ESPEC LH-113 User Manual
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ESPEC LH-113 User Manual

Temperature and humidity cabinet & low temperature cabinet
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ESPEC LH-113 User Manual

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  • Page 1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
  • Page 2 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.
  • Page 3 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. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 4 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 This mark means extremely dangerous consequences may...
  • Page 5 Document Composition The user's manual composition that came with your cabinet contains the following reference materials. Use them as necessary. Manual Content Explains the basics of Temperature Temperature (and (and Humidity) Cabinet (LH, LHL, LHU, Humidity) Cabinet LU) as well as how to effectively use (LH, LHL, LHU, LU) features and some of the options.
  • Page 6 Accessories & Spare Parts Water supply/drain Shelf and shelf Brush (For cleaning hose ( 9 mm ID with brackets the humidifying tray) snap-on socket head) Socket adapter User's Manual Wet-bulb wick Check the following accessories and spare parts have been included with your cabinet and in the specified quantity.

  • Page 7: Table Of Contents

    Contents Introduction Read this section before using the equipment. Chapter 1 Precautions in Usage Substances Which Should Not Be Placed inside the Equipment ..............7 Specimen Protection (Safety Devices) ........10 Safety Device Setting Example..........11 Disposing of the Cabinet............... 13 Other Precautions .................
  • Page 8 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) ....................
  • Page 9 Test Area Cleaning..............82 Water Circuit (Heat Exhaust) Compartment Cleaning....82 Take-Down Before Long Periods of Disuse ......83 Chapter 7 Troubleshooting Detectable Troubles ..............84 1st and 2nd Degree Alarms ............84 Clearing Alarms ................. 85 Alarm Table ................86 Other Troubles ................

  • Page 10: Substances Which Should Not Be Placed Inside The Equipment

    Chapter 1 Precautions in Usage 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.
  • Page 11 Chapter 1 Precautions in Usage 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. •...
  • Page 12 Chapter 1 Precautions in Usage 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.

  • Page 13: Specimen Protection (Safety Devices)

    Chapter 1 Precautions in Usage 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.

  • Page 14: Safety Device Setting Example

    Chapter 1 Precautions in Usage 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.
  • Page 15 Chapter 1 Precautions in Usage 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.

  • Page 16: Disposing Of The Cabinet

    Chapter 1 Precautions in Usage 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.

  • Page 17: Other Precautions

    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.
  • Page 18 Chapter 1 Precautions in Usage 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).

  • Page 19: Warning Labels

    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.) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 20: Cabinet

    Chapter 2 Names and Functions of Parts 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.

  • Page 21: Test Area

    Chapter 2 Names and Functions of Parts Test Area Air circulator Support Circulates air in the test area. Dry-bulb temperature sensor Supports shelf brackets, shelf and specimens. Detects dry-bulb(test area) temperature. Shelf Cable port Shelf for holding specimens. Wet-bulb temperature sensor＊ Withstand load: 5 kg evenly distributed Detects wet-bulb temperature (test...

  • Page 22: Instrumentation Panel

    Chapter 2 Names and Functions of Parts 2.2 Instrumentation Panel ALARM lamp CONST. lamp lamp MONITOR lamp Flashes when an alarm is Lit up in the constant mode. Lit solidly when a temperature Lit solidly while the monitor generated. is displayed, whether a mode is displayed.

  • Page 23: Installation

    This chapter explains how to install the cabinet and prepare for tests. Be sure to read the parts on installation even if having the cabinet installed by the place of purchase or ESPEC CORP. Also, refer to this chapter whenever relocating the cabinet.
  • Page 24 Chapter 3 Installation Installation space The cabinet requires maintenance space on the left and right sides, plus space on the rear to connect the drain hoses and vent hot air exhaust. It must be also be a safe distance from objects on the front side so that the door can be opened.

  • Page 25: Removing Shipping Protection (Lu Cabinets Excluded)

    Chapter 3 Installation 3.2 Removing Shipping Protection (LU cabinets excluded) The cabinet is shipped with protective sponges inside the wick pan water supplier and humidifying tray water level regulator. These sponges prevent the floats from being damaged during transport. Before performing power supply work, remove the sponges.

  • Page 26: Drainage Work (Not Necessary With Lu Cabinet)

    Chapter 3 Installation 3.3 Drainage Work (Not necessary with LU cabinet) Drainage work is needed to drain water from the humidifying tray and condensation formed in the test area out of the cabinet. CAUTION • If collecting drainage in a container, check water level to make sure it does not overflow.

  • Page 27: Power Supply Work

    Chapter 3 Installation 3.4 Power Supply Work 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. The power cable has a 3-pole plug with grounding pole. Plug it directly into an electrical outlet with ground.
  • Page 28 Chapter 3 Installation CAUTION ・ ・ ・ ・ Do not use extension cords, power strips, or other similar products. One blade of the plug is 6.3 mm wide while the other is 8 mm wide. Depending on the type, commercially sold extension cords will not fit the plug.

  • Page 29: Water Level Check (Not Necessary With Lu Cabinet)

    Chapter 3 Installation 3.5 Water Level Check (Not necessary with LU cabinet) Water is supplied from the water tank to the humidifying tray. For proper cabinet operation, water level in the tray must be checked.   • Use distilled water of a 0.1 to 10 µS/cm conductivity. Using water Note with a high impurity content, such as tap water, will shorten service-life of the humidifying heater and wet-bulb wick.

  • Page 30: Water Consumption Rate

    Chapter 3 Installation Water Consumption Rate When the FULL lamp is lit When the FULL lamp is lit, you can use about 14L of water. Though consumption rate will vary according to conditions of use, the below table gives a yardstick of water consumption. Table 3.1 Water consumption rate Water Continuous hours...

  • Page 31: To Check Water Level In The Humidifying Tray Water Level Regulator

    Chapter 3 Installation To Check Water Level in the Humidifying Tray Water Level Regulator Water level in the humidifying tray will depend on the water level in the humidifying tray water level regulator. The air circulator in the water circuit (heat exhaust) compartment Note panel is dangerous.

  • Page 32: Test Preparations

    Chapter 4 Operation Chapter 4 Operation This chapter explains test preparations and preliminary checks, test startup and ending of the temperature (and humidity) cabinets. Perform the work described in this chapter before every test. 4.1 Test Preparations How to Arrange Specimens The withstand load of each included shelf is 5 kg evenly Note distributed.

  • Page 33: How To Change Specimens (Use Only When Needed)

    Chapter 4 Operation 2. Slide the shelf onto the shelf brackets. The hook should be to the rear. When sliding the shelf in, make sure the shelf and hooks clamp the brackets. Shelf bracket Shelf Hook Fig. 4.2 How to install shelves How to Charge Specimens (Use only when needed.) Use the specimen power supply control terminal (option) to charge...
  • Page 34 Chapter 4 Operation To charge specimens with less than 1 A of power Be sure to fit the line with a suitable capacity fuse. Specimen power supply control Fuse terminal Specimen Power supply for specimens Test area Fig. 4.3 Wiring to specimens <To charge specimens with less than 1 A of power>...
  • Page 35 Chapter 4 Operation 3. Disconnect the terminal plug from the connector on the right side of the cabinet. Connector Terminal plug Fig. 4.5 Disconnecting the terminal plug 4. Wire a power supply to the specimen power supply control terminals. Insert the wire leads into the top 2 slots on the terminal plug and tighten the screw with a slotted head screwdriver.
  • Page 36 Chapter 4 Operation • After feeding the specimen cable through the cable port, cover the Reference port with the included rubber plug. Without the plug, outside air will infiltrate the test area, which can keep temperature (humidity) from reaching the target setting. Cut a notch the size of the cable in the plug and fit the cable in the notch.

  • Page 37: Wet-Bulb Wick Check (Not Necessary With Lu Cabinet)

    Chapter 4 Operation Wet-bulb Wick Check (Not necessary with LU cabinet) • The wet-bulb wick (included) must be installed in order to run Note humidity tests. If already in place, check whether it is wet or dry before starting. If dry, change it. •...

  • Page 38: Wick Pan Water Level Check (Not Necessary With Lu Cabinet)

    Chapter 4 Operation 4. Lay the ends of the wet-bulb wick in the wick pan. Dry-bulb temperature sensor Align wick tail edge with Wet-bulb sensor tip. temperature sensor Do not insert the sensor into the bottom hole. The wick will not drape at the correct height for absorbing water.

  • Page 39: Software Interface

    Chapter 4 Operation 4.2 Software Interface The software installed in cabinets gives you finger-tip control over power ON/OFF, operating mode selection, test starting/stopping, test setup and monitoring. A function tree showing available modes and setup/monitor items is given in Figs. 4.12 and 4.13. The sequence in which modes and items are displayed can be checked in “Instrumentation Displays”...
  • Page 40 Chapter 4 Operation Program setup mode SET key 1. Absolute high limit temperature alarm 2. Absolute low limit temperature alarm Alarm setup 3. Upper deviation limit temperature alarm mode 4. Absolute high limit humidity 5. Absolute low limit humidity SET key 1.

  • Page 41: Specimen Safety Device Setup

    Chapter 4 Operation 4.3 Specimen Safety Device Setup Overheat Protector CAUTION • Always set the overheat protector BEFORE beginning tests. Set it according to the type of specimens and test conditions. Unless properly set, the overheat protector will not trip in the event of cabinet trouble, which could lead to specimen damage.
  • Page 42 Chapter 4 Operation triggered by test area temperature (& humidity). Alarms will trip as follows. • When the test area temperature rises above the absolute high limit temperature, the absolute high limit temperature alarm trips. • When the test area temperature drops below the absolute low limit temperature, the absolute low limit temperature alarm trips.
  • Page 43 Chapter 4 Operation Operation Selects and inputs settings. Selects the digit. Enters changes to settings. ENT. * Unless the key is pressed, changes you make to settings ENT. will not be updated. Moves to the next setting. NEXT In this manual, indicates a flashing digit. Absolute high limit temperature alarm Stands for “...
  • Page 44 Chapter 4 Operation Upper deviation limit temperature alarm Stands for “ Upper Deviation Limit Temperature Alarm ” Currently set upper deviation limit temperature ： Changes the value. ： Selects the digit. ○ ALARM SET ： Enter changes. ENT. * Setting range : 5.0 ≦ Upper deviation limit temperature ≦ 50.0 Press the key and move to the next setting.

  • Page 45: Target Temperature/Humidity Setup

    Chapter 4 Operation 4.4 Target Temperature/Humidity Setup Constant Setup Mode In the constant mode, you set the temperature and humidity. Getting constant setup mode Set the main power switch in the ON position and press the POWER key. With the temperature monitor on the display, press the key 1 time.
  • Page 46 Chapter 4 Operation Humidity control ON/OFF (Not necessary for LU cabinet) Stands for “ Humidity ”. Humidity control status ○CONST. SET ： ON Turns humidity control ON. Go to the target humidity setting (step 3 in this procedure). Turns humidity control OFF. Return to the target temperature setting (step 1 in this procedure).

  • Page 47: Program Setup Mode

    Chapter 4 Operation Program Setup Mode The program changes the target temperature (humidity) as dictated by a program that you create in advance. Each program is a test pattern of multiple steps. Each step contains a target temperature (humidity) and exposure time.
  • Page 48 Chapter 4 Operation Getting program setup Set the main power switch in the ON position and press the POWER key. With the temperature (humidity) monitor on the display, press the key 2 times. The program edit task selection will appear on the display. Operation Selects and inputs settings.
  • Page 49 Chapter 4 Operation The following program is used as an example to help you with program setup. In it, steps 1 ~ 3 are run three times (repeated twice), then step 4 is run and power is shut OFF at program end. When actually creating programs, use the Program Sheet in Appendix G.

  • Page 50: Step Edit Content Selection Step/End/Save

    Chapter 4 Operation First of all, select “CLER” for the program edit task and press the ENT. key to erase the existing program. However, if wanting only to edit part of the existing program, follow the below procedure without erasing the entire program.

  • Page 51: Step Selection

    Chapter 4 Operation Step 1 Setup Step selection Input “1” as the step No. and press the key. Then, press the key. ENT. NEXT Stands for “ Step ” Step No. ： Changes the value. ○PRGM SET ： Enters the selection. ENT.

  • Page 52: Target Temperature

    Chapter 4 Operation Target temperature Input “20.0” and press the key. Then, press the key. ENT. NEXT Target temperature Changes the value. Selects the digit. PRGM SET Enter changes. ENT. Setting range : Absolute low limit temperature Target temperature Absolute high limit temperature The humidity target appears here.
  • Page 53 Chapter 4 Operation Step exposure time Input “1.00” and press the key. Then, press the key. ENT. NEXT Step exposure time Change the value. Selects the digit. PRGM SET Enters the selection. ENT. * Exposure time can be set between 00 (h): 00 (min) and 99 min.
  • Page 54 Chapter 4 Operation 10. Temperature ramp control ON/OFF Select “OFF” and press the key. Then, press the key. ENT. NEXT In ramp control, temperature rise or fall from the setting in the previous step to that of this step is controlled at a constant rate, or ramp.

  • Page 55: Next Key

    Chapter 4 Operation 12. Step data enter command YES/NO Select “YES” and press the key. Then, press the key. ENT. NEXT Stands for “Enter”. Enter command ： YES Enters data and ends input for the current ○PRGM SET step. Ends step input without entering the input data.

  • Page 56: Next Key

    Chapter 4 Operation Step 3 Setup 2. Select the step edit content selection STEP/END/SAVE. To setup the next step No., select “STEP” and press the key. ENT. 3. Input the setup No. Input “3” and press the key. Then, press the key.
  • Page 57 Chapter 4 Operation 8. Set the step exposure time. Input “1.00” and press the key. Then, press the key. ENT. NEXT 9. Turn soak control ON. Select “ON” and press the key. Then, press the key. ENT. NEXT 12. Enter step setup. Select “YES”...
  • Page 58 Chapter 4 Operation 13. Number of repeat cycles Input “2” and press the key. Then, press the key. ENT. NEXT Once you set the number of repeat cycles, the program will execute the steps in the repeat range the number of times set here, increasing by 1 each time one cycle is completed. What this means is that testing returns to the repeat counter start step after the repeat counter end step is executed instead of proceeding to the next step in the program.
  • Page 59 Chapter 4 Operation 15. Repeat counter end step Input “3” and press the key. Then, press the key. ENT. NEXT Stands for “End”. Repeat counter end step PRGM SET Change the value. Enters the selection. ENT. * The repeat counter end step can be set within the following range.
  • Page 60 Chapter 4 Operation Saving the Program Step edit content selection STEP/END/SAVE The program is saved by selecting “SAVE” for the step edit content selection and pressing the key. If you perform other operations such as switching to the alarm mode without first saving ENT.

  • Page 61: Test Startup / End

    Chapter 4 Operation 4.5 Test Startup / End Test Startup Before starting tests, make the preparations and settings described in sections "4.1 Test Preparations", "4.3 Specimen Safety Device Setup” and "4.4 Target Temperature/Humidity Setup". Procedure 1. Check control power is ON. 2.

  • Page 62: Checking Test Area Temperature And Settings

    Chapter 4 Operation 4.6 Checking Test Area Temperature and Settings Both test area status and setup can be monitored during the constant mode and program mode, and by remote control. Monitoring in the Constant Mode While the cabinet is running in the constant mode, you can view constant mode setup.

  • Page 63: Monitoring In The Program Mode

    Chapter 4 Operation Monitoring in the Program Mode In the program mode monitor, you can view the current test area temperature (and humidity), the target temperature (and humidity) for the current step, the time remaining to step end, the exposure time set for the current step and the set number of the repeat cycles if set in the program.
  • Page 64 Chapter 4 Operation Target step exposure time ○MONITOR PRGM Target step exposure time * Time is displayed either in the range of 00 (h): 00 (min) to 99 (h): 59 (min), or 100 to 999 hours. Press the key and move to the next setting. NEXT Number of repeat cycles Stands for “Counter”.

  • Page 65: Monitoring By Remote Control

    Chapter 4 Operation Monitoring by Remote Control In the remote control monitor, you can view the current test area temperature (and humidity), the target temperature (and humidity) for the current step, the time remaining to step end and the exposure time set for the current step.
  • Page 66 Chapter 4 Operation Target step exposure time ○MONITOR PRGM Target step exposure time REMOTE * Time is displayed either in the range of 00 (h): 00 (min) to 99 (h): 59 (min), or 100 to 999 hours. Press the key and move to the next setting. NEXT Test area temperature (and humidity) Artisan Technology Group - Quality Instrumentation ...

  • Page 67: Handy Feature

    Chapter 4 Operation 4.7 Handy Features Inner Door (Option) The inner door (option) can be installed even after the cabinet is delivered. Contact the place of purchase or ESPEC CORP. CAUTION • FRAGILE! The glass will break under strong impact or force.
  • Page 68 Chapter 4 Operation • The inner door is designed so that users can view inside the test Note area during cabinet operation. However, it can fog up during operation at high temperature and high humidity. In such case, turn the wiper knob until visibility is restored. Also, the inner door can be locked and unlocked by the turning the lock knob.

  • Page 69: Chapter 5 Getting More Out Of Your Cabinet

    Chapter 5 Getting More Out of Your Cabinet Chapter 5 Getting More Out of Your Cabinet This chapter explains how to get more out of your cabinet. 5.1 Communication Environment Setup (Option) Communication Setup Mode To communicate with other external devices, you must set up the communication environment.
  • Page 70 Chapter 5 Getting More Out of Your Cabinet For E-BUS communications Communication setup top display “ Stands for User ” “ Stands for Communication ” ○SYSTEM Pressing the key will move to the next setting. NEXT If the cabinet is equipped for GP-IB communications (option), the display will change to the GP-IB address setting.

  • Page 71: User Setup And Safety Device Options Setup

    Chapter 5 Getting More Out of Your Cabinet 5.2 User Setup and Safety Device Options Setup This section explains how to set up your test environment and optional safety devices. User Setup Mode Getting Use Setup Mode Set the main power switch in the ON position and press the POWER key.
  • Page 72 Chapter 5 Getting More Out of Your Cabinet Setting keys lock ON/OFF Stands for Set Lock . Key lock status ON Locks the keys. Enters the selection. ENT. SYSTEM OFF Unlocks the keys. * Even when keys are locked, the CONST.OPER./STOP key, PRGM OPER./STOP key and POWER key still...
  • Page 73 Chapter 5 Getting More Out of Your Cabinet Power recovery mode CNTI/REST Stands for “ Recovery ” . Power Recovery Mode ： CNTI Restores state prior to power failure. ○SYSTEM RSET Resets chamber to initial state. ： Enters the selection. ENT.
  • Page 74 Chapter 5 Getting More Out of Your Cabinet Humidity control attainment range (Not displayed with LU cabinet) Stands for “ Stability Humidity 1 ” Humidity attainment range ： Change the value. ： Selects the digit. ○SYSTEM ： Enters the selection. ENT.
  • Page 75 Chapter 5 Getting More Out of Your Cabinet 11. Dry-bulb temperature calibration Stands for “Calibration Temperature”. Amount of offset ： Change the value. ： Selects the digit. ○ SYSTEM ： Enters the selection. ENT. * The target temperature can be set within the below range. -5.0 ≦...
  • Page 76 Chapter 5 Getting More Out of Your Cabinet 12. Wet-bulb temperature calibration (Not displayed with LU cabinet) Stands for Calibration Wet Temperature . Amount of offset Change the value. Selects the digit. SYSTEM Enters the selection. ENT. * Setting range: -5.0 wet-bulb temperature offset +5.0.

  • Page 77: Checking Cabinet Model, Rom Version And Control Software Version

    Chapter 5 Getting More Out of Your Cabinet 5.3 Checking Cabinet Model, ROM Version and Control Software Version With this cabinet, you can check the model, ROM and control software version. Normally, this isn’t necessary, but you will need this information when inquiring about the equipment or calling for service.
  • Page 78 Chapter 5 Getting More Out of Your Cabinet ROM version Stands for “ Rom ” . Vresion of currently mounted ROM ○SYSTEM Press the key and move to the next setting. NEXT Control software (ladder) version Stands for “ Ladder ” . Version of currently installed control software ○SYSTEM Press the...

  • Page 79: Chapter 6 Checks And Maintenance

    6.1 Check and Maintenance Lists Check list For an explanation on each check item, see "6.2 Checks". If any of the following checks result bad, contact the place of purchase or ESPEC CORP. Table 6.1 Check list Check item When to check...

  • Page 80: Checks

    Chapter 6 Checks and Maintenance 6.2 Checks Main Power Switch (leakage breaker) Trip Test Once a month and before long test runs, test-trip the main power switch (leakage breaker). The switch is found on the rear side of the cabinet. With the main power switch in the ON position, press the gray test button.
  • Page 81 Alarm screen will be appear on the display when temperature inside the cabinet reaches the overheat protector setting. If the buzzer doesn’t sound, something is wrong with the equipment. Contact the place of purchase or ESPEC CORP. 5. To silence the buzzer, press either the keys.

  • Page 82: Maintenance

    Chapter 6 Checks and Maintenance 6.3 Maintenance Condenser Cleaning (Not necessary for LH cabinet) Before cleaning the condenser, open and close the door to rid the inner door of any clinging moisture. Procedure 1. Unplug the cabinet from its electrical outlet. 2.

  • Page 83: Water Tank Cleaning (Not Necessary For Lu Cabinet)

    Chapter 6 Checks and Maintenance Water Tank Cleaning (Not necessary for LU cabinet) 1. Connect the included water supply/drain hose to the water tank nipple Procedure and drain the water tank empty. (It takes about 8 minutes to drain a full tank.) Water tank Water tank nipple...

  • Page 84: Humidifying Tray Cleaning (Not Necessary For Lu Cabinet)

    Chapter 6 Checks and Maintenance Phillips screwdriver To electromagnetic pump Float switch Stainless steel Top plate pipe Tube Floats Strainer Fig. 6.4 Electromagnetic pump protective strainer 4. Pull the tube to which the strainer is attached out from the top plate and wash off dirt and grime with clean water.

  • Page 85: Test Area Cleaning

    Chapter 6 Checks and Maintenance Procedure 1. Open the cabinet door. 2. Lift the protective grille outwards from the bottom and then upwards to detach. ② ① Fig. 6.5 How to detach the protective grille 3. Clean the surfaces of the humidifying tray and humidifying heater with a brush or by other means.

  • Page 86: Take-Down Before Long Periods Of Disuse

    Chapter 6 Checks and Maintenance 2. Detach the water circuit (heat exhaust) compartment panel. 3. Clean dirt from inside with a vacuum cleaner or by other means. 4. Reattach the compartment panel. Take-Down Before Long Periods of Disuse Before disuse of 3 days or more, do the following to prevent mildew or scale formation.

  • Page 87: Chapter 7 Troubleshooting

    For trouble which is undetected in self-checks, see "7.2 Other Troubles". If the trouble cannot be remedied after taking the prescribed action, contact the place of purchase or ESPEC CORP. (Call for service.) 1st and 2nd Degree Alarms Detectable trouble is manifested either as 1st or 2nd degree alarms.

  • Page 88: Clearing Alarms

    Chapter 7 Troubleshooting Clearing Alarms This section explains how to deal with trouble that trips one of the cabinet’s self-checks. The buzzer can be silenced by pressing any of the keys, but follow the below procedure as best possible. When a 1st Degree Alarm Occurs 1.

  • Page 89: Alarm Table

    Chapter 7 Troubleshooting When the cause of the trouble has been eliminated 1. Check the alarm code on the display. 2. Press either the keys to silence the buzzer. The alarm code is cleared. Alarm Table Table 7.1 Alarm table Displayed alarm code/channel Trouble...
  • Page 90 Chapter 7 Troubleshooting Displayed alarm code/channel Trouble Cause Remedial action code (option) Either specimens Turn control power OFF from the The temperature inside the inside the cabinet are cabinet has risen above the POWER key. Then, remove the generating heat or the absolute high limit.
  • Page 91 Chapter 7 Troubleshooting Displayed alarm code/channel Trouble Cause Remedial action code (option) The humidity inside the The absolute low limit Set the absolute low limit about cabinet has dropped below is set higher than the 10%RH lower than the target the absolute low limit.

  • Page 92: Other Troubles

    This section explains troubles undetected in cabinet self-checks and cases of misoperation which are easily mistaken as trouble. If the trouble cannot be remedied after taking the prescribed action, contact the place of purchase or ESPEC CORP. Table 7.2 Other troubles Trouble...
  • Page 93 Chapter 7 Troubleshooting Strange noises are Clean the filter. See "6.3 The condenser filter is clogged. heard. Maintenance". Clean the test area. See "6.3 Lingering odors inside the cabinet Strange odors are Maintenance". detected. Specimens are generated odors. Remove the source of the odor. The cabinet is wet on There is nothing wrong with the The room is highly humid.

  • Page 94: User Practical Servicing

    Chapter 7 Troubleshooting 7.3 User Practical Servicing Defrosting Frost may form on the cooler in temperature (humidity) operations below 30 ~ 40°C. Defrost the cabinet in the following cases. • If temperature (& humidity) inside the cabinet is uncontrollable or rises slowly •...

  • Page 95: Appendix

    Appendix Appendix A. Major Specifications Table A.1 Temperature and Humidity cabinet specifications Model LH-113 LHL-113 LHU-113 Temperature/humidity Balanced temperature and humidity control system(BTHC system) control system Power supply 100V AC 1φ 50/60Hz Maximum current (A) Allowable operating range 0 Ambient temperature Temperature-Humi (Amb.
  • Page 96 Appendix • Performance values are given for +23 °C ambient 95%RH temperature and no specimens inside cabinet. • LH-113 is without a dehumidifying-cooler. Therefore, temperature-humidity control range, and especially the low temperature range, will 45%RH vary according to installation environmental conditions (ventilation, fluctuation in room temperature/humidity, etc.).

  • Page 97: Low Temperature Cabinet

    Appendix Table A.2 Low Temperature Cabinet specifications Model LU-113 Temperature control Balanced temperature control system(BTC system) system Power supply 100V AC 1φ 50/60Hz Maximum current (A) Ambient temperature Allowable operating range 0 Temperature range Temperature fluctuation Temperature uniformity External Cold-rolled rust-proof steel plate (Melamine baked finish) Internal 18-8 Cr-Ni stainless steel plate Insulation...

  • Page 98: Temperature (Humidity) Control

    Appendix B. Temperature (Humidity) Control Temperature (and Humidity) Control The temperature (and humidity) cabinet employs a BTHC (Balanced Temperature [and Humidity] Control) system to control temperature (and humidity). The BT(H)C system balances temperature (and humidity) inside the cabinet in order to reproduce the desired conditions. This is done by continuously controlling the capacity of a heater of low heat load and a humidifying heater , in real-time.

  • Page 99: Parts Construction

    Appendix C. Parts Construction Table C.1 Parts construction Material Qty. Where used Metals (Some names are generalized.) 18-12-2.5 Cr-Ni-Mo stainless 0.6kg Humidifying heater steel 18-8 Cr-Ni stainless steel 28.4kg Test area Cabinet stand, mechanical parts Steel 52.6kg compartment, outer shell Copper 4.5kg Refrigerator piping...

  • Page 100: Consumable Parts And Replacement Interval

    The below parts must be replaced periodically. Promptly replace them at the specified interval if not sooner.  Maintenance service is also provided by ESPEC ENGINEERING CORP.  For spare parts and servicing, contact the place of purchase, ESPEC ENGINEERING CORP. or ESPEC CORP.   ...

  • Page 101: Options

    The following options are available for temperature (and humidity) cabinets. They effectively amplify cabinet applications and make operation that much easier. For options and cabinet compatibility, contact the place of purchase or ESPEC CORP. Safety Devices Specimen power supply control terminal...
  • Page 102 Appendix Cable port rubber plug Rubber plug for plugging up cable port. φ25,φ50,φ100 mm Shelf and shelf brackets Same as those included with the cabinet. Inner door Glass door that allows specimen viewing from the outside. Standard performance specifications are not satisfied because of the inner door modification.

  • Page 103: Instrumentation Displays

    Appendix F. Instrumentation Displays Approx. 1 sec after the POWER key is pressed, the display panel and lamps light up. Monitor Mode Approx. 1 sec after that, the cabinet model is displayed. While on standby or in constant mode While running under remote While running in program mode RUN lamp does not light while cabinet is on control mode...
  • Page 104 Appendix Constant Setup Mode Target temperature Target CONST SET temperature Target humidity Set with keys. Enter with ENT. Humidity control ON/OFF With LU cabinet, humidity figures and %RH are not displayed. Humidity control CONST SET "OFF" is displayed with humidity control is OFF. These monitor items are automatically skipped with OFF/ON 14,15...

  • Page 105: Prgm Set

    Appendix Program setup Program edit task selection Setup exposure time Number of repeat cycles EDIT/CLEAR Program edit task selection Setup Number of exposure time repeat cycles PRGM SET PRGM SET PRGM SET 0.00 99.59 0 ~ 99 EDIT/ 100 999 CLER min.
  • Page 106 Appendix Alarm Setup Mode Communication Setup Mode (option) E-BUS equipped cabinet RS-232C equipped cabinet Absolute high limit temperature alarm Communication setup top display Communication setup top display Absolute Communication Communication high limit setup top display setup top display temperature ALARM SET SYSTEM SYSTEM Set with...
  • Page 107 Appendix User Setup Mode System Environment Monitor Mode System environment monitor User setup top display top display User settings System top display environment monitor top display SYSTEM SYSTEM Setup key lock ON/OFF Cabinet model code Settings Chamber key lock model OFF/ON SYSTEM SYSTEM...

  • Page 108: Program Sheet

    Appendix G. Program Sheet To create your programs on paper, copy this page and fill in the information as necessary. Temperature Humidity %RH Time (h:min) Step No. Step No. Temperature and humidity link control Target temperature Humidity control ON/OFF Target humidity Step exposure time Soak control...
  • Page 109 User's Manual Temperature and Humidity Cabinet & Edited and Published by: Low Temperature Cabinet LH-113, LHL-113, 3-5-6, Tenjinbashi, Kita-ku, Osaka 530-8550, Japan Tel:81-6-6358-4741 Fax:81-6-6358-5500 LHU-113, LU-113 April 1.2002 Seventh Edition Printed in Japan Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 110 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...

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