Data Sheet The MiCS-VZ-87 is an integrated sensor board for Indoor Air Quality monitoring. The MiCS-VZ-87 combines state-of-the-art MOS sensor technology with intelligent detection algorithms to monitor VOCs and C02 equivalent variations in confined spaces, e.g. meeting rooms or vehicle cabins. The signal output can be used to control ventilation on- demand, saving energy and reducing cost-of-ownership. Detectable gases • Volatile Organic Compounds VOCs • equivalent Carbon Dioxide C02(equiv) Conversion from analog output signal Vout of MICS-VZ-87 to equivalent Carbon Dioxide concentration in ppm Comparison between MICS-VZ-87 output signal and NDIR C02 sensor signal over a duration of 4 consecutive days Supporting your great ideas a member of the Angst + Pfister Group

Data Sheet Performance Detection Method Semiconductor gas sensor, detecting a wide range of VOCs Monitoring Range Analog Output Digital Output Pin 2 – 4: TTL output 30Hz, Full Range 5…95%, duty cycle 5V Response Time Refresh Output Frequency Equivalent to conventional NDIR-CO2 sensors 1 Hz Operation Supply Voltage Operating Power Warm-up Time Operating Temperature Operating Humidity Storage Temperature Storage Humidity IMPORTANT PRECAUTIONS Read the following instructions carefully before using the indoor air quality sensor described in this document to avoid erroneous readings and to prevent...

Data Sheet Power-on Self-Test Parameter Failed Diagnostic Indicator Sensor Resistance Range Range Check Sensor Operating Power Range Check LED Indicator Operation Period Operation Mode First minute after Power-on Functional Test Mode Blinking LED (0.5 Hz) Color according to pollution level (CO2 equ.) Continuous mode after 60 sec. Normal Operation MiCS-VZ-87 Outputs After Power-on self-test (2 seconds) , the device is in “Functional Test Mode” for 60 seconds. This mode is made visible by LED indicator blinking. During this period the device can be exposed to a test gas in order to check the reactivity...

Data Sheet I2C is a simple two-wire chip-to-chip digital communication protocol. The protocol is master oriented but allows bidirectional communication on just two communication lines. MASTER to SLAVE SLAVE to MASTER Address byte = OblllOOOOO (Write) Address byte = OblllOOOOO Command = ObOOOOOlOO Data byte 1 = ObOOOOllOl (example of data) Data byte 1 = Obxxxxxxxx (not used) Data byte 2 = ObOOOOOOOO (constant) Data byte 2 = Obxxxxxxxx (not used) Address byte = OblllOOOOl (Read) Data byte 1 = 13 => 13/255 = 5% I2C bus allows communication between several masters and several slaves used in monitoring...

Data Sheet The MiCS-VZ-87 is available as a PCB module (designated VZ-87) or as a packaged version for protection and simple mounting (designated VZ-87H) Teflon Membrane + Bayonet Attachment Electrical Connector mates with Tyco Electronics 965413-1 1355881-1 Whilst SGX sensortech has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of any use thereof and also reserves the right to change the specification of goods without notice. SGX sensortech accepts no liability beyond the set out in its standard conditions of sale in respect...

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