—A B B M E A S U R E M E N T & A N A LY T I C S | I N S T R U C T I O N | I N S/A N A I N S T/0 0 8 - E N R E V. BEndura AZ40Sensor assemblyHeater and thermocouple kitKit reference: AZ400 753Measurement made easy1 IntroductionThis publication details replacement procedures forAZ40 cartridge heaters and thermocouples(AZ400 753) fitted to Endura AZ40 sensorassemblies. Before carrying out any procedures,read Section 3. These procedures must be carriedout by a suitably-trained technician.Kit contains:• Heaters (4 x 100 W, 2 x 70 W), 2 x thermocouples• This publicationTools required• Transmitter door key (supplied withtransmitter)• Operating instruction OI/AZ40-EN*• Medium flat-bladed screwdriver• Small flat-bladed screwdriver• Anti-seize compound (suitable fortemperatures up to 200 °C [392 °F])*Operating instruction OI/AZ40-EN containsmandatory safety information and can bedownloaded from the link (above) or by scanningthis code:2 For more informationFurther information is available from:www.abb.com/analyticalor by scanning these codes:Sales ServiceEndura AZ40sensor assembly