K-Patents PR-01-S - Manual (Page 85)

INSTRUCTION MANUAL FOR K-PATENTS PR-01-S (-AX/FM/CS) DOCUMENT/REVISION No. INM 1/14
Effective: May 15, 2009
83
9. RELAY UNIT
The K-Patents Process Refractometer can be equipped with a separate Relay unit PR-7080 (4 relays) or an
Integrated wash control Relay unit -WR (2 relays).
RELAY UNIT PR-7080 (4 RELAYS)
The Relay unit PR-7080 contains 4 relays (Figure 9.01) from left to right: Relay A, relay B, relay C and
relay D. Above each relay there is a yellow LED. Light indicates that the corresponding relay is ON and
the output contact closed. The enclosure classification is IP 65 (Nema 4X).
Figure 9.01 Relay unit PR-7080, dimensions.
WASH CONTROL RELAY UNIT-WR (2 RELAYS)
The Wash control Relay unit -WR contains 2 relays (Figure 9.02) from left to right: Relay A and Relay B.
Next to each relay there is a yellow LED. Light indicates that the corresponding relay is on and the output
contact is closed. The enclosure classification is IP66 (Nema 4X).
Figure 9.02 Wash control Relay unit -WR.