Veris Technologies pH Manager - Operating Instructions - Manual (Page 31)

Pub.# OM17-MSP-pH
4-2
Figure 2
Insert hydraulic ends into quick-
couplers, being careful to insert the end marked “P” into the tractor
extension coupler, and the end marked “T” into the tank or return line coupler; in this configuration,
tractor’s hydraulic lever will be secured in raised position. If sampler shoe operates in reverse,
simply reverse hydraulic hoses, or secure lever in lowered position. Note: Be certain whether
tractor or hydraulic power source utilizes open or closed-center hydraulics. Damage to
tractor could occur if not set properly.
The poppet knob is set ‘up’ for open systems, and
‘down’ for closed-center systems – (see settings below.) Press down and turn knob to lock down—
press down, turn and release to allow it to move up to open position.
Figure 3
Open/Closed center hydraulic poppet valve
-Up (out) for open center tractor hydraulics
-Down (in) for closed center tractor hydraulics
12 V Power leads
pH signal cable
EC signal cable