807 Low Temperature Liquid Level Sensor

Technical Parameters

No.	Item	Current sensor metrics	Customizable
1	Operating Voltage	DC12V~24V	5V~36V
2	Detector working temperature	-196℃～80℃	custom made
3	Ambient temperature	-40℃~80℃	-40℃~80℃
4	Detection length	As shown on the nameplate	50mm~3000mm
5	Pressure range	≤ 1.6MPa	Special customizable
6	Probe diameter	Φ16	Φ8~Φ25
7	Installation method	M20*1.5	M10~M30/NPT/G/sanitary chuck
8	Explosion-proof level	2088 explosion-proof shell	2088 explosion-proof shell/304 stainless steel micro shell
9	Accuracy level	1.0/2.0	0.5/1.0/2.0
10	Output signal	4~20mA	4~20mA/0~5V/RS485/RS232

807 Low Temperature Liquid Level Sensor Wiring

The connection position is equipped with integrated 4-bit terminal, defined as shown in Figure:

OUT +: Power Supply +
OUT-: Power Supply-
TEST +: Debug the interface
TEST-: Debug the interface
Note: The sensor TEST (R485) for 4 ~ 20 mA signal is for commissioning only

Precautions for use

1. There can only be one type of RS232/RS485/0-5V/4~20mA signal, and you can choose to use any one of them. The RS485 bus can connect multiple sensors at the same time, but the communication address of each sensor must be set in advance. The communication address of each sensor must be unique to prevent the bus from locking up. The RS485 bus uses a half-duplex chip, so the module should be allowed time to respond when reading data. The reading speed cannot be too fast. The time interval between two instructions during continuous reading cannot be less than 200ms.
2. It is recommended that the sensor be connected with a shielded wire, especially for RS232 communication. The communication wire should not be too long.
3. For RS232/RS485 signal sensors, when troubleshooting communication failure, you can swap the blue and yellow wires for testing. If the communication is successful, it means there is a wiring error. This operation is for digital communications only.
4. The power supply voltage of the sensor shall not exceed its normal working voltage, and the power consumption of the sensor power supply shall not be less than the power consumption of the sensor during normal operation.
5. The actual environment should meet the basic parameter requirements of the sensor and must not exceed the normal range, otherwise it will cause damage to the sensor and even cause other accidents.
6. The sensor outputs the position height signal of the medium. When the filtering is zero, the output value reflects the actual change of the liquid level. The output value changes with the rise or fall of the liquid level. After adding the filtering, the value will Becomes stable and lagging, the larger the filter value, the higher the temperature, the liquid level value will lag behind the change of the actual liquid level. Therefore, customers adjust the filter value based on device usage.
7. Please do not disassemble or damage the sensor maliciously, otherwise the warranty will be void.
8. All accessories such as rubber pads and O-rings of the sensor are not covered by the warranty.

More Low Temperature Liquid Flow and Pressure Measurement

807 Low Temperature Liquid Level Sensor is a customized sensor, which is limited to the measurement of low-temperature liquid level and cannot be used for other media.

We, Sino-Inst, are a professional high-tech enterprise focusing on the research and development, production, sales and engineering services of liquid level/pressure/flow sensors and transmitters, intelligent instruments and automated control systems. Our main products include liquid level, pressure and flow sensors, transmitters and other field measurement instruments.

We provide customers with measurements under various high temperature, low temperature, explosion-proof and other special working conditions. If you need Low Temperature Liquid Level measurement, please feel free to contact our sales engineers.

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