background image

RT318

 

4

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

If measurement values are unstable due to noise influences, change the grounding for 
the shield in the following order for stable measurement. 
 
 

(1) 

 
 
 
 
 
 
 
 
 

(2) 

 
 
 
 
 
 
 
 
 
 

(3) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

How to wire 

To minimize the influences of the wire resistance, be sure the wire 
length to be same of each cable from the terminal nA , nB or nC to 
RTD. 

Supplementary

 

nA

nB

nC

nG

RTD 

(Pt100) 

AG

FG

Internal circuit side 

Shielded twisted cable

RTD : Resistance
      Temperature 

Detector

n    : Channel number
AG  : Analog ground
FG  : Frame ground 

RTD

(Pt100)

AG 

Internal circuit side 

Shielded twisted cable 

nA

nB

nC

nG

FG

RTD

(Pt100)

AG

nA

nB

nC

nG

FG

Internal circuit side 

Shielded twisted cable 

RTD

(Pt100)

AG

nA

nB

nC

nG

FG

Internal circuit side 

Shielded twisted cable 

Содержание 8-Channel RTD Input RT318

Страница 1: ... Conversion rate 400 ms 8 channels Resolution 12 bits 0 025 0 1 C count Wire resistance correction range Within 4Ω Overall accuracy 0 3 at 25 C Tepaerature drift 100 ppm C Internal current consumption 5 Vdc 600 mA or less Insulation resistance 10 MΩ 500 Vdc Withstand voltage 500 Vac 1 minutes between internal and external circuits Weight 500 g Internal circuit Internal circuit Buffer memory 5 Vdc ...

Страница 2: ...3C 18 3G 19 4A 20 4B RTD input channel 4 21 4C 22 4G 23 5A 24 5B RTD input channel 5 25 5C 26 5G 27 6A 28 6B RTD input channel 6 29 6C 30 6G 31 7A 32 7B RTD input channel 7 33 7C 34 7G 35 8A 36 8B RTD input channel 8 37 8C 38 8G 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 N C N C N C 1B 1G 2B 2G 3B 3G 4B 4G 5B 5G 6B 6G 7B 7G 8B 8G N C N ...

Страница 3: ...n error has occurred in the module 3 RUN RUN will be lit in normal state of the module and will not be lit in abnormal state 2 Unused terminals 3 RTD input terminals 1A 1B 1C 1G to 8A 8B 8C 8G These terminals will be connected with external RTD signals Name Lit Not lit PWR Normal state abnormal state FLT Error occurred Normal state RUN Normal state abnormal state 2 3 1 ...

Страница 4: ... same of each cable from the terminal nA nB or nC to RTD Supplementary nA nB nC nG RTD Pt100 AG FG Internal circuit side Shielded twisted cable RTD Resistance Temperature Detector n Channel number AG Analog ground FG Frame ground RTD Pt100 AG Internal circuit side Shielded twisted cable nA nB nC nG FG RTD Pt100 AG nA nB nC nG FG Internal circuit side Shielded twisted cable RTD Pt100 AG nA nB nC nG...

Отзывы: