MSE-HMD85 Digital Hot Metal Detector (HMD)
Hot Metal Detectors MSE-HMD85 Description Technical Info Housing Info Data Sheet Request More Info

The following is additional technical and operation information on the MSE-HMD85 Digital Hot Metal Detector

Back view of the MSE-HMD85 Digital Hot Metal Detector

Rear view of the self-contained MSE-HMD85 Digital Hot Metal Detector showing detection of a hot bar at a HSM and the LED Bar Display..

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.  

The MSE-HMD85 is a direct replacement for the MCSL Model MD8100 and Model MD85100 Hot Metal Detectors. Please contact us for additional information.

Specifications

Lens F.O.V. (Field of View).
Standard: -CR2 0.5° x 25° Rectangular Slit
Optional: -CR0 0.5° x 5°, -CR1 0.5° x 15° Slit
Optional: -C2 2° Spot or -C4 4° Spot
Supply Voltage
Standard: -94 24 VDC ± 15%
Optional: -98  80 - 240 VAC, 50/60
Power Consumption
2 Watts
Sensing Element
InGaAs Photodiode
Operating Temperature
-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
Power Indication:
Blue LED of Rear Bar Display
Humidity
Max 90% RH (non condensing)
Function Indication
Top & Bottom Yellow LED's
Storage Temperature
-20°C (-4°F) to +50°C (122°F)
Min/Max I.R. Threshold Settings
Down to 270°C (518°F) and up to 1000°C 1832°F) via programming switch
Output (#1)
Cradle Relay Output, SPNO, 240VAC, 7A with 20 ms response time.
Response Time:
1 ms min to 250 ms max via programming switch
Output (#2)
PNP Output, N.O., 500 mA, 45VDC, 2A peak
Remote Self-Check
Middle Yellow LED's
Output (#3)
NPN Output, N.O., 500 mA, 45VDC, 2A peak

Optional Output: Reed Relay Output, SPNO, 240VAC, 0.5A with 2 ms response time.

Smallest Detectable Product when utilizing a 0.5° x 25° Lens

Guideline for Temperature of Hot Product above Preset Threshold vs % of Vertical Field of View

The table below identifies the minimum % of vertical field of view required with hot steel at stated temperature for it to be repetitively detected.

Guideline for Temperature of Hot Product above Preset Threshold vs % of Vertical Field of View

Indicative Preset Thresholds
Steel Temp.
Nominal 350°C Preset Trip
Nominal 500°C Preset Trip
400°C
10%
Not Detectable
450°C
5%
100%
500°C
1%
60%
600°C
1/2%
20%
800°C
Less than 1/2%
Less than 5%

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.

 

Lens Options
-CR2
-CR1
-CR0
-C2
-C4
Field of View
0.5° x 25°
0.5° x 15°
0.5° x 5°
View area at 1meter (mm)
10 x 500
10 x 250
10 x 130
40ø
70ø

This interchangeability of lenses allows the user to adopt one standard sensor to suit individual installation requirements.

The MSE-HMD85 is a direct replacement for the MCSL Model MD8100 and Model MD85100 Hot Metal Detectors. Please contact us for additional information.

 

Spot Lenses

Rectangular Lenses

FOV Chart of Spot Lenses
F.O.V.
F.O.V.
D (ft)
Dia.  (in)
Dia.  (in)
D (ft)
Dia.  (in)
Dia.  (in)
0.21 ø
1.5 ø
8
1.7 ø
11.7 ø
2
0.42 ø
2.9 ø
10
2.1 ø
14.7 ø
3
0.63 ø
4.4 ø
15
3.1 ø
22 ø
4
0.8 ø
5.9 ø
20
4.2 ø
29 ø
5
1.0 ø
7.3 ø
25
5.2 ø
37 ø
6
1.3 ø
8.8 ø
30
6.3 ø
44 ø
FOV Chart of Rectangular Lenses

>
F.O.V.
0.5°
15°
25°
D (ft)
W (in)
H (in)
H (in)
H (in)
2
0.21
2.10
6.3
10.6
3
0.31
3.14
9.5
16.0
4
0.42
4.19
12.6
21.3
5
0.52
5.24
15.8
26.6
6
0.63
6.29
19.0
31.9
8
0.84
8.38
25.3
42.6
10
1.05
10.5
31.6
53.2
15
1.57
15.7
47.4
79.8
20
2.09
20.9
63.2
106.4
25
2.62
26.2
79
133
30
3.14
31.4
95
160
   
Hot Metal Detectors MSE-HMD85 Description Technical Info Housing Info Data Sheet Request More Info
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