Model PM-616 Two-Color Pyrometer Operator s Manual Revision 1.2

Model PM-616 Two-Color Pyrometer Operator s Manual Revision 1.2 Logika Technologies Inc. 2857 Sherwood Heights Dr. Unit 2 Oakville ON, CanadaL6J 7J9 Tel: 905-829-5841 www.logikatech.com

Logika Technologies PM-616 Two-color Pyrometer Operator s Manual Rev. 1.2 Feb-13 1 INTRODUCTION... 2 2 DESCRIPTION... 2 2.1 MODEL NOMENCLATURE... 2 2.2 OPERATING PRINCIPLE... 3 2.3 SPECIFICATIONS... 3 3 LOCATION AND MOUNTING... 5 3.1 PYROMETER LOCATION... 5 3.2 PYROMETER MOUNTING... 7 3.3 LENS WITH FIBER OPTIC CABLE... 7 4 UTILITY CONNECTIONS... 8 4.1 ELECTRICAL CONNECTIONS... 8 4.2 WATER COOLING CONNECTION... 9 4.3 PURGE AIR CONNECTION... 10 5 OPERATION... 11 5.1 CONTROLS... 11 5.2 SET MENU FUNCTIONS AND PROGRAMMING... 11 Set Menu 1- Emissivity/Slope Adjustment... 12 Set Menu 2- Display Mode... 17 Set Menu 3 Output Signal Integration Time... 19 Set Menu 4-, 5-, 6- Process Alarm Settings... 20 Set Menu 7-, 8- Current/Voltage Analog Output Span Settings... 20 Set Menu 9- Aiming Laser Setup... 21 Display Menu 10- Enclosure Temperature... 21 Display Menu 11- Two Color Ratio... 22 Set Menu 12- Zero Compensation Gain... 22 Set Menu 13- Two-color mode signal attenuation ratio... 22 5.3 DEBUGGING... 24 6 MAINTENANCE... 26 6.1 REGULAR MAINTENANCE... 26 6.2 INSTRUMENT RETURN... 26 7 APPENDIX... 27 P a g e 1

1 Introduction PM-616 two-color infrared pyrometer is primarily used in the metallurgical industry to measure temperature of steel or molten iron, wire rod, hot rolled steel, as well as cement kilns. The pyrometer can look into a process and measure the target temperature from a distance, providing an accurate reading while eliminating problems associated with contact measuring devices. Dual infrared wavelengths input signals overcome application challenges such as small targets, variable emissivity, dust, water or other interfering media between the target and the pyrometer. Accurate temperatures are obtained even when the target is 95% obstructed. PM-616 pyrometer also has a fiber optic option to utilize in applications with high electromagnetic interference or high temperatures. The lens and fiber optic cable can withstand up to 300 C with air purge connected. 2 Description 2.1 Model Nomenclature PM- 6 16 - FOC- 024 Input power supply 24VDC Lens with fiber optic cable Leave blank for standard lens Upper limit temperature 1600 C Lower limit temperature 600 C Logika two color infrared pyrometer Figure 2.1 PM-616 Model Nomenclature P a g e 2

2.2 Operating Principle Logika PM-616 pyrometer uses a state-of-the-art photodiode to sense the infrared energy from the target. Our pyrometer measures infrared energy emitted by the target at two wavelengths and calculates the ratio of these measurements to determine the target temperature. Since the emissivity of the two wavelengths is identical in same environment, it does not influence the accuracy of the temperature measurement. The primary advantage of PM-616 over thermocouple temperature measurement is that the pyrometer accurately measures the target temperature by way of non contact means and responses much faster. Compared with single wavelength pyrometers, the advantages of the Logika PM-616 two-color pyrometer are: 1. Overcomes optical fouling or interfering media between the target and the pyrometer, such as dust, dirt, smoke, and water vapor, to yield accurate temperatures. 2. Automatically compensates for changes in target emissivity or varying distances between the target and pyrometer. 3. Almost no restrictions to pyrometer s field of view, leaving more flexibility for pyrometer mounting. The PM-616 can accurately measure the target temperature even with as little as 5% of the field of view. 4. PM-616 can also switch to single color mode for special field applications. The PM-616 also has built-in temperature slope adjustment for calibrating the pyrometer to the specific characteristics of the target metallurgy, and a visible target aiming laser for easy installation. See Section 5.2. 2.3 Specifications Power Input Power loss protection Wavelength Response time 24 VDC ±10% @ 210 ma Reinstates all previous setup parameters when power is restored One-color mode: 0.75-1.1μm Two-color mode: 0.75-1.1μm and 1.1μm Adjustable the fastest response time is 20 ms P a g e 3

Accuracy Repeatability Operating temperature ±(0.5% x Measured temperature+1 C) ±0.1% Full Scale No water cooling: -20 C to +55 C (-4 F to +130 F). With water cooling: -20 C to 120 C (-4 F to 250 F) Fiber optic lens: -20 C to +300 C (-4 F to +570 F). Humidity Relative humidity range: 10-95% Measuring Range 600-1600 C (1112 F to 2912 F) Field of View One-color mode: D/S=50:1 for standard and FOC pyrometers. D is the distance between the infrared pyrometer and the target S is the target diameter. See Figure 3.1 for more details. Two-color mode: No restriction to the field of view. The target size can be much smaller. If temperature is greater than 900 C, the maximum signal attenuation ratio can be 95%. Display mode: Focus range Calibration coefficient Alarms output: Analog output 4 digit LEDs. Display peak, valley, average or real time optional 0.5m- Two color mode: Temperature slope, 0.850-1.150. Adjustable in 0.001 increments (0.001 results in 1.4 C ). One color mode: Emissivity rate, 0.10-1.00 adjustable in 0.01 increments (0.01 results in 1.0 C ). High or low process temperature alarm, rated 0.2A at 220 VAC, 0.5A at 30 VDC, MOS relay output. Ambient temperature high or low alarm Linear 4-20 ma (or 0-20mA) proportional to temperature Linear 0-10VDC proportional to temperature Aiming method Visible aiming laser for standard PM-616 Warm up time 10 minutes P a g e 4

Housing Hermetically sealed stainless steel enclosure rated IP66, includes purge air and cooling water connections. Optional fiber optic lens assembly includes air purge fitting. Size 370mm L X 100mm W X 190mm H (14.5 L X 4 W X 7.5 H) Weight 4 kg (8.8 Lbs) 3 Location and Mounting 3.1 Pyrometer Location Basic installation considerations: Pyrometer should not be installed above heat sources, also avoid directly exposure to water vapor, excessive dust or smoke. If harsh ambient environment is unavoidable, connect clean, dry air to the air purge fitting on the pyrometer enclosure. Heat shielding or fan can also be applied to dissipate water vapor or smoke. If conditions allow, mount the pyrometer as close to the target as possible. This will supply enough infrared energy for the pyrometer to provide strong signal. At the same time, the pyrometer must be kept far enough to protect it from being over heated. Installation distance: depends on color mode selected. o One-color mode: target should be covered by the pyrometer s field of view. Check Figure 3.1 and Figure 3.2 for reference. o Two-color mode: no restrictions to field of view. For example: If the target diameter is 20mm, pyrometer Displacement Coefficient is 50:1 (D/S=50:1). In one-color mode, according to Figure3.1 and Figure3.2, the pyrometer has to be installed less than 1 meter away from the target. In two-color mode, it is not necessary for the target to be totally covered by the field of view, the pyrometer can be installed more than 1 meter away from the target. Maximum ambient temperature for the pyrometer o 50 o C (122 o F) without water cooling o 120 o C (250 o F) with water cooling connected. See Figure 4.2 P a g e 5

Figure 3.1: One color mode Pyrometer Field of View Ideal Acceptable Not Acceptable PM Series Field of View Target is larger Target is equal Target is smaller Figure 3.2 One-Color Mode Pyrometer Ideal Target Size P a g e 6

3.2 Pyrometer Mounting Installation PM-616 has an adjustable mounting foot which is secured using a M10 bolt. Aiming - For standard pyrometer, use the aiming laser to properly align the pyrometer with target. 3.3 Lens with Fiber optic cable Install the lens with supplied mounting bracket. Check the section 3.1 for installation considerations. The maximum ambient temperature for the lens and fiber optic cable assembly is 300 o C (570 o F). Use a laser pen for alignment, see Figure 3.3. The laser spot on the target is for the pyrometer to receive the radiation energy and calculate the temperature, make sure the spot area is flat and no sharp edge. Figure3.3 Lens with Fiber optic cable Setup P a g e 7

4 Utility Connections 4.1 Electrical Connections All electrical connections (power and signal) are made via a 12-pin connector and mating cable for the junction box connections. Cable Specification Standard cable length is 2.0 meters; minimum bent radius for cable is 30mm. Other cable lengths are available from Logika Technologies Inc. upon request. Pyrometer Connector Outside View Cable Assembly Shielded TEFLON, 10 Conductor - 24AWG - 2.0M One end: Binder 423 Series 12 pin female, PN 9951304012 The other end: terminal pins Function Wire color Pin assignment DC Power Brown (1) +24VDC input Red (2) 0VDC Analog Orange (3) 0-10VDC Output Yellow (4) 4-20mA Green (5) Analog Common Binder 723 series 12 pin male connector, PN: 0901310012 Static Blue (6) 24VDC output on PNP Upper limit alarm output Pin2(red) as 0VDC Max Load 100mA Upper limit Purple (7) Closed=Alarm Relay Gray (8) Lower Limit White (9) Closed=Alarm Relay Black (10) Figure 4.1 Pyrometer connector and Cable assignment Junction Box Wiring Please see the Table 4.1, Appendix Figure 7.4 and Figure 7.5 for pyrometer wiring terminal description. The supplied cable should be connected directly to the terminals of a junction box. Junction box is shielded and connected to ground to eliminate electrical noise, preventing triggering false detection. Any unused output wires must have insulation protection or be connected to a free terminal in junction box. For Junction Box with AC-DC converter: AC Input 85V-265VAC, connect to L, N, E P a g e 8

Cable No. Color Function Junction Box Number Junction Box Name 1 Brown +24VDC 1 +24V 2 Red 0V 2 0V 3 Orange Analog 0-10V Output 3 0-10V 4 Yellow Analog 4-20mA Output 4 ma 5 Green Analog Output Common 5 GND 6 Blue PNP output (Upper limit )alarm) 6 PNP 7 Purple Upper limit alarm closed=alarm 7 Upper 8 Gray Upper limit alarm Common 8 Upper 9 White Lower limit alarm closed=alarm 9 Lower 10 Black Lower limit alarm Common 10 Lower Table 4.1 Cable Terminal Wiring Description 4.2 Water Cooling Connection General description Water cooling is required when the ambient temperature is higher than 50 o C (122 o F) to protect electronics inside pyrometer tube from overheating, the connectors are two Φ10mm OD barbed fittings on the enclosure. Stainless steel heat exchanger tubing is embedded in the housing for efficient heat removal using circulating water. Cooling Water Requirements Clean industrial water Maximum water inlet temperature 25 o C (77 o F) Maximum water pressure of 4 bars (58 PSI). Water flow rate - 1 to 2 L/min (0.26 to 0.53 gal/min) Connections Use Φ10mm ID or 3/8 ID hose for connections One fitting is connected to plant s water supply The other one is connected to drain Both fittings should be secured with hose clamps Setup the cooling water flow rate by Figure 4.2 P a g e 9

C 160 Ambient Temperaature 140 120 100 8 C 25 C 20 C 80 60 Water 0.3 0.5 1.0 1.5 2.0 L/M Figure 4.2 Ambient Temperatures vs. Water Flow Rate 4.3 Purge Air Connection Description- Compressed plant air can be used to protect the lens from dust and vapor. Purge air cleans the lens, reduces maintenance times, and prolongs pyrometer s life in where dusty or corrosive vapor is present. Purge Air Requirements Must be clean, dry instrument air no oil, dust and contaminants included. Poor air quality will result in dirty lens and decrease pyrometer performance. If the quality of compressed air can t be guaranteed, it should not be connected to avoid lens contamination and affect the pyrometer performance. Air filtration prior to the inlet fitting is recommended to improve the quality of purge air Air Pressure range from 50 to 200 g/cm 2 (0.7 psi to 2.8 psi) Air Flow rate from 4 to 16 L/min (0.14 to 0.56 ft 3 /min) Connection- Connect the plant air source to the purge air barbed fitting on the sensor s lens shroud with Φ10mm ID (or 3/8 ID) hose. Purge air flows out of the sensor shroud and dissipates into the ambient environment. P a g e 10

5 Operation 5.1 Controls PM-616 control panel is located at the rear of the pyrometer. The various functions are described in greater detail below. To reach control panel: Use M2.5 Allen key to remove the back cover from unit Unthread the glass cover on the pyrometer body by turning it counterclockwise!!! When operating on the control panel, please note: o The pyrometer tube may slide out of cooling tube if angled downwards. Keep unit level when disassembling for menu adjustment. o The pyrometer tube is sealed during manufacturing to retain accuracy and quality. Warranty is void if pyrometer tube is dismantled for any reason. 5.2 Set Menu Functions and Programming In display mode: Press to switch between one-color and two-color mode Press to switch temperature display between F and C 1 2 3 4 5 6 13 12 11 10 9 8 7 Figure5.1 Keypad setup sequence Press SET repeatedly to choose setup parameters Press ENTER to display current value Use the arrow key to change the value P a g e 11

Press ENTER again to save the new value and EXIT setup Set Menu 1- Emissivity/Slope Adjustment One-color mode: Emissivity setup value Emissivity: The relative ability of target measured surface to emit energy by radiation. It is the ratio of energy radiated by a particular material to energy radiated by a black body at the same temperature. A true black body would have an emissivity = 1 while any real object would have emissivity < 1. By adjusting the emissivity, the pyrometer can accurately measure target temperatures. If the target s emissivity is setup higher than its true value, the measured temperature by pyrometer will be lower than the actual temperature. The emissivity data in the table below is for reference only. Material surface finish can cause varying emissivity. If the metal surface is slightly oxidized and dirty, its emissivity will drop significantly. Table 5.1 One-color emissivity table for different materials Material and status Steel: Polished not oxidized Polished slightly oxidized Rough machined, not oxidized Rough machined, slightly oxidized Severely oxidized Liquid state Cast iron: Polished not oxidized Polished slightly oxidized Temperature range( C) 100-1200 100-1200 Emissivity (wavelength close to 1μm) 0.05-0.1 0.45 0.25-0.35 0.5-0.6 0.8-0.95 0.35-0.45 0.3 0.5 P a g e 12

Rough machined, not oxidized Rough machined slightly oxidized Severely oxidized Liquid state Stainless steel Clean and smooth surface Oxidized over 800 C Copper: Smooth slightly oxidized Sever oxidized Liquid state Room temperature-800 100-1000 100-1000 0.5 0.75 0.8-0.95 0.35-0.4 0.2-0.25 0.85 0.5 0.8 0.15-0.2 Iridium 0.25-0.3 Uranium 0.5-0.55 Mercury (liquid) 0.2-0.25 Cobalt: 100-1000 Polished, not oxidized Polished, slightly oxidized Polished, severely oxidized Rough machined, not oxidized Rough machined, slightly oxidized Rough machined, severely oxidized 0.25 0.5 0.7 0.35 0.55-0.6 0.7-0.75 Nickel and nickel coating: 100-1000 Polished, not oxidized Polished, slightly oxidized 0.25 0.4 P a g e 13

Polished, severely oxidized Rough machined, not oxidized Rough machined, slightly oxidized Rough machined, severely oxidized 0.8-0.9 0.35 0.5 0.8-0.9 Black oxide nickel 500-1000 0.8-0.9 Bismuth 0.34 Silver and silver coating: 100-900 Rough machined, not oxidized Rough machined, slightly oxidized Tungsten Ribbon, polished, not oxidized (tungsten lamp) 0.1-0.25 0.15-0.35 1500 0.3-0.39 0.3-0.37 0.3-0.36 Magnesium : polished, not oxidized 0.1-0.2 Platinum: Polished, not oxidized Polished, slightly oxidized Polished, severely oxidized Rough machined, not oxidized Rough machined, slightly oxidized Rough machined, severely oxidized Platinum black Tantalum: Polished, not oxidized Polished, slightly oxidized 50-1000 0.25 0.3 0.4 0.3 0.4 0.4-0.5 0.95 100-1000 0.2 0.45 P a g e 14

Polished, severely oxidized Rough machined, not oxidized Rough machined, slightly oxidized Rough machined, severely oxidized 0.75-0.85 0.3 0.6 0.75-0.85 Palladium 0.33 Antimony 0.5-0.65 Beryllium: smooth and oxidized 0.3-0.4 Brick: White firebrick Silica Brick 100-1000 1000 0.3 0.5-0.6 Yttrium 0.3-0.35 Alumina Granularity 1-2 Micron Granularity 10-100 Micron Iron-NiChrome 200-1000 1000-1500 0.2-0.4 Polished, not oxidized Polished, slightly oxidized Polished, severely oxidized Rough machined, not oxidized Rough machined, slightly oxidized Rough machined, severely oxidized 0-1000 0.3 0.4 0.8-0.9 0.35-0.4 0.6 0.8-0.9 Carbon Carbon black Graphite 0-1500 0-1500 0-1500 0.8-0.85 0.95 0.8 P a g e 15

Procedure to adjust the emissivity in one-color mode: 1. Set the pyrometer to work in one-color mode (Mode LED off). 2. Determine actual target temperature with a contact RTD, thermocouple or other appropriate instrument. 3. Press SET button until the display shows 1- (flashing), then press ENTER to adjust the emissivity. 4. Use the up and right arrow buttons to adjust the value. 5. The emissivity adjustment range is from 0.10 to 1.00; in 0.01 increments. For 0.01, results in 1.0 C, factory default value is 0.95. 6. Press ENTER to save the adjustment and return to the temperature display mode. Two-color mode: Temperature Slope Adjustment (Calibration) Temperature slope is a coefficient to compensate for the two wavelengths emissivity difference. Note: The listed ratios are approximate values and can change with alloy surface condition and oxidization. For these oxide metals, the temperature slope setup value is 1.000 Cobalt Nickel Iron Stainless steel Steel For these metals, the temperature slope value is 1.030 Cobalt Iron Stainless Steel Rhodium Tungsten Molybdenum Platinum Steel Nickel Tantalum Cast Iron Slope adjustment allows the user to refine the accuracy of the pyrometer for specific applications. This feature can be used to calibrate the pyrometer. 1. Use a reliable thermometer to measure the surface temperature of the target. If temperature readings vary in different measured areas, use the average reading. 2. Set the pyrometer to work in two-color mode (Mode LED ON) 3. Press SET button until the display shows 1- (flashing), then press ENTER to adjust the temperature slope. 4. Use the up and right arrow buttons to adjust the value. 5. The temperature slope adjustment range is 0.850 to 1.150 in 0.001 increments. For 0.001, P a g e 16

results in 1.4 C. Factory default setup value is 1.000. 6. Press ENTER to accept the slope adjustment and return to the temperature display mode. Set Menu 2- Display Mode This feature allows the user to select different temperature display modes; Peak temperature; Valley temperature; or Average temperature values. Peak: Response time setup range from 0-999.9s. If response time is set greater than 999.9 seconds, the current display will remain unchanged. Applications: Best for moving target temperature measurement (steel plate, sheet). This function can also be used for measuring surface temperature of liquid metal when highest temperature measurement is required. Valley: Response time setup range from 0-999.9s. If response time is set greater than 999.9 seconds, the current display will remain unchanged. Applications: Best for measuring surface temperature of liquid metals when lowest temperature measurement is required. Average: Response time setup range from 0-60.0 seconds. Applications: Most field applications. For example, if there is scale on steel plate or bar, average temperature display mode should be selected. Real time display: Set response time to 0.0s. In this display mode, the sampling time is set 20ms by pyrometer and display changes each time new data is collected. 1. Press SET button until the display shows 2- (flashing). 2. Press ENTER button and use the up arrow button to select display states. Select (1) for Peak, (2) for Valley or (3) for Average. The factory default value is Average value (indicated by the number 3). 3. Press ENTER to return to the temperature display mode. P a g e 17

Temperature Actual Temperature Peak Display 0 Δt 2Δt 3Δt 4Δt Time Figure 5.2 Peak Display Temperature Actual Temperature Valley Display 0 Δt 2Δt 3Δt 4Δt Figure 5.3 Valley Display Time P a g e 18

Temperature Actual temperature Average display 0 Δt 2Δt 3Δt 4Δt Figure 5.4 Average Display Time Temperature Actual temperature Real time display 0 20ms 40ms 60ms 80ms Figure 5.5 Real Time Display Time(ms) Set Menu 3 Output Signal Integration Time This feature allows the user to average (integrate) the output signal over a set time for control purposes and to avoid wide temperature signal swings. P a g e 19

Press SET until the display shows 3 (flashing), then press ENTER to adjust the signal integration time. Use the up and right arrow buttons to adjust the integration time. The time adjustment range is 0 to 999 seconds. The factory default setting is 0 seconds. Press ENTER to return to the temperature display mode. For peak and valley temperature detection, the time adjustment range is 0-999s. For average temperature detection, the time adjustment range is 0-60s. Set Menu 4-, 5-, 6- Process Alarm Settings Use these menus to set the upper and lower alarms and the alarm deadband (to prevent alarm relay contacts chatter, this is the temperature range in which the alarm turns off after being triggered). Menu -4 : Upper Limit Alarm, default 1600 C Menu -5 : Lower Limit Alarm, default 600 C Menu -6 : Alarm Deadband coefficient, default 0.001 If temperature is lower than 600 C, lower alarm relay is triggered, Lower alarm LED indicator turns ON If temperature is higher than 1600 C, upper alarm relay is triggered. PNP output high (24VDC) upper alarm LED indicator turns ON. Note: Lower alarm may be set higher than the upper alarm Deadband coefficient range 0-0.500 Lower alarm deadband= ±deadband coefficient*lower alarm setting Upper alarm deadband= ±deadband coefficient*upper alarm setting 1. Use the up and right arrow buttons to adjust the alarm settings. Alarm settings are C (or F). 2. Press ENTER to return to the temperature display mode. Set Menu 7-, 8- Current/Voltage Analog Output Span Settings Set the linear temperature span to correspond with the current or voltage output of the pyrometer. Menu 7- : Lower Temperature for the output span, default 600 C Menu 8- : Upper Temperature for the output span, default 1600 C 1. Use the up and right arrow buttons to adjust the span settings 2. Press ENTER to return to the temperature display mode. P a g e 20

Use the following guidelines to calculate the current/voltage output that corresponds to temperature: Voltage output (0-10 V) 10 Current output (4-20mA) 4 16 T= present measured target temperature TL = output span lower limit temperature TH = output span upper limit temperature Example: Measured temperature is 943 o C; output span is 4 to 20 ma DC proportional to 700 to 1400 o C. Calculated current output at measured temperature is 4 16 943 700 1400 700 4 16 243 4 5.55 9.55 700 Set Menu 9- Aiming Laser Setup Four setups available: OFFd, OFFn, ON d and ON n. See below for details. This function selects whether the laser switch function is open or closed when the temperature limit is exceeded. The function is not available for FOC pyrometer. OFFd: Turns the aiming laser off. It will automatically turn back on when the target temperature is greater than the lower limit setup value. OFFn: Turns aiming laser off. ON d: Turns aiming laser on. After 30 minutes, the laser will turn off if the target temperature is below the lower limit setup value. ON n: Turns aiming laser on. After 30 minutes, laser will turn off. 1. Use SET and ENTER buttons to select the Aiming Laser Switch (Menu 9- ). 2. Use the up and right arrow buttons to change the setting. The factory default is OFFd. 3. Press ENTER to return to the temperature display mode. Display Menu 10- Enclosure Temperature This feature only displays the current enclosure temperature for diagnostic purpose. P a g e 21

If the enclosure temperature is higher than 70 o C, the display shows EEE1. If the enclosure temperature is lower than -10 o C, the display shows EEE2. Either of these conditions exists, steps must be taken to adjust the ambient temperature. Display Menu 11- Two Color Ratio This function only displays the ratio of the current two wavelength signals for service diagnostic purposes. Set Menu 12- Zero Compensation Gain This feature is used to adjust the detector gain to compensate for targets with a starting temperature below the specified measurement limits of the Logika PM-616 pyrometer. Use SET and ENTER buttons to select the Zero Compensation Coefficient ( Menu 12- ) The four digit number shows the coefficient; the first number represents the coefficient polarity (1 = positive and 0 = negative). The remaining three numbers show the coefficient value. Use the up and right arrow buttons to change the Zero Compensation Coefficient. This value is always set below 1.00. The factory default for the Zero Compensation Coefficient code is 10.10 which equals +0.10. Press ENTER to return to the temperature detection mode. Plority 1: Positive 0:Negative Coefficient Value X.XX No Use Figure 5.6 Zero Coefficient Gain setup Set Menu 13- Two-color mode signal attenuation ratio Attenuation Ratio = 100% Emissivity (Check Page 11 in Set Menu 1 for Emissivity). Attenuation ratio is a threshold for verifying the validation of the measured temperature. After the target temperature is calculated by the pyrometer, it calculates each wavelength s P a g e 22

emissivity at this temperature. For each wavelength, the attenuation ratio (100% Emissivity value) should not be less than the set value. If either one is higher than the set value, the pyrometer displays the lower limit temperature. This function is only used in two-color mode. The setup range is 20%-100% and the default setup value is 95%. If the attenuation ratio is set greater than 95%, this function will shut down; and again, the lower limit temperature will be displayed. For example, if the pyrometer is used to detect the temperature of tungsten filament of a light bar, usually the temperature is higher than 1500 C (2732 F). The tungsten filament (target) diameter is very small at 2mm, so the emissivity would be very low. According to Figure 5.6, if the temperature is greater than 900 C and target size is 2mm, the attenuation ratio should be set to 95%. This means that as long as the emissivity value for each wavelength signal is not less than 5%, the calculated temperature is valid. In this case, the two-color mode, can still accurately calculate the temperature. In single color mode, it would be very hard to get an accurate target temperature in this situation. Table 5.2 Attenuation Ratio Setup Value Target size(diameter) Accurate measurement attenuation ratio Simplified measurement attenuation ratio 2mm-10mm 95% 95% 10mm-30mm 90% 95% 30mm-100mm 80% 95% >100 mm 70% 70% The values above are for reference only when setting up the attenuation ratio. The value should be adjusted depending on application environment and target size. 1. Use SET and ENTER buttons to select the signal attenuation ratio setup ( Menu 13- ) 2. Use the up and right arrow buttons to change the value. 3. Press ENTER to return to the temperature display mode. P a g e 23

100 90 20 10 Max allowed attenuation ratio (%) 80 70 60 50 40 30 20 10 Attenuation ratio can be set at 95% 5 2 1 Emissivity 600-700 1112-1292 800 1472 900 1652 1000 1832 1100 2012 1200 2192 1300 2372 1400 2552 1500 2732 1 1600 1912 C F 5.3 Debugging Target temperature Figure 5.7 Two-color mode signal attenuation ratio Adjust emissivity according to material properties (a) Use a thermocouple to measure the real temperature of the object, and then adjust the slope until the test result is the same as the thermocouple. (b) If the object is painted black, the emissivity can reach 0.98. Test the adjacent area, and adjust the slope until the test result is the same as the thermocouple. Now the slope has been properly adjusted. P a g e 24

Table 5.2 PM-616 Keypad Operation Function Description Default Key SET Setup Parameters Display parameters from 1- to 13- each time button is pressed. Press ENTER to Exit N/A SETUP 1- Slope/Emissivity Adjustment Single Color: Emissivity Rate, Range 0.10-1.00 Two Color: Temperature Slope: 0.850-1.150 0.95 1.000 2- Display/Sample Mode 1 = Peak 2 = Valley 3 = Average 3 3- Response Time 0.0-999.9s adjustable. 0s=20ms, internal setup value, real time display 0.5 4- Upper Limit Alarm Modify the Upper limit alarm temperature value 1600 C 5- Lower Limit Alarm Modify the Lower limit alarm temperature value 600 C 6- Alarm Deadband Modify alarm deadband value 0.001(0.1%) 7- Analog Output Span Lower Limit Temperature corresponds to linear analog current/voltage output span lower value 600 C 8- Analog Output Span Upper Limit Temperature corresponds to linear analog current/voltage output span upper value 1600 C 9- Aiming Laser Standard PM only, not for fiber optic PM. 4 setups available: OFFd, OFFn, ONd, ONn. See setup menu 9- for details. OFFd 10- Enclosure Temperature Setup constant at 40 C. If display is higher than 50 C, the pyrometer should be cooled down N/A Display only 11- Two Color Signal Ratio Only used for pyrometer diagnostic purposes. In two color mode, select 3(average) in setup 3-, the display value is the ratio of the two wavelength signals N/A Display only 12- Zero compensation gain Adjusts the pyrometer gain to compensate for targets with a starting temperature below specified measurement limits. First digit on left 1=positive, 0=negative. The remaining 3 numbers are the coefficient value. The value should always be set below 0.30 10.10 (+0.1) 13- Two Color Signal Attenuation Ratio Only used in two color mode. If setup value is greater than 95%, this function is off. See setup menu 13- for details. 95% P a g e 25

6 Maintenance 6.1 Regular Maintenance Regular attention to the following will ensure accurate and prolonged operation of the pyrometer: Lens Cleaning - Routinely check the lens glass for dust or oil residue. If necessary, clean glass with alcohol and lens paper or soft cloth. Calibration - Occasional calibration using the temperature slope adjustment (see Set Menu 1 ) will ensure that maximum accuracy is maintained. 6.2 Instrument Return Contact us at 1-888-856-4452 (1-888-8LOGIKA) with the Serial Number of your pyrometer before you return our product. If the problem cannot be resolved by telephone or email, we will provide you with a return authorization number. Please return to: Logika Technologies Inc. 2-2857 Sherwood Heights Drive, Oakville, ON, L6J 7J9 Canada Do not return the pyrometer without a return authorization number. If the product is out of warranty, we will provide a repair estimate and then complete the repairs upon your approval. P a g e 26

7 Appendix Figure7.1 PM-616-024 Dimension Figure7.2 PM-616-FOC-024 Dimension P a g e 27

Figure7.3 Junction Box Mechanical Dimension NC NC UPPER UPPER LOWER LOWER PNP GND ma 0-10V 0V OUT +24V OUT J1 J2 NC NC UPPER UPPER LOWER LOWER PNP GND ma 0-10V +24V IN 0V IN EARTH J3 + - E Filter Figure7.4 DC-DC Junction Box Connection Drawing P a g e 28

AC-DC Converter DC Filter L N EARTH J3 J1 +24V OUT 0V OUT 0-10V ma GND PNP LOWER LOWER UPPER UPPER NC NC +24V OUT 0V OUT 0-10V ma GND PNP LOWER LOWER UPPER UPPER NC NC J2 Figure7.5 AC-DC Junction Box Connection Drawing Figure7.6 Pyrometer control panel layout P a g e 29

Front Rear Pin Connection 1 7 Upper Limit 2 8 Alarm Lower Limit Alarm LOGIKA Technologies Signal Ground Voltage In Current In + - + 3 4 5 6 9 10 11 12 0V Out DC +24V Out E L 13 N Figure7.7 Universal Temperature Display mechanical dimension P a g e 30