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Refrigerated Incubator

3-3

Thermo Scientific

Section 3

Preventive Maintenance

Caution

If the default low temperature alarm setpoint (1°C above setpoint)

is increased, the new alarm temperaure value will remain valid until power
is removed from the unit (turning off the power switch, unplugging or
power failure). When power is restored, the alarm setpoint will revert back
to the default.

s

Note

Software Version 2.00 and later has a 30 minute delay for the low

and high alarm to avoid nuisance alarms caused by door openings.

s

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Содержание 815

Страница 1: ...line to register your warranty www thermoscientific com labwarranty User Manual Thermo Scientific Precision Model 815 Refrigerated Incubator Microprocessor Controlled Operating and Maintenance Manual 7013721 Rev 2 ...

Страница 2: ...ated 3185052 schematic to 50 60Hz on pg 9 2 ccs 0 40096 4 3 15 Original new cabinet cooling On Off switch model numbers ccs Rev ECR ECN Date Description By Preface Refrigerated Incubator i Catalog Model Numbers Volume L cu ft Voltage PR505755R 3721 566 20 115 PR505750R 3722 566 20 230 PR505750R CN 3722CN 3723 566 20 230 Units covered in this manual ...

Страница 3: ...ing If the incubator is not used in the manner specified in this operating manual the protection provided by the equipment design may be impaired s Warning Depending on ambient temperature and settings surface can become warm to touch up to 60 C s Material in this manual is for information purposes only The contents and the product it describes are subject to change without notice Thermo Fisher Sc...

Страница 4: ...product is required to comply with the European Union s Waste Electrical Electronic Equipment WEEE Directive 2002 96 EC It is marked with the WEEE symbol Thermo Fisher Scientific has contracted with one or more recycling disposal companies in each EU Member State European Country and this product should be disposed of or recycled through them Further information on Thermo s compliance with this di...

Страница 5: ...or spare or replacement parts or provide you with on site service We can also provide you with a quotation on our Extended Warranty for your Thermo Scientific products Whatever Thermo Scientific products you need or use we will be happy to discuss your applications If you are experiencing technical problems working together we will help you locate the problem and chances are correct it yourself ov...

Страница 6: ...service at your location Calibration after a warranty repair is covered under the warranty Damage resulting from use of improper quality water chemicals or cleaning agents detrimental to equipment materials Service calls for improper installation or operating instructions Corrections to any of the following are billable services 1 electrical service connection 2 tubing connections 3 gas regulators...

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Страница 8: ...tion of Auxiliary Panel 1 4 Instrumentation Port 1 5 Installation 2 1 Safety Precautions 2 2 Operation and Calibration 3 1 Service 4 1 Troubleshooting 4 1 Symptoms and Possible Causes 4 1 Possible Solutions 4 3 Maintenance 5 1 General Cautions 5 1 Options 6 1 RS232 6 1 Setting Up the Incubator for Communication 6 2 Using the Communication 6 5 Setting up the Computer for Communication 6 5 Specifica...

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Страница 10: ...in transit must be made upon the carrier by the recipient as follows 1 Visible Loss or Damage Note any external evidence of loss or damage on the freight bill or express receipt and have it signed by the carrier s agent Failure to adequately describe such external evidence of loss or damage may result in the carrier s refusing to honor your damage claim The form required to file such claim will be...

Страница 11: ...mperature difference at chamber center point 1 point measurement Energy consumption Heat up time Cool down time from ambient temperature according to DIN 12880 Recovery time after door open ing according to DIN 12880 10 C 0 8 C 1 3 C 0 25 C 0 3 kW 80 min 10 min 20 C 0 5 C 0 9 C 0 15 C 0 6 kW N A N A 37 C 0 3 C 0 5 C 0 5 C 0 9 C 0 10 C 0 1 kW 0 6 kW 40 min 5 min 50 C 0 5 C 0 3 C 0 7 C 0 9 C 0 15 C ...

Страница 12: ... that support the parameter showing on the display The sixth indicator is for a high or low temperature alarm condition An internal audible alarm will also sound when this alarm indicator illuminates Power On Off Switch The Power On Off switch provides the main power to the incubator Cooling On Off Switch The On Off Cooling Switch provides better energy and temperature performance when setting a t...

Страница 13: ... above the fuse holder The physical size of this fuse is 5mm x 20mm 2 Alarm Relay This Alarm Relay output is provided to the user for the purpose of remotely monitoring the incubator in case of a high or low temperature alarm condition This alarm relay will operate just as the audible alarm would The contact itself is an isolated form C normally open normally closed dry contact This contact is to ...

Страница 14: ...llivolt degree C When the incubator is operating at a negative temperature the chart recorder output is still positive Use the chart below to relate temperature to output voltage Located on the chart recorder printed circuit board is an offset potentiometer R3 If for some reason the recorder output voltage does not match the temperature as shown in the chart this potentiometer can be used to tune ...

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Страница 16: ...ackets Rotate the brackets so they point straight out from the back Secure in place with the included hardware Attach brackets to wall The power cord is the mains disconnect Make sure the outlet and power cord are accessible at all times Caution The incubator should not be operated in an environment where the ambient temperature exceeds 90 F as the compressor thermo overload will be tripped and wi...

Страница 17: ...er in use Caution Be sure the power supply is the same voltage as specified on the nameplate s When loading the incubator a space of 1 2 must be allowed between adjacent items This will allow maximum air circulation which is necessary for proper temperature uniformity The uniformity will be adversely affected if air circulation is obstructed Liquid containers should never be placed in the incubato...

Страница 18: ...al temperature The same sequence of key operation is true for the use of the HIGH LOW LIMIT key To change the setpoint temperature Press the SET TEMP CAL key once Then press the UP or DOWN arrow key until the desired temperature is displayed When continuously pressing either the UP or DOWN keys the display will begin to change rapidly With a little practice one will become accustomed to this After...

Страница 19: ...e can be overridden if desired The following paragraph describes this Press the HIGH LOW LIMIT key once The green High Temperature Alarm Set Point indicator should be lit Use the UP or DOWN arrow keys to select your limit value Then press the ENTER key If the HIGH LIMIT value you have selected is below the operating SETPOINT TEMPERATURE the incubator alarm will activate Caution If the default high...

Страница 20: ...ased the new alarm temperaure value will remain valid until power is removed from the unit turning off the power switch unplugging or power failure When power is restored the alarm setpoint will revert back to the default s Note Software Version 2 00 and later has a 30 minute delay for the low and high alarm to avoid nuisance alarms caused by door openings s ...

Страница 21: ...Incubators Your equipment has been thoroughly tested and calibrated before shipment Regular preventive maintenance is important to keep your VOJU functioning properly The operator should perform routine cleaning and maintenance on a regular basis For maximum performance BOE efficiency it is recommended the unit be checked and calibrated periodically by a qualified service technician The following ...

Страница 22: ...rratic temperature control First the symptoms and possible causes will be listed for quick reference Solutions will be suggested later Warning Hazardous high voltage conditions exist inside the control panel unplug line cord and turn off line switch before removing the cover Only qualified electrical instrument personnel are authorized to perform troubleshooting and or servicing s Freeze up or gra...

Страница 23: ...olution 1 Low line voltage less than 110V see Solution 9 RTD Temperature Probe see Solution 3 Step D and or Solution 4 Power Supply PCB Assembly see Solution 3 Overcharged compressor see Solution 11 Differences between Temperature Set and Digital Temperature Readout see performance figures page 3 RTD Temperature Probe see Solution 3 Step D and or Solution 4 Malfunctioning Power Supply PCB assembly...

Страница 24: ...ates an open circuit it may or may not be open In series with the heater is a thermal overload switch It might be that this thermal overload is open and not the heater To check the heater and thermal switch directly the shelfs of the incubator and the back wall cover must be removed Unplug heater and measure its resistance If the resistance is correct check resistance between heater terminal and t...

Страница 25: ...surements will be DC voltage measurement so a DC scale of at least 10 volts should be selected Connect the negative lead to TP2 This is DC ground Also locate the terminal block TB1 B This first section will be to verify the heater command is correct from the microprocessor through the optoisolator and through the Triac when the incubator is NOT requesting heat The steps in this section must be fol...

Страница 26: ...r lamp on the front panel It should be on continuously not flashing 2 Measure the voltage at U1 Pin 2 with respect to TP2 It should be no greater than 4 volts DC 3 Measure the DC voltage across R4 since the incubator is requesting heat there should be current flowing through this resistor making the voltage drop equal to 3 volts 0 5 volts 4 If the last two steps are not as stated then most likely ...

Страница 27: ... stainless steel bracket attached on the rear wall and near the top of the chamber Two tube shaped clips securely support the RTD probe into place The RTD must be inserted fully into its support bracket 6 Constantly Experiencing Low temperature Alarm If the incubator is constantly going into low temperature alarm then most likely the setpoint temperature setting is too close to the low temperature...

Страница 28: ...chamber temperature will be affected Correct as necessary Caution The incubator should not be operated in an environment where the ambient temperature exceeds 90 F as the compressor thermo overload will be tripped and will result in a wide band control cycle of approximately 4 C Such cycling should not be misinterpreted as a malfunction of the electronic controls 11 Overcharged compressor This wou...

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Страница 30: ...ambient temperatures or in any manner that increases moisture buildup within the chamber an appropriate defrosting schedule must be determined Defrosting is accomplished by turning the incubator off for 24 hours Moisture will collect in the drip pan beneath the incubator 1 Overcharging a refrigeration system can cause excessive system pressure and can be dangerous 2 The compressor terminal protect...

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Страница 32: ...onnector on the RS232 PCB assembly see illustration 6 Replace the control panel and secure with the eight 8 screws The RS232 PCB provides a bi directional communication port that will allow the user to monitor the performance or the change the operating valves of the incubator from a remote computer RS232 Communication will require a communication program such as a modem program installed in your ...

Страница 33: ...data to be sent to your computer Read the following steps before performing any of them It will allow you to familiarize yourself with the procedure and to determine the values you want beforehand Note In the following setup mode there is a five 5 second time out feature that is active following each entry If the five 5 seconds is exceeded the unit will return to the normal operation mode If the t...

Страница 34: ...wing Again the number in the display might be different than 0 1 but it will have a decimal point Choose the number appropriate for the Status Update Time Interval desired 0 0 Minutes No report 0 1 Minutes Between reports 0 5 Minutes Between reports 1 0 Minutes Between reports 2 0 Minutes Between reports 5 0 Minutes Between reports 10 0 Minutes Between reports 30 0 Minutes Between reports 60 0 Min...

Страница 35: ...th English headings with continuous screen 2 Used for the format as 1 but preceded by a clear screen command used by terminals or computers running terminal software This mode overwrites the previous transmission With Status Display Type 0 10 5 0 0 Where 10 Actual Temperature 5 0 Setpoint Temperature 0 Normal With Status Display Type 1 or 2 Actual Temperature 10 Setpoint Temperature 5 0 Alarm Stat...

Страница 36: ...ne 1 COM Port Selected by user Format ASCII The incubator transmits information on its RS232 port as long as the status update time interval is not 0 0 If you start your communication software with the incubator on most likely you will see the error s messages as follows ERR VALUE IS READ ONLY ILLEGAL COMMAND Wait for the Status Update Time duration you selected to complete and the communications ...

Страница 37: ...emperature to 25 0 C type T25 0 CR Example 2 To change Setpoint Temperature to 8 C type T 8 CR A Actual Temperature The actual temperature within the incubator T Setpoint Temperature The temperature at which the user has selected the incubator to operate 6 6 Refrigerated Incubator Thermo Scientific Section 6 Factory Options Using the Communication continued View Command Description Unit Range Chan...

Страница 38: ...inutes V EPROM Version Number The incubator software version level D Status Display Type Selection of format that data is sent to your computer 0 Used for a raw one line status output suitable for importing into a spreadsheet 1 Used for a multi line format with English headings 2 Used for the format as 1 but preceded by a clear screen command used by terminals or computers running terminal softwar...

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Страница 40: ... linearly to 50 RH at 40 C Mains Supply Fluctuations Rated Voltage 10 Installation Category II Pollution Degree 2 Class of Equipment I Installation category overvoltage category defines the level of transient overvoltage which the instrument is designed to withstand safely It depends on the nature of the electricity supply and its overvoltage protection means For example in CAT II which is the cat...

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Страница 42: ...ABLE INTERFACE 3176759 FUSE KIT 10 AMP 115V 3167218 FUSE HOLDER KIT 115V 3167216 FUSE HOLDER KIT 230V 3167217 CORD W PLUG 115V 3178034 HARNESS 815 818 115V 3177651 CORD W PLUG 230V 3176551 HARNESS 815 818 230V 3177652 FUSE KIT 5 AMP 230V 3167219 RS232 COMMUNICATIONS OPTION 3166245 THERMAL CUTOFF SWITCH 400141 STOPPER KIT 3167215 BULB KIT 3167220 MOTOR FAN REAR 130630 AUTO TRANSFORMER 230V 3174991 ...

Страница 43: ...pare Parts Accessories Name Part Number Glass Thermometers 3173710 RS232 Interface Kit 3166245 Digital Chart Recorder 3166207 Chart Paper 100 sheets 3174255 Access Port Stopper 3167215 Shelf includes fall protection strip and shelf mounting grommets 3185275 ...

Страница 44: ...Refrigerated Incubator 9 1 Thermo Scientific Section 9 Electrical Schematics 3176814 3176813 3176707 3176815 3177654 3176720 3176804 3176759 3175264 COOLING ON OFF SWITCH ...

Страница 45: ... Thermo Scientific Section 9 Electrical Schematics Section 9 Electrical Schematics 3176814 3176813 3176707 3176815 3177654 3176720 3176804 3175264 9 5 7 6 7 1 3 BLK OR BRN GRN OR GRN YEL WHT OR BLU 50 60Hz COOLING ON OFF SWITCH ...

Страница 46: ...rmo Fisher Scientific and its subsidiaries Specifications terms and pricing are subject to change Not all products are available in all countries Please consult your local sales representative for details Thermo Fisher Scientific 401 Millcreek Road Marietta Ohio 45750 United States A Thermo Fisher Scientific Brand ...

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