KPM PROCESS SENSORS METIS M311 User manual

Pyrometers
METIS M311 / M322
METIS H311 / H322
With 12-pin connector, LED or OLED display and push button device configuration
Versions with integrated optics, fiber optics, PID controller, Ethernet IP-TCIP / Profibus / Profinet.
Operating Manual

METIS M311 / M322 / H311 / H322 (12-pin device connector)
2 / 81
Content
1General ...................................................................4
1.1 Information to this Manual...............................4
1.2 CE Conformity .................................................4
1.3 Limitation of Liability........................................4
1.4 Terms of Warranty...........................................4
1.5 Devices with PID Controller.............................4
1.6 Copyright .........................................................5
1.7 Customer Service / Spare Parts......................5
1.8 Disposal...........................................................5
2Safety......................................................................5
2.1 Use of the Manual ...........................................5
2.2 Supplementary Information about the
Operation.........................................................5
2.3 Warning Notes.................................................5
2.4 Safety Labels / Symbols..................................6
2.5 Device Labels..................................................6
2.6 Identification Label...........................................6
2.7 Laser Targeting Light ......................................6
2.8 Through-lens Sighting .....................................6
2.9 Electrical Connection.......................................7
2.10 Responsibility of the Operators / Process
Responsibility ..................................................7
3Overview.................................................................7
3.1 Intended Use...................................................7
3.2 Scope of Delivery ............................................7
3.3 Model Designs.................................................8
3.4 Device / Software Features.............................8
4Electrical Connection............................................9
4.1 Cable Colors and Pin Assignment (14 wire
connection cables)...........................................9
4.1.1 Factory Settings .........................................10
4.1.2 Power Supply .............................................11
4.1.3 Analog Outputs...........................................11
4.1.4 Configurable Inputs / Outputs.....................12
4.1.5 Serial Interface RS232 / RS485 (M3:
switchable RS232 / RS485; H3: only RS485)
....................................................................13
4.1.5.1 Interface Converter (Accessory)...........14
4.1.5.2 Maximum Transfer Speed.....................14
4.1.6 Shielding / Avoidance of Cable-Related
Interferences...............................................15
4.1.7 Camera Module..........................................15
4.2 Devices with additional Profibus-DP or Profinet
Connection ....................................................15
4.2.1 Pinout Profibus-DP.....................................16
4.2.1.1 Status LEDs Profibus-DP......................16
4.2.2 Pinout Profinet............................................16
4.2.2.1 Status LEDs Profinet.............................17
4.3 Devices with additional Ethernet Connection17
4.3.1 Pinout Ethernet...........................................17
4.3.1.1 Status LEDs Ethernet............................17
5Mechanical Installation .......................................18
5.1 Mounting........................................................18
5.2 Mounting Optical Fiber / Optics (only devices
with optical fiber)............................................18
5.2.1 Bending Radius of Optical Fiber.................18
5.2.2 Winding and Unwinding the Optical Fiber..18
5.2.3 Mounting the Optical Fiber .........................18
5.2.4 Connect the Optics.....................................19
5.3 Ambient Temperature....................................20
5.4 Ratio Technology / Alignment onto the
Measuring Object ..........................................20
5.4.1 Alignment with the Laser Targeting Light...21
5.4.2 Alignment with the Through-Lens View
Finder Sighting ...........................................21
5.4.3 Alignment with the Camera Module ...........22
5.5 Adjusting the Measuring / Focus Distance....22
5.5.1 Manually Focusable Optics ........................22
5.5.2 Motorized Focus Optics (only M3)..............22
5.5.3 Manually Focusable Fiber Optic Lenses....23
5.6 Spot Size Tables ...........................................23
5.6.1 Manually Adjusted or Motorized Focus
Optics..........................................................24
5.6.2 Focusable Fiber-Optic Lenses ...................24
5.6.3 Calculation of the Spot Size Diameter
Outside the Focused Distance ...................25
6Configuring the Pyrometer .................................26
6.1 Key Functions................................................26
6.2 Parameters / Settings....................................27
6.2.1 Response Time t90......................................27
6.2.1.1 Dynamic Adaptation at Low Signal Levels
(only M3 devices)..................................28
6.2.2 Peak Picker Storage Mode / Clear Time....28
6.2.3 Emissivity Slope .........................................28
6.2.4 Switch-off Level / Signal Strength / Dirty
Window Monitoring.....................................29
6.2.4.1 Switch-off Verification (only via
SensorTools software) ..........................29
6.2.5 Emissivity Ɛ (when used in 1-color mode)..29
6.2.6 Window Transmittance...............................30

METIS M311 / M322 / H311 / H322 (12-pin device connector)
3 / 81
6.2.7 Spot Size Fill Factor ...................................31
6.2.8 Temperature Sub Range............................31
6.2.9 Temperature Unit .......................................31
6.2.10 Analog Outputs...........................................31
6.2.10.1 Test Current ..........................................31
6.2.10.2 Upscale-Burnout (only via SensorTools
software) ...............................................31
6.2.10.3 Scaling Analog Outputs (only via
SensorTools software)..........................32
6.2.11 Interface Type (only M3 devices)...............32
6.2.11.1 Interface Baud Rate (only M3 devices).32
6.2.12 Address ......................................................33
6.2.12.1 Interface Delay / Answer Delay.............33
6.2.13 Key Lock.....................................................33
7SensorTools Software.........................................34
7.1 Program Start / Connecting the Pyrometer...34
7.1.1 Connect via COM Port ...............................35
7.1.2 Connect via Network ..................................35
7.1.3 Connection Window / Devices Tab ............37
7.1.4 Control Window..........................................38
7.1.5 Device Configuration..................................40
7.1.5.1 Temperature Sub Range ......................40
7.1.5.2 Laser Targeting Light Settings..............40
7.1.5.3 Device display.......................................41
7.1.5.4 Device Language..................................41
7.1.5.5 Keylock..................................................41
7.1.5.6 Analog Outputs .....................................41
7.1.5.7 Temperature Unit ..................................42
7.1.5.8 Configurable Inputs / Outputs ...............42
7.1.5.8.1 Digital Input Mode...............................42
7.1.5.8.1.1 Setups...............................................43
7.1.5.8.2 Digital Output Mode ............................43
7.1.5.8.3 Analog Input Mode..............................44
7.1.5.9 Test Functions.......................................45
7.1.5.10 Service Functions..................................46
7.1.5.11 Interface ................................................46
7.1.5.12 Data Collection (Buffer Mode / ASCII
Mode)....................................................47
7.1.5.13 Single-Point Adjustment Function.........48
7.1.5.13.1 Automatic Single-Point Adjustment.....49
7.1.5.13.2 Manual Adjustment .............................49
7.2 Graphical Measurement Representation.......51
7.2.1 Data Recording...........................................52
7.2.1.1 Data Recording Settings .......................53
7.2.1.2 Settings for the Fastest Possible
Measurement Data Recording..............54
7.3 SensorTools Viewer: Graphical Measurement
Data Playback................................................54
7.3.1 Load / Open Measurement Data File(s).....54
7.3.2 Overview.....................................................55
7.3.3 Customize Views / Measurement Data
Evaluating...................................................56
7.3.4 Copy, Save, Print, Export...........................56
7.4 PID Controller Equipment..............................57
7.4.1 Start / Stop from the Devices Tab ..............58
7.4.2 Start / stop via the Digital Input "Controller
Start / Stop" ................................................58
7.4.3 Control Parameters ....................................58
7.4.3.1 Short help for finding the control
parameters P, I and D...........................60
7.5 Profibus / Profinet Equipment........................61
7.5.1 Fieldbus Mode Selection for Reading the
Pyrometer Data ..........................................61
7.5.1.1 Writing Pyrometer Data.........................64
7.6 Communication / Options ..............................65
7.7 Spot size calculator .......................................65
8SensorFlash Software (Firmware Update) ........66
9Technical Data......................................................67
9.1 Dimensions....................................................69
9.2 Composition of the Model Number................70
9.3 Accessories ...................................................71
10 Maintenance.........................................................72
10.1 Cleaning.........................................................72
10.2 Pyrometer Calibration....................................72
10.3 Troubleshooting.............................................72
11 Communication via Interface Commands.........73
Index...........................................................................80

METIS M311 / M322 / H311 / H322 (12-pin device connector)
4 / 81
1 General
1.1 Information to this Manual
This manual enables the safe and efficient use of the device. The manual is part of the instrument and needs to
be kept in a accessible location.
Read this manual carefully before operating. For secure operation all security notes and operation procedures
in this manual need to be followed.
Local accident prevention regulations and common safety regulations of the instruments installation area must
be followed.
Illustrations in this manual are for basic understanding and can differ from the actual construction.
1.2 CE Conformity
The product conforms to the following EU directives:
2011/65/EU RoHS
2014/30/EU Electromagnetic Compatibility
DIN EN 60825-1:2015, laser class 2 (only devices equipped with laser targeting light)
1.3 Limitation of Liability
All information and notes in this manual are made under consideration of valid standards and rules, state of
technology and our expert knowledge for many years.
The producer assumes no liability for damages due to:
▪Non-observance of this manual
▪Usage out of intended use
▪Assignment of unskilled personnel
▪Unauthorized modifications
▪Technical modifications
▪Usage of spare parts that are not approved.
1.4 Terms of Warranty
Our general terms and conditions apply as well as the legal regulations valid at the time of the conclusion of
the contract.
A warranty period is 12 months from date of shipment from the Process Sensors facility. The seller will repair
or replace the sensor at its own discretion. Further claims of the buyer against the seller or its agents are ex-
cluded, especially claims for damages that are not incurred in the delivery itself. This shall not apply in cases of
intent, gross negligence, or the absence of assured properties. Damage or misuse of the product will be deter-
mined and void the warranty coverage. Repairs paid by the customer will include a 180 days warranty from
date of shipment. Transportation costs are to be paid by the customer. Any claims for damage caused by mis-
use, neglect or tampering with the sensor are excluded.
Process Sensors Corporation does not guarantee that the software is free from programming errors.
1.5 Devices with PID Controller
The PID controller is designed for temperature control in a variety of applications and has been tested in these
applications over a long period for our satisfaction, especially in fast processes. However, Process Sensors
Corporation doesn’t guarantee that the temperature control meets all the desired requirements over all pro-
cesses. Process Sensors IR / KPM Analytics North America excludes process responsibility.

METIS M311 / M322 / H311 / H322 (12-pin device connector)
5 / 81
1.6 Copyright
This manual is protected by copyrights and is intended solely for internal purposes.
It is not permitted to transfer these instructions to third parties, duplication in any kind and form - including ex-
cerpts - as well as recovery and / or notification of contents without written permission of the manufacturer, ex-
cept are internal purposes.
Contraventions are liable for damages. All other rights reserved.
1.7 Customer Service / Spare Parts
For technical information contact our customer service.
It is recommended to purchase spare parts and accessories direct from Process Sensors Corporation.
In addition, our employees are always interested in new information and experiences arising from the applica-
tion and can be valuable for improvement of our products.
1.8 Disposal
Do not dispose of the product in the household waste (WEEE Directive).
Dispose of the product properly when it is no longer usable: pyrometers include electrical and elec-
tronic waste and must be recycled, disposed in an environmentally friendly manner, or to send to the
manufacturer for disposal.
2 Safety
2.1 Use of the Manual
▪Any person who is going to work with the device must have read and understood the operating manual be-
fore beginning.
▪Operation and maintenance of the system is only to be performed by trained personnel.
▪This operating manual is to be kept and passed on.
2.2 Supplementary Information about the Operation
The following symbol is used to simplify the search for useful information:
INFO indicates useful tips, recommendations and information for efficient and trouble-free operation.
2.3 Warning Notes
The following symbols are used in this manual and, if applicable, on the device as a mark for information, re-
strictions, preventive measures and security notes. This information indicates risks and how they can be
avoided.
Please pay attention to these symbols for safety reasons.
CAUTION The hazard symbol with the signal word CAUTION on a yellow background indicates a haz-
ardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE indicates a potentially hazardous situation that can lead to property and environmental damage if
not avoided.
SAFETY INSTRUCTIONS indicate specific safety-related instructions or procedures.

METIS M311 / M322 / H311 / H322 (12-pin device connector)
6 / 81
2.4 Safety Labels / Symbols
In addition to the warning notes used in this manual, the following warning symbols are used. Warning symbols
can also be found on the device. Follow all measures marked with the label to avoid injury.
Indicates general hazards.
Indicates the hazard for the eyes from op-
tical radiation.
Indicates the hazard for the eyes due to
a class 2 laser targeting light.
Indicates the hazard of automatic startup
of machine parts.
2.5 Device Labels
On the top of the pyrometer there is the label (nameplate) as well as a warning sticker for IR sensors with a
laser targeting light.
▪Mount the device in a manner that the labels are still clearly visible after installation.
▪Keep the warning signs in legible condition
▪Replace damaged labels
2.6 Identification Label
The identification label on top of the device shows information to:
▪Distributor logo
▪Series / order number (for breakdown see chap. 9.2)
▪Temperature range, serial number, serial interface(s), analog output and
power supply
▪CE sign and crossed-out waste container product mark (see 1.8 Disposal)
▪Manufacturing company.
2.7 Laser Targeting Light
For easy alignment, the pyrometers may be equipped with a laser target-
ing light, laser class 2 (according to IEC 60825-1). The laser emits a visi-
ble red light with a power of <1 mW and a wavelength around 650 nm.
SAFETY INSTRUCTIONS
▪Never look into the direct or reflected laser beam.
▪Do not point the laser to anyone.
▪If laser radiation hits the eye, avert one's eyes immediately.
2.8 Through-lens Sighting
Devices with through-lens sighting and temperature range above 1400°C are equipped with an adjustable eye
protection filter in the eyepiece to reduce glare at high measurement temperatures. The unprotected look at
temperatures >1400°C can damage eye function permanently.
SAFETY INSTRUCTIONS
▪Only look with darkened eyepiece at objects with temperatures above 1400°C / 2552°F to protect the eyes
against glare at high radiation temperatures.
▪Before looking at the high temperatures, always first adjust the eyepiece by turning it to the darkest position.
Laser warning label on the device:
M3 11 06001300058130423-A
Temp. Range: 600 - 1300 °C
1112 - 2372 °F
Serial no: 1234
Ser. interface: RS 232/485
Analog output: 2x 0/4 - 20mA
Power supply: 18 - 30V DC

METIS M311 / M322 / H311 / H322 (12-pin device connector)
7 / 81
2.9 Electrical Connection
When connecting or working on the main voltage, general safety guidelines must be observed, e.g. when con-
necting power transformers. Touching supply voltage can be lethal. Improper installation can cause serious
injury or physical damage. Only qualified personnel are allowed to work with the main voltage.
We recommend our wiring box accessory-this is a fully assembled connection set for Process Sensors pyrom-
eters.
2.10 Responsibility of the Operators / Process Responsibility
If the device is used in the commercial sector the operator is subject to the legal responsibilities for workplace
safety.
In addition to the safety instructions in this manual, please follow safety, accident prevention, and environmen-
tal protection regulations. If the device is integrated into a system, the safety of the system in which the device
is integrated is in the responsibility of the installer of the system.
Process Sensors Corporation does not guarantee that the temperature control in all processes will meet the
desired requirements. Process Sensors Corporation excludes the process responsibility.
3 Overview
3.1 Intended Use
The herein described 2-color pyrometers Metis M3 are devices for non-contact temperature measurement.
With its short-wave spectral range they are suitable for measurements on metals, ceramics, graphite etc. with
temperature ranges depending on the model execution between 300 and 3300°C (M3) or 350 and 3300°C
(H3). M3 models have a response time of < 1 ms, H3 high-speed models have a response time < 80 µs.
3.2 Scope of Delivery
Pyrometer, software SensorTools, works certificate, user manual
(connection cables are not included in scope of delivery and need to be ordered separately).

METIS M311 / M322 / H311 / H322 (12-pin device connector)
8 / 81
3.3 Model Designs
Standard models:
1
Optics
2
Laser warning label (depending on the country of
delivery); only devices with laser targeting light
3
Device identification label
4
Depending on sighting:
- Eyepiece (models with view finder)
- Laser targeting light push button
- Connector for TV connection
5
Keypad
6
Red LED display
(devices up to ca. 10/2020)
7
Green-yellow OLED display
(devices from ca. 10/2020)
8
LEDs to indicate system ready or
active switching outputs
9
Connectors for power supply, 2 linear analog cur-
rent outputs, a serial interface (M3: RS232 /
RS485 switchable; H3: RS485) and 3 configura-
ble inputs / outputs
10
Mounting rail
11
Mounting thread (M5) for front mounting the py-
rometer or accessory
12
Fiber optics with adjustable focus distance
13
Optical fiber for transporting the heat radiation to
the pyrometer
14
Tube to protect the optical fiber connection
15
Profibus / Profinet or Ethernet connectors
16
LEDs for monitoring the network activities (de-
vices with Profibus, Profinet or Ethernet)
3.4 Device / Software Features
All functions described require the latest pyrometer firmware. If something is missing or is described differently
than on your device, we recommend updating to the latest firmware (see 8SensorFlash Software (firmware
update).
Differences in models with fiber optics:
12
11
13
3
4
5
6
8
9
10
2
Additionally at models with Profibus / Profinet:
14
15
1
11
7

METIS M311 / M322 / H311 / H322 (12-pin device connector)
9 / 81
4 Electrical Connection
4.1 Cable Colors and Pin Assignment (14 wire connection cables)
The electrical connection of the pyrometer (supply voltage and measuring signal) will be done via rear panel
connector. For this purpose, pre-assembled connection cables are available as accessories (see 9.3 Accesso-
ries). To prevent accidental short circuits, unused cable wires need to be placed, for example to the supplied
screw terminals.
Power Supply
Analog output 1
Analog output 2
Configurable In-
puts / Outputs 1–
3 1)
Configurable In-
puts / Outputs 2)
Shielding
1) Reference potential 0 V, brown
2) H3 models only RS485
|NOTICE|We generally recommend the use of the current 14-wire connection cables. Precaution when
using 12-wire connection cables that were delivered before 2015: Connection cable for the previous models
Metis and Sirius cannot be connected without restrictions on a M3 / H3 pyrometer!
Old connection cables are bridged in the cable connector to pins E-C and D-F. Connecting such a cable to a
M3 pyrometer, serial interface and analog output 2 and digital input / output 3 are connected and the galvanic
isolation between the outputs is bypassing. Thereby the pyrometer is not destroyed, but the functions are no
longer available. Using such a cable only analog output 1 is available as output.
Cable colors old Process
Sensors Corporation cable
Function
Pins
White
Power supply +24 V DC
K
Connector pins
cable socket (solder side)
Brown
Power supply 0 V DC (ground)
A
Green
+ Analog output (0/4–20 mA)
L
Yellow
- Analog output (0/4–20 mA)
B
Grey
Targeting light, external switch (bridge to K)
H
Pink
Maximum value storage, external clearing (bridge to K)
J
Orange
Screen
M
Red
DGND (Ground for interface)
G
Black
RxD (RS232) or B1 (RS485)
F
Violet
TxD (RS232) or A1 (RS485)
C
Grey / pink
RxD (RS232) or B2 (RS485) (bridge to F)
D
Red / blue
TxD (RS232) or A2 (RS485) (bridge to C)
E
E
DMH
J
L
C
BAK
FG

METIS M311 / M322 / H311 / H322 (12-pin device connector)
10 / 81
4.1.1 Factory Settings
Parameters Factory Settings
Display...................................................................... 2-color temperature
Temperature sub range ............................................ Corresponds to basic range
Response time t90 ..................................................... Min (corresponds to: M3: <1 ms; H3: <80 µs)
Emissivity slope ........................................................ 1.000
Switch-off limit........................................................... 10%, hysteresis: 2%
Switch-off verification................................................ 0 ms
Emissivity ε (channel 1 and 2) .................................. 1.00 (corresponds to 100%)
Transmittance........................................................... 100%
Spot size fill factor..................................................... 100%
Serial interface RS232 / 485..................................... RS485
Data transmission speed (baud rate)........................ 115.2 kBd
Buffer mode .............................................................. off (at “on”: buffer interval: 100 ms, single reading)
Upscale Burnout function.......................................... off
Device address......................................................... 00
Interface delay .......................................................... 00 (for RS232 and RS485)
Maximum value storage............................................ off
Laser targeting switch-off time.................................. 180 s
Analog output 1......................................................... 4–20 mA, output temperature: measured temperature
Analog output 2......................................................... 4–20 mA, output temperature: no temperature output
Digital input / output 1............................................... set to input: external switching on / off targeting light
Digital input / output 2............................................... set to input: maximum value storage external clearing
Digital input / output 3 / Analog in............................. set to input: no function
Input debounce time ........................................... 100 ms
Output activation time......................................... 0 ms
Output hold time.................................................. 10 ms
Limit switch: ........................................................ center of temp. range °C / °F; hysteresis: 10°C / 20°F
Device over temperature:.................................... 50°C / 120°F; hysteresis: 2°C / 5°F
With integrated PID controller:
Analog output 2 ..................0-20 mA, output set to
control output
Digital input / output 2.........Digital input: controller start
Setpoint ..............................Center of temp. range
Proportional band Xp..........1%
Derivative time Td ..............0 ms
Integral time Ti....................10 ms
Sampling time.....................10 ms
Ramp time..........................0 ms
P-zsc ......................100%
P-max.....................100%
P-min......................0%
P-Dyn .....................100%
AutoTune................at each start
(AutoTune power: 50%)
Ramp time..............0 ms
Hold time................0 ms
|INFO| to baud rate: The factory setting of the baud rate is set to 115 kBd to ensure longer interface cables a
working data transfer. For data transmissions with the highest speed, baud rate and buffer mode must be ad-
justed (see 7.1.5.12).
With integrated Profibus-DP / Profinet:
Field bus mode: ...................................Fixed standard format M3 series
Address................................................ 126 (delivery address)
With integrated Ethernet:
Network mode:.................................. DHCP

METIS M311 / M322 / H311 / H322 (12-pin device connector)
11 / 81
4.1.2 Power Supply
With connection to the supply voltage (standard is 24 V DC, possible range
18–30 V) the unit is ready for operation with the factory settings.
H3 devices are thermostatically compensated and need a period of time to be
ready for operation, until that time the display shows "warm-up", and the
software shows "Wait". By connecting the power supply, the current firmware
version is displayed for a few seconds on the display. Interrupt the power sup-
ply to turn off the pyrometer, e.g., by disconnecting the connector.
4.1.3 Analog Outputs
2 analog outputs are available (e.g. for an external tem-
perature display device):
▪adjustable to 0–20 mA or 4–20 mA
▪Analog output 1 always provides the measured tem-
perature (always the temperature displayed on the de-
vice display or the control window or Devices Tab in
SensorTools).
▪Analog output 2 can be assigned to provide different
signals:
- 2-color temperature
- 1-color temperature, optional channel 1 or 2
- Control output (= manipulated variable) when
equipped with a PID controller
- Device temperature
|INFO| on older models: If the same settings are possible on analog output 1 as on analog output 2, the de-
vice has an older firmware version. A firmware update to the latest version eliminates this possibility and thus
prevents the analog output 1 from accidentally providing a different temperature signal than is displayed (Firm-
ware update see section 8).
Devices
with OLED
Devices
with LED
LED 4: Operating status:
▪
Orange:
self-test phase (M3 ca. 2 s; H3 during the initialization
and thermostatic phase for ≤ 3 min.)
▪
Green: Pyrometer is ready for operation.
▪Red: a device error occurred (see 10.3 Troubleshooting).
Main display:
▪
Measured temperature with temperature unit °C or °F.
Additional displays:
2C: 2-color temperature
C1: 1-color temperature channel 1
C2: 1-color temperature channel 2
Special displays:
––––
Measuring temp. below beginning of temperature range
OVER Measuring temperature above end of temp. range
Device display set to „Suppressed“ in section 7.1.5):
––––––––––devices with LED display
No display devices with OLED display
▪
Device menu / parameters (see 6.2)
▪
Focus distance (displayed briefly) at devices with a motorized
focus optics when the arrow keys are pressed.
LEDs 1, 2, 3 (active digital
outputs):
Green:
shows activated digital
outputs (see
4.1.4 configura-
ble inputs / outputs).
Analog output 1
0/4...20 mA
Yellow (4)
Green (3)
+
-
White-green (14)
Brown-Green (15)
Analog output 2
0/4...20 mA
+
-
The outputs are galvanically isolated from the supply voltage
0 V
+24 V
Brown (2)
White (1)

METIS M311 / M322 / H311 / H322 (12-pin device connector)
12 / 81
4.1.4 Configurable Inputs / Outputs
3 ports are each available as:
▪Digital output provides a switching signal:
- Device ready to operate (device ready and error-free after self-test)
- Material detection (only M3): turns on when exceeding the beginning
of temperature range
- Limit switch when a certain temperature threshold is exceeded or fall-
ing below
- Exceeding the maximum allowed internal device temperature
- Signal strength too low (for use as pollution monitoring: allows to de-
tect the degree of contamination of the pyrometer‘s optics or of a view-
ing window or to identify interferences (dust ...) in the IR sensor’s sight path and trigger an alarm if neces-
sary).
- When equipped with PID controller: controller activity, control within definable setpoint limits, con-
trol completed successfully, hold time finished.
INFO The maximum output current is limited to 50 mA.
INFO The logic of the signal can be inverted (see 7.1.5 Device configuration →Logic NO / NC)
▪Digital input for activating functions via voltage pulse (ex-
ternal button) or continuous voltage (switch).
- Clearing the peak picker by voltage pulse.
- Start controller by voltage pulse (only devices with PID
controller).
- Activate controller as long as voltage is present at the
connection (only devices with PID controller).
- Load pyrometer configuration (Setups) by voltage
pulse (digital input “parameter selector”).
- Switch on / off laser targeting light (when equipped
with a laser targeting light)
(the targeting light will automatically switch off after 3 minutes if it is not switched off manually. The switch-
off time is adjustable via software under 7.1.5 Device configuration →Laser targeting light settings).
CAUTION Laser radiation, laser class 2, do not look into the beam.
SAFETY INSTRUCTIONS
▪Never look into the direct or reflected laser beam.
▪Do not point the laser to anyone.
▪If laser radiation hits the eye, avert one's eyes immediately.
INFO A debounce time can be selected, that is, a period the signal at least must be present at an input
so that it can be recognized and processed by the system (3 ms are specified by the pyrometer hard-
ware). Values between immediately (0) to 1 s can be set.
▪Analog input (only M3 and on port 3) for external adjustment of some
parameters between their smallest and largest setting value.
- Emissivity slope (0 mA = 0.8; 20 mA = 1.2)
- Emissivity for every channel (0 mA = 0.05; 20 mA = 1.2)
- Setpoint at devices with PID controller (0 mA = zero scale tempera-
ture, 20 mA = full scale temp.)
- Focus distance at M3 devices with motorized focus (0 mA = shortest distance, 20 mA = widest distance)
INFO The analog input requires a current source of 0-20 mA and can be generated, for example, via a
setpoint generator.
M3 / H3
>10 kOhm
0 V
+24 V
Input 1-3
0 V
+24 V
White
Grey
Pink
Blue
Brown
Note: The input is safely detected as “high” at a voltage
> 15.5 V and safely detected as “low” at a voltage < 3.0 V.
Setpoint input
via external
0...20 mA
0 V
Current source
M3
Blue
Brown
≤300 Ω
Max. 50 mA
0 V
M3 / H3
Output
+24 V
100 kΩ
White
Grey
Pink
Blue
Brown
0 V

METIS M311 / M322 / H311 / H322 (12-pin device connector)
13 / 81
For activation, input 3 must be activated via the SensorTools software in the device configuration (see
7.1.5)
4.1.5 Serial Interface RS232 / RS485 (M3: switchable RS232 / RS485; H3: only RS485)
The serial interface is used for digital communication of the pyrometer with another computer, for example a
PC for data transmission to the SensorTools software. Via this interface all temperatures are transferred (2-
color and one channel temperatures) as well as device information and parameters.
The maximum transmission speed (Baud rate) is limited by the cable length; it is halved with each doubling of
the transmission path.
▪RS232: about 7 m cable length with 19.2 kBd. Adjustable are values from 4.8 to 115.2 kBd.
▪RS485: about 2 km with 19.2 kBd. Adjustable are values from 4.8 to 921.6 kBd.
Connecting one pyrometer via
RS232 or RS485:
In a short RS232 or RS485 connection to the master
(computer receiving the data), the pyrometer is connected
directly as a point-to-point connection with the master.
It is advantageous to connect all interface cables in order
to avoid reflections.
Connecting several pyrometers via RS485:
For a reflection-free operation with longer cables, pay attention to the correct cable termination. Termination at
the physical bus is on front and rear.
When operating multiple devices (up to 32 are possible), each device needs to assign its own address (directly
on the device or via software SensorTools), under which it can be addressed later. For this purpose, initially,
each device must be connected individually and provided with an address (00-97). After that, all devices can
be connected. If specific parameters for all devices should be changed simultaneously, the global address 98
is used (there is no response from the device). If the address of a device is unknown, you can address each
device independently of the set address with the global address 99 (connect only one device).
Master
A (-)
B (+)
DGND
120 Ω
Terminating re-
sistor 120 Ω
Terminating re-
sistor 120 Ω
in the master
or manually
A
B
GND
A
B
GND
A
B
GND
A
B
GND
GND
B
A
B
A
Master at
the beginning:
120 Ω
... Pyrometer n
Terminating re-
sistor 120 Ω
Pyrometer 1
A
B
GND
B
A
B
A
120 Ω
Master
A (-)
B (+)
DGND
A
B
GND
Terminating re-
sistor 120 Ω
Master in
the middle:
Pin 2
Pin 3
Pin 5
RS485
(Master /
PC)
RS232 (PC)
Pyrometer
DGND Red
RxD Grey-pink
RxD Black
TxD Violet
GND
Pyrometer
DGND Red
B (+) Grey-pink
B (+) Black
A (-) Violet
A (-) Red-blue
TxD Red-blue
RxD
B (+)
A (-)
GND
TxD

METIS M311 / M322 / H311 / H322 (12-pin device connector)
14 / 81
4.1.5.1 Interface Converter (Accessory)
A quick and easy way to con-
nect the pyrometer to a PC is to
use an interface converter or a
connecting cable with inte-
grated interface converter (see
9.3 Accessories).
▪Interface converter DK5485: RS485 to USB for baud rates up to 921.6 kBd (recommended)
▪Interface converter DK5232: RS232 to USB for baud rates up to 115.2 kBd (slower data transfer)
A suitable driver must be installed so that the interface converter is recognized by SensorTools. After installing
SensorTools, the driver can be found in the installation directory in the "Driver" subfolder or can be downloaded
from the FTDI homepage: www.ftdichip.com/Drivers/VCP.htm.
Alternatively, the interface converters are available with a 9-pin Sub-D connector instead of open connection
wires. This can be used if a type of AM pyrometer connection cable has been ordered. This includes a 1 m ca-
ble with Sub-D socket, which can be used to flexibly connect the interface converter.
▪Interface converter DK4000: RS485 to USB for baud rates up to 921.6 kBd (recommended)
▪Interface converter DK3000: RS232 to USB for baud rates up to 115.2 kBd (slower data transfer)
4.1.5.2 Maximum Transfer Speed
To achieve the maximum transfer speed, it is necessary to change the latency time in the advanced port set-
tings from the default 16 ms to 1 ms (administrator rights required):
Pyrometer
Black
Red
Violet
Black
Violet
Red
Grey-pink
Red-blue
Black / grey-pink: B+(RS485) / RxD (RS232)
Violet / red-blue: A‾ (RS485) / TxD (RS232)
Red: GND
Black: B+(RS485) / TxD (RS232)
Violet: A‾ (RS485) / RxD (RS232)
Red: GND
2.
3.
1.
Pyrometer
Orange
Black
Yellow
Black
Violet
Red
Grey-pink
Red-blue
Black / grey-pink: B+(RS485) / RxD (RS232)
Violet / red-blue: A‾ (RS485) / TxD (RS232)
Red: GND
Orange: B+(RS485) / TxD (RS232)
Yellow: A‾ (RS485) / RxD (RS232)
Black GND

METIS M311 / M322 / H311 / H322 (12-pin device connector)
15 / 81
1. Open Device Manager (right-click on the Windows Start button ( ) and select "Device Manager" in the
menu).
2. Double click on "Ports (COM and LPT)" →USB Serial Port (COMx) of the interface converter.
3. Select the tab "Port settings" and then click on "Advanced".
4. Set the latency timer to 1 ms (in "BM Options").
4.1.6 Shielding / Avoidance of Cable-Related Interferences
For trouble-free signal transmission between the pyrometer and evaluation devices such as external displays
or PC / PLC, the connection via cable with electromagnetic shielding is necessary. Our connection cables have
a shield that is connected in the connector housing and connected to the pyrometer housing via the pyrometer
connector. On the connection side, the screen is led out via the orange wire.
To prevent interference from electromagnetic fields, potential differences or compensating currents, the shield-
ing should only be connected on one side:
▪Connect the pyrometer housing to the system ground (via one of the M5 screws on the front of the optics)
and do not connect the shielding (orange wire at the end of the cable) (but connect it for example to one of
the screw terminals supplied, to avoid accidental short circuits). The pyrometer housing is anodized and is
therefore not suitable for connecting an earth connection.
▪Mount the pyrometer ungrounded (insulated attachment, ensure, the pyrometer does not have an electrical
connection to the system at any point) on the system and connect the shielding (orange wire at the end of
the cable) to the ground of the PC or PLC.
4.1.7 Camera Module
Pyrometers with a camera module as an alignment method are
equipped with an additional connector on the rear of the
device for the output of the camera signal (CVBS signal). The
connection to a monitor or video grabber with video input is
made using the AK50 connection cable (accessory, length can
be ordered in 5 m increments up to 30 m, with cinch
connection on the opposite end).
4.2 Devices with additional Profibus-DP or Profinet Connection
The Profibus or Profinet interface is used for the digital communication of one or more pyrometers with a PLC.
It is available in addition to the serial RS232 or RS485 interface.
The connection is made in accordance with the applicable bus specifications.
The maximum possible transmission speed is limited by the cable length:
▪Profibus: 9.6–93.75kb/s →1200 m up to 3-12Mb/s →100m
▪Profinet: According to Ethernet standard (Cat5 / Cat6 cable) →100 m
For the typical connection in succession, there are
2 connections on each device as input and
output.
General Station Description (GSD): The
device description file, which must be integrated into
the configuration of the master (PLC) can be downloaded from the website https://processsensorsir.com/sup-
port/support-resources.
▪Profibus devices: PSC_HMSA1815.gsd
▪Profinet devices (for mode 0 or mode 1 and 2 each in one folder on the CD): GSDML-V2.32-HMS Industrial
Networks- Anybus CompactCom 40 PIR-0180424.xml
FBAS
signal
Ground
Profibus-DP
(Slave)
Profinet
Input
Output
Input / output

METIS M311 / M322 / H311 / H322 (12-pin device connector)
16 / 81
INFO about the GSD file of old METIS Profibus devices: If old METIS devices are replaced by new
METIS 3 devices, the correct GSD file must also be included.
3 different transmission modes are available to receive the data packets:
▪A fixed M3 standard mode (factory setting),
▪a backward compatible to old METIS devices
▪a variable format in which the data to be transmitted can be selected.
The modes can be selected on the device menu or via SensorTools software. The variable format must be
configured via SensorTools (settings under →7.1.5 Device configuration →Field bus mode, also see 7.5.1).
4.2.1 Pinout Profibus-DP
Profibus terminating resistor: If no
other Profibus device is connected to
the output, the output must be termi-
nated with resistors. The terminating
resistor plug AK81 is used for this pur-
pose (accessory, see 9.3). The internal
wiring is shown on the right.
4.2.1.1 Status LEDs Profibus-DP
4.2.2 Pinout Profinet
4) Profibus cable B (red)
3+1) Not used
5) Shield
2) Profibus cable A (green)
Input Profibus
Output Profibus
4) Profibus cable B (red)
3) GND Bus
5) Shield
2) Profibus cable A (green)
1) +5 V Bus
M12 connector, M12-female
connector,
5-pin
mode Meaning
Off Offline
Green Online,
data exchange
Green flashing Online, clear
Red flashing, 1x Parameterization
error
Red flashing, 2x Configuration error
Module status Meaning
Off Not initialized
Green Initialized
Green flashing Initialized, diagnostic
event(s) present
Red Exception error
Not used
Not used
1) TD+
3) RD+
6) RD-
2) TD-
1
23456
7
8
RJ45 plug
M12 female
connectors,
8-pin
2) TDB-
3) RDB+
4) RDB-
1) TDB+
1) TDA+
2) TDA-
3) RDA+
4) RDA-
+5 V (Pin 1)
A (Pin 2)
B (Pin 4)
GND (Pin 3)
Terminating resistor AK81
(internal wiring)
390
220
0.25 W each
390

METIS M311 / M322 / H311 / H322 (12-pin device connector)
17 / 81
4.2.2.1 Status LEDs Profinet
4.3 Devices with additional Ethernet Connection
The Ethernet interface is used for the digital communication of one or more pyrometers over the network. It is
available in addition to the serial RS232 or RS485 interface. The connection is made in accordance with the
applicable bus specifications.
The maximum possible transmission speed is limited by the cable length:
▪100 m according to Ethernet standard (Cat5 / Cat6 cable).
4.3.1 Pinout Ethernet
4.3.1.1 Status LEDs Ethernet
Module status Description
Off Not Initialized
Green Normal operation
Green flashing, 1x Diagnostic
event(s)
Red Exception error
Red (combined with
red network sta-
tus LED) Fatal
event
Alternating red / green Firmware update
Link / activity for A Description
Off No link
Green Link
Green, flickering Activity
Network status Description
Off Offline
Green Online
(run)
Green flashing, 1x Online
(stop)
Green flashing Blink
Red (combined with red module
status LED) Fatal event
Red flashing, 1x Station name error
Red flashing, 2x IP address error
Red flashing, 3x Configuration error
Link / activity for B Description
Off No link
Green Link
Green, flickering Activity
A
B
1) TX+
3) RX+
6) RX-
2) TX-
M12 4-pin
connector,
female
1) TX+
2) TX-
3) RX+
4) RX-
RJ45 plug
1 2
3
4
5
6
7
8
Operating mode Description
Green DHCP
Green flashing DHCP + active
socket connection
Orange Fixed IP address
Orange flashing Fixed IP address
+ active socket
connection
Red flashing IP error
Transfer rate Description
Off 10 Mbit
Green 100 Mbit
Network status Description
Green flashing Network traffic
Not used

METIS M311 / M322 / H311 / H322 (12-pin device connector)
18 / 81
5 Mechanical Installation
5.1 Mounting
▪The mounting rail on the bottom case is for the stable take-up of for example of a
ball and socket mounting (for fiber optics devices a mounting angle is recom-
mended, see 9.3 Accessories)
▪Front M5 threaded screws can also be used for mounting (all 4 threads has to be
used for fixing).
▪The slightest deviation from the optical axis is achieved with the optics
adapter/holder of motor focus and fixed focus devices.
▪Note that the installation of the pyrometer is free of vibrations, if necessary, helps
the use of rubber absorbers when mounting.
▪To keep the optical fiber ready for use as long as possible, it should be exposed
as little as possible to permanent movement and mechanical stress. Lay the opti-
cal fiber as possible with a large bending radius, especially if it is carried along
moving parts.
During installation of the optical fiber, it is advisable that both plug ends are not
yet connected to the pyrometer and the optics. Tensile and torsional stresses are to be avoided.
INFO Through manufacturing tolerances the optical and mechanical axis are not running 100% in the same
direction. The pyrometer should be realigned if it is installed again and twisted in the same holder (see 5.4
Alignment onto the measuring object).
5.2 Mounting Optical Fiber / Optics (only devices with optical fiber)
5.2.1 Bending Radius of Optical Fiber
The color code on the
optical fiber identifies
the optic diameter and
minimum bending ra-
dius associated.
When laying the optical
fiber, it is to observe the minimum bending radius. A bending radius smaller than specified can cause a
stretched or broken optical fiber.
5.2.2 Winding and Unwinding the Optical Fiber
During winding and unwinding the optical fiber must be able to move easily and
should not be twisted. Ideally, one hand winds up the light guide carefully, while the
other hand guides the cable roll. For torsion-free winding only one side of the optical
fiber should be connected, then the other can be moved freely.
NOTICE Avoid strong tensile and torsional forces during installation, optical
fiber could break.
5.2.3 Mounting the Optical Fiber
Assignment fiber to pyrometer and optics: Each fiber is uniquely associated to a pyrometer and optics. For
identification, all three compo-
nents are tagged with the same
device number. The measure-
ment accuracy can only be guar-
anteed with proper assignment.
Example: Metis with
swivel mounting
base, cooling plate
and air purge
capsblu
e
red
0.4 mm
0.2 mm
Color marking optical fiber
Fiber diameter
Minimum bending radius
150 mm
75 mm

METIS M311 / M322 / H311 / H322 (12-pin device connector)
19 / 81
INFO To meet the high accuracy, the instrument should be recalibrated when replacing an optics or the fiber
optic cable.
NOTICE Only remove the protective
caps from the pyrometer and optics
and fiber directly before assembly to
prevent dirt from getting in and scratching
the fiber connections during assembly.
Keep the protective caps to ensure protec-
tion again in the event of later disassem-
bly or storage.
The optical fiber has to be
mounted true-sided:
▪The colored heat shrink tube
marker matches to the pyrome-
ter side.
▪The optics fit on the side with-
out marking.
▪Unscrew the optical fiber protective tube from the py-
rometer’s housing.
▪Pull the protective tube a little about the optical fiber on
the colored side to avoid pulling it over the complete
fiber after fiber assembly.
▪Remove the protective caps from the pyrometer and optical fi-
ber, insert the side with the turn protected fiber connector to the
pyrometer, and make sure that pin and recess snap together.
▪Tighten lock nut hand-tight (do not use a tool, otherwise the
screw or optical fiber can be damaged).
▪Finally screw the protective tube back on the pyrometer hous-
ing.
5.2.4 Connect the Optics
▪Remove the protective caps from optical fiber and optics
▪The fiber-optic connectors on the side of the optics does not
require special adjustment and is just plugged and screwed
▪Tighten lock nut hand-tight (do not use a tool, otherwise the
screw or optical fiber can be damaged).
Protective caps
Fiber con-
nector
Optics
connector
Fiber connector
Recess
Pin
Lock nut
Opt. fiber
Protective tube
Color mark
Color mark
Connector pyrometer’s side
(turn protected), with knurled nut
Connector optics side, with hex nut

METIS M311 / M322 / H311 / H322 (12-pin device connector)
20 / 81
5.3 Ambient Temperature
▪M311 and M322 pyrometers are designed for ambient temperatures between 0 and 80°C / 32 and 176°F.
▪H3 models for ambient temperatures between 0 and 60°C / 32 and 140°F.
▪Fiber optics and optical fiber of fiber optic devices can be exposed to ambient temperatures between -
20 and 250°C (-4 to 482°F) on the optics side and up to 120°C (248°F) on the housing side. The tempera-
tures for the housing are the same as for the standard devices.
INFO to avoid overheating of the laser targeting light or camera module:
▪The laser targeting light is deactivated at an internal device temperature above 65°C / 149°F (M3 devices) or
above 60°C / 140°F (H3 devices).
▪The camera module is deactivated at an internal device temperature above 55°C / 131°F.
INFO to avoid premature aging of the OLED display:
▪If no key is pressed for 10 minutes, the OLED display is darkened.
▪The OLED display is darkened from an internal device temperature of 60°C / 140°F.
▪The OLED display is switched off from an internal device temperature of 75°C / 167°F.
Below these temperatures, the sighting can be used again or the OLED works with its full brightness.
Operation outside this temperature leads to incorrect measurements and may damage the device.
To comply with the permitted ambient temperature, sufficient distance from the (hot) measuring object is to ob-
serve. With radiant heat from the front, the pyrometer can be protected by a cooling plate, the use of the py-
rometer in ambient temperatures outside the permissible pyrometer ambient temperature is possible with an
additional cooling housing (accessory).
▪The internal device temperature can be read out in the connection area
or in the control window of the SensorTools software.
▪It is possible to configure one of the switching outputs so that a corre-
sponding signal is switched when the maximum temperature is ex-
ceeded (see 4.1.4 Configurable Inputs / Outputs and under 7.1.5 →
Configurable Inputs / Outputs).
5.4 Ratio Technology / Alignment onto the Measuring Object
In opposition to radiation pyrometers, 2-color pyrometer measure in two spectral ranges simultaneously (two
separate detectors at two adjacent narrow-band wavelengths) and determine the temperature by forming the
radiation ratio (quotient).
In this method it is not necessary to know the emissivity of the target material. It cancels out because the radia-
tion ratio remains constant at a neutral attenuation of infrared radiation (by dust, smoke ...).
However, this reduction will only be successful if signal attenuation occurs homogeneously on both wavelength
ranges. If the emissivity change in the two wavelengths e.g. with increasing temperature, also the relationship
changes which results in measurement errors.
Via the Software SensorTools the 2-color temperature and the temperatures of the individual channels can be
shown simultaneously to identify possible wavelength dependence (see 6.2.1 Emissivity slope).
To detect the temperature correctly, the pyrometer must
be properly aligned to the measuring object. In the fo-
cus point of the optics (focus distance) the spot size
diameter is the smallest. Also measurements in the de-
focused area can be done to determine the average
temperature of a bigger spot.
To get a correct measurement result, the following re-
quirements must be observed:
▪For measurements through window, the window ma-
terial has to be observed. If the transmission proper-
ties are not uniform (e.g. quartz glass), the corresponding emissivity slope has to be entered.
▪A viewing window between pyrometer and the measured object must have constant transmission properties
in the spectral range of the pyrometer (e.g. quartz glass or BK7 crown glass).
Focus point
Spot size bigger
DT: internal de-
vice temperature
via software