Discovery TGA™ Getting Started Guide
Page 40
10
Use the alignment gauge (shown below) to ensure that the length of the tare tube extends 0.381-cm
(0.150-inch) below the cooling plate. Push it up or pull it down to adjust the length.
Figure 21
Alignment gauge. The long edge (shown here as the left edge) is used for TGA 55 and TGA
550, and the short edge (shown here as the right edge) is used for the TGA 5500.
11
Hang the desired sample pan on the hook. Choose the same type of pan that will be used for your
experiments.
12
Replace the black tare cap over the tare side pan. Tighten the three screws holding the tare cap on.
Installing the Upper Reflective Assembly and Sample Hang-Down Wire on the
TGA 5500
Before you can install the sample hang-down wire, you must install the sample tube (upper reflective
assembly) that surrounds the wire. Follow these steps:
1
Locate the upper reflective assembly in the accessory kit.
2
Lower the furnace to its fully open position.
3
Cover the furnace opening with a flat object (such as a business card) to prevent anything from falling
inside.
4
Holding the assembly by the tube section, install the upper reflective assembly by inserting it straight
Place against bottom surface of copper cooling plate
Aligns with bottom of tare tube (TGA 550 and 5500)
Aligns with bottom of baffles (TGA 5500) / tube ceramic
(TGA 55 and TGA 550)
Aligns with bottom of sample pan (TGA 55 and 550)
Aligns with bottom of hang-down hook (TGA 55 and TGA 550)
Aligns with bottom of sample pan (TGA 5500)
Aligns with bottom hang-down hook (TGA 5500)
