GE Measurement & Control ZTP-188MA Thermometrics IR Module The ZTP-188MA 1 x 8 IR module is used for noncontact surface temperature monitoring. This thermopile IR module presents the temperature compensated 8 linear array outputs via I2C with optics (Silicon Lens). It can also provide compatibility with the customer’s device without the need for recalibration. The ZTP-188MA uses 4-wire connections: two signals for I2C output, single power supply and ground. The sensor is fully calibrated with a wide object and ambient temperature range. Lens for different field of views are available on request. Applications • Air conditioners • Human body temperature detection Features • Digital temperature output • I2C communication protocol • Fully calibrated and compensated • 1 x 8 array module • Compact size and large detection range • Low power consumption • Multi-zone detection Specifications I2C Command Limit Parameter Min Supply Voltage Output Format 4.75 Supply Current Typ 5.00 Unit Max Sensor I2C Address Command Descriptions 5.25 ZTP-188MA 0x58 0xA1 Read Target Temperature 0xB1 Read Sensor Temperature 4.5 V mA Temperature Range 0 40 °C Operating Temperature 0 70 °C Storage Temperature -20 100 °C Resolution 0.1 Temperature Calculation °C Digital I2C Output Type Baud Rate 100 Kbit/sec Address length 7 Bit Address 0 x 58 - Input/Output High level I2C Command 0.7 VDD Input/Output Low level Total FOV 50 degree Pixel FOV 7 degree PCB Size 23 mm X 30 mm 1 : Above 25.6°C 0 : Less than 25.5°C V 0.3 VDD V Examples of Temperature Calculation Case-1 : 0°C ~ 25.5°C • • Send value : 0x58, 0xA1 Return value : Byte(0) : 0x00, Byte(1) : 0xC8 Output temperature = (256* Byte(0) + Byte(1)) / 10 = (256 * 0 + 200) / 10 = 20.0 Case-2 : above 25.6°C • • Send value : 0x58, 0xA1 Return value : Byte(0) : 0x01, Byte(1) : 0x96 Output temperature = (256* Byte(0) + Byte(1)) / 10 = (256 * 1 + 150) / 10 = 40.6 Temperature Accuracy Field of View of Sensor Module Horizontal FOV Remark Vertical FOV Remark 54° 50% of maximum output 14° 50% of maximum output Horizontal FOV Package Dimension Vertical FOV www.ge-mcs.com 920-592A © 2012 General Electric Company. All Rights Reserved. Specifications are subject to change without notice. GE is a registered trademark of General Electric Company. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affiliated with GE.