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Page 28 of 105
6.10. Connecting a USB Keyboard
An optional keyboard is available from AZI (AZI P/N: 990-0230) that allows easier text
entry. It connects to the USB Type A / Host port (marked
USB
) on the back panel. The
keyboard can be used as a substitute for the alphanumeric keypad, and the arrow,
[ESC]
and
[ENT]
keys, and the keyboard function keys F1
F5 can be used to activate the soft
keys. However, the keyboard cannot substitute for the
[START]
button.
•
Unpack the keyboard.
•
Plug the end of the keyboard cable into the MAX
®
4000’s mating USB socket (marked
USB
). If other USB devices are being used, a USB hub is needed to connect multiple
devices to the MAX
®
4000.
•
When the keyboard is connected, the keyboard icon will appear in the
bottom left corner of the main screen, above the CONTRAST soft key.
Note, however, that the bar code reader also acts like a USB keyboard and only one
keyboard device can be connected to the MAX
®
4000 at a time. To use the keyboard, the
bar code reader must first be disconnected from the instrument or USB hub, and vice
versa. For more information on the bar code reader, see section
6.11. Installing the Nitrogen Purge Kit
CAUTION - Use of nitrogen or other inert carrier gas does not
create an explosion-proof system.
Some applications may require the use of a nitrogen purge to remove volatiles from the
chamber.
In addition to the Nitrogen Purge Kit (AZI P/N: 990-0046), the following materials are
required for the nitrogen purge setup:
•
Nitrogen source/cylinder or other supplied inert gas source.
•
Two-stage regulator capable of regulating pressure to 5 psi:
o
For cylinder applications: Multi-stage Gas Regulator for Compressed Air Cylinder,
VWR #55850-420 or equivalent.
o
For supplied gas sources: Matheson Gas Products Model 3471 Single Stage Line
Regulator or equivalent.
•
Tubing with a 1/8" (.31 cm) inside diameter (I.D.) and, 1/4" (.625 cm) outside diameter
(O.D.) - Vinyl tubing (VWR #63013-029), or Nalgene clear plastic tubing (Nalgene
#8000-0020, VWR #63015-368)
•
Connector, 1/8" I.D., 1/4" O.D.
