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Toshiba 8-Channel RTD Input RT318 Specifications

8-channel rtd input.
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RT318
8-channel RTD input
Type
Category
Resistance temperature
detectors
Measuring method
Load current
Temperature measurement
range
Converted data
Input channel
Insulation
Conversion rate
Resolution
Wire resistance correction
range
Overall accuracy
Tepaerature drift
Internal current consumption
Insulation resistance
Withstand voltage
Weight
Internal circuit
1A
1B
CH1
1C
1G
8A
8B
8C
CH8
8G
1
RT318
RTD ( Resistance Temperature Detector ) input
Pt100
Three-wire system
1 mA
-50 ° to +270 ° C (-58 ° to +518 ° F)
800 to 4000
8 channels / module
Photo-coupler insulation (not isolated between the channels)
400 ms / 8 channels
12 bits / 0.025 % ( 0.1 ° C / count )
Within 4 Ω
± 0.3 % (at 25 ° C)
± 100 ppm / ° C
5 Vdc, 600 mA or less
10 M Ω (500 Vdc)
500 Vac, 1 minutes ( between internal and external circuits)
500 g
Current source
1 mA
1 mA
Rref
AG
Rref
AG
AMP
ADC
PC
Wire break
PC
detection
5 Vdc
+15V
-15V
DC/DC
0V
PC : Photo-coupler

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Table of Contents

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   Summary of Contents for Toshiba 8-Channel RTD Input RT318

  • Page 1 RT318 8-channel RTD input Type Category Resistance temperature detectors Measuring method Load current Temperature measurement range Converted data Input channel Insulation Conversion rate Resolution Wire resistance correction range Overall accuracy Tepaerature drift Internal current consumption Insulation resistance Withstand voltage Weight Internal circuit RT318 RTD ( Resistance Temperature Detector ) input...
  • Page 2 Terminal connections Terminal Terminal Function name (NC) No Connection (NC) ( do not connect any wire ) (NC) (NC) (NC) (NC) RTD input channel 1 RTD input channel 2 RTD input channel 3 RTD input channel 4 RTD input channel 5 RTD input channel 6 RTD input channel 7 RTD input channel 8...
  • Page 3 RT318 (1) Status indicator LEDs (PWR/FLT/RUN) 1) PWR PWR will be lit in normal state of analog power supply, and will not be lit in abnormal state. 2) FLT FLT will be lit if an 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.
  • Page 4 How to wire Shielded twisted cable (Pt100) Resistance Temperature Detector Channel number Analog ground FG : Frame ground If measurement values are unstable due to noise influences, change the grounding for the shield in the following order for stable measurement. Shielded twisted cable (Pt100) Shielded twisted cable...

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