Design - Siemens LDS 6 Operating Instructions Manual

Essential characteristics
• Integrated calibration adjustment with an internal reference cell
• Negligible long-term drifts of zero and span
• Dynamic background correction for varying dust loads
• Isolated signal outputs, 4 to 20 mA
• User-friendly, menu-driven operation
• Selectable time constants (response time)
• Two user levels with individual access codes for prevention of unwanted and unauthorized
operations
• Operation according to NAMUR recommendations
• Monitoring of overall optical transmission
• Remote preventive maintenance and servicing via Ethernet/modem
• Straightforward replacement of the central unit, since connections can easily be removed
• Optics housings and central unit housing free of wear and corrosion
• Easy operation with a numerical keypad and menu prompting
Certified versions for emission monitoring
The LDS 6 is available as certified instrument for emission monitoring of NH
HCl/H
For conducting regular linearity and calibration checks, test kits for ammonia, water and HCl
should be used. These kits can be ordered separately as instrument accessories. For new
analyzer orders, the NH
doubt or for already installed analyzers, please contact Siemens for spotting the correct kit
version.
2.2

Design

The gas analyzer LDS 6 consists of a central unit and up to three in-situ optics housings. The
connection between the central unit and the optics housings is established by a so-called hybrid
cable, which contains optical fibers and copper wires. An additional cable connects the
transmitter and receiver parts of the cross-duct optics housings.
Central unit
The central unit is housed in a 19" rack with 4 holders for mounting in a hinged frame in racks
with or without telescopic rails.
The LDS 6 operates as an independent unit powered by a 100-240 V AC main power supply.
LDS 6
Operating Instructions, 01/2022, A5E00295894-10
O. The certificates are issued by TÜV for Germany and MCERTS for the United Kingdom.
2
, NH
3 3
/H O and H O kits named "Version 2" must be ordered. In case of
2 2
Technical information
2.2 Design
, NH /H O, H O, HCl,
3 3 2 2
11