Operating instructions CellaCast PX 8x 1 General 1.1 Information about the manual The Operating Manual shall enable the user to properly install the pyrometer and the required accessories� Before starting installation, be sure to read and understand this entire manual, in particular the chapter on safety! The instruc- tions contained in this manual, especially those concerning safety, as well as site specific regulations governing UV radiation must be complied with at all times�...
Operating instructions CellaCast PX 8x 1.4 Copyright This Operating Manual should be treated as confidential� It is solely intended for the use by persons involved with the instrument� This manual may not be made available to a third party without prior Manufacturer’s consent� Please contact the Manufacturer if the need should arise�...
Operating instructions CellaCast PX 8x 2.4 Laser Radiation Hazard Laser radiation can be harmful to eyey! The CellaCast PX with laser operates with a class 2 red light laser� Direct pro- longed viewing of a laser beam can injure the retina� Therefore, the following safe- ty precautions must be strictly observed, otherwise the laser may not be operated! •...
Old electrical and electronic devices frequently still contain valuable materials� These devices can be returned for disposal to the manufacturer or they must be disposed properly by the user� For the improper disposal of the device by the user, the company KELLER HCW is not responsible�...
Operating instructions CellaCast PX 8x 4 Theory of Non-Contact Temperature Measurements All materials radiate thermal energy in all states of aggregation above absolute zero� This radiation is mainly caused by atomic or molecular oscillations� This temperature radiation is only a limited sector within the total electromagnetic radiation spectrum�...
Operating instructions CellaCast PX 8x The emissivity coefficient indicates the ratio of radiation of a real body (target) to the radiation of an ideal black body (target) to the radiation of an ideal black body� ε(λ): Emissivity coefficient of the object’s surface (targeted spot) at wavelengh λ M: Emissivity coefficient of the object’s surface (targeted spot) at wavelength MS: radiant energy emitted by a black body (perfect radiator) Most burning, annealing and hardening furnaces emit a radiation of nearly ‚1‘...
Operating instructions CellaCast PX 8x 6 Installation 6.1 Selecting an installation location When choosing the installation location and during the pyrometer alignment, it is imperative to ensure that only the free pouring stream is within the field of view� When the background is hotter than the object focused on or when the meas- urement is made through the inoculant, the accuracy of measurement will be influenced�...
Operating instructions CellaCast PX 8x If the expected ambient temperatures are > 65 °C, a cooling system is required� 6.3 Assembly fibre optic cable One end of the optical fibre has a nameplate showing the serial number of the corresponding basic pyrometer� This is the end which must be screwed onto the pyrometer�...
Operating instructions CellaCast PX 8x 7 Electrical connection The pyrometer is supplied with low voltage 24 DC (18 ��� 32 V DC)� ATTENTION The device may only be installed by a skilled, qualified electrician� Do not con- nect it while the voltage supply source is turned on� Please observe international safety regulations at all times�...
Operating instructions CellaCast PX 8x 8 Focussing If the pyrometer is mounted in a cooling or protective housing, remove the pyrome- ter from the protective fitting� For easier focusing, hold the pyrometer parallel to the cooling or protective fitting� Pyrometer with through-lens sighting When aiming the pyrometer with through-the-lens sighting to a target, both the targeted object and the target marker (distinctly marked circled or rectangle spot in the viewfinder) must appear in sharp focus simultaneously�...
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Operating instructions CellaCast PX 8x The activated laser pilot light can influence the measured temperature� This influence will vary, depending on the instrument model and the temperature� To protect the laser against overload, an over temperature is provided� At temper- atures above 60 °C, the laser switches of an can no longer be activated�...
Operating instructions CellaCast PX 8x 9 Parameters to be set for commissioning On delivery the pyrometer is parameterized for the measurement on liquid metals� The start of a measuring cycle is automatically detected and depends on limit 1, limit 2 and the dead time� Before starting the measurement, Limit 1 must have fallen below at least once�...
Operating instructions CellaCast PX 8x 9.1 Setting the sampling time at the PX 83 On delivery the pyrometer is parameterized on a discontinuous pouring stream� If the pouring times are < 5 seconds the measuring time needs to be adapted� The time delay (time after detection of the pouring stream up to the start of the meas- urement) and the measurement time must be less than the minimum pouring time�...
Operating instructions CellaCast PX 8x ► In the functional menu press ▲ or ▼ to change to the parameter [End], then press [Mode]� If the time delay T . D EL must also be adjusted, proceed as described above� In this case the parameter T .
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Operating instructions CellaCast PX 8x ► Wait 30 seconds ► Press ▲ or ▼ to change to the parameter [End]� Then Press [Mode] to change to the functional menu� ► In the functional menu press ▲ or ▼ to change to the parameter [End], then press [Mode]�...
Operating instructions CellaCast PX 8x 10 Adaptation of temperature level By changing the emissivity ratio, the difference between the measured temperature level and true temperature can be compensated� For this purpose, a comparison measurement with an immersion lance is required� Adjust emissivity ratio in such a way that the measured values coincide�...
Operating instructions CellaCast PX 8x ► Press ▲ or ▼ for 2 seconds > The value of the selected emissivity ration is displayed, for example [103 . 0 ] ► Press ▲ or ▼ until the desired emissivity ratio will show ►...
Operating instructions CellaCast PX 8x 12 Operating control and display 1 to 4: Indicator-LEDs LED 1 = Switching state of switching output OUT1 LED 2 = Switching state of switching output OUT2 LED 3 = Laser pilot light active LED 4 = IO-Link Communication 5: Control key [MODE] •...
Operating instructions CellaCast PX 8x 12.1 Processing of measuring signals The pyrometer disposes of an IO-Link interface� The generated three output signals correspond to the parameterization: • Out 1: Switching output/ IO-Link ■ Switch signal: threshold value temperature / status signal •...
Operating instructions CellaCast PX 8x 12.3 Switching threshold OUT 1 OUT1 changes its switching status when the configured upper or lower thersholds [d1. S P,d1. r P] are exceeded� Source d1. S specifies the signal that is output at OUT1� •...
Operating instructions CellaCast PX 8x 12.7 Hysteresis function [dr] [dS] [dr] [dS] [dr] [dS] [dS] [dS] [dS] [dr] [dS] [dr] [dS] [dr] [dS] [dr] = temperature rP = reset point = time dS = switch on delay SP = set point dR = switch off delay Temperature Switch signal hno...
Operating instructions CellaCast PX 8x 12.8 Window function [dS] [dr] [dS] [dr] [dr] [dS] [dr] [dr] [dr] [dS] [dS] [dr] [dS] [dS] = temperature rP = lower limit value = time dS = switch on delay SP = upper limit value dR = switch off delay Temperature Switch signal Fno...
Operating instructions CellaCast PX 8x 12.9 Switching output OUT 2 OUT2 changes its switching state according to the adjusted function� The functions and parameters are the same as OUT 1� 12.10 Dirt alert A dirt alert function is available to ensure a safe measurement for the PX pyrom- eter�...
Operating instructions CellaCast PX 8x 12.11 Damping function When the target object‘s temperature is erratic, the damping function smoothens these temperature fluctuations in order to stabilize the measuring signal� The greater the time constant, the lower the effect of fluctuations on the yielded temperature reading� Two-colour mode [qu] →...
Operating instructions CellaCast PX 8x choose a hold time which is approximate 1�5 time as long as cycle of the moving targets� This avoids temperature drops� Any changes are recognised at once� Two-colour mode [q] → [q. P hd] → [t iME] One-colour mode [L1] →...
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Operating instructions CellaCast PX 8x Before beginning the measurement, the temperature Limit 1 (LI . 1 ) reading must have been lower than Limit 1 at least once� If Autoreset (A�RST=ON) the limit 1 will be ignored Limit 2 must be exceeded at least fort he duration of Limit 2 (LI .
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Operating instructions CellaCast PX 8x Threshold for plausibility check: lower limit which is Plausibility (t. F AL) acceptable for a valid measurement� Threshold for plausibility check: upper limit which is Plausibility (t. r iS) acceptable for a valid measurement� When sampling is completed, the average temperature value or „0“ will be output� At the same time, an impulse is generated which can be used for the digital out- puts�...
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Operating instructions CellaCast PX 8x 1500 Li. 2 t.dEl t.Act t.dEl t.Act t.dis t.dis Li. I 1000 Li. 2 = limit 2 t. d EL = time delay Li. I = limit 1 t. A ct = sampling time t. d iS = cut-off interval Measuring object in front oft he pyrometer Temperature output t.
The IODDs required for configuring the IO-Link device as well as detailed information on process data set-up, diagnostic functions and parameter addresses are available in the download area at www�keller�de/its� For IO-Link operation a 3-wire cable port Class A (Type A) must be used�...
Operating instructions CellaCast PX 8x 13.7 Advanced Features 8888 Mode Mode c.ouL . c.tbc diSP Unit c.coL t.SiM rES . Mode i.t. Mode Mode Mode Parameter and submenu only available at pyrometer with camera�...
Operating instructions CellaCast PX 8x Lower threshold dI . S P Upper threshold dI . r P Switch-on delay 0 – 10 s, 0�1 steps dI . d S Switch–off delay 0 – 10 s, 0�1 steps dI . d r Exit menu 14.3 OUT 2 (d2) Parameter...
Operating instructions CellaCast PX 8x 14.4 Two-colour channel (qu) Parameter Function Comments Ratio correction 80… 120 % q. E PS Pollution warning level 0�1 - 100 q. d rt Relative lower limit, two-colour tempera- 0�1 – 100 signal intensity q. l iM ture reading invalid (signal intensity) Smoothing time...
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Operating instructions CellaCast PX 8x Parameter Function Comments Check, whether threshold 2 is fallen t. L 2c below during the See chapter ATD function measuring time Timeout t. A Ut Closing of the lower menu level ATD function Opening of the lower menu level Peak-Hold q.
Operating instructions CellaCast PX 8x 14.5 Spectral channel (L1) (L2) Parameter Function Comments Correction of the radiation properties of Emissivity E . P . S the measured object (10���110%) When using protection shields, the Transmission factor value of the transmission of the used disk can be entered here�...
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Operating instructions CellaCast PX 8x Parameter Function Comments Check, whether threshold 2 is fallen See chapter ATD function t. L 2c below during the measuring time Closing of the lower menu level ATD Function Opening of the lower menu level Peak- P .
Operating instructions CellaCast PX 8x 14.6 Advanced Features (EF) Parameter Function Comments Opening of the lower menu level of the cAM* camera Screen insert tempe- c. c ouL. rature reading TBC exposure on spot weighted c. t bc. metering off average AUTO.
Operating instructions CellaCast PX 8x 15 Parameterizing When you reset/adjust the operating parameters, the instrument remains in run mode� It continues to operate, using the current parameter settings, until you have finished configuring by pressing [MODE]� 15.1 Setting parameters – general information Select main menu ►...
Operating instructions CellaCast PX 8x Confirm parameter value ► Press [MODE]� Ao .Fn Ao .Fn > The display indicates the parameter� MODE The new value has been saved and will take effect� Exit operating parameter layer ► Wait 30 seconds ►...
Operating instructions CellaCast PX 8x 17 Service functions 17.1 Reset all parameters to factory settings ► [rES . ] Select extended functions [EF] in the menu ► Press [MODE] > RES is shown in the display ► Press the ˅ key for 2 s >...
Operating instructions CellaCast PX 8x 18 Maintenace 18.1 Cleaning the pyrometer lens A soiled lens leads to wrong display of the measured value� ► Check the lens regularly and clean it, if required. • Remove dust by blowing or with a soft brush� •...
Operating instructions CellaCast PX 8x 19 Trouble shooting 19.1 No measured values are determined The CellaCast measuring system checks the validity of the measured values for each measurement and calculates the signal strength� The value for the signal strength must be > 5%� The signal strength is only displayed during casting� Parameter Calculated signal strength In [%]...
Operating instructions CellaCast PX 8x 20 Models Pyrometer Type Temp. range Application 650 - 1700 °C For measurement of liquid metals PX 83 750 - 2400 °C (discontinuous casts) For measurement of liquid metals PX 80 750 - 2400 °C (continuous casting) For measurement of liquid metals PX 81...
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On our website you will find a measurement field calculator� Select the suitable pyrometer, enter the measuring distance and the length of the measurement field and you will get the suitable measurement field course and you can see the size of the measuring spot at the relevant distance� https://www.keller.de/en/its/tools/field-of-view-calculator.htm...
Operating instructions CellaCast PX 8x 23 Device-specific technical data PX 83 Temperature range 650 - 1700 °C 750 - 2400 °C Sensor Photodiode Spectral sensitivity 0�95 / 1�05 µm Focussing range 0.3 - ∞ optic PZ 20.08 0.4 m - ∞ optic PZ 20.01 1.2 m - ∞...
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Operating instructions CellaCast PX 8x PX 80 Temperature range 750 - 2400 °C Sensor Photodiode Spectral sensitivity 0�95 / 1�05 µm Focussing range 0.4 m - ∞ optic PZ 20.01 1.2 m - ∞ optic PZ 20.06 150:1 (PZ 20.01) Distance to target-size ratio 240:1 (PZ 20.06) Resolution current output...
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Operating instructions CellaCast PX 8x PX 81 Temperature range 800 - 2400 °C Sensor Photodiode Spectral sensitivity 0�95/ 1�05 µm Focussing range 0.2 m - ∞ optic (PA 41.01) M30 Distance to target-size ratio 190:1 (PZ 41.01) Resolution current output 0�2 K + 0,03 % of selected range Resolution temperature reading Reponse time t...
Operating instructions CellaCast PX 8x 24 Field of view camera Horizontal extent of the visual filed HFOV Vertical extent of the visual filed VFOV Field of view pyrometer Optics PZ 20�01 PZ 20�03 PZ 20�06 Measuring distance HFOV VFOV HFOV VFOV HFOV VFOV...
The default settings can be found in the description of the IODD� You can find it on our website www�keller�de/en/its/mediacenter� 27 Copyright The licence information of the Open Source libraries used can be found in the media library on our website www�keller�de/its...
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