Rockwell Automation 837E Solid-State Temperature Sensors - Manual (Page 17)

837E Solid-State Temperature Sensors User Manual
Operation
Pub #75054-004-08, March 2013 15
Output setting
• Hysteresis mode
The hysteresis mode enables two-point control via a hysteresis. Depending on the
temperature T, the hysteresis can be set via the switch point SP and the reset point RSP.
• Window mode
The window mode allows for the monitoring of a temperature range.
• Analog output mode
The analog output mode returns a 4…20mA signal proportional to the measured value.
The upper and lower range values can be set by the user.
• Each switch point can be selected as Normally Open (N.O.) or Normally Closed (N.C.)
Figure 8
 Hysteresis mode, Window mode,  Switch status of N.O. contact,  Switch status of
N.C. contact
SP = switch point; RSP = reset point
t
t
1 2
3
3 4
4
p p
SP SP
SP SP
RSP RSP RSP RSP
0
0
0
0
1
1
1
1