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Detection Before Cooling Bed Measuring Device
General Description
The MSE-HMD85 Hot Metal Detector is a robust sensor activated by the infra-red radiating from the hot product. Impervious to water or steam it is built to withstand the harshest of environments. The product is detected via a highly stable InGaAs Photodiode to ensure detection regardless of heavy water and steam and incorporates filtering that removes the visible spectrum to minimize sensitivity to extraneous light. The precise 0.5° x 25° lens ensures accurate detection of strip and accommodates bar bounce.
This MSE-HMD85 Hot Metal Detector is especially suitable where ambient temperatures are subject to large changes. In standard format, a large air cooled chamber vents via deflector in front of the lens to allow the use of non-instrument air and provides air purging. Alternatively, an optional sealed loop water coolant radiator accommodates tap pressure and a separate air purge inlet may be provided.
Additional Information
To accommodate variation in bar temperature and background IR, various precise threshold are programmable via covered switches from 270°C to ensure reliable switching with reference to both the displayed background and product IR signal.
Furthermore, response time is programmable from 1 ms to 250ms to accommodate black spots on the hot material.
The MSE-HMD85 Hot Metal Detector incorporates a remote self-check facility remotely energized by closed contacts that lights up an internal IR LED to switch the Detector and verify its’ outputs operate correctly.
The MSE-HMD85 Hot Metal Detector will operate with 80-240 VAC/50-60Hz or 24 VDC power input. Standard outputs include a cradle relay, a fast reed relay and both NPN/PNP transistor outputs.
Air & Water Specifications
Air Pressure: 1 cu ft./min at 5 PSI for normal conditions
5 cu ft./min at 15 PSI for severe conditions
Water Pressure: 5 to 10 PSI, 40 PSI Maximum
Water Volume: Regulate between 0.2 - 0.3 liters/min.
Water Temp.:
For Ambient Temperature up to 70°C use ambient water below 20°C
For Ambient Temperature up to 80°C use water chilled up to 10°C
General Specification
|
Lens F.O.V. (Filed of View) |
0.5° x 25° Rectangular Slit |
Sensing Element |
InGaAs Sensor |
Power Indication |
Blue LED |
Function Indication |
Top & Bottom Yellow LED's |
Remote Self-Check |
Middle Yellow LED's |
|
Min/Max I.R. Threshold Settings |
Adjustable from 270°C via Programming Switch |
Response Time |
1 ms to 250 ms, via Programming Switch |
Supply Voltage |
Standard: 80 - 240 VAC, 50/60 or 24 VDC ± 10% |
Power Consumption |
5 W |
Operating Temperature |
1. -20°C to +50°C without Air Cooling 4. up to 80°C with Heat Shield |
Output (#1) |
Cradle Relay Output, SPNO, 240 VAC, 7A with 20 ms Response Time. |
Output (#2) |
Reed Relay Output, (OPTION) SPNO, 240 VAC, 0.5A with 2 ms Response Time. |
Output (#3 & #4) |
NPN and PNP Outputs, N.O., 500 mA, 45 VDC, 2A Peak. |
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