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Thermalert ET Series Operator’s Manual

Accessories and Options

A full range of accessories and options for mounting and operating in particularly
harsh environments are available.

Air/water cooled housing

15m, 30m, 60m (50’, 100’, 200’) cable

Sighting Viewer

ThermoJacket

Right Angle Mirror

– Mounting Flange

Air Purge Collar

– Mounting Bracket

Mounting Nut

– Sighting Tube Mounting Flange

Fixed Bracket

– Sighting Tube, 305mm (12 in)

Adjustable Bracket

– Ceramic Sighting Tube, 305mm (12in)

Swivel Bracket

– Adjustable Pipe Adapter Accessory

110/220 to 12 VAC power supply

– Blast Gate Accessory

Figure 1-1:  Accessories and Options

Summary of Contents for Thermalert ET Series

Page 1: ...Thermalert ET Series Operator s Manual Rev J 3 96 55203 1...

Page 2: ...2 1 4 Electrical Interference 2 2 2 1 5 Wiring 2 3 2 1 6 Multiple Sensors 2 3 2 2 Mechanical Installation 2 4 2 2 1 Sensor standard 2 4 2 2 2 Sensor Air Water Cooled Housing 2 5 2 2 3 Air Purge Collar...

Page 3: ...bleshooting Minor Problems 4 1 4 2 Fail safe Operation 4 1 4 3 Cleaning the Lens 4 2 4 4 Customer Service 4 2 APPENDIX A OBJECT EMISSIVITY A 1 How to Determine Object Emissivity A 1 Typical Emissivity...

Page 4: ...ytek unless the failure was caused by misuse neglect accident or abnormal conditions of opera tion or storage in which case repairs will be billed at a reasonable cost In such a case an estimate will...

Page 5: ...ure measurement subsystem consist ing of optical elements spectral filters integrated detector digital electronics and a NEMA 4 IEC 529 IP 65 housing They are built to operate on a 100 percent duty cy...

Page 6: ...sing 15m 30m 60m 50 100 200 cable Sighting Viewer ThermoJacket Right Angle Mirror Mounting Flange Air Purge Collar Mounting Bracket Mounting Nut Sighting Tube Mounting Flange Fixed Bracket Sighting Tu...

Page 7: ...1 1 Optical Nominal optical resolution values are stated at minimum 90 energy Distance to size D S ratios represent nominal values 2LT 3LT Standard Focus 2LT 3LT Close Focus 2P7 3P7 Standard Focus 2H...

Page 8: ...to 400 0 to 200 3 0 to 800 0 to 400 4 0 to 1400 0 to 800 3P7 Range Setting F Version C Version 1 50 to 350 10 to 110 2 50 to 650 10 to 360 3G5 Range Setting F Version C Version 1 500 to 1500 260 to 8...

Page 9: ...imum peak hold Averaging 0 3 sec response time with no averaging 5 sec response time with maximum averaging Fail Safe Full scale 20 3 mA when under or over range or subrange 1 1 4 Electrical Power 12...

Page 10: ...175 C 32 to 350 F with ThermoJacket 0 to 315 C 32 to 600 F Storage Temperature 40 to 65 C 40 to 150 F Environmental Rating NEMA 4 IEC 529 IP 65 with conduit and compression fitting Vibration MIL STD 8...

Page 11: ...tion the atmos pheric quality of the location and the possible electromagnetic interference in that location You need to be aware of the spot size on your target and how far away the sensor needs to b...

Page 12: ...ble is a ThermoJacket accessory which allows use of the sensing head in ambi ent temperatures up to 315 C 600 F 2 1 3 Atmospheric Quality It is important to maintain cleanliness of the lens at all tim...

Page 13: ...els be sure to use the appropriate thermocouple wire 2 1 6 Multiple Sensors There are two types of interfacing to consider when connecting more than one sensor to a controller or other device differen...

Page 14: ...2 2 1 Sensor standard All sensors are supplied with a fixed bracket and mounting nut Alternatively the sensor may be mounted through a hole or may be mounted using a customer sup plied bracket or oth...

Page 15: ...condensation and lens damage use of the Air Purge Collar with the Water Cooled Housing is required Thermalert ET Series Operator s Manual 2 5 Figure 2 6 Sensing Head with Air Water Cooled Housing Figu...

Page 16: ...g heads in ambient temperatures up to 315 C 600 F The ThermoJacket s rugged cast aluminum housing completely encloses the head and provides water cooling and air purging in one unit Sensing heads can...

Page 17: ...missivity settings downward by 5 e g for an object with an emissivity of 0 95 use 0 90 for an object with 0 80 use 0 76 for 0 65 use 0 62 This corrects for infrared energy losses due to the mirror 2 2...

Page 18: ...onduit To avoid undue stress on the housing during installation attach the coupling first to the conduit and then to the sensor Do NOT suspend the conduit from the sensor or the sensor from the condui...

Page 19: ...w Black 4 Thermocouple output J K R type Uninsulated None Cable shield to earth ground CAUTION Always use thermocouple wire on pins 3 and 4 Note that Red is minus For all color coding of thermocouples...

Page 20: ...data logger indicator computer I O etc requir ing a 4 20 mA linear current input Note that four 4 wires are required two 2 for the calibrated linear signal and two 2 for the power supply Installation...

Page 21: ...echniques are used to avoid any stray radiation from sources both inside and outside of the sensor Besides the optics and IR detector an ambient temperature sensor is used to detect varying ambient co...

Page 22: ...rear panel Any adjustment may be made while power is on The thermocouple and current output models have similar controls with the only exception being the addition of the Temperature Range Switch on...

Page 23: ...tion Current Output LT Range Setting F Version C Version 1 0 to 200 0 to 100 2 0 to 400 0 to 200 3 0 to 800 0 to 400 4 0 to 1400 0 to 800 P7 Range Setting Temperature Range 1 50 to 350 F 2 50 to 650 F...

Page 24: ...ot object moving into view on a conveyor belt then decay slowly once it passes by If delay is not desired turn the control fully counter clockwise To increase the delay turn the control clockwise 3 2...

Page 25: ...Thermalert ET Series Operator s Manual 3 5 Figure 3 4 Signal Outputs Standard Peak Hold Averaging...

Page 26: ...ken continuity Field of view Remove obstruction obstructed lens dirty clean lens see below Faulty interconnect Verify cable continuity cable to data acqui replace cable if sition system necessary Wron...

Page 27: ...leaner Apply one of the above to the lens Wipe gently with a soft clean cloth until you see colors on the surface then allow to air dry Do not wipe the surface dry as this may scratch the surface 5 If...

Page 28: ...r masking tape large enough to cover the field of view on the object Next measure the tape temperature using an emissivity setting of 0 95 Finally measure an adjacent area on the object and adjust the...

Page 29: ...0 3 0 02 0 2 Copper Polished 0 03 0 03 0 03 Roughened 0 05 0 2 0 05 0 15 0 05 0 1 Oxidized 0 7 0 9 0 5 0 8 0 4 0 8 Gold 0 01 0 1 0 01 0 1 0 01 0 1 Haynes Alloy 0 6 0 9 0 3 0 8 0 3 0 8 Inconel Oxidize...

Page 30: ...0 4 0 7 0 3 0 6 0 2 0 5 Electrolytic 0 1 0 2 0 1 0 15 0 05 0 15 Platinum Black 0 95 0 9 0 9 Silver 0 02 0 02 0 02 Steel Cold Rolled 0 8 0 9 0 7 0 9 Ground Sheet 0 6 0 7 0 5 0 7 0 4 0 6 Polished Sheet...

Page 31: ...over 20 mils Rubber 0 9 0 95 Sand 0 9 0 9 Snow 0 9 Soil 0 9 0 98 Water 0 93 Wood Natural 0 9 0 95 0 9 0 95 To optimize surface temperature measurements consider the following guidelines 1 Determine th...

Page 32: ...tromagnetic Emissions EN50082 1 1992 Electromagnetic Susceptibility Tests were conducted over a frequency range of 27 500 MHz with the instrument in three orientations The instrument s average error i...

Page 33: ...B 2 Thermalert ET Series Operator s Manual...

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