YZF-M series remote pointer-type oil level gauge
The YZ series remote transmission pointer-type oil level gauge is a monitoring device used to measure the oil level in the oil storage tanks of transformers and other power equipment, and can monitor oil level changes in real time. It is mainly used in oil storage tanks of oil-immersed transformers, power capacitors, and reactors, and can also be used for oil level indication in oil storage tanks of medium and small power equipment and load switch. This product has high and low oil level alarm functions, can also realize dual-channel alarm signal output of high and low oil levels, and can be configured with real-time monitoring function of oil level in the oil storage tank, converting the oil level change in the oil storage tank into a 4~20mA analog output. It can also be configured with RS485 communication protocol, and can also be configured with a remote display, meeting the needs of national smart grid construction.
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Product Description
Product Introduction
The YZ series remote transmission pointer-type oil level gauge is a monitoring device used to measure the oil level in the oil storage tanks of transformers and other power equipment, and can monitor oil level changes in real time. It is mainly used in oil storage tanks of oil-immersed transformers, power capacitors, and reactors, and can also be used for oil level indication in oil storage tanks of medium and small power equipment and load switch. This product has high and low oil level alarm functions, can also realize dual-channel alarm signal output of high and low oil levels, and can be configured with real-time monitoring function of oil level in the oil storage tank, converting the oil level change in the oil storage tank into a 4~20mA analog output. It can also be configured with RS485 communication protocol, and can also be configured with a remote display, meeting the needs of national smart grid construction.
Product Classification
Classified by dial diameter: φ250mm, φ200mm, φ140mm.
Classified by connecting rod swing type: axial swing and radial swing.
Model Description
Example Notation: YZF2-200M represents the second design, vertical rod float type, dial diameter of 200mm, single-channel low oil level, single-channel high oil level alarm output, and pointer-type oil level gauge with real-time monitoring analog output function.
Technical Parameters
Air temperature: -45℃~+55℃
Relative humidity: When the air temperature is 25℃, the relative humidity is no more than 90%.
Oil temperature not higher than 90℃.
No violent vibration or bumps.
Indicating error: Less than 2.5% of the full scale.
Contact Capacity
| Power Supply Type | Working Voltage | Working Current |
| AC | 220V | 5A |
| DC | 0.3A |
Remote Oil Level Gauge Outline Drawing
Installation Dimension Drawing
Unit (units) mm
| Product Model | Sealing Ring Specifications | D1 | D2 | d | Bolt Specifications/Quantity | Installation Flange Opening |
| YZF2-250M | φ115×105×5 | φ156 | φ130/φ135 | φ12 | M10/6 | φ100 |
| YZF3-250M | φ115×105×5 | φ156 | φ130/φ135 | φ12 | M10/6 | φ100 |
| YZF2-200M | φ115×105×5 | φ160 | φ135 | φ12 | M10/6 | φ100 |
| YZF1-200M | φ115×105×5 | φ160 | φ135 | φ12 | M10/6 | φ100 |
| YZF3-200M | φ115×105×5 | φ156 | φ130/φ135 | φ12 | M10/6 | φ100 |
| YZF1-140M | φ100×90×5 | φ140 | φ116 | φ12 | M10/4 | φ85 |
| YZF2-140M | φ100×90×5 | φ140 | φ116 | φ12 | M10/4 | φ85 |
| YZF3-140M | φ100×90×5 | φ140 | φ116 | φ12 | M10/4 | φ85 |
Terminal Wiring Diagram
Analog Output
When the real-time monitoring analog output function of the oil storage tank oil level is configured, the oil level gauge pointer at the 0 and 10 positions on the dial corresponds to the analog output of 4mA and 20mA respectively. The angle of the oil level gauge dial scale 0~10 is 270° or 120°. The relationship between the analog output mA at each position and the swing angle of the oil level gauge dial pointer is as follows:
Analog output = {(20-4)/oil level gauge dial angle} × oil level gauge dial pointer swing angle + 4mA.
For example: When the pointer points to 1, the analog output is calculated as: {(20-4)/270} × 27 + 4 = 5.60mA
When the pointer points to 150°, the analog output is calculated as: {(20-4)/270} × -150 + 4 = 12.89mA
The corresponding analog output of the oil level gauge pointer position is as follows
Oil Level Gauge Pointer Position vs. Analog Output Comparison Table
| Pointer Position | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Analog Output (mA) | 4 | 5.6 | 7.2 | 8.8 | 10 | 12 | 14 | 15 | 17 | 18 | 20 |
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