General Hot Metal Information Detectors Temperature response curve Reliably sense hot objects The self-contained style HMD has a lower installed cost than the remote style in high ambient temperature If the surface to be sensed is exactly HMD and is ambient temperature rated to at the set point temperature of the and dirty conditions. 85°C. Units with optional cooling jacket sensor, then 100% of the scanned area increase this rating to 125°C. NAMCO Infra-Red (IR) Hot Metal must be covered by the hot surface. As Detectors not only survive in hot The remote lens system is used in this surface is elevated in temperature, environments, they work because of applications with high ambient tempera- less of the scanned area needs to be them. When the IR energy level emitted tures and/or where system flexibility is covered. The Temperature Response from a hot object exceeds the HMD’s invaluable. The sensor electronics are Curve shows the % scanned area to be internal set point, the sensor output encapsulated in an oil- and water-tight covered as temperature of sensed energizes. Set points of 250°, 450°, control module. The remote lens is surface is elevated above set point. 360°, or 800°C and lenses of different connected to the control module by a Example: The IR Sensor ER920- viewing angles adapt the HMD to stainless steel-jacketed fiber optic cable. 13812 - Response temperature application requirements. The unit’s 2- The remote lens, void of electronic when scanned area is covered 100% wire AC or 3-wire DC discrete output circuitry, will survive ambient tempera- by hot product = 450˚C directly interfaces with programmable tures to 150°C. The fiber optic cable has controllers or relay coils. The optional However, if only 5% of scanned area a 260°C ambient temperature rating and pre-check feature allows for remote contains hot product, the IR Sensor can be used without a remote lens. triggering of the sensor output to verify requires an additional (see chart) set (Consult factory for details.) switching performance. point temperature (250˚C). Hot Metal Detectors are ideally Available in self-contained and Set Point Temperature of ER920- suited for continuous caster, hot strip, remote lens styles, the tubular stainless 13812 = +250˚C bar and wire, forge and foundry applica- steel housing with glass lens is impervi- tions. Effective response temperature is ous to steam, water, dust, shock, and therefore = 700˚C vibration common to heavy industrial environments. 500˚C 400˚C Hot Product Sensors Series ER 800 & 900 Call Namco 1-800-NAMTECH for ordering assistance, or consult your local Namco 300˚C representative or distributor. 200˚C Temperature of Object Remote or Viewing 100˚C Being Sensed Angle Self-Contained Style > 800°C • Remote control module with • 25° 1% 5% 10% 100% lens and fiber optic cable • 7° % Scanned Area filled with Hot Product • Remote control module with • 2° > 450°C only fiber optic cable (no lens) • 1° • Self contained • 1/2° • Self contained with water- > 360°C • 2° x 25° cooled jacket • 1° x 25° > 250°C • 1/2° x 25° Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 156 Special Application Solutions Temperature increase above set point What role does product Three Styles of Hot Metal Detectors: temperature play? Self-contained (ER900) Namco offers four set point tem- peratures for its line of HMD’s. The set point temperature is the minimum This standard unit temperature level at which the sensor integrates the lens and will detect the product. For example, if electronics in one housing the HMD set point temperature is 360°C, and has an ambient it will not detect products with tempera- temperature rating of 185°F tures less than 360°C. The sensor will, (85°C). however, sense all products hotter than 360°C that cross into its field of view. Available set point temperatures and OUT Self-contained with cooling jacket basic application guidelines are as follows: This is also an 800°C - Used for continuous cast integrated unit but is monitoring, ladle pour applications, and surrounded by a sleeve other operations where temperatures of that circulates either the metal are between 800°C and molten. water or shop air around 450°C - This is the most frequently the sensor, cooling the used HMD throughout hot strip mills, bar sensor and increasing its mills, forging presses, etc. It can also ambient temperature accommodate reasonable quantities of rating to 257°F (125°C). IN steam, water spray, etc. expected in the rolling or forging process. Remote lens system (ER800) 360°C - Used for lower temperature applications where background “noise” This unit uses a temperatures are less than 360°C but the remote lens that is product itself is still hotter than 360°C. connected to the control module 250°C - The lowest set point using fiberoptic temperature is good for steel applica- cable. Since the tions where the metal has cooled control module that considerably over time, as in cooling houses the temperature-sensitive electronics beds and at downcoilers. The 250°C set can be placed in a cooler area, this system point temperature is suitable for non- offers the highest ambient temperature ratings: ferrous applications such as aluminum processing in which product tempera- Fiberoptic cable 500°F (260°C) tures are lower than those in steel Remote lens 302°F (150°C) operations. Control module 185°F (85°C) If temperature levels cannot be maintained, additional protection can be obtained by placing a radiant heat shield in front of the sensor. The heat shield is a 1/8" thick steel plate with a sight hole up to .5" All viewing diameter that allows the Detector must pass sensor a full field of view thru sight hole. while it is shielded from the bulk Steel Plate of the radiated heat energy. 1/8" Sight Hole typically .250-.500" diameter Continued on next page. � 2013 West Meeting Street • Lancaster, SC 29720 1-803-286-8491 • FAX: 1-800-678-6263 www.namcocontrols.com For technical assistance, call 1-800-NAMTECH 157 � � Special Application Solutions Hot Metal General Information Detectors improved when the product Q. “How far away from its Q. “How can sensing abruptly enters or exits a vertical target can a hot metal accuracy vs. distance be (straight line) viewing field bound- detector be placed?” maintained?” ary as compared to a circular field of the same total area (sharp turn A. Excessive heat and physical A. Viewing angle and distance ON/OFF). damage account for nearly 100% of combine to determine the size of all HMD failures. One of the many the scanned area (see chart). An elongated viewing field lens can advantages of the Namco HMD is Therefore, different lenses can be be positioned to provide a long, that up-close mounting is not a selected to produce viewing angles narrow scan area across the length requirement, which adds flexibility ranging from 25° (broad) to 1/2° of a runout table, roll face, etc. to installation and application (tight). In general, pickup/dropout Products with varying lateral possibilities. accuracy and repeatability will position or irregular shapes will be improve with a tighter lens. This sensed at the first point of entry/ The Namco HMD responds only to will hold true up to the point where exit along the scan area. Vertical IR energy within the viewing field of product size and viewing field size orientation of the field will permit a given lens type regardless of become equal. Once the viewing similar detection of varying passline distance. However, as mounting field size is within the product size, applications. distance increases, the viewing field there are no additional gains in increases proportionally and may Mill housings, downcoilers, etc. accuracy. exceed the overall dimensions of provide limited vision areas for the product and/or see other IR Where accuracy is not a primary product sensing. A long narrow sources (adjacent pass lines, hot factor, and the product size and field can be applied to sight through scale, background metal tempera- temperature relationship will assure these areas with little or no tures, etc.). In such cases, the HMD detection, it is not always necessary cropping of the viewing field. lens and minimum response to select a tight lens. Note: The vertical (25°) viewing temperature must be selected (see field of all Namco elongated field charts) to accommodate these HMDs is in the same plane as the Q. “How does the size and factors. HMD mounting lug. shape of the product Applying Namco HMDs is normally As previously stated, product a very simple and straightforward affect the choice of a hot temperature and percent of scan process. Well over 50% of all product sensing area covered within the viewing applications can be resolved with a field combine to determine the system?” 450°C, non-cooled, 2° lens. “effective” minimum response Additionally, reliable detection is A. Namco’s elongated (rectangular) temperature. Elongated viewing possible with only 5% of the view viewing field lenses (1/2 x 25, 1 x field applications for sensing small field covered at 700°C. 25, and 2 x 25) are designed to diameter rod, etc., should have the solve specialized hot product In general, the application process “effective” response temperature sensing applications. In general, should consider the following: verified (see charts). repeatability and overall accuracy is • Sensing objective (tracking, positioning, cut, etc.) • Product to be sensed (size, temperature, distance, etc.) • Sensing conditions (water, steam, scale, ambient temp., etc.) • HMD selection (response temperature, lens, cooling requirements, etc.) Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 158 Special Application Solutions Scanned Area vs. Viewing Angle Scanned Area vs. Viewing Angle 56 52 48 44 40 36 32 28 24 20 16 12 8 4 2 4 6 810 12 14 16 18 DISTANCE (FEET) Scanned Area for 1/2°, 1°, 2°, 7° and 25° Lenses Scanned Area for 1/2° x 25°, 1° x 25° and 2° x 25° Lenses VIEWING VIEWING ANGLE ANGLE DISTANCE DISTANCE SCANNED SCANNED AREA AREA 2013 West Meeting Street • Lancaster, SC 29720 1-803-286-8491 • FAX: 1-800-678-6263 www.namcocontrols.com For technical assistance, call 1-800-NAMTECH 159 1° OPTICS 2° OPTICS 7° OPTICS 25° OPTICS PLAIN FIBER OPTIC CABLE DIAMETER SCANNED (INCHES) Special Application Solutions From Caster Torch Clamp Travel Run Out Table Hot Metal Application Examples Detectors Automate the flash s trimmer process One System By the time the slab reaches the per Strand flash trimmer, it is sufficiently cooled Stopper 2˚ Remote Cut-off to use a standard 450°C sensor. Lens Torch Flames The HMD detects the leading Fiber Optic Maximum Narrow Cable Minimum Cut Length B Scale View Field edge of the slab. The informa- A Cut Length Hot Product Pour Remote Hot tion is relayed to the Adjustable to Required Billet Length Sensor Fill Hole Product Swivel control board, which Sensor Stand initiates positioning of the Splatter slab farther down the line. The Sand Mold Vent Hole slab is stopped while the flash Regulate slab length in a trimmer is moved up into posi- tion. The rollers bring the slab backward continuous caster steel mills over the trimmer, which removes the Mold auto fill sequences The process of cutting a slab into scarf from the torch cutting process. lengths is a hot process, requiring the For the harsh environment of a use of a Namco 800°C set point HMD like foundry’s mold fill line, an 800°C remote STD 2 Lens the ER900. lens and a sensor system will be required 450˚C in order for the sensor to accurately view Using a 1/2° lens will allow the HMD the process. A 2° lens monitors the fill to be placed six feet away while still level through the vent hole as the mold is producing a refined viewing area of .8". filled by the stationary ladle. When the Slab from Continuous Caster The sensor can be mounted on a sliding molten metal in the mold rises to the scale which is relative to the cutting level of the vent hole, the sensor detects torch. The sensor detects the leading Scarf from the metal and relays the information to Torch Cutoff edge of the slab and initiates the torch the control board. The stopper is closed clamp and cut sequence, which can and the line is indexed for the next mold occur anywhere between points A and B, Automate the down-coiling to be filled.s depending on predetermined needs. An process in a steel mill additional sensor may be mounted to the Although the steel has cooled torch housing to relay information for considerably by the time it reaches the control of the cutting process. downcoilers, the automation of the downcoilers is a hot process requiring the use of a Namco ER900 HMD sensor with a 250°C or 360°C set point. By detecting whether there is already a coil on the conveyor leading to Hot Product Sensor the storage 6" to 12" Downstream attached to Torch from Torch Cut Housing. Moves with area and Downcoilers Torch Clamp Mode. relaying Verify that a slab has that information, a low sbeen cut set point sensor can help automate the Another 800°C set point temperature process by eliminating HMD can be mounted on the torch the need for an housing 6-12" downstream from the operator to manually torch cut. The cut sequence does not end Coil Conveyor control the operation. until the HMD detects the separated slab. Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 160 Torch Cut Travel Special Application Solutions Mold fill hole location Hot Metal Ladle can be anywhere in No Hot Product Sensor Shaded Area. Vent Approx. opening size - Holes } 4" x 10" Electrode Mold Travel Required Typical Overpour Fill Level Molten and Splatter Iron (Less than 2000˚F) 2 x 25˚ scan area of Occasionally large Hot Product Sensor at overpours may occur. Detect filled molds about 48" from mold Could be nearly equal to Anode temperature of metal at even if the fill hole isn’t pour hole and larger in area. always in the same spots s Monitor a spin cast process Automate an anode Even if fill holes are located in a different position on each mold, an 800°C The same 800°C sensing system assembly processs set point HMD can still provide accurate used to detect overfill of molten metal For anode assembly in aluminum or detection when it is used with an can also be used to detect the initial pour other nonferrous industries, hot metal is elongated lens. A lens with a 2° x 25° sequence of molds for products like pipe. poured around the electrode in order to scan area, for example, will cover the full A second sensor placed at the opening of firmly cast the electrode to the anode. In width of the mold, detecting fill holes as the mold can detect the fill level of the order to automate this process, the the molds cross the viewing field. This mold, sensing when the mold is full and chance for overpour must be eliminated system allows accurate detection of filled relaying the message to the controller, so that an operator does not have to molds such as would be needed for a which retracts the mold. Presently, the visually monitor the process. This can be production count. pour and fill sequences are timed from accomplished by using a sensor with a when the ladle first begins to pour, which narrow viewing angle to sense the metal is inaccurate and leads to a high as its level reaches a rejection rate. Remote Hot A sensor for high level limitsspecified point, just Product Sensor control as in a vessel fill 7˚ Remote 10' application. The Lens If a tea spout overfill area is added at sensor detects the the high level mark of the vessel, a 800°C Spinning APC molten metal Cast Mold HMD can be used as the primary level when it spills into Fiber Optic control system. Indexed over the tea Cable a notch cut at the spout during the fill cycle, it will sense required fill level the molten metal as it reaches the fill Fiber Optic and signals the level and spills into the tea spout. The Cable Quartz Rod Extension (No Cooling Jacket) End View of Pour Trough ladle to cease sensor monitoring the process (Rear) pouring. detects the hot metal and signals the controller to end the fill cycle and thus prevent Tea Spout Addition High overpouring. to Sample Overfill Limit Level Normal Fill Level Range 2013 West Meeting Street • Lancaster, SC 29720 Vessel 1-803-286-8491 • FAX: 1-800-678-6263 (Molten Metal) www.namcocontrols.com For technical assistance, call 1-800-NAMTECH 161 Special Application Solutions Self-Contained Hot Metal Systems Detectors on a photo detector inside of the stain- Namco Hot Metal Detectors (HMD’s) Both standard and water cooled less steel housing. When the energy level were designed to be simple and cost HMD’s are impervious to the effects of is sufficient to meet the set point of the effective in applications requiring steam, water, dust, shock and vibration HMD, a digital output signal is generated. dependable detection. Available trigger associated with heavy industrial environ- set points include a 250°, 360°, 450°, or ments. The HMD’s are totally self-contained 800°C range. Whether the application is in a rugged 4541 stainless steel housing in a steel mill or for flame detection in a with high quality electronics and glass Typical Applications: burner application, the Namco IR sensor optic components. can be counted on for many years of Continuous casters, hot strip mills, The water jacket models add an reliable operation. bar mills, shape mills, pipe mills, forges additional measure of heat resistance. These devices work on the principle & foundries, coke plants, glass indus- These water cooled HMD’s are specifi- that all heated objects emit infra-red tries, cutoff and measuring of hot cally designed to be used where tempera- energy. Using a sophisticated optic and product. tures exceed the ambient rating of the internal baffling system, the infra-red standard HMD’s. energy is collected and precisely focused Minimum Maximum 360˚C* 450˚C 800˚C Housing Viewing Circuit Load Leakage Voltage Switching Model No. Model No. Model No. Length Angle Description Connector Current Current Drop Frequency AC MODELS ER920-12817 ER920-13817 ER920-14817 170mm 25˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz ER920-12813 ER920-13813 ER920-14813 170mm 7˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz ER920-12812 ER920-13812 ER920-14812 170mm 2˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz ER920-22811 ER920-23811 ER920-24811 254mm 1˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz ER920-22819 ER920-23819 ER920-24819 300mm 1/2˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz ER920-12814 ER920-13814 ER920-14814 170mm 2 X 25˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz ER920-22818 ER920-23818 — 300mm 1 X 25˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz ER920-22815 ER920-23815 ER920-24815 300mm 1/2 X 25˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz AC MODELS WITH WATER COOLED JACKETS — ER920-43813 — 170mm 7˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz — ER920-43812 ER920-44812 170mm 2˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz ER920-52811 ER920-53811 ER920-54811 250mm 1˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz — ER920-53819 — 300mm 1/2˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz — ER920-43814 ER920-44814 170mm 2 X 25˚ 2W, AC, NO 3-pin Mini 20mA 5mA 12 volts 20Hz AC MODELS WITHOUT WATER COOLED JACKETS WITH PRECHECK ER920-16812 ER920-17812 — 170mm 2˚ 2W, AC, NO 5-pin Mini 20mA 5mA 12 volts 20Hz —— ER920-28811 254mm 1˚ 2W, AC, NO 5-pin Mini 20mA 5mA 12 volts 20Hz — ER920-27819 ER920-28819 300mm 1/2˚ 2W, AC, NO 5-pin Mini 20mA 5mA 12 volts 20Hz *Note: 250˚C setpoint versions and DC powered versions are also available. All versions are available with optional pre-check. Consult the factory for ordering information. Accessories: see page 168. Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 162 Special Application Solutions Common Sensor Characteristics Dimensional Drawings SHORT HOUSING - 170mm SELF-CONTAINED INFRA-RED SYSTEMS WITH AND WITHOUT WATER COOLED JACKETS 6.69" (170.0) Supply Voltage 105-132 VAC, LEDs 50/60 Hz 2.24" Output 500mA (57.0) 2.56" Switching Delay (65.0) Activation 1 ms 0.43" (11.0) Release 10 ms 1.57" (40.0) 0.59" Short Circuit Protected Yes (15.0) 3.35" (85.0) Precheck Current 20 mA Consumption (optional) LONG HOUSINGS - 254mm/300mm NEMA Rating 3, 4, 12, 13 10.0" 11.81" Connector 3-pin mini (254.0) (300.0) LEDs With optional Pre-check 5-pin mini Output Thyristor, NO 2.24" (57.0) Ambient Temperature Determined by temperature, 2.56" (water cooled HMD) specific heat capacity and flow (65.0) 0.43" rate of coolant. (11.0) 1.57" (40.0) Precautions must be taken to 0.59" (15.0) insure that water does not 5.90" 4.92" (125.0) (150.0) freeze in cooling jacket and that coolant flow is maintained when working above +55˚C. SHORT HOUSING (WATER COOLED) - 170mm Ambient Temperature 360˚C: -30˚C to +55˚C (standard HMD) 450˚C: -30˚C to +75˚C 800˚C: -30˚C to +85˚C Either air or water may be used for cooling. 6.69" (170.0) 1.18" (30.0) TYP. Wiring Diagrams LEDs Mail views shown AC UNITS - with and without Precheck 3.0" (76.0) 3 Pin Without Precheck (Use on all 2 wire AC’s) 0.43" 1.37" L (Hot) 1 (11.0) (35.0) TYP. 1.57" (40.0) 0.59" 0.47" (12.0) DIA. TYP. (15.0) Pin 2 0.79" (20.0) DIA. TYP. 3.35" (85.0) 2.56" 1 GND (65.0) N.O.• • 23 LOAD Pin 3 Pin 1 110VAC L1 LONG HOUSING (WATER COOLED) - 250mm/300mm Max. 400 mA 9.84" 11.81" (250.0) (300.0) 1.18" (30.0) L (Neutral) 2 TYP. LEDs 5 Pin With Precheck 3.0" (Use on all AC Devices with IR Precheck) (76.0) L (Hot) 1 0.43" 1.37" (11.0) (35.0) 1.57" TYP. LOAD (40.0) Pin 5 0.59" 0.47" (12.0) DIA. TYP. (15.0) • 0.79" (20.0) DIA. TYP. 1 5 POWER IN-AC 4.92" 5.90" • N.O. Pin 3 (125.0) (150.0) 2.56" • 2 4 NOT USED (65.0) Pin 2 • Pin 1 3 GND PRECHECK 110VAC Max. 400 mA L (Neutral) 2 2013 West Meeting Street • Lancaster, SC 29720 1-803-286-8491 • FAX: 1-800-678-6263 www.namcocontrols.com For technical assistance, call 1-800-NAMTECH 163 LOAD LOAD Special Application Solutions Hot Metal Multi Setpoint Detectors Namco Hot Metal Detectors (HMD’s) envisioned. If the current selected • Multi-setpoint versatility were designed to be simple and cost setpoint is not appropriate, the HMD can effective in applications requiring quickly be changed. • Reduces stocking require- dependable detection. A single Hot Metal Namco’s HotSpot HMD uses the ments Detector (HMD) can be used nearly industry standard for mounting. So, anywhere in your hot mill process. The direct replacement of an existing HMD is • Integrated air/water cool- Namco Multi-Setpoint HMD is the first to easy to upgrade. ing jacket with rear hose offer local or remote programmable set- points to the industry standard of 350°C- connection interface 450°C-800°C response temperatures. Typical Applications: Automatic re-calibration with no physical • Low leakage current offers For tracking, positioning, length switch virtually eliminates tampering or ease of installation to PLC control on hot strip, rod, bar, shapes, mill environment problems. Now when seamless pipe mills and casters. your sensing conditions change, so can inputs you. No longer do you have to order or inventory multiple HMD types specific to • Industry standard mount- your application. Now you can use the ing for easy upgrade same unit from the caster and re-heat furnaces through the coiler or cooling • Factory serviceable beds. Plus, because the setpoint is selectable, the new HMD is forgiving in • Surface Mount Technology applications where rolling or background temperatures are not as originally • Made in USA Viewing Circuit Minimum Load Leakage Voltage Maximum Switching Model No. Angle Description Connector Current Current Drop Frequency AC/DC MODEL ER720-10702 2° 2W, AC/DC, NO 5-pin Micro 5mA 1.7mA < 10 volts 1.5Hz Please consult factory on availablity of lens viewing angles: 1°, 2°, 1°x25°, 2° x25°. . Accessories: see page 168. Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 164 Special Application Solutions Dimensional Drawings Common Sensor Characteristics HOTSPOT HMD HOTSPOT INFRA-RED SYSTEMS Supply Voltage 80-230 VAC/DC 50/60 Hz Voltage Drop < 10 V Output 200mA Minimum Load Current 5 mA Leakage Current 1.7 mA Switching Delay Activation 300 ms Release 50 ms Short Circuit Protected Yes Max. Switching Freq. 1.5 Hz Precheck Current 25 mA Consumption Enclosure Designed to 3, 4, 12, 13 meet NEMA Type Side View Connector 5-pin micro With optional Pre-check Output Thyristor, NO Ambient Temperature Determined by temperature, specific heat capacity and flow rate of coolant. Precautions must be taken to insure that water does not freeze in cooling jacket and that coolant flow is maintained when working above +55˚C. Wiring Diagrams 5 Pin Micro MICRO CONNECTOR MODELS Rear View Front View (Mail views shown) 350� Note: The water cooling jacket uses the 1/4” hose fittings. LOAD The air lens purge uses the 5/16” hose fittings. 1 5 L1 PRE-CHECK 2 4 3 GND LED Indicators RED RED RED GREEN 450� 350°C 450°C 800°C PRE-CHECK L1 Power Off Off Off Off Off 1 5 2 Power On @ 350°C Setpoint On Off Off Off 4 LOAD 3 Power On @ 450°C Setpoint Off On Off Off GND Power On @ 800° Setpoint Off Off On Off 800� Target Off Off Off On 1 Load Pre-check On Off Off Off On 5 PRE-CHECK 2 L1 4 3 GND 2013 West Meeting Street • Lancaster, SC 29720 1-803-286-8491 • FAX: 1-800-678-6263 www.namcocontrols.com For technical assistance, call 1-800-NAMTECH 165 Special Application Solutions Remote Hot Metal Detection Detectors Systems having different viewing angles, will Namco IR detectors are digital Typical Applications: sense a known scanned area and, when a switches which respond intelligently to Continuous casters, hot strip mills, heated object enters this area, its emitted infra-red energy given off by heated bar mills, shape mills, pipe mills, forges IR energy is detected and transmitted via surfaces at 4 different pre-set tempera- & foundries, coke plants, glass indus- the fiberoptic cable to the remote tures and above. They are temperature tries, cutoff and measuring of hot electronics package where a digital compensated which allows them to be products. response signal takes place. used in high ambient (up to 200°F) locations. Temperature settings are pre- Namco utilizes fiberoptic cables that set and never require adjustment. An IR have a flexible stainless steel jacket precheck feature on all remote units is designed to withstand severe environ- standard. This allows the user easy mental abuse. All fiberoptic cables are access to verification of system perfor- constructed with the highest quality glass mance. bundles thereby assuring optimum IR transmission to the detector. All remote The Namco remote HMD system is lenses are made from premium quality designed with the user in mind. A Remote Lens glass optics and sealed in stainless steel number of different remote type lenses Scanned housings to ensure reliable operation in are available which give the system Viewing Area at Model the most adverse applications. versatility and added value during the Angle 2 Meters No. selection of such a system. These lenses, 150˚C max. amb. 1/2° 0.8" Dia. ER800-00009 1° 1.6" Dia. ER800-00001 2° 3.2" Dia. ER800-00002 Control Module 7° 11" Dia. ER800-00003 Model No. Set Point Ambient 2 Style Temperature Temperature Output 25° 40" Dia. ER800-00007 Connector Cable Flat Pak 360˚C -30˚ to +55˚C ER920-36816 ER920-36826 1/2 x 25° 3/4" x 40" ER800-00005 120V AC Flat Pak 450˚C -30˚ to +75˚C N.O. ER920-37816 ER920-37826 1 x 25° 1.6" x 40" ER800-00008 Thyristor Flat Pak 800˚C -30˚ to +85C ER920-38816 ER920-38826 2 x 25° 3" x 40" ER800-00004 Consult factory for DC units. 1 Fiber Optic Cable Cable Model Notes: Length Note No. 1 All cables may be used with 250˚C max. amb. or without lens. 2 Meters – ER800-00600 Viewing Angle = 67˚ Specify – ER800-00700 2 Signal loss = 50˚C 3 Meters 2 ER800-00100 3 Signal loss = 100˚C 4 Meters 3 ER800-00200 Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 166 Special Application Solutions Common Sensor Characteristics Dimensional Drawings CONTROL MODULE REMOTE DETECTION SYSTEMS AC Supply Voltage 105-132 VAC Output 500 mA Minimum Load 20 mA Leakage Current 7 mA Voltage Drop 12 VAC Switching Frequency 20 Hz Switching Delay Activation 1 ms Release 10 ms FIBER OPTIC CABLE Short Circuit Protected Yes 0.39" (10.0) Precheck Current 20 mA Consumption NEMA Rating 3, 4, 12, 13 0.32" (8.0) DIA. Metal Housing Aluminum-Epoxy Paint 0.16" (LENS END) (4.0) Connector 5-pin Mini 1.61" DIA. (41.0) 0.71" (CONTROLLER END) (18.0) Accessories REMOTE LENS Model No. Description 2˚ and 2 x 25˚ lens ER800-10000 Purge mount for 7° remote lens 7˚ Lens 4.80" (122.0) ER800-01000 Swivel stand mount 2.56" (65.0) 1.0" 2.24" (25.0) (57.0) 3.66" 2.36" (93.0) (60.0) 1.0" Circuit Drawings 1.57" (25.0) (40.0) 5-PIN MINI CONNECTOR 0.43" AC Wiring Diagram (11.0) DIA. (Ref. only)* LOAD 1 5 POWER IN-AC 1˚, 25˚ and 1/2 x 25˚ lens NOT USED 2 4 6.77" 3.93" 9.84" GND 3 (172.0) (100.0) (250.0) PRECHECK 2.24" • (57.0) 90 Pin 5 0.41" (10.5) 20 mA 1.0" Optional 1.57" (25.0) Pre-Check (40.0) Pin 3 yellow/ 0.43" green (11.0) Pin 2 DIA. Pin 1 120 VAC LOAD • • *Always connect as shown on label. 2013 West Meeting Street • Lancaster, SC 29720 1-803-286-8491 • FAX: 1-800-678-6263 www.namcocontrols.com For technical assistance, call 1-800-NAMTECH 167 Special Application Solutions Hot Metal Accessories Detectors Swivel Stand Part No. ER800-01000 1.18" 0.43" (30.0) DIA. (11.0) 2.36" (60.0) 1.77" 1.18" (45.0) (30.0) 0.20" (5.0) 2.36" L SQ 2.36" (60.0) (60.0) 3.54" (90.0) PURGE MOUNT FOR REMOTE 7° LENS Part No. ER800-10000 0.31" 5.90" (150.0) 3.94" (8.0) (100.0) M8 0.35" 0.98" 1.18" DIA. 0.90" (25.0) (30.0) (9.0) DIA. 0.20" (5.0) DIA. (23.0) 1.97" 45˚ (50.0) 1.18" (30.0) 1.57" (40.0) ca. 0.79" 0.55" DIA. (14.0) (20.0) 0.40" (10.0) DIA. 1.18" (30.0) 1.97" (50.0) 0.71" (18.0) 0.43" (11.0) DIA. Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 168 Special Application Solutions 3