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Welcome to DOWESTON's website!
DOWESTON® is a premium instrumentation and sensor brand serving customers worldwide. DOWESTON® is dedicated to bringing users a reliable, easy-to-use, efficient and advanced inspection and measurement experience.Here you will find all contact options at a glance:
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DOWESTON ELECTRONIC INTL INC
617 CEPI DRIVE, CHESTERFIELD, Missouri, 63005,United States
Headquarters
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DOWESTON TECHNOLOGIES (UK) LIMITED
291 BRIGHTON ROAD SOUTH CROYDON UNITED KINGDOM CR2 6EQ
Headquarters
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DOWESTON(CHINA) CO,. LTD. ( ASIA)
No.12, Huaxing Road, Jinjiang District, Chengdu, China
Headquarters
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Nov 17, 2022

Thank you for choosing Dawson!

Dmb-475 Hart debugger and HART-tool Android! This product is a smart hardware, it uses Bluetooth wireless technology and HART Tool APP, can easily configure from the mobile phone to comply with the Hart Protocol of instrument devices, instead of the traditional Hart manipulator.

Hart Tool     

Hart debug box purchase

At the same time, it is also a mobile power supply that can work independently, using high-quality lithium-ion battery and excellent charge and discharge chips, in reliability, efficiency, compatibility and other aspects are outstanding performance.

Special notes

After opening 24VDC, we should pay attention to avoid the two terminals of the Hart connection caused by contact 24VDC short circuit!

Support the 24VDC version of the Hart debug box with the Hart Cable for special cable, do not mix with other versions of the Hart debug box wiring!

Red is 24V positive, black is 24V negative. Please connect the transmitter correctly. We will not take any responsibility for the failure of the transmitter caused by the connection.



Attention

First use, please first charge this product.

When using this product to charge the digital product, please choose the suitable connection cable.

In the process of product discharge, if the LED indicator of this product is all off, it means its power is insufficient, please charge as soon as possible.

When the digital products are fully charged, please unplug the cable in time to avoid loss.

When the product enters the protection state due to output short circuit and other reasons, it needs to be recharged by an external charger.


Warning

This product contains lithium-ion battery, is strictly prohibited to open the product shell, to avoid possible damage to the battery or other hazards.

It is strictly forbidden to disassemble, extrude, puncture, short-circuit this product, or put it into water or fire, or expose it to the environment with temperature higher than 60 ° C (140 ° F) .



Product characteristics

Perfect Hart communication function, configuration in line with the Hart Protocol of instrument equipment.

App Mode: just download the Hart Tool APP and install it on your phone, then connect to it via Bluetooth and configure the HART device easily on your phone.

Wireless connectivity: The Hart Debugger uses wireless communication (Bluetooth low energy technology) with the phone to provide a stable transmission channel.

Lightweight and portable: humanized design, small size, light weight, compact and portable.

Special functions: equipped with high quality lithium-ion battery, using charge and discharge management IC, multi-protection mechanism, whether it is charge, discharge, or standby, can easily deal with over-charge, over-discharge, high temperature, short circuit and other abnormal conditions, can be used as an emergency mobile power for digital devices, mobile applications for your reliable protection.

The Perfect Hart debugging function configuration conforms to the HART protocol instrument equipment. The general parameters of Hart instruments at home and abroad are supported by Hart industry standard. Including but not limited to: process variable module: Used to display the main variables, current, percentage and version number; Diagnosis/service module: mainly includes equipment self-test, loop test, zero migration, range migration, 4MA fine-tuning, 20mA fine-tuning, main variable zero and main reset; Basic setup module: can set the work station number, descriptor, date, whether to write protection, message and assembly code; Detailed setting module: display sensor parameters and set signal range unit, range upper limit, range lower limit, damping, conversion function and other information.
 

Technical parameters

Interface: Micro USB interface * 1, standard USB interface * 1, Bluetooth 4.0

Battery: high quality lithium-ion battery, capacity according to order options

Input Voltage: DC 5.0V

Output Voltage: DC 5.1 V

Environment: charge temperature 0 ° C-45 ° C (Typ) , discharge temperature -10 ° C ~ + 50 ° C (Typ)

Dimensions: 90.5 * 77 * 21.6 mm

Charging Time (5V/1A Charger) : about 6 hours when capacity select 5000mAh; about 3.5 hours when capacity select 2500mAh


Connect to your mobile phone

Press the multi-function button once, if the power allows, the product will start to run, while the LED flicker shows the current device power, at this time in 5 minutes, the phone can be connected to the product Bluetooth.

After a successful connection, if there is no data interaction between the phone and the Hart debug box for more than 5 minutes, the device will automatically turn off wireless communication and enter a low-power standby state. To reconnect, press the button again.
 

Hart Communications

Use this product dedicated Hart cable, connected to the transmission instrument, with the mobile phone connected to the Hart debug box after the operation of the APP can easily configure the instrument. Please refer to the help documentation for how the APP works.


Start and close 24VDC

The 24VDC can be started or turned off using the HARTLink APP or the Hart debugger button. In order to extend the life of Hart debug box button, it is recommended to use APP soft switch.

Hart debug box forced switch mode: long press a multi-function button, if the power allows, 24VDC will open, while Led1(red) light up, indicating that the device currently provides 24VDC output. Press long again and the 24VDC will turn off while the Led1 goes off.

24VDC startup notes please read the Special Notes section carefully!

Charge   

Use a reliable power adapter connection to charge the product. When charging, the corresponding relationship between the display state and the power quantity is as follows:

Electricity

LED3

LED4

Start charging to < 40%

Twinkle

Extinguish

40-70%

Extinguish

Twinkle

70-99%

Twinkle

Twinkle

Charging complete

Extinguish

Extinguish


Discharge   

Using USB data cable to connect digital products can charge digital products. When discharging, the corresponding relationship between the display state and the electric quantity is as follows:

Electricity

LED3

LED4

Under pressure

Extinguish

Extinguish

<40%

Twinkle

Extinguish

40-70%

Extinguish

Twinkle

>70%

Twinkle

Twinkle


Note: In Charge, discharge, just insert the cable, the device will be self-identification start, do not need to press the button.


Important tips

The warranty will be lost if:

1, unauthorized maintenance, misuse, collision, neglect, abuse, fluid intake, accident, alteration, incorrect use of non-native parts, or tear, alter the sticker, machine number, anti-counterfeiting marks;

2, the warranty period has been exceeded;

Damage caused by force majeure;

4, cause the product and its accessories to produce the performance fault because of the artificial reason.

 

Contant DOWESTON
DOWESTON™ is a premium instrumentation and sensor brand serving customers worldwide. DOWESTON™ is dedicated to bringing users a reliable, easy-to-use, efficient and advanced inspection and measurement experience.
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