Axetris AG
LGD F200P2 Operating Instructions - Rev D
19.09.2018
14/60
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F. For certain applications it is therefore necessary to purge the housing with compressed air or
nitrogen. Please see Ch. 2.8 for more details.
During normal operation, the measurement cell is the only component that comes into contact with the
measurement gas. The wetted materials are inert: stainless steel, Teflon and glass, (please also refer to
TN_LGD_Wetted Materials).
2.3 Interfacing for evaluation
The standard LGD interface is a RS232 connection. Connection to a USB port is possible via an
RS232/USB adapter supplied with the system.
Analog 4-20 mA or 0-5 V interfaces will be factory calibrated upon customer request. Please see chapter
3.4.2 for the load limitation of the 4-20 mA interfaces.
Table 2
Interface Listing
Version Type
Comment
Digital
RS 232
Standard; to be used with the delivered measurement software for
evaluation (see Chapter 2.12), or with the protocol for integration purposes
(see Chapter 3.5).
USB
Via supplied RS232 adapter
Analog
4 - 20 mA
Standard
0 - 5 V
On request
To connect the system via a USB port, please only use our tested RS232/USB adapter that is
provided with the system.
Please avoid starting-up or restarting a computer when the LGD is connected to the serial
interface or through a USB port. Switching on the computer with an operating LGD device
can lead to the fact that Windows may identify the device as a serial mouse, and the LGD
cannot connect from the interfacing software.
2.4 Setting up for lab evaluation
Position the LGD F200P2 module at the location where the measurement will be carried out and where
computer, power supplies and gas delivery systems can be installed. For customer support and system
service it is ideal if the computer also can be connected to the internet.
To allow simplified connectivity for evaluation, a cable integrating both, system power supply and RS232
are provided (straight RS232 version, not crossed). The DB15 plug on the right-hand side in
Figure 3
connects to the instrument as shown in
Figure 4
, while the DB9 connector on the left-hand side in
Figure
3
connects to the computer.
Figure 3
Combined power supply and RS232 cable. For
Figure 4
Combined power supply and
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