Function Tests, Required equipment, Overview

To simplify matters, the model Citiz with core unit "Crange" is used to exemplify through

out this chapter.

Symbolic illustration of function test equip ment.

F U N C T I O N T E S T S

9 FUNCTION TESTS

Some function tests are performed with an energized, partly opened coffee machine.

Danger of electrocution!

Mains voltage inside the coffee machine.

Do not touch any live part while performing tests.

Danger of burns!

Hot parts and water under pressure inside the coffee machine. Do not touch any hot parts while checking for leakages! Always wear protective goggles.

1)	Pressure gauge	4)	Electronic thermometer
	(EFR no. 16195)		(or digital multimeter suitable for temper
2)	Citiz pressure gauge adapter		ature measurement)
3)	Digital multimeter	5)	Timer
	(for NTC temperature sensor test)	6)	Measuring beaker
		7)	Test equipment for protective earth con
			tinuity test and protective insulation test

130Citiz service manual