VWR Professional Series User manual

VWR Professional Series Instruction Manual
Hotplate-Stirrers
E
N
EN

Professional Series EN-1
Table of Contents
1.INTRODUCTION ................................................................................................................................................... 2
1.1.Safety Information ..................................................................................................................................... 2
1.1.Consignes de sécurité .............................................................................................................................. 3
1.2.Intended Use ............................................................................................................................................. 3
1.3.Package Contents ..................................................................................................................................... 4
1.4.Installation ................................................................................................................................................. 4
1.5.Overview ................................................................................................................................................... 5
1.5.1Dimensions ........................................................................................................................................... 5
1.5.2Device Setup ......................................................................................................................................... 7
1.5.3Display (All Units) .................................................................................................................................. 9
2OPERATION ....................................................................................................................................................... 10
2.1Getting Ready ......................................................................................................................................... 10
2.2Standby Mode ......................................................................................................................................... 10
2.3Controlling the Stirrer .............................................................................................................................. 11
2.4Controlling the Top Plate Heater ............................................................................................................ 12
2.5Controlling the Timer ............................................................................................................................... 14
2.6Using the External Probe ........................................................................................................................ 16
2.7The Settings Menu .................................................................................................................................. 17
2.7.1Accessing / Exiting .............................................................................................................................. 17
2.7.2Features .............................................................................................................................................. 17
2.7.3Structure & Defaults ............................................................................................................................ 18
2.8Using the Temperature Limitation Feature ............................................................................................. 19
2.9Using the Single Point Calibration Feature ............................................................................................. 20
2.10Enabling / Disabling the Beeper ............................................................................................................. 24
2.11Changing the Timer Start Setting ........................................................................................................... 25
2.12Changing the Power Recovery Setting ................................................................................................... 26
2.13Reset to Factory Default Settings ........................................................................................................... 28
3MAINTENANCE .................................................................................................................................................. 30
3.1Troubleshooting ...................................................................................................................................... 30
3.2Service Information ................................................................................................................................. 30
4Environmental Conditions ................................................................................................................................... 31
5Standards and Regulations ................................................................................................................................. 32
5Normes et Règlements ....................................................................................................................................... 33
6Replacement Parts .............................................................................................................................................. 35
DECLARATION OF CONFORMITY ......................................................................................................................... 357

Professional Series EN-2
1. INTRODUCTION
This manual contains installation, operation and maintenance instructions for the VWR Professional Series. Please
read the manual completely before using.
1.1. Safety Information
Safety notes are marked with signal words and warning symbols. These show safety issues and warnings. Ignoring
the safety notes may lead to personal injury, damage to the instrument, malfunctions and false results.
WARNING For a hazardous situation with medium risk, possibly resulting in severe injuries or death if not
avoided.
CAUTION For a hazardous situation with low risk, resulting in damage to the device or the property or in loss
of data, or minor or medium injuries if not avoided.
ATTENTION For important information about the product. May lead to equipment damage if not avoided.
NOTE For useful information about the product.
Warning Symbols
General
hazard
Caution, hot
surface
Electrical shock
hazard
Safety Precautions
WARNING! DO NOT use the Hotplate-Stirrer in explosive atmospheres or with materials that could
cause a hazardous environment from processing. Keep in mind the material flash point relative to the
target temperature that has been set. Also, the user should be aware that the protection provided by the
equipment may be impaired if used with accessories not provided by the manufacturer.
Always operate unit on a level surface for best performance and maximum safety.
DO NOT lift unit by the top plate.
CAUTION! To avoid electrical shock, completely cut off power to the unit by disconnecting the power
cord from the wall outlet. Disconnect unit from the power supply prior to maintenance and servicing.
Spills should be removed promptly after the unit has cooled down. DO NOT immerse the unit for
cleaning. Alkalis spills, hydrofluoric acid or phosphoric acid spills may damage the unit and lead to
thermal failure.
CAUTION! The top plate can reach 500°C, DO NOT touch the heated surface. Use caution at all times.
Keep the unit away from explosive vapors and clear of papers, drapery, and other flammable materials.
Keep the power cord away from the heater plate.
CAUTION! The rear panel of the 10x10-120V unit runs hot to the touch. Avoid contact during operation.
Allow unit to cool before touching the rear panel.
DO NOT operate the unit at high temperatures without a vessel/sample on the top plate.
DO NOT operate the unit if it shows sign of electrical or mechanical damage.
WARNING! Units are NOT explosion proof. Use caution when heating volatile materials.
Earth Ground – Protective Conductor Terminal. Protective earthing of the equipment is achieved via
connection of the provided power cord to a compatible grounded power outlet.
Alternating Current

Professional Series EN-3
1.1. Consignes de sécurité
Les consignes de sécurité sont signalées par des mots et des symboles d'avertissement. Elles présentent des
risques et des avertissements. Le non-respect des consignes de sécurité peut entraîner des blessures, des
dysfonctionnements, de faux résultats ou endommager l'instrument.
DANGER Pour une situation dangereuse à risque modéré qui, si elle n'est pas évitée, peut entraîner
des blessures graves ou la mort.
ATTENTION Pour une situation dangereuse à faible risque qui, si elle n'est pas évitée, peut endommager
l'appareil ou son environnement, causer une perte de données, ou entraîner des blessures
mineures ou modérees.
AVERTISSEMENT Pour des informations importantes sur le produit. Les ignorer peut endommager le produit.
REMARQUE Pour des renseignements utile sur le produit.
Symboles d’avertissement
Risque
général
Attention,
surface
chaude
Risque de
décharge
électri
q
ue
Précautions d'emploi
DANGER ! N'UTILISEZ PAS l'agitateur chauffant dans des atmosphères explosives ou avec des
matériaux dont le traitement pourrait produire un environnement dangereux. Gardez à l'esprit le rapport
entre le point d'éclair du matériau et la température cible qui a été déterminée. De plus, l'utilisateur doit
être conscient que la protection fournie par l'équipement peut être compromise s'il est utilisé avec des
accessoires non fournis par le fabricant.
Pour de meilleures performances et une sécurité maximale, utilisez toujours l'appareil sur une surface
de niveau.
NE PAS soulever l'appareil par la plaque chauffante.
ATTENTION ! Pour éviter tout choc électrique, couper complètement l'alimentation électrique de
l'appareil en débranchant le cordon d'alimentation de la prise murale. Débrancher de l'alimentation
électrique avant la maintenance et l'entretien.
Les déversements de liquide doivent être retirés rapidement après le refroidissement de l'appareil.
NE PAS immerger l'appareil pour le nettoyage. Les déversements d'alcalis, d'acide fluorhydrique ou
d'acide phosphorique peuvent endommager l'appareil et entraîner une défaillance thermique.
ATTENTION ! La plaque chauffante peut atteindre 500 °C, NE PAS toucher la surface chauffée. Faites
preuve de prudence à tout moment. Gardez l'appareil à l'écart des vapeurs explosives et des papiers,
des tissus et autres matériaux inflammables. Maintenez le cordon d'alimentation éloigné de la plaque
chauffante.
ATTENTION ! Le panneau arrière du modèle 10x10-120V peut devenir très chaud. Évitez tout contact
pendant le fonctionnement. Laissez l'appareil refroidir avant de toucher le panneau arrière.
NE PAS utiliser l'appareil à des températures élevées sans un récipient ou un échantillon sur la plaque
chauffante.
NE PAS utiliser l'appareil s'il présente des signes de dommages électriques ou mécaniques.
DANGER ! Les appareils ne sont PAS à l'épreuve des explosions. Soyez prudent lorsque vous chauffez
des matières volatiles.
Mise à la terre - Borne du conducteur de protection. La protection de l'équipement par mise à la terre est
réalisée par le branchement du cordon d'alimentation fourni à une prise compatible reliée à la terre.
Courant alternatif
1.2. Intended Use
The VWR Hotplate-Stirrers are intended for general laboratory use. Safety cannot be guaranteed if used outside of
the intended use.

Professional Series EN-4
1.3. Package Contents
• Hotplate-Stirrer
• Power Cord (pre-attached for 10x10-120V units)
• Stir Bar (40 x 8 mm)
• 8” (20.3 cm) Stainless Steel RTD Temperature Probe
• Instruction Manual
1.4. Installation
Upon receiving the VWR Hotplate-Stirrer check to ensure that no damage has occurred during shipment. It is
important that any damage that occurred in transport is detected at the time of unpacking. If you do find such
damage, the carrier must be notified immediately.
After unpacking, place the Hotplate-Stirrer on a level bench or table, away from explosive vapors. Ensure that the
surface on which the unit is placed will withstand typical heat produced by the unit and place the unit a minimum of
six (6) inches from vertical surfaces. Do not position the equipment such that it is difficult to disconnect the power
cord during use. Always place the unit on a sturdy work surface.
The Hotplate-Stirrer is supplied with a 3 conductor, grounded power cord that should be plugged into a matching
standard grounded outlet. If the cord supplied does not meet your needs, please use an approved power cord that
has ratings equal or exceeding those of the originally provided cord and that complies with the local/national
regulations of the country in which the equipment is to be used. Replacement of the plug must be made by a
qualified electrician.

Professional Series EN-5
1.5. Overview
1.5.1 Dimensions
7×7 Hotplate-Stirrer
Overall dimensions (L x W x H) 30.7 x 22.4 x 12.2 cm
(12.2 x 8.8 x 4.8”)
Top plate dimensions: 17.8 x 17.8 cm (7 x 7”)
Top plate material: Ceramic
Electrical (50/60 Hz): 120 volts ±10%: 10.0 amps: 1200 watts
230 volts ±10%: 6.0 amps: 1380 watts
Fuses: 10A time-delay, 5x20mm, 250VAC
Temperature range: Ambient +5° to 500°C
Temperature stability of top plate+: ± 1% > 100°C, ± 1°C ≤ 100°C
Temperature stability with temperature probe++: ± 0.5% > 100°C, ± 1°C ≤ 100°C
Temperature accuracy of top plate: ± 5°C (@100°C after SPC)
Temperature accuracy with temperature probe++: ± 0.5°C (@100°C after SPC)
Stir capacity: 10 L
Speed range: 60 to 1600 rpm
Speed stability: ± 2%
Weight capacity: Up to 18.1 kg (40 lbs)
Ship weight: 3.5 kg (7.8 lbs)
Note: + 2” diameter center of top plate
++ 800 mL of water in 1 L flask, 38 mm stir bar, 150 rpm and 50°C, 23°C ambient, 8” (20 cm) SS probe

Professional Series EN-6
10×10 Hotplate-Stirrer
Note: + 2” diameter center of top plate
++ 800 mL of water in 1 L flask, 38 mm stir bar, 150 rpm and 50°C, 23°C ambient, 8” (20 cm) SS probe
Overall dimensions (L x W x H) 42.2 x 28.6 x 12.2 cm
(16.6 x 11.25 x 4.8”)
Top plate dimensions: 25.4 x 25.4 cm (10 x 10”)
Top plate material: Ceramic
Electrical (50/60 Hz): 120 volts ±10%: 11.2 amps: 1344 watts
230 volts ±10%: 7.0 amps: 1610 watts
Fuses: 120 volts: 15A quick-acting, 6.3x32mm, 125VAC
230 volts: 10A time-delay, 5x20mm, 250VAC
Temperature range: Ambient +5° to 500°C
Temperature stability of top plate+: ± 1% > 100°C, ± 1°C ≤ 100°C
Temperature stability with temperature probe++: ± 0.5% > 100°C, ± 1°C ≤ 100°C
Temperature accuracy of top plate: ± 5°C (@100°C after SPC)
Temperature accuracy with temperature probe++: ± 0.5°C (@100°C after SPC)
Stir capacity: 13 L
Speed range: 60 to 1600 rpm
Speed stability: ± 2%
Weight capacity: Up to 22.7 kg (50 lbs)
Ship weight: 5.7 kg (12.6 lbs)

Professional Series EN-7
1.5.2 Device Setup
7×7 and 10×10-230V
A. Display Screen
B. Standby Indicator
C. Left Knob: Controls temperature and settings
menu
D. Right Knob: Controls speed and timer
E. External RTD Probe Port
F. Fuse
G. Power Entry Module (PEM)
H. Threaded Knob for Accessory Rod
I. Standby Switch
J. Feet: Not adjustable
E
F
G
H
I
J
A
B
C
D

Professional Series EN-8
10×10-120V
A. Display Screen
B. Standby Indicator
C. Left Knob: Controls temperature and settings
menu
D. Right Knob: Controls speed and timer
E. External RTD Probe Port
F. Power Cord
G. Threaded Knob for Accessory Rod
H. Standby Switch
I. Feet: Not adjustable
A
B
C
E
F
G
H
I
D

Professional Series EN-9
1.5.3 Display (All Units)
K. Heater Temperature: Switches to external probe
temperature when the probe is plugged in and U is
illuminated.
L. Heat Indicator: Illuminates when heater is running
M. Heat Setting
N. Stir Speed
O. Stirrer Indicator: Illuminates when stirrer is running
P. Speed Setting
Q. Temperature Priority Icon
R. Timer: Hours : Minutes/ Minutes : Seconds
S. Hot Top Caution Indicator: Illuminates when the
heater is ≥ 40°C.
T. Single Point Calibration Icon
U. External Probe Icon
V. Temperature Limit Icon

Professional Series EN-10
2 OPERATION
2.1 Getting Ready
To get ready:
1. Plug the female end of the provided power cord into
PEM (G) on the rear side of the unit.
Note: For the 10x10-120V unit, this end of the power
cord is fixed to the rear side of the unit.
2. Plug the male end of the power cord into a matching
standard grounded outlet.
3. The unit will beep once and the screen will illuminate
with three displays:
a) The first will display the unit type (left) and the
software version (right).
b) The second will display the unit’s electrical
power (left) and frequency (right).
c) The third will be the unit’s main operating
screen.
Note: If the third screen is blank and the red
standby indicator (B) to the left of the screen is
illuminated, the unit is in standby mode.
2.2 Standby Mode
1. The rocker switch (I) on the right side of the unit
controls standby mode.
2. When the unit is switched off:
a) All heating, stirring, and timing functions will
turn off.
b) The screen will be blank and the red standby
indicator (B) to the left of the screen will be
illuminated.
If the heater temperature is above 40°C, the
hot top caution indicator will remain
illuminated as well as the current top plate
temperature and “HOT”.
3. When the unit is switched on:
a) All heating, stirring, and timing functions will
remain off.
b) The main operating screen will return.
Previous heating, stirring, and timing settings
will be displayed.
c) The unit is ready for normal use.

Professional Series EN-11
2.3 Controlling the Stirrer
STIRRING OPERATING TIPS
The stirrer increases speed at a steady rate until the setpoint is reached. If the stirrer is not reaching its setpoint: 1)
the stir bar may be too large, 2) the liquid may be too viscous, 3) the setpoint speed may need to be reduced.
Additionally, the magnetic strength of stir bars reduce over time and may need to be replaced.
When heating and stirring a reaction vessel within an oil bath or similar set-up, the stirring function will stir up to
approximately one inch (2.5 cm) from the top plate. The stirring speed will vary according to liquid viscosity, spin
bar length, and distance from top plate. Adjust one or all of these to achieve the desired stirring speed. For
example: the closer the reaction vessel is to the top plate, the strong the magnetic connection between the unit and
the stir bar.
1. Rotate the right knob (D) to control the speed setting
(P).
a) Clockwise rotation will increase the speed
setting (P).
b) Counterclockwise rotation will decrease the
speed setting (P).
2. To turn on the stirrer, press and hold the right knob
(D) until the unit beeps and the Stirrer Indicator (O)
illuminates.
a) The unit will beep once to confirm the stirrer
has been turned on.
b) The Stirrer Indicator (O) will illuminate next to
the “RPM” symbol to indicate that the stirrer is
running.
c) The timer (R) will begin counting up from
00:00, or down from a set time.
d) The actual stir speed (N) will be displayed in
the top right region of the screen.
3. To change the speed setting while the stirrer is on:
a) Rotate the right knob (D) to the new speed
setting.
The speed setting (P) will blink to indicate that
the speed setting is not confirmed.
b) Briefly press the right knob (D) to confirm the
new speed setting.
The speed setting (P) will stop blinking once
the new setting is confirmed.
Note: If the speed setting (P) remains idle without
confirmation for 6 seconds, it will reset to the
current setting
4. To turn off the stirrer, press and hold the right knob
(D) until the unit beeps and the Stirrer Indicator (O)
disappears.
a) The unit will beep once to confirm the stirrer
has been turned off.
b) The Stirrer Indicator (O) next to the “RPM”
symbol will disappear to indicate that the
stirrer is off.
c) The timer (R) will reset back to 00:00 or the
previous timer setting.
If the heater is still running, then the timer will
continue to count.

Professional Series EN-12
2.4 Controlling the Top Plate Heater
1. Rotate the left knob (C) to control the heat setting
(K).
a) Clockwise rotation will increase the heat
setting (M).
b) Counterclockwise rotation will decrease the
heat setting (M).
2. To turn on the heater, press and hold the left knob
(C) until the unit beeps and the heater indicator (L)
illuminates.
a) The unit will beep once to confirm the heater
has been turned on.
b) The heater indicator (L) will illuminate next to
the “°C” symbol to indicate that the heater is
running.
c) The timer (R) will begin counting up from
00:00, or down from a set time.
d) The current heater temperature (K) will be
displayed in the top left region of the screen.
e) When the heater temperature (K) is above
40°C, the hot top caution indicator (S) will be
illuminated.
3. To change the heat setting (M) while the heater is
on.
a) Rotate the left knob (C) to the new heat
setting.
The heat setting (M) will blink to indicate that
the heat setting is not confirmed.
b) Briefly press the left knob (C) to confirm the
new heat setting.
The heat setting (M) will stop blinking once
the new setting is confirmed.
Note:
If the heat setting (M) remains idle without
confirmation for 6 seconds, it will reset to the
current setting.
4. To turn off the heater, press and hold the left knob
(C) until the unit beeps and the heater indicator (L)
disappears.
a) The unit will beep once to confirm the heater
has been turned off.
b) The heater indicator (L) next to the “°C”
symbol will disappear to indicate that the
heater is off.
c) CAUTION: This does not mean that the top
plate is safe to touch.
d) The timer (R) will reset back to 00:00 or the
previous timer setting.
e) Once the heater temperature (M) cools below
40°C, the hot top caution indicator (S) will
disappear.

Professional Series EN-13
HEATING OPERATING TIPS
Overshoot:
The unit may overshoot the temperature up to 10°C before stabilizing at the setpoint. The two methods to minimize
overshoot are:
1. Metal containers minimize overshoot. CAUTION! When heating metal containers on a ceramic top plate, it
is recommended to use the lowest temperature setting possible to limit thermal stress to the ceramic
top plate.
2. If a glass vessel is used, anticipate overshoot. Start with a temperature setpoint 5 to 10°C below the desired
temperature. When the temperature stabilizes at this lower setting, increase the heater to the final
temperature. Overshoot is then reduced to about 1°C.
The temperature display on the units show the actual temperature of the heater, not the top plate or the sample.
The vessel’s contents being heated may be at a lower temperature depending on the size and thermal conductivity
of the vessel. It may be beneficial to monitor the temperature of the vessel’s contents and adjust the setpoint
temperature accordingly. If you need precise control, use the VWR External Temperature Probe.
Typical Time to Boil Water
The chart below is an example of an approximate time to boil for the specified amount of water in a specific vessel.
These values are only approximate and can vary from unit to unit. Values are based on 23°C water in an ambient
environment of 23°C.
Unit Size Heater Temp. Limit Volume of Water Typical Time to Boil
7×7 500°C 1L in 2L Beaker ≈ 21 min
10×10 500°C 1L in 2L Beaker ≈ 25 min

Professional Series EN-14
2.5 Controlling the Timer
1. By default the timer (R) will be set to 00:00 and count
upwards when the heating or stirring functions are
turned on.
a) The timer (R) begins in MM:SS mode.
b) Once the timer reaches 59:59, it will
automatically switch to HH:MM mode at
01:00.
2. When the timer (R) is set to any time between 00:01
and 99:59, the timer (R) will count downwards from
the set time once the heating or stirring functions are
turned on.
a) The timer (R) can only be set in HH:MM
mode.
b) Once the timer (R) reaches 01:00 in HH:MM
mode, it will automatically switch to MM:SS
mode at 59:59.
c) Once the timer (R) reaches 00:00 in the
countdown mode:
All heating and stirring functions will shut off.
The unit will beep 3 times.
3. To change the timer setting (R), press and hold the
right knob (D) until the timer setting (R) displays
‘HH:MM’.
a) Continue to press the right knob (D) after the
unit beeps and the Stirrer Indicator (O)
illuminates.
The stirrer will not turn on unless the right
knob (D) is released before ‘HH:MM’ appears.
b) The timer setting (R) cannot be changed while
the heater or the stirrer are running.
c) The timer setting (R) will return to the
previous timer setting and the minutes setting
will begin to blink to indicate that it can be
modified.
d) The timer can only be set in HH:MM mode.
4. Rotate the right knob (D) to adjust the minutes
setting.
a) Clockwise rotation will increase the time.
b) Counterclockwise rotation will decrease the
time.
c) The minutes setting will continue to blink to
indicate the new timer setting is not
confirmed.
d) If the timer setting (R) remains idle without
confirmation for 6 seconds, the timer will
remain at the current setting and the unit will
exit the timer setting control.

Professional Series EN-15
5. Briefly press the right knob (D) to confirm the minutes
setting and begin changing the hours setting.
The minutes setting will stop blinking and the hours
setting will begin to blink to indicate that it can be
modified.
6. Rotate the right knob (D) to adjust the hours setting.
a) Clockwise rotation will increase the time.
b) Counterclockwise rotation will decrease the
time.
c) The hours setting will continue to blink to
indicate the new timer setting is not
confirmed.
d) If the timer setting (R) remains idle without
confirmation for 6 seconds, the timer will
remain at the current setting and the unit will
exit the timer setting control.
7. Briefly press the right knob (D) to confirm the hours
setting and exit the timer settings.
a) The hours setting will stop blinking.
b) The unit will be ready for normal use.
8. To clear the timer (R) to 00:00, press and hold the
right knob (D) to enter the timer setting, then press
and hold the right knob (D) again until the timer (R)
resets to 00:00.
a) This can only be performed while changing
the timer in the minutes or hours setting.
b) The unit will exit the timer setting control and
be ready for normal use.
00
:
00
HH:MM

Professional Series EN-16
2.6 Using the External Probe
1. Connect the VWR External Temperature Probe to
the external RTD probe port (E) on the rear panel
of the unit.
Once the VWR External Temperature Probe is
connected, the external probe icon (U) will
illuminate.
2. The temperature display (K) will now show the
temperature of the external probe instead of the
heater.
The hot top caution indicator (S) will still illuminate
once the heater temperature reaches 40°C.
Note: When using the VWR External Temperature
Probe, the temperature setpoint should be
adjusted to the desired sample temperature. If the
temperature setpoint is higher than the sample can
achieve, an E7 will occur (see Troubleshooting
section). Reduce sample volume or temperature
setpoint value. For Example: Water has a
theoretical temperature limit of 100°C (boiling). A
temperature setpoint greater than 100°C will cause
an E7 error.
3. If the VWR External Temperature Probe is inserted
into the external RTD probe port (E) while the
heater is running:
a) The heater will shut off.
b) The unit will display an E7 error.
c) The unit will beep 10 times.
d) All stirring functions will remain operational.
4. If the VWR External Temperature Probe is
removed from the external RTD probe port (E)
while the heater is running:
a) The heater will shut off.
b) The unit will display an E4 error.
c) The unit will beep 10 times.
d) All stirring functions will remain operational.
Note: To clear an E4 or E7 error code, flip the
standby switch (I) off and back on. The unit will be
ready for normal use.
30°C
40°C

Professional Series EN-17
2.7 The Settings Menu
2.7.1 Accessing / Exiting
1. To access the settings menu, press and hold the
left knob (C) until ‘MENU’ appears on the screen.
a) Continue to hold the left knob (C) after the
unit beeps and the heater indicator (L)
illuminates.
The heater will not turn on unless the left
knob (C) is released before ‘MENU’
appears.
b) The settings menu cannot be accessed
while the heater or the stirrer is running.
c) The “MENU” icon will appear briefly then
proceed to the top level of the settings
menu.
2. Rotate the left knob (C) to navigate the different
menu options and briefly press the left knob (C) to
select / enter / edit the displayed setting.
3. To exit the menu from the top level, rotate the left
knob (C) clockwise until the “EXIT” icon is
displayed and briefly press the left knob (C).
The unit will return to the main operating screen.
Note:
To exit the menu at any time, flip the standby
switch (I) off and back on. The unit will be ready
for normal use.
Turning off the unit will not reset / change the
settings.
2.7.2 Features
The top level of the settings menu has the following
features:
a) “TLIM” – Temperature Limit
Allows the user to change the maximum
temperature limit of the heater.
b) “CAL” – Single Point Calibration
Single Point Calibration (SPC) improves the
accuracy of the heater at user-selected
temperature points. Up to 3 points (Plate)
and 3 points (Probe) can be stored.
c) “SYS” – System Settings
System Settings allows the user to set
additional features, such as Enabling /
Disabling the Beeper, Changing the Timer
Start Setting, Changing the Power
Recovery Setting, and Resetting to Factory
Default Settings.
d) “EXIT”
The unit will save the current settings and
return to the main operating screen.
TLIM…CAL…SYS…EXIT
Menu

Professional Series EN-18
2.7.3 Structure & Defaults