Yokogawa DAQWORX - Manual (Page 20)

1-12 IM WX102-01E
Input Related Functions
•
Remote RJC*(RRJC) ← Can be selected only with optional math
function (/M1 option)
In measuring temperature with thermocouples within the same unit, when the item
to be measured is located at a great distance, you can setup relay terminals near
the item, measure the temperature of the relay terminal section using thermocouples
(reference channel), and use the resultant value as the reference junction
compensation value for the temperature measurement. By connecting a copper wire
between the relay terminal and input terminal of the input module, and a thermocouple
between the DUT and relay terminal, you can measure the temperature of the DUT
without the need for a large amount of expensive thermocouples.
Input module
Thermocouple*
Copper wire
Copper wire
Relay terminal (To be provided by the customer)
Reference channel
* Please use the same type of thermocouple.
Input
terminal
Thermocouple*
Thermocouple*
Measurement period
The measurement period applies to all channels. It can be selected from 0.5, 1, 2, 3, 4, 5,
6, 10, 12, 15, 20, 30 or 60 seconds. However, the settable minimum measurement period
varies as shown below according to the filter ON/OFF setting, type of input module and
A/D integral time.
Integral time : 50/60Hz Integral time : 100ms
Input module Filter OFF Filter ON Filter OFF Filter ON
10CH model 0.5s 3s 4s 12s
20CH model 2s 4s 5s 15s
30CH model 2s 4s 6s 20s
A/D integral time
Set the A/D integral time to 100 ms to maximize the noise elimination effect. To shorten
calculation time, select 50Hz, 60Hz or AUTO (50/60Hz switching automatically). The
settable minimum measurement period varies, as shown below according to the A/D
integral time, filter settings and the number of input module channels.
• Integral time: 50/60Hz
Input module Filter OFF Filter ON
10CH model 0.5s 3s
20CH model 2s 4s
30CH model 2s 4s
• Integral time: 100ms
Input module Filter OFF Filter ON
10CH model 4s 12s
20CH model 5s 15s
30CH model 6s 20s
1.5 DA100 Functions