nVent RAYCHEM Elexant 4010i/4020i User Manual
RAYCHEM-AR-H60624-40X0iOpsManual-EN-1905
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2.6.9 Reset Button
The reset button is located just left of the USB port. This reset button can be used to force a controller
reset or Graphical User Interface (GUI) calibration if the GUI becomes un-useable. See Section 5.14.4 for
detailed instructions on GUI calibration.
Figure 13 - Reset button on the Elexant 4010i/4020i
2.6.10 3-Wire RTD Connections
RTD (Resistance Temperature Device) field wires may be terminated on terminal block TB-1 (terminals
1 to 12). A non-limiter version of the controller can accept up to three 3-wire RTD inputs and a limiter
version of the controller can accept up to four 3-wire RTD inputs. Connections are the same for all of the
three 3-wire RTD inputs and optional fourth input for the Limiter. Terminate all cable shields on external
panel mounted field terminal blocks.
Note:
If a unit has a Limiter, the Limiter’s RTD must be connected and operational for the control output
to work. See Section 4.1 for a detailed description of the Safety Limiter.
Figure 14 - 3-wire RTD connections
2.6.11 2-Wire RTD Connections
RTD (Resistance Temperature Device) field wires may be terminated on block TB-1 (terminals 1 to 9). A
maximum of three 2-wire RTD inputs can be connected. Connections are the same for all of the three
2-wire RTD inputs. Terminate all cable shields on external panel mounted field terminal blocks.
