MSE-HMD84 Digital Hot Metal Detector (HMD) Technical Info
Hot Metal Detectors MSE-HMD84 Description Technical Info Housing Info Data Sheet Request More Info

The following is additional technical and operation information on the MSE-HMD84 Low Temperature Digital Hot Metal Detector
MSE-HMD84 Low Temperature Digital Hot Metal Detector (HMD) Sensor

The self-contained MSE-HMD84 Low Temperature Digital Hot Metal Detector is available with either air coolant chamber venting as air purge or alternatively with a water coolant chamber and separate air purge. Shown mounted on a supplied MSE-LH-01 "L" Mounting Bracket.

To accommodate variation in bar temperature and background IR, various precise threshold are programmable via covered switches from 160°C to 460°C ( 320°F to 860°F) for Steel and  200°C to 500°C ( 392°F to 932°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-HMD84 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-HMD84 will operate from either 24VDC or optional 80-240 VAC power input. Standard outputs include a cradle relay,  and both NPN/PNP transistor outputs.   An optional fast reed relay with a 2ms response time is also available as an additional output.

The MSE-HMD84 is a direct replacement for the MCSL Model MD8100-HG, MD8400, MD84100, and Model MD85100-HG 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
Supply Voltage
Standard: -96 24 VDC ±15%
Optional: -98  80 - 240 VAC, 50/60 & 24 VDC ±15%
Power Consumption
2 Watts
Sensing Element
High Gain 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 160°C (320°F) and up to 460°C (860°F) via programming switch for Steel
Output (#1)
Cradle Relay Output, SPNO, 240VAC, 7A with 20 ms response time.
Down to 200°C (392°F) and up to 500°C (932°F) via programming switch for Aluminum
 Optional Output (#2)
Reed Relay Output, SPNO, 240VAC, 0.5A with 2 ms response time.
Response Time:
1 ms min to 250 ms max via programming switch
Output (#3)
PNP Output, N.O., 500 mA, 45VDC, 2A peak
Remote Self-Check
Middle Yellow LED's
Output (#4)
NPN Output, N.O., 500 mA, 45VDC, 2A peak
 
 

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

Approximate 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-HMD84 is shipped as standard with 0.5° x 25° FOV Slit Rectangular Lens. Optional rectangular and spot lenses are available, 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
Field of View
0.5° x 25°
0.5° x 15°
0.5° x 5°
2°
View area at 1meter (mm)
10 x 500
10 x 250
10 x 130
40ø

This interchangeability of lenses allows the user to adopt one standard sensor to suit individual installation requirements. Please contact us for other FOV lens requirements.

The MSE-HMD84 is a direct replacement for the MCSL Model MD8100-HG, MD8400, MD84100, and Model MD85100-HG Hot Metal Detectors. Please contact us for additional information.
 

Spot Lenses

Rectangular Lenses

FOV Chart of Spot Lenses
F.O.V.
2ø
4ø
F.O.V.
2°
4ø
D (ft)
Dia.  (in)
Dia.  (in)
D (ft)
Dia.  (in)
Dia.  (in)
1
0.42 ø
0.84 ø
8
3.4 ø
6.7 ø
2
0.84 ø
1.7 ø
10
4.2 ø
8.4 ø
3
1.26 ø
2.5 ø
15
6.3 ø
12.6 ø
4
1.7 ø
3.4 ø
20
8.4 ø
16.8 ø
5
2.1 ø
4.2 ø
25
10.5 ø
21.0 ø
6
2.5 ø
5.9 ø
30
12.6 ø
25.1 ø
FOV Chart of Rectangular Lenses

>
F.O.V.
0.5°
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
   

MSE-HMD85 Part Number Specifications

Example #1: MSE-HMD84-98-CR1-RR-D
(Optional 80-240VAC & 24VDC Supply Voltage, 0.5° x 25° FOV Lens (Standard) Optional Reed Relay Output, Standard Water Cooled air Purged Housing
Example #2: MSE-HMD84-96-C2-A
(24VDC Supply Voltage, Cradle Relay, NPN & PNP Transistor Outputs

Supply Voltage::

-96

= 24 VDC ±15% (Standard)
 

-98

= 80-240 VAC 50/60 Hz & 24 VDC ±15% (Optional)

Lens:

-CR2

= 0.5° x 25° FOV Rectangular Lens (Standard)

 

-CR1

= 0.5° x 15° FOV Rectangular Lens (Optional)

 

-CR0

= 0.5° x 5° FOV Rectangular Lens (Optional)

 

-C2

= 2° FOV Spot Lens (Optional)

Outputs:

-RR

= Cradle Relay, PNP & NPN Transistor Outputs and Optional Reed Relay Output (Optional)
 

None

= Cradle Relay, PNP & NPN Transistor Outputs (Standard)

Housing:

-A

= Air Cooled and Integral Air Purged (Optional)
 

-D

= Water Cooled with Separate Air Purging Facility (Standard)
 
Hot Metal Detectors MSE-HMD84 Description Technical Info Housing Info Data Sheet Request More Info
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