Datasheet

ManualsBrandsELT Sensor ManualsActive ComponentsGas sensor module Suitable for gases: Carbon dioxide (L x W x H) 19.4 x 30 x 10.3 mm

Table Of Contents

ELT SENSOR Corp.

1 | Page

General

T-200 series is the world’s smallest CO2 sensor

module. Its Persistent Stability and Temperature

Effect Resistance besides easy management are

much favored by customers in stocks raising,

greenhouse, scientific projects, etc.

Features

• Non-Dispersive Infrared (NDIR) technology used

to measure CO₂ levels.

• .The world’s smallest size

• .Pre-calibrated

• Available output : TTL-UART, I2C

(PWM/Analog Voltage option)

•.Gold-plated sensor provides long-term

calibration stability.

• Installed Calibration function

•ACDL (Periodical Automatic Calibration) and

MCDL (Non-Periodical Manual Calibration)are

available..

• Size : 19.4mmx30mmx10.3mm

• Weight : 5 grams

ELT Sensor

Data Sheet for T-200

Ver

1.2_Conrad

Summary of content (13 pages)

PAGE 1
ELT SENSOR Corp. General Ver 1.2_Conrad T-200 series is the world’s smallest CO2 sensor module. Its Persistent Stability and Temperature Effect Resistance besides easy management are much favored by customers in stocks raising, greenhouse, scientific projects, etc. ELT Sensor Data Sheet for T-200 Features • Non-Dispersive Infrared (NDIR) technology used to measure CO₂ levels. • .The world’s smallest size • .Pre-calibrated • Available output : TTL-UART, I2C (PWM/Analog Voltage option) •.
PAGE 2
ELT SENSOR Corp. 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.
PAGE 3
ELT SENSOR Corp. UART 38,400BPS, 8bit, No parity, 1 stop bit, TTL Level Voltage I2C Slave mode only, 10kΩ pull up resister TTL Level Voltage : 0≤VIL≤0.8, 2≤VIH≤VDD, 0≤VOL≤0.4, 2.4≤VOH≤VDD(Volt) Pin Map of J2 Board to Board Connector. Pin No. T-200 1/16 VDD (+5V VCC) 2/8/9/12 GND 3 Reset (Active High) 4 Reserved 5 I2C SCL 6 ACDL 7 PWM : Option 10 A-OUT : Option 11 MCDL(10 min.
PAGE 4
ELT SENSOR Corp. Cavity Dimensions (unit : mm) 1.27mm pitch socket is recommended for T-200 for convenience of connection.
PAGE 5
ELT SENSOR Corp. And 1.27mm center pin header recommended for mating with Socket of T-200.
PAGE 6
ELT SENSOR Corp.
PAGE 7
ELT SENSOR Corp. T-200 has B-TO-B connecting PLUG (Molex: 55560-0168) on PCB.
PAGE 8
ELT SENSOR Corp.
PAGE 9
ELT SENSOR Corp. Calibration Mode (ACDL/MCDL) ACDL function(Automatic Calibration Function in Dimming light with period) Method 1.UART Command Set; J1-3pin (UART-RX) and J1-5pin (UART-TX) to Main-Board. (J2-13pin and J2-14pin are available for B to B connector User as well) Method 2.I2C Command Set; J1-8pin (SCL) and J1-9pin (SDA) to Main-Board. Method 3.Execute Hardware based ACDL. ※ 1.
PAGE 10
ELT SENSOR Corp. should be stopped before 18minute to avoid MCDL fetch repetition. Method 1. UART Command Set; pin-3 (UART-RX) and pin-5 (UART-TX) to Main-Board. (J2-13pin and J2-14pin are available for BtoB connector User as well) Method 2. I2C Command Set; pin-8 (SCL) and pin-9 (SDA) to Main-Board. Method 3.Execute Hardware based MCDL. 1. To activate ACDL function, the user’s application must be designed to give Low-Active Signal topin-10 with High De-Active Signal to pin-6 for 10 minutes.
PAGE 11
ELT SENSOR Corp. 2. EK-100SL (Evaluation kit, with Emulation program ‘ELTWSD’) is available for Target PPM function.
PAGE 12
ELT SENSOR Corp. 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 0 1 1 0 0 0 1 Bit0 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.
PAGE 13
ELT SENSOR Corp. (Delay at least 1ms for reading each byte) 0 Configuration CO₂ reserved reserved reserved reserved 1 Byte 2 Byte 0x00 0x00 0x00 0x00 0 0 0 1 0 0 0 In need of detail protocol specification and time sequence, ‘I2C programming guide’ could be provided by contacting Sales Rep. ※ Caution 1. Please hold only ‘PCB’ of sensor without holding Cavity directly to avoid the physical shock on sensor. Rough handling or Transportation could result in inaccurate reading. 2.