SMC Networks ZQ Series User manual

Doc. no. ZQ-OM00801-C
PRODUCT NAME
Space Saving Vacuum Ejector
Vacuum Pump System
MODEL / Series / Product Number
ZQ Series
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 1 -
Contents
Safety Instructions 2
Model Indication and How-to-Order 10
Mounting and Installation 15
Air Supply 16
Supply Pressure 16
Piping 16
Connections V port (when the vacuum pressure switch is installed) 17
Solenoid Valve 19
Construction 23
Maintenance and Inspection 24
How to replace the Silencer 25
How to replace the Suction Filter 26
How to order replacement 27
Manifold Products 28
Exhaust from Ejector 30
Specifications 30
Circuit diagram 32
Mass 35
Exhaust Characteristics and Flow Characteristics of Ejector 36
Flow Characteristics Curve 37
Pressure Sensor Assembly 37
Troubleshooting 39
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 2 -
Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or equipment damage.
These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.”
They are all important notes for safety and must be followed in addition to International Standards
(ISO/IEC) 1) , and other safety regulations.
1) ISO 4414: Pneumatic fluid power -- General rules relating to systems.
ISO 4413: Hydraulic fluid power -- General rules relating to systems.
IEC 60204-1: Safety of machinery -- Electrical equipment of machines .(Part 1: General requirements)
ISO 10218-1992: Manipulating industrial robots -Safety.
etc.
Caution
Caution indicates a hazard with a low level of risk which, if not avoided, could result
in minor or moderate injury.
Warning
Warning indicates a hazard with a medium level of risk which, if not avoided, could
result in death or serious injury.
Danger
Danger indicates a hazard with a high level of risk which, if not avoided, will result
in death or serious injury.
Warning
1. The compatibility of the product is the responsibility of the person who designs the equipment or
decides its specifications.
Since the product specified here is used under various operating conditions, its compatibility with specific
equipment must be decided by the person who designs the equipment or decides its specifications based on
necessary analysis and test results.
The expected performance and safety assurance of the equipment will be the responsibility of the person who
has determined its compatibility with the product.
This person should also continuously review all specifications of the product referring to its latest catalog
information, with a view to giving due consideration to any possibility of equipment failure when configuring the
equipment.
2. Only personnel with appropriate training should operate machinery and equipment.
The product specified here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment including our products must be performed
by an operator who is appropriately trained and experienced.
3. Do not service or attempt to remove product and machinery/equipment until safety is confirmed.
1) The inspection and maintenance of machinery/equipment should only be performed after measures to
prevent falling or runaway of the driven objects have been confirmed.
2) When the product is to be removed, confirm that the safety measures as mentioned above are implemented
and the power from any appropriate source is cut, and read and understand the specific product precautions
of all relevant products carefully.
3) Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. Contact SMC beforehand and take special consideration of safety measures if the product is to be
used in any of the following conditions.
1) Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to
direct sunlight.
2) Installation on equipment in conjunction with atomic energy, railways, air navigation, space, shipping,
vehicles, military, medical treatment, combustion and recreation, or equipment in contact with food and
beverages, emergency stop circuits, clutch and brake circuits in press applications, safety equipment or
other applications unsuitable for the standard specifications described in the product catalog.
3) An application which could have negative effects on people, property, or animals requiring special safety
analysis.
4) Use in an interlock circuit, which requires the provision of double interlock for possible failure by using a
mechanical protective function, and periodical checks to confirm proper operation.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 3 -
Safety Instructions
Caution
1.The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and exchange specifications
or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
Limited warranty and Disclaimer/Compliance Requirements
The product used is subject to the following “Limited warranty and Disclaimer” and “Compliance
Requirements”.
Read and accept them before using the product.
Limited warranty and Disclaimer
1.The warranty period of the product is 1 year in service or 1.5 years after the product is delivered.
Also, the product may have specified durability, running distance or replacement parts. Please
consult your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our responsibility,
a replacement product or necessary parts will be provided.
This limited warranty applies only to our product independently, and not to any other damage
incurred due to the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms and disclaimers
noted in the specified catalog for the particular products.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of mass
destruction (WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are governed by the
relevant security laws and regulation of the countries involved in the transaction. Prior to the
shipment of a SMC product to another country, assure that all local rules governing that export
are known and followed.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 4 -
Explanation of Symbols
S ym b o l
Definition
Things you must not do.
Actual instructions are provided as a drawing or sentence close to this symbol.
Things you must do.
Actual instructions are provided as a drawing or sentence close to this symbol.
Operator
1. This Operation Manual is intended for those who have knowledge of machinery using pneumatic
equipment, and have sufficient knowledge of assembly, operation and maintenance of such equipment.
Only those persons are allowed to perform assembly, operation and maintenance.
2. Read and understand this Operation Manual carefully before assembling, operating or providing
maintenance to the product.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 5 -
■Safety Instructions
Warning
Disassembly
prohibited
Do not disassemble, modify (including the replacement of board) or repair other than
instructed in this manual.
An injury or failure can result.
Do not
Do not operate the product outside of the specifications.
Do not use for flammable or harmful fluids.
Fire, malfunction, or damage to the product can result.
Verify the specifications before use.
Do not
Do not use in an atmosphere containing flammable or explosive gases.
Fire or an explosion can result.
The product is not designed to be explosion proof.
Do not
Do not use the product in a place where static electricity is a problem.
Otherwise failure or malfunction of the system can result.
Do not
Do not cut off the power and compressed air supplied to this product while it is
operating.
Otherwise it can cause injury due to dropping of workpieces or damage to the
system.
Instruction
If using the product in an interlocking circuit:
- Provide a double interlocking system, for example a mechanical system.
- Check the product for proper operation.
Otherwise malfunction can result, causing an accident.
Instruction
The following instructions must be followed during maintenance :
Turn off the power supply
Stop the air supply, exhaust the residual pressure in piping and verify that the air is
released before performing maintenance work.
An injury can result.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 6 -
Caution
Do not touch
Do not touch the terminals and connectors while the power is on.
Otherwise electric shock, malfunction or damage to the switch can occur.
Instruction
Perform sufficient trial run.
Otherwise, injury or damage to the system can occur due to suction failure depending on the
conditions of the suction of the workpiece or the pressure switch settings.
Perform sufficient verification before using this product.
Instruction
After maintenance is complete, perform appropriate functional inspections and leak
test.
Stop operation if the equipment does not function properly or there is leakage of fluid.
If there is leakage from parts other than the piping, the product might be broken.
Cut off power supply and stop supplying fluid.
Do not supply fluid if there is leakage.
Safety cannot be assured in the case of unexpected malfunction.
Handling Precautions
○Follow the instructions given below for selecting and handling of the vacuum unit.
●The instructions on selection (installation, wiring, environment, adjustment, operation, maintenance,
etc.) described below must also be followed.
●Product specifications
- For the compressed air quality, refer to JIS B 8392-1 2.4.3 to 2.6.3.
Insufficient air quality can cause operating failure.
If compressed air containing condensate is used, install an air dryer or drain catch before the filter and perform
drainage regularly.
If draining is not performed regularly and condensate enters the secondary side, it can cause operating failure of
pneumatic equipment.
When it is difficult to control drainage, the use of a filter with an auto drain is recommended.
- The applicable fluids are air, non-corrosive gas and inert gas.
Do not use a fluid containing chemicals, synthetic oils including organic solvent, salt and corrosive gases.
Otherwise, damage to the vacuum unit and malfunction can occur.
Check the details of the specifications before use.
- Use the specified operating pressure.
Otherwise it can cause damage to the vacuum unit or inability to hold work piece correctly.
- Reserve suitable space for maintenance.
Allow sufficient space around the product for maintenance when designing the system.
- Use the specified voltage.
Otherwise failure or malfunction can occur.
- Do not exceed the specified maximum allowable load.
Otherwise it can cause damage or shorten the life of the product.
- Design the product to prevent reverse current when the circuit is opened or the product is forced to
operate for operational check.
Reverse current can cause malfunction or damage the product.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 7 -
●○Handling
Mounting
- Tighten to the specified tightening torque.
If the tightening torque is exceeded, the mounting screws, brackets and the product can be damaged.
Insufficient torque can cause displacement of the product from its proper position and loosening of the mounting
screws.
- Ensure that the FG terminal is connected to ground when using a commercially available switch-
mode
power supply.
- Do not drop, hit or apply excessive shock to the product.
Otherwise damage to the internal parts of the product, solenoid valve and internal parts of the pressure switch
can occur, causing malfunction.
- Do not pull the lead wire forcefully, or lift the product by pulling the lead wire. (Tensile strength 35N or
less)
Hold the body when handling to avoid damaging the product.
The solenoid valve and the pressure switch will be damaged, leading to failure and malfunction.
- Eliminate any dust left in the piping by using a blast of air before connecting the piping to the product.
If dust is left in the piping, failure and malfunction can result.
- Do not insert metal wires or other foreign objects into the pressure port of the pressure sensor.
The pressure sensor will be damaged, leading to failure and malfunction.
- If the fluid may contain foreign matter, install and connect a filter or mist separator to the inlet.
Failure and malfunction can result.
Wiring (Including connecting/disconnecting of the connectors)
Do not pull hard on the lead wire, or lift the product by holding the lead wires (Tensile strength 35 N or
less).
In particular, never lift the product by the lead wire of the solenoid valve or the pressure switch when fittings and
piping are built in.
Otherwise damage to the solenoid valve or the internal parts of the pressure switch can result, causing
malfunction or causing the connector to come off.
- Avoid repeatedly bending, stretching or applying a heavy object or force to the lead wire.
Repetitive bending stress or tensile stress to the lead wire can cause the sheath of the wire to peel off.
If the lead wire can move, fix it near the body of the product.
The recommended bend radius of the lead wire is 6 times the outside diameter of the sheath, or 33 times the
outside diameter of the insulation material, whichever is larger.
Replace the damaged lead wire with a new one.
- Wire correctly.
Incorrect wiring can cause malfunction or breakage of the solenoid valve or the pressure switch/sensor.
- Do not perform wiring while the power is on.
Otherwise damage to the solenoid valve or the internal parts of the pressure switch/sensor can result, causing
malfunction.
- Do not route wires and cables together with power or high voltage cables.
Route the wires (piping) of the solenoid valve or the pressure switch separately from power or high voltage
cables in order to avoid noise or surge entering the signal line from the power or high voltage line.
- Confirm proper insulation of wiring.
Poor insulation (interference with other circuits, poor insulation between terminals etc.) can apply excessive
voltage or current to the solenoid valve or the pressure sensor, causing damage.
- Design the system to prevent reverse current when the product is forced to operate for operational
check.
Depending on the circuit used, insulation may not be maintained when operation is forced, allowing reverse
current to flow, which can cause malfunction and damage to the solenoid valve or the pressure switch.
- Keep wiring as short as possible to prevent interference from electromagnetic noise and surge
voltage.
Do not use a cable longer than 10 m.
Wire the DC (-) line (solenoid valve: black, pressure switch: blue) as close as possible to the power supply.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 8 -
Operating environment
- Do not use in an environment where corrosive gases, chemicals, sea water, water or steam are
present.
These can cause failure or malfunction.
- Do not use the product in a place where the product could be splashed by oil or chemicals.
If the product is to be used in an environment containing oils or chemicals such as coolant or cleaning solvent,
even for a short time, it may be adversely affected (damage, malfunction, or hardening of the lead wires).
- Do not use the product in an area where surge is generated.
When there are machines or equipment that generate large surge near the pressure switch (magnetic type lifter,
high frequency inductive furnace, motor, etc.), this can result in deterioration and damage of the internal
elements. Take measures against the surge sources, and prevent the lines from coming into close contact.
- Do not use a load which generates surge voltage.
When a surge-generating load such as a relay or solenoid is directly driven, use the product with a surge
absorbing element built-in.
- Take measures against surge voltages due to lightning strikes in the system.
The product is CE marked but not immune to lightning strikes, so take measures against lightning strikes.
- Be aware of excessive surrounding noise
The product is CE marked and has passed the EMC test, but excessive noises in the surrounding area may
affect the functioning of the product.
- Mount the product in a location that is not affected by vibration or impact.
Failure and malfunction can occur.
- Do not let foreign matter, such as wire debris, get inside the product.
In order to avoid failure and malfunction, do not let foreign matter, such as wire debris, get inside the product.
- Do not use this product in places where there are cyclic temperature changes.
Heat cycles other than ordinary changes in temperature can adversely affect the inside of the product.
- Do not use where the product is exposed to direct sunlight.
Shade the sunlight in locations where the product is exposed to direct sunlight.
Failure and malfunction can result.
- Keep within the specified operating fluid and ambient temperature range.
The operating fluid and ambient temperature range is 5 to 50oC. Operation under low temperature may lead to
damage or operation failure due to frozen moisture in the fluid or air.
Protection against freezing is necessary. Mounting of an air dryer is recommended for elimination of drainage
and water.
Avoid abrupt temperature changes even within the specified temperature range.
- Do not use in a location where the product is exposed to radiant heat from surrounding heat sources.
This can cause operating failure.
Adjustment/Operation
- Connect a load before turning the power supply on.
If the power supply is turned on with no load, over current may flow, causing the pressure switch to break
instantly.
- Do not short circuit the load.
An error is displayed when the load of the pressure switch is short circuited, but over current may flow, causing
damage to the pressure switch.
- Do not press the setting buttons with a sharp pointed object.
This may damage the setting buttons.
- If using the product to detect very small pressures, warm up the product for 10 to 15 minutes first.
There will be a drift on the display of approx. 1% for 10 minutes after the power supply is turned on.
- Perform settings suitable for the operating conditions.
Incorrect setting can cause operation failure.
For details of each setting, refer to the Operation Manual of the pressure switch.
- Do not touch the LED during operation.
The display can vary due to static electricity.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 9 -
Maintenance
- Turn off the power supply, stop the supplied air, exhaust the residual compressed air in the piping and
verify the release of air before performing maintenance.
There is a risk of unexpected malfunction of components.
- Perform regular maintenance and inspections.
There is a risk of unexpected malfunction of components due to the malfunction of equipment and machinery.
- Perform drainage regularly.
If condensate enters the secondary side, it can cause operating failure of pneumatic equipment.
- Do not use solvents such as benzene, thinner etc. to clean the product.
They could damage the surface of the product and erase the indication on the product.
Use a soft cloth to remove stains. For heavy stains, use a cloth soaked with diluted neutral detergent, then wipe
again with a dry cloth.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 10 -
How to Order
■Ejector Unit
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 11 -
B
B
KQ2S04-M5N1
KQ2S06-M5N
KQ2L04-M5N1
KQ2S23-M5N1
KQ2S04-M5N1
KQ2S06-M5N
KQ2L23-M5N1
KQ2L04-M5N1
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 12 -
■Manifold
■Vacuum Pump Unit
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 13 -
B
KQ2S23-M5N1
KQ2S04-M5N1
KQ2S06-M5N
KQ2L23-M5N1
KQ2L04-M5N1
KQ2S04-M5N1
KQ2S06-M5N
KQ2L04-M5N1
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 14 -
■Manifold
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 15 -
Mounting and Installation
Note the following points when mounting and installing the product.
Common Precautions for Mounting and Installation
1．It is necessary to perform maintenance and replacement of the suction filter regularly to maintain the
proper operation of the ejector and vacuum pump system. Ensure sufficient space for maintenance
work when installing the product.
2．If the product is operated in a dusty environment or if there is dust on the surface of the work pieces,
it can cause clogging of the silencing material as well as the suction filter. Secure space necessary
for the maintenance checks and replacement of the silencer when the ejector performance decreases.
3．Keep the ambient temperature of the product between 5 and 50oC. In environments such as inside a
panel where heat radiation efficiency is poor, the ambient temperature will rise due to the heat
generation of the coil of the solenoid valve, causing malfunction.
4．When handling the product, do not hold the lead wires or cables of the solenoid valve or pressure
switch for vacuum. Otherwise, this may cause damage to cable connections and damage to the
product.
Mounting and installation of Single Unit Ejectors
1. When the body is mounted on the wall, tighten the screw to the tightening torque of 0.54 to 0.66Nm.
Using excessive torque may cause damage to the body
2. Do not block the exhaust port of the ejector.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 16 -
Air Supply
Use clean air.
1. Using compressed air which contains chemicals, synthetic oils containing organic solvents, salts or
corrosive gases, etc. can cause damage or malfunction. Do not use compressed air containing toxic
impurities.
2. If the compressed air contains excessive moisture or carbon powder, it can stick to the vacuum parts
(the nozzle diffuser),inside of the solenoid valve or the pressure switch and cause a decrease in
performance or operation failure. An air dryer, mist separator, and filter should be installed upstream
from filters.
If condensation in the drain bowl and air filter is not emptied on a regular basis, the bowl will overflow
and allow the condensation to enter the compressed air lines. This causes malfunction of pneumatic
equipment. If the drain bowl is difficult to check and remove, installation of a drain bowl with an auto
drain option is recommended.
3. For the compressed air quality, refer to 2.4.3, 2.5.3 and 2.6.3 of ISO8573-1:2001 (JIS B8392-1:2003).
It is recommended that an air filter and a mist separator are connected to the upstream side of the
ejector and the pump system. (Refer to Air Preparation Equipment Selection Guide in Best
Pneumatics 5 for detail.)
Supply Pressure
Use the product within the specified supply pressure range.
Operation over the specified supply pressure range can cause damage to the product.
Especially for the vacuum pump system with the nozzle type pad, the pressure inside the product can
increase due to the release pressure. Use an appropriate pressure and make sure that the vacuum
pad is not clogged.
Piping
Piping for Air and Vacuum Supply
1. Before piping
Before piping, perform air blow (flushing) or cleaning to remove any cutting chips, cutting oil, dust, etc.
from the piping.
2. When connecting tubing, consider factors such as changes in the tubing length due to pressure,
and allow a sufficient margin.
Otherwise, it can damage the fitting and cause the tube to come off. Refer to Fittings & Tubing
Precautions from 1 to 4 shown in Best Pneumatics 6 on SMC’s website
(URL http://www.smcworld.com) for the recommended piping conditions.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 17 -
 Handling of V port (when the pressure switch for vacuum is installed)
1. Allow a sufficient margin of tube length when piping, in order to prevent twisting, tensile, moment
loads, vibration or impact being applied to the tubes and fittings.
This can cause damage to the tube fittings and crushing, bursting or disconnection of tubing.
2. Piping to the product is assumed to be static piping.
If the tube moves, it may become worn, elongated or torn due to tensile forces, or disconnected
from the fitting. Ensure the tube is in a static condition at all times before using.
3. Prevent the connected tube from being rotated.
If the fittings are used in this way, the fitting may fail.
4. Do not lift the product by holding the piping after the tube is connected to the vacuum (V) port.
Connections to V port (when the vacuum pressure switch is installed)
Precautions
1. Make sure the O-rings of the One-touch fittings are free from scratches and dust.
Scratches or dust may result in air and vacuum leakage.
2. When removing or inserting the tube from/into the One-touch fitting, hold the body of the One-touch
fitting in your hand.
If it is removed or inserted without holding the body of the One-touch fitting, excessive force will be
applied to the V port assembly or the One-touch fitting assembly, and it may cause damage and/or
air leakage. Also, if a non-axial force is applied to the filter case, the case may break.
One-touch Fittings Precautions
1. Insertion of the tube
1) Cut the tube perpendicularly, being careful not to damage the external surface. Use SMC’s tube
cutter TK-1, 2 or 3 for cutting. Do not cut the tube with pliers, nippers, scissors, etc. If the tube is cut by
any tools other than a tube cutter, the cut surface of the tube will be slanted or flat, making it impossible
to be connected securely, or causing the tube to come off or air leakage after the tube is connected.
Also, allow a sufficient margin of tube length.
2) Hold the tube and push it in slowly, inserting it securely all the way into the fitting.
3) After inserting the tubing, pull on it gently to confirm that it will not come out. If it is not installed
securely all the way into the fitting, problems such as leakage or disconnection of the tube can occur.
2. Removal of the tube
1) KQ2 series is used for the vacuum (V) port. For this series, the tube can be removed by pushing
one part of the release button.
2)Hold down the release button while pulling out the tube. If the release button is not held down fully,
there will be more bite so it will be more difficult to pull out the tube.
3)If the removed tubing is to be used again, cut off the section of the tubing which has been gripped.
Using the gripped portion of the tube as it is can cause problems such as air leakage or difficulty in
removing the tube.
B
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 18 -
Precautions for Use of Other Manufacturers' Tubes If tubes of brands other than SMC are used,
confirm that the materials and tolerance of the tubing outside diameter will satisfy the following
specifications.
1) Nylon tube within +/-0.1mm
2) Soft nylon tube within +/-0.1mm
3) Polyurethane tube within +/-0.15mm and -0.2mm
Do not use tubing which does not meet these outside diameter tolerances. Connection to the fitting
may fail, causing disconnection of the tube and air leakage.
■Replacement of V Port Fittings (With vacuum pressure switch)
V port fittings are cassette style for easy replacement.
The fittings are blocked by a clip. Remove the clip with a flat blade screw driver, etc. to replace the
fittings.
When mounting the fittings, after inserting the fitting assembly until it stops, then put the clip into the
prescribed position completely.
2021-08-0215:17
DB196607

Doc. no. ZQ-OM00801-C
- 19 -
Solenoid Valve
Manual Override
Vacuum for the ejector or the vacuum
pump system is generated or released
by manual operation.
Use the manual override after confirming
That there is no danger.
When operating the locking type
with a screwdriver, turn it gently
using a watchmaker’s screwdriver.
Tightening torque: 1.7 +/-0.2Nm}
SET
RESET
- Turn the manual override to the right
and line up the arrow with 1 to lock
in the SET state (flow from P to A).
( )
- Turn the manual override to the left and line
up the arrow with 0 to return it to
the RESET state (flow from A to P).(It is set
to RESET state when shipped.)
( )
Pin
Non-locking push type (Tool required)
It is turned ON by pressing the manual
override all the way in the direction
indicated by the arrow ( ), and it is
turned OFF by releasing it.
Locking push type (Tool required) <Latching type>
Locking type (Tool required) <Semi-standard>
SET
RESET
- Turn the manual override to the right
and line up the arrow with1
to lock
in the ON state.
- Turn the manual override to the left
and line up the arrow with
0 to unlock and recover the
manual override.
Note) For the locking type manual override, be sure to release the
lock before starting the normal operation.
(
)
( )
( )
- Turn the manual override to the right
and line up the arrow with 1 to lock
in the SET state (flow from P to A).
( )
- Turn the manual override to the left and line
up the arrow with 0 to return it to
the RESET state (flow from A to P).(It is set
to RESET state when shipped.)
()
2021-08-0215:17
DB196607