GB - User’s manual C.
ATTENTION An infrared camera is a sensitive optical measuring device. Pay special attention to the following points: Never aim the camera towards the sun or other source of intense thermal radiation (e.g. welding, cutting, and similar operations). If parts of the camera are damaged or present problems following failure to heed the warnings listed above, neither the manufacturer nor the distributor shall be held liable, and all costs incurred shall be borne solely by the operator.
CONTENTS 1. GETTING STARTED ....................................................................................................... 5 1.1. Elementary precautions ............................................................................................ 5 1.1.1. Never aim the camera towards the sun or other source of intense thermal radiation ........................................................................................................ 5 1.1.2. Avoid exposing to dust with the lens flap open......
5. BACKUP AND RECALL OF USER CONFIGURATIONS ............................................. 23 5.1. Where are the configurations saved? ..................................................................... 23 5.2. Saving the current setup of the camera .................................................................. 23 5.3. Recalling a saved setup .......................................................................................... 23 5.4. Deleting a saved setup ........................................
1. GETTING STARTED 1.1. Elementary precautions 1.1.1. Never aim the camera towards the sun or other source of intense thermal radiation Direct exposure to sunlight or other strong thermal radiation can impair the operation of the camera and make the infrared sensor partially or totally inoperative for as long as several months. We therefore recommend closing the lens flap when the camera is not in use, to avoid any accidental exposure. 1.1.2.
1.2. Powering the camera The camera accepts AA batteries of two types: - either alkaline batteries - or Ni-MH rechargeable batteries. The latter must be recharged with an external charger. When the batteries are withdrawn, the internal clock has enough power for 15 hours. The batteries are inserted through the end of the handle. Open the cover using a coin while pressing down on the locking tab: 1.3.
1.4. Organization of the display In principle, the camera starts up: in its main display, in continuous acquisition mode, with the setup loaded when it was last switched off. However, after the batteries have been withdrawn, when the camera is started up, a "Battery Management" menu is displayed. It can be displayed on demand, by keeping the F2 key pressed when the camera is started up.
1.4.2.
1.4.2.1. Status bar This bar tells the operator the current operating mode of the camera.
1.4.2.3. Display of the measurements This space is used to display the measurements of the various cursors, along with the Bluetooth measurements when a peripheral measurement device is connected and when the measurement is selected for display. Measurement of the surface cursor Bluetooth measurements (only one has been validated for display) See § 2. Measurement campaign and § 6.3.10. Display of Bluetooth measurements on the main screen 1.4.2.4.
1.4.3. Displaying the menus The menus are accessed by pressing the F1 key with the function the F1, F2 and F3 keys. . When a menu is displayed, new functions are assigned to Select an item in the menu using the arrow keys. The selected items appear in yellow. The F2 key is used: -either to open the corresponding sub-menu -or, in some cases, to modify the parameter represented. The menus form a tree structure which is recalled in the title of the window.
1.5.3. Changing the units of temperature and of distance From the Main/Parameters/Adjustments menu, validate the item opposite to select the unit in which temperatures or distances are displayed: -the temperature is displayed in degrees Fahrenheit (°F) or Celsius (°C), -the distance in feet (ft) or metres (m). 1.5.4. Changing the function associated with the trigger of the camera 4 functions are associated with the trigger.
1.5.7. Changing the image backup location The images are saved to a working directory which can be selected by the operator in the Main/Files menu, by validating the item opposite. The working directory must be located on the micro SD card, which must be present in the device. A default directory, « /media/sdcard/images », is defined.
2. MEASUREMENT CAMPAIGN By default, no measurement cursor is selected (selection of the item in the Main/Display/Cursor menu), and the camera produces only infrared images. 2.1. Estimating the temperature of an object without a cursor It is possible to evaluate a temperature from the information of the colour palette.
2.6. Displaying points at the same temperature in the image In the Main/Display/Cursor menu, choose the Isothermal cursor it marks with another palette of colours the points at the same temperature to within a given tolerance. Selection of this mode requires two validations of the menu item with the F2 key: one to activate selection of the colour representing the temperature (Up/Down keys to scroll through the colours) and one to validate the choice and start the function).
3. MORE PRECISE MEASUREMENT CAMPAIGN 3.1. Good practices Make the measurement in the central zone of the screen. Aim head on, not at an angle. Measure scenes that are large enough. Avoid point-like scenes. Following a variation of ambient temperature, wait for the camera to stabilize. If the storage batteries have warmed up during charging, wait before putting them back in the camera. 3.2.
3.2.2. Using the user compensation for the influencing factors This calculation mode is necessary when the measurement conditions are significantly different from the calibration conditions (emissivity, relative humidity) and the operator wants accuracy. When user compensation is selected, the various parameters can be adjusted: - emissivity: it is necessary to choose from a list of materials or enter a value.
4. SAVING AND RECALLING IMAGES If there is a micro SD memory card in the drive, it is possible to store, then recall the current image and measurements displayed. 4.1. How are the image files named? The camera has two objectives, one for infrared images, the other for entering a photograph in the visible domain. In consequence, when an image is recorded, two files are created, one for the infrared image, named "yyyymmdd_hhmmss_IR.
As the case may be, 1, 2, or 3 files are saved: 1 file for a derived image (same date of acquisition) with no headset connected (the visible image already exists, only the IR file is created) 2 files for the creation of an image from a new acquisition (new date of acquisition) with no headset connected (the IR and visible image files are created) 3 files for the creation of an image from a new acquisition with a vocal file 4.3.
4.6. Recalling an image An image is recalled from the Main/Files/Images menu, provided that the micro SD card is in its slot. The file manager lists only infrared images generated by the camera bearing a name in the form yyyymmdd_hhmmssX_IR.PNG, along with the folders, to allow browsing in the tree of the SD card. A preview of the image is provided, and the Right/Left keys can be used to go from the infrared display to the associated visible image.
4.7. Playing back a vocal remark A vocal message is played back using the Bluetooth headset, which must be connected to the camera (see § 6.2.2. How to connect a headset). To play back the vocal message associated with an image, the image must be recalled (see § 4.6. How to recall an image) and the F3 the file. key used to open the window of information on The F2 key then takes on the following functions back the vocal message or to stop playing it back : to play . 4.8.
4.9.2. • Via the USB cable The camera, in normal operation, has a USB port of the type used for mass storage: when the camera is connected to the PC by the USB cord, the content of the micro SD memory card can be accessed directly by the PC; the image is transferred by cut or copy and paste from one folder to another. • If the camera's file manager is open and the PC modifies the content of the SD card, the file manager must be reopened or the camera rebooted for the camera to apply the changes.
5. BACKUP AND RECALL OF USER CONFIGURATIONS The setup files contain a complete backup of the current parameters of the camera, enabling the operator to return to an operating mode defined earlier (user setup) or to a predefined setup (factory setup). The setup stores the list of Bluetooth peripherals connected and their statuses, to allow their re-use. 5.1. Where are the configurations saved? Like the images, the setup files are saved in the micro SD card.
5.4. Deleting a saved setup A configuration file is deleted from the Main/Setup/User/Files menu, by means of the file manager, which lists all of the configuration files (extension .CFG) found in directory « /media/sdcard/config/ ». When the file has been selected (Up/Down keys), a press on F1 activates the deletion. A message requesting confirmation appears and must be accepted for definitive deletion of the file to take place. 5.5.
6. BLUETOOTH FUNCTION 6.1. Activating/Deactivating the Bluetooth function 6.1.1. Activating Bluetooth To prolong battery life, the Bluetooth function can be deactivated (in fact it is the default). In this case, it is not powered and so consumes no energy. To use this function, you must first activate it from the Main/Parameters/Bluetooth menu by setting the Activation item to "On" (validate the item with F2 Up/Down to change the value, and F2 entry).
When the item has been selected in the Main/Parameters/Bluetooth menu, validation by F2 makes it possible to choose the "New..." value (Up/Down arrows) and another validation by F2 applies it. The pairing starts; after a few seconds, the connection is made. The menu item changes: the name of the headset is displayed and its value becomes "Connected". 6.2.2.2. When the headset is already known If the headset is known, there is no need for pairing simply power up.
6.3.3. What peripherals does the camera recognize? In the current version, the camera recognizes the following instruments: ASYC IV multimeters: MTX 3292/3BT (1 measurement read) current clamps: F607 (3 measurements read) current clamps: F407 (3 measurements read) Chauvin Arnoux BLE instruments: C.A 1246, C.A 1821 … 6.3.4. Connecting a Bluetooth measurement peripheral For a measurement peripheral to be connected, the Bluetooth function must be activated (see § 6.1.
6.3.7. Changing the frequency of reading of a Bluetooth peripheral From the peripherals manager (above), it is possible to change the reading period of the selected peripheral: the Right arrow is used to start the entry of a new reading period. The period is displayed on a blue ground with the symbol indicating that the Up/Down arrows can now be used to change its value. The F2 the F3 6.3.8. key is then used to validate the entry, while key or the Left arrow cancels it.
6.3.9. Using a Bluetooth measurement as an influencing parameter The three influencing quantities taken into account in the correction of the thermograms are the ambient temperature, the distance from the target, and the ambient relative humidity. If you have a Bluetooth sensor compatible with the camera and capable of making one of these measurements, the value read can be used in the calculation of the correction for the influencing parameters.
6.3.10. Displaying the Bluetooth measurements on the main screen As described above, it is possible to assign a use to measurements. If a measurement is "Displayed" or "Influence", it will appear in blue on the last line of the measurement zone of the screen (unless the profile cursor is activated, because of lack of space). If the number of measurements is too large, they are not all visible in continuous acquisition.
7. UPDATING THE FIRMWARE OF THE CAMERA 7.1. Where can the firmware version of the camera be read? The current version of the camera's firmware is available from the "Main" menu by validating with F2 the item . The version number appears on the "Soft version:" line of this menu. 7.2. How update the firmware? Software update is available on our website http://www.chauvin-arnoux.com, under the heading C.A 1954 support. If an update is available on the website, please download and install it.
8. ARE YOU HAVING DIFFICULTIES? 8.1. The IR image I obtain is solid-colour 8.1.1. The palette of colours is frozen Make sure that the low and high temperature limits of your palette are consistent with the temperature range of your scene. To check this, unlock the palette (see § 2.7. Freezing the colours representing the temperatures). 8.1.2. Inconsistent "user" influencing parameters The entry of an incorrect emissivity value can lead to measurement errors of this type.
8.7. My Bluetooth measurements are not displayed or are not refreshed in the measurements manager Make sure that acquisition has not been stopped. To preserve consistency between the image displayed and the Bluetooth measurements read on the peripherals at the time of acquisition, the measurements are refreshed only when there is a new acquisition. If a peripheral is connected, but acquisition has been stopped, its measurements will not be displayed until there has been another acquisition.
9. SERVICING AND MAINTENANCE 9.1 Cleaning the housing and screen of the camera Cleaning the housing: to avoid any spattering on the lens, you must close the camera's lens protection flap. Use a cloth moistened with soapy water or with alcohol. Cleaning the screen: to avoid scratching, use a soft, lint-free cloth. WARNING! The camera is not immersion-proof. 9.2 Cleaning the infrared optics The infrared lens has a very fragile coating.
10. WARRANTY Our warranty applies, except as otherwise stated, for two years after the date of availability of the equipment. Extract from our General Terms of Sale, communicated on request.
11. DELIVERY CONDITION The C.A 1954 thermal camera is delivered in a carrying case with: Battery charger 4 Ni-MH batteries - 1.
APPENDIX I – Menu tree (1/3)
APPENDIX I - Menu tree (2/3)
APPENDIX I - Menu tree (3/3)
APPENDIX II – Emissivity table Material Specification Temp. °C Spectrum Emissivity Stainless steel 18-8 Stainless steel 304(8Cr, 18Ni) 25 0.16 215～490 0.44～0.36 Stainless steel 310(25Cr, 20Ni) 215～520 0.90～0.97 Nickel alloys Nickel-chromium alloy wire (shiny) (refractory) 50～1000 0.65～0.79 Nickel alloys Nickel-chromium alloy 50～1040 0.64～0.76 Nickel alloys Refractory nickel-chromium 50～500 0.95～0.
APPENDIX III - Technical specifications Description IR detector IR imaging performance Focusing Visible image Presentation of the images Characteristics C.A 1954 Type Spectral range Resolution NETD Frequency Objective IFOV (spatial resolution) Min. focal distance Adjustment Built-in digital video Illuminator Min. focal distance Images displayed Video output LCD screen Freezing of image Storage of files UFPA microbolometer 8~14µm 120 x 160 < 80 mK at 30°C 9 Hz 28° x 38 (typical)° 4.1 mrad 0.
X04696A02 - Ed.
