Find out more
www.honeywellanalytics.com
To ll free: 1 800 563 2967
Please Note:
While every effort has been made to ensure accuracy in this publication, no responsibility can be accepted for errors or omissions.
Data may change, as well as legislation, and you are strongly advised to obtain copies of the most recently issued regulations,
standards, and guidelines. This publication is not intended to form the basis of a contract.
301EM-20 SPECIFICATIONS
Controller
General Specification
Use
Power Requirement
Size
Weight
Distance Between Controller
and Sensor
Visual Indicators
Alarm Levels
Outputs
Relay Output Rating
Gases Detected
301IRFS
Wall mounted mechanical room controller for use with Honeywell Analytics 301IRFS and S301D2 gas sensors for up to 20 points of detection.
Four (4) onboard relays can be used to activate alarms or deactivate equipment.
22-27 VAC, 29-38 VDC, 2A max @ 29VDC
11 (H) x 8 (W) x 2.7 (D) in. (28 x 20.3 x 7 cm)
2.25 lbs. (1.02 kg)
301IRFS refrigerant sensors: Up to 200 ft. (60.9 m)
S301D2 toxic/combustible sensors: Up to 500 ft. (160 m)
Normal Operation Green LED
Alarm Level 1 Red LED
Alarm Level 2 Red LED
Alarm Level 3 Red LED
Signal Tx Blinking amber LED
Failure Indication Yellow LED
3 with high and low setpoints
4 DPDT relays (alarms and/or fault), buzzer
Three 24 VDC, 250mA (per output)
Four 4-20mA outputs
Modbus
RFS option: 24 VDC built-in red strobe
RFSA option: 24 VDC built-in red strobe & 105 dBA horn
5 A, 30 VDC or 250 VAC (resistive load)
Gases Detected Detection Range Operating Temperature Operating Humidity Range
R11, R22, R123, R125, R134A,
R404A, R407C, R410A, R507A
S301D2
Carbon Monoxide (CO) 0-250 ppm -40° to 100°F (-40° to 40°C) 0-95% non-condensing
Chlorine (Cl
Nitrogen Dioxide (NO2) 0-10 ppm -40° to 100°F (-40° to 40°C) 0-95% non-condensing
Hydrogen Sulfide (H2S) 0-50 ppm -40° to 100°F (-40° to 40°C) 0-95% non-condensing
Sulfur Dioxide (SO2) 0-10 ppm -40° to 100°F (-40° to 40°C) 0-95% non-condensing
Oxygen (O2) 0-25% -4° to 104°F (-20° to 40°C) 0-95% non-condensing
Combustibles 0-100% LEL -40° to 112°F (-40° to 50°C) 0-95% non-condensing
Ratings and Certification
Alarm Levels
Conforms to
SS01007_V1 01/11
© 2011 Honeywell Analytics
CAN/CSA C22.2 No. 61010-1
116662
ANSI/UL 61010-1
) 0-15 ppm -40° to 100°F (-40° to 40°C) 0-95% non-condensing
2
0-1,000 ppm 32° to 104°F (0° to 40 °C) 0-95% non-condensing