Ci7XX0 BENCHTOP SPECTROPHOTOMETER
26
Transmission Measurements (excludes Ci7500 series)
A transmission indicator illuminates on the front panel based on your selection in the software.
The transmission sample holder is designed to mount inside the transmission compartment. It is
used to measure thin films at both the sphere (total transmission) and at the lens (direct
transmission). Direct transmission is 25 mm measurements only. Each transmission kit contains:
four sample stops and clamps, four aperture plates with white reflective ring, one transmission
white plaque, one black plastic blocking panel, and one cuvette sample holder. Choose the sample
stop and clamp appropriate for your application.
Before taking a transmission measurement, make sure the instrument is calibrated for the
measurement mode and set the instrument to transmission mode using your application.
Measurement Notes:
• Liquids are measured using the cuvette sample holder
• Always make certain that the sample is flush and parallel to the opening in the sphere or
the lens
• If transmission white plaque gets soiled, it must be replaced
• Close the cover when measuring
• Use aperture plates with white reflective ring
• Use the transmission white plaque, not smooth glossy calibration tile
Transmission Sample Holder Description
Total Transmission Measurement
Total measurements are taken with the sample positioned between the stop and clamp toward the
sphere. Total Transmission is appropriate for measuring translucent samples which exhibit some
scattering of the light. A total transmission measurement will make certain that all transmitted
light is measured for an accurate reading.
1. Mount the appropriate aperture plate (with white reflective ring) to the measurement port at
the front of the instrument.
2. Position the transmission white plaque on the sample holder as previously explained in the
calibration section.
mm, 17 mm and 25 mm
Carriage base thumb screw
To Next Page
Loading...
Need help?
General
