User manual - ATR121/141 -
3
Summary
2 Model identification ...........................................................................6
3.1 General features ......................................................................6
4 Hardware features ..............................................................................7
4.1 Software features ....................................................................8
5 Dimensions and installation ............................................................8
6.1 Wiring diagram .......................................................................9
7 Display and keys functions .............................................................13
Numeric indicators (Display) .............................................13
7.2 Meaning of status lights (Led) ...........................................13
8 Controller functions .........................................................................14
8.1 Modifying main setpoint and alarm setpoint values..14
9.1 Auto-tune ................................................................................15
9.2 Manual tuning .......................................................................15
9.3 Automatic tuning .................................................................16
9.4 Memory card (optional) ......................................................16
9.5 Latch On function .................................................................17
9.6 Dual action Heating-Cooling ............................................19
10 Dead band function .........................................................................21
11 Serial communication .....................................................................22
12.1 Modify configuration parameters ....................................26
12.2 Loading default values ........................................................26
12.3 Configuration parameters ..................................................27
13 Alarm Intervention Modes ..............................................................35
14 Table of anomaly signals ................................................................38
15 Summary of Configuration parameters .....................................39
Summary of Contents for ATR 121
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