6821 Programmable dual-channel transmitter
• 2 analog inputs, 0/4..20 mA or 0..5/10V, mV, Pt100, thermocouples
• 2 analog outputs 0/4..20 mA or 0..5/10V
• 2 alarm relays
• Mathematical and conditional operations using easy logic language (ELo)
• Serial communication RS-485
• Modbus RTU and Nokeval SCL protocols
• Power supply 90..240 VAC or 24 VDC
• Configuration using MekuWin PC program or using front panel buttons
6821 is a rail-mounted two-channel measurement unit for temperature sensors and other
electrical inputs. The unit has two analog outputs or alternatively one analog and one serial
output.
The serial output can accept Nokeval SCL and Modbus RTU commands. Up to four logical
alarms can control two common alarm relays. The inputs are galvanically isolated from the
outputs and the supply voltage, but not from each other.
Mathematical and conditional operations may be realized with a simple programming language. There is a four-digit display and four pushbuttons, that can be used to monitor the readings and to change the settings. The settings can also be edited from a personal computer
using the RS-485 serial connection