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Toxic & Combustible Gas Monitors
- CO + CO or NO2 or CH4 or H2 or C3H8 -
Combine a standard carbon monoxide sensor with either a second
CO sensor or Nitrogen dioxide or methane or Hydrogen or propane
sensor |
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Features of
the VA301M Stand alone dual gas monitors for toxic, combustible and explosive gases.
-
Dual Sensors
-
Two
Alarm Levels per sensor
-
2
high/low DPDT alarm relays per sensor
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Audible
visible alarms
-
Calibration
status warning
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Innovative
and compact case design
-
Easy
installation and operation
-
Remote
sensor configuration available
Explosion
proof sensors HEREl |
INTRODUCTION
The stand alone VA301M gas detector continuously monitors
for carbon monoxide
with an on-board carbonmonoxide (CO) electrochemical sensor. A second remote
sensor can be installed
up to 100 feet away to monitor
for carbon monoxide, nitrogen dioxide, propane, hydrogen or methane. The advanced
microprocessor-based VA301M system features a high quality controller, reliable
sensing technology
and a high-tech durable enclosure. The display automatically toggles between
the readings for the two gases being monitored.
Portable
Air Quality Monitor, CO, CO2 here |
 |
 |
Remote
Sensor |
Display
Option |
|
|
Specifications |
| Q1
Sensors |
Toxic
-Electrochemical (NO2 and remote CO)
Combustibles -Catalytic combustion (CH4 H2
Oxygen -Diffusion Cell |
| Q2
Sensor |
Solid
state (propane C3H8)
CO - Electrochemical (internal) |
| DISPLAY
|
optional,
LCD |
|
Visual Indicators |
Low
alarm - distinct RED LED
High alarm - Distinct RED LED
Failure Indication : Yellow LED
Normal Operation: Green LED |
|
Relay Output Rating: |
5A,
100Vdc or 250 Vac (resistive load) |
|
†Audible Alarm: |
65 dBA at 3 feet (1
metre) |
|
Outputs: |
Alarm
relay high and low 2 x SPDT
per zone |
|
Operating Humidity Range: |
0 - 95%
RH, non-condensing |
|
Operating Temperature Range: |
32°F to 100°F (0°C to 40°C) |
| Certifications |
Certified to UL and CSA standards |
| Dimensions |
8.4 in.(H) x 5.3 in.(W) x 2.25 in.(D) (21.3
cm x 13.4 cm x 5.7 cm) |
| Enclosure |
IP54 |
| Power |
17-27 VAC,
24-38VDC, 250 mA, Optional transformer for 110VAC |
|
| |
|
Gases Detected |
| Gas
Detected |
Range |
Sensor
Type |
Q1-sensor
(3% accuracy)
(Humidity 15-90% non condensing ) |
Q2
sensor (5% accuracy)
(Humidity 15-90% non condensing )
|
| CO (Carbon
Monoxide) |
0-250
ppm(std)
|
|
| NO2 |
0-10
ppm |
|
| H2 |
0-100%
LEL |
|
| CH4
(methane) |
0-100%
LEL |
|
| C3H8
(propane) |
|
0-100%
LEL |
| CO
(internal sensor) |
|
0-250
ppm |
|
| |
|
Ordering Information |
| Model |
Description |
Price |
 |
| VA301MQ2-CO |
Complete gas monitor Q2
type. carbon monoxide 0-250 ppm |
$395.00 |
 |
| VA301MQ2-CO-CO |
Complete gas
monitor Dual sensors CO-CO 250 ppm |
$670.00 |
| VA301MQ2-CO-NO2 |
Complete gas
monitor Dual sensors CO - NO2
Carbon monoxide 0-250 ppm Nitrogen Dioxide
0-10 ppm |
$705.00 |
| VA301MQ2-CO-C3H8 |
Complete gas monitor Dual
sensors CO - C3H8
Carbon monoxide 0-250 ppm Propane
0-100% LEL |
$600.00 |
| VA301MQ2-CO-CH4 |
Complete gas monitor Dual
sensors CO - CH4
Carbon monoxide 0-250 ppm Methane
0-100% LEL |
$600.00 |
| VA301MQ2-CO-H2 |
Complete gas monitor Dual
sensors CO - H2
Carbon monoxide 0-250 ppm Hydrogen
0-100% LEL |
$600.00 |
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|
|
| /DIS |
configured for
mounting in ductwork |
$90.00 |
| /ECLAB |
NEMA 4
enclosure for remote sensor |
$100.00 |
| DT |
Duct type mounting for
remote sensor |
$155.00 |
| /TX110 |
Transforme for
24volts AC to 110V AC power |
$50.00 |
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