SMC Networks HRR050-A-20 Series User manual

HRX-OM-X071-B
Operation Manual
Installation ･Operation
Original Instructions
Thermo-chiller
HRR050-A  -20- 
HRR050-A  -40- 
HRR050-W  -20- 
HRR050-W  -40- 
Keep this manual available whenever necessary
© 2021 SMC CORPORATION All Rights Reserved

To the users
Thank you for purchasing SMC’s Thermo chiller (hereinafter referred to as the “product”).
For safety and long life of the product, be sure to read this operation manual (hereinafter referred to as the
“manual”) and clearly understand the contents.
●Be sure to read and follow all instructions noted with “Warning” or “Caution” in this manual.
●This manual is intended to explain the installation and operation of the product. Only people who
understand the basic operation of the product through this manual or who perform installation and
operation of or have basic knowledge about industrial machines are allowed to work on the product.
●This manual and other documents attached to the product do not constitute a contract, and will not
affect any existing agreements or commitments.
●It is strictly prohibited to copy this manual entirely or partially for the use by a third party without prior
permission from SMC.
Note: This manual is subject to possible change without prior notice.

HRX-OM-X071
Contents
HRR Series
Contents
Chapter 1 Safety Instructions...........................................................1-1
1.1 Before using the product........................................................................................ 1-1
1.2 Reading the Manual ................................................................................................ 1-1
1.3 Hazards.................................................................................................................... 1-2
1.3.1 Level of hazards...................................................................................................................1-2
1.3.2 Definition of “Serious injury” and “Minor injury”....................................................................1-2
1.4 Product Label .......................................................................................................... 1-3
1.5 Safety Measures...................................................................................................... 1-4
1.5.1 Safety instructions for use....................................................................................................1-4
1.5.2 Personal protective equipment ............................................................................................1-4
1.6 Emergency Measures.............................................................................................. 1-5
1.7 Waste Disposal........................................................................................................ 1-6
1.7.1 Disposal of refrigerant and compressor oil ..........................................................................1-6
1.7.2 Disposal of product ..............................................................................................................1-6
1.8 Material Safety Data Sheet (MSDS)........................................................................ 1-7
Chapter 2 Name and Function of Parts............................................2-1
2.1 Model Number of Product....................................................................................... 2-1
2.1.1 HRR050-A/W-20-.............................................................................................................2-1
2.1.2 HRR050-A/W-40-.............................................................................................................2-2
2.2 Name and Function of Parts................................................................................... 2-3
2.2.1 HRR050-A-20/40-(Air cooled type) .................................................................................2-3
2.2.2 HRR050-W-20/40-(Water cooled type) ...........................................................................2-4
2.3 Function of Parts..................................................................................................... 2-5
2.4 Operation display panel.......................................................................................... 2-6
Chapter 3 Transport and Setting Up.................................................3-1
3.1 Transport.................................................................................................................. 3-1
3.2 Installation............................................................................................................... 3-2
3.2.1 Environment.........................................................................................................................3-2
3.2.2 Location................................................................................................................................3-4
3.2.3 Installation and Maintenance Space....................................................................................3-6
3.3 Installation............................................................................................................... 3-7
3.3.1 Mounting...............................................................................................................................3-7
3.3.2 Electrical wiring ....................................................................................................................3-8
3.3.3 Preparation and wiring of power supply cable ...................................................................3-10
3.3.4 Contact input/output communication wiring .......................................................................3-14
3.3.5 Wiring of run/stop signal input and remote signal input.....................................................3-16
3.3.6 Wiring of contact output signal...........................................................................................3-17
3.3.7 RS-485 communication wiring ...........................................................................................3-18
3.3.8 RS-232C communication wiring.........................................................................................3-20
3.4 Piping..................................................................................................................... 3-21
3.5 Fill of circulating fluid........................................................................................... 3-24

HRX-OM-X071
Contents
HRR Series
Chapter 4 Starting the Product......................................................... 4-1
4.1 Before Starting.........................................................................................................4-1
4.2 Starting and Stopping..............................................................................................4-2
4.2.1 Operation .............................................................................................................................4-2
4.2.2 Operation restart when alarm is generated.........................................................................4-3
4.2.3 Stopping the product ...........................................................................................................4-5
4.3 Adjustment of bypass valve....................................................................................4-6
4.4 Check items after starting.......................................................................................4-6
Chapter 5 Display and Setting of Various Functions...................... 5-1
5.1 List of Functions......................................................................................................5-1
5.2 Function....................................................................................................................5-2
5.2.1 Key operations.....................................................................................................................5-2
5.3 List of parameters....................................................................................................5-6
5.3.1 Main Menu...........................................................................................................................5-6
5.3.2 Alarm display menu.............................................................................................................5-6
5.3.3 Notice for maintenance Menu .............................................................................................5-6
5.3.4 Monitor Menu.......................................................................................................................5-7
5.3.5 Standard setting menu ........................................................................................................5-8
5.3.6 Alarm Setting Menu.............................................................................................................5-9
5.3.7 Communication setting menu............................................................................................5-10
5.3.8 Reset menu ....................................................................................................................... 5-11
5.3.9 Information Monitor Setting Menu ..................................................................................... 5-11
5.4 Basic setting mode................................................................................................5-12
5.4.1 Screen configuration..........................................................................................................5-12
5.4.2 Main menu.........................................................................................................................5-12
5.4.3 Alarm display menu...........................................................................................................5-14
5.4.4 Notice for maintenance Menu ...........................................................................................5-15
5.5 Advanced setting mode.........................................................................................5-17
5.5.1 Switch to advanced setting mode......................................................................................5-17
5.5.2 Display contents of monitor menu.....................................................................................5-17
5.5.3 Display contents of the standard setting menu .................................................................5-19
5.5.4 Alarm setting menu............................................................................................................5-33
5.5.5 Communication setting menu............................................................................................5-46
5.5.6 Reset menu .......................................................................................................................5-54
5.5.7 Information Monitor Menu..................................................................................................5-58
5.5.8 Alarm History menu...........................................................................................................5-62
Chapter 6 Option............................................................................... 6-1
6.1 Option DM【With electric conductivity control function, Applicable to DI water
piping】....................................................................................................................6-1
6.1.1 Option DM【With electric conductivity control function, Applicable to DI water piping】....6-1
6.2 Option M【Applicable to DI water piping】............................................................6-2
6.2.1 Option M【DI water (Applicable to DI water piping】.............................................................6-2
6.3 Option T1,T2【Inverter pump】..............................................................................6-2

HRX-OM-X071
Contents
HRR Series
6.3.1 Option T1, T2【Inverter pump】.............................................................................................6-2
6.4 Option Y【With feet / Without rack mounting brackets】.................................... 6-3
6.4.1 Option Y【With feet / Without rack mounting brackets】........................................................6-3
6.4.2 Anti-quake bracket (Optional Accessories)..........................................................................6-4
6.5 Option Z ................................................................................................................... 6-5
6.5.1 Option Z................................................................................................................................6-5
6.5.2 Option Z1..............................................................................................................................6-5
Chapter 7 Alarm Notification and Troubleshooting ........................7-1
7.1 Alarm Notification ................................................................................................... 7-1
7.2 Alarm Buzzer Stop .................................................................................................. 7-3
7.3 Troubleshooting...................................................................................................... 7-4
7.3.1 Alarm contents, causes, and troubleshooting......................................................................7-4
7.4 Other Errors............................................................................................................. 7-6
Chapter 8 Control, Inspection, Exchange and Cleaning.................8-1
8.1 Quality Control of Circulating Fluid and Facility Water ........................................ 8-1
8.2 Inspection, exchange, cleaning.............................................................................. 8-2
8.2.1 Daily check...........................................................................................................................8-3
8.2.2 Monthly check ......................................................................................................................8-4
8.2.3 Inspection every 3 months...................................................................................................8-5
8.2.4 Inspection every 6 months...................................................................................................8-8
8.3 Stop for a Long Time............................................................................................... 8-9
8.3.1 Discharge of the circulating fluid..........................................................................................8-9
8.3.2 Discharge of the facility water (Water-cooled type) ...........................................................8-12
8.4 Replacement of consumables.............................................................................. 8-14
8.4.1 Replacing Particle Filters ...................................................................................................8-14
8.4.2 Replacing the DI filter (Option DM)....................................................................................8-14
8.5 Electrical schematic diagram............................................................................... 8-16
8.5.1 HRR050-A/W*-20-*............................................................................................................8-16
8.5.2 HRR050-A*-40-*.................................................................................................................8-18
8.5.3 HRR050-W*-40-*................................................................................................................8-19
Chapter 9 Documents........................................................................9-1
9.1 Specifications.......................................................................................................... 9-1
9.1.1 HRR050-A--....................................................................................................................9-1
9.1.2 HRR050-W--...................................................................................................................9-3
9.1.3 Refrigerant with GWP reference..........................................................................................9-5
9.1.4 Communication specification ...............................................................................................9-5
9.2 Outline dimensions................................................................................................. 9-6
9.2.1 HRR050-A-20-..................................................................................................................9-6
9.2.2 HRR050-W-20-.................................................................................................................9-7
9.2.3 HRR050-A-40-..................................................................................................................9-8
9.2.4 HRR050-W-40-.................................................................................................................9-9
9.3 Flow Chart.............................................................................................................. 9-10
9.3.1 HRR050-A-20/40-...........................................................................................................9-10

HRX-OM-X071
Contents
HRR Series
9.3.2 HRR050-W-20/40-.........................................................................................................9-10
9.4 Cooling capacity....................................................................................................9-11
9.4.1 HRR050-A-20-............................................................................................................... 9-11
9.4.2 HRR050-W-20-.............................................................................................................. 9-11
9.4.3 HRR050-A-40-...............................................................................................................9-12
9.4.4 HRR050-W-40-..............................................................................................................9-12
9.5 Heating capacity ....................................................................................................9-13
9.5.1 HRR050-A/W-20-...........................................................................................................9-13
9.5.2 HRR050-A/W-40-...........................................................................................................9-13
9.6 Pump capacity........................................................................................................9-14
9.6.1 HRR050-A/W-20-...........................................................................................................9-14
9.6.2 HRR050-A/W-40-...........................................................................................................9-14
9.7 Required facility water flow (for water-cooled type)............................................9-15
9.7.1 HRR050-W-20-..............................................................................................................9-15
9.7.2 HRR050-W-40-..............................................................................................................9-15
9.8 Types of Hazard Labels .........................................................................................9-16
9.8.1 Locations of Hazard Labels...............................................................................................9-16
9.9 Daily Check ............................................................................................................9-17
Chapter 10 Product Warranty........................................................... 10-1

HRX-OM-X071
Chapter 1 Safety Instructions
HRR Series 1.1 Before using the product
1-1
Chapter 1 Safety Instructions
1.1 Before using the product
This chapter is intended to specifically describe the safety related
issues for handling the product. Read this before handling the product.
The product is a cooling device using circulating fluid. SMC does not
take any responsibility for any problems that may arise from using the
product for other purposes.
This product is for indoor use only and not to be used outdoors
This product is not designed for a clean room. It generates dust from
the internal components such as pump and fan motor.
The product is operated at high voltage and contains components
which become hot and rotate. If a component needs to be replaced or
repaired, contact a specialized vendor for parts and service.
All personnel who work with or around the product should read and
understand the safety related information in this manual carefully
before starting work.
The safety manager is responsible for strictly observing safety
standards, but responsibility in respect to safety standards during daily
work resides with each individual operator and maintenance
personnel.
Do not use the materials that rust or corrode for the circulating fluid and
facility water circuits. Using the materials that tend to rust or corrode
may cause clogs or/and leakages of the circulating fluid and facility
water circuits. In case of using these kind of materials, consider and
carry out some prevention against the rusting or corrosion on the
customer side.
This manual must be kept available to operators whenever necessary.
1.2 Reading the Manual
This manual contains symbols to help identify important actions when
installing, operating or maintaining the product.
Before using the product, be sure to read and understand all the
important actions highlighted in this manual.
This sign indicates actions that must be followed.
This sign indicates prohibited actions.

HRX-OM-X071
Chapter 1 Safety Instructions
1.3 Hazards HRR Series
1-2
1.3 Hazards
1.3.1 Level of hazards
The instructions given in this manual aim to assure the safe and correct
operation of the product, and to prevent injury of operators or damage to the
product. These instructions are grouped into three categories, Danger,
Warning and Caution, which indicate the level of hazard, damage and also
the degree of emergency. All safety critical information should be carefully
observed at all times.
“DANGER”, “WARNING” and “CAUTION” signs are in order according to
severity (DANGER> WARNING> CAUTION).
1.3.2 Definition of “Serious injury” and “Minor injury”
“Serious injury”
This term describes injuries that result in after effects including loss of
eyesight, burns, electric shock, fracture, poisoning, etc. and requires
long-term treatment or hospitalization.
“Minor injury”
This term describes injuries that do not need long-term treatment or
hospitalization. (Others excluded from “Serious injury”.)
“WARNING”: Hazard that MAY cause serious personal injury or death during
operation.
“DANGER”: Hazard that WILL cause serious personal injury or death during
operation.
“CAUTION”: Hazard that MAY cause minor personal injury.
“CAUTION without exclamation symbol”: Hazard that MAY cause damage or failure
of the product, facility, devices, etc.

HRX-OM-X071
Chapter 1 Safety Instructions
HRR Series 1.4 Product Label
1-3
1.4 Product Label
Information about the product, such as Serial No. and Model No. can be
found on the product label. This information is needed when contacting an
SMC sales distributor.
How to read the serial number y T 001 （Jun 2020）
y
T
001
Year
Symbol
Remarks
Month
Symbol
Remarks
Serial no.
2020
y
Repeated from A to Z in
alphabetical order
4
R
Repeated from
O to Z in alphabetical
order, with O for
January and Z for
December
－
2021
Z
5
S
2022
A
6
T
↓
↓
↓
↓
Fig 1-1 Position of product label
Model number
Serial number
Type and
quantity of
refrigerant

HRX-OM-X071
Chapter 1 Safety Instructions
1.5 Safety Measures HRR Series
1-4
1.5 Safety Measures
1.5.1 Safety instructions for use
Read and understand this manual carefully before using the product.
Before starting maintenance of the product, be sure to lock out and tag out
the breaker of the user's power supply.
If operating the product during maintenance, be sure to inform all workers
nearby.
Use only the correct tools and procedure when installing or maintaining
the product.
Use personal protective equipment where specified (“1.5.2 Personal
protective equipment”).
Check all parts and screws are fitted correctly and securely after
maintenance.
Avoid working in a drunken or sick condition, which might cause an
accident.
Do not remove the panels except for the cases permitted in this manual.
Do not remove the panels during operation.
1.5.2 Personal protective equipment
This manual specifies personal protective equipment for each type of work.
Transport, Installing and Uninstalling
Handling of circulating fluid
Operation
Follow the instructions below when using the product. Failure to
follow the instructions may cause an accident and injury.
Always use safety shoes, gloves and head protection when
transporting, installing or uninstalling the product.
Always use safety shoes, gloves, mask, apron and eye protection
when handling the circulating fluid.
Always use safety shoes and gloves when operating the product.

HRX-OM-X071
Chapter 1 Safety Instructions
HRR Series 1.6 Emergency Measures
1-5
1.6 Emergency Measures
When emergency conditions such as natural disaster, fire and earthquake, or
injury occurs, turn off the power supply switch. After that, be sure to shut off
the breaker of the original power supply (customer's power supply
equipment).
1. Turn off the power supply switch on the front of the product to stop the operation of the
thermo-chiller.
Fig 1-2 Location of the switch for the power supply
2. Be sure to shut off the breaker of the facility power supply (the power supply of the
user’s machine).
Fig 1-3 Shut off of facility power supply
OFF
Even when the power supply swich is turned off, some of the internal
circuits are still energized, unless the user’s power supply is shut off.
Be sure to shut off the breaker of the user’s power supply.
OFF
200V type
400V type

HRX-OM-X071
Chapter 1 Safety Instructions
1.7 Waste Disposal HRR Series
1-6
1.7 Waste Disposal
1.7.1 Disposal of refrigerant and compressor oil
The product uses hydro fluorocarbon type refrigerant (HFC) and compressor
oil. Comply with the laws and regulations in each country for the disposal of
refrigerant and compressor oil. The type and quantity of refrigerant is
described on the “1.4 Product Label”.
If these fluids need to be recovered, read and understand the instructions
below carefully. If there is any unclear point, contact an SMC's sales
distributor.
1.7.2 Disposal of product
The disposal of the product must be handled by a specialized industrial waste
disposal agency in accordance with local laws and regulations.
Only maintenance personnel or qualified people are allowed to open
the cover panels of the product.
Do not mix the compressor oil with domestic waste for disposal. Also,
the disposal of the waste must only be conducted by specific
facilities that are permitted for that purpose.
Comply with the laws and regulations in each country for the disposal
of refrigerant and compressor oil.
The release of refrigerant in to the atmosphere is banned by law.
Recover it with specific equipment and dispose of it correctly.
Only people who have sufficient knowledge and experience about the
product and its accessories are allowed to recover the refrigerant and
compressor oil.

HRX-OM-X071
Chapter 1 Safety Instructions
HRR Series 1.8 Material Safety Data Sheet (MSDS)
1-7
1.8 Material Safety Data Sheet (MSDS)
If the material safety data sheets of chemicals used in this product are
needed, contact an SMC's sales distributor.
Any chemicals used by the user must be accompanied by an MSDS.

HRX-OM-X071
Chapter 1 Safety Instructions
1.8 Material Safety Data Sheet (MSDS) HRR Series
1-8

HRX-OM-X071
Chapter 2 Name and Function of Parts
HRR Series 2.1 Model Number of Product
2-1
Chapter 2 Name and Function of Parts
2.1 Model Number of Product
The product can be ordered with the model number configured as shown
below.
The product needs to be handled in different ways depending on the part
number. Refer to “1.4 Product Label" and check the part number of the
product.
2.1.1 HRR050-A/W-20-
Fig 2-1 Part number of product(1/2)
A4600W/5100W (50/60Hz)
HRR - - -
050
①Cooling method,Cooling capacity
②Pipe thread type
Null Rc
F G (With Rc-G conversion fitting set)
N NPT (With Rc-NPTconversion fitting set
④Option1
③Power supply
Null None
Single-phase 200 to 230VAC (50/60Hz)20
20
･When multiple options are combined,
indicate symbols in alphabetical order.
U
⑤Option2
W 5000W/5900W (50/60Hz)
With feet /
Without rack mounting brackets
Y
Null None
no flow sensor,
no bypass valve,no particle filter,
no water leakage sensor
Z 1
no flow sensorZ1 1
1 Only option Z or Z1 can be selected.
Applicable to
DI water piping
M
With electric conductivity control
function, Applicable to
DI water piping
DM
Water-cooled refrigeration
Air-cooled refrigeration

HRX-OM-X071
Chapter 2 Name and Function of Parts
2.1 Model Number of Product HRR Series
2-2
2.1.2 HRR050-A/W-40-
Fig 2-2 Part number of product(2/2)
A4800W/5800W (50/60Hz)
HRR -- -
050
①Cooling method,Cooling capacity
②Pipe thread type
Null Rc
F G (With Rc-G conversion fitting set)
N NPT (With Rc-NPTconversion fitting set
④Option1
③Power supply
Null None
3phase 380 to 415VAC (50/60Hz)
3phase 460 to 480VAC (60Hz)
40
40
･When multiple options are combined,
indicate symbols in alphabetical order.
U
⑥Option3
W 5500W/5900W (50/60Hz)
With feet /
Without rack mounting brackets
Y
Null None
no flow sensor,
no bypass valve,no particle filter,
no water leakage sensor
Z 1
no flow sensorZ1 1
1 Only option Z or Z1 can be selected.
Applicable to
DI water piping
M
With electric conductivity control
function, Applicable to
DI water piping
DM
Water-cooled refrigeration
Air-cooled refrigeration
T1
T1
⑤Option2*2
T2 High pressure inverter pump
Inverter pump
 Be sure to select either one.

HRX-OM-X071
Chapter 2 Name and Function of Parts
HRR Series 2.2 Name and Function of Parts
2-3
2.2 Name and Function of Parts
2.2.1 HRR050-A-20/40-(Air cooled type)
Fig 2-3 Names of the parts
Table 2-1 Accessory list
1 In the case of option Z, not included.
①
Operation manual
2 copies
(English 1 copy/
Japanese 1 copy)
②
Power supply connector
1 pc.
③
Maintenance handle for particle filter 1
Use this handle only to loosen the
case. Do not use to tighten the case.
1 pc.
④
Particle filter element 1
1 pc.
⑤
For option DM DI filter
1 pc.
⑥
For HRR050-AF-20/40-
G thread adapter set
1 set
For HRR050-AN-20/40-
NPT thread adapter set
1 set

In the case of option Z, without bypass valve

HRX-OM-X071
Chapter 2 Name and Function of Parts
2.2 Name and Function of Parts HRR Series
2-4
2.2.2 HRR050-W-20/40-(Water cooled type)
Fig 2-4 Names of the parts
Table 2-2 Accessory list

1 In the case of option Z, not included.
①
Operation manual
2 copies
(English 1 copy/
Japanese 1 copy)
②
Power supply connector
1 pc.
③
Maintenance handle for particle filter 1
*Use this handle only to loosen the
case. Do not use to tighten the case.
1 pc.
④
Particle filter element 1
1 pc.
⑤
For option DM DI filter
1 pc.
⑥
For HRR050-WF-20/40-
G thread adapter set
1 set
For HRR050-WN-20/40-
NPT thread adapter set
1 set

In the case of option Z, without bypass valve

HRX-OM-X071
Chapter 2 Name and Function of Parts
HRR Series 2.3 Function of Parts
2-5
2.3 Function of Parts
The function of parts is as follows
Table 2-3 Function of parts
Name
Name
Operation display panel
Runs and stops the product and performs settings such as the circulating
fluid temperature.
For details, refer to ’’2.4 Operation display panel’’.
Fluid level gauge
Indicates the circulating fluid level of the tank. For details, refer to ’’3.5 Fill
of circulating fluid’’.
Power supply switch
Shuts off the power supply to the internal eqipment of product.
Model label
Shows the part number of the product.
For details, refer to ‘’1.4 Product Label’’.
Circulating fluid outlet port
The circulating fluid flows out from the outlet port.
Circulating fluid return port
The circulating fluid returns to the return port.
Drain port
Port to drain the circulating fluid out of the tank.
Power supply connector
Connect the power cable to the Power supply connector
accessory, and then plug it in.
For details, refer to " 3.3.3 Preparation and wiring of power supply cable
".
Communication connector
CN1,CN2
Use for contact input / output, serial communication.
For details, refer to "3.3.3 Preparation and wiring of power supply
cable".
Facility water inlet
(For water-cooled type)
A facility water inlet to which the facility water is fed through piping.
The pressure of facility water should be in a range of 0.3 to 0.5MPa.
Facility water outlet
(For water-cooled type)
A facility water outlet from which the facility water returns to the user’s
machine through piping.

HRX-OM-X071
Chapter 2 Name and Function of Parts
2.4 Operation display panel HRR Series
2-6
2.4 Operation display panel
The operation panel on the front of the product controls the basic operation of
the product
図2-5 操作表示パネル
Table 2-4 Operation display panel
No
Name
Function
Reference
page
①
Digital display
(7 segment,
5 digits)
Displays the temperature,pressure and flow rate of the circulating fluid
and the set values of other menus.
5.2
②
Digital display
(11 segment,
5 digits)
Displays the discharge temperature of the circulating fluid and the set
values of other menus.
③
[oC] lamp
Lights up when temperature is displayed on the digital display.
④
[MPa] lamp
Lights up when pressure is displayed on the digital display part.
⑤
[LPM] lamp
Lights up when flow rate is displayed on the digital display part.
⑥
[H] lamp
Lights up when time is displayed on the digital display section.
⑦
[SEC] lamp
Lights up when seconds are displayed on the digital display section.
⑧
[RUN] lamp
Lights up when the product is started and in operation.
4
⑨
[ALM] lamp
Lights up when a fault occurs.
(This product will stop.)
7
⑩
[WRN] lamp
Lights up when a warning occurs.
(This product will continue operation.)
⑪
[] lamp
Lights up when 「AL.01 Tank level drop failure」or
「AL.02 Tank level drop」alarm is generated.
-
⑫
Digital display
(11 segment,
1 digits)
「X」is displayed when notice for maintenance is generated.
5.4.4
⑬
[RMT] amp
Lights up during remote operation by communication function.
5
⑭
[KEYLOCK] amp
Lights up when key lock setting is active.
5.5.3
⑮
［RUN/STOP］key
Press and hold for 1 second to start or stop.
4.2
⑯
[MENU] key
Switching of each menu and cancellation of setting values.
5
⑰
[ENT] key
Switch to setting mode and set values.
⑱
[▲] key
Move item upward or increase the set value.
-
⑲
[▼] key
Move item downward or decrease the set value.
-
⑳
[RESET] key
Reset the alarm.
7
▲
▼
ENT
MENU
RUN/
STOP
RESET
℃
MPa
LPM
SEC
ALM
WRN
RUN
RMT
H
15
20
16
17
18
19
12
14
2
1
6
7
5
4
3
13
8
9
10
11