MKIII OPERATOR’S MANUAL
79
LAMP_LLL.nnn - Lamp File
The Lamp file is created at the factory by an initial Quick Scan.
Subsequent QS scans append data to LAMP_LLL.nnn, using the first line as a reference.
Column Description
1
Julian date
2
Distance from lamp filament to PTFE diffuser
3
pmt temperature
4
Dark count
5-15
Intensities at 11 wavelengths
16
DUV calculation based on the lamp intensities
QL_LLL.nnn - Lamp File
The Lamp file is created at the factory by an initial Quick Lamp Scan.
Subsequent QL scans append data to QL__LLL.nnn, using the first line as a reference.
Column Description
1
Total amount of wavelengths measured
2
Julian date
3
Distance from lamp filament to PTFE diffuser
4
pmt temperature
5
Dark count
6
Average percentage deviation compared to top reference measurement
7-30
Corrected intensities at 12 wavelengths (for MKII)
31
Time scan finished (for MKII)
7-54
Corrected intensities at 24 wavelengths (for MKIII and MKIV)
55
Time scan finished (for MKIII and MKIV)
LAMPLLL.IRX - Lamp Irradiance File
Lamp Irradiance files, generated at the factory, tabulate the UV irradiance of the UV test lamps.
First row - lamp identification number
Second row - distance between lamp filament and PTFE diffuser
Now the file splits into 2 columns:
First column - wavelength in Angstroms from 2865A to 3630A in 0.5nm Increments.
Second column - irradiance in milli watts per square metre.
PUX, PUF, PUV, PUA: Processed UV files
First row - decimal hours from 00:00 (GMT) Header for each scan includes date, starting time
(hour), ending time (hour), zenith angle, latitude, longitude, location name, instrument # and
measurement type, Row 2 column 1 - GMT time in minutes, column 2 - Wavelength (Angstroms),
column 3 - irradiance (W/m
2
/nm or mW/m
2
/nm, depending on selection during processing).
PXL: Processed lamp files
First row - Lamp Number
Row 2 - distance in centimeters
Column 1 Row 3 - Wavelength (Angstroms)
Row 4 - irradiance (mW/m
2
/nm)
APPENDIX A BREWER DATA FILES
APPENDIX A BREWER DATA FILES
Summary of Contents for Brewer Mk III
Page 1: ...Operators manual Spectrophotometer Brewer MkIII...
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Page 29: ...MKIII OPERATOR S MANUAL 26 Figure 3 4 Brewer Spectrophotometer Tripod...
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