2.1 General description
The C520/C520X / R520/R520X are intelligent two-wire universal transmitters for measurement
with up to two user programmable channels in single, differential, average, minimum or
maximum mode.
The C520/C520X / R520/R520X are intended for:
•Temperature measurements with single or dual resistance thermometers
•Temperature measurements with single or dual thermocouples
•Temperature measurements with one resistance thermometers and one thermocouple
•Temperature difference measurements with resistance thermometers
•Measurements with potentiometers
•Voltage measurements in a range -10…1000 mV
To increase reliability and stability of the system, C520/R520 transmitters have dual sensor
inputs.
The dual sensor inputs enable new safety features such as sensor redundancy and sensor drift
monitoring.
C520S/C520XS/R520S/R520XS are reviewed by exida according to IEC 61508-2:2010 and by SP
for full assessment according to IEC 61508-2 and -3:2010 for use in SIL 2 rated Safety
Instrumented Systems (SIS). For safety instructions see the safety manual.
The C520 and R520 are the standard versions for use in safe (non-hazardous) areas.
The C520X and R520X are Intrinsically Safe versions for use in areas with potentially explosive
atmospheres, Zone 0 (only C520X), 1 and 2.
The C520 and C520X are designed for installation in a B connection head according to DIN EN
50446 or larger.
The R520 and R520X are designed for installation on a 35 mm top-hat rail according to
EN 60715.
The two-wire universal C520/C520X / R520/R520X transmitters are HART® 5 and 6-compatible.
Configuration of the C520/R520 transmitters is possible with:
•HART® 5 and 6 protocol via 4…20 mA output circuit
•HART® 5 and 6 handheld terminal
•The graphic user interface DTM
•The third part PC software with a FSK modem for HART® 5 and 6 communication
•PC configuration software ConSoft with PC Configuration Kit - ICON
The PC configuration software ConSoft is used for configuration, display and documentation.
The current ConSoft version is available for downloading on our website www.inor.com.