4+1 Channel 24 Bit Analog to SDI-12 Converter TBSAB02

DESCRIPTION

The TBSAB02 is a 4+1 channel analog to SDI-12 interface for 24 Bit A/D conversion of sensor signals. A/D conversion and configuration is controlled via SDI-12 commands. The interface is equipped with signal conditioning circuits which can be customized for various input voltage ranges. It offers low current consumption and comes in a Fibox PC081206 IP67 rated housing. Each channel can be independently scaled with a 3rd order polynomial to enable gain and offset calibration of the connected sensors. A built in 3 wire interface for direct connection of PT100/PT1000 offers additional versatility. The TBSAB02 provides digital signals for the power management of the connected sensors. Four on board, SDI-12 controlled high side FET- switches are provided to power on/off connected sensors.

Specifications

ANALOG to SDI-12 Interface
4+1 24 Bit Sigma Delta ADC channels
4 analogue inputs; configurable as 4-20mA current loop or 0-2,5V voltage inputs; other voltage ranges upon order
Input over-voltage protection
3-wire PT100/1000 interface
Configurable sensor power management signal for each channel
Configurable slope and offset for each channel
±0,025%, 2ppm/°C reference voltage
Chopper stabilized buffer for low offset
50Hz & 60Hz line rejection filter
SDI - 12 Standard V1.3
Plug and Play
6 - 16V supply voltage
94 mm x 71 mm x 15mm
IP67 housing – Fibox PC081206
Operating Temperature Range:
- 40°C … + 85°C
349

TBSAB02_Manual.pdf

(1052k)

Jason Lin,

2020年11月18日上午12:51

v.1

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