Dewetron EPAD2 Series User Manual

27
EPAD2/CPAD2/CPAD3 series modules • Technical Reference Manual • Printing version 1.0.2 • October 04, 2016
EPAD2/CPAD2-TH8-x Module
8 channel thermocouple amplier
Intelligent amplier with integrated A/D conversion
8 input channels for thermocouples
Available thermocouple types:
xPAD2-TH8-x: K, J, T standard type
xPAD2-TH8-UNIVERSAL: Universal type
RS-485 or CAN interface
Module specications
xPAD2-TH8-x
Input channels 8 isolated Thermocouple Channels
Input signals
xPAD2-TH8-x
xPAD2-TH8-UNIVERSAL
Thermocouple type K, J, T (others on request)
Thermocouple type K, J, T, R, S, N, E, C, U, B
Sampling rate max. 12.5 S/sec per channel
Bandwidth (-3 dB) 6 Hz
ADC type 24 Bit Delta Sigma Converter
Input connector
mini Thermocouple connector
Resolution 0.01 °C for all types
Input impedance typically 1.4 MΩ
Bias current
typically 10 nA
Open thermocouple detection module indicates fullscale if input is open
Accuracy* (including CJC error)
Type K (-270 to 1372 °C):
Type J (-210 to 1200 °C):
Type T (-270 to 400 °C):
Type R (-50 to 1760 °C):
Type S (-50 to 1760 °C):
Type N (-270 to 1300 °C):
Type E (-270 to 1000 °C):
Type L (0 to 900 °C):
Type C (0 to 2300 °C):
Type U (-200 to 600 °C):
Type B (0 to 1820 °C):
-270 to -200 °C -200 to 100 °C -100 to 0 °C 0 to 100 °C 100 to 400 °C 400 to 1000 °C > 1000 °C
10.0 °C** 1.0 °C 0.5 °C 0.4 °C 0.5 °C 0.7 °C 1.0 °C
0.9 °C** 1.0 °C 0.4 °C 0.3 °C 0.4 °C 0.6 °C 1.0 °C
6.5 °C** 1.0 °C 0.5 °C 0.4 °C 0.4 °C - -
- - 2.6 °C 1.8 °C 1.3 °C 1.1 °C 1.3 °C
- - 2.4 °C 1.8 °C 1.4 °C 1.1 °C 1.5 °C
16.0 °C** 1.3 °C 0.6 °C 0.5 °C 0.5 °C 0.6 °C 0.8 °C
5.5 °C** 0.8 °C 0.4 °C 0.3 °C 0.3 °C 0.5 °C
-
- - - 0.4 °C
0.4 °C 0.5 °C -
- - - 0.8 °C
0.7 °C 1.0 °C 1.4 °C
- 1.0 °C
0.6 °C 0.4 °C 0.4 °C 0.4 °C -
- - - 90.2 °C** 9.0 °C 2.3 °C 1.2 °C
*)
+1.0 °C when using xPAD2-TH8-UNIVERSAL.
**)
calculated specification; not verified.
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
EPAD2-TH8
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. @ 9600bps)
CPAD2-TH8
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 12.5Hz, 10Hz, 5Hz, 2Hz, 1Hz, 0.5Hz, 0.2Hz or 0.1Hz programmable
Bus/Power Connector
LEMO EGG.1B.304
Power Supply Voltage
7 to 40V
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
typically 360 g

Dewetron EPAD2 Series Specifications

General

Brand	Dewetron
Model	EPAD2 Series
Category	Control Unit
Language	English