OV-110 manual 122016.indd

OV-110 manual 122016.indd
Series OV-110
Omni-Valve
Instruction Manual
The information contained in this manual was current at the time of printing. The most current versions of all
Hydro Instruments manuals can be found on our website: www.hydroinstruments.com
OV-110 Rev. 12/20/16
1
Hydro Instruments
Series OV-110 Omni-Valve
Table of Contents
I. Functions, Capabilities, and Construction ........................................................................3
1. Safety Precautions
2. Function of the OV-110
3. Physical Installation
4. Chemical Types and Ranges
5. Physical Design
6. Electrical Power, Inputs & Outputs
7. Alarm Conditions & Acknowledgement
8. Dip Switches
II. Control Methods ...............................................................................................................8
1. Flow Pacing (Proportional)
2. Residual (Set Point)
3. Compound Loop (PID)
4. Dual Input Feed Forward
5. Step Feed
6. Dual Set Point
III. User Interface ..................................................................................................................15
IV. Motion Control, Valve, and 10 Point Linearization ........................................................15
V. Operation Mode Screens .................................................................................................17
VI. Configuration Mode Screens...........................................................................................18
VII. Advanced Calibration Mode Screens..............................................................................22
1. Purge Feature (for liquid feed systems)
2. Dosage Method Selection
3. Flow Stop
4. External Duty/Standby and Auto/Manual control options
VIII. Troubleshooting and Maintenance ..................................................................................25
1. Factory Default
2. Service
Figures:
1.
2.
3.
4.
5.
Installation Drawing .....................................................................................................3
OV-110 Controller Electronics .....................................................................................4
Pinout Diagram for OV-110 Circuit Board...................................................................7
Figures 4-9: Control Schemes ............................................................................... 8-14
Figures 10-12: Valve Linearization ..................................................................... 15-16
Drawings:
OV-110 ELE EXP & BOM ....................................................................................... 26-27
OV-110 EXP & BOM ............................................................................................... 28-29
2
I. FUNCTIONS, CAPABILITIES, AND CONSTRUCTION
1. SAFETY PRECAUTIONS
GENERAL: Be sure to follow all applicable and prudent safety precautions when working with
chemicals and electrical equipment.
ELECTRICAL: The circuit board and incoming A/C power line do include electrical shock risk.
Take care to avoid electrical shocks and do not touch any part of the circuit board or A/C power line
unless you are certain that A/C power has been disconnected from the system.
CHECK FOR DAMAGE: Before removing the product from the shipping packaging, carefully
check the equipment for damage. If any product is found damaged, do not put it into operation or
install it. Contact Hydro Instruments to discuss repair or replacement of the damaged equipment.
2. Function of the OV-110: The OV-110 Omni-Valve is designed to automatically control chemical feed
rate based on one or more electrical input signals. Figure 1 shows an example installation drawing.
FIGURE 1
3. Physical Installation: The Omni-Valve must be mounted in the chemical feed line downstream from
a chemical flow meter and upstream from the feed point (i.e. ejector, vacuum pump or check valve diffuser). Consider Figure 1 above.
NOTE: If the automatic valve is being used for liquid chemical feed such as sodium hypochlorite,
having the chemical physically higher than the valve will create a hydrostatic pressure which could
cause failure of the valves internal seals.
4. Chemical Types and Ranges: For gaseous chemical feed applications, the OV-110 Omni-Valve is
most commonly used for chlorine, sulfur dioxide, ammonia, and carbon dioxide. For liquid chemical
feed applications, the OV-110 Omni-Valve is most commonly used for sodium hypochlorite, hydrochloric acid, sodium bisulfite, sodium bisulfate, sodium chlorite, and aqueous ammonia solutions.
Consult Hydro Instruments for usage in other chemical applications and for available feed rate ranges.
3
FIGURE 2 – OV-110 CONTROLLER ELECTRONICS
Modbus
Connections
OV-110
Printed Circuit Board
Micro SD
Card Slot
Power Supply Board
Motor Switch
Toggle
Switch
Stepper Motor
Motor Wires
AC Power
Terminal Block
OV-110
Mechanical
Subassembly
OV-110 CONTROLLER
ELECTRONICS
4
Date: December 2016
Dwg. No. OV-110-CONTROLLER
5. Physical Design: (See Figure 2)
The Omni-Valve is the combination of a microprocessor controller and control valve in one compact
unit. Both the microprocessor and the valve motor assembly are housed together in one NEMA 4X
rated enclosure. The valve body is mounted onto the bottom face of the enclosure. The valve body
is constructed of solid machined PVC parts. There are several different valve body sizes available.
Valve shafts, valve stems, valve seats, and O-ring materials are selected for maximum corrosion
resistance to the chemical being used. Two PTFE shaft seals separate the chemical from the interior
of the enclosure. There is also a vent port to the outside in between the two shaft seals for additional
protection against chemical entry to the enclosure. A variety of valve seats and valve stems are
available to provide many different chemical feed rate ranges.
6. Electrical Power, Inputs & Outputs: (See Figure 3) The Omni-Valve has the following electrical
connections.
a. Offered in either 120 VAC or 240 VAC. (50 to 60 Hz)
b. Three analog input channels. Each channel has dip switches to select between 4-20mA and 0-10V.
Each channel has a 150 Ohm input impedance.
FLO – Used for water flow meter or proportional control input signals.
RES – Used for residual, ORP, or other set point input signals.
DOS – Various user selected uses available. See Sections II and VII.2.
c. Four 24 VDC relay input channels (SF1 – SF4). Used for Step Feed Control. NOTE: The acceptable range is 12 to 24 VDC. See Section II.6. If not using step feed control, then SF3 can be used
for external selection of duty/standby. Also, (if enabled in Section VII.4 then) SF4 can be used for
remote control of Auto/Manual mode. See Figure 3 and Section VII.4.
d. Two 4-20mA analog output channels. Both represent chemical feed rate (based on valve position).
Each channel has a 250 Ohm output impedance.
e. There are two relays. Both NC and NO connections are available. Rating is 10 Ampere (resistive)
and 250 VAC 250 VDC.
See Figure 3 and Section VI screens 6b and 6c. Each relay can be individually selected to indicate
either normal alarms, Auto/Manual, or Duty/Standby.
f. Modbus RS-485 communication. The Omni-Valve is equipped for remote display and
communication using the modbus RS-485 standard. To do this, you must define the node, baud
rate and parity of the system. For more information on how to setup modbus refer to the Modbus
Communication Setup document.
7. Alarm Conditions & Acknowledgement: Alarm conditions are displayed on the alarm screen in
operation mode. See Section V.
key to acknowledge the alarm.
Acknowledgement – Press the “minus”
NOTE: Any of the below contacts will activate this alarm relay. The alarm is non latching.
5
8. Dip Switches: These switches are used to select whether the analog input channels are to be used for
4-20 mA or 0-10 Volts. They are always set for 4-20 mA at the factory. (See Figure 3.)
a. Switch 1 and 2 set the FLO (PV1) input channel for a 4-20 mA input when switch 1 is on (up) and
switch 2 is off (down). The FLO input channel is set for 0-10 Volts when switch 1 is off (down)
and switch 2 is on (up).
b. Switch 3 and 4 set the RES (PV2) input channel for a 4-20 mA input when switch 3 is on (up) and
switch 4 is off (down). The RES input channel is set for 0-10 Volts when switch 3 is off (down)
and switch 4 is on (up).
c. Switch 5 and 6 set the DOS (PV3) input channel for a 4-20 mA input when switch 5 is on (up) and
switch 6 is off (down). The DOS input channel is set for 0-10 Volts when switch 5 is off (down)
and switch 6 is on (up).
Control Mode
Flow Pacing
Flow Pacing
Residual/ORP
Residual/ORP
Residual/ORP
Compound Loop
or Feed Forward
Compound Loop
or Feed Forward
Compound Loop
or Feed Forward
Compound Loop
or Feed Forward
Compound Loop
or Feed Forward
6
Alarm Condition
Flow Signal Loss
Low Flow
Res/ORP Signal Loss
Low Residual
High Residual
Description
PV1 Signal below 4 mA
PV1 Signal below set point*
PV2 Signal below 4 mA
PV2 Signal below set point***
PV2 Signal above set point***
Action
Valve Close or Hold Position**
None
Valve Close or Hold Position**
None
None
Flow Signal Loss
PV1 Signal below 4 mA
Switch to Residual/ORP Condn 1
Low Flow
PV1 Signal below set point*
None
Res/ORP Signal Loss
PV2 Signal below 4 mA
Switch to Flow Pacing Control
Low Set Point
PV2 Signal below set point*** None
High Set Point
PV2 Signal above set point*** None
Micro SD
Card Reader
V+
A
B
V-
Modbus
Terminals
+ –
12VDC
Power
Ribbon Cable
to Display
Pin Connector
to Stepper Motor
Output relay alarms
or Auto/Manl
Motor
or Duty/Standby
Switch
MSW GND NO1 CO1 NC1 NO2 CO2 NC2
OMNI-VALVE
CIRCUIT BOARD
SF1+
SF1SF2+
SF2SF3+
SF3SF4+
SF4-
DOS
GND
RES
GND
FLO
GND
AO1
GND
AO2
GND
Date: December 2016
Dwg. No. OV-PCB-2
SF4 (See Section VII.4.b)
External AUTO/
MANL Control
SF3 (See Section VII.4.a)
External Duty/
Standby Control
12VDC to 24VDC
(step feed inputs)
Analog Outputs
Analog Inputs
Dip switches for FLO,
RES, and GND inputs
FIGURE 3 – PINOUT DIAGRAM FOR OV-110 CIRCUIT BOARD
7
II. CONTROL METHODS
The OV-110 Omni-Valve offers the following control methods. The control method is selected in the
Configuration Mode (See Section VI).
1. Flow Pacing (Proportional): Figure 4 below shows an example installation.
a. Application: This control method is suitable when water quality is consistent, but water flow rate
is variable.
b. Control Signals: In this case, a 4-20mA (or 0-10V) signal from the water flow meter (measuring
water flow just upstream from the injection point) is input to the FLO/GND input channel of the
OV-110.
NOTE: If desired, a proportional 4-20mA control signal from any PLC can be used in the same
fashion.
c. Control Concept: Chemical feed rate is adjusted in direct proportion to the input signal with no
delay.
d. Initial Settings: In the Configuration Mode (Section VI), the flow settings will need to be adjusted
to match the water flow meter being used.
e. User Interaction: During operation, the user only needs to adjust the dosage setting to adjust the
ratio of chemical feed rate to water flow rate. Optionally the dosage can be remotely adjusted by
means of the DOS/GND input channel. See Section VII.2.
FIGURE 4 – FLOW PACING
8
2. Residual/ORP (Set Point): Figure 5 below shows an example installation.
a. Application: This control method is suitable when water quality is variable, but water flow rate is
constant or relatively steady.
b. Control Signals: In this case, a 4-20mA (or 0-10V) signal from the residual analyzer (measuring
residual just downstream from the injection point) is input to the RES/GND input channel of the
OV-110.
c. Control Concept: Chemical feed rate is periodically adjusted in order to keep the resultant
chlorine residual (or ORP or similar chemical concentration) on the user determined set point.
i. Sample point selection is very important. Sample point must be at least 10 x pipe diameter
downstream (to ensure complete mixing prior to sampling) and the lag time (“lag time” = the
time it takes the chemical to travel from the Omni-Valve to the residual analyzer) should be
minimized to optimize control (ideally limit this time to less than 5 minutes).
ii. The Omni-Valve will only adjust chemical feed rate once every lag time. Each time the lag
time expires, the Omni-Valve will compare the residual reading with the residual set point and
if the residual reading is not on set point, then the chemical feed rate will be adjusted to bring
the residual back toward the set point.
d. Initial Settings: In the Configuration Mode (Section VI):
i. The residual settings will need to be adjusted to match the residual analyzer that is being used.
ii. The lag time will need to be measured on site and then entered.
iii. Dead Band: The Dead Band allows for an adjustable range around the set point that is considered acceptable for residual. As long as the residual reading is within this range (+ or -) from
the set point, then the residual is considered to be on set point.
iv. Integral: The Integral “I” controls the magnitude of each chemical feed rate adjustment. The
typical range is 10% < I < 30%. If the integral setting is too low, then the Omni-Valve will be
too slow in making adjustments and if the integral setting is too high, then it will continually
overshoot the set point (residual oscillating between too high and too low).
e. User Interaction: During operation, the user only needs to adjust the residual set point. Optionally
the set point can be remotely adjusted by means of the DOS/GND input channel. See Section VII.2.
FIGURE 5 – RESIDUAL (SET POINT)
9
3. Compound Loop (PID): Figure 6 below shows an example installation.
a. Application: This control method is suitable when both water quality and water flow rate are variable.
b. Control Signals: In this case, two input signals are required:
i. A 4-20mA (or 0-10V) signal from the water flow meter (measuring water flow just upstream
from the injection point) is input to the FLO/GND input channel of the OV-110.
ii. A 4-20mA (or 0-10V) signal from the residual analyzer (measuring residual just downstream
from the injection point) is input to the RES/GND input channel of the OV-110.
c. Control Concept: Both Flow Pacing (Section II.1) and Residual (Section II.2) are being carried
out simultaneously. Review both above Flow Pacing and the Residual Control sections.
d. Initial Settings: In the Configuration Mode (Section VI):
i. All of the settings from both Flow Pacing (Section II.1) and Residual (Section II.2).
ii. Flow Stop: If the water flow completely stops, then the Omni-Valve will continue to adjust
based on residual. This can be avoided by setting a lower limit on the flow signal below which
the automatic control will automatically turn off. See section VII.3.
iii. Variable lag time: Since the lag time is often approximately inversely proportional to the water
flow rate (meaning as the water flows faster, the lag time will decrease), Compound Loop
Control method allows for a variable lag time. If variable lag time is to be used, then it needs to
be enabled, the lag time, the water flow rate at that entered lag time, and a maximum allowable
value for lag time must all be entered in the Configuration Mode.
e. User Interaction: During operation, the user will adjust both the dosage (Section II.1) and the
residual set point (Section II.2). Optionally the dosage or the set point can be remotely adjusted by
means of the DOS/GND input channel. See section VII.2.
FIGURE 6 – COMPOUND LOOP (PID)
10
4. Dual Input Feed Forward: Figure 7 below shows an example installation.
a. Application: Chemical feed rate is controlled in proportion to the mass flow rate of a second
chemical that is already in the water stream. This is most commonly used in de-chlorination and
chloramination applications. In these applications, chemical is being injected in order to react with
another chemical that is already present in the water stream.
b. Control Signals: In this case, two input signals are required:
i. A 4-20mA (or 0-10V) signal from the water flow meter (measuring water flow just upstream
from the injection point) is input to the FLO/GND input channel of the OV-110.
ii. A 4-20mA (or 0-10V) signal from the residual analyzer (measuring residual of the target
chemical just upstream from the injection point) is input to the RES/GND input channel of the
OV-110.
c. Control Concept: This method requires a water flow signal and a residual signal for the other
chemical that is already present in the water stream. The Omni-Valve uses these two signals to
calculate the mass flow rate of the other chemical in the water stream. The Omni-Valve will then
control chemical feed rate in proportion to this mass flow rate.
d. Initial Settings: In the Configuration Mode (Section VI):
i. All of the settings from both Flow Pacing (Section II.1).
ii. Residual (Section II.2) signal reading parameters only (no Dead Band, Lag Time, or Integral).
e. User Interaction: During operation, the user only needs to adjust the dosage setting to adjust the
ratio of chemical feed rate to the other chemical mass flow rate. Optionally the dosage can be remotely adjusted by means of the DOS/GND input channel. See Section VII.2.
FIGURE 7 – DUAL INPUT FEED FORWARD
11
5. Step Feed: Figure 8 below shows an example installation.
a. Application: This control method is useful for systems injecting chemical into a line downstream
of one to four supply pumps when each of the pumps has a fixed flow rate (up to four wells or
other pumps feeding one line).
b. Control Signals: In this case, there will be up to four 24VDC dry contact input signals. These
signals are used to indicate whether each pump is on or off. The signals are to be connected to the
SF1+/SF1-, SF2+/SF2-, SF3+/SF3-, and SF4+/SF4- input channels. NOTE: The acceptable range
is 12 to 24 VDC.
c. Control Concept: Up to four relay contact signals are input to the Omni-Valve. Each relay can be
allotted a fixed chemical feed rate. The Omni-Valve chemical feed rate is then set to the sum of the
feed rates allotted to the relays that are active.
d. Initial Settings: In the Configuration Mode (Section VI), the chemical feed rate for each input
channel must be entered.
e.
User Interaction: During operation, no user interaction is required.
FIGURE 8 – STEP FEED
12
6. Dual Set Point: Figure 9 shows an example installation.
a. Application: This control method is designed for applications injecting chemical upstream of
a contact chamber. In such cases, a residual analyzer nearby the injection point can be used to
control chemical injection. This allows for automatic control of residual at the injection point.
However, control of the residual at the outlet of the contact chamber is the ultimate goal. If water
quality remains constant then there will be a fixed drop in residual between the injection point
and the contact chamber outlet. However, water quality variations will cause this residual drop to
be variable. This control method is used to overcome this problem and allow for fully automated
chemical feed rate control in such situations.
b. Control Signals: In this case, two input signals are required:
NOTE: Refer to Section VII.2.d. for information on how to activate the DOS/GND input.
i. A 4-20mA (or 0-10V) signal from the residual analyzer (measuring residual just downstream
from the injection point) is input to the RES/GND input channel of the OV-110.
ii. A 4-20mA (or 0-10V) signal from the residual analyzer (measuring residual at the contact
chamber outlet) is input to the DOS/GND input channel of the OV-110.
c. Control Concept: The OV-110 can be operated in either Residual Control or Compound Loop
Control using the Dual Set Point control method. In either case, the chemical feed rate control will
be carried out using the residual signal coming into RES/GND (as described in Sections II.2 and II.3).
i. As in the above Section II.2 and II.3, there will be a lag time for the injection point analyzer
(RES/GND channel). We will call this lag time “LT1”. As described in Sections II.2 and II.3,
this lag time should be limited to 5 minutes or less.
ii. There will also be a lag time for the residual analyzer (DOS/GND channel) that is located at
the outlet of the contact chamber. This lag time (call it LT2) should be set as the delay from
feed rate changes to registering on the DOS/GND analyzer plus 3 to 4 times LT1. For example,
if LT1 = 100 seconds and the delay for the DOS/GND analyzer is 1800 seconds, then set LT2
= 1,800 + 3 x 100 = 2,100 seconds. LT2 has a range up to 9999 seconds (over 2 hours & 46
minutes).
iii. In this Dual Set Point control method, there is a user adjustable set point for each of the
analyzers. We will call them SP2 (RES/GND channel) and SP3 (DOS/GND channel).
iv. The Dual Set Point control method concept is that each time the LT2 lag time expires, the
Omni-Valve will compare the residual reading (on DOS/GND channel) with its SP3 set point.
If this residual reading is not on set point, then the Omni-Valve will then automatically adjust
the SP2 accordingly.
d. Initial Settings: In the Configuration Mode:
i. The residual settings will need to be adjusted to match each of the residual analyzers.
ii. Both of the lag times (LT1 and LT2) will need to be measured on site and entered.
iii. “PV3 Integral” is used to adjust the magnitude of each SP2 adjustment. (1% < PV2 Integral <
100%). The default value is 50%. See section VI, screen 8c.
iv. Some of the settings made for the “Res” input will be used for “Res2”. Those include: units,
decimal position, filter time, and dead band.
e. User Interaction: If in Residual Control Mode, then the user will be able to adjust both of the
residual set points (SP2 and SP3). If in Compound Loop Control Mode, then the user will also
adjust the dosage.
13
FIGURE 9 – DUAL SET POINT
14
III. USER INTERFACE
The Omni-Valve operation and adjustments are carried out through the following interface features.
1. Keypad Operation – The keypad is used in all three modes of the OV-110. Generally the keys are used
as outlined here below. However, detailed instructions will follow.
&
keys – These keys are used to cycle through the various display screens. These keys will
a.
be referred to as “up arrow” and “down arrow”.
&
keys – These keys are generally used to adjust settings and values within the screen being
b.
displayed. These keys will be referred to as “plus” and “minus”. Additionally, the
plus key is used as Enter for blinking options on the Configuration modes SETUP
screen or to Enter yes/no selections while in the Advanced Calibration mode.
2. On the main operating screen you can manually switch between automatic (AUTO) and manual
(MANL) modes of the Omni-Valve by pressing the
key. The valve can be changed from AUTO to
MANL remotely as well, see section VII.4 for details.
IV. MOTION CONTROL, VALVE, AND 10 POINT LINEARIZATION
The Omni-Valve uses a linear stepper motor for valve stem motion control. The motor shaft is directly
coupled to the valve shaft. The motor covers its range of motion in 2000 steps. The motor position over
the range can also be described in terms of motor steps (where a position of 0 steps is the fully closed
position and a position of 2000 steps is the fully open position). In a given system, each motor position
will correspond to a chemical feed rate. For example motor positions from 0 to 215 might correspond
to zero chemical feed and motor position 1925 might correspond to the maximum chemical feed rate.
There is a calibration procedure that must be carried out with an external chemical flow meter in order
to calibrate each Omni-Valve in each installation (calibrate the motor position vs. chemical feed rate).
Consider Figures 10 through 12 and review Section VII screens 6a – 7.
FIGURE 10
Maximum
OPEN
Maximum
CLOSED
2000 Steps
0 Steps
15
FIGURE 11
Maximum OPEN
2000 Steps
0 Steps
Maximum CLOSED
Maximum OPEN
2000 Steps
0 Steps
Maximum CLOSED
Feed
Rate
%
Feed
Rate
kg/hr
Motor
Position
Steps
0%
0
160
5%
0.5
305
10%
1
395
15%
1.5
450
25%
2.5
600
35%
3.5
750
50%
5
1010
70%
7
1300
85%
8.5
1570
100%
10
1820
FIGURE 12
10 Point Calibration
2000
1800
Motor Position (steps)
1600
1400
1200
1000
800
600
400
200
0
0
16
1
2
3
4
5
Feed Rate (kg/hr)
6
7
8
9
10
V. OPERATION MODE
The operation mode is a set of screens that display the main operating parameters based on the control
type selected in the configuration mode. The dosage, residual/ORP set point, and chemical feed rate can
be adjusted from these screens.
Flow Pacing Control
Res/ORP Control
CLC Control
Step Feed
Dual Set Point
Residual
or CLC
Dual Input Feed
Forward Control
1a
Auto PV1 xxx MGD
PO1 xxx PPD
2a
Auto PV2 xxx PPM
PO1 xxx PPD
3a
Auto PV1 xxx MGD
PO1 xxx PPD
4a
Auto Feed Rate
PO1 xxx PPD
5a
Auto PV1 xxx MGD
PO1 xxx PPD
6a
Auto PV1 xxx MGD
PO1 xxx PPD
1b
Set Dosage
1.00
2b
Setpoint Res/ORP
xxx PPM
3b
Auto PV2 xxx PPM
PO1 xxx PPD
4b
Set PO1 (valve)
xxx PPD
5b
Auto PV2 xxx PPM
PO1 xxx PPD
6b
Auto PV2 xxx PPM
PO1 xxx PPD
1c
Set PO1 (valve)
xxx PPD
2c
Set PO1 (valve)
xxx PPD
3c
Set Res/ORP Setpoint
xxx PPM
4c
Alarm Status
Normal
5c
Set Dosage
1.00
6c Injection Pnt (PPM)
1d
Alarm Status
None
2d
Alarm Status
None
3d
Set Dosage
1.00
Enter Password
5d
Set PO1 (valve)
xxx PPD
6d PV3=xxx SP3=xxx
Enter Password
3e
Set PO1 (valve)
xxx PPD
5e
Alarm Status
None
6e
Set Dosage
1.00
3f
Alarm Status
None
Enter Password
6f
Set PO1 (valve)
xxx PPD
6g
Alarm Status
None
Enter Password
Enter Password
PV2=xxx SP2=xxx
System Outlet (PPM)
Enter Password
NOTES:
1. On the first screen on each mode, use the
key to switch between AUTO and MANL.
2. “Set PO1 (valve)” screens only appear if set to MANL mode. From this screen the user can set the
and
keys.
Omni-Valve feed rate manually using the
3. Use the
and
keys to adjust Dosage, Set Points, Valve Position (PO1) etc…
4. Screens 6a and 6e only appear if Compound Loop is selected when in Dual Set Point Mode.
Dosage: This value is a multiplication factor for the calculated chemical feed rate. It can be set to fine
tune the feed rate when in Flow Pacing, Compound Loop, Feed Forward or Dual Set Point control.
Flow Pacing Example:
Valve Output = [(Actual Flow/Flow Full Scale) * Valve Full Scale] * Dosage
Setpoint: The set point is the residual/ORP/pH value that the Omni-Valve will try to maintain.
17
18
2a
2d
2e
2f
2g
Flow Decimal Posn
000.0
Flow Full Scale
100.0%
Flow Threshold
0.0%
Flow Filter Time
5 secs
Flow Low Set
0.0%
1d
1e
1f
1g
1h
Res Filter Time
5 secs
Res Minimum Value
0.00 PPM
Res Full Scale
5.00 PPM
Res Decimal Posn
00.00
ResUnits
PPM
Res Dead Band
0.10 PPM
Res Integral Value
20.0%
Res Lag Time
60 secs
Res Reset Value
0.0%
Variable Lag Time?
Yes / No
Maximum Lag Time
1800 secs
2i
2j
2k
2l
3a
3b
3c
Variable Lag
3d Flow at20.0%
Res High Alarm
5.00 PPM
Alarm (0=off)
2h Res Low
0.00 PPM
2c
Flow Input Units
%
Input Signal Loss
2b Maintain
Valve Posn
1c
Input Signal Loss
1b Maintain
Valve Posn
1a
8a
RES2
RES
Res Input Name
RES
FLO
Flow Input Name
FLO
PV3 Integral Value
50.0%
8f
Output Full Scale
100.0%
This selection is
required because Cl2
increases residual
and SO2 decreases
residual.
Gas Feed Type
5a OutputCl2
SO2
4c
Posn
4b Output Decimal
000.0
4a
Output Units
%
OUT
Set up the units,
range, and chemical
type for the OmniValve.
7d
7c
7b
7a
In compound loop control mode, any time the flow is below
this level, then the OV-110 will ignore the residual reading
(switch to flow pacing control mode).
These screens are only visible
in compound loop control mode:
3a – 3d and 8d – 8f
Flow at Variable Lag
50.0 MGD
Lag Time
8e Maximum
1800 secs
System Outlet
8d Fixed
or Variable Lag
8c
System Outlet Point
8b Lag
Time = xxxx Sec
System Outlet Range
Min = xxx Max = xxx
See Sections II.5 and
VII.3 for details. This
is for setup of the 2nd
residual analyzer on
channel DOS/GND.
These screens are
used for setting up
the residual signal
coming in on the
RES/GND channel.
These screens are
used for setting up
the first signal
coming in on the
FLO/GND channel.
SETUP: FLO RES RES2
STEP OUT ALM ADCAL
Control Type
Flow Pacing
ENTER PASSWORD
0
Relay 1 Usage
6b Output
Normal Alarms
Relay 2 Usage
6c Output
Auto / Manl
Step Feed Input 2
PO1 10.0%
Step Feed Input 3
PO1 10.0%
The user can select from
three choices of normal
alarms, auto/manual, or
duty/standby indication
for each of the two relays.
6a
Step Feed Input 4
PO1 10.0%
ALM
Alarm Delay Time
xxx Seconds
STEP
Step Feed Input 1
PO1 10.0%
Enter the chemical
feed rate that will be
alloted to each step
channel.
7
Begin Adv Cal Mode?
No Yes
ADV
Refer to Section VII
for detailed instructions
for the Advanced
Calibration Mode.
NOTE: Only relevant options will be visible on this menu.
Selections on this menu lead to the screens shown below.
NOTE: After entering the password, the control mode
selection menu will appear first. See Section II for a
review of the available control mode options.
VI. CONFIGURATION MODE
The configuration mode of the Omni-Valve allows the user to adjust key parameters to the control type
selected. As a general reference all settings on the analyzer should match the setting on the incoming
signals. The following is a brief description of what each setting does. Note that based on the type of
control method selected all the screens may not appear.
Enter Password: To enter the configuration mode, a password must be entered. Hydro Instruments’ has
set this password equal to “110”.
Control Type: This screen allows the user to select the control type desired. Refer to section II for the
optimal control type desired.
FLO – Flow
These screens are used for setting up the water flow signal and control parameters.
Flow Input name: This screen allows the user to enter a name for the flow signal. Options include:
PV1, H2O, PRO, FLO.
Input Signal loss: This screen will dictate to the omni-valve what to do when an input signal (FLO,
RES, DOS) has be lost. The omni-valve can be selected to either maintain its current position, or close
the valve and shut off feed until the signal is restored.
Flow Input Units: This screen allows the user to set the flow units on the omni-valve. Options included:
%, GPM, MGD, LPM, MLD, GPD, M3/H, LPH.
Flow Decimal Posn: This screen sets the decimal position of flow signal on the omni-valve.
Flow Full Scale: This screen sets the full scale of flow rate the omni valve will display. I.E. the flow rate
when the signal input is at 20 mA (or 10 V). It is very important to match this with the full scale of the
flow meter.
Flow Threshold: This value determines the flow percentage below which the flow signal will be ignored.
This also re-scales the incoming flow signal. For example, with a 4-20 mA signal and a flow threshold of
50%, the omni-valve will remain closed at any signal below 12 mA and will begin feeding above 12 mA
linearly up to 20 mA. For normal operation this value should be set at 0% so that it will feed throughout
the whole 4-20 mA range.
Flow Filter Time: This value will set the time over which the omni-valve will average incoming flow
signal.
Flow Low Set: This is used for alarm indication for when the flow rate has gone below the set value.
RES – Residual
These screens are used for setting up the residual signal and control parameters.
Res Input name: This screen allows the user to enter a name for the residual signal. Options include:
RES, ORP, pH, Ch1, PV2, SCM, TDS, DO, CON, TUR.
Res Units: This screen allows the user to enter the units for the incoming residual signal. Options
include: PPM, mg/L, mV, pH, NTU, %.
Res Decimal Posn: This screen sets the decimal position of residual on the Omni-Valve.
Res Full Scale: This screen sets the full scale residual/ORP displayed on the Omni-Valve. This
corresponds the 20 mA (or 10 V) output from the downstream controller.
Res Minimum Value: This screen sets the low end value of the residual/ORP signal. This would
correspond to the 4 mA (or 0V) incoming signal from the downstream controller. This value is more
often adjusted in ORP control type applications.
19
Res Filter Time: This value will set the time over which the omni-valve will average incoming residual/
ORP signal.
Res Low Set: This is used for alarm indication for when the residual/ORP fall below the set value.
Setting this value to 0 turns the alarm off.
Res High Set: This is used for alarm indication for when the residual/ORP is above the set value.
Res Dead Band: the dead band allow for an adjustable range around the set point that is considered an
acceptable residual level. As long as the residual/ORP value is within +/- this value from the set point, the
omni-valve will consider this level “ok” and not make any adjustments.
Res Integral Value: This value is used in the PID control calculations to make calculated adjustments
back to the set point. An integral value too high will cause large swings above and below the set point and
an integral value to low will take too long to reach the set point. A typical value will be between 10-30 %.
Hydro Instruments’ factory sets this value at 20%.
Res Lag Time: The lag time is the time between when the omni-valve makes and adjustment and when
it reads the incoming residual signal based on the adjustment. Lag times should be measured (and then
entered) between when the omni-valve makes and adjustment and when that adjustment reaches the
downstream instrument. This is a very important value for the most accurate and reliable control.
Res Reset Value: This value is used in compound loop control for when the flow signal falls below the
set value the incoming residual/ORP signal will be ignored.
Variable Lag Time: This value is used in compound loop mode; to adjust the residual lag time based on
changes in flow as a faster flow rate will reach the downstream instrument faster. To activate the variable
lag time select yes.
Maximum Lag Time: When variable lag time is activated this is the longest time the omni-valve will
wait to take a reading once an adjustment has been made.
Flow at Variable Lag: This value is the flow value at which the residual lag time was measured.
System Outlet Range: This screen is used to set the minimum and maximum value of a second residual/
ORP analyzer. This is for dual set point control and the inputs for this analyzer should be wired into the
DOS/GND line.
RES2 – Residual Outlet
These screens are used for setting up the second residual signal and control parameters. These are for use
with Dual Set-Point Control only.
System Outlet Point Lag Time 2: This value sets the time between when the omni-valve makes and
adjustment and when it measures the incoming signal from the DOS/GND connection based on that
adjustment.
PV3 Integral Value: This value is used in the PID control calculations to make calculated adjustments
back to the set point. A larger integral value will make larger feed rate changes. Setting the value too high
will cause rapid swings above and below the set point and setting it too low will take too long to reach the
set point. Hydro Instruments recommends this value be set at 50%.
System Outlet Lag Time Variable: This value is used in compound loop mode; to adjust the residual
lag time based on changes in flow as a faster flow rate will reach the downstream instrument faster. To
activate the variable lag time select yes.
20
OUT – Output
These screens are used for setting up the valves chemical feed output.
Output Units: This screen allows the user to select the units or the chemical feed rate (PO1). Options
include: %, PPD, g/hr, kg/hr, GPH, GPM, GPD, LPM, LPH.
Output Decimal Posn: This screen sets the decimal position of chemical feed rate on the omni-valve.
Output Full Scale: This screen sets the full scale of the chemical feed rate the omni valve will display.
Output Gas Type: This screen allows the user to select between CL2 and SO2. This is important for
control types where residual control is important as the CL2 acts proportionally to the residual signal
(i.e. when the value is below set point it adds more chemical) and SO2 acts inversely proportional to the
residual signal (I.E. when the residual signal is above the set point it adds more chemical). Thus SO2 is
most commonly selected when de-chlorinating or pH control.
STEP – Step Feed
These screens are used for setting the incremental feed rates when using step feed control.
Step Feed Input 1: This value sets the percentage of full scale the omni-valve will feed when the SF1
terminal is activated.
Step Feed Input 2: This value sets the percentage of full scale the omni-valve will feed when the SF2
terminal is activated.
Step Feed Input 3: This value sets the percentage of full scale the omni-valve will feed when the SF3
terminal is activated.
Step Feed Input 4: This value sets the percentage of full scale the omni-valve will feed when the SF4
terminal is activated.
*Note that if multiple pumps will be activated at once, the sum should not exceed 100%.
ALM – Alarm
These screens are used for setting up additional alarm features.
Alarm Delay Time: Set the time for which a condition must be in alarm state for the alarm to activate.
Output Relay Usage: The user can independently select each of the relays to indicate one of three
parameters: normal alarms, auto/manual, or duty/standby.
21
22
100%
PO1
1924
438
Save Cal Settings?
+ = save settings
10%
PO1
276
4a
4b
Graphical representation of
current motor position.
3b
Current motor position.
Chemical feed rate at
this calibration point.
5. After the 100% feed rate calibration point has been completed, the
final menu will appear asking if the calibration should be saved.
Press
to save the calibration. If
is not pressed, then the
calibration will be discarded.
4. The stepper motor has a range of 0 to 2000 steps. The motor
position (in number of steps) is displayed on these screens.
3. Use the
and
keys to adjust motor (valve) position until the
prompted chemical feed rate is reached on the external flow meter.
2. The 10 points are 0%, 5%, 10%, 15%, 20%, 25%, 35%, 50%, 70%,
85%, and 100%.
1. The OV-110 is calibrated to an external flow meter at 10 separate
points.
10 Point Linearization Process: See Section IV for further explanation.
7
6j
5%
PO1
197
3a
Select Inputs
PV1=M PV2=A PV3=A
5e
0%
2b
Modbus Baud= 19200
Node= 1 Data= 8/N/1
5d
PO1
2a
See Section VII.4 for a
detailed explanation.
Enable Ext Auto/Manl?
Yes or No
5c
6a
1b
See Sections VII.1, VII.2, and VII.3
for a detailed explanation.
Purg Tm= 0 Wt= 99
PV1Stop= 05% D= 0
5b
1a
The motor position will recheck
each time this time interval passes.
Auto Valve Chk Time
168 hrs (0= Off)
5a
Begin Adv Cal Mode?
No Yes
Output 20mA Cal?
956
Output 4mA Cal?
185
Change PV3 Span Cal?
Yes
2. In order to perform the
calibration, press
on the
Yes, and then
to make
“Change Now” flashing and
then press
to make the
calibration. Or press
while
“Cancel” is flashing to abort the
calibration.
1. In order to perform these
calibrations, on a given
channel, a 4mA signal must be
coming in for a Zero calibration
and a 20mA signal must be
coming in for a Span
calibration.
NOTE: For menus 1a through 3b:
The number displayed is the input to the DAC.
The range for this number is 0 to 1023. Adjusting
this number adjusts the 4-20mA output signal value.
Confirm New PV3 Span
Cancel Change Now
Confirm New PV3 Zero
Cancel Change Now
Confirm New Res Span
Cancel Change Now
Change Res Span Cal?
Yes
Change PV3 Zero Cal?
Yes
Confirm New Res Zero
Cancel Change Now
Confirm New Flo Span
Cancel Change Now
Confirm New Flo Zero
Cancel Change Now
Change Res Zero Cal?
Yes
Change Flo Span Cal?
Yes
Change Flo Zero Cal?
Yes
Menu Screens 1a through 4b will not normally appear when entering the Advaneed Calibration Menu. These
menus have been moved to a hidden menu as of April 2009, to avoid accidental mis-calibrations of 4-20mA
inputs and outputs. To access these calibration screens, navigate to the “Begin Advanced Cal?” menu
screen, and while the “No” is flashing, press and hold the
button until the calibration menus appear.
VII. ADVANCED CALIBRATION MODE
NOTE: Accessing hidden screens “5b through 5e” – In order to access screens 5b through 5e for purge, flow
stop, remote dosage settings, external mode control, and Modbus settings follow these instructions:
a. Navigate to the “Begin Adv Cal Mode?” screen with “Yes” flashing.
key for five seconds. At first, screen 5a will
b. On this screen with “Yes” flashing press and hold the
appear, but you must continue to hold the
key until screen 5b appears.
c. After reaching this screen consider below Sections VII.1 through VII.5.
1. Purge Feature (For Liquid Feed Systems): In applications using the Omni-Valve to feed liquid
chemicals (especially at low flow rates), the valve orifice can become blocked with particles in the liquid
chemical. In order to overcome this issue, the Omni-Valve can be programmed to fully open for a set
time on a periodic basis. The two parameters on line one of screen 5b are related to the Purge Feature.
a. The period between openings is the “Purg Tm” (the time is in minutes). A setting of 60 means that the
valve will open once every 60 minutes. A setting of 0 means that the purge feature is not enabled.
b. The “Wt” is the duration of time resting at fully open (the time is in seconds). A setting of 15 means
that when the valve opens, it will remain fully open for 15 seconds.
2. Dosage Method Selection: The parameter “D” on the bottom right of hidden screen 5b is used to
determine the use of the 3rd 4-20mA input channel (DOS/GND). The options are as follows:
NOTE: If D is not set = 0, then an appropriate 4-20mA input signal must be connected to DOS/GND.
a. D = 0: The 3rd 4-20mA input channel is not being used.
b. D = 1: This is valid for Flow Pacing, Compound Loop, and Dual Input Feed Forward Control
Methods. With D = 1 the user will not be able to adjust the dosage in operation mode using the keypad.
i. If the OV-110 is in AUTO mode, then the 3rd 4-20mA input channel will set the dosage (refer to
Section II.1). In this case, an input value of 4 mA will set dosage = 0 and a 20 mA input signal
will set dosage = 10.0.
ii. If the OV-110 is in MANL mode and the Purge Feature is not enabled, then the 3rd 4-20mA input
channel will directly control the chemical feed rate (1:1 ratio between input and feed rate).
c. D = 2: This is valid for Residual & Compound Loop Control Methods. With D =2 the user will not
be able to adjust the residual set point in operation mode using the keypad. The 3rd 4-20mA input
channel will set the residual set point (see Section II.2). In this case, an input value of 4 mA will set
residual set point = “Res Min” and a 20 mA input signal will set residual set point = “Res Span”.
d. D = 3: This is only valid for Dual Set Point Control Method. See Section II.5. The 3rd 4-20mA
input channel will be used for the residual analyzer at the outlet of the contact chamber. The residual
decimal points and units for display must be the same as the residual analyzer on RES/GND.
3. Flow Stop: This feature is specifically intended for use with the compound loop control method to
prevent valve adjustments based on the residual signal when water flow has stopped. This feature allows
the user to enter a flow value below which the valve will drive closed and remain closed (until flow returns
above the entered value). This setting is the “PV1Stop” parameter on the bottom left of hidden screen 5b.
The default value is zero (PV1Stop = 0 means this feature is not enabled), but the PV1Stop setting can be
and
keys as desired.
adjusted using the
4. External Duty/Standby and Auto/Manual Control Options: The following features allow the 24VDC
SF3 and SF4 channels to be used for external control of these settings.
NOTE: Any DC voltage between 12 and 24 volts is acceptable for these input channels. See Figure 3.
NOTE: These features are only available if the OV-110 is not set to step feed control mode.
a. Duty / Standby (SF3): This feature does not require any user adjustments. If the OV-110 is not in
step feed control mode, then a 24 VDC input signal to channel SF3 will put the OV-110 into standby
condition (in standby the OV-110 will drive closed and remain closed). If there is no voltage signal
into SF3, then the OV-110 will operate normally.
b. Auto / Manual (SF4): This feature requires the user to first enable external control of AUTO/MANL
mode on advanced calibration screen 5c. If external control has been enabled, then a 24 VDC input
signal into channel SF4 will set the OV-110 into AUTO (automatic) mode and if there is no voltage
signal into SF4, then the OV-110 will be in MANL (manual) mode. When external control has been
enabled, the user will not be able to select AUTO/MANL using the keypad.
23
5. Modbus Communication:
a. Screen 5d allows the user to adjust the Modbus communication settings. See the separate Modbus
communication instruction for details.
b. Screen 5e allows the user to select the three inputs (PV1, PV2, PV3 also known as FLO, RES, DOS).
If “A” is selected then that input will be read from the analog input channel. If “M” is selected then
that input will be read over Modbus. Each of the three input channels can be individually selected as
either “A” or “M”.
24
VIII. TROUBLESHOOTING AND MAINTENANCE
1. Factory Default: If there is an electronics problem that cannot be solved by any of the below efforts,
then you might consider performing a factory default. However, when this is done all calibration data is lost
and must be reset. Therefore it is best to try other steps first because you will have to go through both the
Advance Calibration Mode and the Configuration Mode to enter all control and calibration settings.. In
order to perform a factory default follow these steps:
1. Turn off the power to the OV-110.
key and the “down arrow”
key on the front panel.
2. Hold both the “up arrow”
3. While holding both keys, turn on the power to the OV-110.
SAFETY NOTE: Be sure to follow all safety precautions before attempting to service the OV-110 OmniValve. Be sure to disconnect power from the OV-110 Omni-Valve before servicing electronics.
2. Servicing the Valve Body: (See Figures 14 and 16) If the valve becomes difficult to move or for the
purpose of preventative maintenance (recommended every 12 to 24 months) the valve body should be
serviced according to the following procedure:
a. Removal of the valve body from the monitor enclosure:
i. Remove the three bolts at the bottom end of the valve body.
ii. Remove the Lower Body and Middle Body parts of the valve body assembly.
iii. Unscrew the Valve Stem and intermediate Valve Stem from the motor shaft. Avoid using pliers or
any tool that will scar the surface of these parts.
iv. Unscrew and remove the three bolts inside the enclosure that hold the Upper Body to the
enclosure.
b. Top Shaft Seal: Also remove the OV2-33 Seal Cap from the top of the Upper Body using a
spanner wrench. There is a 3RS-108 O-Ring and Teflon seal under this part. When reinstalling the
OV2-33 Seal Cap do not over tighten. Use 7-10 inch-pounds torque.
c. Maintenance: All parts should be inspected for damage, cleaned, and lubricated* before reassembly.
Generally, O-Rings should be replaced if in use for more than 12 months. The Valve Seat may require
replacement if there are any cuts or burrs noticed. Hydro recommends replacement of AV2-62 during
valve servicing.
* Use appropriate lubrication for your chemical application. Contact your local representative of
Hydro Instruments if there is any uncertainty.
d. Reinstallation: IMPORTANT – It is critically important that the threads on the Valve Stem and
Intermediate Valve Stem be securely tightened during installation. Follow this procedure:
i. Install all O-rings, Teflon Seals, Seal Cap and Stem Seal parts into the Upper body first. Then slip
the Intermediate Valve Stem through the assembly.
ii. Secure the Upper Body to the enclosure being sure to use a new gasket between the two parts.
iii. Thread the Intermediate Valve Stem hand tight onto the motor shaft threaded adapter. Avoid using
pliers or any tool that will scar the surface of the stem.
iv. Thread the Valve Stem hand tight onto the Intermediate Valve Stem. Avoid using pliers or any tool
that will scar the surface of the stem.
v. Install the Middle Body and Lower Body being sure not to move them in a way that would
possibly unthread the Intermediate Valve Stem or the Valve Stem threads.
NOTE: The bolts used to secure the valve body (3 bottom + 3 top) should be tightened to 20-25 inchpounds torque.
25
1
3
2
5
6
4
7
8
9
OV-110
Mechanical
Subassembly
10
11
OV-110 OMNI-VALVE
(ELECTRICAL SUBASSEMBLY)
26
Date: May 2016
EXPLODED VIEW
Dwg. No. OV-110 ELE, EXP
Item
No.
Description
Quantity
Part
No.
1
OV-110 Printed Circuit Board
1
Consult Factory
2
Power Supply Mounting Plate
1
MP-PS-2
3
Power Supply Board 12VDC, 2.1A
1
PSB-12VDC-OV
4
Liquid Tight Fitting
4
BLT-199
- Required O-Ring for Liquid Tight Fitting
4
OH-BUN-112
5
10-24 x 5⁄8" Pan Head Machine Screw
4
BTH-STA-244
6
Upper Body Gasket
1
AV-GASKET
7
Toggle Switch
1
PTS-01
8
OV-110 Stepper Motor and Home Switch
1
OV-MOTOR
9
OV-110 Mounting Plate
1
MP-1
10
OV-110 Stand Off
4
AV-SO-2
11
Upper Body Bolt
3
BTH-STA-537
(1⁄4 -20 x 1⁄2" Button Head Socket Cap Screw)
OV-110 OMNI-VALVE
(ELECTRICAL SUBASSEMBLY)
Date: May 2016
BILL OF MATERIALS
Dwg. No. OV-110 ELE, BOM
27
1
2
3
4
5
6
2
3
7
8
10
A/B/C
9
11
12
A/.../G
13
A/.../D
8
16
A/B/C
14
15
5
8
5
17
OV-110 OMNI-VALVE
(MECHANICAL SUBASSEMBLY)
28
Date: October 2016
EXPLODED VIEW
Dwg. No. OV-110, EXP
Item
No.
1
2
3
4
5
6
7
8
9
Description
Quantity
PM
Part
No.
Seal Cap
Teflon Seal
PM
O-Ring
Upper Body
PM
O-Ring
1
2
2
1
2
OV2-33
OVS-108
3RS-108
AVB-10-2
3RS-124
Small Disc
Stem Seal
PM
O-Ring
Large Disc
1
1
2
1
AV-4
OV-5
3RS-116
AV-3
PM
PM
10 A
10 B
10 C
11
Middle Body (250 PPD)
Middle Body (500 PPD)
Middle Body (2000 PPD)
Valve Shaft
1
1
1
1
AV2-112-250
AV2-112-500
AV2-112-000
AV2-12
12 A
12 B
12 C
12 D
12 E
12 F
12 G
Valve Stem (4 PPD)
Valve Stem (10 PPD)
Valve Stem (25 PPD)
Valve Stem (50 PPD)
Valve Stem (100 PPD)
Valve Stem (250 PPD)
Valve Stem (500 PPD)
1
1
1
1
1
1
1
AV2-72-004
AV2-72-010
AV2-72-025
AV2-72-050
AV2-72-100
AV2-72-250
AV2-72-500
13 A
13 B
13 C
13 D
14
Valve Stem (1000 PPD)
Valve Stem (2000 PPD)
Valve Stem (8+)
Valve Stem (8++)
PM
Valve Stem Seat (500 PPD)
1
1
1
1
1
AV2-72-1000
AV2-72-2000
AV2-72-000-8P
AV2-72-000-8PP
AV2-62
15
16 A
16 B
16 C
17
PM
1
1
1
1
3
AV2-6-000
AV2-92-250
AV2-92-500
AV2-92-000
1⁄4"-20 x 5 1⁄2"
18 A
18 B
18 C
PM
2
2
2
BKF-64
BKF-84
BKF-108
PM
PM
PM
PM
Valve Stem Seat (2000 PPD)
Lower Body (250 PPD)
Lower Body (500 PPD)
Lower Body (2000 PPD)
Bolts
NPT Fitting (100 PPD) Not Shown
NPT Fitting (250 PPD) Not Shown
PM
NPT Fitting (500 PPD) Not Shown
PM
Part & Maintenance Kit (100 PPD)
Part & Maintenance Kit (250 PPD)
Part & Maintenance Kit (500 PPD)
Part & Maintenance Kit (2000 PPD)
KT1-100-OV
KT1-250-OV
KT1-500-OV
KT1-040-OV
OV-110 OMNI-VALVE
(MECHANICAL SUBASSEMBLY)
Date: October 2016
BILL OF MATERIALS
Dwg. No. OV-110, BOM
29
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