Axetris AG
LGD Compact Operating & Integration Instructions; Rev. D
10/46
1
GENERAL USER INFORMATION
1.1
LGD Compact introduction
Axetris’ laser gas detector (LGD), “LGD Compact”, is a system for the continuous monitoring of gases such as
CH
4
, C
2
H
6
, C
2
H
2
and CO
2
. Based on state-of-the-art
Tunable Diode Laser Spectrometry
(TDLS), the system
has a very high selectivity to the target gas and features an innovative, patented measurement principle without
the need for a physical reference channel. The system is based on a flow-through cell for extractive gas
measurements at ambient temperature.
Typically one system monitors one gas. Concentration
ranges are customer-specific and can cover 0-100
ppm just as well as percentage range, depending on
the gas and measurement conditions.
Calibration is factory set according to customer
application requirements - generally re-calibration is
not necessary except in cases where the customer
application conditions differ significantly from the
feasible factory calibration conditions. Offset and span
adjustments can be performed on a maintenance
basis and might be necessary due to systematic
differences in calibration and gas delivery equipment.
This can be done via the LGD Customer Frontend
available on the Axetris` homepage.
Figure 1 LGD Compact Series
1.2
General Specifications
Environmental conditions
Parameter
Unit
Value / Range
Usage
-
Interior use
Operating temperature range
°C
-10 …+65
1
Operating humidity
% r.H.
0 … 99, non-condensing
Operating pressure
mbar
800 … 1100
Storage temperature
°C
-40 … +80
Storage humidity
% r.H.
0 … 99, non-condensing
1
For application specific temperature ranges please see the specifications in the LGD Compact Preliminary Datasheet
