Multi-channel A/D converters with CAN or RS485 interface
External, multi-channel CPAD3/CPAD2/EPAD2 modules combine analog signal conditioning and A/D converter in an extreme rugged box. Available with CAN or RS485 interface.
Used for precision data acquisition of slow signals in rough environments, e.g. in an engine bay of a vehicle, high quality data logging of environmental conditions or expansion of dynamic DEWETRON instruments with 12 or 100 Hz channels.
CPAD3 Modules
CPAD3 series are multi-channel modules and combine analog signal conditioning and A/D converter in an extremely rugged box. Each of the 8 measurement channels has its own A/D converter with a 100 Hz sampling rate. They have a standard CAN interface for data output and stand out with high galvanic isolation of 1500 V and a very low-noise 20-bit A/D converter per channel.
| CPAD3 MODULES (CAN 2.0B) |
ISOLATED CHANNELS | INPUT RANGES |
SAMPLING RATE |
RESOLUTION |
ISOLATION | |
|---|---|---|---|---|---|---|
| CPAD3-V8 |  |
8 x voltage inputs | Max. ±50 V | 100 S/s | 20-bit | 1500 VDC |
| CPAD3-TH8 |  |
8 x thermocouple inputs | Types K, T, J, E, R, S, B, N, C, U |
100 S/s | 20-bit | 1500 VDC |
CPAD2 Modules
CPAD2 modules provide the measurement data via high-speed CAN, the same as CPAD3 series. But in comparison to CPAD3, they have a 24 bit multi-channel AD converter with 12 Hz sampling rate and offer 350 V galvanic isolation.
| CPAD2 MODULES (CAN 2.0B) |
ISOLATED CHANNELS | INPUT RANGES |
SAMPLING RATE |
RESOLUTION |
ISOLATION | |
|---|---|---|---|---|---|---|
| CPAD2-V8 | |
8 x voltage inputs | Max. ±50 V | 12 S/s | 24-bit | 350 VDC |
| CPAD2-TH8 |  |
8 x thermocouple inputs | Types K, T, J, E, R, S, B, N, C, U |
12 S/s | 24-bit | 350 VDC |
| CPAD2-LA8 |  |
8 x current inputs | Max. ±30 mA | 12 S/s | 24-bit | 350 VDC |
| CPAD2-RTD8 |  |
8 x Resistance Temperature Detector inputs |
RTD: Pt100, Pt200, Pt500, Pt1000, Pt2000 Resistance: 0 – 999.99 Ohm |
12 S/s | 24-bit | 350 VDC |
EPAD2 Modules
EPAD2 modules are 24 bit multi-channel AD converts that provide the data via RS-485 interface. With 12 Hz sampling rate and 350 V galvanic isolation. For EPAD2 series there is an interface module – EPAD2-USB– which converts the RS485 data to USB. DEWETRON systems have an EPAD2 interface, for simply connecting EPAD2 modules as static channel expansion by a single cable.
| EPAD2 MODULES (RS-485) |
ISOLATED CHANNELS | INPUT RANGES |
SAMPLING RATE |
RESOLUTION |
ISOLATION | |
|---|---|---|---|---|---|---|
| EPAD2-V8 | |
8 x voltage inputs | Max. ±50 V | 12 S/s | 24-bit | 350 VDC |
| EPAD2-TH8 | |
8 x thermocouple inputs | Types K, T, J, E, R, S, B, N, C, U |
12 S/s | 24-bit | 350 VDC |
| EPAD2-LA8 | |
8 x current inputs | Max. ±30 mA | 12 S/s | 24-bit | 350 VDC |
| EPAD2-RTD8 | |
8 x Resistance Temperature Detector inputs |
RTD: Pt100, Pt200, Pt500, Pt1000, Pt2000 Resistance: 0 – 999.99 Ohm |
12 S/s | 24-bit | 350 VDC |
