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Refrigerants,
Toxic & Combustible Gas Monitors |
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Features of the
VA301EM20 gas safety monitors
for Refrigerants.
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R11, R22, R123, R125, R134a, R404A, R407C, R410A, R507A, Blends, Toxics & Combustibles
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Operates with up to 20 remote sensors
- Dedicated remote annunciator panel
- RS 485 Modbus communication
- 4 fully programmable relays
- Three 24 VDC alarm outputs<
- Four 4-20 mA outputs (one per sensors)
- 2 emergency break-glass switch inputs
- Built-in strobe & horn (105dB) available
- Stand alone or network operation
Explosion
proof sensors HEREl |
Introduction to the 301EM multi point gas monitoring system
Easily configured to meet ASHRAE 15, B-52 and
International Mechanical Code requirements, the
301EM is commonly used to optimize gas detection
in mechanical and chiller rooms. A full complement
of sensors (including toxic, oxygen, combustible
gases and a full line of refrigerant sensors), horns,
strobes and remote panels provide added flexibility
to suit a variety of gas detection system solutions.
ASHRAE No 15-2001 Mechanical Standard and
B-52 Code Compliance
The ASHRAE and B-52 security standards have
been established to minimize risk and protect
the safety of mechanical room personnel and
the environment at large. Available in a special
configuration, the 301EM mechanical room
controller has been carefully designed to meet
and even exceed these rigorous standards. The
Vulcain 301EM can be configured to offer automatic
fan, horn and strobe activation in addition to
manual fan activation. Latching relay for manual
alarm recognition, silence key for manual horn
deactivation, built-in 24 Vdc outputs for horn
operation, and 2 breakglass switch accessories
for manual alarm activation ensure optimal
performance. |
Specifications |
Power Requirement |
22-27 Vac, 29-38 Vdc, 2A max @ 29Vdc |
Size |
28 x 20.3 x 7 cm (11.02 x 7.99 x 2.73 in.) |
Weight |
1.02 kg (2.25 lb.) |
Distance Between 301IRFS refrigerant sensors: |
Up to 200 ft. / 60.9 m |
Controller and Sensor S301D2 toxic/combustible sensors: |
Up to 500 ft. / 152.4 m |
Visual Indicators |
Normal Operation
Alarm Level 1
Alarm Level 2
Alarm Level 3
Signal Tx
Failure Indication |
Green LED
Red LED
Red LED
Red LED
Blinking amber LED
Yellow LED
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Alarm Levels |
3 with high and low setpoints |
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Outputs |
4 DPDT relays (alarms and/or fault), buzzer
Three 24 Vdc, 250 mA (per output)
Four 4-20 mA outputs
Modbus
RFS option: 24 Vdc built-in red strobe
RFSA option: 24 Vdc built-in red strobe & 105 dBA horn |
Relay Output Rating |
5 A, 30 Vdc or 250 Vac (resistive load) |
Ratings and Certifications |
Certified to CAN/CSA C22.2 No. 61010-1
116662
Conforms to ANSI/UL 61010-1 |
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Gases Detected |
Gases Detected Gases Detected
Accuracy is +_ 3%
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Detection Range |
Operating Temperature |
Operating Humidity Range |
301IRFS for Refrigerants |
R11, R22, R123, R125, R134A, R404A, R407C, R410A, R507A |
0-1000 ppm |
0 to 40 °C (32 to 104°F) |
0-95% non-condensing |
The 301EM can also be used with the following S301D2 explosion proof sensors |
Hydrogen Sulfide (H2S) |
0-50 ppm |
-40 to 40°C (-40 to 104°F ) |
0 - 90% RH, non-condensing |
Carbon Monoxide (CO) |
0-250 ppm |
-20 to 40°C (-4 to 104°F) |
0 - 90% RH, non-condensing |
Chlorine (Cl2) |
0-15 ppm |
-20 to 40°C (-4 to 104°F) |
10 - 95% RH, non-condensing |
Oxygen (O2) |
0-25% |
-20 to 40°C (-4 to 104°F) |
5 - 95% RH, continuous |
Nitrogen Dioxide (NO2) |
0-10 ppm |
-20 to 40°C (-4 to 104°F) |
15 - 90% RH, non-condensing |
Sulfur Dioxide (SO2) |
0-10 ppm |
-20 to 40°C (-4 to 104°F) |
15 - 90% RH, non-condensing |
Combustibles - Methane |
0-100% LEL |
-40 to 50°C (-40 to 122°F) |
0 - 80% RH, non-condensing |
Combustibles - Hydrogen |
0-100%LEL |
-40 to 50°C (-40 to 122°F) |
0 - 99% RH, non-condensing |
Combustibles - Propane, Ethanol |
0-100% LEL |
-40 to 75°C (-40 to 167°F) |
0 - 99% RH, non-condensing |
Combustibles - n-Pentane |
0-100% LEL |
-40 to 75°C (-40 to 167°F) |
0 - 99% RH, non-condensing |
Combustibles - Toluene |
0-100% LEL |
-40 to 75°C (-40 to 167°F) |
0 - 99% RH, non-condensing |
Combustibles - n-Decane |
0-100% LEL |
-40 to 75°C (-40 to 167°F) |
0 - 99% RH, non-condensing |
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Ordering Information |
Model |
Description |
Price |
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VA301EM-RFSA |
Expansion Module w/ three 24VDC Outputs, four Relays, four 4-20mA,
Strobe Light & Horn (sensor not included) |
$1720.00 |
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VA301IRFSxxx |
Each sensor xx = refrigerant gas to be detected from above list ( you need at least one to make an operational system ) |
$1490.00 |
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Call for pricing on other S301D2 sensors |
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Optional Accessories |
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/VA201T50 |
transformer for
110V AC power |
$50.00 |
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