EYELA PSL-1810 User manual

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Equipped with
magnetic stirrer
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Low Temperature
Thermostatic Water Tank $%
Tokyo Rikakikai Co., Ltd.

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Contact with parts other than specified during
operation or improper use of the PSL-1810 may
result in unintended injury.
However, if you know such risks in advance, you can
avoid most of accidents.
Therefore, important safety information on matters to
be noted is defined as follows and indicated with the
following alert symbols and signal words. Be sure to
follow these instructions and use the PSL-1810
safely.
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Though we have given consideration to possible hazards during use of the PSL-1810, it is very
difficult to anticipate all hazards. Therefore, precautions described in this manual does not cover
all hazards.
However, if you follow the instructions in this manual, you can operate the PSL-1810 and
perform your tasks more safely.
Be sure to use the PSL-1810 with special care to avoid accidents and product failure.
Alert Symbols
Signal Words Definition
Indicates a potential hazardous situation in which mishandling
will result in death or serious injury of the user.
Indicates a potential hazardous situation in which mishandling
will result in minor or moderate injury of the user or damage
to the PSL-1810 or property.
WARNING
CAUTION
Indicates an imminently hazardous situation in which
mishandling will result in death or serious injury of the user.
DANGER

•If warning labels become not legible due to damage on them, replace them with new ones.
Contact us for spare labels.
From among warning matters, specifically important
matters are labeled on the PSL-1810. The location of
warning labels is shown below. Check the warning
contents carefully before use.
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Do not touch
the cooling fin
with bare hand
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Use flammable or
combustible liquids
with great care.

Before installation, check the type and amount
of components.
1. For Safe Use
2. Product Description
2 - 1 Intended Use
2 - 2 Specification
2 - 3 Cooling/Heating curve (for reference)
2 - 4 Options
2 - 5 Name of Each Part
3. Names and Functions of Operating Parts
3 - 1 Control Panel
3 - 2 Running Modes
3 - 3 User Parameter Setting
3 - 4 Safety/Alarm Functions
4. Installation
4 - 1 Environment
4 - 2 Condition
4 - 3 Installation
4 - 4 Connection of Utility
Introduction
This instruction manual describes procedure of
installation, operation, troubleshooting,
maintenance/check, and disposal of Low
Temperature Thermostatic water tank with
Magnetic Stirrer, Model PSL-1810.
Before use, be sure to read and understand
this manual.
Thank you very much for purchasing our products.
5. Operation
5 - 1 Preparation
5 - 2 How to Operate
5 - 3 How to Set User Parameters
5 - 4 Installation of Specimen Container
5 – 5 Handling after Operation
5 – 6 How to Use Options
6. Troubleshooting
7. Maintenance/Check
7 - 1 Operation Check of Leakage Breaker
7 - 2 Cleaning and Care of PSL-1810
8. Disposal of PSL-1810
9. After-sale Servicing
Contents
Contents of Package
Stirrer (oval-shaped)
No. Name Amount
1PSL-1810 1
2Cover with shutter 1
3Stirrer (oval-shaped) 1
4Instruction Manual 1
Cover with shutter

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Do not touch the cooling fin with bare hand during maintenance.
Because the cooling fin is sharp, if you touch it, your hand may be injured.
Do not touch the cooling fin with bare hand.
Use flammable or combustible liquids with great care.
If flammable or combustible liquids (methanol, etc.) are left at above room
temperature (or at lower temperature for certain liquids), they are vaporized
and may result in ignition or combustion due to any ignition source.
Before use, be sure to let fresh air into the room and make sure that the room
is well-ventilated.
CAUTION
WARNING
Because the APSL-1810 is not explosion-proof, use it safely with a great care.
Cooling fin

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Do not modify the product.
Use the product for the intended purpose only.
If you modify the product or use it for
purposes other than the intended,
it may result in electric shock or failure.
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The PSL-1810 is a low temperature thermostatic
water tank for organic synthesis experiment,
stirring inside of the tank with strong magnet,
rotating the stirrer in the specimen container in
synchronization with the stirring, and keeping the
temperature of specimen constant.

Leakage/Overcurrent Protection Breaker, Overheat Protector Solely for
Heater (fixed at one point)
High Pressure Switch for Freezer, Overload Relay Holding Circuit
Float Switch
Self-diagnosis Function
䠄heater open, sensor failure, temp. upper/lower limit alarm, SSR failure,
motor failure, memory error, power failure alarm, water level lowering)
Freezer Protection Timer
Safety
Functions
Digital setting with sheet key
Digital LED indication (the smallest digit: 0.1 Υ)
Switchable indication of set/measured temperature
Temp. setting/
indication
PID Control with microcomputer, no contact, zero-crossing output
Temp. Control
Method
Function
100 to 800 rpmRPM range
Within 㼼1.0 Υ(at the center of tank)
-80.0 to 0.0 Υ*2
Temp. Control
Range
Perform-
ance
*1
PSL-1810Model
Product
Rotation setting/
indication
Additional
Functions
User-adjustable mode (correction of indicated temperature, setting
for recovery from power failure, temp. upper/lower limit alarm)
Automatic start/stop function
Level adjuster
Options 䞉Clamp for small container 䞉Pole for stirrer
䞉Test-tube Holder 䞉Heat-extracting cover
䞉Cover for heat isolation during 䡡Clamp set
continuous operation
Time setting/
indication
Digital setting with sheet key
Digital LED indication (the smallest digit: 1 minute)
Switchable indication of set/measured time
Low Temperature Thermostatic water tank with Magnetic Stirrer (Low Temp. Pair Stirrer)
Temp. Control
Accuracy
Digital setting with sheet key
Digital LED indication (the smallest digit: 1 rpm)
Switchable indication of set/measured rpm

Air-cooling type Power 450 䠳 㽢 2
Refrigerator/
Coolant
Platinum Resistance Thermometer: Pt 100 
Thermosensor
Type-T Thermocouple SensorTemp. sensor
Electronic Digital Setting/Indication
Rotation/Temp.
regulator
Com-
ponents 450 䠳(sheathed heater, SUS316)
Heater
Total capacity: About 4 liters, net volume: about 3
liters, vacuum heat isolation, SUS304
water tank
SUS304Cooling coil
Neodymium magnet
Magnet in the
tank
Speed Control Motor (Power: 25 䠳)Stirrer Motor
Neodymium magnet
Magnet of Motor
20 mm dia. oval-shaped
Stirrer in
container
530 (W) 㽢450 (L) 㽢522 (H) mm
Outer Dimension
*3
Power Supply
About 74 䡇䡃
Operating Ambient Temp. 5 to 35 Υ
Stand-
ards
Weight
Dimension of
the tank
Type of Container
Used
190 mm dia. 㽢154 mm height
Usable Dimension of
the tank
130 mm dia. 㽢105 mm height 䠄Dia. of Opening with shutter
cover opened: 100 mm䠅
Neck dia. of
Container Used 20 to 85 mm
AC220V 50Hz 7A 1.5kVA
&1. Conditions
䞉For performance, the values are based on the following conditions: room temperature at 20 Υ;
AC 220 V 50Hz; stirring in the tank at 800 rpm; coolant is ethanol (about 99.5 % of purity).
䞉At room temperature of 35 Υ, the reached cooling temperature is -78 Υunder above conditions.
䞉The reached cooling temperature, accuracy of temperature adjustment, and rpm vary with operating
conditions such as supply voltage, type of coolant, heat load, and room temperature, etc.
They may not fall within this range due to other operating conditions.
䞉We recommend continuous operation should be limited to one week (168 hours) to keep
the performance (to avoid adverse effect by mixture of moisture and heat transfer media, and adhesion
of frost).
2. Temperature adjustment (operating) range is -80 to 0 Υ, but you can set the upper limit up to +20 Υ
for heating.
䞉Because the refrigerator does not operate at the set temperature of 0.1 to 20 Υ(except for certain
conditions),
the temperature cannot be well controlled. Set to this range for heating purpose only.
䞉Make sure that the temperature is set below the room temperature. Otherwise, liquid such as ethanol
will be volatilized.
3. Dimension does not include protrusions.
Pear-shaped sample flask, conical flask, rounded reaction container, separable flask,
having maximum capacity of 300 mL
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䞉For performance, the data is based on the following conditions: AC220V 50Hz; stirring
in the tank at 800 rpm; coolant is about three liters of ethanol; cover with shutter is used.
䞉The refrigerator was not warmed up.
If the refrigerator is operated under cold condition, its cooling capacity is inconsistent immediately
after the cooling is started.
Because the specified cooling capacity is achieved as the warming up goes on, time to cool
may be a little different.
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䞉Reached cooling temperature, time to heat/cool may vary with operating conditions
such as supply voltage, type of coolant, heat load, stirring in the tank at room
temperature, space for installation.
䞉At room temperature of 35 Υ, the reached cooling temperature is -78 Υ.
䡡If ethanol (or methanol) is used for long time, it absorbs moisture and the performance
may not be able to be kept at low temperature. Replace with fresh liquid regularly.
䡡The APSL-1810 can switch its cooling capacity and performs cooling and temperature control.
䞉During the cooling process, the cooling capacity is switched at certain temperature before
the set temperature is reached. In this case, you will hear a sound from solenoid valve, and
if the room temperature is high, the temperature may temporarily rises. The liquid will be
cooled down as the time passes.
䡡In case of heating within the range of temperature adjustment, if the set value is 50 Υ
higher than the present temperature, the refrigerator will be turned off. However, if it is not,
the heating goes on with the refrigerator turned on.
䞉In case of temperature setting at which the refrigerator is on, the heating curve will be different from
above.
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At room temperature of 35 Υ
At room temperature of 20 Υ
At room temperature of 20 Υ

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䖃Clamp for container of small capacity
Capable of clamping a container with net diameter of
10 to 40mm.
䖃Test Tube Holder
Capable of holding up to nine 10 to 18 test tubes.
䖃Pole for Stirrer
Used for fixing stirrer Z/NZ series and you can mount it on the left or
right side. You cannot mount and use clamp (small), etc. on this pole.
No. Name Qty Code No.
Clamp for container of small
capacity 1 182760
No. Name Qty Code No.
1 Test Tube Holder 1 212300
䖃Clamp set
Used as supplement to standard clamp for fixing unstable
instrument such as circulation tube as well as for fixing
small stirrer CPS.
No. Name Qty Code No.
1 Pole 1
229320
2 Fixing flange 1
3 Clamp (small) 1
4 Muff (ZC clamp) 1
No. Name Qty Code No.
1 Pole fastener 1 229310
2 Pole 1
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Stirrer is not enclosed in the
package. It needs to be
purchased separately.

䖃Heat Isolating Lid for Continuous Operation
After use of the APSL-1810, slight opening may still exist
even though the cover with shutter is closed.
During operation at low temperature, the water tank will
be frosted or the coolant will absorb moisture.
This lid can prevent from frost on the water tank and
absorption of coolant during stand-by condition.
* It can be used for cover with shutter for PSL-1400.
No. Name Qty Code No.
1Heat Isolating Lid for Continuous
Operation 1227220
䖃Cover for Heat Exhaust
Heat is exhausted from the right side of the APSL-1810.
If you use two units of APSL-1810 side by side, one unit
sucks hot exhausted air from the other and cooling
performance of the former unit is degraded.
With cover for heat exhaust, hot air is exhausted from
rear or top of the unit and degradation of cooling
performance is mitigated.
No. Name Qty Code No.
1 Cover 1 229350
2 Fixing screw 4
䖃Standard Clamp Set
Capable of fixing a container with net diameter of 20 to
85 mm.
No. Name Qty Code No.
1 Standard clamp 1 182850
Mounted on the cover with shutter
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Control panel
Power switch
Cover for drain
Power supply cord
Exhaust
Cover with shutter
Ventilation cover
Suction
Exhaust
Level adjuster
(Four provided)
Rubber
foot
(Four
provided)
Grip
Leakage
breaker
Air filter
Clamp
Arbor
drain cap
Top view
Rear view

In the water tank
Holder cover
Cooling coil
Float switch
Strainer
Sensor for
prevention of
excessive temp.
rise Sensor for temperature
control
Heater
You can attach the holder
cover with three hooks fitted
into the heater ring.
Just pull out and you can
remove the holder cover.
Holder cover removed
Stirrer in the tank
Strainer
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Magnet (stirrer in the tank)
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Hook
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Rulon bearing
Stirrer in the tank
* Nonferrous materials used for outer parts are: ABS (corners of top plate of water tank); Rigid Vinyl
Chloride (cover with shutter); polyacetal (drain cap, clamp, cover fixing part); chroloprene rubber
(cover with shutter, top of water tank); silicon rubber (drain hose); polypropylene (air filter), etc.
These plastic or rubber parts are likely to be deformed, discolored, or damaged by heat, light
(ex. direct sunlight), solvents (ex. anti-freeze solution, cleaning agent), or force (impact).
Be careful for handling them.

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Over Heat
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Set Run
Stop
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Temperature
Rotation
Time
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On
Off
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ս
վ
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No. Name Function
ձPower Switch ࣭Switches ON and OFF the unit
ղTemperature indicator
࣭Normally indicates the measured temperature. It blinks while setting
the temperature.
࣭Indicates alarm message when any error occurs (except for Motor Trouble).
࣭Indicates characters of parameter to be set while setting user parameters.
ճStirrer Rotation Indicator
࣭Normally indicates rotation during measurement. It blinks while setting the rpm.
࣭Indicates alarm message in case of Motor Trouble alarm.
࣭Indicates set values (figures, characters) while setting user parameters.
մTimer
࣭Normally indicates the set time. It blinks while setting the time.
* It goes off during stop of control in case of operation with specified time.
While being controlled, totaled time of stirrer operation is added and
indicated (cleared by stopping the control)
* Indicates the remaining time while being controlled with Auto Start and
automatic stop.
* During the measurement of time, “Point LED” blinks.
࣭It goes off while setting user parameters.
յRun/Stop key
࣭Run and stop the control.
* While setting user parameters, the values being edited are memorized and
parameters are fed back.
նSet key
࣭Whether or not being controlled, when this key is pressed, set temperature
indication will appear. When setting, the values being edited are memorized
and set items are fed forward.
࣭If you press this key while the control is stopped (within 3 seconds), you can set
each running mode.
࣭If you press this key for more than three seconds while the control is stopped,
you can set user parameters.
* While setting user parameters, the values being edited are memorized and
parameters are fed back.
շUP key
࣭Usable only in setting
Figure: The number increases one by one with one press. If you keep pressing,
it continuously increases.
Character: Character changes per each press.
Point
LED

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No. Name Function
ոDOWN key
࣭Usable only in setting
Figure: The number decreases one by one with one press. If you keep pressing,
it continuously decreases.
Character: Character changes per each press.
չMode key
Stirrer Restart key
࣭While the control is stopped, if you press this key, running mode is switched
in turn as follows: “Normal”” ”Auto Start””Auto Stop”
࣭If you press this key during each setting, all changed values are memorized and
the setting is finished and setting screen appears again.
* If you press this key while setting user parameters, the values being edited are
memorized and measurement indication will appear again.
࣭While being controlled, press this key to stop or restart the stirrer.
* You can use this key, for example, when the stirrer for sample came off (out of
control).
պHeater LED ࣭Lights up when the heater output is ON.
ջRefrigerator LED ࣭Lights up when the refrigerator output is ON.
ռNormal mode LED ࣭Displays “Operation with set value” is selected for running mode.
* It lights up when the control stops, and blinks when the control starts.
սAuto Start LED ࣭Displays “Auto Start” is selected for running mode.
* It lights up when the control stops, and blinks when the control starts.
վAutomatic stop LED ࣭Displays “Automatic stop” is selected for running mode.
* It lights up when the control stops, and blinks when the control starts.
տOverheat Protector
Operating Lamp ࣭Lights up when overheat protector in the tank operates.
* If you do not press any key for more than one minute during the setting of “Temperature”,
“Rotation”, or “Time”, the values being edited are memorized and measurement indication will
appear again.
* When power failure alarm is activated, press any key of from յto չ.
You can clear the alarm indication.
You can reduce the running time during stand-by status before and
after use of the unit to save energy.

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Normal mode (operation in specified value)
Temp.
Time
No. of Stirring
Time
Normal mode (operation in specified time)
Auto Start mode
Auto Stop mode
[Mode] key
[Mode] key
[Mode] key
Auto Start mode
Temp.
Time
No. of Stirring
Time
V
 
Set the temperature and rotation.
Immediately after pressing [Run/Stop] key, the unit runs
at specified temperature and rotation.
* While running, you can stop rotation and restart by
[Mode] key.
* While running, timer indicates totaled rotating
time in hour (one to 9999 hours)
* If you stop running with [Run/Stop] key, totaled rotating
time is cleared.
Set the temperature, rotation, and stand-by
time (for temperature and rotation,
the procedure is as same as that of Normal
mode). After the unit starts running by
pressing [Run/Stop㹛key, there is no control
during the stand-by time and the unit runs at
specified temperature and rotation after
the stand-by time elapses.
* You can set the stand-by time from one
minute to 99 hours 59 minutes.
* The remaining time is indicated during
the stand-by time.
* Running mode is switched to Normal mode.
You can select from three running modes (Normal,
Auto Start, Automatic Stop) to meet your need.
Set the mode on control panel. Even during the
running, you can change the set temperature, set
rotation, set time and suspend the running.
For more details of setting procedures, refer to P.24,
“5-2-1. Setting, Running, and Stop of Normal Mode”,
“5-2-2. Setting, Running, and Stop of Auto Start
Mode”, and “5-2-3. Auto Stop mode” from “5-2 How
to Operate”.
Press [Mode] key to switch the running mode
before running (if you press [Mode] key while
running, the rotation of stirrer is suspended).
Auto Stop mode
Temp.
Time
No. of stirring
Time
V
Set the temperature, rotation, running time
(for temperature and rotation, the procedure
is as same as that of Normal mode).
After the unit starts running by pressing
[Run/Stop] key, the unit is controlled with temperature
and rotation, and the control is
finished after the running time elapses.
* You can set the stand-by time from one
minute to 99 hours 59 minutes.
* The remaining time is indicated during
the stand-by time.
* Running mode is switched to Normal mode
while the unit stops.

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Correction of Temp. Indication “CS ”
Priority mode “PrEF”
Power Failure Detection “PCtL”
Auto Tuning “At ”
[Set] key
[Set] key
[Set] key
[Set] key
User Lock “ULoC”
[Set] key
[Run/Stop] key
[Run/Stop] key
[Run/Stop] key
[Run/Stop] key
[Run/Stop] key
 
From among four adjusting functions, “Correction of
Temp. Indication”, “Priority mode”, “Power Failure
Detection”, and “Auto Tuning”, you can use the
three functions except for “Priority mode”.
If you press [Set] key for three seconds while the
unit stops, User Parameter Setting screen appears.
During User Parameter Setting, if you press [Mode]
key, the value being changed is fixed and the mode
returns to Measurement mode.
* You need to release User Lock in user parameters
to change the setting of each function (see next
clause).
* For details of operation, see P.33 “5-3. How to Set
User Parameters”
1. Correction of Temp. Indication "CS"
You can adjust the measurement temperature
indication to that of standard thermometer, etc. If
you add to the indicated value, enter a positive
value, and if you reduce from the indicated value,
enter a negative value.
Indicated temperature 㸻Measured temp. 㸩temp.
correction
یRange of correction to be set: -10.0 to 10.0 deg.C
* Factory pre-set value: 0.0 deg.C
[Retained in case of power interruption]
2. Priority mode “PrEF”
This mode is not used for PSL-1810.
You do not need to change the factory pre-set value.
*Even if you change setting, it does not effect on
operation of the unit.
*Factory pre-set value: tImE
[Retained in case of power interruption]
3. Power Failure Detection “PCtL”
In case of power failure during operation, it operates
according to “Power Failure Detection” when
recovered.
یCont: Operation continues from the status
immediately before power failure.
یoFF: Recovered in Normal mode, and operation
stops.
یon:The timer counts from the beginning again,
and operation restarts.
*Factory pre-set value: Cont
[Retained in case of power interruption]
*1
*1 This function is not used for PSL-1810.
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4. Auto Tuning “At”
Temperature is PID-controlled and most suitable
PID constant is set before the shipment from the
factory. Nevertheless, the control may be disturbed
a little. In such case, you can use this function to
achieve PID constant suitable for that condition.
You can also set it back to the factory-preset value.
یoFF : Auto Tuning is off.
یon 㸸Setting for start of Auto Tuning.
* After tuning, [oFF] is indicated.
یcLr : The setting is back to factory-preset value.
[In case of power interruption, oFF is indicated]
5. User Lock “ULoC”
This is a function to avoid incorrect setting of user
parameters.
In order to change user parameters, change the
setting from [LoCk㹛to [oPEn].
یLoCk: Attempt to change the setting is denied.
یoPEn: You can change the setting.
* When you finish the setting of user parameters,
the status automatically shifts to [LoCk].
[In case of power interruption, oFF is indicated]
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Because most suitable PID constant
is pre-set, do not use Auto Tuning.
If it is not avoidable, use it at
operating temperature range of -80
to 0 deg.C.
ەUse it in Normal mode.
ەDo not use at the setting range
of 0.1 to 20 deg.C.
ەDo not use under loaded condition.
ەAccuracy of temperature
adjustment is s1.0 deg.C. Do not
use within this range.

Safety Functions
This product is provided with the following
safety/alarm functions.
When trouble occurs, refer to P.43
”Troubleshooting” and take immediate measures.
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Indication when overheat protector is activated and how to recover
Alarm title Operation How to recover
Overheat
protector for tank
LED status
࣭Overheat lamp lights up.
࣭Heater and refrigerator stop (indication remains
controlled status). Stirrer continues operation.
* Depending on the setting, “Heater Open alarm” or
“Upper Limit Temp. alarm” may be displayed.
In such case, overheat lamp remains lighting up.
Deactivate the alarm by turning
OFF the power switch and
turning it ON again (you can
deactivate only when the
temperature in the tank is below
40 deg.C).
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Over Heat
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Set Run
Stop
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Temperature
Rotation
Time
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Off
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Lighting up
Safety Device Operation Cause of operation
Leakage breaker The power is shut off. ࣭Leakage or overcurrent.
Refrigerator high
pressure switch
While the refrigerator runs, if the high
pressure becomes abnormal, alarm
lamp lights up and the indicator
indicates “oVL”, and refrigerator and
heater stop.
࣭Operating ambient temperature exceeds 35 deg.C.
࣭Thermal load exceeding the cooling capability
caused temperature rise in the tank.
࣭Refrigerator fan does not rotate.
࣭Dust adheres on air filter.
࣭Incorrect use of temperature indication correction.
࣭Supply voltage fluctuation exceeds the rating
(s10㸣).
Overload relay for
refrigerator
When the refrigerator runs under
overload (overheat) condition, alarm
lamp lights up and the indicator
indicates ” oVL” , and refrigerator and
heater stop.
࣭Causes of operation for refrigerator high pressure
switch as mentioned above, and overloaded
operation (start) of refrigerator.
࣭Supply voltage fluctuation exceeds the rating
(s10㸣).
Overheat protector
for tank
When the temperature in the tank
exceeds the value set for overheat
protector (40 deg.C), refrigerator and
heater stop.
࣭Heater was kept energized, because temp.
regulator was out of control or by ON failure of
Heater SSR.
࣭Increased from low temperature while the stirrer
stopped (set to “0rpm” or stopped by Stirrer
Restart key).
Memory error Control board fails and the control
stops.
࣭Operating ambient temperature exceeds 35 deg.C.
࣭Influenced by noise, etc.
For details of display of each alarm, refer to the
following pages:
P.15 “Heater Open alarm”
P.17 “Upper Limit Temp. alarm”

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Alarm title Alarm display and operation Causes of alarm operation
Level Alarm ࣭Buzzer sounds for 15 seconds.
࣭Heater output stops. Control of refrigerator and
stirrer continues.
࣭Indicator displays alarm message.
Operating conditions
࣭Liquid level in the tank is low.
Deactivation of alarm
࣭Automatically deactivated when
the liquid level exceeds the
specified level.
* If level alarm is activated while
the liquid level is enough, try to
rotate and stop the stirrer.
The alarm may be deactivated.
Refrigerator alarm ࣭Buzzer sounds for 15 seconds.
࣭Refrigerator/heater output stops. Control of stirrer
continues.
࣭Indicator displays alarm message.
Operating conditions
࣭Refrigerator protection device
(overload relay or high pressure
switch) is functioning.
Deactivation of alarm
࣭Press ”Run/Stop” key to stop
the control, and turn ON
the power again.
SSR Error alarm ࣭Buzzer sounds for 15 seconds.
࣭Control of refrigerator and heater stops. Control of
stirrer continues.
࣭Indicator displays alarm message.
Operating conditions
࣭ON-break of SSR for heater.
Deactivation of alarm
࣭Press ”Run/Stop” key to stop
the control, and turn ON
the power again.
Heater Open alarm ࣭Buzzer sounds for 15 seconds.
࣭Control of refrigerator and heater stops. Control of
stirrer continues.
࣭Indicator displays alarm message.
Operating conditions
࣭Heater is open.
࣭OFF-break of SSR for heater.
࣭Overheat protector for thank is
functioning.
In this case, overheat lamp lights
up.
Deactivation of alarm
࣭Press ”Run/Stop” key to stop
the control, and turn ON
the power again.
Alarm functions
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Stop
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Temperature
Rotation
Time
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Set Run
Stop
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Temperature
Rotation
Time
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Set Run
Stop
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Temperature
Rotation
Time
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Set Run
Stop
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Alarm title Alarm display and operation Cause of alarm
Temp. Sensor
alarm
࣭Buzzer sounds for 15 seconds.
࣭Refrigerator/heater output stops. Control of stirrer
continues.
࣭Indicator displays alarm message.
Operating conditions
࣭Temp. sensor is disconnected.
Deactivation of alarm
࣭Press ”Run/Stop” key to stop
the control, and turn ON
the power again.
Motor Trouble
alarm
࣭Buzzer sounds for 15 seconds.
࣭Rotation control stops. Control of refrigerator and
stirrer continues.
࣭Indicator displays alarm message.
Operating conditions
࣭Failure of motor (locked).
Deactivation of alarm
࣭Press ”Run/Stop” key to stop
the control, and turn ON
the power again.
Power Failure
alarm
࣭Buzzer sounds for 15 seconds.
࣭Control continues or stops according to setting for
recovery from power failure.
* Example shown below is “control continued”.
࣭Indicator displays alarm message.
Operating conditions
࣭Power failure occurred during
control (refrigerator/heater
output).
࣭Power was shut off without
stopping refrigerator/heater
output.
Deactivation of alarm
࣭Alarm display can be deactivated
by pressing any key.
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Set Run
Stop
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Temperature
Rotation
Time
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Set Run
Stop
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Temperature
Rotation
Time
Heating
Refrigerator
Mode
Auto Start
Auto Stop
Normal
Stirrer Restart
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Set Run
Stop
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Temperature
Rotation
Time