Installation, Operation and Maintenance Manual
VCIOM-15345-EN Rev. 1
February 2022
27
Start-up Procedure
Section 4: Start-up Procedure
4.6.7
Use the OPEN/CLOSE Control Knob to Power Stroke the actuator. The Electric
Motor (2) will start to run driving Hydraulic Pump (3). The Hydraulic Pump (3)
draws fluid from Reservoir (4) and pushes it into the Biffi G or E-Series hydraulic
cylinder (1). As the actuator strokes, the spring will compress in the
Spring-Return Module.
4.6.8
At the end of the Power Stroke, toggle the LOCAL/OFF/REMOTE Selector Knob to
OFF. Slowly open Manual Bypass Valve (Lockable) (19) and allow the actuator to
Spring-Return back to the start position.
4.6.9
Shut off the electrical power going to the unit, if an (optional) Circuit Breaker
Module is supplied, turn the Circuit Breaker to OFF.
4.7
Self-Calibration
NOTICE
Self-calibration must be performed once the Biffi EHO is mounted to the valve or if the stop
bolts have been adjusted on the actuator.
Self-Calibration establishes the position range of the Biffi EHO. The EHO has the ability to
automatically find its precise full open and full close set points after adjustments to the
mechanical stops is completed. Self-Calibration must be performed after the Biffi EHO is
securely installed on the valve and before the Biffi EHO performs normal operations.
4.7.1
To start Self-Calibration, the Biffi EHO must be in the setup menu. Refer to
Section 8.1, Entering the Setup Menu and Section 8.2, Change Settings for
instructions on how to enter the setup menu, enter the passcode, and navigate
the setup menu.
4.7.2
Navigate the setup menu until [S][C] appears on the LCD display. [S][C] is the
Menu Key for Self-Calibration. Toggle the NO/YES Selector Switch to Yes to enter
self-calibration.
4.7.3
Prior to starting Self-Calibration, the Biffi EHO has the following Self-Calibration
settings that must be confirmed first:
4.7.3.1
Self-Calibration Cycle Count [S][t] – Set the number of full cycles for
the Biffi EHO to cycle during self-calibration. One cycle is defined as one
open and one close stroke. The parameter can be set to 3 to 5. 3 is the
default setting.
4.7.3.2
Pressure Unit [P][u] – Set the pressure unit for the Biffi EHO. The
parameter can be set to 0(psi), 1(bar), 2(kP). 0(psi) is the default setting.
This parameter is factory set.
4.7.3.3
Pressure Spike During Hydraulic Stroke [P][S] – Set the maximum
hydraulic pressure of the Biffi EHO during self-calibration. This setting is
only for motor-based Biffi EHO’s. Depending on the Pressure Units set in
Section 4.7.3.2, this parameter can vary in its display:
—
10 to 50 (psi - in multiples of 100)
—
7 to 35 (barg - in multiples of 10)
—
7 to 35 (kPa - in multiples of 1000)
This parameter is factory set.
