Siemens 7MC3052-1AB68 User manual

Two-colour pyrometer
7MC3052-...
Operating instructions 06/2017

Operating instructions
SIEMENS
Two-colour pyrometer
7MC3052-...
Ident no. 1087381
(English) 06/17

Operating instructions
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dienen, vorbehalten.
SIEMENS AG
Industry Sector
DF CS SD OP ITM
Günther-Scharowsky-Str. 2
D-91058 Erlangen
GERMANY
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
http.//www.siemens.com/sirent

Operating instructions
Content
11 Product numbers ...............................................................................................1
12 General ..............................................................................................................2
2.1 Information about this manual.....................................................................2
2.2 Explanation of symbols ...............................................................................2
2.3 Liability and Warranty..................................................................................2
2.4 Copyright.....................................................................................................3
13 Safety.................................................................................................................3
3.1 Intended use ...............................................................................................3
3.2 User‘s responsibility ....................................................................................3
3.3 Safety requirements....................................................................................3
3.4 Electromagnetic Compatibility.....................................................................4
14 General Description ...........................................................................................4
15 Models ...............................................................................................................5
5.1 One-colour measurement ............................................................................5
5.2 Two-colour measurement ............................................................................5
16 Function .............................................................................................................6
6.1 Analogue output ..........................................................................................6
6.2 Switching threshold OUT1 ..........................................................................7
6.3 Output signal...............................................................................................7
6.4 Upper threshold delay.................................................................................7
6.5 Lower threshold delay.................................................................................8
6.6 Switching functions .....................................................................................8
6.7 Internal signal processing ...........................................................................8
6.8 Switching threshold OUT2 ..........................................................................9
6.9 Dirt alert ......................................................................................................9
6.10 Sync-pulse ..............................................................................................10
6.11 Inner device temperature ........................................................................10
6.12 Output signal...........................................................................................10
6.13 Upper threshold delay.............................................................................10
6.14 Lower threshold delay.............................................................................11
6.15 Setting the emissivity ratio (two-colour mode) ........................................11
6.16 Emissivity of materials (one-colour mode)..............................................11
6.17 Transmission factor (one-colour mode) ..................................................12
6.18 IO-Link ....................................................................................................12
17 Electrical connection........................................................................................13

Operating instructions
18 Shielding and Grounding .................................................................................14
8.1 Equipotential bonding ...............................................................................14
19 Operating controls and display ........................................................................15
10 Menu................................................................................................................16
10.1 Process value display .............................................................................16
10.2 Analogue output ......................................................................................16
10.3 Digital threshold OUT1............................................................................17
10.4 Digital threshold OUT2............................................................................18
10.5 Two-colour mode.....................................................................................19
10.6 One-colour mode ....................................................................................20
10.7 Advanced Features .................................................................................21
11 Menu explanation ............................................................................................22
11.1 Analogue output ......................................................................................22
11.2 Switching threshold OUT1.......................................................................22
11.3 Switching threshold OUT2.......................................................................23
11.4 Measurement acquisition (two-colour mode) ..........................................24
11.5 Measurement acquisition (one-colour mode)..........................................25
11.6 Advanced Features .................................................................................25
12 Setup ...............................................................................................................26
12.1 Two-colour mode ....................................................................................26
12.2 One-colour mode ....................................................................................27
13 Aligning and focusing the fiber optic head .......................................................28
13.1 Safety instructions and precautions ........................................................29
14 Operating parameters......................................................................................30
14.1 Setting parameters – general information...............................................30
14.2 Damping function ....................................................................................31
14.3 Peak hold function ..................................................................................32
14.4 DTD function ...........................................................................................33
14.5 Reset all parameters to factory settings .................................................35
15 Operation .........................................................................................................35
15.1 Ambient temperature...............................................................................35
15.2 Error indications ......................................................................................36
16 Theory of Non-Contact Temperature Measurements.......................................36
16.1 Advantages fo Non-Contact Temperature Measurement........................36
16.2 Measurements an Black Bodies (Cavity Radiators)................................37

Operating instructions
16.3 Measurements of Real Radiators ...........................................................37
16.4 Measurements errors..............................................................................38
17 Ways to determine emissivity ..........................................................................38
17.1 Emissivity coefficient tables (One-colour mode) .....................................39
18 Maintenance ....................................................................................................40
18.1 Cleaning the pyrometer lens ...................................................................40
19 Shipping, packaging and disposal ...................................................................40
19.1 Inspection after shipping .........................................................................40
19.2 Packaging ...............................................................................................40
20 Accessories .....................................................................................................41
21 General technical data.....................................................................................42
22 Device-specific technical data and field of view diagrams...............................43
23 Factory settings ...............................................................................................54
24 Copyright .........................................................................................................56
1 Product numbers
Pyrometer Temperature range Product number
PK 68 AF 1 MB: 550-1400 °C, D = 70:1 7MC3052-1AB68
PKF 66 AF 1 MB: 700-1800 °C, D = 190:1 7MC3052-1AB66
PKF 66 AF 2 MB: 700-1800 °C, D = 190:1 7MC3052-1AC66
PKF 66 AF 3 MB: 700-1800 °C, D = 100:1 7MC3052-1AD66
PKF 66 AF 4 MB: 700-1800 °C, D = 50:1 7MC3052-1AE66
PKF 66 AF 5 MB: 700-1800 °C, D = 225:1 7MC3052-1AF66
PKF 67 AF 5 MB: 600-1400 °C, D = 110:1 7MC3052-1AF67
PKL 63 AF 1 MB: 650-1600 °C, 4.1 x 0.6 mm at 210 mm 7MC3052-1AB63
PKL 63 AF 2 MB: 650-1600 °C, 18.5 x 2.7 mm at 1000 mm 7MC3052-1AC63
PKL 68 AF 1 MB: 650-1600 °C, D = 175:1 7MC3052-3AB68
PKL 68 AF 2 MB: 650-1600 °C, D = 180:1 7MC3052-3AC68
1

Operating instructions
2 General
2.1 Information about this manual
The Operating Manual shall enable the user to properly install the pyrometer and
the required accessories.
Before starting installation, be sure to read and understand this entire manual,
in particular the chapter on safety! The instructions contained in this manual,
especially those concerning safety, as well as site specific regulations governing
UV radiation must be complied with at all times. It is imperative to comply with
the safety instructions and the accident protection regulations valid for the area of
application.
2.2 Explanation of symbols
Important safety-related references in this manual are marked with a symbol.
ATTENTION
This symbol points out guidelines. If you do not observe them, the device might
be damaged, malfunctioning or even fail to operate.
CAUTION
This symbol points out hints and information which should be heeded for
efficient and trouble-free operation
►Action
This symbol instructs the operator to take action.
> Reaction, Result
This symbol indicates the result of the action taken.
2.3 Liability and Warranty
All information compiled in this manual is in accordance with applicable regula-
tions. The statements made are based on state-of-the-art technology and reflect
our extensive knowledge and many years of experience.
Always carefully read this Operating Manual before beginning any work
on or with the instrument, especially prior to installation and initial setup!
The Manufacturer shall not be held liable for any damages or malfunctions
arising from a disregard of the warnings and instructions contained herein.

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Operating instructions
2.4 Copyright
This Operating Manual should be treated as confidential. It is solely intended
for use by persons involved with the instrument. This manual may not be made
available to a third party without prior Manufacturer’s consent. Please contact the
Manufacturer if the need should arise.
3 Safety
This chapter outlines all important safety aspects to be considered for optimum
employee protection and to ensure safe and reliable operations.
3.1 Intended use
The pyrometer is solely intended for use as described in this manual. Operational
safety can only be ensured when the instrument is used for its intended purpose.
The use of the pyrometer for any other purpose beyond what is specified
in this manual is prohibited. Using the instrument in any other manner will
be considered as improper.
The Manufacturer/Authorised Agent shall not be held liable for any dama-
ges or loss resulting from such unintended or improper use; in this case
the risk is solely borne by the user.
3.2 User’s responsibility
The pyrometer may only be used when it is in perfect working condition.
3.3 Safety requirements
The instrument operates at low voltage (18 – 34 V DC). The power supply unit
must conform to directive EN50178, SELV, PELV.

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Operating instructions
3.4 Electromagnetic Compatibility
The devices comply with the essential safety requirements of the Electromagnetic
Compatibility Directive 2014/30/EU (EMC Act).
When connecting a power supply unit, make sure that is also conforms to these
standards. Radio interference may arise if the pyrometer is interconnected with
such peripheral devices which have not been properly interference-suppressed.
This may necessitate additional interference suppression measures.
4 General Description
The two-colour pyrometer 7MC3052-... detects temperatures and monitors
temperature ranges without contact.
The sensor detects the infrared energy radiated by a hot object and converts this
to an electric switch signal.
The advantage of this technique is that there is no mechanical contact between
the sensor and the hot object.
The instrument is suitable for the following applications:
• Measurements at moving or hard-to-reach objects
• Measurements at surface-treated or voltage-carrying objects
• Measurements at sticky materials such as dough or aggressive chemicals
• Applications requiring fast response times.
The 7MC3052-... ratio pyrometer is designed for use in harsh industrial environ-
ments and offers a high level of functionality. The instruments are splash-proof
according to IP65 (DIN 40050). The pyrometer has an analog output and a switch
contact that can be used depending on the configuration as opener or closer.
Some types of the 7MC3052-...pyrometers are equipped with a LED spot light. The
LED spotlight shows the real size of the target spot.

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Operating instructions
5 Models
5.1 One-colour measurement
This measurement method is suitable for measurements of targets in areas where
no sighting obstructions, either solid or gaseous, exist. The target must fill the
entire target spot.
5.2 Two-colour measurement
The two-colour measuring method detects the infrared radiation at two different
wavelengths and calculates the quotient from the values obtained.
This measurement method is suitable for measurements of targets that are
partially obscured (either intermittently or permanently) by other objects, openings,
screens or viewing windows that reduce energy, and by dirt, smoke, or steam in
the atmosphere. The two color mode can also be used on targets that do not com-
pletely fill the target spot, provided the background is much cooler than the target.
Two-colour pyrometer
Type Temp. range Focus
distance
Measuring
eld size
LED spot
light
7MC3052-1AB68 550 - 1400 °C 1.5 m Ø 21 mm no
7MC3052-1AB66
700 - 1800 °C
0.2 m ... ∞ 190 : 1 no
7MC3052-1AC66 1.08 m Ø 5.6 mm no
7MC3052-1AD66 0.12 m ... ∞ 100 : 1 no
7MC3052-1AE66 0.033 - 0.045 m 50 : 1 no
7MC3052-1AF66 1.8 m Ø 8 mm no
7MC3052-1AF67 600 - 1400 °C 1.8 m Ø 16 mm no
7MC3052-1AB63
650 - 1600 °C
0.21 m 4.1 x 0.6 mm yes
7MC3052-1AC63 1.0 m 18.5 x 2.7 mm yes
7MC3052-3AB68 0.21 m Ø 1.2 mm yes
7MC3052-3AC68 1.0 m Ø 5.6 mm yes

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Operating instructions
6 Function
The pyrometer measures the temperature without contact to the target.
The infrared sensor is equipped with an analogue output and two open collector
outputs. The instrument‘s display panel shows the measured temperature.
• Analogue output 0/4 - 20 mA
• OUT1: Switching signal dependent on the set temperature
• OUT2: Switching threshold dirt alert, sync-pulse or inner device temperature
6.1 Analogue output
The pyrometer is equipped with an analogue output 0/4...20 mA. The maximum
load is 500 Ω. The output current is linear to the measured temperature. The
source must be defined before the current output can be used.
The following sources are available:
• Two-colour mode: [Ao] → [Ao.S] = QUot.
• One-colour mode: [Ao] → [Ao.S]= SpEc.
Within the overall measuring range, the required measuring range can be set to
°C or °F using parameter [Ao. _] (scale beginning) and parameter [Ao. ~]
(scale end). There is also the possibility, to switch OUT2 between 0 - 20 mA and
4 - 20 mA.
Scale beginning [Ao] → [Ao. _]
Scale end [Ao] → [Ao. ~]
Change 0/4 - 20 mA [Ao] → [Ao.04] = 0-20/4-20
First, the beginning of the scale [Ao. _] in °C or F is entered, then the end of
the scale [Ao. ~]. By changing [Ao. _] also changes [Ao. ~], so that the
range remains the same. If [Ao. _] is increased so far, that the range can not be
adhered to, as [Ao. ~] would otherwise exceed the maximum, [Ao. ~] is kept
at its maximum. If [Ao. _] is then reduced again, [Ao. ~] is also immediately
reduced again. The minimum span is given in the technical data of the respective
device.

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Operating instructions
6.2 Switching threshold OUT 1
OUT1 changes its switching status when the configured upper and lower thresh-
olds [d1.SP, d1.rP] are exceeded. The source d1.S defines the signal at
the output Out1.
Two sources are available:
• Two-colour mode: [d1] → [d1.S] = QUot.
• One-colour mode: [d1] → [d1.S]= SpEc.
First set the upper temperature value of the switching point [d1.SP]. The
temperature can be defined in °C or °F according to the unit setting. Then set
the lower threshold [d1.rP]. When you adjust the upper threshold [d1.SP]
the lower threshold [d1.rP] will change accordingly. The span remains the
same. If [d1.SP]. is lowered to a value where the span cannot be maintained
(as [d1.rP] would then fall below its minimum value), the [d1.rP] is kept with
its minimum value.
If [d1.SP] subsequently increases again, [d1.rP] also immediately increas-
es. The minimum distance between [d1.SP] and [d1.rP] is 2 K.
6.3 Output signal
The following switching functions can be selected:
• Normally open contact: [d1] → [d1.Fn]= no (normally open)
• Normally closed contact: [d1] → [d1.Fn]= nc (normally closed)
6.4 Upper threshold delay
Once the sensor has detected a temperature which exceeds the switching threshold
[d1.SP] the time delay [d1.dS] starts running. When this delay period has
elapsed, the output OUT1 activates switching. This status is maintained until the low-
er threshold [d1.rP] is violated. If this occurs before the time delay has elapsed,
the delay will reset. This function can be used, for example, to suppress spurious
impulse signals at the output.
• Upper threshold delay: [d1] → [d1.dS] = 0...10 sec.

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Operating instructions
6.5 Lower threshold delay
• The output impulse can be lengthened to make sure that the output impulse is
correctly identified, e.g. by a downstream control system.
• Lower threshold delay: [d1] → [d1.dr] = 0...10 sec.
6.6 Switching functions


1: Temperature
prole
2: Switch signal Hno
3: Switch signal Hno
with upper- and
lower threshold
delay
4: Switch signal Hnc
5: Switch signal Hnc
with upper- and
lower threshold
delay
6.7 Internal signal processing
Temperature
↓
Switch point → no / nc → Lower- / upper threshold delay
↓
Switching

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Operating instructions
6.8 Switching threshold OUT2
OUT2 changes its switching mode in relation to the set function.
The following functions are available as a source for OUT2:
• Dirt alert
• Sync-pulse
• Inner device temperature
6.9 Dirt alert
A dirt alert function is available to ensure a safe measurement for the 7MC3052-...
pyrometer. The dirt alert function warns the user if, for example, the lens, an
attached protective glass or the sighting cone of the pyrometer gets dirty during a
measurement.
The dirt alert is activated with parameter [d2] → [d2.s] → DirT. The dirt
alert is a warning function. This warning will become active when the set threshold
[q] → [q.drt]. During measurements of discontinuous processes this warning
is only active when the target object is detected by the pyrometer and the thresh-
old is violated.
target
object
line-of-sight
obstructions
debris soilingintegrated signal
attenuation
monitoring function
visual or
audible
alarm signal
steam /
dust
sighting tube /
furnace wall
protective
window
infrared
thermometer
switching
output

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Operating instructions
The parameter [DirT] dirt alert should be set to a signal intensity of
0.5 x. The pyrometer will stop to calculate the ratio temperature when the
disconnection threshold [q] → [q.LiN].
The current signal strength can be displayed with parameter Q signal
strength [q] → [q.Si6].
6.10 Sync-pulse
With active memory function DTD, a sync pulse is generated when the threshold
is violated. Further details are given in chapter 13.4).
6.11 Inner device temperature
If the internal temperature of 75 °C is exceeded, the switching mode of switching
output OUT2 changes according to its configuration. When the internal temperature
is < 70 °C, the switching output OUT 2 switches back to its original state.
6.12 Output signal
The following switching functions can be selected for dirt alert, signal strength and
inner device temperature:
• Normally open contact [d2] → [d2.Fn] = no (normally open)
• Normally closed contact [d2] → [d2.Fn] = nc (normally closed)
6.13 Upper threshold delay
Once the sensor has detected a temperature which exceeds the switching threshold
[d2.SP] the time delay [d2.dS] starts running. When this delay period has
elapsed, the output OUT1 activates switching. This status is maintained until the low-
er threshold [d2.rP] is violated. If this occurs before the time delay has elapsed,
the delay will reset. This function can be used, for example, to suppress spurious
impulse signals at the output..
• Upper threshold delay: [d2] → [d2.dS] = 0...10.0 sec.

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Operating instructions
6.14 Lower threshold delay
The output impulse can be lengthened to make sure the output impulse is correctly
identified, e.g. by a downstream control system.
Lower threshold delay: [d2] → [d2.dr] = 0...10.0 sec.
6.15 Setting the emissivity ratio (two-colour mode)
The difference between measured temperature and true temperature can be
compensated by changing the emissivity ratio. Make this adjustment for selective
interferences or when the emissivity for wavelength 1 and wavelength 2 will be
different because of the material that is being measured.
• Emissivity ratio [q] → [q.ESP] = 80 - 120 %
The pyrometer has a quick adjustment feature to set the emissivity
ratio. In process value mode, the value can be set directly with the keys
▲or ▼. It is not necessary to access the menu. When simultaneously
pressing the MODE key, the display shows the current measuring tem-
perature while the emissivity coefficient continues to be adjusted in the
background. This is an easy way to determine the emissivity when the
object temperature is known. The changed values are directly adopted.
6.16 Emissivity of materials (one-colour mode)
The pyrometer reacts to the thermal energy (infrared radiation) emitted by an
object. The ability to radiate heat depends on the type of material and its surface
properties. A description of the calculation of emissivity is in Chapter 17/ Page 38.
The ability of a body to emit infrared radiation is expressed by a material constant
called emissivity coefficient or just emissivity. This coefficient lies between 0 and
100 %. A body with ideal radiation (black body) has a coefficient of 100 %. At the
same temperature, bodies with real radiation emit a lower radiation. Therefore, the
emissivity coefficient is < 100%. For this reason, adjust the emissivity coefficient
of the target object on the pyrometer to be able to determine the exact tempera-
ture. With the configured lower emissivity coefficient, the pyrometer automatically
compensates for the lower radiation.
• Emissivity: [S] → [S.EPS] = 10...110%

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Operating instructions
For the emissivity, the pyrometer has a quick adjustment function. In the
process value display the value can directly be entered by using the ▲or
▼ button without changing to the menu. When simultaneously pressing
the MODE key, the display shows the current measuring temperature
while the emissivity coefficient continues to be adjusted in the backg-
round. This is an easy way to determine the emissivity when the object
temperature is known. The modified values are directly adopted.
Change the emissivity only when the measuring mode “one-colour” is
active.
Measuring mode one-colour mode [Ao] → [Ao.S] = [SpEc.]
6.17 Transmission factor (one-colour mode)
Besides the emissivity correction, a pyrometer must be adjusted for the transmis-
sion properties of any supplementary lens and/or protective window screwed onto
the pyrometer. Set the pyrometer for the specific transmission factor (a percentage
value) which is indicated either in the product’s data sheet or on the lens itself.
If you are not using any auxiliary lens or protective window, set the parameter to
100.0.
• Transmission factor [S] → [S.tAU] = 100.0
6.18 IO-Link
This device has an IO-Link communication interface, which requires an IO-Link-
capable module (IO-Link master) for operation. The IO-Link interface allows direct
access to process and diagnostic data and offers the possibility to parameterize
the device during operation.
The IODDs required for configuring the IO-Link device as well as detailed infor-
mation on process data set-up, diagnostic functions and parameter addresses are
available in the download area at http://www.industry.siemens.com/services/global/
de/sirent/verkauf/Bedienungsanleitungen/Seiten/Default.aspx
A 3-wire cable port Class A (Type A) must be used for IO-Link operation.

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Operating instructions
7 Electrical connection
ATTENTION
The pyrometer may only be installed by a skilled, qualified electrician. Do not
connect the instrument while the voltage supply source is turned on. Please
observe international safety regulations at all times.
►Switch to neutral and verify absence of voltage
►Connect the instrument according to the following schematic:
2
3
1
4
5
1
4
L+
L-
24 V DC
5
C/Q
2 0/4 - 20 mA
Out 2
3
shielded
Pin 1 BN (brown) L+ (Power supply 24V DC)
Pin 4 BK (black)
Open Collector switching output; Imax = 150 mA OUT1 or IO-Link
Pin 5 GY (grey) Open Collector switching output; I
max
= 150 mA OUT2
Pin 2 WH (white) Analogue output; 0/4 ... 20mA
Pin 3 BU (blue) L- (Shield)
The pyrometer must be protected against high voltage and strong electro-
magnetic fields. Use a shielded cable, connecting it via connector casing
to the device housing.
Use a flyback diode when switching inductive loads.

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Operating instructions
8 Shielding and Grounding
8.1 Equipotential bonding
The pyrometer housing is connected to the shielding via the cable connector!
Differences in ground potentials might cause an equalising current to flow between
devices through a cable shielded at both ends. In this case, be sure to install an
additional equipotential bonding line.
To avoid an equalising current, the pyrometer can be mounted electrically
insulated. The shielding must be connected to the plant’s earthing system.
If the pyrometer is installed without an insulator and without potential
equalisation, the interference voltage may not exceed 32V.