Phcbi MLR-352 Series Operating Instructions Manual
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Phcbi MLR-352 Series Operating Instructions Manual

Versatile environmental test chamber
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Please read the operating instructions carefully before using this product, and keep the operating
instructions for future use.
See page 65 for model number.
 
Operating Instructions
Versatile Environmental Test Chamber
MLR-352 
MLR-352H 
MLR-352H
 
Series

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  • Page 1 Operating Instructions Versatile Environmental Test Chamber MLR-352  MLR-352H    Series MLR-352H Please read the operating instructions carefully before using this product, and keep the operating instructions for future use. See page 65 for model number.  ...

  • Page 3: Table Of Contents

    CONTENTS INTRODUCTION ......................3 PRECAUTIONS FOR SAFE OPERATION ..............4 ENVIRONMENTAL CONDITIONS ................. 8 CHAMBER COMPONENTS ................... 9 Switch box ....................... 12 Control panel ......................13 Remote record terminal ................... 14 Remote alarm terminal .................... 15 INSTALLATION SITE ....................16 Caution for installation environment ................
  • Page 4 CONTENTS ROUTINE MAINTENANCE ..................52 Cleaning of unit ....................... 52 Replacement of fluorescent lamp ................52 Cleaning of evaporating tray ................... 53 Cleaning of filter ...................... 53 ALARMS & SAFETY FUNCTIONS Automatic set temperature alarm ................54 Automatic set humidity alarm (MLR-352H only) ............. 54 Safety functions .......................

  • Page 5: Introduction

    INTRODUCTION ■ Read the operating instructions carefully before using the Product and follow the instructions for safety operation. ■ PHC Corporation disavows any responsibility for safety if the Product is used for other than the intended use or used with any procedures other than those given in the operating instructions. ■...

  • Page 6: Precautions For Safe Operation

    PRECAUTIONS FOR SAFE OPERATION It is imperative that the user complies with the operating instructions as it contains important safety advice. Items and procedures are described so that you can use this unit correctly and safely. If the precautions advised are followed, this will prevent possible injury to the user and any other person.
  • Page 7 USA Only: This product has a fluorescent lamp that contains mercury. Disposal may be regulated in your community due to environmental considerations. For disposal or information, please visit PHC website: https://www.phchd.com. Contains mercury / Contenu avec mercure For more information on safe handling Pour plus de renseignements sur les procedures, the measures to be taken in procédures de manutention sécuritaire, les...
  • Page 8 PRECAUTIONS FOR SAFE OPERATION WARNING Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to rain water. Only qualified engineers or service personnel should install the unit. The installation by unqualified personnel may cause electric shock or fire. Install the unit on a sturdy floor and take an adequate precaution to prevent the unit from turning over.
  • Page 9 WARNING Ensure you do not inhale or consume medication or aerosols from around the unit at the time of maintenance. These may be harmful to your health. Never splash water directly onto the unit as this may cause electric shock or short circuit. Never put containers with liquid on the unit as this may cause electric shock or short circuit when the liquid is spilled.

  • Page 10: Environmental Conditions

    PRECAUTIONS FOR SAFE OPERATION CAUTION This unit must be plugged into a dedicated circuit protected by branch circuit breaker. Use a dedicated power source as indicated on the rating label attached to the unit. A multiple-tap may cause fire resulting from abnormal heating. Never store corrosive substances such as acid or alkali in this unit if the container cannot be sealed.

  • Page 11: Chamber Components

    CHAMBER COMPONENTS 1. Control panel: The control panel is used for setting temperature, humidity (MLR-352H only), light program and alarm. For the details, see page 13. 2. Door: 5 fluorescent lamps and 5 glow starters are attached inside the door. When the door is closed, it will be attached firmly to the body by a magnetic gasket.
  • Page 12 CHAMBER COMPONENTS Air intake vent 10, 11 Frost check window Air exhaust vent...
  • Page 13 5. Side door: 5 fluorescent lamps and 5 glow starters are mounted inside of the side doors (right and left). Open the door to replace fluorescent lamps or glow starters. 6. Switch box: Refer to page 12. 7. Door switch: When the door is opened, the air circulation fan stops to minimize the leakage of cool air. 8.

  • Page 14: Switch Box

    CHAMBER COMPONENTS Switch box Inside the switch box, there are the access port and the remote record terminal. 1. Access port When an instrument that requires a measuring cable and power cord is placed inside the cabinet, the cable and cord can be led through this access port. When a cord is led through, use the cap to prevent air from coming in or out.

  • Page 15: Control Panel

    Control panel 1. LCD panel 2. High limit temperature alarm volume (HIGH LIMIT) To set the temperature of high limit temperature alarm. 3. Low limit temperature alarm volume (LOW LIMIT) To set the temperature of low limit temperature alarm. 4. Menu button (MENU) To open the menu window.

  • Page 16: Remote Record Terminal

    CHAMBER COMPONENTS Remote record terminal The terminal output of remote recorder is temperature( C) 0 mV~100 mV, light step(LS) 0 mV~100 mV, relative humidity(%R.H.) 0 mV~100 mV. Please refer below for each control element. Terminal No.1 Common (-) No.2 Temperature ( C) (+) No.3 Light step (LS) (+)

  • Page 17: Remote Alarm Terminal

    Remote alarm terminal The terminal for the remote alarm is located in the data input/output port at the rear top of the frame (Refer to the figure below). To access the terminal, remove four screws on the rear frame by a screw driver and take out a cover.

  • Page 18: Installation Site

    INSTALLATION SITE To operate this unit properly and to obtain maximum performance, install the unit in a location with the following conditions: ■ A location not subjected to direct sunlight Do not install the unit under direct sunlight. Installation in a location subjected to direct sunlight cannot obtain the intended performance.

  • Page 19: Caution For Installation Environment

    Caution for installation environment ■ Suitable temperature range The acceptable ambient temperature range for this chamber is 5 C to 35 C. Avoid operating the chamber with an ambient temperature lower than 5 C. This may cause failure by freezing. ■...

  • Page 20: Installation

    INSTALLATION 1. Removing the packaging materials and tapes Remove all transportation packaging materials and tapes. Open the doors and ventilate the unit. If the outside panels are dirty, clean them with a diluted neutral dishwashing detergent. (Undiluted detergent can damage the plastic components. For the dilution, refer to the instruction of the detergent.) After the cleaning with the diluted detergent, always wipe it off with a wet cloth.
  • Page 21 5. Remove tapes for preventing dropout of door and both Water supply tank ends of side fluorescent lamps. 6. Set the evaporating tray enclosed in the chamber under the unit from the left side of the unit. (See Fig. 1 on page One-touch joint 7.

  • Page 22: Before Commencing Operation

    BEFORE COMMENCING OPERATION nstalling inner attachments 1. Shelves setting The 4 upper shelves (except the fifth one at the bottom) can be adjusted to desired height. To adjust the height, insert self-support clips (4 per shelf) into the slots at the desired height (Fig. 1). However the self-support clips for the bottom shelf should be inserted into the 4th and the 5th long hole counting from the lowest one, and their position should not be changed (Fig.

  • Page 23: Preventing Contamination

    CAUTION The chamber temperature is controlled by the forced air circulation. Do not block the air intake vent and air exhaust vent with the stored items or equipment. Blocking of these vents may cause unstable chamber temperature. CAUTION Never store acid, alkali or corrosive gas in this unit if the container cannot be sealed. These may cause breakdown due to discoloration or corrosion.

  • Page 24: Top Screen

    TOP SCREEN The top screen below is displayed when turning on the power switch. The default is; temp. 25.0 Light 0 LS, and 60 %R.H. (MLR-352H only). The date and time are preset at the factory. Refer to page 44 when more accurate setting is needed. 1.

  • Page 25: Functions Through Control Panel

    8. Display of date and time The current date (YYYY/MM/DD) and time is displayed. Note: The "input range" and the "control range" are not always the same. MLR-352/352H can only be controlled within the control range. The setting range in the text shows the actual "control range" if not indicated as "input range".

  • Page 26: Stanby Operation (Menu/Std-By)

    STANDBY OPERATION (MENU/Std-by) This product automatically operates with standby operation setting (temperature, light step, humidity (MLR-352H only)), when power ON and programmed running is finished. The setting can be changed as necessary. 1. When the top screen displayed, press the menu button (MENU) to show the menu window. Select “Std-by”, and press the enter key (ENTER).

  • Page 27: Setting Of Key Lock (Menu/Std-By)

    SETTING OF KEY LOCK (MENU/Std-by) Setting of Key Lock（Key Lock） 1. When setting of key lock, change the value of the key lock line from “0” to “1” in the stand-by setting screen(Stand-by Setting). 2. Press the menu button (MENU) and select “OK”, and press the enter key (ENTER). The key is locked.

  • Page 28: Setting Of Key Unlock (Key Unlock)

    SETTING OF KEY LOCK (MENU/Std-by) Setting of Key Unlock（Key Unlock） 1. When setting of key unlock, change the value of the key lock line from “1” to “0” in the stand-by setting screen (Stand-by Setting) and press the enter key (ENTER). 2.

  • Page 29: High Limit/Low Limit Alarm (Menu/Std-By)

    HIGH LIMIT/LOW LIMIT ALARM (MENU/Std-by) A high limit temperature alarm and low limit temperature alarm are provided with this product. The alarm temperature can be changed as follows: 1. With the top screen displayed, press the menu button (MENU) to show the menu window. Select “Std-by”, and press the enter key (ENTER).

  • Page 30: Programming (Menu/Edit)

    PROGRAMMING (MENU/Edit) This product has two modes, which are clock mode and timer mode. The clock mode is used to set a change time to the next step in a day time (24 hours). The timer mode is used to set a time for each step directly and the remained time is displayed.
  • Page 31 4. A model program is displayed. The screen is scrolled to the next page by using the rightward shift key. The step number (Stp :step) and cycle number (Cyc :repeat number) can be changed on the top left corner (8 Stp 1 Cyc) of the screen. Highlight the numerical value by shift key, and input 10 Stp 31 Cyc by character input key.
  • Page 32 PROGRAMMING (MENU/Edit) 5. Highlight the numerical value of each time section (Time) by shift key, and input as below by character input key. Note: · The time setting value differs between clock mode and timer mode. In the case of clock mode, the setting range is between 00:00 and 23:59.
  • Page 33 7. Shifting a cursor downward by downward shift key moves to the next edit “Light” (light step). Set a light step as below. The setting range is between 0 and 5. During light step setting, “LS” is displayed at upper left. 8.
  • Page 34 PROGRAMMING (MENU/Edit) 9. At the completion of all input, press the menu button (MENU) to show the menu window. Select “Save”, and press the enter key (ENTER). Save Program screen is opened. S a v e P r o g r a m P r o g r a m 10.
  • Page 35 Example 2: STEP TIME To create the following program with timer Temperature ( mode and name “NIKKO”. The cycle is 99, Humidity (%R.H.) that is limitless repeat. Light step (LS) 1. Display a model program as shown on page 28. Change the step number and cycle number to 2Stp and 99Cyc by character input key.

  • Page 36: Edit Of Saved Program (Menu/Edit)

    EDIT OF SAVED PROGRAM (MENU/Edit) 1. With the top screen displayed, press the menu button (MENU) to show the menu window. Select “Edit”, and press the enter key (ENTER). 2. The saved programs are shown. Select a program (for example : Oze) to be edited and press the menu button (MENU).

  • Page 37: Start Of Program (Menu/Run)

    START OF PROGRAM (MENU/Run) 1. With the top screen displayed, press the menu button (MENU) to show the menu window. Select “Run”, and press the enter key (ENTER). 2. Program Name Stored screen is opened. Select “Oze” and press the menu button (MENU) when starting “Oze”...
  • Page 38 START OF PROGRAM (MENU/Run) 4. The selected program is displayed. Check the program and press the menu button (MENU) to show the menu window. Select “Start”, and press the enter key (ENTER). O z e C y c 1 / 3 1 C l o c k ℃...

  • Page 39: Join Function

    JOIN FUNCTION The unit has join function to run several programs continuously. The maximum program to be joined is 9. The setting of join function is as follows: 1. When joining three programs Spring, Summer and Autumn, input the same character string, # , and one digit figure (joined order) before the each program name.

  • Page 40: Skip Of Step (Menu/Skip)

    SKIP OF STEP (MENU/Skip) During the programmed running, the skip function is effective to skip a current step in the program. 1. Press the menu button (MENU) to show the menu window and select “Graph” when the top screen is displayed.

  • Page 41: Stop Of Program (Menu/Stop)

    STOP OF PROGRAM (MENU/Stop) During the programmed running, it is possible to stop the running at any step. 1. Press the menu button (MENU) to show the menu window and select “Graph” when the top screen is displayed. Then press the enter key (ENTER). 2.

  • Page 42: Automatic Defrost (Menu/Tools/Date Time)

    AUTOMATIC DEFROST (MENU/Tools/Date Time) This product has a main evaporator to control the chamber temperature low, and a sub evaporator (MLR-352H only) to control the chamber humidity low. Automatic defrost function defrosts the frost on the main and sub evaporators automatically at 3:00 a.m. and 3:00 p.m. in a day. Following 3 defrost patterns are selectable.

  • Page 43: Manual Defrost (Menu/M.def)

    MANUAL DEFROST (MENU/M.def) The manual defrost function is to defrost the frost on the main evaporator at any time when you need. The manual defrost can be started during programmed running, standby operation, or automatic defrosting. The manual defrost function is applied to the sub evaporator too. When a lot of frost on the main evaporator is found through the frost check window, start the manual defrost.

  • Page 44: Various Setting (Menu/Tools)

    VARIOUS SETTING (MENU/Tools) The log can be displayed and various setting can be changed by using “Tools” menu. 1. Press the menu button (MENU) with the top screen displayed to show the menu window. Select “Tools, and press the enter key (ENTER). 2.
  • Page 45 Data transmission The procedure to transmit the log data to a PC is as follows. 1. Press the menu button (MENU) to show the menu window. Select “PC 1D”, and press the enter key (ENTER) when the log for one day is necessary. Select “PC All”, and press the enter key (ENTER) when all data recorded is necessary.

  • Page 46: Setting Of Date, Time, Log (Tools/Date Time)

    VARIOUS SETTING (MENU/Tools) Setting of date, time, log (Tools/Date Time) 1. Select “Date Time” in the Select Tools screen. Press the menu button (MENU) to show the menu window. Select “OK”, and press the enter key (ENTER). 2. The Date Time screen is displayed. Set date, time, or log cycle. ■...

  • Page 47: Alarm Setting (Tools/Alarm Setting)

    Alarm setting (Tools/Alarm Setting) 1. Select “Alarm Setting” in the Select Tools screen. Press the menu button (MENU) to show the menu window. Select “OK”, and press the enter key (ENTER). 2. The Alarm Setting screen is displayed. On this screen, the automatic set temperature alarm (Temp Alarm), the automatic set humidity alarm (RH Alarm) (For MLR-352, it is not possible to set), the automatic set temperature alarm delay time (Alarm Delay), alarm resume time (Ring Back), the door alarm delay time (Door Alarm Delay) and door alarm resume time (Door Ring Back) can be set.

  • Page 48: Key Lock Password Setting (Tools/Key Lock Pw Setting)

    VARIOUS SETTING (MENU/Tools) Key lock password setting (Tools/Key Lock PW Setting) 1. Select “Key Lock PW Setting” in the Select Tools screen. Press the menu button (MENU) to show the menu window. Select “OK” and press the enter key (ENTER). 2.

  • Page 49: Default Setting (Tools/Default Setting)

    Default setting (Tools/Default Setting) 1. Select “Default Setting” in the Select Tools screen. Press the menu button (MENU) to show the menu window. Select “OK”, and press the enter key (ENTER). 2. The Default Setting screen is displayed. Set the default for each parameter as necessary. D e f a u l t S e t t i n g L C D...

  • Page 50: Delete Of Program (Tools/Delete User Data)

    VARIOUS SETTING (MENU/Tools) Delete of program (Tools/Delete User Data) 1. Select “Delete User Data” in the Select Tools screen. Press the menu button (MENU) to show the menu window. Select “OK”, and press the enter key (ENTER). 2. The Delete User Data screen is displayed. To select a program to be deleted, select “Delete a User Program”...
  • Page 51 5. To deleting all programs, select “Delete All User Programs” in Delete User Data screen and press the menu button (MENU) to show the menu window. Select “OK” and press the enter key (ENTER). D e l e t e U s e r D a t a M E N U...

  • Page 52: Light Step (Illuminance Setting)

    LIGHT STEP (ILLUMINANCE SETTING) The light step is for maintaining a constant illuminance within the chamber. The relationship between the light step (LS) and a number of fluorescent lamps to be lit is as follows: Light Step (LS) Fluorescent lamps to turn on The graph below shows the relationship between the light step setting, illuminance, and photosynthetic photon flux density (PPFD) characteristics.

  • Page 53: Humidity Control (Mlr-352H Only)

    HUMIDITY CONTROL (MLR-352H ONLY) The chamber humidity can be controlled within any value between 55 %R.H. and 90 %R.H.. RH though the keys on the control panel. Input of any value outside of this range is invalid. The humidity control operates when the temperature setting is between the range 15 C and 45 C.

  • Page 54: Routine Maintenance

    ROUTINE MAINTENANCE WARNING Always disconnect the power supply to the unit prior to any repair or maintenance of the unit in order to prevent electric shock or injury. Ensure you do not inhale or consume medication or aerosols from around the unit at the time of maintenance.

  • Page 55: Cleaning Of Evaporating Tray

    Cleaning of evaporating tray This tray catches defrosted water from evaporator and evaporates the water. Clean the tray with water twice or 3 times a year. Refer to page 11 for taking out or replacing of the tray. Cleaning of filter This product is provided with a condenser filter in the lower front.

  • Page 56: Alarms & Safety Functions Automatic Set Temperature Alarm

    ALARMS & SAFETY FUNCTIONS Automatic set temperature alarm The temperature alarm functions incorporated in this unit include automatic set temperature alarm other than high/low limit temperature alarm. This function operates when the chamber temperature deviates from the set value by more than the alarm temperature (±1.0 C~±10.0 C changeable).
  • Page 57 This unit has the alarms and safety functions shown below, and also self diagnostic functions. Alarms & safety Situation Indication Buzzer Safety operation Remote alarm with alarm delay time The chamber temp. is out of delay. The current the set value ± 2.5 Intermittent tone High alarm;...
  • Page 58 ALARMS & SAFETY FUNCTIONS Alarms & safety Situation Indication Buzzer Safety operation “Error 07: Def.S The sensor resistance sensor is opened” Defrost sensor corresponds to -50 C or less. is displayed in the top Sub evaporator (sub evaporator) screen. heater OFF Intermittent tone Abnormality Defrost OFF...

  • Page 59: Troubleshooting

    TROUBLESHOOTING If the unit malfunctions, check out the following before calling for service. Malfunction Check/Remedy Nothing operates even ■ The unit is not connected to the power supply or capacity of power when switched on source is not enough. ■ There is a power failure, the fuse is blown, or the circuit breaker is activated.

  • Page 60: Disposal Of Unit

    DISPOSAL OF UNIT WARNING If the unit is to be stored unused in an unsupervised area for an extended period ensure that children do not have access and doors cannot be closed completely. The disposal of the unit should be accomplished by appropriate personnel. Always remove doors to prevent accidents such as suffocation.
  • Page 61 (English) Disposal of Old Equipment and Batteries Only for European Union and countries with recycling systems These symbols on the products, packaging, and/or accompanying documents mean that used electrical and electronic products and batteries must not be mixed with general household waste. For proper treatment, recovery and recycling of old products and used batteries, please take them to applicable collection points in accordance with your national legislation.
  • Page 62 DISPOSAL OF UNIT (French) L’élimination des équipements et des batteries usagés Applicable uniquement dans les pays membres de l’Union européenne et les pays disposant de systèmes de recyclage. Apposé sur le produit lui-même, sur son emballage, ou figurant dans la documentation qui l’accompagne, ce pictogramme indique que les piles, appareils électriques et électroniques usagés, doivent être séparées des ordures ménagères.
  • Page 63 (Portuguese) Eliminação de Equipamentos Usados e Baterias Apenas para a União Europeia e países com sistemas de reciclagem Estes símbolos nos produtos, embalagens, e/ou documentos que os acompanham indicam que os produtos elétricos e eletrónicos e as baterias usados não podem ser misturados com os resíduos urbanos indiferenciados.
  • Page 64 DISPOSAL OF UNIT (Dutch) Het ontdoen van oude apparatuur en batterijen. Enkel voor de Europese Unie en landen met recycle systemen. Deze symbolen op de producten, verpakkingen en/of begeleidende documenten betekenen dat gebruikte elektrische en elektronische producten en batterijen niet samen mogen worden weggegooid met de rest van het huishoudelijk afval.

  • Page 65: Performance Data (Mlr-352H)

    PERFORMANCE DATA (MLR-352H) 1. Pull down, pull up performance (The chamber temperature of center) Ambient temperature: 20 POWER: 50 Hz Fluorescent lamp 15 fluorescent lamps turn on 2. Acceptable heat load inside a chamber The maximum heat load being possible to maintain the setting temperature varies depending on the ambient temperature and the number of fluorescent lamp lighting.

  • Page 66: Specifications

    SPECIFICATIONS Versatile Environmental Test Chamber Versatile Environmental Test Chamber Product name MLR-352 MLR-352H External dimensions W760 mm x D700 mm x H1835 mm Internal dimensions W520 mm x D490 mm x H1135 mm Effective capacity 294 L Exterior Painted steel Interior Stainless steel, Paired glass window on right and left side (370 mm x 1110 mm) Door...

  • Page 67: Performance

    PERFORMANCE Product name Versatile Environmental Test Chamber MLR-352 Model number MLR-352-PK MLR-352-PB MLR-352-PE Temperature input range C to +52 Temperature control range C to +50 C (light ON), 0 C to +50 C (light OFF) Temperature distribution ±3.5 C (light ON), ±1.5 C (light OFF) (Ambient temp: 20 C, no load, humidity control OFF)

  • Page 68: Safety Checksheet

    CAUTION Please fill in this form before servicing. Hand over this form to the service engineer to keep for his and your safety. Safety check sheet 1. Chamber contents : □ □ Risk of infection: □ □ Risk of toxicity: □...
  • Page 72 1-1-1 Sakada, Oizumi-machi, Ora-gun, Gunma 370-0596, Japan Printed in Japan LDCL043900-0 © PHC Corporation 2018 S0418-0...

This manual is also suitable for:

Mlr-352h seriesMlr-352hMlr-352-pkMlr-352-peMlr-352-pbMlr-352

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