Z-4RTD-2, 4-ch Thermoresistance Input ModBus

Description:

The Seneca Z-4RTD has 4 configurable RTD input channels. Each channel can be configured as a different RTD type with different filtering, the end user can also select between higher sampling time or higher resolution for the device.
The 4 channel input it receives can then be integrated to a ModBus RTU network using a RS485 serial connection.

Specification:

• RTD Input: PT100, PT500, PT1000, NI100
• Resolution: 14 or 13 bit + sign (5 μV)
• Protection 400 W/s
• Isolation 1500 Vac, between channels, power and communication ports
• Overload Protection 60 V
• Status Indicators Error, Power, RX & TX
• Operating Temp -10 to 65 °C (14 to 149 °F)
• Storage Temp -20 to 85 °C (-4 to 185 °F)
• Humidity 30 to 90% at 40 °C non-cond.
• Communications Port RS-485 - 2-Wire
• Speed (baud) 9600, 19,200, 38,400, 57,600
• Sampling Time 400 ms at 14 bit, 200 ms at 13
• Protocol Modbus RTU
• RTD Standard
• PT100, PT500 & PT1000 EN60751/A2 (ITS-90)
• Class\Base Precision 0.05
• RTD Input Error
• Calibration 0.04%
• Linearity 0.025%
• Thermal Stability 0.01%/ °C
• Excitation current
• PT500 and PT1000 333 μA nominal
• PT100 and NI100 875 μA nominal
• Lead Length Comp 20 Ω for PT100 -30 Ω all others
• Input Filter 1-60 seconds
• Detachable "plug in" screw terminals
• Compact DIN Rail mounting design, just 100 x 112 x 17.5 mm
• Power Supply
• 10 to 40 Vdc
• 19 to 28 Vac 
• 50 or 60 Hz

User configuration will require the S117P1 device (which can be purchased here) and the free EASY-SETUP software (which can be downloaded below).

Please refer to the following documentation for additional information: