PerkinElmer TGA 4000, Инструкция по установке и эксплуатации оборудования

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TGA 4000 Hardware . 57
Features of the TGA 4000
The TGA 400 has a high-performance balance and furnace for maximum accuracy and
precision. The top-loading balance allows easy sample loading and unloading. The balance is
protected from sample debris by a balance purge gases, and thick stainless steel wall act as
a heat sink to thermally isolate the balance from the furnace. The TGA 4000 has a top-
loading microbalance. The sample pan is placed onto the sample holder which connects to
the microbalance via a very thin rod.
The furnace has a large isothermal zone, which keeps your samples at the same temperature
as the furnace throughout a temperature program. This increases reproducibility of
temperature measurements. The compact ceramic furnace is inert and corrosion resistance,
enabling the use of a wide range of reactive gases. The built-in mass flow controller monitors
and controls the purge gas flowrates and pressures, and can switch automatically between
sample gases using Pyris software.
The rapid cooling rate of the furnace is achieved by mounting the furnace in a liquid-cooled
jacket. To reduce the heating power at high temperatures, the cooling jacket is nickel plated.
You can use various types of cooling liquids in the integrated cooling system. During
operation, the cooling liquid must flow through the heat exchanger at a constant flow rate
and the cooling liquid should be at a temperature such that there is no condensation inside
the analyzer. The recommended cooling device is the Chiller (P/N N537-0220/N537-0221,
120 V and 220 V, respectively).
Forced air cooling is also possible. A small air pump is mounted inside the instrument and
activated by clicking the Cooling Air button on the control panel. Forced air and liquid
cooling reduces cycle times, improving productivity.
Pyris supports the AS 6000 autosampler accessory. The autosampler allows testing of up to
45 samples. The unique two-piece carousel allows removal of one section while the other is
in operation. Combined with the Pyris Player software, the runs are entirely automated. You
can create play lists that contain multiple methods for analyzing one sample; multiple
samples to be analyzed by one method, and many ways to perform postrun data analysis.