Fluke Endurance 1RL, Endurance 1RH Operating Instructions Manual

Endurance™ 1R

2-Color Infrared Thermometer

Operating Instructions

Rev. E1 Sep 2015

59511

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Contacts

Fluke Process Instruments

Fluke Process Instruments North America
Santa Cruz, CA USA
Tel: [phone] (USA and Canada, only)
[phone]

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Fluke Process Instruments Europe
Berlin, Germany
Tel: [phone]

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Fluke Process Instruments China
Beijing, China
Tel: [phone]

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Worldwide Service

Fluke Process Instruments offers services, including repair and
calibration. For more information, contact your local office or e-mail
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www.flukeprocessinstruments.com

© Fluke Process Instruments
Specifications subject to change without notice.

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WARRANTY

The manufacturer warrants this instrument to be free from defects in material and workmanship under normal
use and service for the period of four years from date of purchase. This warranty extends only to the original
purchaser. This warranty shall not apply to fuses, batteries, or any product which has been subject to misuse,
neglect, accident, or abnormal conditions of operation.

In the event of failure of a product covered by this warranty, the manufacturer will repair the instrument when it
is returned by the purchaser, freight prepaid, to an authorized Service Facility within the applicable warranty
period, provided manufacturer’s examination discloses to its satisfaction that the product was defective. The
manufacturer may, at its option, replace the product in lieu of repair. With regard to any covered product
returned within the applicable warranty period, repairs or replacement will be made without charge and with
return freight paid by the manufacturer, unless the failure was caused by misuse, neglect, accident, or abnormal
conditions of operation or storage, in which case repairs will be billed at a reasonable cost. In such a case, an
estimate will be submitted before work is started, if requested.

THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS, OR
ADEQUACY FOR ANY PARTICULAR PURPOSE OR USE. THE MANUFACTURER SHALL NOT BE LIABLE
FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT, TORT,
OR OTHERWISE.

SOFTWARE WARRANTY

The manufacturer does not warrant that the software described herein will function properly in every hardware
and software environment. This software may not work in combination with modified or emulated versions of
Windows operating environments, memory-resident software, or on computers with inadequate memory. The
manufacturer warrants that the program disk is free from defects in material and workmanship, assuming
normal use, for a period of one year. Except for this warranty, the manufacturer makes no warranty or
representation, either expressed or implied, with respect to this software or documentation, including its quality,
performance, merchantability, or fitness for a particular purpose. As a result, this software and documentation
are licensed “as is,” and the licensee (i.e., the User) assumes the entire risk as to its quality and performance. The
liability of the manufacturer under this warranty shall be limited to the amount paid by the User. In no event
shall the manufacturer be liable for any costs including but not limited to those incurred as a result of lost profits
or revenue, loss of use of the computer software, loss of data, the cost of substitute software, claims by third
parties, or for other similar costs. The manufacturer’s software and documentation are copyrighted with all rights
reserved. It is illegal to make copies for another person.

Specifications subject to change without notice.

The device complies with the requirements of the European Directives.

EC – Directive 2004/108/EC (EMC)

Electromagnetic Compatibility Applies to use in Korea only. Class A Equipment
(Industrial Broadcasting & Communication Equipment)

This product meets requirements for industrial (Class A) electromagnetic wave equipment and the
seller or user should take notice of it. This equipment is intended for use in business environments
and is not to be used in homes.

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TABLE OF CONTENTS

1 SAFETY INSTRUCTIONS ............................................................................................................................. 7

2 PRODUCT DESCRIPTION ............................................................................................................................ 9

2.1 THEORY OF OPERATION FOR 2-COLOR SENSORS ...................................................................................... 10

2.1.1 Partially Obscured Targets ................................................................................................................. 10

2.1.2 Targets Smaller Than Field of View ................................................................................................... 10

2.1.3 Emissivity and 1-color (single wavelength) measurements ................................................................ 11

2.1.4 Slope (2-color ratio) measurements .................................................................................................... 11

3 TECHNICAL DATA ...................................................................................................................................... 12

3.1 MEASUREMENT SPECIFICATIONS ............................................................................................................... 12

3.2 GENERAL SPECIFICATIONS ......................................................................................................................... 13

3.3 ELECTRICAL SPECIFICATIONS .................................................................................................................... 14

3.4 DIMENSIONS ............................................................................................................................................... 15

3.5 OPTICAL SPECIFICATIONS .......................................................................................................................... 16

3.6 SCOPE OF DELIVERY ................................................................................................................................... 17

4 ENVIRONMENT............................................................................................................................................ 18

4.1 AMBIENT TEMPERATURE ........................................................................................................................... 18

4.2 ATMOSPHERIC QUALITY ............................................................................................................................ 18

4.3 ELECTRICAL INTERFERENCE ...................................................................................................................... 18

5 INSTALLATION ............................................................................................................................................ 19

5.1 MECHANICAL INSTALLATION ................................................................................................................... 19

5.1.1 Distance to Object .............................................................................................................................. 19

5.1.2 Sensor Placement (1-Color Mode) ...................................................................................................... 19

5.1.3 Sensor Placement (2-Color Mode) ...................................................................................................... 20

5.1.4 Viewing Angles................................................................................................................................... 21

5.1.5 Aiming and Focusing ......................................................................................................................... 22

5.2 ELECTRICAL INSTALLATION ...................................................................................................................... 23

5.2.1 M16 12-Pin DIN Connector .............................................................................................................. 23

5.2.2 M12 4-Socket LAN/Ethernet Connector ............................................................................................ 24

5.2.3 Accessory Cables and Terminal Block ................................................................................................ 25

5.2.4 Power Supply ...................................................................................................................................... 27

5.2.5 Computer Interfacing via RS485 link ................................................................................................. 27

5.2.6 Addressing the Endurance sensor in a RS485 Multidrop Network ................................................... 28

6 OPERATION ................................................................................................................................................... 29

6.1 CONTROL PANEL ....................................................................................................................................... 29

6.1.1 The Temperature Display (green 7-segment LED type) ..................................................................... 30

6.1.2 The Screen / Menu Display ................................................................................................................ 30

6.1.3 The Pointing Device Indicator LED (red) .......................................................................................... 30

6.1.4 The Status Indicator LED (green) ...................................................................................................... 30

6.1.5 The four control elements (pushbuttons) of the control panel ............................................................ 31

6.2 THE SELECTABLE SUBMENUS AND ASSOCIATED ENTRIES .......................................................................... 32

6.2.1 The INFORMATION MENU ........................................................................................................... 32

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6.2.2 The CONFIGURATION MENU ....................................................................................................... 32

6.2.3 The UNIT SETUP MENU ................................................................................................................. 33

6.2.4 The INTERFACE MENU .................................................................................................................. 33

6.2.5 The ANALOG MENU ....................................................................................................................... 33

6.3 TOTAL CONTROL PANEL (USER INTERFACE) STRUCTURE ........................................................................ 34

7 SIGNAL POST PROCESSING DETAILS .................................................................................................. 35

7.1 AVERAGING ................................................................................................................................................ 35

7.2 PEAK HOLD................................................................................................................................................. 35

7.3 VALLEY HOLD ............................................................................................................................................ 36

7.4 SETPOINT ..................................................................................................................................................... 37

7.5 DEADBAND ................................................................................................................................................. 37

7.6 OUTPUTS ..................................................................................................................................................... 38

7.6.1 Analog Output (current loop) ............................................................................................................. 38

7.6.2 Relay Outputs ..................................................................................................................................... 38

7.6.3 Trigger ................................................................................................................................................. 38

7.7 FACTORY DEFAULTS ................................................................................................................................... 39

8 OPTIONS ......................................................................................................................................................... 40

8.1 LASER SIGHTING ......................................................................................................................................... 40

8.2 LED SIGHTING ............................................................................................................................................ 41

8.3 VIDEO SIGHTING ......................................................................................................................................... 41

8.4 AIR/WATER COOLED HOUSING ................................................................................................................. 41

8.4.1 Avoidance of Condensation ................................................................................................................. 43

9 ACCESSORIES ................................................................................................................................................ 44

9.1 OVERVIEW ................................................................................................................................................... 44

9.2 FIXED MOUNTING BRACKET ...................................................................................................................... 45

9.3 AIR PURGE COLLAR .................................................................................................................................... 45

9.4 POLARIZING FILTER END CAP .................................................................................................................... 46

9.5 CABLES ........................................................................................................................................................ 47

9.6 INDUSTRIAL POWER SUPPLY ...................................................................................................................... 48

10 PROGRAMMING GUIDE .......................................................................................................................... 49

10.1 REMOTE VERSUS MANUAL CONSIDERATIONS ......................................................................................... 49

10.2 COMMAND STRUCTURE ............................................................................................................................ 49

10.3 TRANSFER MODES .................................................................................................................................... 50

10.3.1 Poll Mode .......................................................................................................................................... 50

10.3.2 Burst Mode ........................................................................................................................................ 50

10.4 COMMAND LIST ........................................................................................................................................ 51

10.5 COMMAND EXAMPLES ............................................................................................................................. 53

11 MAINTENANCE .......................................................................................................................................... 55

11.1 TROUBLESHOOTING MINOR PROBLEMS ................................................................................................... 55

11.2 FAIL-SAFE OPERATION ............................................................................................................................. 55

11.2.1 Fail-Safe Error Codes (displayed or transmitted via electrical interface) .......................................... 55

11.2.2 Analog Output (Current) values in dependence of Fail-Safe Error Codes ....................................... 56

11.3 CLEANING THE LENS ................................................................................................................................ 58

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11.4 CHANGING THE WINDOW ....................................................................................................................... 58

12 APPENDIX..................................................................................................................................................... 59

12.1 DETERMINATION OF SLOPE (FOR 2 – COLOR OPERATION) ...................................................................... 59

12.2 PERCENTAGE OF ALLOWED SIGNAL REDUCTION ..................................................................................... 59

12.3 DETERMINATION OF EMISSIVITY (FOR 1-COLOR OPERATION) ................................................................ 61

12.4 TYPICAL EMISSIVITY VALUES ................................................................................................................... 61

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Safety Instructions

1 Safety Instructions

This document contains important information, which should be kept at all times with the instrument during its
operational life. Other users of this instrument should be given these instructions with the instrument. Eventual
updates to this information must be added to the original document. The instrument can only be operated by
trained personnel in accordance with these instructions and local safety regulations.

Acceptable Operation

This instrument is intended only for the measurement of temperature. The instrument is appropriate for
continuous use. The instrument operates reliably in demanding conditions, such as in high environmental
temperatures, as long as the documented technical specifications for all instrument components are adhered to.
Compliance with the operating instructions is necessary to ensure the expected results.

Unacceptable Operation

The instrument should not be used for medical diagnosis.

Replacement Parts and Accessories

Use only original parts and accessories approved by the manufacturer. The use of other products can compromise
the operation safety and functionality of the instrument.

Instrument Disposal

Disposal of old instruments should be handled

according to professional and environmental

regulations as electronic waste.

Operating Instructions

The following symbols are used to highlight essential safety information in the operation instructions:

Helpful information regarding the optimal use of the instrument.

Warnings concerning operation to avoid instrument damage and personal injury.

The instrument can be equipped with a Class 2 laser. Class

2 lasers shine only within the visible

spectrum at an intensity of 1 mW. Looking directly into

the laser beam can produce a slight,
temporary blinding effect, but does not result in physical injury or damage to the eyes, even when the
beam is magnified by optical aids. At any rate, closing the eye lids is encouraged when eye contact is

made with the laser beam. Pay attention to possible reflections of the laser beam. The laser functions
only to locate and mark surface measurement targets. Do not aim the laser at people or animals.

Pay particular attention to the following safety instructions.

Use in 110/230 V~ electrical systems can result in electrical hazards and personal injury, if not properly

protected. All instrument parts supplied by electricity must be covered to prevent physical contact and

other hazards at all times.

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Safety Instructions

General Symbols

AC (Alternating Current)

DC (Direct Current)

Risk of danger. Important information. See manual.

Hazardous voltage. Risk of electrical shock.

Helpful information regarding the optimal use of the instrument.

Earth ground

Protective ground

Fuse

Normally-open (NO) relay

Normally-closed (NC) relay

Switch or relay contact

DC power supply

Conforms to European Union directive.

Disposal of old instruments should be handled according to professional and
environmental regulations as electronic waste.

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Product Description

2 Product Description

The Endurance 1R Series of instruments are 2-color infrared noncontact temperature measurement
systems with variable focus, through-the-lens sighting, and parallax-free optics. They are energy
transducers designed to measure accurately and repeatedly the amount of heat energy emitted from
an object, and then convert that energy into a measurable electrical signal. Temperature measurements
can be taken using either of the following modes:

• 1-color mode – for standard temperature measurements. The 1-color mode is best for

measuring the temperature of targets in areas where no sighting obstructions, either solid or
gaseous, exist. The 1-color mode is also best where the target completely fills the measurement
spot.

• 2-color mode – temperatures are determined from the ratio of two separate and overlapping

infrared bands. The 2-color mode is best for measuring the temperature 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 2­color mode can also be used on targets that do not completely fill the measurement spot,
provided the background is much cooler than the target.

Each model operates as an integrated temperature measurement subsystem consisting of optical
elements, spectral filters, detector, digital electronics and an IP65 (NEMA-4) rated housing. Each is
built to operate on a 100 percent duty cycle in industrial environments. Various output types are
offered for easy integration into industrial monitoring and control environments.

Model

Temperature Range

2C 95% Attenuation
Minimum Temperature

Optical Resolution
(Nominal)

1RL

1RH

550 to 1800 °C (1022 to 3272°F) in 1C mode

600 to 1800 °C (1112 to 3272°F) in 2C mode

1000 to 3200°C (1832 to 5792°F)

800°C (1472°F)

1300°C (2372°F)

100:1

150:1

Focal Range F1 = Close Focus 300 mm to 600 mm (12" to 24")

F2 = Standard Focus 600 mm to ∞ (24" to ∞)

Table 1: Models

For the percentage of allowed signal reduction at temperatures below the minimum
temperature (95% attenuation) as shown above, refer to the 12 Appendix, page 59.

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Product Description

2.1 Theory of Operation for 2-Color Sensors

Two-color ratio technology makes possible accurate and repeatable temperature measurements that
are free from dependence on absolute radiated energy values. In use, a 2-color sensor determines
temperature from the ratio of the radiated energies in two separate wavelength bands (colors).

The benefits of 2-color sensors are that accurate measurements can be made under the following
conditions:

• When the field of view to the target is partially blocked or obscured.

• When the target is smaller than the sensor’s field of view.

• When the target emissivity is low or changing by the same factor in both wavelength bands.

Another benefit is that 2-color sensors measure closer to the highest temperature within the measured
spot (spatial peak picking) instead of an average temperature. A 2-color sensor can be mounted farther
away, even if the target does not fill the resulting spot size. The convenience is that you are not forced
to install the sensor at some specific distance based upon target size and the sensor’s optical
resolution.

2.1.1 Partially Obscured Targets

The radiated energy from a target is, in most cases, equally reduced when objects or atmospheric
materials block some portion of the optical field of view. It follows that the ratio of the energies is
unaffected, and thus the measured temperatures remain accurate. A 2-color sensor is better than a
1-color sensor in the following conditions:

• Sighting paths are partially blocked (either intermittently or permanently).

• Dirt, smoke, or steam is in the atmosphere between the sensor and target.

• Measurements are made through items or areas that reduce emitted energy, such as grills,

screens, small openings, or channels.

• Measurements are made through a viewing window that has unpredictable and changing

infrared transmission due to accumulating dirt and/or moisture on the window surface.

• The sensor itself is subject to dirt and/or moisture accumulating on the lens surface.

1-

color sensors see polluted atmosphere and dirty windows and lenses as a reduction in

energy and give much lower than actual temperature readings!

2.1.2 Targets Smaller Than Field of View

When a target is not large enough to fill the field of view, or if the target is moving within the field of
view, radiated energies are equally reduced, but the ratio of the energies is unaffected and measured
temperatures remain accurate. This remains true as long as the background temperature is much
lower than the target’s. The following examples show where 2-color sensors can be used when targets
are smaller than the field of view:

• Measuring wire or rod — often too narrow for field of view or moving or vibrating

unpredictably. It is much easier to obtain accurate results because sighting is less critical with
two-color sensors.

• Measuring molten glass streams — often narrow and difficult to sight consistently with

single-wavelength sensors.

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Product Description

2.1.3 Emissivity and 1-color (single wavelength) measurements

Emissivity is a calculated ratio of infrared energy emitted by an object to the energy emitted by a
blackbody at the same temperature (a perfect radiator has an emissivity of 1.00). The emissivity is
preset at 1.00. For information on determining an unknown emissivity, and for sample emissivities,
refer to the appendix of this manual.

When target emissivity is uncertain or changing, a 2-color sensor can be more accurate than a 1-color
instrument as long as the emissivity changes by the same factor in both wavelength bands. Accurate
measurement results are dependent on the application and the type of material being measured. The
emissivity of all real objects changes with wavelength and temperature, at varying degrees, depending
on the material. To determine how to use 2-color sensors with your application when uncertain or
changing emissivities are a factor, please contact our sales representative or technical support
department.

2.1.4 Slope (2-color ratio) measurements

The slope is the quotient of the emissivities based on the narrow and the wide spectral range (first and
second wavelength). The slope is preset at the factory at 1.000.

For information on determining an unknown slope, and for sample slopes, refer to the appendix of
this manual.

The slope is the deciding parameter for measurements in 2-

color mode! The emissivity

affects only measurements in 1-color mode.

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Technical Data

3 Technical Data

3.1 Measurement Specifications

Temperature Range

1RL 550 to 1800 °C (1022 to 3272°F) in 1C mode
600 to 1800 °C (1112 to 3272°F) in 2C mode

1RH 1000 to 3200°C (1832 to 5792°F))*
*(Indication only from 3000 to 3200°C (5432 to 5792°F)

Spectral Band Measured

1-color band 0.75 to 1.1 μm (1.0 μm nominal)
2-color bands 0.75 to 1.1 μm, 0.95 to 1.1 μm

System Accuracy ± (0.5% T

meas + 2°C), Tmeas in °C *

*At 23°C ±5°C (73°F ±9°F), emissivity/slope = 1.0, no
attenuation

Repeatability ±0.3% full scale

Temperature Resolution - Display and Outputs

1RL and 1RH 0.1°C (0.2°F)

Response Time (95% Response) 10 ms for signal to reach 95% of final temperature

Temperature Coefficient 0.03% full scale change per 1°C change in ambient temperature

Emissivity (1-color) 0.10 to 1.10, digitally adjustable in increments of 0.01

Slope (2-color) 0.850 to 1.150, digitally adjustable in increments of 0.001

Signal Processing Peak hold or Averaging

Noise Equivalent Temperature 1°C peak to peak, target emissivity of 1.00,
(NET) unobscured target
3°C peak to peak, for all specified attenuation conditions

Peak Hold Range 0.1 to 299.9 s (300 s = ∞)

Averaging Range 0.1 to 299.9 s (300 s = ∞)

Warm Up Period 15 minutes

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Technical Data

3.2 General Specifications

Control Panel (User Interface) Upper Display: Green 7-segment, 4 digits LED type for

displaying the measured object temperature and error codes

Lower Display: Green/Red background illuminated graphics

display type. Resolution is 32 * 136 pixels to display 2 text lines
of about 16 characters per line. It is the main screen/menu
display, which shows all information and configuration topics.

2 individual (red/green) LED’s to indicate the instrument status

and Laser/LED/Video on/off.

4 individual control pushbuttons, to walk through the menu

structure and to enter setup values

Environmental Rating IP65 (NEMA-4)
Ambient Temperature

Without cooling 0 to 65°C (32°F to 149°F)
With air cooling 0 to 120°C (32°F to 250°F)
With water cooling 0 to 175°C (32°F to 350°F)
With ThermoJacket 0 to 315°C (32°F to 600°F)

Storage Temperature

Electronics Housing -20 to 70°C (-4°F to 158°F)

Relative Humidity 10 to 95%, non-condensing at 22°C to 43°C (72°F to 110°F)

EMC EN 61326-1:2006

Safety EN 60825-1:2008-05

FDA laser safety compliant

Mechanical Shock MIL-STD-810G (IEC 68-2-27), 5 G, 11 msec duration, 3 axis

Vibration MIL-STD-810G (IEC 68-2-6), 2 G, 10 to 150 Hz 3 axis

Warm up Period 15 minutes

Weight (incl. nut & mnt. bracket)

Endurance sensor 1551g (3.42 lbs)
With air/water-cooled housing 2688g (5.93 lbs)

Housing Material

Stainless steel Mat.-No.: 1.4305, Mat.-Name.: X8CrNiS18-9

Fail-Safe Full or low scale, depending upon system failure. See section

11.2 Fail-Safe Operation, page 55.

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Technical Data

3.3 Electrical Specifications

Power Supply 24 VDC nominal, 20 to 48 VDC allowed, max. 12W

Electrical Interfaces all interfaces and I/O’s are galvanically isolated

Outputs

Analog (+mA Out, -mA Out) 0 - 20 mA, 4 - 20 mA, active output, 16 bit resolution

max current loop impedance: 500 Ω

Digital RS485 (A, B) Network compatible up to 32 sensors (2-wire half duplex)

Data format: 8 bit, no parity, 1 stop bit
Data rate: 1200, 2400, 9600, 19200, 38400 (default),
57600, 115200 Bit/s

2-wire half duplex, multidrop line capability

Alarm Output Relay Potential-free contact of a solid state relay, max. 48 V, 300 mA
(Relay, Relay) Contact behavior is settable via user interface between
(NO = Normally Open, NC = Normally Close,
PO = Permanently Open, PC = Permanently Close)

Figure 1: Spike Voltage Limitation for the Alarm Relay

Input

External Trigger/Hold Digital low/high, trigger for resetting AVERAGE, PEAK HOLD

or VALLEY HOLD to restart signal processing

Figure 2: External Trigger/Hold Wiring

Network 4-Wire 10/100 Mbit LAN/Ethernet with “Power over Ethernet”

capability to power the Endurance device via the interface.

Please refer for the correct wiring to PoE standard IEEE 802.3af,

mode A, 10/100 Mbit mixed DC & data.

Relay

≤ 48 V

Relay

Endurance sensor

Ext. relay in process environment

Endurance sensor

Ext. trigger in process environment

GND

Trigger

Ground

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Technical Data

3.4 Dimensions

The following illustrations show dimensions of a standard sensor, see Figure 3, a sensor with the
air/water-cooled housing option, see Figure 4, and the adjustable bracket, see Figure 5.

Figure 3: Dimensions of Endurance Head

Figure 4: Endurance Head with Air/Water-Cooled Housing Option

Figure 5: Adjustable Bracket

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Technical Data

3.5 Optical Specifications

Optical Resolution D:S (assumes 95% energy at the focus point)

EN1RL 100:1

EN1RH 150:1

Because the sensor has variable focus, through-the-lens sighting, and parallax-free optics, it can be
mounted almost anywhere. Adjustable focus distance range varies by model:

• F1 (Close Focus) models can be focused from 300 mm to 600 mm (12 to 24”)

• F2 (Standard Variable Focus) models can be focused from 600 mm to infinity (24” to infinity)

For 1-color temperature measurements make sure the target completely fills the measurement spot.
The spot size for any distance, when the unit is properly focused at that distance, can be determined
using the following formula and Figure 6.

Divide the distance (D, in Figure 6) by the D:S specification. For example, if the D:S specification is
150:1, and the sensor is 2000 millimeters (80 inches) from the target, divide 2000 by 150 (80 by 150),
resulting in a target spot size of which gives you a target spot size of 13.3 mm (0.5 in).

Figure 6: Spot Size Chart

The spot size calculated using this method is valid only at the focus distance. Spot

sizes out of focus distances will vary from the rule.

D = Distance
S = Spot size

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Technical Data

3.6 Scope of Delivery

The ENDURANCE delivery includes the following:

• Endurance 1R 2-Color Infrared Thermometer

• Fixed mounting bracket (E-FB) with mounting nut

• End cap for display

• Mini-DVD with Endurance SW, Operating Instructions and Quickstart guide

• Printed Quickstart guide

Accessories, which have to be ordered separately!

• Both Endurance communication and supply interface cables, a 12-wire a M16

12-socket DIN connector and a 4-

wire LAN/Ethernet cable, selected for the

needed temperature range

• The Endurance series terminal block with specific signal/wire assignment

•

PoE (Power over Ethernet) injector to supply the Endurance device via the
LAN/Ethernet cable

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Environment

4 Environment

Sensor location and configuration depends on the application. Before deciding on a location, you need
to be aware of the ambient temperature of the location, the atmospheric quality of the location
(especially for 1-color temperature measurements), and the possible electromagnetic interference in
that location. If you plan to use air purging, you need to have an air connection available. Also, wiring
and conduit runs must be considered, including computer wiring and connections, if used. The
following subsections cover topics to consider before you install the sensor.

4.1 Ambient Temperature

The sensing head is designed to operate in ambient temperatures between 0°C (32°F) and 65°C
(149°F). The internal ambient temperature can vary from 10°C (50°F) to 72°C (162°F). Internal
temperatures outside this range will cause a failsafe error. In ambient conditions above 65°C (149°F),
an optional air/water cooled housing is available to extend the operating range to 120°C (250°F) with
air cooling, or 175°C (350°F) with water cooling. When using the water cooled housing, it is strongly
recommended to also use the air purge collar to avoid condensation on the lens. In ambient conditions
up to 315°C (600°F), the ThermoJacket accessory should be used.

When using air or water cooling with air purging, make sure air and water supplies are installed
before proceeding with the sensor installation.

Water and air temperatures for cooling should be 15-30°C (60-86°F) for best performance. Chilled
water or air below 10°C (50°F) is not recommended. For air purging or air cooling, clean (filtered) or
“instrument” air is recommended.

4.2 Atmospheric Quality

Smoke, fumes, dust, and other contaminants in the air, as well as a dirty lens are generally not a
problem when using the 2-color mode (as long as the attenuation is equal in both spectral bands).
However, if the lens gets too dirty, it cannot detect enough infrared energy to measure accurately, and
the instrument will indicate a failure. It is good practice to always keep the lens clean. The Air Purge
Collar helps keep contaminants from building up on the lens.

If you use air purging, make sure an air supply with the correct air pressure is installed before
proceeding with the sensor installation.

4.3 Electrical Interference

To minimize electrical or electromagnetic interference or “noise” be aware of the following:

• Mount the electronics enclosure as far away as possible from potential sources of electrical

interference such as motorized equipment producing large step load changes.

• Use shielded wire for all input and output connections.

• Make sure the shield wire from the electronics to terminal block cable is earth grounded.

• For additional protection, use conduit for the external connections. Solid conduit is better than

flexible conduit in high noise environments.

• Do not run AC power for other equipment in the same conduit.

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Installation

5 Installation

5.1 Mechanical Installation

After all preparations are complete, you can install the sensor.
How you anchor the sensor depends on the type of surface and the type of bracket you are using. As
noted before, all sensors, whether standard or with the air/water-cooled housing option, are supplied
with an adjustable bracket and mounting nut. You can also mount the sensor through a hole, on a
bracket of your own design, or on one of the other available mounting accessories, see section
9 Accessories, page 44. If you are installing the sensor in a ThermoJacket accessory, you should use the
appropriate mounting device. (Refer to the ThermoJacket manual for further details.) If you do not
have the focusing tool accessory, the sensor must be focused before mounting inside a ThermoJacket
or before attaching an air purge collar.

5.1.1 Distance to Object

Sensor placement can be varied to suit the application. The following sections show sensor placement
and the various conditions where 2-color temperature measurements can be taken.

When installing the sensor, check for any high-intensity discharge lamps or heaters that
may be in the field of view (either background or reflected on a shiny target)! Reflected
heat sources can cause a sensor to give erroneous readings.

5.1.2 Sensor Placement (1-Color Mode)

Sensor placement for one-color temperature measurements is more critical than two-color
measurements. The sensor must have a clear view of the target. There can be no obstructions on the
lens, window, or in the atmosphere. The distance from the target can be anywhere beyond the
minimum requirements, as long as the target completely fills the field of view. The following figure
illustrates proper placement when using the one-color mode.

Figure 7: Proper Sensor Placement in 1-Color Mode

Target greater than spot size

Target equal to spot size

Target smaller than spot size

best

good

incorrect

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5.1.3 Sensor Placement (2-Color Mode)

The following figure shows head placement under various conditions where two-color temperature
measurements can be taken. Note, however, that if the sensor signal is reduced more than 95%
(including emissivity and obscuration of the target), the sensor accuracy also degrades.

Figure 8: Sensor Placement in 2-Color Mode

Emitted

energy

Emitted

energy

Sighting hole smaller than the

sensor’s field of view

Emitted

energy

Target smaller than field of view
and/or moves or vibrates in and
out of field of view (e.g. wire)

Emitted

energy

Smoke, steam, dust,

gas in atmosphere

Dirty lens or dirty sighting window

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5.1.4 Viewing Angles

The sensor can be placed at any angle from the target up to 30° for one-color mode, or 45° for two­color mode.

Figure 9: Acceptable Sensor Viewing Angles

Minimum Distanc e
SF: 600 mm (24 in)
CF: 300 mm (12 in)

Best

90° to

target

Acceptable

Viewing Angles

Bad

1-

Color Mode: greater than 30° to target

2-

Color Mode: greater than 45° to target

Good

1-

Color Mode: 30° to target

2-Color Mode:

45° to target

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5.1.5 Aiming and Focusing

Once you have the sensor in place, you need to aim and focus it on the target. To aim and focus the
sensor, complete the following:

1. Loosen the nuts or bolts of the mounting base. (This can be either a factory-supplied accessory

or customer-supplied base.)

2. Look through the eyepiece and position the sensor so the target is centered as much as possible

in the middle of the reticle, see Figure 10. (Note that the target appears upside down.)

3. Turn the lens holder clockwise or counter-clockwise until the target is in focus. You can tell the

lens is focused correctly by moving your eye from side to side while looking through the
eyepiece. The target should not move with respect to the reticle. If it does, keep adjusting the
focus until no apparent motion is observed.

4. Check again to be sure the target is still centered, and secure the mounting base. Focusing is

complete.

Figure 10: Sensor Eyepiece and Reticle

When focusing the sensor, do not depend on the clarity of the image through the

eyepiece to determine the focus. Use the “move the eye” techniqu

e described in step 3

above.

If the desired focus distance is known in advance, this focusing can be

conveniently done in the office environment before installation.

Target

Sighting Scope

Reticle

Area to measure

(Inside reticle)

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5.2 Electrical Installation

The Endurance 1R infrared thermometer is equipped with two IP67 protected connector sockets. The
M16 12-pin DIN connector houses a RS485 interface, trigger input, relay contact, current output and
24V power supply wires. The M12 4-socket connector houses a 100Mbit/s LAN/Ethernet link with
integrated Power over Ethernet (PoE).
Endurance 1R is able to communicate via both integrated interfaces (LAN/Ethernet, RS485).
It is possible to use the interfaces simultaneously!

5.2.1 M16 12-Pin DIN Connector

If you need to wire a new M16 12-socket DIN connector or rewire a supplied accessory cable
connector, refer to the following illustration and table for the wiring layout.

Figure 11: M16 12-Pin at the Endurance 1R (left) and the corresponding cable socket (right)

Figure 12: M16 DIN Connector signal assignment

Pin

Color

Description

A

Black* A B

White*

B C Grey*

Not Connected

D

Purple*

Not Connected

E

White/Drain

Shield

F

Yellow

Trigger

G

Orange

Relay

H

Blue

Relay

J

Green

+ mA Out

K

Brown

– mA Out

L

Black

Power Ground

M

Red

+ 24 VDC

Note: Twiste d Pairs* A/B and C/D

A

B

C

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5.2.2 M12 4-Socket LAN/Ethernet Connector

The LAN/Ethernet connector on Endurance 1R side is a M12 4-socket connector type, D-coded, suited
for industrial Ethernet with IP67 protection rate and a screw retention feature. Via the LAN/Ethernet
connector the Endurance 1R device can also be powered as a PD (Powered Device) by a PSE (Power
Sourcing Equipment) in a PoE (Power over Ethernet) mode. In such operation mode a PoE injector or
a PoE switch is needed. Refer to PoE standard IEEE 802.3af, mode A, 10/100 Mbit mixed DC & data.

Figure 13: M12 Socket at the Endurance 1R (left) and the corresponding cable plug (right)

Figure 14: Ethernet Cable with M12 Plug and RJ45 Connector

Signal

Pin RJ45

Pin M12-4

TD+ 1 1

TD- 2 3

RD+ 3 2

RD- 6 4

RJ45

PoE Injector/Switch

M12-4

Endurance Device

6

2

3 4 3

2

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5.2.3 Accessory Cables and Terminal Block

As accessories for the Endurance 1R devices there are two different communication cables and a
specific terminal block available. Both sensor cables can be ordered in several cable lengths and two
different ambient temperature ratings.

The sensor head is rated NEMA-4 (IEC 529, IP65).
Endcap must be securely installed to maintain proper sealing.

To prevent possible electrical shock, fire,

or personal injury make sure that the

sensor is grounded before use.

5.2.3.1 M16 12-Conductor shielded cable

The 12-conductor shielded connecting cable is used to wire all the fundamental inputs and outputs
like RS485 interface, trigger input, relay contact, current input, current output and 24V power supply
wires to the Endurance 1R sensor. The cable is equipped with an IP67 rated M16 12-socket DIN
connector at one end and colored wires with cable end sleeves at the counter side.

See below the colored wire to signal assignments, which are identical to the specific terminal block
labeling. For more cable details, see section 9.5 of this manual

Figure 15: M16 12-Conductor shielded cable with colored wire/signal assignments

If you cut the cable to shorten it, notice that both sets of twisted-pair wires have drain

wires inside their insulation. These drain wires (and the white wire that

is not part of

the twisted pair) must be connected to the terminal labeled CLEAR or SHIELD.

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•

Longer cables are available from the factory.

•

Limit power cables to 60 m (200 ft) or less. RS485 cables can be extended up to

1200 m (4000 ft).

• Avoid

installing the sensor cable in noisy electrical environments such as

around electrical motors, switch gear, or induction heaters.

5.2.3.2 M12 4-Conductor shielded cable

The 4-conductor shielded connecting cable is used to link the Endurance 1R device to a LAN/Ethernet
device. A standardized cable, equipped with a M12 4-pin connector type, D-coded, suited for
industrial Ethernet with IP67 protection rate and a screw retention feature on one side and a RJ45
connector type on the counter side is used. Via the 4-conductor cable the Endurance 1R device can also
be powered as a PD (Powered Device) by a PSE (Power Sourcing Equipment) in a PoE (Power over
Ethernet) mode. Refer to PoE standard IEEE 802.3af, mode A, 10/100 Mbit mixed DC & data.

Figure 16: M12 4-Conductor shielded cable with RJ45 on counter side

5.2.3.3 Endurance 1R specific terminal block

To connect the Endurance 1R device via the 12-conductor shielded cable to the industrial process
world, an Endurance 1R specific terminal block is available. Attach the color coded sensor cable wires
to the color coded side of the terminal block.

Figure 17: Endurance 1R labeled terminal block

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5.2.4 Power Supply

Connections from a nominal 24VDC (500 mA or higher) power supply attach to the appropriate
terminals on the electronic enclosure’s terminal strip.

Isolated power is required, and this is provided by the appropriate manufacturer
supplied power supply accessory. Beware of use of other power supplies which may
not provide the necessary isolation and could cause instrument malfunction or damage!

5.2.5 Computer Interfacing via RS485 link

The distance between the sensor and a computer can be up to 1200 m (4000 ft.) via RS485 interface.
This allows ample distance from the harsh environment where the sensing system is mounted to a
control room or pulpit where the computer is located. The USB/RS485 Interface Converter allows you
to connect your Endurance 1R sensor to computers by using an USB interface.

With auto configuration the converter is able to automatically configure RS485 signals without
external switch setting. The converter is equipped with 3000 VDC of isolation and internal surge­protection to protect the host computer and the converter against high voltage spikes, as well as
ground potential difference. When the converter is connected the computer gets one virtual COM
port.

Technical Data

Power supply 5 VDC direct from USB port

Speed max. 256 kBit/s

RS485 4 wire (full duplex) and 2 wire (half duplex)

Terminal screwed accepts 0.05 to 3 mm² (AWG 13 to AWG 30)

USB connector type B (supplied with type A to type B cable)

Ambient Temperature 0 to 60°C (32 to 140°F), 10-90% relative humidity, non-condensing

Storage Temperature -20 to 70°C (-4 to 158°F), 10-90% relative humidity, non-condensing

Dimensions (L x W x H) 151 x 75 x 26 mm (5.9 x 2.9 x 1 in)

Just the 2-wire (half duplex) communication is supported on the Endurance 1R side. The disadvantage
is that the data transfer is just alternating possible in one direction at a time. The maximum
communication baud rate between the Endurance 1R device and the USB/RS485 converter is 115.200
kBaud. A Baud rate of 38.4 kBaud is the default (preset) value in the Endurance 1R device during
factory setup.

The factory fix setting for the Endurance 1R is the 2-wire Mode!

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Figure 18: USB/RS485 Converter

Multiple Endurance sensors in a RS485 Multidrop Network

Wiring

For an installation of two or more Endurance sensors in a RS485 network (2-wire, half duplex), each
Endurance sensor needs it’s specific RS485 network address (1 - 32), preset via the Endurance control
panel (user interface) or alternatively via a standard terminal program (operating system dependent).
Once all the units are addressed, wire up the units in the 2-wire multidrop manner, keeping all A & B
signals to be common and connect these to the both signal lines of the selected USB/RS485 converter.

5.2.6 Addressing the Endurance sensor in a RS485 Multidrop Network

If you are installing two or more sensors in a multi-drop configuration, please be aware of the
following:

• Each sensor must have a unique address greater zero (1 - 32).

• Each sensor must be set to the same baud rate (default is 38.4 kBaud).

• Once all the units are addressed, wire up the units in the 2-wire multidrop manner, keeping all

A & B to be common.

• Now you can run own written communication software to access the Endurance sensor or use

an individual terminal program to issue commands and receive the response from the sensor.

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6 Operation

Once you have your sensor(s) positioned and connected properly, the system is ready for continuous
operation. Operation is accomplished either through the back panel or through controlling software
via the RS485 or LAN/Ethernet interface. An Endurance software, a MS-Windows based setup and
configuration program is supplied with your sensor. You can also create custom programs using the
communication protocols listed in section 10 Programming Guide.

6.1 Control Panel

The Endurance sensor is equipped with a control panel, which is the manually operated user interface
and consists of two display types, one alarm and one status LED and several setting/controlling
buttons, as shown in Figure 19. The panel is used primarily for setting up the instrument and is
protectively covered over during normal use by the supplied end cap. You can configure sensor
settings with the control panel or remotely with a computer.

The sensor has a remote locking feature that keeps the unit from being accidentally changed from the
control panel (locked by default in multidrop mode). This lockout mode denies access to the submenu
functions of the control panel. Via the RS485, the LAN/Ethernet connection or a specific key command
on the control panel, the Endurance device can be unlocked.

Figure 19: Control Panel

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6.1.1 The Temperature Display (green 7-segment LED type)

The temperature display always shows the current value of the measured target temperature,
including the result of any signal processing (such as Averaging, Peak Hold, Valley Hold). Units of
measure are set in the screen display – Configuration mode – described later in this section.

The Temperature Display has to fulfill two tasks to inform the operator:

• In normal operation after warm up phase, it displays the current measured object

temperature, including any signal processing like “Averaging Hold”, “Peak Hold” or “Valley
Hold”. The displayed temperature depends on the preset measurement unit (°C or °F), done
in the “CONFIGURATION MENU” and described hereafter.

• In abnormal operation, during warm up phase or in failure case, discovered through the

failsafe-circuit, it displays an error code (e.g. ECHH, ECUU, EUUU, EAAA…). Please see
section 11.2 Fail-Safe Operation on page 55.

6.1.2 The Screen / Menu Display

The Screen/Menu Display is the central user interface display, which shows all selected menus, their
submenus and parameters. In dependence of the selected main menu item, it displays the first
submenu item as default. The menu, submenu and entry selection will be done by specific buttons,
described herein afterwards.

6.1.3 The Pointing Device Indicator LED (red)

Indicates the switched-on state of the integrated pointing device LASER, LED or CAMERA.

6.1.4 The Status Indicator LED (green)

Shows a steady green after warm up period to indicate an error free function of the Endurance device.

INTERNAL TE MP.

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6.1.5 The four control elements (pushbuttons) of the control panel

6.1.5.1 The Browser Button

The Browser Button serves as a selector for one of the 5 integrated submenus. The
specific submenu selection can be done in the following ways:

• Pressing the Browser Button several times in series to toggle between the 5

submenus

• Holding the Browser Button pressed, toggles between the 5 submenus about

every 2 sec

Stop to press the Browser Button, if you’ve reached the preferred submenu, displayed on the
Screen/Menu display. The first menu entry of the selected submenu will be displayed as default.

The available submenus are:

• INFORMATION MENU

• CONFIGURATION MENU

• UNIT SETUP MENU

• INTERFACE MENU

• ANALOG MENU

6.1.5.2 The ENTER Button

The Enter Button confirms the selection of a submenu or a specific submenu entry.
After walking through the listed submenu entries by using the Navigate Buttons, the
selection done by the Enter Button initiates a blinking of the modifiable entry,
displayed in the 2nd row of the Screen/Menu display. To store updated entries a final
press of the Enter Button is needed. With the Enter Button you also walk through
multiple section entries, like network IP-addresses (4 subfields with a value range of
0-255).

6.1.5.3 The Navigate Up Button

The Navigate Up Button enables you to walk through the list of integrated entries per
submenu, increases marked numerical values or toggles the specific entry.

6.1.5.4 The Navigate Down Button

The Navigate Down Button enables you to walk through the list of integrated entries
per submenu, decreases marked numerical values or toggles the specific entry.

ENT

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6.2 The selectable submenus and associated entries

6.2.1 The INFORMATION MENU

The INFORMATION MENU is just for information and displays several unchangeable status data.

The order in which the status data appears is the following:

• CONDENSED INFOS (content is color mode and signal processing dependent;

MODE, INTERNAL TEMP. and EMISSIVITY is fix for 1­COLOR

o 1-COLOR, AVERAGE e.g. 1-COLOR___44.2°C, E=1.00__Av:10.0s
o 1-COLOR, PEAK HOLD e.g. 1-COLOR___44.2°C, E=1.00__Ph:10.0s
o 1-COLOR, VALLEY HOLD e.g. 1-COLOR___44.2°C, E=1.00__Vh:10.0s

MODE, INTERNAL TEMP. and SLOPE is fix for 2-COLOR

o 2-COLOR e.g. 2-COLOR___44.2°C, S=1.000__At:95%)

• INTERNAL TEMP. in °C or °F (e.g. 39.8 °C)

• ATTENUATION in % (e.g. 100%)

• LOW LIMIT in °C (e.g. 400.0 °C)

• HIGH LIMIT in °C (e.g. 3000.0 °C)

• SENSOR IDENT (e.g. E1RL-F2-D-0-0)

• SENSOR REVISION (e.g. 1.01.28)

• SERIAL NUMBER (e.g. 31760001)

• MAC ADDRESS (e.g. 001d8d200001)

6.2.2 The CONFIGURATION MENU

The CONFIGURATION MENU displays and accepts modifications of configuration data.

The order in which the configuration data appears is the following:

• MODE ( ▲ ▼ toggles between 1 – color and 2 - color)

• TEMP. UNITS ( ▲ ▼ toggles between °C and °F)

• RELAY MODE ( ▲ ▼ toggles between NORMALLY OPEN,

PERMANENTLY CLOSE,
PERMANENTLY OPEN
NORMALLY CLOSE)

• ATTENUATION RELAY ( ▲ ▼ toggles between 0% to 95%)

• ATTENUATION FAILSAFE ( ▲ ▼ toggles between 0% to 95%)

• POINTING DEVICE (content is dependent of integrated pointing device hardware

o NO DEVICE FOUND e.g. LASER/LED/CAMERA, NOT PRESENT
o LASER ▲ ▼ toggles between OFF and ON
o LED ▲ ▼ toggles between OFF and ON
o CAMERA ▲ ▼ toggles between OFF and ON)

• FACTORY DEFAULT ( ▲ ▼ toggles between NO and YES)

• KEY ENTER (UNLOCKED)

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6.2.3 The UNIT SETUP MENU

The UNIT SETUP MENU displays and accepts modifications of unit setup data.

The order in which the unit setup data appears is the following:

• SLOPE ( ▲ ▼ toggles between 0.850 to 1.150)

• EMISSIVITY ( ▲ ▼ toggles between 0.10 to 1.10)

• TRANSMISSIVITY ( ▲ ▼ toggles between 0.10 to 1.10)

• MATCH ( ▲ ▼ adapts displayed target temperature to real target temperature

by adaption of Emissivity [1C-mode] or Slope [2C-mode])

• AVERAGE ( ▲ ▼ to g g l es betw een 0.0 sec. to 300. 0

• PEAK HOLD ( ▲ ▼ toggles between 0.0 sec. to 300.0 sec.)

• VALLEY HOLD ( ▲ ▼ toggles between 0.0 sec. to 300.0 sec.)

• SETPOINT ( ▲ ▼ toggles between 0.0 °C to >3000.0 °C)

• DEADBAND ( ▲ ▼ toggles between 1 °C to 55 °C)

6.2.4 The INTERFACE MENU

The INTERFACE MENU displays and accepts settings of both integrated communication interfaces
(RS485 & LAN/Ethernet).

The order in which the interface setup data appears is the following:

• RS485 BAUD RATE ( ▲ ▼ toggles between 1200, 2400, 9600, 19200,

38400, 57600, 115200 bps)

• MULTIDROP ADDR. ( ▲ ▼ toggles between 000 to 032)

• TERMIN. RESISTOR ( ▲ ▼ toggles between OFF and ON)

• ETHERNET DHCP ( ▲ ▼ toggles between OFF and ON)

• ETHERNET IP (ENTER Button selects IP address byte aaa.bbb.ccc.ddd

▲ ▼ toggles between 0 and 255)

• ETHERNET NM (ENTER Button selects network mask byte aaa.bbb.ccc.ddd

▲ ▼ toggles between 0 and 255)

• ETHERNET GW (ENTER Button selects gateway addr. byte aaa.bbb.ccc.ddd

▲ ▼ toggles between 0 and 255)

• ETHERNET PORT ( ▲ ▼ toggles between TCP/UDP port 0 to 65535)

• WEB SERVER ( ▲ ▼ toggles between OFF and ON)

6.2.5 The ANALOG MENU

The ANALOG MENU displays and accepts settings of the integrated current loop analog output
interface (0 – 20mA, 4 – 20mA).

The order in which the analog setup data appears is the following:

• ANALOG OUT MODE ( ▲ ▼ toggles between 0 – 20mA, 4 – 20mA)

• OUT Lo LIMIT ( ▲ ▼ toggles between 0 °C to > 3000 °C)

• OUT Hi LIMIT ( ▲ ▼ toggles between 0 °C to > 3000 °C)

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6.3 Total Control Panel (User Interface) Structure

Figure 20: User Interface Flow Diagram

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Signal Post Processing Details

7 Signal Post Processing Details

7.1 Averaging

Averaging is used to smooth the output signal. The signal is smoothed depending on the defined time
basis. The output signal tracks the detector signal with significant time delay in which noise and short
peaks are damped. A longer average time smoothens the damping behavior. The average time is the
amount of time the output signal needs to reach 90% magnitude of an object temperature jump. The
range for the average time can be set from 0.1 to 300.0 seconds, whereas just 0.1 - 299.9 seconds will be
interpreted as averaging duration. A value of 300.0 seconds indicates that averaging post processing
depends on an external trigger signal. A low level input (GND) at external input (Trigger) will
promptly interrupt the averaging and will restart the average calculation with the current temperature
reading.

Figure 21: Averaging

Attention: The disadvantage of averaging is the time delay of the output signal. If the temperature

jumps at the input (hot object), the output signal reaches only 90% magnitude of the actual object
temperature after the defined average time.

Once Averaging is set above 0, it automatically activates. Note that other hold functions (like Peak
Hold or Valley Hold) cannot be used concurrently.

7.2 Peak Hold

The output signal follows the object temperature until a maximum is reached. The output will „hold“
the maximum temperature value for the selected duration of the peak hold time. Once the hold time is
expired, the peak hold function will reset and the output will resume tracking the object temperature
until a new peak is reached. The range for the peak hold time can be set from 0.1 to 300.0 seconds,
whereas just 0.1 - 299.9 seconds will be interpreted as peak hold duration. A value of 300.0 seconds
indicates that peak hold post processing depends on an external trigger signal. A low level input
(GND) at external input (Trigger) will promptly interrupt the peak hold function and restarts the peak
holding with the current temperature reading.

output temperature

object temperature

temperature jump

average time

Temp

Time

90% of temperature
jump

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Signal Post Processing Details

Figure 22: Peak Hold

Once Peak Hold is set above 0, it automatically activates. The output signal remains the same until one
of two things happens:

• The peak hold time runs out. In this case, the signal reverts to actual temperature.

• The actual temperature goes above the hold temperature. In this case, starts holding new

peak.

Note that other signal processing functions (like Averaging or Valley Hold) cannot be used
concurrently with Peak Hold.

7.3 Valley Hold

The output signal follows the object temperature until a minimum is reached. The output will „hold“
the minimum temperature value for the selected duration of the valley hold time. Once the hold time
is expired, the valley hold function will reset and the output will resume tracking the object
temperature until a new valley is reached. The range for the valley hold time can be set from 0.1 to

300.0 seconds, whereas just 0.1 - 299.9 seconds will be interpreted as valley hold duration. A value of

300.0 seconds indicates that valley hold post processing depends on an external trigger signal. A low
level input (GND) at external input (Trigger) will promptly interrupt the valley hold function and
restarts the valley holding with the current temperature reading.

output temperature

object temperature

hold time

hold time

Temp

Time

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Signal Post Processing Details

Figure 23: Valley Hold

Once Valley Hold is set above 0, it automatically activates. The output signal remains the same until
one of two things happens:

• The valley hold time runs out. In this case, the signal reverts to actual temperature.

• The actual temperature goes below the hold temperature. In this case, starts holding new

valley.

Note that other signal processing functions (like Averaging or Peak Hold) cannot be used
concurrently with Valley Hold.

7.4 Setpoint

The Setpoint function is a temperature supervising alarm mechanism, which can be activated. A
Setpoint entry defines a maximum supervising value for the target temperature. If the Setpoint value
is exceeded, an alarm state will be signaled by a relays contact. A zero (0.0) entry as a Setpoint value
deactivates the alarm functionality (Alarm mode off). To activate the alarm functionality, set the
Setpoint entry to a value between the lowest and the highest measurable target temperature. Once the
Setpoint is activated the relay changes state as the current temperature passes the setpoint
temperature.

7.5 Deadband

Deadband is a zone of flexibility around the Setpoint. The alarm does not go abnormal until the
temperature exceeds the Setpoint value by the number of set deadband degrees. Thereafter, it does not
go normal until the temperature is below the Setpoint by the number of set deadband degrees. The
Deadband is factory preset to ± 2° (C or F). Adjusting the Deadband entry is accomplished through
software or manual input via the control panel. For information regarding the Endurance sensor
communication protocols, see section 10 Programming Guide page 49. The following figure is an
example of the Deadband around a Setpoint temperature of 960°C (1760°F).

output temperature

object temperature

hold time

hold time

Temp

Time

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Signal Post Processing Details

Figure 24: Deadband Example

7.6 Outputs

7.6.1 Analog Output (current loop)

A current loop output circuit, which can be set either to 0-20mA or 4-20mA output current range,
drives the analog output signal. It can be connected directly to a recording device (e.g., chart
recorder), PLC, or controller. The whole analog output circuit impedance is limited to 500Ω. The
current loop resolution through a 16Bit DAC (Digital Analog Converter) per temperature unit is better
than 0.1 (°C or °F) over the total measurement range. A specific feature for the testing or calibrating of
connected equipment allows the current loop output to bet set to specific values, under range or over
range in RS485 or LAN/Ethernet operation mode. Via such functionality you can force the circuit,
operating in the 4-20mA mode, to transmit an output current less than 4mA (e.g. 2.0 or 3.0mA) or
above 20mA (e.g. 21.0 or 22.0mA).

7.6.2 Relay Outputs

The relay output is used as an alarm for failsafe conditions or as a setpoint relay. Please refer to
section 11.2 Fail-Safe Operation on page 55. Relay output relate to the current target temperature,
displayed on the green 7-segment LED display. The relay output can be used to indicate an alarm
state or to control external actions. The relay functionality can either be set to

NO (NORMALLY OPEN), NC (NORMALLY CLOSE),

PO (PERMANENTLY OPEN), PC (PERMANENTLY CLOSE)
by the control panel (user interface), an RS485 or LAN/Ethernet command in dependence of the
connected equipment. The relay PO and PC state can be used to detect wiring problems between the
Endurance sensor and the process environment, where the relay contact signal acts as a trigger.

7.6.3 Trigger

AVERAGE, PEAK HOLD or VALLEY HOLD can be reset by shorting the Trigger input signal to
Ground for a minimum of 10 msec. This can be done either with a momentary switch or a relay. The
Reset signal causes a new reading of the current measured temperature and restarts the selected signal
post processing function.

962°C

958°C

Setpoint: 960°C

Relay Changes State

Time

Normal State

Alarm

Alarm

Normal State

Deadband

Object Temperature

38 Rev. E1 Sep 2015 ENDURANCE 1R

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Signal Post Processing Details

7.7 Factory Defaults

To globally reset the unit to its factory default settings, go to the “factory default” menu item under
the configuration screen menu display. The baud rate and communications mode (single device or
multiple devices / multidrop) will not be affected.

Parameter

As shipped from Factory (Defaults)

Mode (1C / 2C)

2C- mode

Temperature Unit (°C / °F)

C

Slope

1.000

Emissivity

1.00

Transmissivity

1.00

Average

0.0

Peak Hold

0.0

Valley Hold

0.0

SETPOINT in (°C / °F)

0.0

DEADBAND in (°C / °F)

2

RS485 Communication Mode

2-wire half duplex, 38.400 Baud *

MULTIDROP ADDRESS

000 (single Endurance sensor)

TERMINAL RESI STO R

OFF

ETHERNET DHCP

OFF

ETHERNET IP-ADDRESS

192.168.42.132

ETHERNET NETMASK

255.255.255.0

ETHERNET GATEWAY ADDR.

192.168.42.1

ETHERNET PORTNUMBER

6363

WEB SERVER

OFF

ANALOG OUTPUT MODE

4 – 20mA

OUT Lo LIMIT for 4 mA

Low end of sensor temperature range (e.g. 400.0°C)

OUT Hi LIMIT for 20 mA

High end of sensor temperature range (e.g.3000.0°C)

Serial Output Transmission Mode

Burst mode, Default string = UTSI

Relay Output Control

Controlled by unit, NO function (indicates failsafe alarms)

Set Output Current

Controlled by unit, 4-20 mA

Lockout Control Panel Access

Unlocked

* RS485 Modes, like Baud Rate or 2-wire half duplex, ar e unchanged when the factor y defaults are r estored

Table 2: Factory Defaults

ENDURANCE 1R Rev. E1 Sep 2015 39

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Options

8 Options

Options are items that are factory installed and must be specified at time of order. The following are
available:

• Laser Sighting

• LED Sighting

• Video Sighting

• ISO Calibration Certificate, based on DAkkS (Deutsche Akkreditierungsstelle)

• Air/Water-Cooled Housing

8.1 Laser Sighting

The laser sighting allows fast and precise aiming at small, rapidly moving targets, or targets passing at
irregular intervals. The laser is specially aligned with the sensor’s lens to provide accurate, non­parallax pinpointing of targets. The laser comes as a small, bright red spot indicating the center of the
area being measured.

Figure 25: LASER Spot Size Indication

The laser is a Class II, AlGaInP type laser with an output power less than 1 mW, and an output
wavelength of 650 nm. The laser complies with FDA Radiation Performance Standards, 21CFR,
subchapter J, and meets IEC 825, Class 2 specifications.

To preserve laser longevity, the laser auto

matically turns off after approximately

10 minutes of constant use!

W

ARNING!

Avoid exposure to LASER light! Eye damage can result.
Use extreme caution when operating!
Never look direct into the

LASER beam.

If LASER Sighting is activated, avoid looking through
the Visual Sighting Port of the Control Panel, because
mirror and dispersion effects can injure Eyes.
Never point directly at another person!

Laser dot

Spot marker

Measured spot at the inner of the circle

40 Rev. E1 Sep 2015 ENDURANCE 1R

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Options

8.2 LED Sighting

The LED sighting allows fast and easy aiming at targets, which have to be centered in the
measurement spot. The LED is specially aligned with the sensor’s lens to provide accurate, non­parallax pinpointing of targets. The LED comes as a small, bright green spot, which indicates the
whole dimension of the measurement area.

Figure 26: LED Spot Size Indication

To preserve LED longevity, the LED

automatically turns off after approximately

10 minutes of constant use!

8.3 Video Sighting

The Video Sighting capability is an option to display the focused target area on an external computer
monitor via LAN/Ethernet link. The video resolution and the refresh rate depends on the system
architecture (single or multidrop) and the available network bandwidth. It can be used for picture
capturing in different applications.

8.4 Air/Water Cooled Housing

The Air/Water Cooled Housing allows the sensor to be used in ambient temperatures up to 120°C
(250°F) with air cooling, and 175°C (350°F) with water cooling. The cooling media should be
connected using 1/8” NPT stainless steel fittings requiring 6 mm (0.24 in) inner diameter and 8 mm
(0.31 in) outer diameter for the tube.

W

ARNING!

Avoid exposure to LED light! Eye damage can result.
Use extreme caution when operating!

Never look direct into the LED beam.

If LED Sighting is activated, avoid looking through the Visual Sighting Port of
the Control Panel, because mirror and dispersion effects can injure Eyes.

LED dot

Spot marker

Measured spot at the inner of the circle

ENDURANCE 1R Rev. E1 Sep 2015 41

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Options

Air flow should be 1.4 to 2.5 l/sec at 25°C (77°F). Water flow should be approximately 1.0 to 2.0 l/min
(water temperature between 10 and 27°C / 50 to 80.6°F). The maximal pressure limit is 5 bar (73 PSI).
Chilled water below 10°C (50°F) is not recommended.

The Air/Water Cooled Housing is delivered with plugs only removable with a 5 mm
hex wrench. Check your supplier for appropriate fittings.

Figure 27: Endurance Head with Air/Water-Cooled Housing Option

For ambient temperatures exceeding 175°C (350°F), the ThermoJacket

can be used. This

accessory allows operation at ambient temperatures up to 315°C (600°F)!

42 Rev. E1 Sep 2015 ENDURANCE 1R

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Options

8.4.1 Avoidance of Condensation

If environmental conditions makes water cooling necessary, it is strictly recommended to check
whether condensation will be a real problem or not. Water cooling also causes a cooling of the air in
the inner part of the sensor, thereby decreasing the capability of the air to hold water. The relative
humidity increases and can reach 100% very quickly. In case of a further cooling, the surplus water
vapor will condense out as water. The water will condense on the lenses and the electronics resulting
in possible damage to the sensor. Condensation can even happen on an IP65 sealed housing.

There is no warranty repair possible in case of condensation within the housing!

To avoid condensation, the temperature of the cooling media and the flow rate must be selected to
ensure a minimum device temperature. The minimum sensor temperature depends on the ambient
temperature and the relative humidity. Please consider the following table.

Relative Humidity [%]

Ambient Temperature [°C/°F]

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

5/

41

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

5/

41

10/

50

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

5/

41

5/

41

5/

41

5/

41

5/

41

10/

50

15/

59

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

5/

41

5/

41

5/

41

5/

41

10/

50

10/

50

10/

50

10/

50

10/

50

15/

59

20/

68

0/

32

0/

32

0/

32

0/

32

0/

32

0/

32

5/

41

5/

41

5/

41

10/

50

10/

50

10/

50

10/

50

15/

59

15/

59

15/

59

15/

59

15/

59

20/

68

25/

77

0/

32

0/

32

0/

32

0/

32

5/

41

5/

41

10/

50

10/

50

10/

50

10/

50

15/

59

15/

59

15/

59

20/

68

20/

68

20/

68

20/

68

20/

68

25/

77

30/

86

0/

32

0/

32

0/

32

5/

41

5/

41

10/

50

10/

50

15/

59

15/

59

15/

59

20/

68

20/

68

20/

68

20/

68

25/

77

25/

77

25/

77

25/

77

30/

86

35/

95

0/

32

0/

32

5/

41

10/

50

10/

50

15/

59

15/

59

20/

68

20/

68

20/

68

25/

77

25/

77

25/

77

25/

77

30/

86

30/

86

30/

86

30/

86

35/

95

40/

104

0/

32

5/

41

10/

50

10/

50

15/

59

20/

68

20/

68

20/

68

25/

77

25/

77

25/

77

30/

86

30/

86

30/

86

35/

95

35/

95

35/

95

35/

95

40/

104

45/

113

0/

32

10/

50

15/

59

15/

59

20/

68

25/

77

25/

77

25/

77

30/

86

30/

86

35/

95

35/

95

35/

95

35/

95

40/

104

40/

104

40/

104

40/

104

45/

113

50/

122

5/

41

10/

50

15/

59

20/

68

25/

77

25/

77

30/

86

30/

86

35/

95

35/

95

35/

95

40/

104

40/

104

40/

104

45/

113

45/

113

45/

113

45/

113

50/

122

60/

140

15/

59

20/

68

25/

77

30/

86

30/

86

35/

95

40/

104

40/

104

40/

104

45/

113

45/

113

50/

122

50/

122

50/

122

50/

122

50/

122

50/

122

50/

122

60/

140

70/

158

20/

68

25/

77

35/

95

35/

95

40/

104

45/

113

45/

113

50/

122

50/

122

50/

122

50/

122

50/

122

60/

140

60/

140

60/

140

60/

140

60/

140

60/

140

80/

176

25/

77

35/

95

40/

104

45/

113

50/

122

50/

122

50/

122

60/

140

60/

140

60/

140

60/

140

60/

140

90/

194

35/

95

40/

104

50/

122

50/

122

50/

122

60/

140

60/

140

60/

140

100/
212

40/

104

50/

122

50/

122

60/

140

60/

140

Tab. 3: Minimum device temperatures [°C/°F]

Temperatures higher than 65°C
(149°F) are not recommended due to
the temperature limitation of the
sensor.

Example:

Ambient temperature = 50 °C
Relative humidity = 40 %
Minimum device temperature = 30 °C

The use of lower temperatures is at your own risk!

ENDURANCE 1R Rev. E1 Sep 2015 43

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Accessories

9 Accessories

9.1 Overview

A full range of accessories for various applications and industrial environments are available.
Accessories include items that may be ordered at any time and added on-site. These include but are
not limited to the following:

E-PS

Power Supply (24VDC, 110/220VAC input ) & Endurance Terminal Block mounted in a NEMA 4 (IP65)
enclosure

E-POE

PoE Injector provides power and also acts as a single Ethernet hub (110/220VAC input) includes 2M office
grade Ethernet cable

E-SYSPS

24 VDC 1.2 A industrial power supply, DIN rail mount

E-TB

Endurance terminal block accessory

E-TBN4

Endurance terminal block in a NEMA 4 enclosure

E-AP

Air purge collar

E-PA

Pipe adapter (Sighting tubes listed below can be attached to this)

E-MN

Mounting nut (spare)

E-FB

Fixed bracket (spare)

E-AB

Adjustable bracket

E-SB

Swivel bracket

E-RA

Right angle mirror (for targets at right angles to sensor axis)

E-2CCON

12-pin DIN Cable connector

E-M5PK

M5 patch cable kit (To allow Endurance use with existing M5 cables)

E-M5WJAK

Modline 5 WJA adapter kit to allow for use of ER sensors in WJA

E-UAA

Endurance UAA (Universal Adapter Accessory)

E-AK-7

Adapter kit for mounting Endurance into existing WJ-5 water jacket installations

E-MF-7

Mounting flange

E-MFA-7

Flange adapter (to allow Endurance to mount to MF-7)

E-ECAP

Replacement glass end-cap for Endurance sensors

E- PW

Protective front window (includes O-Ring)

E-PFEC

Polarizing filter end cap (EN1R for reducing visual light in high temperature applications)

E-TJ1

ThermoJacket housing for Endurance sensors

E-TJ1M

ThermoJacket housing for Endurance sensors Metric Version

E-MF

Mounting Flange for ThermoJacket

E-MB

Adjustable mounting base for ThermoJacket

E-GTQ

Blast Gate Assembly with Quartz Window (HT model)

E-APA

Adjustable pipe adapter assembly

E-MST

Mounting flange for use with sighting tubes

E-STC12

30 cm (12") sighting tube, ceramic up to 1500°C (2730°F)

E-ST12

30 cm (12") sighting tube, stainless steel up to 800°C (1470°F)

E-BEESIGHT

30 cm (12") sighting tube, carbon steel with 45 degree end cut and slotted weep hole at base

E-2CFT

Focus adjustment tool, for use when Endurance sensors are installed in a Thermojacket.

E-WR

Water flow regulator (water cooling)

E-AR

Air purging flow regulator assembly with air filter

E-CAFR

Cooling air flow regulator (high capacity)

E-USB485

USB to RS232/422/485 converter

44 Rev. E1 Sep 2015 ENDURANCE 1R

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Accessories

Figure 28: Sensing Head with Air/Water-Cooled Housing Option

9.2 Fixed Mounting Bracket

The Fixed Mounting Bracket accessory can be used if the sensor will always remain in a fixed location.

Figure 29: Fixed Mounting Bracket

9.3 Air Purge Collar

The Air Purge Collar accessory is used to keep dust, moisture, airborne particles, and vapors away
from the lens. It can be installed before or after the bracket. It must be screwed in fully. Air flows into
the 1/8” NPT fitting and out the front aperture. Air flow should be a maximum of (0.5 to 1.5 liters/sec

Adjustable Mounting Bracket

Mounting Nut

Air Purge Collar

Fixed Mounting Bracket

Sensing Head

Sensing Head with Water Cooled

Housing Option

Polarizing Filter

End Cap

ENDURANCE 1R Rev. E1 Sep 2015 45

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Accessories

or 0.13 to 0.4 gallon/sec). Clean (filtered) or “instrument” air is recommended to avoid contaminants
from settling on the lens. Do not use chilled air below 10°C (50°F).

Focus the instrument before attaching the air purge collar.

Figure 30:Air Purge Collar

9.4 Polarizing Filter End Cap

A specific Polarizing Filter End Cap with an integrated Polarizing Filter can be ordered. The
Polarizing Filter will not fit in the standard Endurance end cap. The filter is foreseen for eye protection
when sighting on bright, high temperature targets through the visual sighting port. The filter does not
affect measured energy. It is solely for viewing comfort. Rotate the outer portion of the filter until you
achieve the desired visual attenuation.

Figure 31 Polarizing Filter

Polarizing filter will not fit in the standard

end cap. Do not look through the lens at

extremely bright objects with your eyes unprotected. Eye damage could occur.

46 Rev. E1 Sep 2015 ENDURANCE 1R

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Accessories

9.5 Cables

Two cable types are available for the Endurance sensor head. A shielded 12 conductor cable, made of
2 twisted pairs plus 8 separate wires, equipped with a M16 DIN connector on one side and wire
sleeves at the counter side. This cable houses RS485 communication signals, 24VDC power lines and
analog output signals. The second cable is a 4 conductor LAN/Ethernet cable, equipped with a M12
DIN connector on one side and a standard RJ45 connector on the counter side. Via the 4 connector
cable, the Endurance device can also be powered by PoE, if a specific PoE injector will be used. Both
cable types are available for low and high ambient temperature ranges and different cable lengths.

If you purchase your own shielded 12 conductor cable, use wire and shielding

regarding the valid Fluke Process Instruments specification. Maximum RS485 cable

length is 1200 meters (4000 feet). Power supply (24VDC) feed in distance to the sensor
head should not extend the 60m limit.

If you cut the shielded 12 connector cable to shorten it, notice that both sets of twisted­pair wires have drain wires ins

ide their insulation. These drain wires (and the white

wire that is not part of the twisted pair) must be connected to the terminal labeled

CLEAR. Refer to Section 5.2.3.3 for terminal block wiring diagram.

ENDURANCE 1R Rev. E1 Sep 2015 47

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Accessories

9.6 Industrial Power Supply

The DIN-rail mount industrial power supply delivers isolated dc power and provides short circuit
and overload protection.

To prevent electrical shocks, the power supply

must be used in protected environments

(such as inside electrical cabinets)!

Technical data:

Protection class class II as per IEC/EN 61140

Environmental protection IP20

Operating temperature range -25°C to 70°C (-13°F to 158°F)

AC Input 100 – 240 VAC 50/60 Hz [L/N]

wire size 0.5 to 2 mm² (AWG 24 to 12)

DC Output 24 VDC / 1.25 A [+/–]

wire size 0.5 to 2 mm² (AWG 24 to 12)

Figure 32: Dimension of Industrial Power Supply

48 Rev. E1 Sep 2015 ENDURANCE 1R

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Programming Guide

10 Programming Guide

This section explains the sensor’s communication protocol to be used when writing custom programs
for your applications or when communicating with your sensor with a terminal program over RS485
or LAN/Ethernet interface.

10.1 Remote versus Manual Considerations

Since the sensor includes a local user interface, the possibility exists for a person to make manual
changes to parameter settings. To resolve conflicts between inputs to the sensor, the following rules
are valid:

• Command precedence: the most recent parameter change is valid, whether originating from

manual or remote.

• If a manual parameter change is made, the sensor will transmit a “notification” string to the

host. (Notification strings are suppressed in multidrop mode.)

• A manual lockout command is available in the protocols set so the host can render the user

interface “display only,” if desired.

All parameters set via the Control Panel (user interface), the RS485 (2-wire, half duplex) or the
LAN/Ethernet interface are retained in the sensor’s nonvolatile memory.

When a unit is placed in multidrop mode its manual user interface is automatically
locked! It can be unlocked with the command XXXJ=U <CR>, where XXX is the
multidrop address.

10.2 Command Structure

Protocols are the set of commands that define all possible communications with the sensor. The
commands are described in the following sections along with their associated ASCII command
characters and related message format information. Types of commands include the following:

1. A request for the current value of a parameter

2. A change in the setting of a parameter

3. Defining the information contents of a string (either continuously output or periodically

polled at the option of the user)

The sensor will respond to every command with either an “acknowledge” or a “not acknowledge”
string. Acknowledge strings begin with the exclamation mark (!) and are either a confirmation of a set
command or a request of a parameter value.

If the unit is in multidrop mode the 3-digit address has to

be sent out before the exclamation mark.

For a new parameter setting by the user, a range check of allowed values will be performed by the
Endurance firmware. If an out of range for a parameter is detected by the firmware, a Range Error is
indicated and transmitted back by the Endurance sensor.

All commands via RS485 or LAN/Ethernet interface have to be entered in

upper case

(capital) letters.

ENDURANCE 1R Rev. E1 Sep 2015 49

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Programming Guide

After transmitting one command via RS485 or LAN/Ethernet link, the sender has to wait for the
response from the Endurance device before sending a subsequent one. The response time from the
Endurance device back to the sender depends on the following factors:

• Operation mode of the Endurance sensor (single or multidrop), without or with leading

device address bytes in the response string

• Chosen transmission link (RS485 or LAN/Ethernet) with different transmission speed

 RS485: 1200 bps – 115.200 bps (~ 120 char/sec – 11.520 char/sec)
 LAN/Ethernet: max. 100 Mbit/sec (~ 10.000.000 char/sec)

An asterisk * will be transmitted back to the sender in the event of an “illegal” instruction. An illegal
instruction is considered to be one of the following:

• An “out-of-range” parameter value

• Any not defined command character or value entered in the incorrect format (syntax error)

• Lower case character(s) entered (all characters must be upper case)

10.3 Transfer Modes

The protocol allows the use of two different modes: the Poll Mode and the Burst Mode

10.3.1 Poll Mode

The current value of any individual parameter can be requested by the host. The unit responds once
with the value at the selected baud rate. Additionally, the user-defined output string can be polled.

10.3.2 Burst Mode

The Endurance sensor transmits the user-defined output string continuously via RS485 (at selected
baud rate) or LAN/Ethernet (max. 100Mbps) in a user defined burst interval time. A user defined
burst string may contain several parameters in the user defined order.

The string may contain the following parameters:

1. Temperature unit ($=U) in °C or °F

2. Target temperature ($=T[2C-mode], $=W[wide band], $=N[narrow band]) in °C or °F

3. Power ($=Q[wide band], $=R[narrow band]) in mW

4. Emissivity ($=E) in the range from 0.0 – 1.10

5. Transmissivity ($=XG) in the range from 0.0 – 1.10

6. Attenuation ($=B) in the range from 0 – 100%

7. Average time ($=G) in the range from 0.0 – 300.0 sec

8. Peak hold time ($=P) in the range from 0.0 – 300.0 sec

9. Valley hold time ($=F) in the range from 0.0 – 300.0 sec

10. Internal ambient temperature ($=I) in the range from 0.0 – 100.0 in °C or °F

11. Top of temperature range ($=H) in the range from 0.0 – 9999.0 in °C or °F

An example string for the burst request command $=UTQEGH<CR>
The cyclically transmitted Endurance sensor string is: C T1250.5 Q400.5 E1.00 G7.5 H3000.0 <CR><LF>

50 Rev. E1 Sep 2015 ENDURANCE 1R

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Programming Guide

10.4 Command List

The table below describes the available commands via RS485 or LAN/Ethernet interface.

Description

Char Format

(2)

P

(1)

B

(1)

S

(1)

Legal Values

Factory Default

Burst string format

$

(3) √ √ (3)

UTSI

Show list of c om mands

? √

Measured attenuation

B

nn - nnn

√ √

00 to 100%

Burst speed

BS

n - nnnnn

√ √

5 msec – 10 sec (5 – 10000)

50 msec

Baud rate (6)

D

nnn - nnnn

√ √

012 = 1200 baud

38400 baud

√ √ 024 = 2400 baud

√ √ 096 = 9600 baud

√ √ 192 = 19200 baud

√ √

384 = 38400 baud

√ √

576 = 57600 baud

√ √

1152 = 115200 baud

Digital filter

DF n √ √

0 = OFF, 1 = ON

0

DHCP (Dyn. Host Config. Protocol)

DHCP n √ √

0 = OFF, 1 = ON

0

Emissivity

E

n.nn √ √ √ 0.10 – 1.10

1.00

Error Codes (9)

EC

nnnnnnnn

√

0000 – FFFF (Hex)

Valley hold time (4)

F

n.n - nnn.n

√ √ √

0.0 – 300.0 sec (300 s = ∞)

0.0

Average time (4)

G

n.n - nnn.n

√ √ √

0.0 – 300.0 sec (300 s = ∞)

0.0

Gateway Address

GW

nnn.nnn.nnn.nnn

√ √

0.0.0.0 - 255.255.255.255

192.168.42.1

Top of mA temperature range

H

n.n – nnnn.n

√ √ √

0.0 – 9999.0 (°C or °F)

Upper end of sensor range

Sensor internal am bi e nt

I

n.n - nnn.n

√ √

0.0 – 999.0 (°C or °F)

IP Address

IP

nnn.nnn.nnn.nnn

√ √

0.0.0.1 - 255.255.255.255

192.168.42.132

Switch panel l ock

J X √ √

L = Locked
U = Unlocked

Unlocked
Relay alarm output control

K n √ √

0 = off

2

1 = on 2 = Normally Open

3 = Normally Closed

Bottom of mA temperature ra nge

L

n.n – nnnn.n

√ √ √

0.0 – 9999.0 (°C or °F)

Lower end of sensor range

Mode–ER series

M n √ √ √

1 = 1 - color

2

2 = 2 - color

MAC Hardware Addr ess

MAC

nnnnnnnnnnnn

√

e.g. 001d8d2aaa01

Set at factory calibration

Target temp – 1-color narrow

N

n.n - nnnn.n

√ √

Net Mask

NM

nnn.nnn.nnn.nnn

√ √

0.0.0.1 - 255.255.255.255

255.255.255.0

Output current

O

nn √ √ 00 = controlled by unit

00

02 = under rang e

21 = over range

00 – 20 = current in mA

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Programming Guide

Description

Char Format

(2)

P

(1)

B

(1)

S

(1)

Legal Values

Factory Default

Peak hold time (4)

P

n.n - nnn.n

√ √ √

0.0 – 300.0 sec (300 s = ∞)

0.0

IP Portaddress

PORT

n - nnnnn

√ √

1 - 65535

6363

Wide Power

Q

n.nnnnnnn

√ √

Narrow power

R

n.nnnnnnn

√ √

Video relative reticle diameter

RC

n.n – nn.nn

√

Video relative reticle X-position

RX

n.n – nn.nn

√

Video relative reticle Y-position

RY

n.n – nn.nn

√

Slope S n.nnn √ √ √ 0.850 – 1.150

1.000

Set target tem perature

STT

n.n – nnnn.n

√ √

0.0 – 9999.0 (5)

Set at factory calibration

Target Temperature 2-color

T

n.n - nnnn.n

√ √

Terminator r esistor

TR n √ √

0 = OFF, 1 = ON

0 = OFF

TCP/IP time out interval

TTI

n - nnn

√ √

0 = ∞, 1 – 240 sec

0

Temperature units (scale)

U X √ √ √

C or F

non-US: C

Poll/burst mode

V X √ √

B = Burst , P = Polled

P = Polled

Target temp: 1-color wide

W

n.n - nnnn.n

√ √

(5) Web server ON/OFF

WS n √ √

0 = OFF, 1 = ON

0 = OFF

Burst string contents (3)

X$ √

Multidrop addres s

XA

nnn √ √ 000 to 032

000

Low temperature limit

XB

n.n - nnnn.n

√

0.0–9999.0 (5)

Set at factory calibration

Deadband (7)

XD

nn √ √ 01 – 55 in °C / 01 – 99 in °F

02

Restore fact ory defaults

XF √

Transmissivity

XG

n.nn √ √ √ 0.10 – 1.10

1.00

High temperature limit

XH

n.n – nnnn.n

√

0.0–9999.0 (5)

Set at factory calibration

Sensor initialization

XI n √ √ √

0 = flag reset, 1 = flag set

1

LASER / LED / Video ON / OFF

XL n √ √

0 = OFF, 1 = ON

0 = OFF

Sensor model type

XM X √

L = Low Temp., H = H i Temp

Set at factory calibration

0 - 20 mA / 4-20 mA analog output

XO n √ √

0 = 0 - 20 mA, 4 = 4 - 20 mA

4

Sensor firmware revision no.

XR

Xn √ e.g. 1.02.11

Set at factory calibration

Sensor analog part revi si on no.

XRA

Xn √ e.g. 1.02.01

Set at factory calibration

Setpoint / Relay function

XS

n.n – nnnn.n

√ √

0.0 to 3200.0°C / 5792.0°F (8)

0.0

Trigger

XT N √ √

0 = inactive, 1 = active

0

Identify unit

XU

Varies √ e.g. E1RL-F2-V-0-0

Set at factory calibration

Sensor serial number

XV

nnnnnnnn

V

e.g. 31712345 (8 digits)

Set at factory calibration

Attenuation to activate relay

Y

nn √ √ √ 0 to 95% energy

95%

Attenuation for failsafe

Z

nn √ √ √ 0 to 99% energy reduction

95%

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Programming Guide

Notes:

(1) Commands m ay appear as Polled for (queried), Burst string item or Set command
(2) n = number, X = uppercase letter.
(3) see section 10.3.2 Burst Mode, page 50
(4) Setting either Average, Peak Hold or Valley Hold, s ets non concerned signal post processing settings to factory default value
(5) In current scale °C or °F
(6) The sensor restarts after a baud rate c hange. (Command is not allo wed in multidrop mode.)
(7) No effect if relay in alarm mode.

(8) Non-zero setpoint value puts unit in setpoint mode. Setpoint i s in current scale °C or °F and must be within unit’s temperature range.

(9) Error Codes returned out of ?EC-Command (16 Bit-Word, 0000000000000000 – 1111111111111111)

215

214

213

212

211

210

29

28

27

26

25

24

23

22

21

20

Alarm detection

Narrow band temperature over range

Narrow band temperature under range

Wide band temperature over range

Wide band temperature under range

Two-color temperature over range

Two-color temperature under range

Attenuation > 95% ("dirty window")** (1)

Attenuation too high (> 95%) (1)

Energy too low

Narrow band detector failure

Wide band detector failure

Internal temperature under range

Internal temperature over range

Heater control temperature under range

Heater control temperature over range

Table 4 Command List

10.5 Command Examples

HOST

SENSOR

HOST

WHERE USED (1)

Description

Query 

Answer

Set 

P B S

Burst string format

001?$

001!$UTSI

001$=UTSI

√ √

Show list of c om mands

001? √ Measured attenuation

001?B

001!B12

√ √ Baud rate

001?D

001!D384

001D=384

√

Emissivity

001?E

001!E0.95

001E=0.95

√ √ √

Average time

001?G

001!G1.2

001G=1.2

√ √ √

Top of mA rang e

001?H

001!H2000.0

001H=2000.0

√ √ √

Sensor internal am bi e nt

001?I

001!I37.9

√ √ Switch panel l ock

001?J

001!IJL

001J=L

√ √

Relay alarm output control

001?K

001!K0

001K=0

√ √

Bottom of mA range

001?L

001!L1200.0

001L=1200.0

√ √ √

Mode – ER seri es

001?M

001!M1

001M=1

√ √ √

Target temperature, 1-color narrow

001?N

001!N1158.0

√ Output current

001?O

001!O10

001O=10

√ √ √

Peak hold time

001?P

001!P5.6

001P=5.6

√ √ √

Power

001?Q

001!Q36.102000

√ √ Narrow Power

001?R

001!R2.890000

√ √ Slope

001?S

001!S0.850

001S=0.850

√ √ √

Target temperature,
ER series 2-color

001?T

001!T1225.0

√ √
Temperature units

001?U

001!UC

001U=C

√ √ √

Poll/Burst mode

001!VP

001V=P

√

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Programming Guide

Target temperature, 1-color wide

001?W

001!W1210.0

√ √

Burst string contents

001?X$

001!UC T1200.5
S0.850 I37.9

√
Multidrop addres s

001?XA

001!XA013

001XA=013

√ √ √

Low temperature limit

001?XB

001!XB400.0

√ Deadband

001?XD

001!XD12

001XD=12

√ √

LASER / LED / Video ON / OFF

001?XL

001!XL1

001XL=1

√ √

Table 5: Command Examples

P = Poll Mode (Request for a parameters) B = Burst Mode (continuous sending of parameters in the burst string)

S = Set (Command for setting a parameters) N = Notification (Acknowledgment for setting a parameter)

The given examples are related to a unit in a multidrop network, addressed with address 001.
Stand-alone units (address 000) don’t have an address information in the command.

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Maintenance

11 Maintenance

Our sales representatives and customer service are always at your disposal for questions regarding
application assistance, calibration, repair, and solutions to specific problems. Please contact your local
sales representative if you need assistance. In many cases, problems can be solved over the telephone.
If you need to return equipment for servicing, calibration, or repair, please contact our Service
Department before shipping. Phone numbers are listed at the beginning of this document.

11.1 Troubleshooting Minor Problems

Symptom

Probable Cause

Solution

No output

No power to instrument

Check the power supply

Erroneous temperature

Faulty sensor cable

Verify cable continuity

Erroneous temperature

Field of view obstruction

Remove the obstruction

Erroneous temperature

Window lens

Clean the lens

Erroneous temperature

Wrong slope or emissivity

Correct the setting

Temperature fluctuates

Wrong signal processing

Correct Peak Hold or Average settings

Table 6: Troubleshooting

11.2 Fail-Safe Operation

The Fail-Safe system is designed to alert the operator and provide a safe output in case of any system
failure. Basically, it is designed to shut down the process in the event of a set-up error, system error, or
a failure in the sensor electronics.

The Fail-

Safe circuit should never be relied on exclusively to protect critical heating

processes. Other safety devices should also be used to supplement this function!

11.2.1 Fail-Safe Error Codes (displayed or transmitted via electrical interface)

When an error or failure does occur, the temperature display indicates the possible failure area, and
the output circuits automatically adjust to their lowest or highest preset level. The following table
shows the values displayed on the 7-segment temperature display and transmitted over the RS485 or
LAN / Ethernet interface.

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Maintenance

Condition

2-Color

1-Color

(wide band)**

1-Color*

(narrow band)**

Heater control temperature over range

ECHH

ECHH

ECHH

Heater control temperature under range

ECUU

ECUU

ECUU

Internal temperature over range

EIHH

EIHH

EIHH

Internal temperature under range

EIUU

EIUU

EIUU

Wide band detector failure

EHHH

EHHH

<temperature>

Narrow band detector failure

EHHH

<temperature>

EHHH

Energy too low

EUUU

<temperature>

<temperature>

Attenuation too high (>95%)***

EAAA

<temperature>

<temperature>

Attenuation too high >95%

("dirty lens", relay will go t o “alarm” stat e)***

<temperature>

<temperature>

<temperature>
2-color temperature under range

EUUU

<temperature>

<temperature>

2-color temperature over range

EHHH

<temperature>

<temperature>

Wide band temperature under range

<temperature>

EUUU

<temperature>

Wide band temperature over range

<temperature>

EHHH

<temperature>

Narrow band temperature under range

<temperature>

<temperature>

EUUU

Narrow band temperature over range

<temperature>

<temperature>

EHHH

* only available via RS485 or LAN / Ethernet command
** Wide and narro w band stands for the first and the second wavelength in 2-color mode
*** Note that the activatio n

levels for these conditio ns may be set to different val ues. (e.g., "dirty lens" at 9 5%, EAAA at 98%)

Table 7: Fail-safe Error Codes

11.2.2 Analog Output (Current) values in dependence of Fail-Safe Error Codes

The relay is controlled by the temperature selected on the display. If any failsafe code appears on the
display, the relay changes to the “abnormal” state. The exception is the “dirty window” condition.
This causes the relay to change state, leaving a normal numerical temperature output.

Error Code

0 – 20 mA Output

4 – 20 mA Output

no error

according to temperature

according to temperature

ECHH

21 to 24 mA

21 to 24 mA

ECUU

0 mA

2 to 3 mA

EIHH

21 to 24 mA

21 to 24 mA

EIUU

0 mA

2 to 3 mA

EUUU

0 mA

2 to 3 mA

EHHH

21 to 24 mA

21 to 24 mA

EAAA

0 mA

2 to 3 mA

Table 8: Current Output Values in accordance to an Error

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Maintenance

If two or more errors occur simultaneously, the error with the highest priority overrules the lower
priority errors. The highest priority error will be displayed on the 7-segment temperature display and
the assigned analog output (current) value (see Table 8) will be set. For instance, in 2-color mode, if the
internal ambient temperature is over the limit and the attenuation is to high too, the unit outputs
EIHH to the temperature display and sets an analog output current of 21 mA on the analog current
loop output lines. However, since 2-color wide band and narrow band temperatures may all be
presented simultaneously through RS485 or LAN / Ethernet interface, their over and under range
conditions are independent.

Following order shows the priorities of the possible failsafe conditions:

1. Heater control temperature over range highest priority

2. Heater control temperature under range

3. Internal temperature over range

4. Internal temperature under range

5. Wide band detector failure

6. Narrow band detector failure

7. Energy too low

8. Attenuation too high (> 95%)

9. Attenuation > 95% (“dirty window”)

10. Two-color temperature under range

11. Two-color temperature over range

12. Wide band temperature under range

13. Wide band temperature over range

14. Narrow band temperature under range

15. Narrow band temperature over range lowest priority

Examples of failsafe conditions:

1. One-color temperature is selected to show on the temperature display. Two-color temperature

is transmitted in burst mode. Wide band temperature is under range. Two-color temperature

is 999°C.
Outputs:
Temperature Display: EUUU
RS485 or LAN/Ethernet: C T999.0
Analog Output: 2 to 3 mA
Relay: abnormal state

2. Two-color temperature is selected to show on the temperature display. All three temperatures

are transmitted in burst mode. Two-color temperature is 1021.0°C. Wide band temperature is

703.0°C. Narrow band temperature is 685.0°C. Attenuation is above 95%, the “dirty window”

threshold.
Outputs:
Temperature Display: 1021.0
RS485 or LAN/Ethernet: C T1021.0 W703.0 N685.0
Analog Output: scaled to temperature, between 4 and 20 mA
Relay: abnormal state

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Maintenance

11.3 Cleaning the Lens

Keep the lens clean at all times. Any foreign matter on the window will affect 1-color measurement
accuracy and may affect two-color accuracy. However, care should be taken when cleaning the lens.
To clean the window, do the following:

1. Lightly blow off loose particles with “canned” air (used for cleaning computer equipment) or

a small squeeze bellows (used for cleaning camera lenses).

2. Gently brush off any remaining particles with a soft camel hair brush or a soft lens tissue

(available from camera supply stores).

3. Clean remaining “dirt” using a cotton swab or soft lens tissue dampened in distilled water. Do

not scratch the surface.

For finger prints or other grease, use any of the following:

• Denatured alcohol

• Ethanol

Apply one of the above to the lens. Wipe gently with a soft, clean cloth until you see colors on the
surface, then allow to air dry. Do not wipe the surface dry, this may scratch the surface.

If silicones (used in hand creams) get on the window, gently wipe the surface with Hexane. Allow to
air dry.

11.4 Changing the Window

Sometimes extremely harsh environments can cause damage to the window.

A replacement protective front window (E-PW) is available.

To replace the sensor’s protective front window, complete the following:

1. With a very small flat-bladed screw driver (e.g., a jeweler’s screwdriver), pry out the

rubberized Buna-N 70 durometer O-ring. The O-ring is set in a groove in front of the window.

2. Turn the sensor face down (window pointing down), and the window should fall out.

3. Turn the sensor face up and insert the new window. (Make sure both sides of the window are

clean.)

4. Replace the O-ring.

Do not use any ammonia or any cleaners containing ammonia to clean the lens. This

may result in permanent damage to the lens’ surface!

If you use a fine-bladed knife to remove the O-

ring, be careful not to cut or sever the

ring.

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Appendix

12 Appendix

12.1 Determination of Slope (for 2 – color operation)

The following slope settings are approximate and will vary depending on the metal alloy and surface
finish, as well as the application. These are supplied here as examples.

Set the slope to approximately 1.000 for measuring the following metals with oxidized surfaces:

• Stainless Steel • Cobalt • Steel

• Iron • Nickel

Set the slope to approximately 1.060 for measuring the following metals with smooth, clean,
unoxidized surfaces:

• Iron • Nickel • Tantalum

• Stainless Steel • Rhodium • Tungsten

• Cobalt • Steel

• Molybdenum • Platinum

Molten iron also has an approximate slope setting of 1.060.

How to determine slope?

The most effective way to determine and adjust the slope is to take the temperature of the material
using a probe sensor such as an RTD, thermocouple, or other suitable method. Once you determine
the actual temperature, adjust the slope setting until the sensor’s temperature reads the same as the
actual temperature reading. This is the correct slope for the measured material.

12.2 Percentage of allowed signal reduction

Figure 33 and Figure 34 show each sensor model’s percentage of allowed signal reduction at all
temperatures. Refer to these graphs to estimate what percentage of target area must be visible to the
sensor at temperatures below the minimum temperature (95% attenuation) as shown in Table 1:

Models of this manual.

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Appendix

Figure 33: Model L Percentage of Allowed Signal Reduction

Figure 34: Model H Percentage of Allowed Signal Reduction

Model L – up to 95% allowed signal reduction

800°C (1472°F) to 1800°C (3272°F)

Attenuation Factor

Target Temperature

Maximum Allowed Signal Reduction [%]

Attenuation Factor

Target Temperature

Maximum Allowed Signal Reduction [%]

Model H – up to 95% allowed signal reduction

1300°C (2372°F) to 3200°C (5792°F)

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Appendix

12.3 Determination of Emissivity (for 1-color operation)

Emissivity is a measure of an object’s ability to absorb and emit infrared energy. It can have a value
between 0 and 1.0. For example a mirror has an emissivity of 0.1, while the so-called “Blackbody“
reaches an emissivity value of 1.0. If a higher than actual emissivity value is set, the output will read
low, provided the target temperature is above its ambient temperature. For example, if you have set

0.95 and the actual emissivity is 0.9, the temperature reading will be lower than the true temperature.

An object’s emissivity can be determined by one of the following methods:

1. Determine the actual temperature of the material using an RTD (PT100), a thermocouple, or any

other suitable method. Next, measure the object’s temperature and adjust emissivity setting until
the correct temperature value is reached. This is the correct emissivity for the measured material.

2. If possible, apply flat black paint to a portion of the surface of the object. The emissivity of the

paint must be above 0.98. Next, measure the temperature of the painted area using an emissivity
setting of 0.98. Finally, measure the temperature of an adjacent area on the object and adjust the
emissivity until the same temperature is reached. This is the correct emissivity for the measured
material.

12.4 Typical Emissivity Values

The following table provides a brief reference guide for determining emissivity and can be used when
one of the above methods is not practical. Emissivity values shown in the table are only approximate,
since several parameters may affect the emissivity of a material. These include the following:

1. Temperature

2. Angle of measurement

3. Geometry (plane, concave, convex)

4. Thickness

5. Surface quality (polished, rough, oxidized, sandblasted)

6. Spectral range of measurement

7. Transmissivity (e.g. thin films plastics)

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Appendix

EMISSIVITY AT 1 µM FOR METALS

EMISSIVITY AT 1 µM FOR METALS

Material

Emissivity

Material

Emissivity

Aluminum

Iron, cast

unoxidized

0.1-0.2 oxidized

0.7-0.9

oxidized

0.4 unoxidized

0.35

roughened

0.2-0.8 molten

0.35

polished

0.1-0.2

Magnesium

0.3-0.8

Brass

Molybdenum

polished

0.1-0.3 oxidized

0.5-0.9

Burnished

0.6 unoxidized

0.25-0.35

Chromium

0.4

Monel (Ni-Cu)

0.3

Copper

Nickel polished

0.05 oxidized

0.8-0.9

roughened

0.05-0.2 electrolytic

0.2-0.4

oxidized

0.2-0.8

Silver

0.04

Gold

0.3 Steel

Haynes

cold rolled

0.8-0.9

Alloy

0.5-0.9 polished sheet

0.35

Inconel

molten

0.35

oxidized

0.4-0.9 oxidized

0.8-0.9

sandblasted

0.3-0.4 stainless

0.35

electropolished

0.2-0.5

Tin (unoxidized)

0.25

Iron

Titanium

oxidized

0.4-0.8 polished

0.5-0.75

unoxidized

0.35 Zinc molten

0.35 oxidized

0.6 polished

0.5

Table 9: Typical Emissivity Values (Metals)

E

MISSIVITY AT 1 µM FOR NON-METALS

Material

Emissivity

Asbestos

0.9

Ceramic

0.4

Concrete

0.65

Carbon

unoxidized

0.8-0.95

graphite

0.8-0.9

Table 10: Typical Emissivity Values (Non-Metals)

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