Carbon Monoxide Transmitter Modbus
Installation Manual
May 5, 2017
IN-CMD5B4MOD-01-01 Page 11
Specifications
Measurement . . . . . . . . . . . . . . . . . Electrochemical
Sample Method . . . . . . . . . . . . . . . Diffusion
Measurement Range . . . . . . . . . . . 0-100, 150, 300, 400 or 500 ppm (selectable)
Accuracy . . . . . . . . . . . . . . . . . . . .
5 ppm or
5% of reading (whichever is greater)
0-50
C (32-122
F), 15-90 %RH
Operating Conditions . . . . . . . . . . -20-50
C (-4 -122
F), 15-90 %RH, 0.9-1.1 atm
Stability . . . . . . . . . . . . . . . . . . . . . < 5% signal loss/year
Response Time . . . . . . . . . . . . . . . < 35 seconds for 90 % step change
Typical Area Coverage . . . . . . . . . 700 m
2
(7500 ft
2
) or 15 m (50 ft) radius
Power Supply . . . . . . . . . . . . . . . . 24 Vdc ± 20% or 24 Vac ± 10% (non-isolated half-wave rectified)
Consumption . . . . . . . . . . . . . . . . . 100 mA max (with all options on)
Protection Circuitry . . . . . . . . . . . . Reverse voltage protected, output limited and transient protected
Output Signal . . . . . . . . . . . . . . . . 4-20 mA active, 0-5 or 0-10 Vdc (selectable)
Output Drive Capability . . . . . . . . 450 ohms max for current output, 10 Kohm min for voltage output
LCD Display . . . . . . . . . . . . . . . . . 1 ppm resolution, 1.4” w x 0.6” h (35 x 15 mm) alpha-numeric
2
line
x
8
characters
with
backlight
Status LED . . . . . . . . . . . . . . . . . . . Two color (red/green) on front panel
Test Switch . . . . . . . . . . . . . . . . . . Performs I/O tests, front panel and remote connection
Buzzer alarm . . . . . . . . . . . . . . . . . 85db @ 10 feet
Buzzer Trip Point . . . . . . . . . Programmable 20-500 ppm in 10 ppm increments
Buzzer Delay . . . . . . . . . . . . Programmable 0-10 minutes in 1 minute increments
Wiring Connections . . . . . . . . . . . Screw terminal block (14 to 22 AWG)
Enclosure . . . . . . . . . . . . . . . . . . . 5.0”w x 4.0”h x 2.55”d (127 x 101 x 65 mm)
Agency Approvals . . . . . . . . . . . . Sensor is UL Recognized for ANSI/UL-2034 and UL-2075, E240671
Optional Relay
Outputs . . . . . . . . . . . . . . . . . Form C contacts (NO and NC), 5 Amps @ 250 Vac, 5 Amps @ 30 Vdc
Relay 1 Trip Point . . . . . . . . . Programmable 20-500 ppm in 10 ppm increments
Relay 2 Trip Point . . . . . . . . . Programmable 20-500 ppm in 10 ppm increments
Relay Hysteresis . . . . . . . . . . Programmable 10-100 ppm in 5 ppm increments
Relay Delay . . . . . . . . . . . . . . Programmable 0-10 minutes in 1 minute increments
Optional ModBus
Hardware . . . . . . . . . . . . . . . . 2-wire RS-485
Software . . . . . . . . . . . . . . . . Native ModBus MS/TP protocol (RTU or ASCII)
Baud Rate . . . . . . . . . . . . . . . Locally set to 300, 600, 1200, 2400, 4800, 9600 or 19200
Slave Address Range . . . . . . . Locally set to 1-255 (factory default is 1)
Optional BACnet
Hardware . . . . . . . . . . . . . . . . 2-wire RS-485
Software . . . . . . . . . . . . . . . . Native BACnet MS/TP protocol
Baud Rate . . . . . . . . . . . . . . . Locally set to 9600, 19200, 38400 or 76800
MAC Address Range . . . . . . Locally set to 0-127 (factory default is 4)
