logika PMP-716 User manual

Model PMP-716 Handheld Pyrometer
Operator’s Manual
Rev 1.2

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
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Contents
1. Introduction ......................................................................................................................
. Description ........................................................................................................................
.1 Operating Principle .................................................................................................
. Specifications .......................................................................................................... 4
3. Location ............................................................................................................................ 5
3.1 Sensor Location ....................................................................................................... 5
3. 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. 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. Maximum, Average and Minimum Sampling ......................................................... 17
6.3 Emissivity of Materials .......................................................................................... 19
6.4 Two-Color Slope Coefficient .................................................................................. 0
7. Maintenance ................................................................................................................... 1
7.1 Regular Maintenance ............................................................................................ 1
7. Returns of the PMP-716 ........................................................................................ 1
8. Dimensions .....................................................................................................................

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
P a g e |
1. Introduction
The Logika Technologies Two-Color Handheld Pyrometer, Model PMP-716, is primarily used in
the metallurgical industry to measure the temperature of high speed wire rod, hot rolled steel,
molten metal and slabs/billets. Pyrometers are able to “look” into a process and measure the
target temperature from a distance, thus providing an accurate reading while eliminating
problems associated with contact measurements. Dual wavelength Infrared pyrometers are
able to overcome application challenges such as targets with a small cross-section, variable
emissivity, dust, water or other interfering media between the target and the pyrometer.
Accurate temperatures can be obtained even when the target is 90% obstructed.
The PMP-716 uses a visible laser to assist in aiming and a microprocessor to set up parameters
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 (3 ~1 °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 senses two adjacent infrared wavelengths
emitted by the target using a laminated photosensitive detector. By measuring the infrared
energy emitted from the target, the pyrometer calculates the ratio of these wavelengths to
determine the target temperature.
The primary advantage of Logika’s Two-Color Infrared Pyrometer over thermocouple
temperature measurements is that the pyrometer directly and instantaneously measures the
target temperature rather than inferring it based on the temperature of the atmosphere
surrounding the target.
The advantages of the Logika PMP716 two-color pyrometer vs. a single color pyrometer include:
•Overcomes optical fouling or interfering media between the target and the detector,
such as dust, dirt, smoke, and water vapor to yield accurate temperatures.

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
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•Automatically compensates for changes in target emissivity or varying distance from the
target to detector.
•The target does not need to fill the detector’s field of view to accurately measure the
target temperature, allowing flexibility of pyrometer location and target position
variability. An accurate measurement may be made with as little as 10% of the
pyrometer field of view used.
In one-color pyrometer, a single reading is taken and the temperature 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,
optical interference and partial views of the target.
Notes:
•The energy from spectral radiation
increases with higher temperature.
•These curves do not intersect. The
spectral radiation has higher energy
at all wavelengths.
•Each curve has one peak, and these
peaks move towards shorter
wavelengths as the temperature
increases. (Color shift)
•In blackbody radiation, the emitted
energy is only dependent on
absolute temperature.

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
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If the object remains at a stable temperature, the ratio of the radiation energy remains constant.
When the target temperature varies, the two wavelength ratio will remain the same. However,
the slope of the ratio change differs when measuring different objects (like metal and
non-metal), so a two-color slope coefficient is needed for correction.
2.2 Specifications
Measured range 700
o
C - 1600
o
C (1 9
o
F - 91
o
F)
Sensor Two-color laminated 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 ambient 3°C ±5% (73°F ±9%) and humidity of
35% to 75%
Repeatability ± °C (±3°F)
Wavelengths One-Color: 0.75 ~ 1.1µm
Two-Color: 0.75 ~ 1.1µm/1.1 µm
Response time 100 ms
Display: LCD with backlight
Modes: Real-Time: 0.1 ~ 1.0s. At 1.0s it will average over a second
Maximum (Peak): 0 ~ 999.9s
Minimum(Valley): 0 ~ 999.9s
Average: 0 ~ 60.0s
Output: RS 3 : 9600, N, 8, 1
Power Input: One 9V 6LR61 battery
AC/DC adaptor, DC input range 9- 4V

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
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Alarms: Adjustable high or low temperature alarm shows on display and
output via RS 3
Ambient: Operation temperature 0 ~ 50°C (3 ~ 1 °F)
Humidity 10 ~ 95%, no condensation
Deviation to reading at 3°C by ambient temperature:
-Two-Color Mode: ≤6°C（11°F）
-One Color Mode: ≤3 °C（5 °F）
Aiming Laser: Visible red 650 nm <3mW Class IIa
Internal Clock: Lithium battery up to 5 years life
Memory: 1000 Data points, historical data checkable
Storage temperature - 0 ~ 50°C (-4 ~ 1 °F)
Housing: Cast aluminum enclosure
Size: Enclosure: 30 mm L x 00 mm H x 70 mm W (9”L x 8”H x .75W)
Weight: 1.4 kg (3lbs)
3. Location
3.1 Sensor Location
The Logika PMP-716 Pyrometer 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 to determine the PMP-716 Pyrometer’s field of view based on its distance from
the target. Only the intended target should be seen inside the field of view. Other infrared
energy sources such as rolls, other wire or billets could interfere with accurate readings.
Example: The pyrometer measures the temperature of a 5 mm steel wire with adjacent wires
5 mm on each side of the target. Use Figure 3.1 to determine that the pyrometer may be
centered on the target wire and placed up to 1500 mm away from the target wire line (15 mm
total clearance from interference from other target wire lines).

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
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Figure 3.1: Pyrometer Distance Graph
3.2 Sensor Aiming
Use the pyrometer’s visible aiming laser to properly align the PMP-716 with the target.
Typically, the pyrometer should be centered on the target. At the same time, adjust the
detection spot by aiming laser to avoid interfering sources of infrared energy, including
reflection of hot metal or sunlight.
3.3 One-Color Mode
One-Color mode can 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 0% 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 target’s surface. This surface should be physically and chemically stable (not in the
process of oxidation, gasifying or liquefying). The view to the object must also be free of
airborne particles and obstacles. When the background temperature is higher than the
measured temperature, One-Color mode can be used as long as the target fills the entire field of
view.

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
P a g e | 7
Figure3. One Color Mode Temperature Accuracy
3.4 Two-Color Mode
Utilized when:
•Measuring small objects
•Dust, vapor or fog 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 higher than the target temperature, Two-Color mode is not recommended.
4. Utility Connections

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
P a g e | 8
DC Power Plug
RS-232 Plug
The unit uses a 9V non-rechargeable 6LR61 battery. Remove batteries if the unit is inactive for
an extended period of time.
It can also be operated with a 9- 4VDC, > 00mA 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 computer.
Battery compartment
Battery Compartment

Logika Technologies Inc. Model PMP-716 Operator’s Manual Rev 1. Aug-13
Web: www.logikatech.com Phone: [phone] Fa : 905-8 9-8787 Email: [e-mail]
P a g e | 9
5. Operation
5.1 Controls
The PMP-716 Pyrometer’s Control Panel is located at the rear of the enclosure.
Button function:
- “Laser”: turns the aiming laser ON/OFF.
- “Sys”
Press once: system information
Press twice: instrument calibration setup
-“Recall”: toggles between SCAN mode (running) and DATA Mode (replay) when pressed. It is
also used as an exit when modifying 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=High Alarm Limit
Blank=No Alarms
“Average=1 00” is
average value of
Temperature.
MAX is Maximum,
MIN is Minimum
Battery Status:
Black means OK.
White means Replace.
“Scan” is Scan Mode
“Recall” is Data
Recall Mode
C=Two-Color
1C=One Color
“Slope 1.00” means
Slope=1.0 in Two-Color
Mode
“ε=0.99” is emissivity in
One
-
Color Mode