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Chapter 7 Troubleshooting

86

When the cause of the trouble has been eliminated

1. Check the alarm code

on the display.

2. Press either the

or

keys to silence the buzzer. The alarm

code is cleared.

Alarm Table

Table 7.1 Alarm table

Ty

pe

Displayed alarm

code/channel
code (option)

Trouble Cause

Remedial

action

1st

0

The room temperature
compensation input to the
temperature controller was
disconnected. The cabinet
has been stopped.

The sensor is loosely
connected to the RTD
terminal on the
ES102C temperature
controller board or
there is an open
circuit on the ES102C
board.

Turn control power OFF from the

POWER key and resume

testing. If the same alarm occurs
again, call for service.

1st

0

The dry-bulb input to the
temperature controller was
disconnected. The cabinet
has been stopped.

The sensor is loosely
connected to the CH1
terminal on the
ES102C temperature
controller board or
there is an open
circuit in the
connected
thermocouple.

Turn control power OFF from the

POWER key and resume

testing. If the same alarm occurs
again, call for service.

1st

0

(Not applicable

to LU

cabinet)

The wet-bulb input to the
temperature controller was
disconnected. The cabinet
has been stopped.

The sensor is loosely
connected to the CH2
terminal on the
ES102C temperature
controller board or
there is an open
circuit in the
connected
thermocouple.

Turn control power OFF from the

POWER key and resume

testing. If the same alarm occurs
again, call for service.

2nd

1

The temperature inside the
cabinet has risen above the
upper deviation limit. The
heater has been stopped until
temperature returns within
range.

Either specimens
inside the cabinet are
generating heat or the
upper deviation limit
is set too low.

Remove the heat-generating
specimens and/or set the upper
deviation limit about 10°C higher
than the target temperature. When
temperature returns within range,
normal control is restored
automatically. The alarm can be
cleared by pressing the

or

key.

Cont.

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

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Summary of Contents for LH-113

Page 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Page 2: ...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 A...

Page 3: ...erein 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...

Page 4: ...ous 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 possibi...

Page 5: ...inet 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 Communicat...

Page 6: ...ank 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 cab...

Page 7: ...hapter 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 2...

Page 8: ...rol 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 O...

Page 9: ...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...

Page 10: ...e area When exposed to excessive heat these substances may cause fires and or explosions Explosive Substances Inflammable Substances Cont Explosive Substances Nitroglycol nitroglycerine nitrocellulose...

Page 11: ...ion 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 ac...

Page 12: ...horten 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 temp...

Page 13: ...x 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...

Page 14: ...rature 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...

Page 15: ...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 and are not working Time Cabinet tempe...

Page 16: ...ing 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 fal...

Page 17: ...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...

Page 18: ...ide 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...

Page 19: ...ing 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 T...

Page 20: ...el 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 l...

Page 21: ...ater Drain port Releases internal pressure buildup and drains overflow from the humidifying tray to the outside Test Area Wet bulb temperature sensor Detects wet bulb temperature test area humidity Ca...

Page 22: ...up in the constant mode PRGM lamp Lit up in the program mode PV lamp Lit solidly while the test area temperature is displayed SV lamp Lit solidly while the target temperature is displayed Digital lamp...

Page 23: ...oor which is strong even to bear the weight of the equipment Where subjected to only minimal mechanical vibrations Where not exposed to direct sunlight but which is well ventilated Where ambient tempe...

Page 24: ...ened It must also be a safe distance from objects on the front side so that the door can be opened A Min 300 mm B Min 300 mm C Min 650 mm D Min 300 mm A specimen power supply control terminal option c...

Page 25: ...upply work remove the sponges If left inside the cabinet they can absorb water and moisture and provoke leaks 1 Detach the water circuit compartment panel 2 Carefully open the lids to the wick pan wat...

Page 26: ...ground drainage will flow back into the test area Gravity drainage is used with temperature and humidity cabinets so keep the drain hoses sloped downward to prevent pockets from forming in the line an...

Page 27: ...plies For 220V AC 7 A 230V AC 6 5 A and higher power supplies Fig 3 3 Electrical outlet with ground and power cable plug For electrical outlets without ground 100V AC 15 A 115V AC 13 A and higher powe...

Page 28: ...ide while the other is 8 mm wide Depending on the type commercially sold extension cords will not fit the plug Also extension cords are generally less reliable and less safe than fixed electrical outl...

Page 29: ...Press the POWER key and run the cabinet at 30 C and 40 RH For details see Chapter 4 Operation 1 Prepare a water source a minimum of 500 mm higher than the water tank nipple on the cabinet rear 2 Conn...

Page 30: ...from when the EMPTY first starts flashing until it shuts down completely Checking Water Level in the Humidifying Tray Check water in the humidifying tray is high enough Check that the humidifying heat...

Page 31: ...check 3 Reattach the water circuit heat exhaust compartment panel If water level in the humidifying tray water level regulator is low or high regulate it as follows 1 Loosen the position adjusting sc...

Page 32: ...ls so as not to block air circulation inside the test area Temperature humidity uniformity drops if air cannot flow freely which will throw off test results You may freely change the position of the s...

Page 33: ...the specimen power supply control terminals to apply voltage to specimens Using other means to charge specimens can drive up temperature inside the cabinet as specimens generate heat This can damage...

Page 34: ...h 1 A or more power Be sure to fit the line with a suitable capacity contactor and fuse Specimen Power supply for specimen Specimen power supply control terminal Fuse Test area Fuse Contactor Fig 4 4...

Page 35: ...rminals Insert the wire leads into the top 2 slots on the terminal plug and tighten the screw with a slotted head screwdriver Lead Specimen power supply control terminals These terminals are not used...

Page 36: ...n cables through the cable port Use a specimen cable that can withstand test conditions Refer to the following table for possible cable types Table 4 1 Cable type and withstand temperature Cable type...

Page 37: ...ough the top hole and the wick pan through the bottom hole Remove the wet bulb wick for temperature only tests especially if running the cabinet above ambient temperature Should the wick dry out it wi...

Page 38: ...h LU cabinet 1 Check water in the wick pan is at the level shown in the below figure Wick Pan Normally about 8 mm Fig 4 11 Wick pan water level 2 It takes time to fill the wick pan with water 3 If wat...

Page 39: ...nder remote control 1 Test area temperature humidity 2 Target temperature humidity 3 Time remaining to step end 4 Target step exposure time While on standby or in constant mode While running in progra...

Page 40: ...r ON OFF 11 Dry bulb temperature calibration 12 Wet bulb temperature calibration 3 E BUS transmission speed 1 Communication setup top display 2 E BUS address To monitor mode Communication setup mode O...

Page 41: ...igh low limit temperature humidity alarms BEFORE beginning tests Set alarms according to the type of specimens and test conditions Unless properly set the absolute high low limit temperature humidity...

Page 42: ...viation limit temperature the upper deviation limit temperature alarm trips For details on alarm settings see 1 2 Specimen Protection Safety Devices Upper deviation limit temperature Absolute high lim...

Page 43: ...Selects the digit ENT Enter changes Setting range Target temperature Absolute high limit temperature Highest settable temperature ALARM SET Press the NEXT key and move to the next setting 2 Absolute l...

Page 44: ...umidity Changes the value Selects the digit ENT Enter changes Setting range Target humidity Absolute high limit humidity 100 RH ALARM SET Press the NEXT key and move to the next setting 5 Absolute low...

Page 45: ...ts and inputs settings Selects the digit ENT Enters changes to settings Unless the ENT key is pressed changes you make to settings will not be updated NEXT Moves to the next setting In this manual ind...

Page 46: ...nters the selection Stands for Humidity CONST SET Press the NEXT key and move to the next setting 3 Target humidity Not necessary for LU cabinet Target humidity Changes the value Selects the digit ENT...

Page 47: ...the setting Make the setting Step 2 setup Enter the setting Input settings as needed for step 3 and after Make the setting Select END and press the ENT key Step Settings and Selections No temperature...

Page 48: ...s The program edit task selection will appear on the display Operation Selects and inputs settings Selects the digit ENT Enters changes to settings Unless the ENT key is pressed changes you make to se...

Page 49: ...mperature 20 Humidity control OFF 1 h Soak control ON 1 repeat cycle 2 repeat cycle 2 2 2 4 Number of steps Temperature and humidity link control Humidity control ON OFF ON ON ON ON 20 20 85 20 ON OFF...

Page 50: ...the old program and then set up the new program Select EDIT and press the ENT key Then go to the step edit content selection step 2 in this procedure 2 Step edit content selection STEP END SAVE Selec...

Page 51: ...ature humidity link control ON Go to the target temperature setting step 5 in this procedure OFF Turns temperature humidity link control OFF Go to the exposure time setting step 8 in this procedure EN...

Page 52: ...key PRGM SET Humidity control status ON Turns humidity control ON Go to the target humidity setting step 7 in this procedure OFF Turns humidity control OFF Go to the exposure time setting step 8 in th...

Page 53: ...a given step is counted down only while the temperature humidity is within the set attainment range for the set holding time So the time specimens are exposed to the target temperature will equal the...

Page 54: ...N in step No 1 setup Press the NEXT key and move to the next setting 11 Humidity ramp control ON OFF Not necessary for LU cabinet Select OFF and press the ENT key Then press the NEXT key In ramp contr...

Page 55: ...e next step No select STEP and press the ENT key 3 Input the setup No Input 2 and press the ENT key Then press the NEXT key 4 Turn temperature humidity link control ON Select ON and press the ENT key...

Page 56: ...elect OFF and press the ENT key Then press the NEXT key 10 Turn temperature ramp control OFF Select OFF and press the ENT key Then press the NEXT key 11 Turn humidity ramp control OFF Select OFF and p...

Page 57: ...have now completed program setup therefore select END and press the ENT key Step edit content selection STEP Selects step input END Moves to number of repeat cycles setting and end mode setting SAVE S...

Page 58: ...n The number of repeat cycles can be set between 0 and 99 If the number of repeat cycles is set to 0 the program will be executed as usual without repeating any specific part Stands for Counter PRGM S...

Page 59: ...ill appear on the display therefore correct the repeat range to satisfy the condition Repeat counter start step Repeat counter end step Number of registered steps Stands for End PRGM SET Press the NEX...

Page 60: ...t first saving the program changes you made to the program will be lost Step edit content selection STEP Selects step input END Moves to number of repeat cycles setting and end mode setting SAVE Saves...

Page 61: ...esumed by pressing the PRGM OPER STOP key However when the program is resumed it starts again from step No 1 You cannot switch between the program and constant modes while tests are running First stop...

Page 62: ...erature and humidity Test area temperature MONITOR SV CONST RUN RH Test area humidity Not displayed with LU cabinet If humidity control has been turned OFF OFF is displayed here Press the NEXT key and...

Page 63: ...umidity Not displayed with LU cabinet If humidity control has been turned OFF OFF is displayed here MONITOR SV CONST RUN RH Press the NEXT key and move to the next setting 2 Target temperature and hum...

Page 64: ...number of repeat cycles are displayed If 0 was set for the number of repeat cycles this monitor item is automatically skipped MONITOR PRGM RUN Stands for Counter Press the NEXT key and move to the ne...

Page 65: ...midity Not displayed with LU cabinet If humidity control has been turned OFF OFF is displayed here MONITOR SV CONST RUN RH REMOTE Press the NEXT key and move to the next setting 2 Target temperature a...

Page 66: ...splayed either in the range of 00 h 00 min to 99 h 59 min or 100 to 999 hours MONITOR PRGM RUN SV REMOTE h min Press the NEXT key and move to the next setting 1 Test area temperature and humidity Arti...

Page 67: ...ses reinforced glass do not subject it to string impacts HOT Immediately after operation at high temperature and high humidity hot air can be blown from the cabinet and hot water can drip from A in th...

Page 68: ...an jam the tip between the inner door and the cabinet door If this happens open the door and free the wiper Before closing the inner door check the wiper is not protruding outside the inner door frame...

Page 69: ...nication items Getting communication setup mode Set the main power switch in the ON position and press the POWER key With the temperature and humidity monitor on the display press the SET key 4 times...

Page 70: ...B and RS 232C communications see the Communication Function Option User s Manual 2 E BUS address Stands for E BUS Currently set address Selects and inputs settings Selects the digit ENT Enters changes...

Page 71: ...on the display While in the monitor mode press the SET key 5 times This will get the User Setup Mode and display the mode s top display Operation Selects and inputs settings Selects the digit ENT Ente...

Page 72: ...lows operation mode changes ENT Enters the selection When the operation lock is ON you cannot change the operation mode or turn the power OFF Stands for Operation Lock SYSTEM Press the NEXT key and mo...

Page 73: ...nment range Change the value Selects the digit ENT Enters the selection Setting range 0 1 Temperature attainment range 10 SYSTEM Press the NEXT key and move to the next setting 7 Temperature attainmen...

Page 74: ...inet Stands for Stability Humidity 2 Humidity attainment range sec Change the value Selects the digit ENT Enters the selection Setting range 1 second humidity attainment holding time 9999 seconds SYST...

Page 75: ...temperature is 60 0 C and the calibration value is changed from 0 0 C to 0 2 C while testing is in progress the display will read 59 8 C After that test area temperature is controlled to 60 0 C or 0...

Page 76: ...e offset 5 0 SYSTEM How to read the current wet bulb temperature Press the key until the far right digit starts flashing At that moment the wet bulb temperature will be displayed in the message area f...

Page 77: ...onitor Mode Set the main power switch in the ON position and press the POWER key With the temperature and humidity monitor on the display press the SET key 6 times The top display in the system enviro...

Page 78: ...the NEXT key and move to the next setting 4 Control software ladder version Stands for Ladder SYSTEM Version of currently installed control software Press the NEXT key and move to the next setting 1 S...

Page 79: ...gulator water level check Not necessary for LU cabinet Once every three months When cabinet is relocated See 3 4 Water Level Check Maintenance list For an explanation on each maintenance item see 6 3...

Page 80: ...leakage breaker in the main power switch trips the switch s lever falls halfway between the ON and OFF positions To turn power back ON again first set the switch to the OFF position and then to the ON...

Page 81: ...d the 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 th...

Page 82: ...e screw from the top of the lower front panel This will require a Phillips screwdriver 3 Lean the panel downward from its top edge and lift up and out at an angle Screw Lower front panel Fig 6 2 Detac...

Page 83: ...ater supply drain hose add water to the tank 4 When the tank is about 2 3 full drain it empty again 5 Repeat steps 3 and 4 two to three times Electromagnetic Pump Water Tank Protective Strainer Cleani...

Page 84: ...of projections or sharp edges inside the cabinet For your safety always wear gloves when working inside the cabinet HOT ON THE INSIDE Cool down the test area before cleaning the humidifying tray Durin...

Page 85: ...ry test 1 Open the cabinet door 2 Wipe walls and parts clean with a soft cloth 3 Close the door Water Circuit Heat Exhaust Compartment Cleaning Dust buildup inside the water circuit heat exhaust compa...

Page 86: ...t OFF primary power supply Drying the test area The cabinet is run to dry the test area Turn humidity control OFF and run the cabinet at a minimum 70 C for about 60 minutes After that crack the cabine...

Page 87: ...equipped with a buzzer that sounds when detects trouble as well as self check features which display the trouble on the instrumentation panel display Displayed alarm codes and their content are given...

Page 88: ...Set the main power switch in the OFF position 6 Remedy the trouble as explained in the Alarm Tables on the following pages 7 To resume operation set the main power switch in the ON position press the...

Page 89: ...cted thermocouple Turn control power OFF from the POWER key and resume testing If the same alarm occurs again call for service 1st 0 Not applicable to LU cabinet The wet bulb input to the temperature...

Page 90: ...overheat protector is set too low Turn control power OFF from the POWER key Remove the heat generating specimens and or correct the overheat protector setting Resume testing If the same alarm occurs a...

Page 91: ...een sufficiently supplied to the main water tank the alarm can be cleared by pressing the or keys If the same alarm occurs again call for service The instrumentation detected communication trouble bet...

Page 92: ...tion is strange System trouble or internal board trouble Switch the main power switch OFF and ON If the same trouble reoccurs call for service Something is caught in the door Remove the obstruction Fr...

Page 93: ...the specimen heat load Temperature gradually rises higher than the target temperature Frost has formed on the cooler Defrost the cabinet Not necessary for LH cabinets See 7 3 User Practical Servicing...

Page 94: ...viewing window on the inside If frost forms on the cabinet door gasket and alarm AL26 is displayed during temperature humidity operation Use this procedure to defrost packing as well How to defrost c...

Page 95: ...re heater Humidifier Sheathed heater Construction Refrigerator Air cooled hermetically sealed R134a Operation modes Program Constant setting Setter Mechanical key input Program memory capacity 1 progr...

Page 96: ...out a dehumidifying cooler Therefore temperature humidity control range and especially the low temperature range will vary according to installation environmental conditions ventilation fluctuation in...

Page 97: ...with 9 steps Repeat cycles 1 99 Control principle PID control Communications E BUS option GP IB option RS 232C option Temperature controller Functions Input burnout detection function upper and lower...

Page 98: ...ter of low heat load and a humidifying heater 2 in real time The central unit which controls everything is the temperature and humidity controller The instrumentation acts as the user interface Instru...

Page 99: ...Cabinet stand mechanical parts compartment outer shell Copper 4 5kg Refrigerator piping Brass 0 2kg Piping couplings Aluminum 2 5 kg Evaporator condenser Synthetics Plastic 5 0 kg Wiring insulation Ru...

Page 100: ...spare parts and servicing contact the place of purchase ESPEC ENGINEERING CORP or ESPEC CORP Table D 1 Consumable parts and replacement interval Part Replacement interval Replacement procedure Wet bu...

Page 101: ...ication function Enables cabinet operation and management from a cable connected PC station etc E BUS GP IB RS 232C Communications cable Cable used for communicating with PCs etc E BUS Select between...

Page 102: ...om the outside Standard performance specifications are not satisfied because of the inner door modification Portable water tank Replenishes water supply in the standard water tank inside cabinet Hose...

Page 103: ...ettings over 100 hours 5 8 is displayed when a running program is stopped 7 This monitor item is automatically skipped if 0 was set for the number of repeat cycles 11 12 is displayed when a program ru...

Page 104: ...15 These monitor items are automatically skipped with LU cabinets or when OFF is selected Target humidity 15 Constant Setup Mode Set with and keys Enter with ENT Set with and keys Enter with ENT Set w...

Page 105: ...keys Enter with ENT Set with and keys Enter with ENT Set with and keys Enter with ENT Set with and keys Enter with ENT PRGM SET PRGM SET PRGM SET PRGM SET PRGM SET PRGM SET PRGM SET PRGM SET PRGM SET...

Page 106: ...ter with ENT Set with and keys Enter with ENT Set with and keys Enter with ENT Set with and keys Enter with ENT Set with and keys Enter with ENT Set with and keys Enter with ENT Set with and keys Ente...

Page 107: ...nitor top display Cabinet model code ROM version Control software Ladder version SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM key key...

Page 108: ...7 1 2 3 4 5 6 8 9 Temperature and humidity link control Humidity control ON OFF Target humidity Humidity ramp control ON OFF Step No Soak control Target temperature Step exposure time Temperature ram...

Page 109: ...81 6 6358 4741 Fax 81 6 6358 5500 Printed in Japan User s Manual Temperature and Humidity Cabinet Low Temperature Cabinet LH 113 LHL 113 LHU 113 LU 113 April 1 2002 Seventh Edition Artisan Technology...

Page 110: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

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