LT Description
44
3.1
Rear Module Features
Clock
Overview
The LT has a clock.
Variations in operating conditions can cause a clock shift:
Battery for clock
The controller has one battery for the clock.
In the event of a power interruption, the backup battery retains the time and date for
the controller.
The table describes the characteristics of the battery:
NOTE:
Do not replace the LT unit's battery yourself. The LT uses a lithium battery
for backing up its internal clock data and the battery may explode if it is replaced
incorrectly. When replacement is required, please contact your local LT distributor.
Ambient Temperature
Accuracy (30 days deviation)
0
°
C (32
°
F)
-1...1 minutes
25
°
C (77
°
F)
-2.5...1 minutes
50
°
C (122
°
F)
-5.5...-0.5 minutes
Use
In the event of a transient power outage, the battery powers the
clock.
Duration of backup
At least 5 years at 25
°
C max (77
°
F). At higher temperatures, the
duration of backup is reduced.
Summary of Contents for LT series
Page 1: ... 7 70 70 DUGZDUH 0DQXDO ...
Page 10: ...10 ...
Page 12: ...12 ...
Page 21: ...LT 4201TM 4301TM Hardware Manual 21 KC Markings ...
Page 51: ...LT 4201TM 4301TM Hardware Manual 51 Run Mode Peripherals USB Type A Mini B Interface ...
Page 58: ...LT Installation 58 Rear Module 3 5 Inches Display Module and Rear Module ...
Page 59: ...LT 4201TM 4301TM Hardware Manual 59 5 7 Inches Display Module and Rear Module ...
Page 88: ...LT Installation 88 ...
Page 90: ...LT Unit 90 ...
Page 110: ...LT 4201TM 4301TM Modular Type Analog 110 ...
Page 114: ...Display Modules 114 ...
Page 116: ...LT 116 ...
Page 122: ...Communication Interface 122 ...
Page 130: ......
Page 138: ...Specifications 138 ...
Page 142: ...Maintenance 142 ...