Datasheet
Table Of Contents
- General
- Features
- T-200 Specifications
- General Performance
- Operating Temperature : -20℃ ~ 60℃
- Operating Humidity : 0 ~ 95% RH (Non-condensing)
- Operating Environment : Residential, Commercial spaces
- Storage Temperature : -30℃~70℃
- CO₂ Measurement
- Sensing Method : NDIR (Non-dispersive Infrared)
- Measurement Range : 400 ~ 2,000
- Accuracy : ± 50ppm ± 3%of reading
- Response Time(1/e) : 40 seconds (c.f. T90 : 65 seconds)
- Signal Update : 3 seconds
- Electrical Data
- Power Input : 5.0VDC ± 5%(2)
- Current Consumption: Normal mode : 22mA, Peak : 250 mA
- Pin Map of J1 Side hole.
- ※ J1 Side Hole : 1.27mm pitch
- UART
- 38,400BPS, 8bit, No parity, 1 stop bit, TTL Level Voltage
- I2C
- Pin Map of J2 Board to Board Connector.
- ※ B-to-B Connector mating should be enhanced with additional Locking method.
- (T-200 has two of screw type-locking hole - 2Ø U-type hole)
- UART Descriptions
- Data Format
- I2C Communication (Only Slave Mode Operation)
- 2. Proper ESD protection during handling is important to avoid electrostatic defect occurrence.
- The storage of sensor should be insulated as well
ELT SENSOR Corp.
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I2C Communication (Only Slave Mode Operation)
Internal pull up resister
Slave Address: 0x31, Slave Address Byte: Slave Address(0x31) 7 Bit + R/W 1 Bit
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
0 1 1 0 0 0 1
R/W
Bit
R/W Bit : Read = 1/Write = 0
When reading the data, Slave Address Byte is 0x63, When writing the data, Slave Address Byte
is0x62.
Block Diagram
Transmission Sequence in Master
1) I2C Start Condition
2) Write Command(Slave Address + R/W Bit(0) = 0x62) Transmission and Check Acknowledge
3).Write Command(ASCII ‘R’ : 0x52) Transmission and Check Acknowledge
4) I2C Stop Command
5) I2C Start Command
6) Read Command(Slave Address + R/W Bit(1) = 0x63) Transmission and Check Acknowledge
7) Read 7 Byte Receiving Data from Module and Send Acknowledge