DTP DIWELL | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 3
Technical content
Non-contact Infrared Temperature Sensor Page 1 of 3 1.0.1.
Ordering Information
DTP - (1) - H(2) (1) interface UART UART 3.3V
485 RS-485 Modbus
(2) lens code FOV 04 3.814° 08 7.16° * DTP-UART-H04: UART interface, FOV=3.814° * DTP-485-H08: RS-485 interface Modbus protocol, FOV=7.16° Product Specifications All of voltages refer to 3.3V, ambient temperature is 25℃ unless otherwise note. Parameter min Typ Max Unit Supply voltage 3.2 3.3 3.6 V Supply current 11 13 mA Filter type F5.5 (LWP cut on 5.5㎛) Object temperature range -40 380 ℃ Operating temperature -20 70 ℃ IR refresh rate 10 Hz Accuracy(*) ±2 % Resolution digital 0.1 ℃ Emissivity 0.1 0.97 1.0 Standard start-up time 200 ms Stabilization time 1 min Weight 485 H04: 3.19g, H08: 2.96g UART H04: 3.13g, H08: 2.90g Communication interface UART TTL(3.3V), RS-485 Baud rate(Fixed) 19200bps Relative humidity 95% Max. non-condensing *: ±2% of reading or ±2℃ whichever is greater. Accuracy is only effective if the object is fully covered by the sensor's FOV and applicable to stable temperature conditions. Dimensions unit: mm - DTP-UART Top view Bottom view - DTP-485 Top view Bottom view - Side view DTP-XXX-H04 DTP-XXX-H08 Pin Configuration No. DTP-UART DTP-485
1 GND GND
2 RX D+
3 TX D-
4 3.3V 3.3V Accessories 100mm length, four wire open cable 1 pc
Non-contact Infrared Temperature Sensor Page 2 of 3 1.0.1. Calculate Field of View The FOV determines the size of the infrared measurement area according to the distance. unit: mm Angle FOV 7.16° 2 ⅹ tan(7.16° 2ൗ ) ⅹ distance(mm) + 6.75 (mm) 3.814° 2 ⅹ tan(3.814° 2ൗ ) ⅹ distance(mm) + 8 (mm) Protocol downloads DTP-UART: https://www.diwellshop.com/web/en/DTP/DTP-UART_protocol_EN.pdf DTP-485: https://www.diwellshop.com/web/en/DTP/DTP-485_protocol_EN.pdf Object Temperature To, Ambient Temperature: Ta To is the object temperature derived from thermopile and ambient sensor outputs. Ta stands for ambient temperature. 0x016D(hex) = 365(dec) → means 36.5℃ 0xFFF1(hex) → 0x000F(two’s complement)=15 → means -1.5℃ - Output Data Limit Emissivity Correction The DTP is calibrated for an object emissivity of 0.97. It can be easily customized by the customer for any other emissivity in the range 0.1…1.0. Refer to the protocol pdf to adjust emissivity. Products handling precaution ※ When it comes to dust removal by air, the best method is to use a blower, and to avoid using compressed air. ※ Do not press the lens with your hands or any other object. ※ Do not scratch the lens surface with sharp objects. ※ Voluntary disassembly and modification of the product is prohibited. ※ Avoid direct sunlight, chemical substance, heat or fire. ※ Water resistance is not guaranteed. Tutorial 1(Arduino UNO) - Connection Diagram - DTP-UART: https://www.diwellshop.com/web/en/DTP/DTP-UART_Arduino.zip Hardware: Arduino Uno, DTP-UART Sensor, 100Ω, 1.8㏀, 3.3㏀ Software : Arduino IDE - DTP-485 : https://www.diwellshop.com/web/en/DTP/DTP-485_Arduino.zip Hardware: Arduino Uno, DTP-485 Sensor, RS-485IC, Software : Arduino IDE - Expected Results.
Non-contact Infrared Temperature Sensor Page 3 of 3 1.0.1. Tutorial 2(Raspberry pi 2) - Connection Diagram - DTP-UART: https://www.diwellshop.com/web/en/DTP-UART_Raspberry.zip Hardware: Raspberry Pi 2, DTP-UART Sensor. Software : wiringPi library - Connection Diagram - DTP-485: https://www.diwellshop.com/web/en/DTP-485_Raspberry.zip Hardware: Raspberry Pi 2, DTP-485 Sensor. RS-485 transceiver(3.3V operating) Software : wiringPi library - Expected Results. Additional information Manufacturer: DIWELL Electronics Co., Ltd. (South Korea) Technical support: mailto:expoeb2@diwell.com, mailto:dsjeong@diwell.com
Revision history
Version Date(Y,M,D) Description 1.0.1 2022.10.27 Fix Dimension Errors(page 1)