Yokogawa digitalYEWFLO (DY) - Manual (Page 42)

IM 1F2B4-01-YIA
Page 46
INSTALLATION
3.4 C
ABLE
3.4.1 Field terminating the signal cable (YF011-0*E)
Both ends of the cable must be finished in accordance with the following instructions. The maximum
cable length is 65 feet (20 meters). The YEWFLO cable is a special double-shielded cable available
only from Yokogawa Industrial Automation. Proper termination is critical to ensure the meter
performs as specified. Do not splice additional cable to add length. Please follow all steps
completely.
If you are shortening the cable in the field, to simplify your work, cut off excess length from the
flowmeter end of the cable only and re-terminate. The flowmeter end requires only three (3)
termination’s, while the converter end requires four (4).
Figure 3.4.1: YF011 Signal Cable
Caution : Do not allow the “conductive layer” (black covering over signal wires A & B) to short to case
ground or any other conductor. Please follow the termination procedure to insure proper termination
and flowmeter performance.
Flowmeter end of the cable
1. Strip the outer polyethylene jacket,
outer braided shield, inner jacket,
and inner braided shield to the
dimensions shown.
Caution : Don’t cut the uninsulated drain wires.
2. Strip off the black conductive layer
on each wire exposing the red or
white insulation underneath to the