TEXIO DL-2060, Инструкция по эксплуатации

Страница: 50 / 152

44
When
C t


0
:
 
 
100 1
3 2
0
    
t Ct Bt At R R
t
When
C t C
   
630 0
:
 
2
0
1 Bt At R R
t
  
Where:





 

100
1


A
4
10

  

B
8
10

  

C
If you are using SPRTD(Standard Platinum RTD), select SPRTD and specify the seven
coefficients under SPRTD submenu.
The ITS (International Temperature Scale) -90 standard provides two reference
equations for Standard Platinum Thermometers covering temperature range from
18.8033K to 1234.93K. However, one SPRTD usually cannot cover the entire range, so
the temperature range is broken up into a few subranges. These subranges depend on
the calibration point of temperature scale and are based on the melting or triple points of
various pure substances. For an exact list of the elements needed and details on RTD
calibration, refer to NIST Technical Note 1265 “Guidelines For Realizing the International
Temperature Scale of 1990”. In each subrange, the calibration constants required for
that subrange are listed.
Default
The default sensor type in DL-2060 is PT100.
How to set up RTD
You can set up the RTD configuration either through the front panel operation or through
the remote interface operation.
Front Panel Operation
If you are using RTD, press CONFIG and then TEMP. Use
◁
and
▷
to locate SENSOR
submenu. Press ENTER to go to the submenu. Use
◁
and
▷
to locate your sensor type
Press ENTER to select your desired sensor type.
Choosing
USER takes you to a menu where you can specify factors used in the calculation
equation to obtain the temperature. Use
◁
and
▷
to move through the digits and
△
and
▽
to change the numbers to a desired value. Press ENTER to set the value.