The best way to add up to 8 channels of quasi-static 24-bit signal conditioning for voltages, thermocouples, and RTDs is the PAD series.
8-channel Modules for Slow Signals
PAD series modules have their own ADC's built into them, so they output data via RS485 (can be converted to RS232 or USB for connecting to any computer). PAD modules are form & fit compatible with DAQ series modules, and therefore plug into the same module slots in your DEWETRON system, DEWE-RACK, or DEWE-BOOK. PAD modules are intended for use with static and quasi-static signals, such as temperature from thermocouples and RTD's, and DC voltage and current. The two most popular models are the PAD-TH8-P (for temperature), and the PAD-V8-P (for voltage/mA). These modules have a separate 24-bit ADC for each of their eight on-board channels! PAD modules output via the serial interface that is built into each Dewetron system and signal conditioning enclosure. Their data is ported directly into the software, and does not require an additional A/D card, nor do these channels interfere with the dynamic inputs on your Dewetron system. There are some additional PAD modules for different applications, such as the two-channel PAD-CNT2 counter, PAD-AO1 single analog output, and PAD-DO7 seven-channel relay module. |
PAD/EPAD General Information
PAD and EPAD modules for temperature, voltage and current are 8-channel quasi-static modules. They have a separate 24-bit ADC for each channel built in. Therefore, they modules output digitized data directly into DEWESoft software (across the serial interface, which is more than fast enough for this slow-speed data). Here are a few general notes about the primary PAD and EPAD modules:
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