Dewetron EPAD2 Series User Manual

43
EPAD2/CPAD2/CPAD3 series modules • Technical Reference Manual • Printing version 1.0.2 • October 04, 2016
Module specications
xPAD2-TH8-P
Input channels 8 isolated voltage inputs
Input range ±1.5 V
Sampling rate max. 12.5 S/sec per channel
Accuracy 0.05 % of reading ±15 µV
Bandwidth (-3 dB) 6 Hz
ADC type 24 Bit Delta Sigma Converter
Input connector
SUB-D 25
Resolution 1 µV
Input impedance typically 1.4 MΩ
Bias current
typically 10 nA
Max. gain drift 25 ppm /°C
Max. offset drift 25 ppm of range /°C
Isolation voltage 350 V
DC
(channel to channel and channel to bus, power and chassis)
Overvoltage protection 15 V
DC
CMRR (50/60 Hz)
130 dB
Supported breakout boxes PAD-CB8-x-P2 standard thermocouple breakout box
PAD-CB8-x-M small size thermocouple breakout box
PAD-CB8-RTD RTD breakout box
EPAD2-TH8-P
Interface RS-485
Communication speed
9600 bps (2400 to 115200 programmable)
Standard settings 9600 bps, 8 data bits, 1 stop bit, no parity, module address 00 hex
Readout speed depending on baudrate and number of channels (typ. 80 ch/sec. @ 9600 bps)
CPAD2-TH8-P
Interface highspeed CAN
Speci cation CAN 2.0B
Communication speed 50 kBaud to 1000 kBaud
Data Format 16 Bit Intel or Motorola
Identi er Types standard; extended
Standard settings 500 kBaud; Intel Format
Readout speed 12.5 Hz, 10 Hz, 5 Hz, 2 Hz, 1 Hz, 0.5 Hz, 0.2 Hz or 0.1 Hz programmable
Bus/Power connector
LEMO EGG.1B.304
Power supply voltage
7 to 40 V
Power consumption
max. 0.5 W
Dimensions
Base module (W x D x H)
Mounting holes distance
129 x 72 x 34.2 mm (5.1 x 2.8 x 1.3 in.) incl. mounting holes
119 x 7 mm (4.7 x 0.3 in.), 4.2 mm (0.165 in.) diameter
Weight
typical 310 g
8 channel thermocouple and RTD amplier
Intelligent amplier with integrated 24-bit A/D conversion
8 galvanically isolated input channels
External CJC
Automatic sensor block detection
Signal connection via 25-pin SUB-D connector
Supported breakout boxes:
PAD-CB8-x-P2: standard thermocouple breakout box
PAD-CB8-x-M: small size thermcouple breakout box
PAD-CB8-RTD: RTD breakout box
EPAD2/CPAD2-TH8-P Module

Dewetron EPAD2 Series Specifications

General

Brand	Dewetron
Model	EPAD2 Series
Category	Control Unit
Language	English