Chamber cap 
Cap release 
Battery level indicator 
Display screen 
Navigation buttons 
Cursor control 
On/Off switch 
RS 232 to PC (not functional on NGi Luminometer)
USB to PC
Power from Charger
2.0 INSTRUMENT OVERVIEW
2.01  Parts of the 3M™ Clean-Trace™ NGi Luminometer
2.02 General Features
2.03  Charging the Battery
2.04  Switching the Instrument ON
2.05 Measurement Modes
2.06  Inserting a Test
2.07 Swab Sensor
2.08  Low Power Mode
2.09 PC Communications
2.01  Parts of the 3M™ Clean-Trace™ NGi Luminometer 
The purpose of each of the Function Buttons can change according to the menu screen being displayed. Once a 
menu is selected the button functions will be displayed at the bottom of the screen directly above each button. 
Figure 1 
Figure 2 
2.02 General Features 
The 3M™ Clean-Trace™ NGi Luminometer is a light-weight, fully portable instrument with alphanumeric LCD 
display. The instrument is for use in production areas, healthcare settings and laboratories and can be supplied 
with a carrying pouch. A separate internal Lithium Battery is used to retain information in the instruments memory, 
with regard to sample plans, test points, data and calibration setting.