hz.
Meter E7-1 is used for the determination of the following quantities: the module impedance, resistive component of impedance (admittance), the reactive component of impedance (admittance).
Also, E7-1 meters are used to determine the capacitance, inductance, dielectric loss tangent capacitor, inductor Q and the phase shift.
Safety requirements for gauges E7-1, GOST 22261, this standard and technical requirements for a particular type of meters.
Meters E7-1 are equipped with protective devices (surge, diode limiters and similar devices), excluding the impact of high voltage to the wait staff in the event of an emergency (eg, short-circuit the measuring object, the breakdown of the measuring circuit element or elements of the design).
Isolation between the housing meter E7-1 insulated from the housing and DC circuits stand for 5 minutes, a testing of the AC voltage equal to 120% of the maximum value of the working voltage (50 ± 1) Hz.
Insulation resistance measuring device between the housing 1 and the E7-insulated from the housing of DC circuits must be at least:
- 40MOm - at an ambient temperature of 40 ° C and a relative humidity of 80%;
- 80MOm - under normal conditions of use;
- 20MOm - at ambient temperature (20 ± 5) ° C and 90% relative humidity.
Operating conditions E7-1
Meters E7-1 are designed for use in the following conditions:
- The temperature of the ambient air - 0 ᵒ C to +50 ᵒ C;
- Relative humidity - less than 80%.