User Manual HTS801
Humidity and Temperature Sensor for High Humidity and Chemically Polluted Conditions | 17
3.5.4.
Alarm Module (Option AM2)
The module offers two freely configurable relay outputs for alarm or control purposes. Various operation modes
are available including switch hysteresis, switch window and error indication. The error modes can be configured
independently from each other. The measurands at the outputs as well as switching points, hysteresis and the
normal.state.(standard./.inverted).can.be.set.via.PCS10.Product.Configuration.Software.or.using.the.push-
buttons (see chapter 11.3 Optional Menus, Fig. 55 Alarm output).
Switch Hysteresis Mode
The switching behavior is determined by entering a switching point and an associated hysteresis value.
t
closed
open
closed
open
Normal state: Standard
Normal state: Standard
Terminal 1-2 / 4-5
Terminal 2-3 / 5-6
Switching point
Hysteresis
RH [%]
Fig. 16 Example hysteresis mode on both alarm outputs using normal state standard
Additionally, detected errors are signaled at the alarm output.
t
closed
open
closed
open
Error occurs
No error
RH [%]
Switching point
Hysteresis
Terminal 2-3
Terminal 5-6
Normal state: Standard
Normal state: Inverted
Fig. 17 Example of hysteresis mode with error occurring.
Switch Window Mode
The switching behavior is determined by entering two switching points and two associated hysteresis values.
