Answers to questions, perhaps not covered by existing documentation:


Q. Can I use the PoE adapter from the ThermoView sensor?

No. Further information can be found here: PoE Comparison


Q. The serial number on the label is not readable, but the MAC address and model number is. How can I find the serial number.

A. The serial number is visible in the software and also on the rear LCD display on the information menu next in the list after the MAC address. If it is not possible to use the display or software (defective unit) we can cross reference the MAC address and serial number in our production database. Please open a new ticket for this enquiry, we aim to provide the information within 24 hours.


Q. With an E1R or E2R how can I evaluate the stability of the set slope value

A. Using DatatempMultidrop you can observe the two single wavelength temperature readings (wide band and narrow band). The emissivity cannot be set individually for each wavelength, but in a process evaluation, if the wide and narrow band 1C readings are equal, you can work with a slope of 1. You can also determine that the slope value is not stable. In this case the difference between wide and narrow band readings should be fairly consistent over time or  temperature. If this is not this case further testing will required. For example dynamic slope adjustment (via analog input or PLC) or consideration that the slope value is only valid for a small measurement window (setpoint).


Q. Is Endurance compatible with a Raytek MM or Ircon Modline 7 Thermojacket

A. Yes, but you will need the nose cone adapter (Item number 249411)  plus the Endurance extraction tool (E-TJET Item number 486752).


Q. My Endurance has a different temperature range than it should, what can I do?

A. We are able to correct this via remote connection. Note that the device temperature range and the mA output temperature range are independent. The mA output range can be adjusted on the sensor rear panel. For us to perform the correction, the sensor must be connected to a pc that is connected to the internet and running our Teamviewer support software. Please raise a ticket for this or send an email to techsupport@flukeprocessinstruments.com


Q. Can the Endurance under and over range  mA values be customized, like with Modline 5? Typically this would be for under range behavior to define 4mA so a control system does not interpret the 2-3mA as a cable break.

A. Yes, since firmware revision  2.02.18 (July 2017) it has been possible to set non default under and over range mA values via the ASCII command ALO (under range) and AHO (over range). This parameter is adjustable using DTMD v6 or via an terminal program.


Q. Does the sighting reticle (center circle in thru-lens sighting) show the spot size when the unit is defocused?

A. No. For example, with the focus set closer than the actual distance the reticle will be smaller than the spot size. The reticle size is optimized for when the unit is focused.


Q. Does the sighting LED sighting show the spot size when the unit is defocused?

A.  Yes, spot sizes in all focus setting and at all positions are indicated


Q. What is are wavelengths of the two bands in an E1R sensor?

A. Wide band (top) 0.75-1.1um. Narrow band (bottom) 0.95-1.1um


Q. Are the specific wavelengths available for other Endurance sensors?

A. Yes, but only supplied on demand as these are not published values. Please raise a tech' support ticket.


Q. What is the min/max emissivity setting?

A. 0.1 to 1.1


Q. What is the min/max slope setting?

A. 0.85 to 1.15


Q. What signal is needed for remote adjustment of emissivity or slope?

A. 0-20mA or 4-20mA. Selectable in software or on rear panel of sensor 

Current Input Mode or ASCII command INM=0 and INM


Q. Can the emissivity  or slope scale be adjusted?

A. No


Q. Is there a lookup table for emissivity/slope and corresponding mA value available?

A. Yes https://fluke.freshdesk.com/en/support/solutions/articles/19000116372-remote-emissivity-slope-ma-lookup-table


Q. Can the remote ambient temperature compensation be scaled?

A. Yes - usually to match the IR sensor used to measure the ambient reflection.


Q. How many video streams are possible concurrently?

A.  2 streams are possible. This can be any combination of DTMD, Web Server or Streaming Link.


Q. To which standard do we test repeatability to:

A.  We use the test method described in IEC/TS 62492-2 section 5.14 and VDI/VDE 3511 Part 4.3 section 5.3.


Q. How does offset and gain affect the reading - is it on the energy or the temperature reading?

A. The offset and gain applies to the temperature reading.


Q. In a ratio version is it possible to adjust (calibrate) the 1C and 2C readings separately?

A. Yes, since firmware fw2.02.29 the wideband reading (1C) and the 2C readings have separate offset and gain parameters.


Q. What is the minimum data burst time interval?

A. 5ms 


Q. Can this data transfer be improved on?

A. Not via burst. It is possible to poll a single command like ?T without interval and response close to 2ms (specification not guaranteed and reliant on a number of factors).


Q. What are the dimensions of the sapphire windows used in E-FB1 (standalone screw on protective window) and E-FORFQP (two piece quick release window and air purge collar set)?

A. Diameter 15.88mm (0.625"), thickness 2mm (0.079").


Q. How does "Field Calibration" work with Endurance and  industrial protocols?

A. Offset and gain values can be defined in the initialization parameters in the respective project. If the sensor has non-default offset and gain values set before installing into an industrial protocol system, care is needed to ensure that these offset and gain parameters are matched in the project, otherwise the standard values will overwrite the set values. As these values are defined only as initialization parameters, it is not possible to adjust these incrementally or "on the fly" like emissivity or transmissivity.


Q. How does "Field Calibration" work with Endurance?

A. The field calibration function in DTMD v6 is a tool built in to the software for calculating and updating the standard offset and gain parameters (DO and DG) in the device.  1 point (offset) and 2 point (offset and gain) options are available. After running through the steps of the routine, the offset and gain values are uploaded to the device). These parameters can further be adjusted incrementally via the parameter list.