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B5-NO2-10P-O-X
ACI | Part Number: B5NO210POX
B5-NO2-10P-O-X Technical Data
Supply Voltage VDC
24 VDC nominal (+18 to 30 VDC) (Q5: AC Power must not be grounded)
Supply Voltage VAC
24 VAC nominal (+15 to 24 VAC, AC Power must not be grounded)
Fuse Protection
0.750A Polyswitch; (Resets after fault is cleared & power to circuit is removed)
Supply Current and Power Consumption
0.3A maximum, 8.4 VA
Maximum Load Impedance
4-20 mA Output: 600 Ohms maximum
Communication Protocols
RS-485 Serial BACnet MS/TP (Master and Slave; Default: Master)
Communication Baud Rates
9600, 19200, 38400, 76800 Bits/Second (Default: 38400)
Factory Calibration Range
See Gas Sensor Selection & Specification Table on back of data sheet
Display
LCD Graphic Display with backlight (Displays: TWA, STEL and Concentration)
Keypad
Three Capacitive Touch sensing keys
Relays, Contact Type and Relay Contact Ratings
Three, SPDT (Form C) Dry Contacts and 1.0A max. @ 30 VDC or 0.3A max. @ 125 VAC (Resistive Loads)
Relay Life Expectancy
Mechanical: 50,000,000 operations minimum @ 36,000 operations/hour
Electrical: 200,000 operations minimum @ rated load
Status LEDs
Two Green LEDs (Tx/Rx Communication Status); Three Red LEDs (Relays 1, 2, & 3)
Buzzer
80 dB at 3.94" (10 cm), 2700 Hz (3 Programmable Tones)
Sensor Warm Up Time
24 Hours (Allow 24 hours before calibrating sensor after installation)
Sensor Type
See Sensor Technology Type in Table on back of Product Data Sheet
Sensor Gas Types
Combustible, Toxic Gases/Oxygen Sensor & Infrared
Coverage Area and Mounting Height
See Gas Sensor Selection & Specification Table on back of data sheet
Sensor Life Expectancy
Toxic/Electrochemical Sensors: 2 to 3 Years, typical
Oxygen/Hydrogen Sensors: 18 months, typical
Combustible/Catalytic: 3 to 5 years, typical
CO 7 years, typical
Unit Shelf Life
Electrochemical (Toxic) Sensors: 6 months from date of purchase
Catalytic (Combustible) Sensors: 1 year from date of purchase
Replacement Sensor Modules
See additional on-line Product Literature or Contact ACI
Recommended Maintenance
Combustible Sensors: Accuracy & Bump test every 3 months or as required by Code
Toxic Sensors: Accuracy & Bump test every 6 months or as required by Code
Enclosure Specifications (Material Type, Flammability, NEMA/IP Rating
Plastic Enclosure; Polycarbonate Lexan; UL94 V-0, NEMA 4, 4X, 12 and 13 (IP66)
Enclosure Knockouts
3/4" Knockouts (accepts 1/2" Conduit Fittings)
Operating Temperature and Humidity
See Sensor Selection & Specification Table on back of data sheet
5 to 95% RH, non-condensing
Operating Atmospheric Pressure
14.696 psi (1.0132 bar) +/- 10%
Recommended Storage Temperature/Humidity
32 to 68F (0 to 20C)
5 to 95% RH, Non-Condensing
Wiring Connections and Wire Size
De-pluggable Screw Terminal Blocks
16 to 24 AWG (0.2047 to 1.301 mm) Shielded Twisted Pair
Communications Cable
Belden 9841 or Equivalent, 120 Ohms Input Impedance
Terminal Block Torque Rating
0.37 ft-lb (0.502 Nm) Nominal