YZ Seriesoil level meterIt is used on the oil conservator of fully sealed large and medium-sized transformers. When the oil level in the oil conservator changes, the float on the connecting rod of the oil level meter swings up and down, driving the rotation mechanism of the oil level meter to rotate, and the oil level of the oil conservator is indicated by the pointer on the dial through the rotation of the magnetic coupling and the pointer shaft. The oil level gauge is equipped with an over-limit oil level alarm mechanism, which can realize the remote oil level monitoring.
YZ Model Transformer Oil Level Gauge Product No. Description
For example: YZF2-200 is a pointer type, floating ball, design number 2, dial diameter 200mm oil level meter.
Note: F is float type, S is telescopic rod type.
Oil level meter main technical parameters
a. Alarm error: less than 2.5% of the whole disk
b. Contact capacity: AC220V, 1A; DC220V, 0.3A
c. Ambient temperature: -25°C to +40°C
d. Industrial frequency voltage: 2KV, 1min.
e. Ambient relative humidity: not more than 90% (20°C)
f. 300Kpa, 20min without leakage
g. Protection class: IP55
h. AV 220V 1A, DC 220V 0.3A
Installation and use
1 Inspection
After connecting the float to the pendulum (float section) first, do the following checks:
a. Check for loose pointers and flexible rotation.
b. Check the lowest and highest point indication, when the float pendulum respectively in the lowest and highest position, the pointer should be respectively in the red area should be alarmed (such as purchased products for high and low oil level alarm should also be alarmed in the area).
c. Check dial glass for damage.
d. Check float for damage.
e. Check that the pendulum is securely attached to the float and to the drive section.
2 Installation
When installing, first extend the float part into the oil storage cabinet, and then fasten the oil level gauge to the mounting flange with bolts. The mounting flange is provided by the user.
Maintenance and Precautions
Since this oil level meter is a precision instrument, it is not allowed to be disassembled or installed without special reasons. Once a failure occurs, you should contact the manufacturer in time.
Caveats:
a. Check this oil level timer and do not hit its transmission part violently.
b. This oil level gauge is not suitable for places where the surrounding environment has violent vibrations and bumps, and is not easily subjected to strong impact.
c. The liquid level measured by this oil level gauge is also less likely to fluctuate violently.
d. When the oil level gauge is transported as a unit with the oil storage cabinet, the float section should be secured (preferably installed on site).
External Dimensions
YZF2-140TH
YZF3-140TH
YZF2-200TH
yzf3-200th yzf2-250th
YZS2-250TH
Electrical Wiring Diagram
,
Mounting Dimensions and Options
Mounting Dimensions
model number | Flange outer diameter D0 | Mounting hole diameter D | mounting hole | Mounting Flange Opening |
YZF2-140 | Ø 140 | Ø 116 | 4-M10 | Ø 82 |
YZF3-140 | Ø 140 | Ø 116 | 4-M10 | Ø 82 |
YZF2-200 | Ø 160 | Ø 135 | 6-M10 | Ø 100 |
YZF3-200 | Ø 156 | Ø 130 | 6-M10 | Ø 100 |
YZF2-250 | Ø 156 | Ø 130 | 6-M10 | Ø 100 |
YZS2-250 | Ø 156 | Ø 130 | 6-M10 | Ø 100 |
Diameter of oil conservator D and selection of connecting rod length L
L=D/2-80/2-10 (YZF2-140, YZF2-200)
L=1.414(D-200)(YZF3-140,YZF3-200,YZF2-250)
Lmin=D-2X90,Lmax=1.414Lmin(YZS2-250)
mounting position
model number | Dial diameter mm | pointer angle | starting point position | Pendulum Angle | mounting position |
YZF2-140 | Ø 100 | 120 | Tilt 60 | 120 | Sidewall center |
YZF3-140 | Ø 100 | 270 | level (of achievement etc) | 45 | Underneath the sidewall |
YZF2-200 | Ø 200 | 120 | Tilt 60 | 120 | Sidewall center |
YZF3-200 | Ø 200 | 270 | level (of achievement etc) | 45 | Underneath the sidewall |
YZF2-250 | Ø 250 | 270 | level (of achievement etc) | 45 | Underneath the sidewall |
YZS2-250 | Ø 250 | 270 | Tilt 45 | 45 | upper sidewall |