GDS-68XP Process Gas Monitor
The GDS-68XP H2S Monitor for Low
Oxygen Applications uses sequencing
technology to directly measure hydrogen,
hydrogen sulfide, mercaptans or other
gases in a stream that contains low levels
of oxygen. By alternatively applying
sample gas and clean purge air to the
sensor, the GDS-68XP delivers longer
sensor life and significantly reduces the
amount of sample gas released to the
atmosphere.
Today, most H2S measurements are
monitored either by lead acetate tape
analyzers or once-a-day colorimetric
gas detector tubes. “Pull tubes” are easy
to use, but require on-site personnel
and can be notoriously inaccurate. In
addition, one sample per day may not
be sufficient to track changes in the
levels of H2S or other gases brought on
by variations in temperature or process.
Tape units are more accurate, but require
continuous maintenance and monthly tape
replacement.
The GDS-68XP offers an alternative to
expensive analyzers while providing up to
96 samples per day. Programmable sample
and purge intervals allow the user to
determine the optimum balance between
sample rate, sensor life and sample gas
released to ambient air.
The GDS-68XP contains a microprocessor
controlled sequencer that manages the
sample / purge cycle and maintains the
sampled output during purge air operation.
An integrated dual-channel GASMAX II
gas monitor provides the sensor interface
and signal conditioning, calibration,
continuous reading display and optional
alarm relays with MODBUS slave
interface.
An internal real-time clock and event
log time-stamps calibration and alarm
events for later review, while the menu-
driven operator interface eliminates all
analog potentiometers and allows setup
and calibration without hazardous area
declassification.
The GDS-68XP can be configured for
‘draw from ambient’ or ‘positive pressure’
modes of operation. An integrated Run /
Cal valve and user prompted calibration
procedure make routine maintenance and
field ‘bump tests’ quick and easy.
Reliability in Hostile Environments
Utilizing a long-life brushless DC pump,
the GDS-68XP H2S Monitor is designed
for installation in hazardous areas rated
Class I, Div 1. For low temperature
applications where highest accuracy
and response are needed, an optional
heater can be included if an enclosure is
specified.
FEATURES
- Designed for use in Class I, Div 1
Hazardous Locations
- Periodic measurement on intervals
from 5 minutes to six hours
- Reliable electrochemical sensor
technology for accurate readings
- Automatic overrrange detection
lenghtens sensor life
- Built-in flow meter provides visual
confirmation of sample flow rate
- Prompted calibration procedure
and cal port for easy maintenance
- Accepts sample lines up to 100 ft
in length
- Optional 3x alarm relays and
MODBUS slave interface
- GASMAX auto-recognition of
Smart Sensors
- High quality diaphragm pump with
24VDC brushless motor
- Calibration in hazardous area
requires simple magnetic wand
- Manufactured in USA
APPLICATIONS
- Gas Pipeline Monitoring
- Water / Wastewater Treatment
- Custody Transfer Compliance
- Scrubber Breakthrough
- BioGas Digesters
Natural Gas Station with GDS-68XP Odorant Monitor
GDS-68XP sequence controller
Purge Air Inlet Box
NEWS & CASES
) Reviews |
Write One
Newsletter
My Orders
Shopping Cart
