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On the outside and to the bottom of the oven compartment are the Sample In/Out
Flow Ports. These are used to connect the Model 302TDA to the HPLC system.
NOTE: An optional manual sample injection valve may also be located on the front
panel of the Oven Module. This is often used in the FIPA application. This option may
also be selected for GPC applications not requiring auto-sampler capabilities.
BACK PANEL
Figure 5 Back Panel of the Model 301/302 TDA
The back panel,
Figure 5,
contains the fused A/C power module. This module contains
the receptacle, a fuse holder and a voltage selector switch. The voltage is selectable for either
100, 120, 220 or 240 VAC. An additional HEATER POWER switch is located above the A/C
power module. It may either be selected for 110 or 220 VAC. The main power on/off push-
button is wired directly to the AC power supply.
The back panel also contains the analog signal input/output connector and the auto-
sampler trigger input. This includes inputs for an external UV detector, and a RI detector as well
as an output for one detector signal. Connections to the barrier strip may be made by using a
small flat-head screwdriver supplied with the instrument. The maximum level of signal inputs is
2.5 VDC. The device may be damaged by voltages exceeding 12VDC
A/C Power Module
9 pin Serial Connector
Analog Signal/Trigger Connector
Heater Power Switch
Vapor Detector Connector
