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称重变送器也叫做重量变送器，是一种将物理量变换成电信号，将毫伏信号输出的传感器经隔离放大转换成标准直流信号的变送器。
称重变送器在工业称重过程中常用的一种变送器，广泛应用于数据采集、信号传输转换和集散称重控制系统和配料系统，主要应用于水泥、混凝土、玻璃、造纸、塑胶、化工、冶金、有色、棉纺、试验机等行业称重式料位、重量负荷、张力、拉压力信号的变送、显示、检测等。
美国Transducer Techniques SST-HV是一款智能插拔式TEDS IEEE 1451.4变送器，连接称重传感器或者扭矩传感器TEDS接头，可自动校准。SST-HV通过RS232端口，将数据采集给PC端。
The Transducer SST-HV is a Plug & Play Smart TEDS IEEE 1451.4 compliant Transmitter. Just plug in a TEDS compatible Load Cell or Torque Sensor and the SST-HV will automatically self-calibrate. When used with a non-TEDS Load Cell or Torque Sensor, the SST-LV Transmitter is easily programmed using a PC with an RS232 port and Instrument Setup (IS) software, which provides a graphical user interface. The SST-HV may be powered from 95-240 Vac ±10%. The SST-HV has an Isolated transducer excitation output that is selectable between 5Vdc or 10Vdc. There are Dual solid state relays and an Isolated 4-20 mA, 0-20 mA or 0-10V analog output. There are three Isolated serial data transmitter output ( RS232 , Half-duplex RS485, full-duplex RS485 ) and three serial protocols that are software selectable (Modbus RTU, Modbus ASCII and Custom ASCII).
Isolation to 250V rms is provided for power, signal input, analog output, relay outputs, and communications. Isolation adds safety and avoids possible ground loops. The transducer excitation output is isolated to 50V from signal ground
CE认证
Accuracy of 0.01% of full scale ± 1 count.
Update rate to 60/sec in 60 Hz noise environments or 50/sec in 50 Hz noise environments.
Full-scale range from 20.000 mV full scale (1 μV resolution) to 500.00 mV full scale (10 μV resolution).
Isolated transducer excitation output. 5V at 100mA or 10V at 120mA as selected by TEDS. In non-TEDS operation, the excitation is always 10V.
Isolated 4-20 mA, 0-20 mA or 0-10V analog output.
Isolated serial data transmitter output. The transmitter serial port is default jumpered for RS232 or full-duplex RS485 (same jumper settings).
Isolation to 250V rms is provided for power, signal input, analog output, relay outputs, and com-munications.
Internal jumpers are used to select the signal range, communication type, and exci¬tation level.
Transmitter setup is via serial connection to a PC using MS Windows based Instrument Setup Software plus TEDS IEEE 1451.4 when detected.
Full scale ranges 20.000 mV, 50.000 mV, 100.00 mV, 250.00 mV, 500.00 mV
Input resistance 1 Gohm
Input accuracy at 25°C ± 0.01% of full span ±2 counts
Max applied voltage 35V
Excitation level (factory default) 10 Vdc ± 5%, 120 mA
Other excitation levels (jumper selectable) 5 Vdc ± 5%, 100 mA; 24 Vdc ± 5%, 50 mA
Output Isolation 50 Vdc to meter ground
Conversion rate 60/second (setting for 60 Hz noise rejection)
Input resolution 16 bits (65,536 steps)
CMV, DC to 60 Hz 250V RMS
CMR, DC to 60 Hz 130 dB
NMR at 50/60 Hz 90 dB with no digital filtering
Input filtering User-selectable digital time constants from 80 ms to 9.6 s
Selection of signal ranges Jumpers on signal conditioner board
Selection of serial format, excitation output, analog output Jumpers on main board
Programming Via PC using Instrument Setup software and serial cable
Standards compliance TEDS IEEE 1451.4
Software support TEDS Reader_Editor Software (available as an accessory
Output levels 4-20 mA, 0-20 mA or 0-10V
Compliance at 20 mA 10V (0 to 500 ohm load)
Compliance at 10V 2 mA (5 kohm load or higher)
Output resolution 16 bits (65,536 steps)
Output accuracy ±0.02% of full span
Output isolation Safety rated to 250 Vrms, 4.2 kV per High Voltage Test
Serial formats RS232 or RS485 (half or full duplex), user selectable
Serial protocol Custom ASCII or Modbus (RTU or ASCII)
Modbus Compliance Modbus over Serial Line Specification V1.0 (2002)
Serial connector Detachable screw terminal plugs
Baud rates 300, 600, 1200, 2400, 4800, 9600, 19200 baud
Output isolation Safety rated to 250 Vrms, 4.2 kV per High Voltage Test
Relay type Two solid state relays, SPST, normally open, Form A
Load rating 120 mA at 130 Vac or 170 Vdc, 28 ohms series resistance
Power to Transmitter (standard power) 85-264 Vac or 90-300 Vdc
Power to Transmitter (low voltage power option) 12-32 Vac or 10-48 Vdc
Power Isolation Safety rated to 250 Vrms, 4.2 kV per High Voltage Test
Case dimensions 120 x 101 x 22.5 mm
Case mounting 35 mm DIN rail per EN 50022
Electrical connections Detachable screw plug connectors
Operating temperature 0°C to 70°C
BStorage temperature -40°C to 85°C
Relative humidity 95% from 0°C to 40°C, non-condensing
订货型号
Order Code Model Capacity Range Description
SST-HV N/A Smart Sensor Transmitter
Accessories
SST-RS232AD9 N/A SST-RS232AD9 Cable
SST-USBAD9 N/A Serial to USB Adapter Cable & Disk
配件
DPM-3-AD9 N/A Adapter Connector
DPM-3-PC6 N/A 6 Foot Power Cable
DPM-3-PC12 N/A 12 Foot Power Cable
DPM-3-TRES N/A TEDS Reader Editor Software
DPM-3-DLS N/A Data Logging Software
