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25-
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Detailed Description
GWD60 Mine temperature sensor
USES:
GWD60 mine temperature sensor is suitable for the coal mine gas, coal dust, the place of explosive gas. According to different environment and location under the coal mine use installation, when more than setting temperature around the sensor, the sensor output switch signal effectively.
Performance characteristics:
Temperature sensor is a kind of special 18 b20. Single chip microcomputer temperature probe to avoid, for its high precision, calibration of linear temperature/voltage conversion
MCU and V/A conversion of intelligence, the output of the temperature data for sensor board; Motherboard adopts single-chip computer AT89C2051
Processing. And is equipped with upper and lower control. On the sensor of digital visual display; Adjusted by the micro switch, at ordinary times the digital tube display
In the surrounding environment temperature. When the environment temperature more than set point, sensor switch output level signal. Has a high sensitivity.
High accuracy. Calibration. Stable and reliable work, etc.
Technical parameters:
1, explosion-proof type:, mine intrinsically safe explosion-proof marks for ExibI;
2, the rated working voltage: 12 VDC;
3, rated current: 35 ma or less;
4, the highest input voltage Ui: 12.9 VDC;
5, the maximum input current Ii: 420 ma;
Six, the maximum internal inductance Li: 0 mh;
7, the maximum internal capacitance, Ci: 4.8 uF;
8, measurement range (0 ~ 60 ℃, resolution: 1 ℃;
Action: 9 and overtemperature overtemperature output value within the range (37 ~ 60 ℃) is adjustable, overtemperature output error
Value: not more than plus or minus 2 ℃;
10, the output signal: switch quantity level signal;
A) when the temperature does not exceed "overtemperature action output value. Output: low level of 0.5 V or less:
B) when the temperature exceeds "overtemperature action output value". Output: high level of 6 v or higher;
11, response time: 5 s or less:
12, the power supply voltage fluctuation adaptability: when the input voltage fluctuate within the scope of the VDC 10 ~ 15 VDC. Sensors should be positive
Often work;
13, the environment temperature: 0 ℃ to 40 ℃;
14, the average relative humidity: 95% or less;
15, the transmission distance: 100 m or less;
16, connecting cable: coal mine use mobile rubber set soft cable connection. The connection length of 100 m or less:
17 and associated equipment: ZP - 127 - z automatic sprinkler dust device for mine main box;
18, temperature sensor shape dimension: 170 * 110 * 110 (mm) (1300);
19. Weight: 2.5 kg.
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