1.The ambient temperature -10ºC～+40ºC, the humidity ≤85%, no dramatic changes in ambient temperature places;
2.No strong magneto electric interference, corrosion, inflammable and explosive gas or liquid place
3.No special installation is required, only a flat and solid foundation (such as the ground) is needed.
4.The calibration table should have enough work space on the side of the front, back and liquid level observation holes to facilitate the operation, dismantling, maintenance and cleaning of the equipment.
5.The calibration stage is powered by three phase four wire system. When wiring is selected, wiring is required according to the electrician's manual, ensuring safety. If the wiring distance exceeds 25M, it is recommended to increase one specification wiring.
6.The checkout console must be reliably grounded before use. The grounding wire must not be connected to other large current loads, but must be separately grounded. The earthing wiring must be shorter and the better.
7.A proper amount of qualified transformer oil must be added before the first use of the instrument, and the filling hole is located at the oil return tank. It is suitable for the liquid level meter to observe the hole oil level in the distance of 6~8 centimeters from the upper cover of the tank.