ESPEC LH-113 User manual
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SM
View
Instra
User's Manual
Temperature and Humidity Cabinet &
Low Temperature Cabinet
LH-113, LHL-113,
LHU-113, LU-113
4101204000442
• Read this manual carefully before using the
equipment.
• Familiarize yourself with all safety
precautions before using the equipment.
• Keep this manual handy for future
reference.
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はじめに
Liability
ESPEC CORP. assumes NO responsibility whatsoever for accidents or
equipment trouble arising from the failure to observe handling
instructions contained herein. Do not perform any operation or handle
the equipment in any way or form that is not described in this user's
manual or which is herein specifically prohibited. Careless usage of the
sort may result in unexpected damage to the equipment or accident.
• All rights reserved. It is strictly forbidden to reproduce any part of this manual without the express
written consent of ESPEC CORP.
• The contents of this manual are subject to change without notice.
• ESPEC CORP. will replace this manual if pages are missing or out of sequence.
© 1999 ESPEC CORP.
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1
Introduction
This manual has been written for users of Temperature (and Humidity)
Cabinet (LH, LHL, LHU, LU) and particularly for technicians. Read it
thoroughly to obtain the maximum performance from the cabinet.
Safety Symbols
The following safety symbols are used throughout this manual.
Degree of DANGER
VERY
DANGEROUS
This mark means extremely
dangerous consequences may
arise, with the possibility of death
or serious injury to the user, if the
equipment is handled incorrectly.
DANGER
This mark means dangerous
consequences may arise, with the
possibility of death or serious
injury to the user, if the equipment
is handled incorrectly.
CAUTION
This mark means dangerous
consequences may arise, with the
possibility of somewhat serious
injury to the user and/or damage to
equipment and facilities, if the
equipment is handled incorrectly.
Keywords
The following keywords are used in this manual.
Note : Provides information necessary for gaining full
performance from the cabinet or to prevent damage to
equipment.
Procedure : Explains how to operate the cabinet on a step-by-step
basis.
Reference : Offers supplementary information.
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2
Document Composition
The user's manual composition that came with your cabinet contains the
following reference materials. Use them as necessary.
Manual Content
Temperature (and
Humidity) Cabinet
(LH, LHL, LHU, LU)
Explains the basics of Temperature
(and Humidity) Cabinet (LH, LHL, LHU,
LU) as well as how to effectively use
features and some of the options.
Quick Reference Reorganizes operation from the
instrumentation panel into a simple,
handy digest.
Options
• Communication
Function
Explains how to use the communication
function options. This manual shall
always have priority of the above
reference materials when found in
disagreement.
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3
Accessories & Spare Parts
Shelf and shelf
brackets Water supply/drain
hose (9 mm ID with
snap-on socket head)
Brush (For cleaning
the humidifying tray)
Socket adapter Wet-bulb wick
User's Manual
Check the following accessories and spare parts have been included with your cabinet and in the
specified quantity.
No. Accessory/Part Use Qty. Check if
included
Shelf and shelf
brackets Holds specimens inside the cabinet.
Self
2 sets
Self
brackets
2 sets
Water tank
supply/drain hose
9 mm ID with snap-on socket head. Connect
to the cabinet to supply and drain water. (not
included with LU cabinets) 1
Brush Use to clean the humidifying tray. (not included
with LU cabinets) 1
Socket adapter Adapter for converting 3P power cable plug to
2P. (100V AC, 115V AC specification only) 1
User's Manual Literature necessary for proper cabinet use. 1 set
Wet-bulb wick Box of 24 wet-bulb wicks and 1 filler (not
included with LU cabinets) 1
* 115/220/230V AC specification (option) cabinets also come with one glass tube fuse (LH5A / LHL,
LHU,LU10A).
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4
Contents
Introduction
Chapter 1 Precautions in Usage
1.1 Substances Which Should Not Be Placed
inside the Equipment ......................................................................7
1.2 Specimen Protection (Safety Devices) ....................................... 10
Safety Device Setting Example................................................. 11
1.3 Disposing of the Cabinet............................................................... 13
1.4 Other Precautions......................................................................... 14
1.5 Warning Labels............................................................................. 16
For Additional Labels................................................................. 16
Chapter 2 Names and Functions of Parts
2.1 Cabinet.......................................................................................... 17
Front and Right.......................................................................... 17
Rear and Left............................................................................. 17
Test Area................................................................................... 18
Water Circuit (Heat Exhaust) Compartment............................. 18
2.2 Instrumentation Panel................................................................... 19
Chapter 3 Installation
3.1 Installation..................................................................................... 20
Installation Site Check............................................................... 20
3.2 Removing Shipping Protection (LU cabinets excluded)............... 22
3.3 Drainage Work (Not necessary with LU cabinet)......................... 23
3.4 Power Supply Work ...................................................................... 24
3.5 Water Level Check (Not necessary with LU cabinet)................... 26
To Fill the Water Tank............................................................... 26
Water Consumption Rate.......................................................... 27
Checking Water Level in the Humidifying Tray......................... 27
To Check Water Level in the Humidifying Tray
Water Level Regulator.............................................................. 28
Chapter 4 Operation
4.1 Test Preparations.......................................................................... 29
How to Arrange Specimens ...................................................... 29
Setting Shelves and Shelf Bracket............................................ 29
Read this section before using the equipment.
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5
How to Change Specimens (Use only when needed).............. 30
Wet-bulb Wick Check (Not necessary with LU cabinet)........... 34
Wick Pan Water Level Check (Not necessary with LU cabinet)
.................................................................................................... 35
Water Tank Water Level Check (Not necessary with LU cabinet)
.................................................................................................... 35
4.2 Software Interface......................................................................... 36
4.3 Specimen Safety Device Setup.................................................... 38
Overheat Protector.................................................................... 38
Absolute High/Low Limit Temperature (Humidity) Alarms........ 38
Alarm Setup Mode..................................................................... 38
4.4 Target Temperature/Humidity Setup............................................ 42
Constant Setup Mode................................................................ 42
Program Setup Mode ................................................................ 44
4.5 Test Startup / End ......................................................................... 58
Test Startup............................................................................... 58
Test End .................................................................................... 58
4.6 Checking Test Area Temperature and Settings........................... 59
Monitoring in the Constant Mode.............................................. 59
Monitoring in the Program Mode............................................... 60
Monitoring by Remote Control .................................................. 62
4.7 Handy Feature............................................................................... 64
Inner Door (Option).................................................................... 64
Chapter 5 Getting More Out of Your Cabinet
5.1 Communication Environment Setup (Option)............................... 66
Communication Setup Mode..................................................... 66
5.2 User Setup and Safety Device Options Setup ............................. 68
User Setup Mode....................................................................... 68
5.3 Checking Cabinet Model, ROM Version and Control Software
Version .......................................................................................... 74
System Environment Monitor Mode.......................................... 74
Chapter 6 Checks and Maintenance
6.1 Check and Maintenance Lists....................................................... 76
6.2 Checks .......................................................................................... 77
Main Power Switch (Leakage Bleaker) Trip Test ..................... 77
Overheat Protector Trip Test ................................................... 77
6.3 Maintenance ................................................................................ 79
Condenser Cleaning (Not necessary for LU cabinet)............... 79
Water Tank Cleaning (Not necessary for LU cabinet).............. 80
Electromagnetic Pump (Water Tank) Protective Strainer Cleaning
(Not necessary for LU cabinet) ................................................ 80
Humidifying Tray Cleaning (Not necessary for LU cabinet) ..... 81
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6
Test Area Cleaning.................................................................... 82
Water Circuit (Heat Exhaust) Compartment Cleaning.............. 82
Take-Down Before Long Periods of Disuse ............................. 83
Chapter 7 Troubleshooting
7.1 Detectable Troubles...................................................................... 84
1st and 2nd Degree Alarms ...................................................... 84
Clearing Alarms......................................................................... 85
Alarm Table............................................................................... 86
7.2 Other Troubles .............................................................................. 89
7.3 User Practical Servicing................................................................ 91
Defrosting .................................................................................. 91
Appendix
A Major Specifications ...................................................................... 92
Temperature and Humidity Cabinet.......................................... 92
Low Temperature Cabinet......................................................... 94
B Temperature (Humidity) Control...................................................... 95
C Parts Construction ......................................................................... 96
D Consumable Parts and Replacement Interval................................ 97
E Options............................................................................................. 98
F Instrumentation Displays............................................................... 100
G Program Sheet............................................................................... 105
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Chapter 1 Precautions in Usage
7
Chapter 1 Precautions in Usage
Read this section before
using the equipment.
This chapter explains safety precautions you should observe to operate
the equipment safely. Be sure to read it carefully and follow instructions
to the letter so as to prevent harm to yourself, anyone else, specimens or
the equipment.
1.1 Substances Which Should Not Be
Placed inside the Equipment
DANGER
DO NOT introduce the following explosives,
combustibles or substances which contain them into
the equipment. Moreover, keep these substances
away from the equipment and immediate area.
When exposed to excessive heat, these substances may cause
fires and/or explosions.
Explosive Substances
Inflammable Substances
Cont.
Explosive Substances
• Nitroglycol, nitroglycerine, nitrocellulose, and other
explosive ester nitrates.
• Trinitro-benzene, trinitrotoluene, picric acid, and
other explosive nitrocompounds.
• Peracetic acid, methyl ethyl ketone peroxides,
benzoyl peroxide, and other organic peroxides.
Combustible Substances
Metal lithium, metal potassium, metal sodium, yellow
phosphor, phosphor sulfide, red phosphor, celluloids,
calcium carbonate (also called carbide), calcium
phosphate, magnesium powder, aluminum powder,
metal powders other than magnesium powder and
aluminum powder, hydrosulfite.
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Chapter 1 Precautions in Usage
8
DANGER
Cont.
Oxides
• Potassium chlorate, sodium chlorate, ammonium
chlorate, and other chlorates.
• Potassium perchlorate, sodium perchlorate,
ammonium- perchlorate, and other perchlorates.
• Potassium peroxide, sodium peroxide, barium
peroxide, and other inorganic peroxides.
• Potassium nitrate, sodium nitrate, ammonium
nitrate, and other nitrates.
• Sodium chlorite and other chlorites.
• Calcium hypochlorite and other hypochlorites.
Ignitable Substances
• Ethyl ether, gasoline, acetaldehyde, propylene
oxide, carbon disulfide and other substances with
an ignition point of -30°C (-22°F).
• Normal hexane, ethylene oxide, acetone, benzene,
methyl ethyl ketone and other substances with an
ignition point above -30°C (-22°F) and below 0°C
(32°F).
• Methanol, ethanol, xylene, pentyl acetate
amylacetate and other substances with an ignition
point above 0°C (32°F) and below 30°C (85°F).
• Kerosene, light oil, turpentine oil, isopentyl alcohol
(also called isoamyl alcohol), acetic acid and other
substances with an ignition point above 30°C
(85°F) and below 65°C (150°F).
Combustible Gases
Hydrogen, acetylene, ethylene, methane, ethane,
propane, butane, and other combustible substances
that are in a gaseous state at a temperature of 15°C
(60°F) and at a pressure of 1 atmosphere.
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Chapter 1 Precautions in Usage
9
CAUTION
• DO NOT introduce corrosive substances into the
equipment.
Humidifying water or specimens which generate substances that
corrode stainless steel, copper or silicon rubber can drastically
shorten service-life of internal parts, including the refrigerator,
and packing.
Corrosive substances include but are not limited to chlorine,
chlorides and acids. Though apparently harmless at ambient
temperature, these substances can readily corrode circuit boards
and other parts when the equipment is run at high temperature
and humidity.
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Chapter 1 Precautions in Usage
10
1.2 Specimen Protection (Safety Devices)
CAUTION
• Set safety devices according to test conditions and
the type of specimens.
Unless properly set, specimens could be damaged in the event
something goes wrong in testing.
The cabinet is controlled to a user-set target temperature and humidity
by a temperature (and humidity) controller, but temperature and humidity
* can get out of control for various reasons. Therefore, to protect
specimens against thermal and humidity damage, the cabinet comes
with hardware and software protection against overheating.
* The LU is without humidity control.
Table 1.1 Hardware/Software safety devices
Safety device Trip point
(Set to satisfy below
conditions.)
Equipment response
when tripped Remarks
Overheat protector・
Set roughly 20°C higher than
target temperature.
・
Set below specimen's maximum
allowed temperature.
Absolute
high limit
・
Set roughly +15 to +20°C higher
than target temperature.
・
Set below specimen's maximum
allowed temperature.
・
Max. 95°C
Absolute
low limit
Set higher than the cabinet’s
lowest allowed temperature.
LH : Min.0°C
LHL : Min.0°C
LHU : Min.-25°C
LU : Min.-25°C
・
Set a minimum 5°C lower than
target temperature.
・
Set above specimen's minimum
allowed temperature.
・
Alarm displayed
・
Buzzer sounded
・
Heater shut OFF
・
Humidifier shut OFF
(Not applicable to LU
cabinets)
・
Refrigerator shut
OFF
(Not applicable to LH
cabinets)
・
Air circulator shut
OFF
・
Specimen power
supply control
terminal interrupted
(option)
Temperature
alarms
Upper
deviation
limit
Set roughly 10°C higher than target
temperature. ・
Alarm displayed
・
Buzzer sounded *1
・
Heater shut OFF
Absolute
high limit
Set at least 10%RH higher than
target humidity.
Set below specimen’s maximum
allowed humidity.
・
Alarm displayed
・
Buzzer sounded *1
・
Humidifier shut OFF
Build into temperature (and humidity) controller
Humidity
alarms (Not
included on
LU cabinets) Absolute
low limit
･Set at least 10%RH lower than
target humidity.
Set above specimen‘s minimum
allowed humidity.
・
Alarm displayed
・
Buzzer sounded *1
When
temperature
returns within
range limits,
alarms are
automatically
cleared.
*1 : Can be turned ON/OFF.
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Chapter 1 Precautions in Usage
11
Absolute high/low limit temperature (& humidity) alarms and
upper deviation limit temperature alarm
The absolute high/low limit alarms are completely independent of the
target temperature (& humidity). They do not change when target
temperature (or humidity) has been changed.
On the other hand, the upper deviation limit alarm is relative to the
target temperature.
If the target temperature is changed, the deviation alarm temperature
changes in proportion.
45
Temperature(°C)
Time
Constant mode
start Constant mode
end
35
25
5
Absolute high limit temperature alarm
Upper deviation limit temperature alarm (Target temperature +10°C)
Target temperature
Absolute low limit temperature alarm
Fig. 1.1 Temperature alarm settings
Safety Device Setting Example
High limit temperature
In this example, the target temperature is 60°C and the maximum
allowed temperature of the specimens is 80°C. Safety devices are set as
follows.
Table 1.2 Setting example for overheat protector
and high limit temperature alarms
Overheat protector +80°C
・Set 20°C higher than
target temperature.
・Set to specimen's
maximum allowed
temperature.
Absolute
high limit +75°C
・Set 15°C higher than
target temperature.
・Set 5°C lower than
specimen's maximum
allowed temperature.
Temperature
(and Humidity)
controller Upper
deviation
limit +10°C Will trip at 70°C.
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Chapter 1 Precautions in Usage
12
With the settings in Table 1.2, the safety devices will trip in the
succession shown in Fig. 1.2 as temperature inside the cabinet rises
beyond the target temperature. The first to trip will be the upper deviation
limit alarm, followed by the absolute high limit alarm and then the
overheat protector. Because the cabinet is equipped with multiple safety
devices, abnormal temperatures cannot escape detection even if one of
the devices is not working.
60
70
75
80
Abnormal temperature detected here.
(If ①and ②are not working)
Time
Cabinet temperature(°C)
Abnormal temperature
detected here. (If ①is
not working)
Abnormal
temperature
detected here.
Target temperature
③Overheat protector
②Absolute high limit
temperature alarm
①Upper deviation limit
temperature alarm
Alarm cleared here.
Fig. 1.2 Temperature alarm trigger conditions
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Chapter 1 Precautions in Usage
13
1.3 Disposing of the Cabinet
DANGER
• TRAPPED INSIDE! Before disposing of the cabinet,
take the door off its hinges.
• HEAVY DOOR! Have someone hold the door when
detaching it from the hinges.
The door is heavy and can injure you if it falls on top of you.
1. Remove the bolts that lock the hinges (x 2) to the door. Use an 8 mm
wrench. Support the door to prevent it from falling.
2. Lift the door upward slightly and then pull it toward you to detach.
Fig. 1.3 Door hinge
Procedure
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Chapter 1 Precautions in Usage
14
1.4 Other Precautions
DANGER
• Ground the equipment WITHOUT FAIL.
ELECTRIC SHOCK! Unless the equipment is grounded, the leakage
breaker will not trip in the event current leaks, possibly resulting in
electric shock. For details on grounding, see "3.3 Power Supply Work".
• BEFORE using the equipment, test the leakage breaker
and make sure it is working properly.
ELECTRIC SHOCK! If the breaker is not working properly, shut OFF the
primary power supply and contact the place of purchase or ESPEC
CORP. Using the equipment in anything but good working condition
could result in electric shock. For an explanation on how to test the
breaker, see "6.2 Checks".
• Use only the specimen power supply control terminal
(option) to apply voltage to specimens.
Specimens generate heat as they are charged. The specimen power
supply control terminals are interlocked with the cabinet control circuit,
so power to specimens is turned OFF when the cabinet is not running.
Using other means to charge specimens leaves the specimens charged
in the event of cabinet trouble. This can drive up temperature inside the
cabinet which can damage specimens and, in worse cases, result in
fire. For more information, see "How to Charge Specimens" in "4.1 Test
Preparations".
Cabinet temperature
Time
When using specimen
power supply control
terminals
When not using
specimen power supply
control terminals
Trouble
occurred here.
▼
Fig. 1.4 Temperature and specimen power supply control
terminals(Option)
• Do not use or leave the equipment outdoors.
Not only can outdoor environments adversely affect performance and
functioning, but also electrical parts contact with water can lead to
short-circuit, fire, electric shock and breakdown.
• Do not disassemble, remodel or service the equipment.
Unauthorized handling can lead to malfunction, fire, electric shock,
personal injury and breakdown. For servicing, contact the place of
purchase or ESPEC ENGINEERING CORP.
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Chapter 1 Precautions in Usage
15
CAUTION
• HOT AIR BLAST WHEN OPEN! Use caution when opening
the door during and shortly after operation at high
temperature.
HOT air is blown from inside the cabinet when opened.
• HOT ON THE INSIDE! During and shortly after operation
above 55°C, the cabinet is HOT on the inside (specimens,
shelves, door gasket, test area walls).
Direct contact may result in burns. Wear heat resistant gloves.
• COLD ON THE INSIDE! During and shortly after operation
below 0°C, the cabinet is COLD on the inside (specimens,
shelves, door gasket, test area walls).
Direct contact may result in cold burns. Wear cold resistant gloves.
(Not necessary with LH cabinet)
• When opening the door during or immediately after
operation, be careful of dewing.
Dew formed inside the test area can drip onto the floor. Be mindful of
dewing also when loading specimens which contain moisture into the
cabinet.
• DO NOT turn the refrigerator ON within 5 minutes of
turning it OFF, or vice-versa.
Failure to observe the above precautions can seriously shorten
refrigerator service-life. (Not necessary with LH cabinet)
• DO NOT introduce electrically conductive specimens
which might easily be thrown about by air currents inside
the cabinet.
Specimens of the sort can cause current leaks in the heater if they
infiltrate the air conditioner.
• Do not stack cabinets on top of one another.
• Keep objects off the cabinet top.
• Blot up moisture from wet specimens before introducing them into the
cabinet.
• The withstand load of the included shelf is 5 kg evenly distributed. Spread
specimens across the entire shelf without bunching them in any one
place.
Note
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Chapter 1 Precautions in Usage
16
1.5 Warning Labels
Left Front
Right
Fig. 1.5 Warning label location
For Additional Labels
If labels are damaged, lost or become otherwise illegible, contact the
place of purchase or ESPEC CORP. for replacements. (Replacements
subject to billing.)
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Chapter 2 Names and Functions of Parts
17
Chapter 2 Names and Functions
of Parts
This chapter explains cabinet, test area, instrumentation panel and
water circuit (heat exhaust) compartment parts by name and function.
Return to this chapter any time you are not sure where the part being
referred to is.
2.1 Cabinet
Fig. 2.1 Front, right, rear and left side parts (Stands are available as an option.)
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This manual suits for next models
3
Table of contents
Other ESPEC Climate Chamber manuals
