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The following is
specifications and dimensional information on the housing for the Moduloc
Control Systems Model MD85100 of Self Contained “All-in-One”
Digital Hot Metal Detector.
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Additional Technical Information
To accommodate variation in bar temperature and background IR, various
precise threshold are programmable via covered switches from
270°C
to 1,000°C 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
MD85100 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
MD85100 will operate from either 80-240 VAC or 24VDC 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.
(Filed of View) |
Standard: -CR2 1/2°
x 25° Rectangular Slit
Optional: -C2 2°
or -C4 4° Spot |
Supply Voltage |
Standard: -81 80
- 240 VAC, 50/60 and 24 VDC ± 15%
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Sensing Element |
YnGas |
Power Consumption |
5
VA |
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Power Indication: |
Blue LED |
Operating Temperature |
1.
-20°C to +50°C (-4°F to
122°F) without air cooling
2. -20°C to +60°C (-4°F to 140°F) with air cooling
3.
+2°C
to +70°C (35.6°F to 158°F) with 20°C water cooling |
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Function Indication |
Top
& Bottom Yellow LED's |
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Remote Self-Check |
Middle Yellow LED's |
Output (#1) |
Cradle
Relay Output, SPNO, 24VAC, 8A with 20 msec response time. |
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Min/Max I.R. Threshold settings |
Down to 270°C (518°F) and up to 1000°C (1832°F) via programming
switch |
Output (#2) |
Reed Relay Output, SPNO, 24VDC, 0.5A
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Response Time: |
1 msec. min to 250 msec max., via programming switch
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Output (#3) |
NPN
and PNP Outputs, N.O., 500 mA, 45VDC, 2A peak |
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Smallest Detectable Product when utilizing a ½° 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 450°C
Preset Trip |
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400°C |
10% |
Not Detectable |
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450°C |
5% |
100% |
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500°C |
1% |
60% |
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600°C |
1/2% |
20% |
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800°C |
Less than 1/2% |
Less than 5% |
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Part Number Specifications
Example: MD85100-81-CR2-A |
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Supply Voltage: |
-81 |
80 - 240 VAC
± 15% 50/60 Hz and 24 VDC ± 15% |
Cooling: |
-A
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Air Cooled & Air
Purged |
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Lens: |
-CR2
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½° x 25° F.O.V.
Rectangular Slit |
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-D
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Water Cooled & Air
Purged |
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-C2 |
2° F.O.V. Spot
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-C4
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4° F.O.V. Spot |
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