Specifications

16-412 | OWNER’S GUIDE
EPAD2-TH8 and CPAD2-TH8
Intelligent amplier with integrated 24-bit A/D conversion
8 input channels for thermocouples or RTDs via
PAD-CB8 series break-out boxes
Inputs isolated to 350 VDC
Modules daisy-chain together to add more and more channels
EPAD2 series uses RS485 interface
CPAD2 series uses CAN 2.0B interface
Specications
Parameter EPAD2-TH8 and CPAD2-TH8
Input channels: 8 isolated voltage channels (prepared for thermocouple or RTD interface boxes)
Input range: ±1.5 V (fixed)
Sample rate: 12.5 S/s/ch maximum
-3 dB bandwidth: 6 Hz
ADC type:
Sigma delta ADC per channel, 24-bit
(Note: CPAD2 outputs CAN data at 16-bits)
Input connector: SUBD 25-pin connector - please order your choice of PAD-CB8-TH or RTD series break-out boxes
Resolution: 1µV
Input impedance: typically 1.4 MΩ
Supported break-out boxes:
PAD-CB8-x-P2 standard thermocouple breakout box (where x = J, K, or T)
PAD-CB8-x-M miniature size thermocouple breakout box (where x = J, K, or T)
PAD-CB8-RTD RTD breakout box
Temperature drift: typically 20 ppm/°C
Isolation voltage: 350 VDC (channel to channel and channel to Bus, Power and Chassis)
Over-voltage protection: 15 VDC
CMRR @ 50/60 Hz: 130 dB
Interface:
EPAD2 series: RS485
CPAD2 series: CAN BUS 2.0B protocol
Read-out speed:
EPAD2 series: typ. 80 ch/sec.
CPAD2 series: 12.5Hz, 10Hz, 5Hz, 2Hz, 1Hz, 0.5Hz, 0.2Hz or 0.1 Hz programmable
Bus power connector: LEMO EGG.1B.304
Power supply voltage: 7 to 40V
Power consumption: 0.5 W maximum
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: 310 g typical