2
Contents
1Introduction.......................................................................................... 3
1.1 MSE............................................................................................. 3
1.2 MSE highlights ............................................................................ 3
1.3 Standards.................................................................................... 4
2Interfaces............................................................................................. 5
2.1 USB interface.............................................................................. 5
2.2 RS232 interface .......................................................................... 5
2.3 Trigger in/out............................................................................... 6
2.4 Power connections...................................................................... 6
3Communications protocol.................................................................... 7
3.1 USB............................................................................................. 7
3.2 RS232 ......................................................................................... 7
4Device drivers...................................................................................... 8
4.1 USB............................................................................................. 8
4.2 RS232 ......................................................................................... 8
5Command set description ................................................................... 9
5.1 Commands.................................................................................. 9
5.2 Command structure..................................................................... 9
5.3 System commands.................................................................... 10
5.4 Configuration commands.......................................................... 10
5.5 White point references ..............................................................12
5.6 Measurement commands..........................................................13
5.7 User EEPROM commands .......................................................14
5.8 Returned results........................................................................ 15
6Measurement example......................................................................16
7Auto-ranging......................................................................................17
7.1 Introduction................................................................................ 17
7.2 How auto-ranging works ........................................................... 17
7.3Auto-range parameters .............................................................18
7.4 Auto-range in practice...............................................................18
7.5 Programming MSE for auto-ranging .........................................20
7.6 Auto-ranging recommendations................................................ 21
8MSE formulas.................................................................................... 22
8.1 Formulas ................................................................................... 22
8.2 XYZ to Yxy conversion.............................................................. 22
8.3 XYZ to CIE 1976 UCS Yu’v’......................................................22
8.4 Flicker calculation......................................................................23
8.5 Additional colour spaces ...........................................................23
9Operating mode................................................................................. 24
10 Typical spectral sensitivity of colorimeter...................................... 24
