I.USB Hart Modem Feature
1.USB Interface
2.Built-in loop power supply
3.Built-in loop resistor
4.Free software
II.USB Hart Modem Overview
SRK HART Modem is a smart device configuration / debug tools, can be used for the production of intelligent. HART configuration,commissioning and on-site management,
maintenance and so on, use HART configuration / debug tools in the production process to configuration, debugging,calibration, diagnostics the HART Intelligence equipment, can also be used for management, configuration running. HART smart field devices and monitoring process variables.Windows XP/7/8/10 Support, Suitable for All Devices Which Support HART Protocol, etc.
Main Features:
* Fully HART compliant for communication with any HART instrument and error-free slave testing
* DC-DC isolation power draws from USB port and needs no external power supply
* Three modes: 1) 24VDC/270Ω. 2) Normal. 3) 270Ω. The mode is easily slide-switch selected so you'll always have a power supply or loop resistor with you
* Easy installation and use, this modem can power all 2-wire HART devices-independent of supplier
* Rugged aluminium alloy case gives you industrial-grade reliability in a small package
* Free HART application software for you to configure your HART device
* Smart Design, smaller than a normal name card
III.USB Hart Modem Specifications:
Power Supply | System powered by USB port. Does not require external power |
Supply Current | 30mA@+5V for modem only; 260mA@+5V with device power and modem |
Interface | USB-A connector, compliant for USB2.0/1.1 |
HART connection | 2-wire and polarity insensitive test clips |
Output level | 0.5±0.1Vpp sinusoid wave @1200/2200Hz, 24VDC@70mA to device |
Demodulation Jitter | 12% of 1 bit typical |
Leakage process loop | ±10uA Max. |
Isolation | 6.5KVDC, 4.6kVrms between instrument and device |
Operating system | Win98, Win2000, WinXP, 32-bit or 64-bit Win7, Win8 and Win10 |
Operating Temp. | -25~55 degree Celsius (-32~131 degree Fahrenheit) |
Storage Temp. | -40~85 degree Celsius (-40~185 degree Fahrenheit) |
Storage Humidity | 0% to 95% relative humidity (No condensing) |
Option Mode | Slide-switch for selection: 1. 24V/270Ω; 2. Normal; 3. 270Ω |
Enclosure | Aluminium alloy, Sky blue color, 63mm×52mm×22mm, 120g weight(include cable) |
USB cable | 1m(4 feet) length terminating USB type A connector |
Test cable | 1.5m(5 feet) length 2-strand wire terminating in two test clips(red and black) |
IV.USB Hart Modem Applications:
1. Install the USB driver software. You can update or download this driver anytime from internet;
2. Plug the USB cable to your PC, the yellow 'POWER' LED will illuminate;
3. Slide-switch to select operating mode, and connect the test cable and HART device according to the following pictures:
* 24VDC/270Ω Mode:
The red "24VDC" LED will illuminate. This mode can power all 2-wire HART device, internal loop resistor is available. Does not need external power and loop resistor.
* Normal Mode:
The red '24VDC' LED will not illuminate. This mode is very typical for HART MODEM, need external power and loop resistor 250Ω~1000Ω.
* 270Ω Mode:
1. The red '24VDC' LED will not illuminate. This mode need external power, does not need loop resistor;
2. Run the HART application software to configure your HART device. The red and blue bi-color "Tx/Rx" LED will blink alternately when the communication is good between PC and HART device( Tx-RED, Rx-Blue).
3. If you finish your operating, Please close your HART software, then pull out the USB cable and disconnect the test cable.
Packing List:
1 x WS232UP Unit;
1 x USB Date Cable;
1 x Carry Pouch;
1 x CD Driver.