ANALOX 1371 MK 2 SURVEYOR CARBON DIOXIDE MONITOR
1371-810-03 User Manual, August 2007
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INTRODUCTION
The ANALOX 1371 SURVEYOR provides a clear Digital Display of Carbon Dioxide
concentration in a gas sample. It can be employed either as an ambient monitor, using its
internal pump to draw the sample, or as an 'On-Line' monitor if the gas to be checked is
flowing through a pipe.
The Instrument uses a 'State-of-the-Art' Infra-Red Analyser, with no electro-mechanical moving
parts, designed to meet the demand for accurate measurements of Carbon Dioxide, where
performance and quality are essential.
Ranges of measurement available are as follows :
Range
Part Number
0-100%
SA1 D03 BG88 N002
0-20%
SA1 D03 BE87 N002
0 - 10%
SA1 D03 BD86 N002
0 - 5%
SA1 D03 BC89 N002
0 - 2%
SA1 D03 BB90 N002
0 - 1%
SA1 D03 BA91 N002
0-0.5%
SA1 D03 SA92 N541
Two completely independent, user adjustable alarm circuits are incorporated, the setpoints of
which are accessible on the front panel, and adjustable over the full range of the Instrument.
Both audible and visual indication is provided at the onset of an alarm condition and volt-free
relay contacts are available for connection of external warning devices.
The Instrument is housed in a high impact, glass reinforced polycarbonate wall mounting
case and is sealed to IP65, when the hinged transparent front cover is closed. This front cover
also incorporates a simple locking device to discourage unauthorised adjustments of the front
panel controls. The Instrument case has been coated with a double layer of conductive
material to provide EMC Compliance - ie Immunity from external Radio Frequency Emissions
and containment of any internally generated RF. Mains input filters are also fitted to avoid
conducted interference.
Installation is straightforward only requiring three fixing points and all external electrical
connections are made to screw terminals.
