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Logika Technologies Inc.

Model PMP-716 Operator’s Manual Rev 1.2 Aug-13

Web

: www.logikatech.com

Phone

: 905-829-5841

Fax

: 905-829-8787

Email

: [email protected]

P a g e

| 19

6.3

Emissivity of Materials

Material Emissivity Table

Material and Status

Temperature Scope(

℃

)

Emissivity(about 1μm)

Steel:
Polished without oxidation
Polished with slight oxidation
Roughened without oxidation
Roughened with slight oxidation
Serious oxidation
Liquid state

100

～

1200

0.05

～

0.1

0.45

0.25

～

0.35

0.5

～

0.6

0.8

～

0.95

0.35

～

0.45

Cast iron:
Polished without oxidation
Polished with slight oxidation
Roughened without oxidation
Roughened with slight oxidation
Serious oxidation
Liquid state

100

～

1200

0.3
0.5
0.5

0.75

0.8

～

0.95

0.35

～

0.4

Stainless steel:
Smooth surface
Oxidized through a temperature over 800

℃

room temperature

～

800

0.2

～

0.25

0.85

Copper:
Smooth slight oxidation
Serious oxidation
Liquid state

100

～

1000

100

～

1000

0.5
0.8

0.15

～

0.21

Iridium

0.25

～

0.3

Uranium

0.5

～

0.55

Hydrargyrum (liquid state)

0.2

～

0.25

Cobalt:
Polished without oxidation
Polished with slight oxidation
Polished with serious oxidation
Roughened without oxidation
Roughened with slight oxidation
Roughened with serious oxidation

100

～

1000

0.25

0.5
0.7

0.35

0.55

～

0.6

0.7

～

0.75

Nickel and its plate:
Polished without oxidation
Polished with slight oxidation
Polished with serious oxidation
Roughened without oxidation
Roughened with slight oxidation
Roughened with serious oxidation

100

～

1000

0.25

0.4

0.8

～

0.9

0.35

0.5

0.8

～

0.9

Black nickel oxide

500

～

1000

0.8

～

0.9

Bismuth

0.34

Silver and Silver Plate Plate:
Roughened without oxidation
Roughened with slight oxidation

100

～

900

0.1

～

0.25

0.15

～

0.35

Tungsten
Belt roughened without oxidation
(tungsten ribbon lamp)

1500
2000
3000

0.3

～

0.39

0.3

～

0.37

0.3

～

0.36

Magnesium: Roughened without oxidation

0.1

～

0.2

Platinum:
Polished without oxidation
Polished with slight oxidation
Polished with serious oxidation
Roughened without oxidation
Roughened with slight oxidation
Roughened with serious oxidation

50

～

1000

0.25

0.3
0.4
0.3
0.4

0.4

～

0.5

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Summary of Contents for PMP-716

Page 1: ...Model PMP 716 Handheld Pyrometer Operator s Manual Rev 1 2 ...

Page 2: ...nsor Location 5 3 2 Sensor Aiming 6 3 3 One Color Mode 6 3 4 Two Color Mode 7 4 Utility Connections 7 5 Operation 9 5 1 Controls 9 5 2 Set Parameters 11 5 3 Status Information 14 5 4 Calibration 14 5 5 Communication 16 6 Notes 17 6 1 Environmental Temperature and Humidity 17 6 2 Maximum Average and Minimum Sampling 17 6 3 Emissivity of Materials 19 6 4 Two Color Slope Coefficient 20 7 Maintenance ...

Page 3: ...s like emissivity slope response time sampling mode etc It also has an interior ambient temperature compensation unit which allows the instrument to work in temperatures of 0 50 C 32 122 F PM 716 is operated by a 9V 6LR61 battery It also has real time data storage capacity which can save up to 1000 data points 2 Description 2 1 Operating Principle This two color colorimetric infrared pyrometer sen...

Page 4: ...perature is derived from the radiation energy This works under the following conditions If the emissivity is known and constant The object fills the entire field of view There is no interference from smoke or dust Two color systems measure the ratio of two readings and calculate the temperature from the ratio rather than the absolute value of readings This minimizes the effects of emissivity optic...

Page 5: ...minated silicon infrared photocell Field of View One color mode D S 90 1 D is the distance between pyrometer and the target S is the target diameter See Figure 3 1 for more details Two color mode No restriction for 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 Focal Range 0 5m to Accuracy 0 75 full scale at amb...

Page 6: ...should not be used above a heat source for extended periods of time Avoid direct exposure to water vapor or excessive dust or smoke The Logika PMP 716 should be used close enough to the target to allow enough infrared energy to reach the detector in order to provide a strong signal but far enough from the target to minimize the amount of heat that reaches the enclosure s electronics Use Figure 3 1...

Page 7: ...be used to measure the average temperature in an area The focal range of the instrument is 0 5m and the distance can be infinite as long as the measured area is large enough When selecting one color mode the object should completely cover the visual field usually 20 larger than the visual field This mode can be used for objects with level surfaces no bending with a viewing angle within 30 to the t...

Page 8: ... in the environment Measuring distance changes Part of the object is obscured Two Color temperature measuring mode measures the max temperature in an area regardless of the size of target Since the two sampled signals will vary at the same rate the ratio between the two signals will not change Two Color mode permits the measurement angle to be smaller than 45 When the background temperature is hig...

Page 9: ...y Remove batteries if the unit is inactive for an extended period of time It can also be operated with a 9 24VDC 200mA power supply with polarity protection and instantaneous over voltage protection When supplied from an external source the unit automatically disconnects the battery and runs continuously in External Power Mode The Communications plug allows the user to upload readings to a compute...

Page 10: ...ing numerical parameters Enter confirms the selection while in the parameter list If pressed while in SCAN mode it stores the current reading If pressed while in RECALL it will display the most recently saved reading Pressing it a second time gives the option of deleting all saved readings or returning to SCAN mode Time HH MM SS Date MM DD YY Real Time Temperature in C F LAL Low Alarm Limit HAL Hi...

Page 11: ...creases the selected value button moves the cursor down or decreases the selected value In SCAN Mode this button will toggle between 1C One Color Mode and 2C Two Color Mode The instrument will return to its default mode as selected in the parameters when power is cycled Power button turns the pyrometer on and off Scan mode Recall mode Press Recall toggle SCAN RECALL In SCAN mode press ENTER can sa...

Page 12: ...ly applies to One Color Operation See chart for typical emissivity settings Emissivity coefficient 0 01 Reading 1 C Parameter 3 Slope Coefficient Only applies to Two Color Operation Range from 0 800 1 200 increments 0 001 Slope 0 001 Reading 1 2 C Parameter 4 Display Toggles between Celsius and Fahrenheit Parameter 5 Sample Mode Choose between Max Average and Min Parameter 6 Sample Time Max temper...

Page 13: ...dation of the measured temperature After the target temperature is calculated by the pyrometer it calculates each wavelength s emissivity at this temperature For each wavelength the 2C energy reduction 100 Emissivity value should not be lower than the set value If either one is higher than the set value the LEDs display the lower limit temperature of the pyrometer This function is only used in two...

Page 14: ...e Simplified measurement with Energy Reduction value 2mm 10mm 95 95 10mm 30mm 90 95 30mm 100mm 80 95 100 mm 70 70 Parameter 13 Real Time Clock Calendar Hour 0 23 Minute 0 59 Year 2002 2099 Month 01 12 Date and Day 01 31 Mon Sun Press Enter then to Update Time to save new settings The clock is maintained by a high capacity Lithium battery BR2330H2A 3V 255mAh Under normal working conditions the batt...

Page 15: ...ut 10 hours When the power is OFF the current leakage is 1uA When the battery voltage is low the battery symbol changes to empty In this situation all the parameters in EEPROM are locked and can t be set until the battery is replaced 5 4 Calibration The instrument arrives calibrated to a Black Body Standard that is traceable to NIST National Institute of Standards and Technology The user may re ca...

Page 16: ...thermocouple Set the one color emissivity coefficient at 0 99 1 00 two color slope at 1 000 as follows One Color span coefficient Setting range 0 20 2 00 default 1 00 adjustment step 0 01 if coefficient 0 01 temperature displayed 1 C Calibration is done at above 2 3 of the instrument measurement range like 1200 C 2192 F Adjust the blackbody to 1200 C set PM716 to one color mode and compare the act...

Page 17: ... s lower limit temperature measuring section such as 710 C 1310 F Set the instrument to Two Color mode and compare the temperature of the blackbody with the displayed temperature value Adjust Two Color zero point compensation coefficient and make them equivalent 5 5 Communication Digital output Format ASCII RS232 9600 baud 8 data bits one stop bit and no parity check Data Transmitting Format 11 25...

Page 18: ...color mode 6 C 11 F 6 2 Maximum Average and Minimum Sampling Maximum Peak Value Temperature Measuring Method Space PMP 716 Space SN1000 CR LF Name of internal instrument Serial number of instrument No 47 No 48 54 No 55 No 56 61 No 62 No 63 The holding time of a Maximum value can be set through the buttons on the back of the unit The instrument will hold and display the Max value of varying real ti...

Page 19: ...trument will calculate and display the average value of the varying real time value in a selected time interval Δt This first order RC calculation can reduce the variation of temperature Application Ideal for most field applications or if there is scale or oxidation present The sampling period of Minimum value can be set through the buttons on the back of the unit This method functions similarly t...

Page 20: ... 21 Iridium 0 25 0 3 Uranium 0 5 0 55 Hydrargyrum liquid state 0 2 0 25 Cobalt Polished without oxidation Polished with slight oxidation Polished with serious oxidation Roughened without oxidation Roughened with slight oxidation Roughened with serious oxidation 100 1000 0 25 0 5 0 7 0 35 0 55 0 6 0 7 0 75 Nickel and its plate Polished without oxidation Polished with slight oxidation Polished with ...

Page 21: ...is approximately 1 03 Cobalt Stainless Steel Nickel Rhodium Cast Iron Tungsten Molybdenum Steel Tantalum Platinum Platinum black 0 95 Tantalum Polished without oxidation Polished with slight oxidation Polished with serious oxidation Roughened without oxidation Roughened with slight oxidation Roughened with serious oxidation 100 1000 0 2 0 45 0 75 0 85 0 3 0 6 0 75 0 85 Palladium 0 33 Stibium 0 5 0...

Page 22: ...nance 7 1 Regular Maintenance Regular attention to the following will ensure steady operation of the sensor Lens Cleaning Routinely check the PMP 716 lens glass for dust or oil residue When necessary clean the glass with alcohol and lens paper or soft cloth Calibration Occasional calibration see Section 5 4 will ensure that the accuracy of the PMP 716 Pyrometer is maintained 7 2 Returns of the PMP...

Page 23: ...Logika Technologies Inc Model PMP 716 Operator s Manual Rev 1 2 Aug 13 Web www logikatech com Phone 905 829 5841 Fax 905 829 8787 Email info logikatech com P a g e 22 8 Dimensions ...

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