Yokogawa DR240 - Manual (Page 66)

3-21 IM DR232-01E
3
Installation and Wiring
Connecting Procedure
1 Check that the power switch of this instrument is turned off.
2 Remove the terminal cover. (the figure below shows DU100-11.)
Terminal cover
Screws for fastening the cover
3 Fasten the signal wires to the terminals as shown in the figure on the next page.
4 Re-apply the terminal cover and fasten the screws.
Note
Make sure that the equipment connected to the signal in-/output conforms IEC (CSA) 950 or IEC (CSA)
1010. Also, make sure to use cables that conform to IEC (CSA) standards.
In case you are using an internal RJC in case of thermocouple input, the following considerations are
necessary to stabilize the temperature at the terminals. Always make sure to re-apply the terminal cover;
The thermal capacity of the wiring should be small (cross sectional area of less than 0.5mm
2 ); Minimize
outside temperature fluctuations as much as possible.
To prevent noise, make sure to ground each unit at the grounding function terminal (below the power
switch) together at one point.
Refrain from wiring the input signals parallel. However, if you do, then the following considerations are
necessary. Ground all equipment at the same point; Do not turn the power of other equipment ON/OFF
during operation; Do not use the burnout function.
3.7 Connecting the Signal Lines