Direct Detect® Spectrometer User Guide
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7
Direct Detect® Spectrometer Parts and Functions
7.1 General Technical Features
7.1.1 The Instrument
The Direct Detect® spectrometer is a small compact FTIR spectrometer designed for
measuring IR absorbance.
Figure 5. Direct Detect® spectrometer
5A
5B
5C
5E
5G
5F
5D
Definition
5A Instrument module (with integrated electronics and optics)
5B Slot for Netbook stand tab
5C Direct Detect® automated card holder
5D Card insertion alignment arrow
5E Status light
5F Sample drying indicator light
5G Card insertion light
7.1.2 The Direct Detect® Automated Card Holder
The automated card holder (5C) accepts only 4-sample Direct Detect® Assay-free cards.
The top of the card holder module contains two LED lights located at the bottom right
corner (5F and 5G as viewed from the top).
The bottom LED light (5G) is green whenever an Assay-free card is inserted properly.
The top LED light (5F) is yellow whenever the drying system heater and fan are active.
Periodically (default setting is 15 minutes) the software will initiate a reference measure-
ment which must be performed without a sample card inserted in the card holder. If a card
is found in the card holder, the software will prompt you to remove it.
