0602 2693 Testo

testo 845 Infrared measuring instrument Instruction manual en Contents General information ......................................................2 1. Safety instructions................................................3 2. Intended purpose ................................................4 3. Product description..............................................5 3.1 Display and operating elements ......................................5 3.2 Interfaces ........................................................................6 3.3 Voltage supply ................................................................6 4. Commissioning ....................................................7 5. Operation ............................................................7 5.1 Connecting probes..........................................................7 5.2 Switching on / off ............................................................8 6. Setting instrument ................................................8 6.1 Instrument configuration..................................................8 6.2 Measurement configuration ..........................................10 6.3 Degree of emission ......................................................13 6.4 Storing measurement protocols ....................................13 6.5 Printing measurement protocols....................................14 6.6 Printing current readings ..............................................14 6.7 Reading memory full ....................................................14 7. Programming ....................................................15 7.1 Installing software ..............................................................15 7.2 Connecting testo 845 to a PC ............................................15 7.3 Setting up connection ........................................................15 7.4 Opening connection............................................................16 7.5 Programming testo 845 ....................................................16 7.6 Disconnecting ....................................................................17 8. Measuring ..........................................................18 9. Care and maintenance ......................................21 10. Questions and answers......................................22 11. Technical data ....................................................23 12. Accessories / spare parts ..................................242 General information General information This chapter provides important information on the use of this documentation. This documentation contains information which must be observed in order to ensure safe and efficient application of the product. Read this document carefully and familiarize yourself with the operation of the product before putting it to use. Keep this document close to hand in order to be able to refer to it when necessary. Symbols Symbol Meaning Comments Warning Read the warning carefully and take the safety measures described Serious injury can occur if the safety measures are not taken. Attention Read the warning carefully and take the safety measures described Light injury or object damage can occur if the safety measures are not taken. Information Provides useful tips and information. , 1, 2 Handling objective Describes the objective reached by the following handling steps. Observe the order for numbered handling objectives Prerequisite Prerequisite must be fulfilled in order for a step to be carried out as described i , 1, 2, ... (Handling) step Carry out handling steps. Observe the order for numbered handling steps Text Display text Text appears in instrument display. Taste Operating key Press key. Function key Press key. - Result Describes the result of a (handling) step previously carried out. Cross reference Reference to further or more detailed information.