American Sensor Hot Metal Detector HMD500 User Manual

							557 Long Road 
Pittsburgh, PA  15235, USA 
Email: 
[email protected] 
www.americansensors.com 
Tel: 412-242-5903   fax: 412-242-5908
 
 
2014  HMD 500 Hot Metal Detector    1 
 
 
HMD-500-SERIES 
SCANNING HOT METAL DETECTOR 
 
NON-CONTACT, RELIABLE, PRECISE, LONG-RANGE PRODUCT 
DETECTION FOR ALL PRODUCTS FROM 150 °
°°
°
C (300 °
°°
°
F) EVEN IN 
THE PRESENCE OF STEAM, SCALE AND WATER 
 
                           
                                       
FEATURES:  
  VISIBLE AIMING LASER 
 MILL-DUTY, WATER-COOLED, POSITIVE-PRESSURE AIR- 
PURGED HOUSING 
 NORMAL/HIGH SENSITIVITY SELECTION REMOTELY, AND ON  
THE BACK OF SENSOR
 
  
24 VDC OR 100 - 240 VAC, 50 Hz / 60 Hz. 
  
    
APPLICATIONS:  
The  HMD-500  is  the  best  designed,  and  the  most  precise  detecti on  system  for  all  hot  metal 
applications including: 
 
   
      
   
 

 Tracking 
 Cut-to-Length 
 Positioning 
 Cooling Beds 
 Width Control 
 Annealing 
 Caster Torches 
 Mill Water Control 
MADE IN THE USA    
						

							557 Long Road 
Pittsburgh, PA  15235, USA 
Email: 
[email protected] 
www.americansensors.com 
Tel: 412-242-5903   fax: 412-242-5908
 
 
2014  HMD 500 Hot Metal Detector    2 
DESCRIPTION: 
 
S
CANNING PRINCIPLE: 
Sensing  is  accomplished  without  the  use  of  a  lens,  which  enhances  reliability  while  maintaining 
precise  detection  at  distances  in  excess  of  16.7m  ( 50  ft).  The  narrow  field  of  view  is 
vertically 
scanned
 by a rotating drum with multiple facets that refle cts IR energy to the photodiode (PbS).   The 
resultant  spot  size  is  approximately  4mm  x  4mm  at  4 m  through  a  viewing  field  of  +/-  20  degrees.  
The small spot size results in 
precise detection of head and tail ends. 
 
 
CHOICE OF PHOTOCELL: 
The HMD 500 Series is designed to use a lead sulfide (PbS) photocell.  Lead sulfide has superior hot 
metal  detection  capabilities.  The  output  level  is  s ufficient  to  provide  reliable  detection  even  with 
product  temperatures  as  low  as  150°C  (300°F)  and  is   continuous  when  the  hot  product  is  within  the 
viewing  field.  These  characteristics  allow  the  lead   sulfide  photocell  to  provide  reliable  hot  product 
detection, even through steam, dust and water. 
 
   
            
 
 
   
HMD-500  (PbS)     
						

							557 Long Road 
Pittsburgh, PA  15235, USA 
Email: 
[email protected] 
www.americansensors.com 
Tel: 412-242-5903   fax: 412-242-5908
 
 
2014  HMD-500 Hot Metal Detector  3 
SPECIFICATIONS: 
   
VERTICAL ANGLE DETECTION  10°, 30°, or 44° 
HORIZONTAL ANGLE DETECTION Adjustable max. 3 
LASER POSITIONING 650nm (Red), Class 2 
DETECTION THRESHOLD Adjustable via potentiometer at back of sensor 
ENERGY Signal amplitude 0-13.5V and displayed at back of sensor 
SWITCHING POWER 350VA with 250V Max. 
10A Max 
RELAY CLOSING TIME 7.5 ms 
RELAY OPENING TIME 3ms 
RELAY OUTPUT SPDT Relay 5 Amp at 250 VAC 
SOLID STATE OUTPUT TTL Transistor Output 
24V Push/Pull 
RESPONSE TIME 
(TRANSISTOR OUTPUT) 1 ms (10°) 2 ms (30°); 4ms (44°) 
GAIN LEVELS High & Low 
THRESHOLD SETTINGS TH / TL 
ENERGY OUTPUT 0-10V 
TEST FUNCTION Built-in self-test and diagnostics  
POWER SUPPLY Universal Input 100 to 240VAC, 50-60 Hz. 
Or 24VDC 
POWER CONSUMPTION 20VA or 10VA (for 24V) 
HOUSING IP66 Aluminium Alloy 
WATER/AIR COOLING Removable water / air-cooling jacket  
PROTECTIVE HOOD Hinged protective hood with positive pressure air purge:  4-16 
liters/min. (0.14 to 0.56 ft3/min ) at 2 bars (29 PSI)  
MOUNTING Fully adjustable foot mount swivel stand 
CABLE 2 meter, Standard, high-temperature Teflon shielded  
CONNECTOR Standard:  Quick-disconnect Harting plug  
SERIAL LINK DIGITAL COMMUNICATION n.a. 
OPERATING TEMPERATURE -10°C to 60°C  (14°F to 140°F) 
Above 60°C (140°F), auxiliary cooling is required:  1-2 bars at 1-2 
liters/min (14.5 to 29 PSI at 0.035 to0.07 ft3/min) 
INSIDE TEMPERATURE Alarm (fail safe) 
STORAGE TEMPERATURE  -20°C to 70°C  (-4°F to 158°F) 
         
     
   
						

							557 Long Road 
Pittsburgh, PA  15235, USA 
Email: 
[email protected] 
www.americansensors.com 
Tel: 412-242-5903   fax: 412-242-5908
 
 
2014  HMD-500 Hot Metal Detector  4 
DIMENSIONS: 
 
       HMD-510 / HMD-530   
   
       
 
        
     HMD-540                 
Notes: 
*  All  models  are  equipped  with  adjustable  sensitivity   switch  on  back  of  sensor.  The  standard  model  has  r emote 
senstivity switch and potentiometer as well as anal og signal amplitude output. 
   
ORDERING INFORMATION 
 
   Vertical Scan Angle    Input Voltage    Cable Length *  
HMD- 
510 – 10 deg.    100-240 VAC     ____ meters 
 
530 – 30 deg.     24V DC      
 
540 – 40 deg.         
  * All sensors are equipped with a 2 meter Teflon-sh ielded cable with Harting Connector.                   
Please specify if additional length is required. 
  
  Also available with a 4 or 6-wire pigtail cable.