GDS-78XP Process Gas Monitor
The GDS-78XP Process Gas Monitor
is designed to provide monitoring for
gas sample streams compatible with
standard electrochemical, infrared or
photoionization sensors. For gases that
require electrochemical sensors, the
stream must contain at least 20% oxygen.
If the target gas can be detected by an
infrared or photoionization detector, then
the gas stream is not required to contain
oxygen. The GDS-78XP combines
the industry-proven reliability and
performance of GDS Corp GASMAX
gas monitors with high quality sample
conditioning and flow measurement
components to deliver cost-effective
solutions for process monitoring
applications.
GASMAX Gas Monitor
The heart of the GDS-78XP is a
GASMAX gas monitor configured for
sample flow monitoring. The popular
GASMAX family includes monitors
that are loop-powered, DC-powered or
wireless 900Mhz or 2.4 Ghz. Wireless
units can be battery powered when used
with toxic gas sensors, or DC powered for
use with infrared, catalytic bead or PID
sensors.
A magnetic switch menu-driven
operator interface eliminates all analog
potentiometers and allows setup and
calibration without hazardous area
declassification. When used with DC-
powered systems, electrochemical sensors
include temperature compensation and
local heater for increased accuracy in low
temperature applications.
Flexible Sample Conditioning
The GDS-78XP includes a high quality
stainless steel sample conditioning system,
which includes a stainless steel inlet valve
and high quality glass flowmeter. For
high or variable pressure applications the
GDS-78XP can be configured to include
an adjustable regulator and stainless steel
coalescing filter or combination coalescing
and membrane filter with sample bypass
loop. Inlet pressure can vary between 1.0
psig and 3000 psig, depending on sample
conditioning option selected.
Designed for XP Environments
GASMAX monitors are certified for use
in Class I Div 1, Groups B, C & D areas
when monitoring non-reactive gases. When
measuring reactive gases such as chlorine
or chlorine dioxide, a loop-powered
GASMAX / EC must be specified and used
with an intrinsically safe barrier for XP
applications.
The GDS-78XP is available with optional
NEMA 4x non-metallic and stainless steel
enclosures.
FEATURES
- Designed for installation in Class
I, Div 1 Hazardous Locations
- Reliable electrochemical sensor
technology for toxic gases
- Long life infrared sensors for
carbon dioxide and hydrocarbons
- Stainless steel coalescing filter
removes particulate and moisture
- Built-in flow meter provides visual
confirmation of sample flow rate
- Industry-proven GASMAX family
monitor with large LCD display
- Auto-recognition of infrared, VOC
and toxic gas Smart Sensors
- Prompted calibration procedure
and cal port for easy maintenance
- Optional 3x 5A SPDT alarm relays
and MODBUS slave interface
- Optional explosion proof flow
switch for critical applications
- Available with NEMA 4x stainless
steel and non-metallic enclosures
- Loop-powered Intrinsically Safe
option for reactive gases
- Calibration in hazardous area only
requires simple magnetic wand
- Manufactured in USA
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