NDIR sensors for measurement of carbon monoxide (CO), carbon dioxide (CO2) and methane (CH4)

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madIR-D01 Sensor System

Microprocessor equipped NDIR Measuring cells

IR sensors in one channel configuration. Available for many measuring ranges from 2000 ppm to 100 % for a variety of industrial applications.

Properties

Using microprocessor technology, all on one board
Fast reaction time (T90 < 45 seconds.)
Zeroing of the sensor: manually over zero button or externally over contacts
Automatic permanent check of sensors function. Necessity for calibration indicated by LED.
Automatic temperature compensation

Product info

Working modes

"Smart Zero" - automatic correction of sensor zero using values from the previious 1 to 30 days
Continuous operation in 3 modes - zero, measure, standby
Continuous operation with timetable (24 hour cycle)
Continuous operation with permanent measurement (may be zeroed externally)

Standard configuration

ABS housing
Linear voltage output - active range (begin and end) may be user-configured within the nominal range 0....10 V.
Linear current output - active range (begin and end) may be user-configured within the nominal range 4....20 mA
Interface RS232C for changing the sensor settings and for data-logging
Digital output (0/5 V) – shows operating state of the sensor (0 V-measurement / 5 V-zeroing or standby)
Digital output (0/5 V) – shows the operating state of the pump ( 0V-off / 5 V-on)
Digital PWM output (0/5 V) - programmable output
Zeroing of sensor either manually using integrated button or externally over contacts
Power supply 13...30 VDC or 9...24 VAC, max 3 W

Optional equipment

Membrane pump test gas or zero gas

Display module

Data storage on 256 MB MMC

USB connection with madur adapter

Processing and display of measurement values

Measured gas concentration in [ppm] or [%] as:

Measured values in digital form over RS232

Measured value stored in digital form on internal memory card (option)

Measured value over analogue outputs 0/4 - 20 mA and 0 - 5/10 V

Measured values on internal display (option)

PC programme for changing the sensor settings and for data-logging

Operating data

Parameter	madIR-D01
Measured gases	CO, CO₂, CH₄
Measuring method	infra-red absorption, 1 channel with light modulation
Housing	ABS
Sampling	Diffusion or flow
Operating temperature	0 ÷ +50°C
Storage temperature	-20 ÷ +70°C
Humidity	5 ÷ 90 %, non-condensing
Voltage supply	13...30 VDC or 9...24 VAC
Power	max. 3 W
Analogue outputs	Begin and end can be user-configured within the range Current: 4 - 20 mA, linear Voltage: 0 - 10 V, linear
Interface	RS 232C
Averaging time	2 ÷ 60 s user-configured
Calibration	10 point calibration stored in EEPROM
Recalibration	not necessary. Falls erwünscht 2-Punkte Kalibrierung möglich
Size of Printplatte	105 x 40 x 30 mm
Size of shot ABS housing	120 x 80 x 55 mm
Size of long ABS housing	240 x 80 x 55 mm
Weight (short / long housing)	220 g/330 g

Measurement Channel Technical Data
Gas	Range	Resolution	Detection limit	Accuracy	Resp. time (t90)
CO - carbon monoxide-volumetric concentration CO₂ - carbon dioxide-volumetric concentration CH4 - methane-volumetric concentration	0...100 %	0.10 %	0.10 %	± 0.5 % abs., or 3 % rel.	45 s
	0....50 %	0.10 %	0.10 %	± 0.3 % abs., or 3 % rel.
	0...25 %	0.01 % (100 ppm)	0.01 % (100 ppm)	± 0.15 % abs., or 3 % rel.
	0...10 %	0.01 % (100 ppm)	0.01 % (100 ppm)	± 0.05 % abs., or 3 % rel.
	0...5%	0.01 % (100ppm)	0.01 % (100ppm)	± 0.03 % abs., or 3 % rel.
	0...2,5%	0.001 % (10 ppm)	0.001 % (10 ppm)	± 0.015 % abs., or 3 % rel.