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MSE-HMD85 Digital Hot Metal Detector (HMD)
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General Description
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To accommodate variation in bar temperature and background IR, various
precise threshold are programmable via covered switches from 270°C
to 1,000°C ( 518°F to 1832°F) to ensure reliable switching with reference to both the
displayed background and product IR signal. Furthermore, response time
is programmable from 1ms to 250ms to accommodate black spots on the bar.
The MSE-HMD85
incorporates a remote self-check facility remotely energized by
closed contacts that illuminates an internal IR LED to switch the detector
and verify the' outputs are operating correctly.
The MSE-HMD85
will operate from either 24VDC or optional 80-240 VAC power input.
Standard outputs include a cradle relay, a fast reed relay and both NPN/PNP
transistor outputs.
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Specifications
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Lens F.O.V. (Field of View).
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Standard: -CR2 1/2° x 25° Rectangular
Slit
Optional: -CR0 1/2° x 5°, -CR1 1/2° x 15°Slit
-C2 2° Spot or -C4 4° Spot
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Supply Voltage
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Standard: -94 24 VDC ± 15%
Optional:
-98 80 - 240 VAC, 50/60 |
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Power Consumption
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2 Watts
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Sensing Element
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InGaAs Photodiode |
Operating Temperature
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-20°C (-4°F) to +50°C (122°F) without cooling
-20°C (-4°F) to +60°C (140°F) with air cooling
to +80°C (194°F) with water cooling chilled at 20°C
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Power Indication:
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Blue LED of Rear Bar Display |
Humidity
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Max 90% RH (non condensing)
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Function Indication
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Top & Bottom Yellow LED's
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Storage Temperature
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-20°C (-4°F) to +50°C (122°F)
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Remote Self-Check
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Middle Yellow LED's
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Output (#1)
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Cradle Relay Output, SPNO, 240VAC, 7A
with 20 ms response time.
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Min/Max I.R. Threshold Settings
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Down to 270°C (482°F) and up to 1000°C
(1832°F) via programming switch
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Output (#2)
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PNP Output, N.O., 500 mA,
45VDC, 2A peak
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Response Time:
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1 ms min to 250 ms max via programming
switch
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Output (#3)
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NPN Output, N.O., 500 mA,
45VDC, 2A peak
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Optional Output: Reed Relay Output, SPNO,
240VAC, 0.5A with 2 ms response time.
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Smallest Detectable Product when utilizing a 0.5° x 25° Lens
The table below identifies the minimum % of vertical field of view required with hot steel at stated temperature for it to be repetitively detected.
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Indicative Preset
Thresholds
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Steel Temp. |
Nominal 350°C Preset Trip |
Nominal 500°C Preset Trip |
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400°C
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10%
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Not Detectable
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450°C
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5%
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100%
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500°C
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1%
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60%
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600°C
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1/2%
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20% |
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800°C
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Less than 1/2%
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Less then 5%
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Lens Options
MSE-HMD85 is shipped as standard with 0.5° x 25° FOV Slit Rectangular Lens. Other lenses, as listed in the table below, may be
chosen to accommodate the monitoring of both large and small product at
close proximity or substantial distance. Even product dramatically
deviating about the center of Field of View can be monitored with a slit
Field of View lens arrangement.
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Lens Options |
-CR2 |
-CR1 |
-CR0 |
-C2 |
-C4 |
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Field of View |
0.5° x 25° |
0.5° x 15° |
0.5° x 5° |
2° |
4° |
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View area at 1meter (mm) |
10 x 500 |
10 x 250 |
10 x 130 |
40 Ø |
70 Ø |
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This interchangeability of lenses allows the user to adopt one standard sensor to suit individual installation requirements.
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For Additional Info on the
MSE Line of Hot Metal Detectors Click
the Link Below: |
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