LG G3F-TC4A User Manual

Chapter 2 SPECIFICATIONS
2 - 7
2.4.5 Displaying Temperature Conversion Value
The detected temperature value converted into through sampling processing of a thermocouple in-
put value times by ten and that is displayed as a digital value, which is called temperature conver-
sion value.
[Example] When a real temperature is 100.5°C
• Detected temperature value : 1005
( Digital value stored in the output variable TEMP of the reading function block.
Digital value stored in the internal memory)
2.4.6 Displaying Digital Value
The thermocouple input module gives a digital value which has been calculated from a temperature
value to be suitable for process control of the PID control module. This value can be used as an in-
put value (Process Value) in the PID control module.
Thermo-
couple type
Type K Type J Type E Type T Type B Type R Type S
Overall
measuring
temp. range
14000
(-2000
to
12000)
10000
(-2000
to
8000)
7500
(-1500
to
6000)
6000
(-2000
to
4000)
14000
(4000
to
18000)
17500
(0
to
17500
17500
(0
to
17500)
Minimum
measuring
temperature
-2000 -2000 -1500 -2000 4000 0 0
[Example 1] Digital value when a real temperature is 400°C of thermocouple type J.
[Example 2] Digital value when a real temperature is 700°C of thermocouple type K.
16000
Digital value =
Overall measuring
temperature range
(temperature conversion value – minimum measuring temperature)
16000
Digital value =
10000
= 9600
[4000-(-2000)]
16000
Digital value =
14000
= 10285.71428571 (round off at first digit of fraction)
= 10268
[7000-(-2000)]

LG G3F-TC4A Specifications

General

Brand	LG
Model	G3F-TC4A
Category	Controller
Language	English