The vacuum pressure gauge is a pressure measuring instrument specially designed for box-type power transformers. The measuring range is -10~10PSIG.

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The UHZK-03 Electric Contact Oil Level Gauge is designed for indicating the oil level in the tank of oil-immersed transformer,it is composed of float, connecting lever, holder, magnet steel and indicator, terminal box, relay etc. With the holder completely separating the indicator from the float, it is possible for the gauge to be sealed.
The vacuum pressure gauge is a pressure measuring instrument specially designed for box-type power transformers. The measuring range is -10~10PSIG.
This type oil temperature gauge is a specialized instrument suitable for temperature measurement and control of various small transformers. This gauge has the characteristics of sensitive response, clear indication, convenient installation, and good reliability.
The transformer oil temperature gauge is suitable for the instrument installed on the side wall of the transformer for temperature measurement and indication. The temperature measurement range is 0~120°C.
The UHZK-03 Electric Contact Oil Level Gauge is designed for indicating the oil level in the tank of oil-immersed transformer,it is composed of float, connecting lever, holder, magnet steel and indicator, terminal box, relay etc. With the holder completely separating the indicator from the float, it is possible for the gauge to be sealed.
When the oil level in a tank rises or drops due to the oil temperature changing or other reasons,the float in the tank will rise or drop correspondingly to drive the pointer indicating the oil level. When the oil level rises up, the interior alarm switch will be open while the indicator point at the highest oil level of H, Oil level meter in high oil level switch from open to closed circuit state, contact 1, 2, closed circuit. When the oil level goes down,the interior alarm switch will be open while the indicator point at the lowest oil level of L, Oil level meter in low oil level switch from open to closed circuit state, contact 4, 5 closed circuit.
The gauge is forbidden to be collided by force.
The connecting lever is strictly forbidden to be stretched or bent,no magnetic field nearby while working.
The O-ring is mounted to prevent the leakage of oil from tank, if it doesn’t seal the oil in the tank completely, please
check whether the screws was fully tightened, or the fitting surface between the sub-panel and o-ring were placed flat or not.
The oil’s temperature at 25℃ will be as a reference temperature of the oil surface temperature, so you have to work out the exact oil level through the actual measure oil temperature while installation. The max. measurement range of the gauge(standard model) is 100mm,otherwise we can customized it if you have any special requirements(please confirm the length of R90 in the outline drawing)

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