SMC Networks HRS012-W*-10-*, HRS012-A*-20-*, HRS018-A*-10-*, HRS018-W*-10-*, HRS012-W*-20-* Operation Manual

HRX-OM-M090

1

st

edition: Jul. 2009
Rev.M: Mar. 2013

Operation Manual

Installation･Operation

Original Instructions

Thermo chiller

Air-Cooled

refrigerated type

Water-Cooled

refrigerated type

HRS012-A∗-10-∗ HRS012-W∗-10-∗
HRS018-A∗-10-∗ HRS018-W∗-10-∗
HRS012-A∗-20-∗ HRS012-W∗-20-∗
HRS018-A∗-20-∗ HRS018-W∗-20-∗
HRS024-A∗-20-∗ HRS024-W∗-20-∗

Keep this manual available whenever necessary

© 2013 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 priornotice.

HRX-OM-M090

Contents

HRS 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

1.3.3 Types of hazard labels ........................................................................................................ 1-3

1.3.4 Locations of Hazard Labels................................................................................................. 1-4

1.4 Other Labels ............................................................................................................... 1-5

1.4.1 Product Label ...................................................................................................................... 1-5

1.5 Safety Measures.........................................................................................................1-5

1.5.1 Safety Instructions for Use .................................................................................................. 1-5

1.5.2 Personal Protective Equipment........................................................................................... 1-6

1.6 Emergency Measures ................................................................................................ 1-7

1.7 Waste disposal...........................................................................................................1-8

1.7.1 Disposal of refrigerant and compressor oil.......................................................................... 1-8

1.7.2 Disposal of product.............................................................................................................. 1-8

1.8 Material Safety Data Sheet (MSDS) ..........................................................................1-8

Chapter 2 Name and Function of Parts............................................. 2-1

2.1 Part number of product .............................................................................................2-1

2.2 Name and Function of Parts .....................................................................................2-2

2.3 Function of Parts........................................................................................................2-3

2.4 Operation display panel ............................................................................................2-4

Chapter 3 Transport and Setting Up ................................................. 3-1

3.1 Transport ....................................................................................................................3-1

3.1.1 Transportation using casters............................................................................................... 3-2

3.2 Installation .................................................................................................................. 3-3

3.2.1 Environment ........................................................................................................................ 3-4

3.2.2 Location (Required ventilation rate and facility water source) ............................................ 3-5

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 .................................................................... 3-9

3.3.4 Wiring of remote operation signal input..............................................................................3-11

3.3.5 Wiring of operation signal output and alarm signal output................................................ 3-13

3.3.6 RS-485 Communication wiring.......................................................................................... 3-14

3.3.7 RS-232C Communication wiring ....................................................................................... 3-15

3.4 Piping ........................................................................................................................ 3-16

HRX-OM-M090
Contents

HRS Series

3.5 Fill of circulating fluid..............................................................................................3-18

3.6 Option J Piping of【Automatic fluid filling】 ....................................................... 3-19

3.7 Wiring of external switch ........................................................................................3-20

3.7.1 Reading of the External switch .......................................................................................... 3-21

3.7.2 Wiring................................................................................................................................. 3-22

3.7.3 Setting items ...................................................................................................................... 3-23

Chapter 4 Starting the Product.......................................................... 4-1

4.1 Before Starting........................................................................................................... 4-1

4.2 Preparation for Start ..................................................................................................4-2

4.2.1 Power supply .......................................................................................................................4-2

4.2.2 Setting of circulating fluid temperature ................................................................................4-2

4.3 Preparation of circulating fluid.................................................................................4-3

4.4 Starting and Stopping................................................................................................4-6

4.4.1 Starting the product..............................................................................................................4-6

4.4.2 Stopping the product............................................................................................................4-7

4.5 Check items after starting.........................................................................................4-8

4.6 Adjustment of Circulating Fluid ...............................................................................4-8

Chapter 5 Display and setting of various functions........................ 5-1

5.1 Function...................................................................................................................... 5-2

5.1.1 Key operations.....................................................................................................................5-2

5.1.2 List of parameters ................................................................................................................ 5-4

5.2 Main screen ................................................................................................................5-7

5.2.1 Main screen ......................................................................................................................... 5-7

5.2.2 Display on the main screen .................................................................................................5-7

5.3 Alarm display menu................................................................................................... 5-8

5.3.1 Alarm display menu .............................................................................................................5-8

5.3.2 Content of display of alarm display menu............................................................................ 5-8

5.4 Inspection monitor menu .......................................................................................... 5-9

5.4.1 Inspection monitor menu .....................................................................................................5-9

5.4.2 Checking of the Inspection monitor menu ...........................................................................5-9

5.5 Key-lock.................................................................................................................... 5-13

5.5.1 Key-lock ............................................................................................................................. 5-13

5.5.2 Key-lock setting / checking ................................................................................................5-14

5.6 Run timer, stop timer function................................................................................ 5-15

5.6.1 Run timer and stop timer function...................................................................................... 5-15

5.6.2 Setting and checking of Run timer and stop timer function...............................................5-17

5.7 Signal for completion of preparation (TEMP READY) ..........................................5-19

5.7.1 Signal for completion of preparation (TEMP READY).......................................................5-19

5.7.2 Signal for completion of preparation (TEMP READY) setting / checking.......................... 5-20

5.8 Offset function .........................................................................................................5-22

HRX-OM-M090

Contents

HRS Series

5.8.1 Offset function ................................................................................................................... 5-22

5.8.2 Offset function setting and checking ................................................................................. 5-24

5.9 Function to recover from power failure .................................................................5-26

5.9.1 Function to recover from power failure.............................................................................. 5-26

5.9.2 Function to recover from power failure setting and checking........................................... 5-27

5.10 Anti-freezing function..............................................................................................5-28

5.10.1 Anti-freezing function......................................................................................................... 5-28

5.10.2 Anti-freezing function setting and checking....................................................................... 5-29

5.11 Key click sound setting...........................................................................................5-30

5.11.1 Key click sound setting...................................................................................................... 5-30

5.11.2 Key click sound setting and checking ............................................................................... 5-30

5.12 Temperature unit switching ....................................................................................5-31

5.12.1 Temperature unit switching ............................................................................................... 5-31

5.12.2 Temperature unit switching setting and checking............................................................. 5-31

5.13 Pressure unit switching ..........................................................................................5-32

5.13.1 Pressure unit switching ..................................................................................................... 5-32

5.13.2 Pressure unit switching setting and checking .................................................................. 5-32

5.14 Alarm buzzer sound setting....................................................................................5-33

5.14.1 Alarm buzzer sound setting............................................................................................... 5-33

5.14.2 Alarm buzzer sound setting and checking........................................................................ 5-33

5.15 Alarm customize function ....................................................................................... 5-34

5.15.1 Alarm customize function .................................................................................................. 5-34

5.15.2 Alarm customize function setting and checking ................................................................ 5-36

5.15.3 Setting of temperature alarm monitoring method and alarm generation timing................ 5-49

5.16 Data reset function...................................................................................................5-51

5.16.1 Data reset function ............................................................................................................ 5-51

5.16.2 Method of resetting data reset function............................................................................. 5-51

5.17 Accumulated time reset function ...........................................................................5-52

5.17.1 Accumulated time reset function ....................................................................................... 5-52

5.17.2 Method of resetting accumulated time reset function ....................................................... 5-52

5.18 Communication function......................................................................................... 5-54

5.18.1 Communication function.................................................................................................... 5-54

5.18.2 Communication function setting and checking.................................................................. 5-54

5.19 Option J [Automatic fluid filling] ............................................................................5-71

5.19.1 Option J [Automatic fluid filling] ......................................................................................... 5-71

5.20 Option [Drain pan set] .............................................................................................5-72

5.20.1 Option [Drain pan set] ....................................................................................................... 5-72

5.20.2 Option [Drain pan set] setting and checking ..................................................................... 5-73

5.21 Option [Electric resistivity sensor set] ..................................................................5-74

5.21.1 Option [Electric resistivity sensor set] ............................................................................... 5-74

HRX-OM-M090
Contents

HRS Series

5.21.2 Option [Electric resistivity sensor set] setting and checking..............................................5-75

Chapter 6 Alarm indication and trouble shooting ........................... 6-1

6.1 Alarm Display............................................................................................................. 6-1

6.2 Alarm buzzer stop...................................................................................................... 6-3

6.3 Troubleshooting.........................................................................................................6-4

6.4 Other Errors................................................................................................................6-6

Chapter 7 Control, Inspection and Cleaning.................................... 7-1

7.1 Control of Circulating Fluid Quality ......................................................................... 7-1

7.2 Inspection and Cleaning ...........................................................................................7-2

7.2.1 Daily check ..........................................................................................................................7-2

7.2.2 Monthly check......................................................................................................................7-3

7.2.3 Inspection every 3 months................................................................................................... 7-4

7.2.4 Inspection every 6 months................................................................................................... 7-4

7.2.5 Inspection for winter season................................................................................................ 7-5

7.3 Consumables .............................................................................................................7-5

7.4 Stop for a Long Time ................................................................................................. 7-6

7.4.1 Discharge of the circulating fluid and facility water.............................................................. 7-6

Chapter 8 Documents......................................................................... 8-1

8.1 Specifications List .....................................................................................................8-1

8.1.1 Product specification............................................................................................................8-1

8.1.2 Communication specifications .............................................................................................8-3

8.2 Outline dimensions....................................................................................................8-4

8.3 Flow Chart ..................................................................................................................8-5

8.3.1 HRS012-A∗-∗0, HRS018-A∗-∗0, HRS024-A∗-20............................................................... 8-5

8.3.2 HRS012-W∗-∗0, HRS018-W∗-∗0, HRS024-W∗-20............................................................ 8-5

8.4 Cooling capacity ........................................................................................................8-6

8.4.1 HRS012-∗∗-10-(BJM) ..........................................................................................................8-6

8.4.2 HRS018-∗∗-10-(BJM) ..........................................................................................................8-6

8.4.3 HRS012-∗∗-20-(BJMT) ........................................................................................................8-7

8.4.4 HRS018-∗∗-20-(BJMT) ........................................................................................................8-7

8.4.5 HRS024-∗∗-20-(BJMT) ........................................................................................................8-7

8.4.6 Option G [High temperature type]........................................................................................ 8-8

8.5 Heating capacity ........................................................................................................8-9

8.5.1 HRS012-∗∗-10,HRS018-∗∗-10 ............................................................................................8-9

8.5.2 HRS012-∗∗-20,HRS018-∗∗-20, HRS024-∗∗-20................................................................... 8-9

8.6 Pump capacity..........................................................................................................8-10

8.6.1 HRS012-∗∗-10-(BJM), HRS018-∗∗-10-(BJM)....................................................................8-10

8.6.2 HRS012-∗∗-20-(BGJM), HRS018-∗∗-20-(BGJM), HRS024-∗∗-20-(BGJM)....................... 8-10

8.6.3 Option:-T............................................................................................................................ 8-11

8.6.4 Option:-MT......................................................................................................................... 8-11

HRX-OM-M090

Contents

HRS Series

8.7 Required facility water flow (for water-cooled type)............................................. 8-12

8.8 Compliance...............................................................................................................8-13

8.9 Sample DoC..............................................................................................................8-14

8.10 Daily Check Sheet....................................................................................................8-15

Chapter 9 Product Warranty .............................................................. 9-1

HRX-OM-M090
Contents

HRS Series

HRX-OM-M090

Chapter 1 Safety Instructions

HRS Series 1.1 Before using the product

1-1

Chapter 1 Safety Instructions

1.1 Before using the product

z

This chapter is intended to specifically describe the safety related issues
for handling the product. Read this before handling the product.

z

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.

z

This product is for indoor use only and not to be used outdoors.

z

This product is not designed for a clean room. It generates dust from the
internal components such as pump and fan motor.

z

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.

z

All personnel who work with or around the product should read and
understand the safety related information in this manual carefully before
starting work.

z

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 maintainance personnel.

z

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-M090

Chapter 1 Safety Instructions

1.3 Hazards HRS 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, electrical 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.)

“DANGER”: Hazard that WILL cause serious personal injury or death during
operation.

“WARNING”: Hazard that MAY 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, ect.

HRX-OM-M090

Chapter 1 Safety Instructions

HRS Series 1.3 Hazards

1-3

1.3.3 Types of hazard labels

The product has various potential hazards and they are marked with
warning labels. Be sure to read this section before starting any work on the
product.

 Warning related to electricity

 Warning related to high temperatures

 Warning related to rotating objects

 Warning related to other general dangers

This symbol stands for a possible risk of electric shock.

The product is operated at high voltage and contains uncovered live
terminals inside.
z DO NOT operate the product without cover panels fitted.
DO NOT work inside this product unless you have been trained to do

so.

This symbol stands for general danger.

Hazards Inside

Hot Surfaces Inside – See Hot Surface symbol
Rotating Fan Inside – See Rotating Fan symbol (For air-cooled type)
Pressurized Sytem Inside – The product contains pressurised fluid
systems.

z DO NOT operate the product without cover panels fitted.

This symbol stands for a possible risk of hot surface and burns.

The product has surfaces that can reach high temperatures during
operation. Even after the power is turned off, there can still be residual
heat in the product.

z DO NOT operate the product without cover panels fitted.
z DO NOT start working inside the product until the temperature has

decreased sufficiently.

This symbol stands for a possible risk of cutting fingers or hand, or
entanglement by rotating fan (For air-cooled type).
The product contains a cooling fan that rotates during operation of the
product.
The fan can start and stop intermittently and without warning.
z DO NOT operate the product without cover panels fitted.

HRX-OM-M090

Chapter 1 Safety Instructions

1.3 Hazards HRS Series

1-4

1.3.4 Locations of Hazard Labels

There are various warning labels on the product to show the potential
hazards.

Fig. 1-1 Warning label position

∗ For air-cooled type

Fig.

1-2 Warning label position

Rear

Front

HRX-OM-M090

Chapter 1 Safety Instructions

HRS Series 1.4 Other Labels

1-5

1.4 Other Labels

1.4.1 Product Label

Information about the product, such as Serial No. and Model No. can be
found on the model label. This information is needed when contacting an
SMC sales distributor.

How to see the manufacturing code R

O 001 （January 2013）

O O 001

Year Symbol Remarks Month Symbol Remarks

Serial

no.

2013 R

1 O

2014 S 2 P
2015 T 3 Q

↓ ↓

Repeated
from
A to Z in
alphabetical
order

↓ ↓

Repeated from
O to Z in alphabetical
order, with O for
January and Z for
December

－

Fig. 1-3 Position of product label

1.5 Safety Measures

1.5.1 Safety Instructions for Use

z

Read and understand this manual carefully before using the product.

z

Before starting maintenance of the product, be sure to lock out and tag out the
breaker of the user's power supply.

z

If operating the product during maintenance, be sure to inform all workers nearby.

z

Use only the correct tools and procedure when installing or maintaning the product.

z

Use personal protective equipment where specified (“1.5.2 Personal Protective
Equipment”)

z

Check all parts and screws are fitted correctly and securely after maintenance.

z

Avoid working in a drunken or sick condition, which might cause an accident.

z

Do not remove the panels except for the cases permitted in this manual.

z

Do not remove the panels during operation.

Follow the instructions below when using the product. Failure to
follow the instructions may cause an accident and injury.

∗

(It is an example of model "HRS018-A-20".)

Model Number

Serial Number
(SERIAL No.)

The type and quantity
of refrigerant
(REFRIGERANT)

HRX-OM-M090

Chapter 1 Safety Instructions

1.5 Safety Measures HRS Series

1-6

1.5.2 Personal Protective Equipment

This manual specifies personal protective equipment for each work.

 Transport, Installing and Uninstalling

 Handling of circulating fluid

 Operation

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-M090

Chapter 1 Safety Instructions

HRS Series 1.6 Emergency Measures

1-7

1.6 Emergency Measures

When emergency conditions such as natural disaster, fire and earthquake,
or injury occurs, turn off the power supply switch. The switch is located at
the front of the product.

1. Turn off the power supply switch at the back of the product to stop the operation of the

thermo-chiller.

Fig. 1-4 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. 1-5 Shut off of facility power supply

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.

HRX-OM-M090

Chapter 1 Safety Instructions

1.7 Waste disposal HRS Series

1-8

1.7 Waste disposal

1.7.1 Disposal of refrigerant and compressor oil

The product uses hydrofluorocarbon 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 1.4.1 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.

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.

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.

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.

HRX-OM-M090

Chapter 2 Name and Function of Parts

HRS Series 2.1 Part number of product

2-1

Chapter 2 Name and Function of Parts

2.1 Part number of product

The product can be ordered with the part number configured as shown
below.
The product needs to be handled in different ways depending on the part
number. Refer to “1.4.1 Product Label” and check the part number of the
product.

Fig. 2-1 Part number of product

10A012

012

HRS

①Cooling capacity

②Cooling method

③Piping thread type

④Power supply

-

Null

F

N

-

Rc

G (PT-G conversion fitting is included)

NPT (PT-NPTconversion fitting is included)

A Air-cooled refrigerator type

W Water-cooled refrigerator type

20 1-phase AC200～230V(50/60Hz)

10

1-phase AC100V(50Hz)

1-phase AC100~115V(60Hz)

018

024

∗1 ④Power supply：-10(100V Type)
∗2 ④Power supply：-20(200V Type)
∗3 ④Power supply：Only -20(200V Type)can be chosen.
∗4 ②Cooling method：-A(Air-cooled refrigerator type),

　　④Power supply：Only -20(200V Type)can be chosen.

1100W/1300W (50/60Hz)

1500W/1700W (50/60Hz)(∗1)

1700W/1900W (50/60Hz)(∗2)
2100W/2400W (50/60Hz)(∗3)

-

⑤Option

Null None

J Automatic water-supply

M Pure water piping

T High-pressure pump mounted

B Earth leakage breaker

G High temperature type(∗4)

HRX-OM-M090

Chapter 2 Name and Function of Parts

2.2 Name and Function of Parts HRS Series

2-2

2.2 Name and Function of Parts

Fig. 2-2 Names of each part

Table 2-1 Accessories list

1

Quick manual

1pc.

(with a clear cover)

2

Alarm code list label

1pc.

3

Operation Manual

2pcs.

(Jpn: 1pc., Eng:1pc.)

4

Power supply connector

1pc.

5

Sequence I/O command signal
connector

1pc.

6

Fitting (for drain port)*

1pc.

7

Ferrite core (for communication)

1pc.

∗ Not included when option [High head pump] is selected.

HRX-OM-M090

Chapter 2 Name and Function of Parts

HRS Series 2.3 Function of Parts

2-3

2.3 Function of Parts

The function of parts is as follows.

Table 2-2 Function of parts

Name Function

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’’.

Power supply switch

Shuts off the power supply to the internal eqipment of product.
Circuit protector 10A

Model label

Shows the part number of the product.
For details, refer to ‘’1.4.1 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

This drain port to drain the circulating fluid out of the tank.
(The plug is connected to standard pump type at the time of shipment. The
ball valve is installed in the high pump head type.)

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.

Automatic water-fill port
(When automatic fluid filling
[Option] is selected.)

Piping to the automatic fluid filling port enables easy supply of the circulating
fluid through the built-in solenoid valve.The supply pressure should be in a
range of 0.2 to 0.5MPa.

Overflow port
(When automatic fluid filling
[Option] is selected.)

This is necessary when automatic fluid filling function.Discharge excess
circulating fluid when the fluid level in the tank rises.

HRX-OM-M090

Chapter 2 Name and Function of Parts

2.4 Operation display panel HRS Series

2-4

2.4 Operation display panel

The operation panel on the front of the product controls the basic operation
of the product.

Fig. 2-3 Operation display panel

Table 2-3 Operation display panel

No Description Function

Reference

page

PV

Displays the temperature and pressure of the circulating
fluid and alarm codes.

①

Digital display

(7 segment,

4 digits)

SV

Displays the set temperature of the circulating fluid and
the set values of other menus.

5.2

② [ oC oF ] lamp Displays the unit of display temperature (℃ or oF). 5.12

③ [MPa PSI] lamp Displays the unit of display pressure (MPa or PSI). 5.13

④ [REMOTE] lamp Lights up during remote operation by communication. 5.18

⑤ [RUN] lamp

・Lights up when the product is started and in operation. Goes off

when the product is stopped.

・Flashes during stand-by for stop (Interval 0.5 seconds).
・Flashes during independent operation of the pump (Interval

0.3 seconds).
・Flashes during anti-freezing function (At standby: Interval 2
seconds, At operation: Interval 0.3 seconds).

4.4

⑥ [ALARM] lamp Flashes with buzzer when alarm occurs (Interval 0.3 seconds). 5.3
⑦

[ ] lamp Lights up when the tank level indicator falls below the LOW level. 4.3

⑧

[ ] lamp Lights up while the run timer or stop timer function is working. 5.6

⑨

[ ] lamp

Lights up when the product is in automatic operation.

5.9

⑩ [RUN/STOP] key

Makes the product start or stop.

4.4

⑪ [MENU] key

Shifts the main menu (display screen of temperature) the other
menu (entry of set values and monitor screen).

⑫ [SEL] key

Changes the item in menu and enters the set value.

5.1

⑬ [▼] key

Decreases the set value.

⑭ [▲] key

Increases the set value.

-

⑮ [PUMP] key

When the [MENU] and [RUN/STOP] keys are held down
simultaneously, the pump starts running independently.

4.3

⑯ [RESET] key

Keep the [▼] and [▲] keys pressed down simultaneously. This will
stop the alarm buzzer and reset the [ALARM] lamp.

6.3

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.1 Transport

3-1

Chapter 3 Transport and Setting Up

3.1 Transport

The product is heavy and has potential danger at transport. Also, to prevent
damage and breakage of the product, be sure to follow these instructions for
transport.

Only persons who have sufficient knowledge and experience about the

product and system are allowed to transport and set up the
product.

Especially pay attention to personal safety.

Never lay the product on its side.
The compressor oil will leak in to the refrigerant piping, which may
cause early failure of the compressor.

Drain the residual fluid from the piping as much as possible to prevent

any spillage.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.1 Transport HRS Series

3-2

3.1.1 Transportation using casters

1. Release the lock levers of the front casters.

2. Push the handles on the right/left panel or the corner of the product to move the product

to the destination.
Do not hold the product by the cap to move it. This will apply excess force to the piping of
internal parts which may lead to malfunctions such as fluid leakage.

3. To push the front or rear panel, push it by the corner. Pushing by the center of the panel

may deform the shape.Care should be taken.

Fig. 3-1 Transportation using casters

Handle

Unlocking

Press

Corners

This product is heavy.
Care should be taken when the product is transported on a slope.

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.2 Installation

3-3

3.2 Installation

Keep the product horizontal to a rigid and flat floor which can resist

the weight of the product, and take measures to prevent the
product from tipping over. Improper installation may cause water
leakage, tipping, damage of the product or injure the operator.

Keep the ambient temperature of the product between 5 to 40

o

C.

Operation below 5

o

C may cause the compressor failure, and

operation above 40

o

C may cause the product to overheat and shut

down.

∗

The operating ambient temperature is 5 to 45deg. C for option G

[Hig

h temperature type].

Do not set up the product in places possibly exposed to leakage of

flammable gas. Should any flammable gas stay around the
product, the product may cause a fire.

Do not use the product outdoors. If the product subjected to rain or

water splash it may cause electrical shock, fire or failure.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.2 Installation HRS Series

3-4

3.2.1 Environment

The product must not be operated, installed, stored or transported in the
following conditions. Potential malfunction or damage to the product may
occur if these instructions are disregarded.

The product does not conform to any Clean room specifications. The pump
and ventilating fan inside the product generate particles.

The installer/end user is responsible for carrying out an acoustic noise risk
assessment on the equipment after installation and taking appropriate
measures as required.

z

Location that is outside.

z

Location that is exposed to water, water vapour, steam, salt water or oil.

z

Location that is exposed to dust or powder material.

z

Location that is exposed to corrosive gas, organic solvent, chemical
solution, or flammable gas (the product is not flame-proof)

z

Location where the ambient temperature is out of the following range:
In transportation and In storage 0 to 50°C
(with no water or circulating fluid in piping)
In operation 5 to 40°C (Option G [High temperature
type]:5 to 45°C)

z

Location where the ambient humidity is out of the following range or where
condensation occurs:
In transportation and storage 15 to 85%
In operation 30 to 70%

z

Location that is exposed to direct sunlight or heat radiation.

z

Location that is near heat sources and poor in ventilation.

z

Location that is subjected to abrupt changes in temperature.

z

Location that is subjected to strong electromagnetic noise (intense electric
field, intense magnetic field, or surges).

z

Location that is subjected to static electricity, or conditions where static
electricity can discharge to the product.

z

Location that is subjected to strong high frequencies raditation
(microwaves).

z

Location that is subjected to potential lightning srtike.

z

Location at altitudes of 1000m or higher (except for product storage and
transport).

z

Location where the product is affected by strong vibrations or impacts.

z

Condition that applies external force or weight causing the product to be
damaged.

z

Location without adequate space for maintenance as required.

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.2 Installation

3-5

3.2.2 Location (Required ventilation rate and facility water source)

 Installation of multiple products

Keep sufficient space between products so that the air vented from one product will not be taken
in by other products.

 Installation Area Ventilation (For air-cooled type)

① Facility having a large installation area (that can vent the air naturally)

Make an air vent on a wall at a high level and another air vent on a wall at a low level, to
allow for adequate airflow.

②

Facility having a small installation area (that can not vent the air naturally)
Make a forced air exhaust vent on a wall at a high level and an air vent on a wall at a low

level.

Table 3-1 Amount of radiation and required ventilation

Required ventilation amount m3/min

Model

Heat

Radiated

kW

Differential temp. of 3 oC

between inside and outside

of installation area

Differential temp. of 6 oC

between inside and outside

of installation area

HRS012-A∗-∗

Approx. 2

40 20

HRS018-A∗-∗

Approx. 4

70 40

HRS024-A∗-20

Approx. 5

90 50

 Facility water source to be prepared (For water-cooled type)

Table 3-2 Facility water source to be prepared

Required facility water rate

l/min

Facility water temprature

Model

Heat

Radiated

kW

Facility water temp.

range

o

C

25℃ 32℃ 40℃

HRS012-W-20 Approx. 2

8 12 20

HRS018-W-20 Approx. 4

12 15 23

HRS024-W-20 Approx. 5

5to40

(Rating 25)

14 17 25

Do not install in a location which can be subjected to any of the

conditions in 3.2.1 Environment.

The product radiates heat from the air vent of the cooling fan.
If the product is operated with insufficient air ventilation the internal
temperature can exceed 40

oC∗

, which can cause an overload or affect
the performance and life of the product. To prevent this ensure that
suitable ventilation is available (see below).
∗ (Option G [High temperature type]:45°C)

The water-refrigerated thermo-cooler discharges heat by using facility
water. Therefore, it is necessary to supply facility water from the
source listed in the following table.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.2 Installation HRS Series

3-6

3.2.3 Installation and Maintenance Space

It is recommended to keep the space around the product shown in

Fig. 3-2.

For maintenance, move the thermo-chiller into a space where maintenance
work is possible.

Fig. 3-2 Installation space

The temperature of the outlet of for the ventilation of the thermo-chiller
and the panel surface may become approx. 50

o

C or higher. When

placing the thermo-chiller, ensure the thermo-chiller does not affect
surrounding environment.

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.3 Installation

3-7

3.3 Installation

3.3.1 Mounting

z

Mount the product on a flat and stable floor with no vibrations.

z

Refer to’’8.2 Outline dimensions’’ for dimensional information of the

product.

 How to mount the product

1. Move the product to the installation area.

2. After moving, lock the front casters again.

Fig. 3-3 Installation procedures

 〈Fixture〉

Follow the procedure below when fixing the thermo-chiller to the floor or the mounting frame.

1. Prepare the fixing bracket shown below (Not included in the package).

Item

Part number

Anti-seismic brackets HRS-TK001

2. Use M8 foundation bolts to fix the product within the dimensions below.

Fig. 3-4 Anti-seismic brackets installing

∗4 (four) M8 foundation bolts should be prepared by the customer.

Lock

240
335

555

590

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.3 Installation HRS Series

3-8

3.3.2 Electrical wiring

 Power supply cable and Earth Leakage Breaker

Prepare the power supply shown in the following table. For the connection
between the product and power supply, use the power supply cable and
earth leakage breaker shown below.
If communication with the user’s machine is necessary, use the following
signal cable.

Table 3-3 Power supply cable and Earth Leakage Breaker（Recommended）

Recommended earth

leakage breaker

Model

Power supply

voltage

Cable

qty.

x size

Rated

voltage

[V]

Rated

current

[A]

Sensitivity

of leak

current [mA]

HRS012-∗∗-10
HRS018-∗∗-10

1-phase

100V AC(50Hz)

1-phase

100V to 115V

AC(60Hz)

100
200

Sharing

15 15 or 30

HRS012-∗∗-20
HRS018-∗∗-20

HRS024-∗∗-20

10 30

HRS0∗∗-∗∗-20-∗∗T

(High pump head

[Optional])

1-phase

200-230V AC

(50/60Hz)

3 cores x

14AWG

（3 cores x

2.0mm

2

）

(including

ground)

200,

230

15 30

Only qualified persons are allowed to wire the product.
Be sure to shut off the user’s power supply. Wiring with the product

energized is strictly prohibitted.

The wiring must be conducted using cables complying with “Table

3-3” firmly and secured to the product to prevent the external force
of cables being applied to the terminals. Incomplete wiring or
improper securing of wiring may cause electrical shock, excessive

heat and fire.
Ensure a stable power supply with no voltage surges.
Ensure that an Earth Leakage Breaker is used in the power supply of

the product. See “Table 3-3”.
Use a power supply suitable for the specifications of the product.
Be sure to connect the ground connection.
Ensure that a lock out facility is availble on the power supply.
Each product must have its own separate Earth Leakage Breaker.

Otherwise there can be a risk of electric shock or fire.

Do not modify the intenal electrical wiring of the product. Incorrect

wiring may cause electrical shock or fire. Also, modifing the

internal wiring will void the product’s warranty.
Do not connect the ground to water line, gas pipe or lightening

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.3 Installation

3-9

3.3.3 Preparation and wiring of power supply cable

 Preparation

1. Strip the sheath from both ends of the cable.

2. Disassemble the power supply connector. Attach crimp terminals (mounting screw dia.:

M3.5) to one end of the cable to crimp them to L, N, E inside of the connector, then
reassemble the power supply connector.

3. Connect the other end of the cable to a terminal (e.g. crimped terminal) that is

compatible to the secondary side of the earth leakage breaker.

Fig. 3-5 Power supply cable

Cable

Crimped terminal
(Prepared by customer)

[Accessory]
Power supply

connector

N

E (Earth)

L

L

E

N

Earth leakage
breaker
(Secondary side)

Crimp terminal 3pcs. Terminal screw is M3.5.
Prepare the crimp terminal which is suitable for the cable
diameter.

The electrical facilities should be installed and wired in accordance

with local laws and regulations of each country and by a person
who has knowledge and experience.

Check the power supply. Operation with voltages, capacities and

frequencies other than the specified values can cause fire and
electrical shock.

Wire with an applicable cable size and terminal. Forcibly mounting

with an unsuitable size cable may result in heat generation or fire

Plug
(Prepared by customer)

L

E

N

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.3 Installation HRS Series

3-10



Wiring

1. Connect the power supply cable to the secondary side of the earth leakage breaker and

grounding.

2. Plug the power supply cable in to the power cable connector on the product.

Fig. 3-6 Wiring of power supply

L

N

E

Earth

Power cable hole

Earth leakage

breaker

E

Grounded socket

Power supply connector

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.3 Installation

3-11

3.3.4 Wiring of remote operation signal input

The remote signal input is to enable the product to be run and stopped
remotely by applying a contact signal input. This chapter illustrates
examples of wiring

Select DIO mode as the communication mode to activate the remote control
signal input. After wiring, select DIO mode referring to the Communications
Operation manual.

【Tips】

This product has two input signals. These can be customized depending on
the customer’s application.
Refer to the Operation Manual for communication for details.

1. For operation using remote signal, prepare the switch (source voltage: 24V, contact

capacity: 35mA or more, min. load current: 5mA), and cable (dia. 0.14 to 1.5mm2).

2. Connect the remote control cable and the switch to the connector for the contact

input/output, supplied as an accessory. Then, mount the ferrite core (3 turn) supplied as
an accessory. (See below) (This is an example of wiring. Refer to the Operation Manual
for communication for details.)

Fig. 3-7 Wiring of contact for remote signal inputs（Example）

Terminal no.1

Terminal no.12

Switch

Recommended
accessory cable dia. is

0.14 to 1.5mm2

9

〃

12
11
10

Terminal no.

〃
〃

The capacity of the output contact of the product is limited. If the capacity is not
large enough, install a relay, etc. (to allow for larger capacity). At the same time,
ensure the input current of the relay is small enough in relation to the contact
capacity of the product.

Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.3 Installation HRS Series

3-12

3. Plug the prepared connector in to the contact input/output connector that is on the back

of the thermo-chiller.

Fig. 3-8 Connecting the Remote control signal cable

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.3 Installation

3-13

3.3.5 Wiring of operation signal output and alarm signal output

The operation signal output and alarm signal output are the outputs
generated by a contact signal to shown the status of the product.

The specifications of the contact for each signal output are as follows.

Table 3-4 Signal output contact spec. at the time of shipment

Contact output

Signal explanation

(Default setting)

Operation

At run：

Contact closed

At stop：

Contact open

Output current 1
（Terminal no.5,6）

Run status signal A

With power supply

shut off：

Contact open

At remote：

Contact closed

At non remote：

Contact open

Output current 2
（Terminal no.3,4）

Remote signal A

With power supply

shut off：

Contact open

At generation：

Contact open

Not generated：

Contact closed

Output current 3
（Terminal no.1,2）

Alarm signal B

With power supply

shut off：

Contact open

【Tips】

This product has three output signals which can be customized depending on
the customer’s application

Signals below can be output. Refer to the Communications Operation Manual
for more details.

・Signal for completion of preparation (TEMP READY)

・Signal for operation stop alarm

・Signal for continuing operation alarm

・Signal for selection alarm

・Signal for operation start timer setting

・Signal for operation stop timer setting

・Signal for power recovery setting

・Signal for freezing prevention setting

・Contact input signal detection

Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.3 Installation HRS Series

3-14

3.3.6 RS-485 Communication wiring

Serial communication RS-485, operation start/stop, setting and reading of
circulating fluid temperature, and reading of alarm condition can be done by
remote control.

Refer to the Communications Operation Manual for more details.

 Wiring of interface communication cable

z Connecting to PC

RS-485 cannot be directly connected to a normal PC. Use a RS-232C/RS485 converter which is
available on the market.

Be sure to follow the wiring procedure below for connecting multiple thermo-chillers.

z

Configuration of connection
One host computer : One thermo-chiller, or one host computer : N thermo-chillers.
(Max. 31 thermo-chillers can be connected.)

1

SD+

5

SG

9

SD-

SD+

SD- SG

Terminal

resistance

Master This product

(first slave)

1

SD+

5

SG

9

SD-

This product

（second slave）

1

SD+

5

SG

9

SD-

This product

（31

st

slaves）

Terminal

resistance120Ω

Fig. 3-9 Connection of RS-485

【Tips】

Both ends of the communication connection (the end nodes) need to be
connected to the host computer.

The terminal resistance of this product can be set by the operation display
panel. Refer to “5.18 Communication function”.

Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.3 Installation

3-15

3.3.7 RS-232C Communication wiring

Serial communication RS-232C, operation start/stop, setting and reading of
circulating fluid temperature, and reading of alarm condition can be done by
remote control.

Refer to the Communications Operation Manual for more details.

 Wiring of communication cable

Be sure to wire as shown in the figure below.

z

Configuration
1 master : 1 thermo-chiller

2

3

5

RD

SD

SG

2

3

5

RD

SD

SG

Master This product

Fig. 3-10 Connection of RS-232C

Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.4 Piping HRS Series

3-16

3.4 Piping

 Piping port size

Table 3-5 Piping port size

Name Port size*1

Recommended

tightening torque

Recommended proof

pressure for piping

Circulating fluid supply Rc1/2

28 to 30N･m

0.4MPa more

Circulating fluid return Rc1/2

28 to 30N･m

0.4MPa more

Faiclity water inlet*2 Rc3/8

22 to 24N･m

Faiclity water outlet*2 Rc3/8

22 to 24N･m

1.0MPa more

(Facility water pressure 0.3 to

0.5 MPa)

Automatic water-fill port *3

Rc3/8 22 to 24N･m

1.0MPa more

（Automatic water-fill pressure

0.2 to 0.5MPa）

Overflow port *3

Rc3/4 28 to 30N・m

Inside diameter 19mm more of
piping

∗1 For NPT and G thread, use a conversion connector available as an accessory separately.
∗2 For water-cooled type.
∗3 For automatic fluid filling [Option]

Connect piping firmly. Incorrect piping might cause leakage of

supplied or drained leakage and wet surrounding area and facility.
Keep supply water pressure below 0.5MPa.
Pay attention not to allow dust and foreign materials to enter into

water circuit etc. during connection of piping.
When the thermo-chiller is water-cooled refrigerated type, the

temperature of the outlet of the facility water may become approx.

60℃ depending on operating conditions
Hold the piping port firmly with specific wrench when tightening.
The piping should be selected with due consideraton of pressure and

temperature. Otherwise, the piping can burst in service.

Check the model number of this product in "1.4.1 Product Label” of

this manual before connecting piping.
Model number: HRS0∗∗-∗N-∗0

The transition connector from Rc to NPT is enclosed as an

accessory.

For NPT piping, be sure to use this connector.
Model number: HRS0∗∗-∗F-∗0

The transition connector from Rc to G is enclosed as an accessory.

For G piping, be sure to use this connector.

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.4 Piping

3-17

 How to connect piping

Tighten the piping to circulating fluid outlet / return port and facility water outlet / inlet.

Fig. 3-11 Tightening of piping

 Recommended piping circuit

Fig. 3-12 Recommended piping circuit

No. Name Size

1 Valve Rc1/2
2 Y-shaped strainer or filter Rc1/2 (#1000) Rc1/2 (50μm)
3 Pressure gauge 0 to 50 L/min
4 Pressure gauge 0 to 1.0 MPa
5 Others (Pipe, hose, etc.) I.Dφ15more

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.5 Fill of circulating fluid HRS Series

3-18

3.5 Fill of circulating fluid

Turn the tank lid anticlockwise to open. Supply the circulating fluid up to the
“H” mark on the fluid level indicator. Use tap water which satisfies the water
quality standard shown inTable 7-1, or a 15% aqueous solution of ethylene
glycol.

Fig. 3-13

Circulating fluid fill

 15% aqueous solution of ethylene glycol

When a 15% aqueous solution of ethylene glycol is used, prepare the ethylene glycol aqueous
solution separately.
To control the concentration of the ethylene glycol aqueous solution, a concentration meter is available
separately from SMC.

Item No Remarks

Ethylene glycol aqueous solution 60% HRZ-BR001

Please dilute to 15% with tap
water and use it.

Densitometer HRZ-BR002

－

Tank lid

Circulating fluid fill

Liquid level

z Check the drain port is plugged or closed by the valve to prevent the

supplied circulating fluid from draining out.

z Supply the circulating fluid up to the “H” mark on the tank.

Operation will stop when the fulid level falls lower than “L”.

When the temperature of the circulating fluid is set to lower than 10oC,

use a 15% aqueous solution of ethylene glycol. Tap water may
freeze in the thermo-chiller, leading to malfunction.

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.6 Option J Piping of【Automatic fluid filling】

3-19

3.6 Option J Piping of【Automatic fluid filling】

Automatic fluid filling port and over flow port need to be connected when
optional [automatic fluid filling] is selected.

 Piping to automatic fluid filling port

Connect the piping to supply the circulating fluid. Automatic fluid filling is performed by using
the solenoid valve which is built in the thermo-chiller.

 Piping to the overflow port

This is necessary when automatic fluid filling function is used. Discharge excess circulating
fluid when the fluid level in the tank rises due to the failure of the solenoid valve etc.

Piping name Port size Piping specifications

Automatic water-fill inlet Rc3/8

Supply pressure：0.2 to 0.5MPa

Overflow outlet Rc3/4

Piping should be within f19 of I.D. and 5m of
length. Riser piping (trapping area) should be
avoided.

Fig. 3-14 Piping to automatic fluid filling port and overflow port

 Supplying fluid from the automatic fluid filling port

Fluid filling starts if the power supply switch is turned ON when the fluid level of the
circulating fluid is “L” of the level indicator or lower (P XX). Fluid supply stops when the fluid
level reaches the proper level. If the fluid level does not reach the proper level in an hour
after starting supplying fluid, it causes the alarm “AL01; Low level in tank". Fluid supply
continues while the alarm is generated. Fluid supply stops after the fluid level reaching
proper level. Alarm continues after fluid supply is completed. Release the alarm referring
Chapter 6.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.7 Wiring of external switch HRS Series

3-20

3.7 Wiring of external switch

This product can be monitored by sampling the signal of the external switch
prepared by the customer.

Table 3-6 Power supply, contact specifications

Name Terminal NO. Specification

12(DC 24V)

Power supply output

11(24V COM)

DC 24V ±10% 0.5A MAX

∗

1

10(Contact input signal 1)

Contact input signal
1

9(Common of contact output

signal 1)

8(Contact input signal 2)

Contact input signal
2

7(Common of contact output

signal 2)

NPN open collector output
PNP open collector output

*1：To use the power of the device, the total load current must be 500mA or less.

If the load is 500mA or more, the internal fuse will be cut to protect the product and the alarm [AL21 DC
line fuse cut] will be generated. Refer to Chapter 6 for handling of alarms.

One external switch can be connected to contact input signal 1 and one to
contact input signal 2. (Two in total) The external switch cannot be
connected to the contact input signal 1 depending on the communication
mode. Table 3-7 shows the setting.

Table 3-7 Sets external switch

Communication mode ∗1

Contact input signal 1 Contact input signal 2

Local mode

○ ○

MODBUS

○ ○

Simple
communication
protocol 1

○ ○

SERIAL mode

Simple
communication
protocol 2

× ○

DIO mode

× ○

*1：Refer to the Communications Operation Manual for more details of each mode.

Local mode: Mode allowing the product to be operated by the operation panel. (Default setting)
SERIAL mode: Mode allowing the product to be operated by serial communication.
DIO mode: Mode allowing the product to be operated by the contact input/output communication.

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.7 Wiring of external switch

3-21

3.7.1 Reading of the External switch

This product can be monitored during operation by reading the signal of the
external switch prepared by the customer.

The product stops monitoring when it stops operation.
This product generates an alarm and stops operating when a problem is

detected from the external switch.
You can set the product to continue operation or not to detect the alarm.

Run status of this product

Run

Stop

External switch

CLOSE

OPEN

Operation start

Signal reading

start

Delay timer of reading

OFF detection timer

Alarm

generation

Operation
stops due to
the alarm.

Fig 3-15 Timing chart of external switch monitoring

■Delay timer of reading

If the signal of the external switch prepared by the customer is not closed instantly when the
product is operated, set the delay timer for reading. By setting this timer, the external switch
monitoring starts after the time set by the delay time of reading since the operation start.

“0" is the default setting. Set a time which is suitable for your environment.

Example} When using a flow switch

When operation is started, it takes time for the fluid to reach the piping and the flow

switch to detect the flow. Set the time for the flow switch to start.

■OFF detection timer

If you do not want the alarm to be generated instantly when the external switch prepared by the
customer is in open status, but instead want the alarm to be generated after the switch has been
open for a specific time (continuous open status), set the OFF detection timer.

This timer enables the alarm to be generated when the time set for OFF detection time passes
after the switch is in OPEN status.

The default setting is 0 sec. Set a time which is suitable for your application.

■Contact input

N.O type or N.C. type can be selected for the external switch. Set the signal which is suitable for
the external switch prepared by the customer.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.7 Wiring of external switch HRS Series

3-22

Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.

3.7.2 Wiring

As an example of connection of an external switch, the
connecting method is shown below using the SMC flow switch
(NPN, PNP).
This chapter illustrates examples of wiring

Table3-8 External switches used in examples

Name Manufacturer Part NO. Out put type

Current

consumption

PF2W7□□-□□-27□(-M) NPN open collector output 70mA or less

Flow switch SMC

PF2W7□□-□□-67□(-M) PNP open collector output 70mA or less

1. Prepare the external switch

2. Depending on the external switch output type, wire the switch to the communication

connector for contact input / output (which is included as an accessory) as shown below.
Mount the ferrite core (3 turns), which is included as an accessory. This is an example of
wiringRefer to the Communications Operation Manual for more details.

NPN open collector output

Fig 3-16 Wiring of the external switch (NPN open collector output) (example)

PNP open collector output

Fig 3-17 Wire the communication cable to the connector included as an accessory.

Brown (DC 24V)

Brown (DC 24V)

Blue
(DC COM)

Black
(Output

１)

Flow switch

Blue
(DC COM)

Black
(Output

１)

Flow switch

Terminal NO.1

Terminal NO.12

Wire the
communication
cable to the
connector included
as an accessory.

Terminal NO.1

Terminal NO.12

Wire the
communication
cable to the
connector included
as an accessory.

HRX-OM-M090

Chapter 3 Transport and Setting Up

HRS Series 3.7 Wiring of external switch

3-23

3. Plug the prepared connector in to the contact input/output connector that is on the back

of the thermo-chiller.

Fig 3-18 Connecting the connector

3.7.3 Setting items

Table 3-9 shows the setting items of the external switch. For details, refer to

5.18 Communication function.

Table 3-9 Setting list of the external switch

Displa

y

Item

Initial value

(Default setting)

Example

∗

Reference

page

Category

Communication mode LOC LOC

Contact input signal 1 RUN SW_A
Contact input signal 1 type ALT ALT
Contact input signal 1
delay
timer (time delay) of
reading

0 0

Contact input signal 1 OFF
detection timer

0 2

Contact input signal 2 OFF OFF
Contact input signal 2 type ALT ­Contact input signal 2
delay
timer (time delay) of
reading

0 -

Contact input/output communication

Contact input signal 2 OFF
detection timer

0 -

5.18

Communication
setting menu

∗ Example: Connect flow switch A to contact input signal 1 in local mode.

HRX-OM-M090

Chapter 3 Transport and Setting Up

3.7 Wiring of external switch HRS Series

3-24

HRX-OM-M090

Chapter 4 Starting the Product

HRS Series 4.1 Before Starting

4-1

Chapter 4 Starting the Product

4.1 Before Starting

Check the following items before starting the product.

 Installation conditions

z

Check the product is installed horizontally.

z

Check that there are no heavy objects on the product, and the external
piping is not applying excessive force to the product.

 Connection of cables

z

Check the power, ground and communications (optional) cables are

correctly connected.

 Circulating fluid

z

Check proper connection of piping at inlet and outlet.

 Facility water piping (For water-cooled type)

z

Check proper connection of piping at the facility water inlet and outlet.

z

Check that the facility water source is in operation.

z

Check that the facility water circuit is not shut off by valves

[Tips]

The product is equipped with a water regulator, which does not allow the
facility water to flow unless the product is started.

 Automatic fluid filling piping (When option J [With automatic fluid filling] is

selected

z

Confirm that the automatic fluid filling port piping is connected properly.

 Over flow port piping (When option J [With automatic filling] is selected).

z

This is necessary when automatic fluid filling function is used.

 Fluid level indicator (for tank)

z

Ensure that the fluid level is on “H”.

Only people who have sufficient knowledge and experience about the
product and its accessories are allowed to start and stop the product.

The facility water should be checked for whether or not it satisfies the
water quality standard described in “7.1 Control of Circulating Fluid
Qualit

y

” and requirements specified in “8.1 Specifications List”.

HRX-OM-M090

Chapter 4 Starting the Product

4.2 Preparation for Start HRS Series

4-2

Press

4.2 Preparation for Start

4.2.1 Power supply

Supply the power and turn on the power supply switch.
When the product is switched on, the operation panel displays the following

conditions.

z

The initial screen (HELLO screen) is displayed for 8 seconds on the operation
display panel. Then, the display changes to the main screen which displays
the circulating fluid outlet temperature.

z

The set value of circulating fluid temperature is displayed as SV on the panel.

z

The present value of circulating fluid temperature is displayed as PV on the

panel.

Fig. 4-1 Power supply

4.2.2 Setting of circulating fluid temperature

Press the [▼] and [▲] buttons on the operational panel to change the SV to
required value.

When the temperature of the circulating fluid is set by the communication,
refer to "Communication” in the supplementary operation manual.

Fig. 4-2 Setting of circulating fluid temperature

HRX-OM-M090

Chapter 4 Starting the Product

HRS Series 4.3 Preparation of circulating fluid

4-3

4.3 Preparation of circulating fluid

When the circulating fluid tank is filled the user’s machine and piping remains
empty. In that condition, the circulating fluid flows out to the user’s machine
and piping and the tank level decreases and may require a refill. In that case,
refill the circulating fluid in the following procedure.

1. Press the [PUMP] key on the operation display panel (press the [RUN/STOP] key and

[MENU] key simultaneously).
The pump operates independently while the [PUMP] key is pressed. The [RUN] lamp

(green) flashes while the pump is operating independently, and the circulating fluid in
the tank is supplied to the customer’s device and piping. This can be done to check for
leakage, and to discharge air from the piping. If the fluid level in the tank reaches the
lower limit, a buzzer will sound, and alarm no. “AL01 (tank fluid level is low)” is
displayed on the digital display PV. The [ALARM] lamp (red) flashes, the [ ] lamp
turns on, and the independent operation of the pump is stopped.

Fig. 4-3 Manual operation of the pump

Fig. 4-4 Low tank level alarm

Flash

Press to

g

ether

Flash

ON

If leakage occurs due to faulty piping including an opened fitting of eternal piping,

stop manual operation of the pump and fix the leak.

HRX-OM-M090

Chapter 4 Starting the Product

4.3 Preparation of circulating fluid HRS Series

4-4

2. Press the [RESET] key ([▼] and [▲] keys simultaneously) to stop the alarm buzzer.

Fig. 4-5 Alarm receipt

3. Open the tank lid and supply the circulating fluid up to the “H” mark on the tank.

Fig. 4-6 Filling of Circulating Fluid

Flash

Press together

Tank lid

Filling of Circulating Fluid

Liquid

ON

Be sure to reset the alarm on the operation display panel of the alarm. Alarm reset
is not accepted from any screen except the alarm display menu. Refer to 5.1.1 Key
operations.

Supply the circulating fluid up to the “H” mark on the tank.
Operation will stop when the fluid level falls lower than “L”.

HRX-OM-M090

Chapter 4 Starting the Product

HRS Series 4.3 Preparation of circulating fluid

4-5

4. Press the [RESET] key ([▼] and [▲] keys simultaneously) to reset the alarm.

The alarm (tank fluid level is low) is reset, and the [ALARM] lamp and [ ] lamp are
turned off. The display returns to the initial screen of the main menu: “Circulating fluid
temp. / Circulating fluid set temp.” Press the [PUMP] key (press [RUN/STOP] key and
[MENU] key simultaneously) to start independent operation of the pump.

Fig. 4-7 Alarm release

5. Repeat steps 1 to 4 to supply the circulating fluid to the customer’s device and piping.

The tank level must be “H” on the tank liquid level indicator

Press together

OFF

OFF

Be sure to reset the alarm on the operation display panel of the alarm. Alarm reset
is not accepted from any screen except the alarm display menu. Refer to 5.1.1 Key
operations.

HRX-OM-M090

Chapter 4 Starting the Product

4.4 Starting and Stopping HRS Series

4-6

4.4 Starting and Stopping

4.4.1 Starting the product

Before starting, check the items specified in “4.1 Before Starting”
If any alarm lamp remains on, refer to Chapter 6 Alarm indication and

trouble shooting”

1. Press the [RUN/STOP] key on the operation panel.

The [RUN] lamp lights up (in green) and the product starts running. The circulating
discharge temperature (PV) is controlled to the set temperature (SV).

Fig. 4-8 Starting the product

ON

Press

When an alarm occurs Refer to “Chapter 6 Alarm indication and trouble
shooting’’

Allow at least five minutes before restarting the product.

HRX-OM-M090

Chapter 4 Starting the Product

HRS Series 4.4 Starting and Stopping

4-7

Except in case of emergency, do not turn off the power supply switch
until the product has stopped completely. Doing so could cause
failure.

4.4.2 Stopping the product

1. Press the [RUN/STOP] button on the operation panel.

The [RUN] lamp on the operation panel flashes green at 1 second intervals, and

continues operation to prepare to stop. After approx. 15 seconds, the [RUN] lamp goes

off and the product stops.

Fig. 4-9 Stopping the product

2. Turn off the power supply switch.

All LEDs go off.

Flash

OFF

Press

Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.
Also, drain the circulating fluid, etc. from the product in accordance
with and put into storage properly

(

Referring to "7.4.1 Dischargeofthe circulating fluid".)

HRX-OM-M090

Chapter 4 Starting the Product

4.5 Check items after starting HRS Series

4-8

If the valve locates in circulating piping, do not fully close the valve
(0L/min). The pump may be damaged.

4.5 Check items after starting

Check the following items after starting the product.

z

There is no leakage from piping.

z

There is no drain of circulating fluid from the tank drain port.

z

The circulating fluid pressure is within the specified range.

z

The tank level is within the specified range.

4.6 Adjustment of Circulating Fluid

 Flow adjustment

If the flow rate is less than 7L/min it will not be able to achieve the specified
cooling capacity. The adjustment of flow rate should be performed using a
manual bypass valve and monitoring the pressure or flow rate in the
customer’s device, referring to the recommended piping flow shown in
Figure 3-12, until they reach the required value.

When an Alarm is seen, press the [STOP] button and then turn off the
power supply switch to stop the product, and turn off the breaker of
the user’s power supply to isolate the product.

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 4.6 Adjustment of Circulating Fluid

5-1

Chapter 5 Display and setting of

various functions

The product can have the displays and settings shown in table 5-1.

Table 5-1 List of function

NO Function Outline

Reference

page

1 Main display

Displays the current temperature of the circulating fluid, discharge pressure of
the circulating fluidhange the circulating fluid temperature.

5.2

2

Alarm display
menu

Indicates alarm number when an alarm occurs.

5.3

3

Inspection
monitor menu

Product temperature, pressure and accumulated operating time can be
checked as daily inspection. Use these for daily inspection.

5.4

4 Key-lock

Keys can be locked so that set values cannot be changed by operator error.

5.5

5

Timer for
operation start
/stop

Timer is used to set the operation start/stop.

5.6

6

Signal for the
completion of
preparation

A signal is output when the circulating fluid temperature reaches the set
temperature, when using contact input/output and serial communication.

5.7

7 Offset function

Use this function when there is a temperature offset between the discharge
temperature of the thermo-chiller and the customer’s device.

5.8

8

Reset after
power failure

Start operation automatically after the power supply is turned on.

5.9

9

Anti-freezing
function

Circulating fluid is protected from freezing during winter time or night time.
Set beforehand if there is a risk of freezing.

5.10

10

Key click sound
setting

Operation panel key sound can be set on/off.

5.11

11

Changing temp.
unit

Temperature unit can be changed.
Centigrade(

o

C) ⇔ Fahrenheit(oF)

5.12

12

Changing
pressure unit

Pressure unit can be changed.
MPa

⇔

PSI

5.13

13

Setting of alarm
buzzer

Alarm sound can be set to on/off.

5.14

14

Alarm
customizing

Operation during alarm condition and threshold values can be changed
depending on the alarm type.

5.15

15 Data reset

Functions can be reset to the default settings (settings when shipped from the
factory).

5.16

16

Accumulation
time reset

Reset function when the pump, the fan, or the compressor is replaced.
Accumulated time is reset.

5.17

17 Communication

This function is used for contact input/output or serial communication.

5.18

18

Option

J

[Automatic
water-fill port ]

This function is available for customer who selected option [Automatic fluid
filling] (Refer to P2-1 Name and Function of Parts)

5.19

19

Option
[Drain pan set]

This function is available for customer who purchased drain pan set (part no.:
HRS-WL001).

5.20

20

Option
[Electric
resistivity
sensor set]

This function is available for customer who purchased the electric resistivity
sensor set (part no.: HRS-Dl001).

5.21

Read and understand this manual carefully before changing the
settings.

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.1 Function HRS Series

5-2

5.1 Function

5.1.1 Key operations

Fig. 5.1-1 “Key operation (1/2)” and
Fig. 5.1-2 “Key operation (2/2)” show the operation of keys of the

thermo-chiller.

MENU

PV

SV

Circulating
fluid outlet
temperature
Circulating
fluid set
temperature

Circulating
fluid outlet
pressure

Main display

Circulating
fluid outlet
temperature

Circulating
fluid return
port

Check monitor

menu

Temperature
of the
compressor
inlet.

PV

SV

PV

SV

PV

SV

PV

SV

Circulating
fluid outlet
pressure

PV

SV

Pressure of
higher
pressure
refrigerant
circuit

PV

SV

Pressure of
lower
pressure
refrigerant
circuit

Accumulated
operation
time of the
pump

Accumulated
operation
time of the
fun motor

Accumulated
operation
time of the
compressor

Accumulated
operation
time

PV

SV

PV

SV

PV

SV

PV

SV

Key-lock

Run timer

Setting menu

Stop timer

READY mode

READY
band width

READY time

Offset mode

Offset
temperature

Recover
from power
failure

Anti-freezing

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

Data reset

Pump
accumulated
operating
time reset

Fun motor
accumulated
operating
time reset

Compressor
accumulated
operating
time reset

Key click sound

Temperature
unit

Pressure unit

PV

SV

PV

SV

PV

SV

Alarm
（The latest）

Alarm

Alarm display menu

Alarm

（The oldest）

PV

SV

PV

SV

PV

SV

Note) It changes only when the
alarm is generated.

PV

SV

PV

SV

PV

SV

PV

SV

Power supply ON

PV

SV

Press the
2 sec.

PV

SV

Electric
resistivity

PV

SV

SEL

Option
【drain pan set】

PV

SV

PV

SV

Electric
resistivity

Option
【electric
resistivity sensor
set】

SEL

Unused

PV

SV

Unused

Unused

PV

SV

PV

SV

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

MENU

MENU

Press the
2 sec.

MENU

Press the
2 sec.

MENUMENU

Unused

PV

SV

SEL

Fig. 5.1-1 Key operation (1/2)

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.1 Function

5-3

MENU

Changing of
contact input 1
signal
detection

Alarm
buzzer
sound

Changing of
low tank
level

Changing of
circulating fluid
discharge
temperature rise

Detection
temperature for
circulating fluid
discharge
temperature rise

Changing of
circulating fluid
discharge
temperature drop

Detection
temperature for
circulating fluid
discharge
temperature drop

Changing of
circulating fluid
discharge pressure
rise

Detection pressure
for circulating fluid
discharge pressure
rise

Changing of
communicati
on error

The monitoring
time of
communication
error

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

Changing of
circulating fluid
discharge pressure
drop

Detection pressure
for circulating fluid
discharge pressure
drop

PV

SV

PV

SV

PV

SV

PV

SV

Changing of
contact input 2
signal
detection

PV

SV

PV

SV

Changing of
DI level rise

Upper limit
of DI level
rise

Changing of
DC line fuse
cut

Changing of
water
leakage

PV

SV

PV

SV

PV

SV

Lower limit
of DI level
drop

Changing of
DI level drop

PV

SV

PV

SV

PV

SV

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

Press the
2 sec.

MENU

Alarm setting

menu

MENU

Communicati
on mode

Serial
protocol

Communication
specifications

RS-485
terminal

Slave
address
（MODBUS）

Communicati
on　speed
（MODBUS）

Slave address
（Simple
communicatio
n protocol）

Communication
speed
（Simple
communication
protocol）

Response
delay time
（Simple
communication
protocol）

Communicati
on　range
（Simple
communicati
on protocol）

MENU

BCC
（Simple
communicatio
n protocol）

Data length
（Simple
communicati
on protocol）

Parity check
（Simple
communicati
on protocol）

Stop bit length
（Simple
communicatio
n protocol）

Digital input
signal 1

Digital input
signal 1 type

Digital input
signal 2

Digital input
signal 2 type

Digital output
1 function

Digital output
1 operation

Digital output
1 selected
alarm

Digital output
2 function

Digital output
3 selected
alarm

Digital output
2 operation

Digital output
2 selected
alarm

Digital output
3 function

Digital output
3 operation

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

PV

SV

SV

Press the
2 sec.

Contact input
signal 1 Delay
timer (time
delay) of
reading

Contact input
signal 2 OFF
Detection
timer

PV

SV

PV

SV

Contact input
signal 2
Delay timer
(time delay)
of reading

Contact input
signal 2 OFF
Detection
timer

PV

SV

PV

SV

Communication

setting menu

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

SEL

PV

Temperature
alarm
Monitoring
method

PV

SV

PV

SV

Monitoring
start timer

PV

SV

Range over
Detection timer

SEL

SEL

SEL

SEL

Fig. 5.1-2 Key operation (2/2)

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.1 Function HRS Series

5-4

5.1.2 List of parameters

Table 5.1-1“List of parameter (1/3)” and Table 5.1-3“List of parameter (3/3)”
show the parameters of the thermo-chiller.

Table 5.1-1 List of parameter (1/3)

Display Item

Initial value

(Default setting)

Reference

page

Category

Circulating fluid temperature
(TEMP PV)

Temperature

Circulating fluid set temperature (TEMP
SV)

20℃(68 ﾟ F)

Circulating fluid outlet pressure
Electric resistivity

5.2

Main display

X X

Alarm no.

5.3

Alarm
display
menu

Circulating fluid outlet temperature
Circulating fluid return port temperature
Temperature of the compressor inlet.

Circulating fluid outlet pressure
Pressure of higher pressure refrigerant

circuit
Pressure of lower pressure refrigerant
circuit
Electric resistivity

Accumulated operation time of the pump
Accumulated operation time of the fun

motor
Accumulated operation time of the
compressor

Accumulated operation time

5.4

Check
monitor
menu

Key-lock OFF 5.5
Run timer 0.0H
Stop timer 0.0H

5.6

READY mode OFF
READY band width 0.0℃(0.0 ﾟ F)
READY time 10 sec

5.7

Offset mode OFF
Offset temperature 0.0℃(0.0 ﾟ F)

5.8

Recover from power failure OFF 5.9
Anti-freezing OFF 5.10
Key click sound ON 5.11
Temperature unit C 5.12
Pressure unit MPa 5.13
Data reset NO 5.16
Pump accumulated operating time reset

NO
Fun motor accumulated operating time
reset

NO
Compressor accumulated operating

time reset

NO

5.17

Option【Drain pan set】

OFF 5.20
Option【Electric resistivity sensor set】

OFF 5.21
Unused

- -

Unused

- -

Unused

- -

Unused

- -

Setting
menu

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.1 Function

5-5

Table 5.1-2 List of parameter (2/3)

Display Item

Initial value

(Default setting)

Reference

page

Category

Alarm buzzer sound ON 5.14
Changing of low tank level A.STP
Changing of circulating fluid discharge

temperature rise

A.RUN

Detection temperature for circulating
fluid discharge temperature rise

45.0℃(113.0 ﾟ F)

Changing of circulating fluid discharge
temperature drop

A.RUN

Detection temperature for circulating
fluid discharge temperature drop

1.0℃(33.8 ﾟ F)

Changing of circulating fluid discharge
pressure rise

A.RUN

Detection pressure for circulating fluid
discharge pressure rise

0.30MPa(44PSI)*

Changing of circulating fluid discharge
pressure drop

A.RUN

Detection pressure for circulating fluid
discharge pressure drop

0.05MPa(7PSI)

Changing of communication error OFF
The monitoring time of communication

error

30 sec

Unused ­Changing of Contact input signal 2

detection

A.STP

Changing of DC line fuse cut A.STP
Changing of water leakage A.STP

Changing of upper limit of electric
resistivity

A.RUN

Upper limit of electric resistivity

4.5MΩ･cm

Changing of lower limit of electric
resistivity

OFF

Lower limit of electric resistivity

0.2MΩ･cm

Temperature alarm
Monitoring method

0

Monitoring start timer

----

Range over
Detection timer

5

5.15

Alarm setting
menu

Communication mode LOC

Serial protocol MDBS
Communication specifications 485
RS-485 terminal OFF

Slave address 1

Mod
bus

Communication speed 19.2
Slave address 1
Communication speed 9.6
BCC ON
Data length 8BIT
Parity check NON
Stop bit length 2BIT
Response delay time 0

Serial communication

Simple

communication

protocol

Communication range RW

5.18

Communicati
on setting
menu

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.1 Function HRS Series

5-6

Table 5.1-3 List of parameter (3/3)

Display Item

Initial value

(Default setting)

Reference

page

Category

Contact input signal 1 RUN
Contact input signal 1 type ALT
Unused ­Unused ­Contact input signal 2 OFF
Contact input signal 2 type ALT
Contact input signal 2 delay timer
(time delay) of reading

0

Contact input signal 2 OFF
detection timer

0

Contact output 1 function

RUN

Contact output 1 operation

A

Selected for contact output 1

AL.01

Contact output 2 function

RMT

Contact output 2 operation

A

Selected for contact output 2.

AL.01

Contact output 3 function ALM
Contact output 3 operation B

Contact input/output communication

Selected for contact output 3 AL.01

5.18

Communicati
on setting
menu

∗ Option T [High pump head] ：0.70MPa（102PSI）,MT:0.60MPa(87PSI)

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.2 Main screen

5-7

5.2 Main screen

5.2.1 Main screen

Displays the current temperature and the set temperature of the circulating
fluid. The set temperature can be changed on this screen.

5.2.2 Display on the main screen

The display on the main screen is as follows.

Current discharge temperature of circulating fluid Display

1. Turn ON the power supply switch.

Current temperature and set temperature are displayed on the digital display.
Alarm display screen (See 5.3) appears when an alarm is generated.

PV

SV

Circulating fluid temperature Set

2. Change the set temperature by pressing the [▼][▲] key.

After changing the set temperature, set it by pressing the [SEL] key.

∗The set value flashes while it is being changed.
∗If [SEL] key is not pressed, the value is reset after 3 sec.

Circulating fluid discharge pressure Diaplay

3. Press the [SEL] key.

The discharge pressure of the circulating fluid is displayed on the digital display.

PV

SV

Electric resistivity Display

4. Press the [SEL] key.

The electric resistivity is displayed on the digital display.

PV

SV

∗ Electric resistivity is displayed as [- - - -] if electric resistivity sensor set [Part

NO.:HRS-DI001] is not set.

∗ The unit of electric resistivity is [MΩ/cm]
∗ Electric resistivity is displayed within the range of 0.0 to 4.5MΩ/cm] electric

resistivity is 4.5MΩ/cm or more when flashing at 4.5.

Current discharge temperature

Set Temperature

Circulating fluid discharge pressure

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.3 Alarm display menu HRS Series

5-8

5.3 Alarm display menu

5.3.1 Alarm display menu

The alarm display screen appears when an alarm is generated.

∗ The alarm display menu cannot be accessed when no alarm has been

generated.

∗ Refer to “Chapter 6 Alarm indication and trouble shooting” for the content

of alarms.

5.3.2 Content of display of alarm display menu

The alarm display screen appears when an alarm is gernerated.
When multiple alarms are generated, the latest alarm is displayed on the

screen.
Each time the [SEL] key is pressed, the alarms are displayed in order,

starting from the latest one.

PV

SV

PV

SV

The main screen is displayed when the alarm is reset.

PV

SV

PV

SV

The main screen is displayed when [MENU] key is pressed while an alarm is
output.

PV

SV

PV

SV

The alarm display screen is displayed if [MENU] key is pressed again.

A

larm code

Alarm history

［SEL］

［MENU］

Alarm

release

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.4 Inspection monitor menu

5-9

5.4 Inspection monitor menu

5.4.1 Inspection monitor menu

As a part of the daily inspection, the temperature, pressure and accumulated
operating time can be checked.
Please use this for confirmation of your daily inspection.

5.4.2 Checking of the Inspection monitor menu

The table below explains the check items of the inspection monitor menu.

Table 5.4-1 List of check items of Inspection monitor menu

Display Item Contents

Circulating fluid outlet temperature

Displays the temperature of the circulating fluid outlet.
This temperature does not take offset into

consideration.
Circulating fluid return
port temperature

Displays the temperature of the circulating fluid return.
Temperature of the inlet of the

compressor

Displays the temperature of the inlet of the compressor.

Circulating fluid outlet pressure

Displays the circulating fluid outlet pressure at the

outlet.
Pressure of higher pressure
refrigerant circuit

Displays the pressure of higher pressure side of the

refrigerant circuit.
Pressure of lower pressure
refrigerant circuit

Displays the pressure of lower pressure side of the

refrigerant circuit.
Electric resistivity

Displays the electric resistivity.
Accumulated operation time of the

pump

Displays the accumulated operation time of the pump.
Accumulated operation time of the

fun motor

Displays the accumulated operation time of the fan

motor. (For air-cooled type)
Accumulated operation time of the
compressor

Displays the accumulated operation time of the

compressor.
Accumulated operation time Displays the accumulated operation time.

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.4 Inspection monitor menu HRS Series

5-10

Check of the circulating fluid outlet temperature

1. Press and hold the [MENU] key for approx. 2 sec.

The temperature of the circulating fluid outlet 「

」is displayed on the digital display.

PV

SV

PV

SV

Displays the temperature of the circulating fluid at the outlet from which the fluid is fed to
the customer’s device. This temperature does not take temperature offset into
consideration

Check of the circulating fluid inlet temperature

2. Press the [SEL] key once.

The temperature of the circulating fluid return is displayed on the digital display.

PV

SV

Displays the temperature of the circulating fluid returning from the customer’s device.

Check of the temperature of the inlet of the compressor.

3. Press the [SEL] key once.

The temperature of the refrigerant circuit compressor inlet is displayed on the digital
display.

PV

SV

Displays the temperature of the compressor inlet.

Check of the circulating fluid outlet pressure

4. Press the [SEL] key once.

The circulating fluid outlet pressure is displayed on the digital display.

PV

SV

The pressure of the circulating fluid outlet from which the fluid is sent to the customer’s
device is displayed.

Check of the pressure of the higher pressure side of the refrigerant circuit

5. Press the [SEL] key once.

The pressure of higher pressure refrigerant circuit is displayed on the digital display.

PV

SV

Displays the pressure of the higher pressure side of the refrigerant circuit.

［MENU］

Press and

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.4 Inspection monitor menu

5-11

Check of the pressure of the lower pressure side of the refrigerant circuit

6. Press the [SEL] key once.

The pressure of lower pressure refrigerant circuit is displayed on the digital display.

PV

SV

Displays the pressure of the lower pressure side of the refrigerant circuit.

Check of the electric resistivity

7. Press the [SEL] key once.

The electric resistivity is displayed on the digital display.

PV

SV

This function is available for customers who have purchased the electric resistivity

sensor set (part no.: HRS-Dl001).

Check of the accumulated operation time of the pump

8. Press the [SEL] key once.

The accumulated operation time of the pump is displayed on the digital display.

PV

SV

Displays the accumulated operation time of the pump. Refer to the table below for the
display.

Table 5.4-2 List of time display

Cumulative time Indicated value

0h to 999h

to

1,000h to 99,999h

to

100,000h

Return to

AL28 Pump maintenance alarm is generated when the accumulated operation time of the
pump reaches 20,000 hours (

) or more. For details, refer to Chapter 6 Alarm

indication and trouble shooting

.

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.4 Inspection monitor menu HRS Series

5-12

Check of the accumulated operation time of the fan motor

9. Press the [SEL] key once.

The accumulated operation time of the fun motor is displayed on the digital display.

PV

SV

Displays the accumulated operation time of the fan motor. Refer to Table 5.4-2 for the
display.

AL29 Fan motor maintenance alarm is generated when the accumulated operation
time of the fan motor reaches 20,000 hours (

) or more. For details, refer to

Chapter 6 Alarm indication and trouble shooting.
Water-cooled refrigerated type does not have the fan motor. The accumulated time of

the digital display shows “

“.

Also, AL29 fan motor maintenance alarm is not generated.

Check of the accumulated operation time of the compressor

10. Press the [SEL] key once.

The accumulated operation time of the compressor is displayed on the digital display.

PV

SV

Displays the accumulated operation time of the compressor. Refer to Table 5.4-2 for
the display.

AL30 Compressor maintenance alarm is generated when the accumulated operation
time of the compressor reaches 50,000 hours (

) or more. For details, refer to

Chapter 6 Alarm indication and trouble shooting.

Check of the accumulated operation time

11. Press the [SEL] key once.

The accumulated operation time is displayed on the digital display.

PV

SV

Displays the accumulated operation time. Refer to Table 5.4-2 for the display.

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.5 Key-lock

5-13

5.5 Key-lock

5.5.1 Key-lock

The keys can be locked to prevent the set values being changed by
operator error. Operation can be started/stopped by the “RUN/STOP” key
even while key-lock is set.

If you try to change the set value with “▲” and ”▼” key while key-lock is set,
“

” is displayed for 1 sec. on the screen. The set value cannot be

changed. (Refer to the figure below.)

PV

SV

PV

SV

During key-lock setting, no other setting is available.
Release the key-lock setting for other setting.

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.5 Key-lock HRS Series

5-14

5.5.2 Key-lock setting / checking

The table below explains the setting items of the key-lock function and the
initial values.

Table 5.5-1 List of key-lock

Display Item Contents

Initial value

(Default setting)

Key-lock

Sets key-lock.
While key-lock setting is ON, no other setting is
available.

OFF

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing until the setting display [

] for key-lock setting appears on the

digital display

PV

SV

PV

SV

PV

SV

Key-lock setting and checking

2. Select “ON” from the table below with [▲] key or [▼] key, and confirm with “SEL”.

Table 5.5-2 List of set value

Set value Explanation

Initial value

(Default setting)

Key-lock function OFF

○

Key-lock function ON

3. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.6 Run timer, stop timer function

5-15

5.6 Run timer, stop timer function

5.6.1 Run timer and stop timer function

This function starts or stops operation automatically when a set time has
passed. The time can be set according to the customer’s working hours. Set
the circulating fluid temperature in advance.

[Run timer] is a function to start operation after a set time. Stop timer] is a
function to stop operation after a set time. It is possible to set both [Run
timer] and [Stop timer]. The set time of both the [Run timer] and [Stop timer]
can be up to 99.5 hours, in 0.5 hour units.

【When communication is used】

If the communication mode is DIO REMOTE, SERIAL mode, this function
does not operate. DIO REMOTE, SERIAL mode operation/stop signal has
priority.

●Run timer

・Run timer] starts operation after the set time.

If the thermo-chiller is already operating or the pump is operating
independently, this function does not operate even if the set time has
passed.

Operation can start when the condition is normal and there is no alarm
generated.

・The [

] lamp lights up when the run timer is set. The [ ] lamp is turned

off when the operation is started by the run timer.

The [

] lamp is not turned off if the Stop timer is set.

・The Run timer setting is reset when the main power supply is cut or a

power failure occurs. Please reset.

●Stop timer

・The [

] lamp lights when the Stop timer is set. The [ ] lamp is turned off

if the operation is stopped by the Stop timer.

The [

] lamp is not turned off if the Run timer is set.

・The Stop timer setting is reset when the main power supply is cut or a

power failure occurs. Please reset.

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.6 Run timer, stop timer function HRS Series

5-16

Timer setting example

Now 1H 2H 3H 4H 5H 6H 7H 8H

Stopped Operating

・・・

Run timer
Set to start after 3hours

↑Operating

Now 1H 2H 3H 4H 5H 6H 7H 8H

Operating Stopped

・・・

Stop timer
Set to stop after 3 hours

↑Stopped

Now 1H 2H 3H 4H 5H 6H 7H 8H

Stopped Operating Stopped

・・・

Run timer＋

Stop timer
Set to start after 2 hours
Set to stop after 5.5 hours

↑Operating ↑Stopped

Now 1H 2H 3H 4H 5H 6H 7H 8H

Operating Stopped Operating

・・・

Run timer＋

Stop timer

Set to stop after 2 hours
Set to start after 5.5hours

↑Stopped ↑Operating

z Set while the power supply switch is ON (while the power is

supplied).

z The setting is released when operation is started or stopped by the

timer. Resetting is necessary to use the timer next time.

z Run timer setting is released when the power supply switch or the

customer’s power supply facility is cut, or a power failure occurs.
Please reset.

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.6 Run timer, stop timer function

5-17

5.6.2 Setting and checking of Run timer and stop timer function

The table below explains the setting items of the run/stop timer and the initial
values.

Table 5.6-1 List of set run timer and stop timer

Display Item Contents

Initial value

(Default setting)

Run timer Sets run timer. 0.0H
Stop timer Sets stop timer. 0.0H

This part explains the setting and checking items of both the run and stop
timers. Please refer to the applicable items for the timer you wish to use.

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for key-lock [

] appears on the

digital display.

PV

SV

PV

SV

PV

SV

Run timer Setting and checking

2. Press the [SEL] key once.

The set screen of run timer is displayed on the digital display.

PV

SV

3. Select run timer from the table below with [▲] key or [▼] key, and confirm by pressing

“SEL”.

Table 5.6-2 List of set value

Set value Explanation

Initial value

(Default setting)

Timer OFF

○

to

Operation starts after set time.
Setting unit is 0.5 hour

E.g. Set at 5:30pm the previous day. Operation starts 14 hours later (7:30am the next
day).

PV

SV

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.6 Run timer, stop timer function HRS Series

5-18

Stop timer Setting and checking

4. Press the [SEL] key once.

The set screen of stop timer is displayed on the digital display.

PV

SV

5. Select stop timer from the table below with [▲] key or [▼] key, and confirm by pressing

“SEL”.

Table 5.6-3 List of set value

Set value Explanation

Initial value

(Default setting)

Timer OFF

○

to

Operation stops after set time.
Setting unit is 0.5 hour

E.g. Set at 4:30pm. Operation stops 1 hour and 30 minutes later (at 6:00pm).

PV

SV

6. Press the [MENU] key once.

Return to the screen displaying the circulating fluid temperature.

PV

SV

7. Once the run timer is set leave the power supply to the product on. The product will start

automatically in the set time.

When the stop timer is set, leave the product running. The product will stop automatically
in the set time.

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.7 Signal for completion of preparation (TEMP READY)

5-19

5.7 Signal for completion of preparation (TEMP
READY)

5.7.1 Signal for completion of preparation (TEMP READY)

This function sets the band width for the circulating fluid set temperature
(upper/lower temperature range) in order to notify the customer by
communication that the circulating fluid temperature has reached the band
range (upper/lower temperature range).The default setting of this function is
“OFF”.

【Tips】

This function is available when contact input/output and serial communication
is used. Refer to the Communications Operation Manual for more details.

An example is shown below.

Circulating fluid set temperature

：20℃

READY band width (upper/lower
temperature range)

：±2℃

READY time

：60 sec.

Preparation is completed 60 seconds after the circulating fluid temperature
reaches 18

o

C to 22oC.

Circulating set fluid 20℃

READY TEMP 22℃

READY TEMP 18℃

READY band width
（upper/lower temperature range） 2℃

READY band width
（upper/lower temperature range） 2℃

Circulating set fluid

READY time

６０sec

Completion

of preparation

READY time

lower than ６０sec

Contact output：State generation output
Serial：ON output

Contact output：State not generation out put
Serial ：OFF output

Completion of preparation

（TEMP READY）

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.7 Signal for completion of preparation (TEMP READY) HRS Series

5-20

5.7.2 Signal for completion of preparation (TEMP READY) setting /
checking

The table below shows the explanation of and initial value of set items of
signal for completion of preparation (TEMP. READY)

Table 5.7-1 List of set Signal for completion of preparation (TEMP READY)

Display Item Contents

Initial value

(Default setting)

READY mode

Sets signal for completion of preparation
(TEMP READY)

OFF

READY band width
(upper/lower
temperature range）

Sets temperature of signal for completion of
preparation.

0.0℃

READY time

Sets time of signal for completion of
preparation.

10 sec

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for key-lock [

] appears on the

digital display.

PV

SV

PV

SV

PV

SV

READY mode Setting and checking

2. Press the [SEL] key 3 times.

The set screen of ready mode is displayed on the digital display.

PV

SV

3. Select ｢ON｣ from the table below with [▲] key or [▼] key, and confirm by pressing

“SEL”.

Table 5.7-2 List of set value

Set value Explanation

Initial

(Default setting)

Signal for completion of preparation (TEMP
READY) function OFF

○

Signal for completion of preparation (TEMP
READY) function ON

READY band width setting and checking

4. Press the [SEL] key once.

The set screen of READY band width (upper/lower temperature range) is displayed on
the digital display.

PV

SV

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.7 Signal for completion of preparation (TEMP READY)

5-21

5. Select READY band width (upper/lower temperature range) from the table below with

[▲] key or [▼] key, and confirm by pressing “SEL”.

Table 5.7-3 List of set value

Set value Explanation

Initial

(Default setting)

Setting and checking are not available when
READY mode setting is OFF.

Centigrade

to

Fahrenheit

to

Set READY band width (upper/lower
temperature range) for the circulating fluid
temperature

Temperature unit is Centigrade : Setting unit is

0.1

o

C

Temperature unit is Fahrenheit : Setting unit is

0.1

o

F

READY time Set and checking

6. Press the [SEL] key once.

The set screen of READY time is displayed on the digital display.

PV

SV

7. Select READY time from the table below with [▲] key or [▼] key, and confirm by

pressing “SEL”.

Table 5.7-4 List of set value

Set value Explanation

Initial value

(Default setting)

Setting and checking are not available when
READY mode setting is OFF.

to

Sets ultimate time.
Set unit is 1 sec.

8. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.8 Offset function HRS Series

5-22

5.8 Offset function

5.8.1 Offset function

This function controls the circulating fluid discharge temperature with offset.
Temperature offset may occur between the thermo-chiller and the

customer’s device depending on the installation environment. To correct the
temperature offset, three types of offset functions are available (MODE1 to

3). The default setting of this function is “OFF”.

【When communication is used】

The circulating fluid temperature sent by serial communication is the
circulating fluid temperature which is displayed on the thermo-chiller (the
circulating fluid temperature after offset).

●Example of temperature offset
The discharge temperature of the circulating fluid is 30

o

C, but the fluid

temperature in the customer’s device is 29

o

C because of heat radiation

during sending of the fluid.

Circulating fluid display

temperature

30℃

Circulating fluid set

temperature

30℃

This produuct Your system

Serial communication

Discharge

temperature 30℃

Heat

radiation

1℃

29℃

Circulating fluid
temperature 30℃

MODE Explanation

MODE1

Control the temperature so that the discharge temperature of
the circulating fluid is circulating fluid set temperature + offset
temperature. Circulating fluid temperature indicates the
circulating fluid discharge temperature.

MODE2

Control the temperature so that the discharge temperature
of the circulating fluid is circulating fluid set temperature.
Circulating fluid temperature indicates the circulating fluid
discharge temperature + offset temperature.

MODE3

Control the temperature so that the discharge temperature
of the circulating fluid is circulating fluid set temperature +
offset temperature. Circulating fluid temperature indicates
the circulating fluid discharge temperature - offset
temperature.

OFF

Control the temperature so that the discharge temperature of
the circulating fluid is circulating fluid temperature set value.

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.8 Offset function

5-23

■ Example of MODE 1
When the offset temperature is 1

o

C, the thermo-chiller controls the temperature aiming at

31

o

C (circulating fluid set temperature + offset temperature.) Even if the discharge

temperature is 31

o

C, the circulating fluid temperature is 30oC at the customer’s device

because of 1

o

C of heat radiation during sending of the fluid. Recircualting fluid display

temperature and communication data is 31

o

C.

Circulating fluid display

temperature

31℃

Circulating fluid set

temperature

30℃

Offset temperature

1℃

This produuct Your system

Serial communication

Discharge

temperature 31℃

30℃

Circulating fluid
temperature 31℃

Heat

radiation

1℃

■ Example of MODE 2
When the offset temperature is -1

o

C, circulating fluid display temperature and the

communication data is 29

o

C (circulating fluid discharge temperature + offset temperature),

and matches the circulating fluid temperature of the customer's device.

Circulating fluid display

temperature

29℃

Circulating fluid set

temperature

30℃

Offset temperature

-1℃

This produuct Your system

Serial communication

Discharge

temperature 30℃

29℃

Circulating fluid
temperature 29℃

Heat

radiation

1℃

■ Example of MODE 3
When the offset temperature is 1

o

C, the thermo-chiller controls the temperature aiming at

31

o

C (circulating fluid set temperature + offset temperature) Even if the discharge

temperature is 31

o

C, the circulating fluid temperature is 30oC at the customer’s device

because of 1

o

C of heat radiation during sending of the fluid. The circulating fluid display

temperature and the communication data is 30

o

C (circulating fluid discharge temp. - offset

temp.), and matches the circulating fluid temperature of the customer's device.

Circulating fluid display

temperature

30℃

Circulating fluid set

temperature

30℃

Offset temperature

1℃

This produuct Your system

Serial communication

Discharge

temperature 31℃

30℃

Circulating fluid
temperature 30℃

Heat

radiation

1℃

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.8 Offset function HRS Series

5-24

5.8.2 Offset function setting and checking

The table below explains the setting items of the offset function and the initial
values.

Table 5.8-1 List of set offset function

Display Item Contents

Initial

(Default setting)

Offset mode Sets offset mode. OFF
Offset temperature Sets offset temperature.

0.0℃

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for key-lock [

] appears on the

digital display.

PV

SV

PV

SV

PV

SV

Offset mode Setting and checking

2. Press the [SEL] key 6 times.

The set screen of offset mode is displayed on the digital display.

PV

SV

3. Select offset mode from the table below with [▲] key or [▼] key, and confirm by pressing

“SEL”.

Table 5.8-2 List of set value

Set value Explanation

Initial value

(Default setting)

Offset function OFF

○

Offset mode 1
Offset mede 2
Offset mode 3

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.8 Offset function

5-25

Offset temperature Setting and checking

4. Press the [SEL] key once.

The set screen of offset temperature is displayed on the digital display.

PV

SV

5. Select offset temperature from the table below with [▲] key or [▼] key, and confirm by

pressing “SEL”.

Table 5.8-3 List of set value

Set value Explanation

Initial

(Default setting)

Setting and checking are not available when
offset mode setting is OFF.

Centigrade

to

Fahrenheit

to

Sets offset temperature.

Temperature unit is Centigrade : Setting unit is

0.1

o

C

Temperature unit is Fahrenheit : Setting unit is

0.1

o

F

6. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

z This function controls the offset temperature to the circulating fluid

discharge temperature

z Control range of the circulating fluid temperature is 5.0℃ to 40.0℃

(41.0 ﾟ F to 104.0 ﾟ F).

z When the circulating fluid temperature is set to 5.0

o

C (41oF) and the

offset temperature to -20.0

o

C (-36.0oF), the offset temperature is

automatically adjusted to 0.0oC (0.0

o

F) depending on the offset

mode.

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.9 Function to recover from power failure HRS Series

5-26

5.9 Function to recover from power failure

5.9.1 Function to recover from power failure

When the power supply is cut due to power failure etc., this function restarts
the operation when the power supply recovers, retaining the conditions
before the power cut.

【When communication is used】

If the communication mode is DIO REMOTE, SERIAL mode (MODBUS), this
function does not start. The signal of start/stop of DIO REMOTE SERIAL
mode (MODBUS) has priority.

The [

] lamp lights when the power failure recovery is set. The default

setting of this function is “OFF”.

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.9 Function to recover from power failure

5-27

5.9.2 Function to recover from power failure setting and checking

The table below explains the setting items of the power recovery function
and the initial values.

Table 5.9-1 List of set function to recover from power failure

Display Item Contents

Initial value

(Default setting)

Recover from
power failure

Sets recover from power
failure.

OFF

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for key-lock [

] appears on the

digital display.

PV

SV

PV

SV

PV

SV

Recover from power failure Setting and checking

2. Press the [SEL] key 8 times.

The set screen of recover from power failure is displayed on the digital display.

PV

SV

3. Select recover from power failure from the table below with [▲] key or [▼] key, and

confirm by pressing “SEL”.

Table 5.9-2 List of set value

Set value Explanation

Intial value

(Default setting)

Function to recover from power failure OFF

○

Function to recover from power failure ON

4. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.10 Anti-freezing function HRS Series

5-28

5.10 Anti-freezing function

5.10.1 Anti-freezing function

The product can prevent the circulating fluid from freezing during winter time.
If there is a possibility of the circulating fluid freezing due to changes in the
installation and operating environment (operating period and weather), set
the protection in advance.

z

If the circulating fluid temperature falls below 3℃, the pump will start
operating automatically.

z

The heat generated by the pump operation will warm up the circulating
fluid.
When the circulating fluid temperature reaches 5℃ or higher, the pump
will stop operating automatically.

z

As a result, the circulating fluid maintains a temperature of between 3℃
and 5℃, preventing freezing.

If the anti-freezing function is set, [RUN] lamp flashes for 2 sec. during
waiting (pump does not operate). The [RUN] lamp flashes at 0.3 sec.
intervals during the automatic operation of the pump. The default setting of
this function is “OFF”.

z This function starts in stand-by condition (power supply switch is

ON).

z Fully open the valve or manual bypass valve arranged by the

customer so that the circulating fluid can circulate when the pump
starts automatic operation.

z In extremely cold weather conditions, the heat generated by the

pump as described above may not be enough to prevent freezing.

z During the automatic operation, the pump does not stop even if you

press "RUN/STOP" key.

z In an emergency, stop operation by shutting off the power supply.

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.10 Anti-freezing function

5-29

5.10.2 Anti-freezing function setting and checking

The table below explains the setting items of the anti-freezing function and
the initial values.

Table 5.10-1 List of set anti-freezing function

Display Item Contents

Initial value

(Default setting)

Anti-freezing Sets anti-freezing OFF

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for key-lock [

] appears on the

digital display.

PV

SV

PV

SV

PV

SV

Anti-freezing Setting and checking

2. Press the [SEL] key 9 times.

The set screen of anti-freezing is displayed on the digital display.

PV

SV

3. Select anti-freezing from the table below with [▲] key or [▼] key, and confirm by

pressing “SEL”.

Table 5.10-2 List of set value

Set value Explanation

Initial value

(Default setting)

Anti-freezing function OFF

○

Anti-freezing function ON

4. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.11 Key click sound setting HRS Series

5-30

5.11 Key click sound setting

5.11.1 Key click sound setting

Set whether or not a click sound is made when keys on the operation panel are
pressed.

The default setting is key sound “on”.

5.11.2 Key click sound setting and checking

The table below explains the setting items of the key click sound and the
initial values.

Table 5.11-1 List of set key click sound

Display Item Contents

Initial value

(Default setting)

Key click sound Sets key click sound. ON

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for key-lock [

] appears on the

digital display.

PV

SV

PV

SV

PV

SV

Key click sound Setting and checking

2. Press the [SEL] key 10 times.

The set screen of key click sound is displayed on the digital display.

PV

SV

3. Select key click sound from the table below with [▲] key or [▼] key, and confirm by

pressing “SEL”.

Table 5.11-2 List of set value

Set value

Explanation

Initial value

(Default setting)

No key click sound
Key click sounds

○

4. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.12 Temperature unit switching

5-31

5.12 Temperature unit switching

5.12.1 Temperature unit switching

The temperature unit of the thermo-chiller can be set to centigrade (oC) or
Fahrenheit (

o

F). This setting determines the temperature unit which is

displayed/output. The default setting is centigrade (

o

C).

5.12.2 Temperature unit switching setting and checking

The table below explains the setting items of the temperature unit switching
and the initial values.

Table 5.12-1 List of set temperature unit switching

Display Item Contents

Initial value

(Default setting)

Temperature unit Sets temperature unit.

o

C

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for key-lock [

] appears on the

digital display.

PV

SV

PV

SV

PV

SV

Temperature unit Setting and checking

2. Press the [SEL] key 11 times.

The set screen of temperature unit is displayed on the digital display.

PV

SV

3. Select temperature unit from the table below with [▲] key or [▼] key, and confirm by

pressing “SEL”.

Table 5.12-2 List of set value

Set value Explanation

Initial value

(Default setting)

Sets temperature unit is centigrade (oC).

○

Sets temperature unit is fahrenheit (

o

F)

4. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.13 Pressure unit switching HRS Series

5-32

5.13 Pressure unit switching

5.13.1 Pressure unit switching

The pressure unit of the thermo-chiller can be set to MPa or PSI. This
setting determines the pressure unit which is displayed/output. The default
setting is MPa.

5.13.2 Pressure unit switching setting and checking

The table below explains the setting items of the pressure unit switching and
the initial values.

Table 5.13-1 List of set Pressure unit switching

Display Item Contents

Initial value

(Default setting)

Pressure unit Sets pressure unit. MPa

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for key-lock [

] appears on the

digital display.

PV

SV

PV

SV

PV

SV

Pressure unit Setting and checking

2. Press the [SEL] key 12 times.

The set screen of pressure unit is displayed on the digital display.

PV

SV

3. Select pressure unit from the table below with [▲] key or [▼] key, and confirm by

pressing “SEL”.

Table 5.13-2 List of set value

Set value Explanation

Initial value

(Default setting)

Sets pressure unit is MPa.

○

Sets pressure unit is PSI.

4. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.14 Alarm buzzer sound setting

5-33

5.14 Alarm buzzer sound setting

5.14.1 Alarm buzzer sound setting

This sets whether a warning sound is made or not when alarm signal is
output.

The default setting is buzzer sound ON.

5.14.2 Alarm buzzer sound setting and checking

The table below explains the setting items of the alarm buzzer sound and the
initial values.

Table 5.14-1 List of set alarm buzzer sound

Display Item Contents

Initial value

(Default setting)

Alarm buzzer
sound

Sets

alarm buzzer sound.

ON

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for alarm buzzer sound [

]

appears on the digital display.

PV

SV

PV

SV

PV

SV

PV

SV

Alarm buzzer sound Setting and checking

2. Select alarm buzzer sound from the table below with [▲] key or [▼] key, and confirm by

pressing “SEL”.

Table 5.14-2 List of set value

Set value Explanation

Initial value

(Default setting)

No alarm buzzer sound
Alarm buzzer sound

○

3. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

［MENU］

Press

and hold

［MENU］

Press

and hold

［MENU］

Press

and hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.15 Alarm customize function HRS Series

5-34

5.15 Alarm customize function

5.15.1 Alarm customize function

The operation and the threshold when alarm signal is output can be
customized. Customers should set them depending on their applications.

The alarms below can be customized.

●AL01 Low level in tank(Refer to Table 5.15-3)
Operation: When this alarm signal is output, user can choose to

stop/continue the operation.
"Operation stop" is default setting.

●AL03 Circulating fluid discharge temp. rise (Refer to Table 5.15-4 and Table 5.15-5)
Operation: When this alarm signal is output, user can choose to

stop/continue operation, or not to detect this alarm.

"Operation continue" is default setting.

Threshold change: Temp. setting at which the alarm is generated can be

changed, and also, the alarm generating conditions can be set.

“45.0

o

C" is default setting.

●AL04 Circulating fluid discharge temp. (Refer to Table 5.15-6 and Table 5.15-7)
Operation: When this alarm signal is output, user can choose to

stop/continue operation, or not to detect this alarm.

"Operation continue" is default setting.

Threshold change: Temp. setting at which the alarm is generated can be

changed, and also, the alarm generating conditions can be set.

“1.0

o

C" is default setting.

●AL08 Circulating fluid discharge pressure rise (Refer to Table 5.15-8 and Table

5.15-9)
Operation: When this alarm signal is output, user can choose to

stop/continue operation, or not to detect this alarm.

"Operation continue" is default setting.

Threshold change: Pressure at which this alarm is generated can be

changed.

“0.30MPa" is default setting.
(High pump head [Optional] -T：「0.70MPa」，

-MT：0.60MPa｣)

●AL09

Circulating fluid discharge pressure drop (Refer to Table 5.15-10 and Table

5.15-11)
Operation: When this alarm signal is output, user can choose to

stop/continue operation, or not to detect this alarm.

"Operation continue" is default setting.

Threshold change: Pressure at which this alarm is generated can be

changed.

“0.05MPa" is default setting.

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.15 Alarm customize function

5-35

●AL19 Communication error (Refer to Table 5.15-12 and Table 5.15-13)
Operation: When this alarm signal is output, user can choose to

stop/continue operation, or not to detect this alarm.

“Not to detect “is default setting.

Threshold change: Time at which this alarm is generated can be

changed.

“30sec" is default setting.

●AL31 Contact input signal 1 detection(Refer toTable 5.15-14)
Operation: When this alarm signal is output, user can choose to

stop/continue operation, or not to detect this alarm.

"Operation continue" is default setting.

●AL32 Contact input signal 2 detection (Refer to Table 5.15-15)
Operation: When this alarm signal is output, user can choose to

stop/continue operation, or not to detect this alarm.

"Operation continue" is default setting.

●AL21 DC fuse cut（Refer to Table 5.15-16）
Operation: When this alarm signal is output, user can choose to

stop/continue the operation.

"Operation stop" is default setting.

●AL33

Water leakage（Refer to Table 5.15-17）

Operation: When this alarm signal is output, user can choose to

stop/continue the operation.

"Operation stop" is default setting.

●AL34 Electric resistivity rise（Refer to Table 5.15-18、Table 5.15-19）
Operation: When this alarm signal is output, user can choose to

continue operation, or not to detect this alarm.

"Operation continue" is default setting.

Threshold change: Electric resistivity at which this alarm is generated

can be changed.

“4.5MΩ･cm " is default setting.

●AL35 Electric resistivity drop（Refer to Table 5.15-20、Table 5.15-21）
Operation: When this alarm signal is output, user can choose to

continue operation, or not to detect this alarm.

“Not to detect “is default setting.

Threshold change: Electric resistivity at which this alarm is generated

can be changed.

“0.2MΩ･cm" is default setting.

"Operation stop" is the default setting for alarm “AL01 Low tank level”.
If the customer changes this setting to continue operation, fill the
circulating fluid immediately after the alarm is generated.Operation
without filling the circulating fluid leads to cause malfunction.

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.15 Alarm customize function HRS Series

5-36

5.15.2 Alarm customize function setting and checking

The table below explains the setting items of the alarm customize function
and the initial values.

Table 5.15-1 List of set alarm customize function(1/2)

Display Item Contents

Initial value

(Default setting)

Changing of

low tank level

Set the operation when alarm No. AL01 "Low
tank level" is generated.

A.STP

Changing of circulating
fluid discharge
temperature rise

Set the operation when alarm No. AL03
"circulating fluid discharge temperature rise" is
generated.

A.RUN

Detection temperature for
circulating fluid discharge
temperature rise

Sets the detection temperature for the alarm of
alarm NO. AL03 "circulating fluid discharge
temperature rise ".

Alarm signal is generated when the temperature
becomes higher than this temperature.

45.0℃
(113.0 ﾟ F)

Changing of circulating
fluid discharge
temperature drop

Set the operation when alarm No. AL04"
circulating fluid discharge temperature drop “is
generated.

A.RUN

Detection

temperature for

circulating fluid discharge
temperature drop

Sets the detection temperature for the alarm of
alarm NO. AL04 "circulating fluid discharge
temperature drop ".
Alarm signal is generated when the temperature
becomes lower than this temperature.

1.0℃
(33.8 ﾟ F)

Changing of circulating
fluid discharge pressure
rise

Set the operation when alarm No. AL08
"circulating fluid discharge pressure rise " is
generated.

A.RUN

Detection pressure for
circulating fluid discharge
pressure rise

Sets the detection pressure for the alarm of alarm
NO. AL08 "circulating fluid discharge pressure
rise ".

Alarm signal is generated when the pressure
becomes higher than this pressure.

0.30MPa
(44PSI)

Changing of circulating
fluid discharge pressure
drop

Set the operation when alarm No. AL09
"circulating fluid discharge pressure drop" is
generated.

A.RUN

Detection

pressure for

circulating fluid discharge
pressure drop

Sets the detection pressure for the alarm of alarm
NO. AL09 "circulating fluid discharge pressure
drop ".

Alarm signal is generated when the pressure
becomes lower than this pressure.

0.05MPa
(7PSI)

Changing of operation
when

communication error

Set the operation when the alarm No. AL19
“Communication error” is generated.

OFF

The monitoring time of
communication error

Set the alarm monitoring time when the alarm No.
AL19 “Communication error” is generated. Alarm
signal is generated when the monitoring time is
exceeded.

30 sec

Changing of contact input
signal 1 detection

Set the operation when the alarm No. AL31
“contact input signal 1 detection” is generated.

A.STP

Changing of contact input
signal 2 detection

Set the operation when the alarm No. AL32
“contact input signal 2 detection” is generated.

A.STP

Changing of DC line fuse
cut

Set the operation when the alarm No. AL21 “DC
line fuse cut” is generated.

A.STP

Changing of water leakage

Set the operation when the alarm No. AL33
“water leakage” is generated.

A.STP

Changing of electric
resistivity rise

Set the operation when the alarm No. AL34
“Electric resistivity rise” is generated.

A.RUN

Upper limit of electric
resistivity rise

Sets the detection level for the alarm of alarm
NO. AL34 "Electric resistivity rise".

Alarm signal is generated when the level
becomes higher than this level.

4.5MΩ･cm

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.15 Alarm customize function

5-37

Table 5.15-2 List of set alarm customize function(2/2)

Display Item Contents

Initial value

(Default setting)

Changing of electric
resistivity drop

Set the operation when the alarm No. AL35
“Electric resistivity drop” is generated.

OFF

Lower limit of electric
resistivity drop

Sets the detection level for the alarm of alarm
NO. AL35 "Electric resistivity drop".

Alarm signal is generated when the level
becomes lower than this level.

0.2MΩ･cm

Temperature alarm
Monitoring method

One alarm monitoring method can be selected
from four methods for AL04 "Detection temp for
the circulating fluid discharge temp. increase"
and AL06 "Detection temp. for circulating fluid
discharge temp. drop".

0

Monitoring start timer

Alarm will not be generated during the set period
of time after starting operation. Alarm monitoring
starts when it reaches the set time.

----

Range over
Detection timer

After starting the alarm monitoring, the alarm will
not be generated right away and will be kept not
generated for the set period of time for AL04
"Detection temp for the circulating fluid discharge
temp. increase" and AL06 "Detection temp. for
circulating fluid discharge temp. drop", when the
temperatures goes out of the set range.

5

*1：This function is available for customers who have purchased the drain pan set (part no.: HRS-WL001).
*2 ： This function is available for customers who have purchased the electric resistivity sensor set (part no.:

HRS-Dl001).

1. Press and hold the [MENU] key for approx. 2 sec.

Repeat pressing the key until the setting screen for alarm buzzer sound [

]

appears on the digital display.

PV

SV

PV

SV

PV

SV

PV

SV

Low tank level Setting and checking

2. Press the [SEL] key once.

The set screen of changing of low tank level is displayed on the digital display.

PV

SV

3. Select changing of low tank level from the table below with [▲] key or [▼] key, and

confirm by pressing “SEL”.

Table 5.15-3 List of set value

Set value Explanation

Initial value

(Default setting)

Operation continues when this alarm signal is
generated.
Operation is stopped when this alarm signal is
generated.

○

［MENU］

Press and

hold

［MENU］

Press and

hold

［MENU］

Press and

hold

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.15 Alarm customize function HRS Series

5-38

Changing of circulating fluid discharge temperature rise Setting and checking

4. Press the [SEL] key once.

The set screen of changing of circulating fluid discharge temperature rise is displayed on
the digital display.

PV

SV

5. Select changing of circulating fluid discharge temperature rise from the table below with

[▲] key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-4 List of set value

Set value Explanation

Initial value

(Default setting)

This alarm signal is not detected.
Operation continues when this alarm signal is

generated.

○

Operation is stopped when this alarm signal is
generated.

Detection temperature for circulating fluid discharge temperature rise Setting and checking

6. Press the [SEL] key once.

The set screen of detection temperature for circulating fluid discharge temperature rise is
displayed on the digital display.

PV

SV

7. Select detection temperature for circulating fluid discharge temperature rise from the

table below with [▲] key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-5 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the circulating fluid discharge
temperature rise is OFF.

Centigrade

to

Fahrenheit

to

Sets detection temp for the circulating fluid
discharge temperature rise.

Temperature unit is Centigrade : Setting unit is

0.1

o

C

Temperature unit is Fahrenheit : Setting unit is

0.1

o

F

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.15 Alarm customize function

5-39

Changing of circulating fluid discharge temperature drop setting and checking

8. Press the [SEL] key once.

The set screen of changing of circulating fluid discharge temperature drop is displayed
on the digital display.

PV

SV

9. Select changing of circulating fluid discharge temperature drop from the table below with

[▲] key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-6 List of set value

Set value Explanation

Initial value

(Default setting)

This alarm signal is not detected.
Operation continues when this alarm signal is

generated.

○

Operation is stopped when this alarm signal is
generated.

Detection temperature for circulating fluid discharge temperature drop Setting and checking

10. Press the [SEL] key once.

The set screen of detection temperature for circulating fluid discharge temperature drop
is displayed on the digital display.

PV

SV

11. Select detection temperature for circulating fluid discharge temperature drop from the

table below with [▲] key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-7 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the circulating fluid discharge
temperature drop is OFF.

Centigrade

to

Fahrenheit

to

Sets detection temp for the circulating fluid
discharge temperature drop.

Temperature unit is Centigrade : Setting unit is

0.1

o

C

Temperature unit is Fahrenheit : Setting unit is

0.1

o

F

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.15 Alarm customize function HRS Series

5-40

Changing of circulating fluid discharge pressure rise Setting and checking

12. Press the [SEL] key once.

The set screen of changing of circulating fluid discharge pressure rise is displayed on the
digital display.

PV

SV

13. Select changing of circulating fluid discharge pressure rise from the table below with [▲]

key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-8 List of set value

Set value Explanation

Initial value

(Default setting)

This alarm signal is not detected.
Operation continues when this alarm signal is

generated.

○

Operation is stopped when this alarm signal is
generated.

Detection temperature for circulating fluid discharge pressure rise Setting and checking

14. Press the [SEL] key once.

The set screen of detection temperature for circulating fluid discharge pressure rise is
displayed on the digital display.

PV

SV

15. Select detection temperature for circulating fluid discharge pressure rise from the table

below with [▲] key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-9 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the circulating fluid discharge
pressure rise is OFF.

MPa

to

PSI

to

Sets detection temp for the circulating fluid
discharge pressure rise.

・Option -T
Set range：0.05 to 0.70MPa（7 to 102PSI）
Default setting：0.70MPa（102PSI）
・Option -MT
Set range：0.05 to 0.60MPa（7 to 87PSI）
Default setting：0.60MPa（87PSI）

Pressure unit is MPa : Setting unit is 0.01MPa
Pressure unit is PSI : Setting unit is 1PSI

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.15 Alarm customize function

5-41

Changing of circulating fluid discharge pressure drop Setting and checking

16. Press the [SEL] key once.

The set screen of changing of circulating fluid discharge pressure drop is displayed on
the digital display.

PV

SV

17. Select changing of circulating fluid discharge pressure dro from the table below with [▲]

key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-10 List of set value

Set value Explanation

Initial value

(Default setting)

This alarm signal is not detected.
Operation continues when this alarm signal is
generated.

○

Operation is stopped when this alarm signal is
generated.

Detection temperature for circulating fluid discharge pressure drop Setting and checking

18. Press the [SEL] key once.

The set screen of detection temperature for circulating fluid discharge pressure drop is
displayed on the digital display.

PV

SV

19. Select detection temperature for circulating fluid discharge pressure drop from the table

below with [▲] key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-11 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the circulating fluid discharge
temperature drop is OFF.

MPa

to

PSI

to

Sets detection temperature for circulating fluid
discharge pressure drop.

・Option -T
Set range：0.05 to 0.70MPa（7 to 102PSI）
Default setting：0.70MPa（102PSI）
・Option -MT
Set range：0.05 to 0.60MPa（7 to 87PSI）
Default setting：0.60MPa（87PSI）

Pressure unit is MPa : Setting unit is 0.01MPa
Pressure unit is PSI : Setting unit is 1PSI

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.15 Alarm customize function HRS Series

5-42

Changing of operation when communication error Setting and checking

20. Press the [SEL] key once.

The set screen of changing of operation when communication error is displayed on the
digital display.

PV

SV

21. Select changing of operation when communication error from the table below with [▲]

key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-12 List of set value

Set value Explanation

Initial value

(Default setting)

This alarm signal is not detected.

○

Operation continues when this alarm signal is
generated.
Operation is stopped when this alarm signal is
generated.

The monitoring time of communication error Setting and checking

22. Press the [SEL] key once.

The set screen of the monitoring time of communication error is displayed on the digital
display.

PV

SV

23. Select the monitoring time of communication error from the table below with [▲] key or

[▼] key, and confirm by pressing “SEL”.

Table 5.15-13 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the communication error is OFF.

to

Sets communication error.
Set unit is 1 sec. unit.

Changing of Contact input signal 1 detection Setting and checking

24. Press the [SEL] key once.

The set screen of the changing of contact input signal 1 detection is displayed on the
digital display.

PV

SV

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.15 Alarm customize function

5-43

25. Select the changing of contact input signal 1 detection from the table below with [▲]

key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-14 List of set value

Set value Explanation

Initial value

(Default setting)

This alarm signal is not detected.
Operation continues when this alarm signal is

generated.
Operation is stopped when this alarm signal is
generated.

○

Changing of Contact input signal 2 detection Setting and checking

26. Press the [SEL] key once.

The set screen of the changing of contact input signal 2 detection is displayed on the
digital display.

PV

SV

27. Select the changing of contact input signal 2 detection from the table below with [▲]

key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-15 List of set value

Set value Explanation

Initial value

(Default setting)

This alarm signal is not detected.
Operation continues when this alarm signal is

generated.
Operation is stopped when this alarm signal is
generated.

○

28. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV

Changing of DC line fuse cut Setting and checking

29. Press the [SEL] key once.

The set screen of the changing of DC line fuse cut is displayed on the digital display.

PV

SV

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.15 Alarm customize function HRS Series

5-44

30. Select the changing of DC line fuse cut from the table below with [▲] key or [▼] key,

and confirm by pressing “SEL”.

Table 5.15-16 List of set value

Set value Explanation

Initial value

(Default setting)

Operation continues when this alarm signal is
generated.
Operation is stopped when this alarm signal is
generated.

○

Changing of water leakage Setting and checking

31. Press the [SEL] key once.

The set screen of the changing of water leakage is displayed on the digital display.

PV

SV

32. Select the changing of water leakage from the table below with [▲] key or [▼] key, and

confirm by pressing “SEL”.

Table 5.15-17 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the water leakage option is OFF.
Operation continues when this alarm signal is
generated.
Operation is stopped when this alarm signal is
generated.

○

Changing of electric resistivity rise Setting and checking

33. Press the [SEL] key once.

The set screen of the changing of electric resistivity rise is displayed on the digital
display.

PV

SV

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.15 Alarm customize function

5-45

34. Select the changing of electric resistivity rise from the table below with [▲] key or [▼]

key, and confirm by pressing “SEL”.

Table 5.15-18 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the DI option is OFF.
This alarm signal is not detected.

Operation continues when this alarm signal is
generated.

○

Changing of upper limit of electric resistivity rise Setting and checking

35. Press the [SEL] key once.

The set screen of the changing of upper limit of electric resistivity rise is displayed on the
digital display.

PV

SV

36. Select the changing of upper limit of electric resistivity rise from the table below with [▲]

key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-19 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the DI option is OFF and changing
of Upper limit of electric resistivity rise is OFF.

to

Sets Upper limit of electric resistivity rise.
Set unit is 0.1MΩ･cm unit.

Changing of electric resistivity drop Setting and checking

37. Press the [SEL] key once.

The set screen of the changing of electric resistivity drop

is displayed on the digital

display.

PV

SV

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.15 Alarm customize function HRS Series

5-46

38. Select the changing of electric resistivity dropfrom the table below with [▲] key or [▼]

key, and confirm by pressing “SEL”.

Table 5.15-20 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the DI option is OFF.
This alarm signal is not detected.

○

Operation continues when this alarm signal is
generated.

Changing of lower limit of electric resistivity drop Setting and checking

39. Press the [SEL] key once.

The set screen of the changing of lower limit of electric resistivity drop is displayed on
the digital display.

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SV

40. Select the changing of lower limit of electric resistivity drop from the table below with

[▲] key or [▼] key, and confirm by pressing “SEL”.

Table 5.15-21 List of set value

Set value Explanation

Initial value

(Default setting)

Setting/checking are not available if the
setting of the DI option is OFF and changing
of lower limit of electric resistivity drop is OFF.

to

Sets lower limit of electric resistivity drop.
Set unit is 0.1MΩ･cm unit.

How to monitor the temperature alarm Setting and Checking

41. Press the [SEL] key once.

Setting screen of the temperature alarm monitoring method is displayed on the digital
display.

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SV

HRX-OM-M090

Chapter 5 Display and setting of various functions

HRS Series 5.15 Alarm customize function

5-47

42. Select temperature alarm monitoring method from the table below with [▲] key or [▼]

key, and confirm by pressing “SEL”.

Table 5.15-22 List of set value

Set value Item Explanation

Initial value

(Default setting)

Continuous
monitoring

Alarm monitoring starts at the same time as
operation starts.

○

Automatic
monitoring

When the circulating fluid temperature is
outside of the alarm threshold range at the
time of operation start, the alarm will not be
generated until the temperature comes
inside the alarm threshold range.

Monitoring start
timer

Alarm will not be generated until it reaches
the time set for the AS.22 "Monitoring start
timer" after the operation starts.
Alarm monitoring starts when it reaches the
set time.

Automatic
monitoring +
Monitoring start
timer

Alarm will not be generated until it reaches
the time set for the AS.22 "Monitoring start
timer" after the operation starts.
Alarm monitoring starts when it reaches the
set time.
When the circulating fluid temperature
enters the alarm threshold range before it
reaches the set time, the alarm monitoring
will be started at that time.

∗ Settings of this function and example of alarm generating timing for 5.15.3 "Setting of temperature alarm

monitoring method and generation timing".

Monitoring start timer Setting and Checking

43. Press the [SEL] key once.

Setting screen of the monitoring start timer is displayed on the digital display.

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44. Select monitoring start timer from the table below with [▲] key or [▼] key, and confirm

by pressing “SEL”.

Table 5.15-23 List of set value

Set value Explanation

Initial value

(Default setting)

Setting and checking are impossible when "0:
Continuous monitoring" or "1: Automatic
monitoring" is selected for the setting of AS21
"Temperature alarm monitoring method".

○

to

Sets the time when alarm monitoring starts
Setting unit is 1 minute.

∗ Settings of this function and example of alarm generating timing for 5.15.3 "Setting of

temperature alarm monitoring method and generation timing".

HRX-OM-M090

Chapter 5 Display and setting of various functions

5.15 Alarm customize function HRS Series

5-48

Range over detection timer; Setting and Checking

45. Press the [SEL] key once.

Setting screen of the range over detection timer is displayed on the digital display.

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46. Select range over detection timer from the table below with [▲] key or [▼] key, and

confirm by pressing “SEL”.

Table 5.15-24 List of set value

Set value Explanation

Initial value

(Default setting)

to

Sets time from detecting the alarm to
generation of the alarm.
Setting unit is 1 second.

∗ Settings of this function and example of alarm generating timing for 5.15.3 "Setting of

temperature alarm monitoring method and generation timing".

47. Press the [MENU] key once.

Return to the main screen (screen displaying the circulating fluid temperature).

PV

SV