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All Rights Reserved. Copyright © 2000, Yokogawa Electric Corporation
TI 04L01A01-02E
FAQ
This section contains frequently asked questions regarding the DX series and their answers. Please refer to
this section when you have a question about the product.
【
About Input
】
Question
Answer
What kinds of sensors can be input?
DCV: 20,60,200mV,2,6,20V
Thermocouple: R,S,B,K,E,J,T,N,W,L,U
Resistance temperature detector:Pt100,JPt100,(Cu10,25 option)
On/Off signal: Contact input, TTL
DC current (Requires an external shunt resistor)
Can different settings be made for each input as
desired?
Yes, each input can be set to the desired specifications using the panel keys.
Are the input channels isolated from each other? Yes, the terminals for each input channel are isolated from those of the other
channels.
What is the measurement period?
DX102/104/204/208 : 125ms or 250ms
DX106/112/210/220/230 : 1 sec or 2 sec
(2 sec when A/D integration time is set to
100ms)
What is the A/D conversion resolution?
20,000 count (approx.14 bits)
Can the reference junction compensation (RJC)
be switched on and off?
The RJC can be set as either INT (internal compensation on) or EXT (external
compensation on), for each channel.
Can the burnout upscale/downscale function be
set for a thermocouple input?
The thermocouple burnout detection can be set On/Off and upscale (100%)
and downscale (100%) for each channel.
The criteria for burnout detection are as follows:
If
≦
2k ohm, then normal, if
≧
10M ohm, then burnout;
using a detection current of approx.100nA
Is input scaling possible?
Linear scaling can be set for DC voltage, thermocouple, and resistance
temperature detector input ranges. The unit can be set with up to 6 characters.