DD862 type single-phase meters

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DD862 type single-phase inductance AC active energy meters are used to measure active energy loss with frequency 50Hz or 60Hz。 features: new design, resonable construction, high overload, low power consumption, long life , high stablity. the meter is very popular by customers.

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Main technical parameters

1、Meters conform to GB/T 15283 -1994 and IEC 521-1988 standards.
2、Meters can be made into types: direct wiring and CT/PT wiring.
3、 Can be made into special meters according customer's requirements (different frequency, voltage,current specifications etc.).
4、 Start-up: under the condition of the referenced voltage, reference frequency and cosΦ=1, and the load circuit doesn't exceed the 0.5% of the basic circuit, the ammeter's rotor can be started up and constant turning.
5、 Potential action: the ammeter's rotor turns without exceeding one cycle when its line has no electric current and the voltage is 80%~110%of the reference value.
6、Power consumption:active power consumption of voltage circuit less than 2W(under reference conditions).
7、Dielectric properties:1.2/50µs wave,peak value:6kV, no damage permitted under 10 times test. meter can withstand 2kV(circuit to earth, under 45~65Hz,1 minute)。

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Q:Car radio dead after replacing battery?
If you pull the radio out of the dash a little way,there is usually an inline fuse on the hot wire going into radio.I doubt you ruined your radio.You more than likely blew the fuse in the line.
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Double check the fuse box. You may have checked the fuse that list the gauges, but there could be a second fuse running those 2 gauges. It might be listed under the fuse but behind some other components that that fuse also runs. If not, I would pull and check all fuses in case they didn't list it right. Also there maybe a second fuse/relay box under the hood. Check that too.
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your husband might be wanting to kill you now haha
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Should be in the blower itself, not the actuators. What you can do is get a short finder so you dont have to keep replacing 30A fuses, but unplug the relay in the back for the blower motor see if the short is before the rear HVac or inside the rear HVAC. If it doesnt blow then insert the relay unplug the blower itself see if it is the problem. Maybe it or a short in the wiring somewhere
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Take the bass driver out of the cabinet, take a flash light and look inside to see if you can see any lose wires, or damage if you do see lose wires solder those wires back where they belong reassemble the unit and try it outif there is something else wrong and there are no lose wires, you may have to replace a resistor or relay or it could be a fusedownload a service manual from the Internet and use that to find the fusecheck all components for damage or leakage.if you find something that looks blotted or is leaking look in the service manual for the proper value buy a replacement part of same value and replace it.but just try replacing the fuse firstfuses come in all sizes and shapes so sometimes you cannot tell where it is just by looking
Q:Fuse Rating Inscription: is F2A 250v same With F2AL 250v?
F2A250v should be same as F2AL250v since 2A is 2ampere while 250 v is 250volts is supply volts. L seems to be line voltage, which is same as supply or line voltage. Therefore it should be the same.
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Loose ground or connection, Corroded connections etc. Check the wiring to and from the components
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I think because your ground wire is cross, get a cheap meter and check the ground wire is right, when you buy it they will tell you how to check, and its easy
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Sure, I'll check the power distribution schematic. Oh, that's right. You apparently didn't think it was important to list the year and engine. So I can't look it up.
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I repair these - it is never just the fuse! I urge you to not attempt to just replace the fuse. Fuses do not go out due to age, they blow to protect other components from further damage and/or fire (no, I am not kidding). The amplifier requires service by a qualified technician. There are no user replaceable parts inside. Those Rotels were good units and worth the repair. Your best bet will be a stereo/home theater store that does repairs, although you may find a TV repair shop that has an tech that knows vintage audio. Now put that screw-driver away before you hurt yourself.

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