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Operating and maintenance instructions Section 2: Installation and set-up
3-9008-701 Rev J January 2015
12 or 24V DC Interface Board 19
Figure 2-3 12V Prover interface board
J1: To optical assembly (pin 6 not used)
J2: To control connection
J3: To water draw hardware kit
J4: To run valve
J5: For external control of S1 and S2
S1: Run — Return
S2: Upstream - Downstream