Side-mounted magnetic flip liquid level meter matters needing attention
Printing Machine,Paper Cup Printing Machine,Satin Label Printing Machine,Cotton Fabric Printing Machine RUIAN RUIZE MACHINERY CO., LTD , https://www.ruizemachinerys.com
Use cautions:
1. When handling side-mounted magnetic flap level gauge faults, remember not to take live measurements.
2. When using a logic pen or oscilloscope to detect signals, be careful not to make the probe contact two measurement pins at the same time because the essence of this situation is to form a short circuit under power-up.
3. When detecting the filter capacitor in the power supply, the positive and negative electrodes of the electrolytic capacitor should be short-circuited first, and the short-circuit line should not be used to discharge the capacitor instead of the lead wire, because it is easy to blow the core wire. It is possible to take a 220V, 60 to 100W lamp with a cap lead, which is connected to both ends of the capacitor. The lamp will flash at the moment of discharge.
4, in the wet environment maintenance side-mounted magnetic flap level gauge failure, it is necessary for the printed circuit with a multimeter to measure the smoothness of its points, because the main problem in this case is the corrosion of copper foil.
5, the maintenance of side-mounted magnetic flap level gauge internal circuit, if the components of the contacts and the circuit board is coated with insulating varnish, measuring the parameters of each point can be used ordinary hand welding needle in the multimeter on the table pen, in order to pierce The lacquer layer directly measures the points without peeling the lacquer over a large area.
6. Do not hot plug various control boards and plugs. Because in the case of power-up, the plug-in control board generates a strong induced electromotive force. At this moment, the instantaneous counter-attack voltage is very high and it is easy to damage the corresponding control board and plug.
7, do not blindly knock over and overhaul during maintenance, so as not to expand the failure, the more repair and more bad.
8. When disassembling and adjusting the side-mounted magnetic flap level gauge instrument, the original position should be recorded in order to recover