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Thermo Scientific

10-1

Troubleshooting

Table 3. Furnace Troubleshooting.

Troubleshooting procedures involve working with high voltages

which can cause injury or death. Troubleshooting should only be

performed by trained personnel. This section is a guide to

troubleshooting controller and furnace problem.

Problem

Solution

Absence of current and presence of voltage on
element input terminal.

Heating element is cracked or open.
Replace broken element.

Heating element curls towards wall

1. Shut off immediately.
2. After the furnace cools, relocate the

element farther from wall.

Controller actual furnace temperature display
decreases when furnace is heating

Check thermocouple polarity. Red is always
negative (Refer to Section Troubleshoot-
ing).

Содержание BF51634BC-1

Страница 1: ......

Страница 2: ...54 USA Thermo Fisher Scientific Inc provides this document to its customers with a product purchase to use in the product operation This document is copyright protected and any reproduction of the who...

Страница 3: ...onstruction 2 4 Furnace Insulation 2 4 Thyristor Power Controller 2 4 Chapter 3 Pre Installation Unpacking 3 1 Furnace Assembly 3 1 Chapter 4 Installation Location 4 1 Power Wiring 4 1 Final Inspectio...

Страница 4: ...lay 8 1 Excess Temperature Option Feature 8 1 Operating Parameters 8 2 Excess Temperature Controller Operation 8 2 Chapter 9 Maintenance Circuit Breakers 9 2 Heating Element Replacement 9 2 Removing t...

Страница 5: ...4 2 Figure 3 Power Connections 4 3 Figure 4 UP150 Control Panel 6 1 Figure 5 Heating Element Repalcement 9 3 Figure 6 Door Insulation Replacement 9 7 Figure 7 Thermocouple Replacement 9 8 Figure 8 Wir...

Страница 6: ...List of Figures ii Thermo Scientific...

Страница 7: ...giene guidelines and the corresponding technical rules issued by the operator shall be used to create written procedures targeted at personnel working with the subject matter device detailing The deco...

Страница 8: ...lure to do so could result in death or serious injury to the user or bystanders and damage to the equipment and any load inside or property nearby This precaution warms of immediate hazards which will...

Страница 9: ...his equipment Failure to comply with this precaution could result in damage to equipment used or the furnace and may create an overheat situation Also do not use anything other than OEM exact replacem...

Страница 10: ...ing precautions will minimize airborne dust and fiber Keep personnel not involved in the installation out of the area Use a good vacuum to clean area and equipment Use a dust suppressant if sweeping i...

Страница 11: ...Fisher Scientific warrants the operational safety and functions of the Laboratory Box Furnaces only under the condition that The Laboratory Box is operated and serviced exclusively in accordance with...

Страница 12: ...ratory animals Flammability Non Combustible Reactivity Stable Ingestion May cause gastrointestinal disturbances such as irritation nausea vomiting and diarrhea Eyes Slightly to moderately irritating A...

Страница 13: ...ts exposed to doses corresponding to 200 f cc developed progressive lung damage interstitial fibrosis and cancers of the lung and of the pleura lining of the chest wall and lung Hamsters similarly exp...

Страница 14: ...its listed in the Ingredients Health Hazard Information section Use NIOSH or MSHA approved equipment when airborne exposure limits are exceeded Acceptable respirators rec ommended for various repairab...

Страница 15: ...tion of use Incom patible with strong acids and alkalies Hazardous Decomposi tion and By products None Spill or Release to the Environment Vacuum clean dust where possible Use a dust suppres sant if s...

Страница 16: ...airborne exposure limits may be exceeded especially in confined areas with inadequate ventilation Insulation surfaces should be lightly sprayed with H2O before removal to suppress airborne dust As wat...

Страница 17: ...re Product This product contains refractory ceramic fibers which have been identified by the International Agency for Research on Cancer IARC as possibly carcinogenic to humans Avoid breathing fiber p...

Страница 18: ...INFORMATION AND HANDLING INSTRUCTIONS REX ROTD CORPORATION P O BOX 980 FOWLERVILlE MI 48836 517 223 3787 Explanation of Safety Information and Symbols Safety Notes and Symbols Used Throughout These Op...

Страница 19: ...rds and Directives The Box Furnaces complies with the following standards and guidelines Current Approved Agency standards Underwriters Laboratory CSA CE Wear safety gloves Wear safety goggles Harmful...

Страница 20: ...Safety Notes Standards and Directives 1 14 Thermo Scientific...

Страница 21: ...ssembly consists of the box furnace and a control panel featuring a digital display controller a power module and a single circuit breaker for the furnace heating system Refer to T able 1 for specific...

Страница 22: ...with ammeter circuit breaker transformer and front panel indicators for open element fuse failure and power on Type B thermocouples ensure accurate high temperature measurement and long thermocouple...

Страница 23: ...does not illuminate in this condition Redundant over temperature controller option B provides positive protection for both furnace and the load ill the event of a control circuit failure This option...

Страница 24: ...opened Furnace Insulation The Thyristor Power Controller has been adjusted at the factory for the maximum designed power rating of your furnace model The factory settings are not user adjustable The...

Страница 25: ...Assembly The furnace is shipped completely assembled with all heating elements and the thermocouple installed Power connection wires to the furnace are not provided Inspect the furnace as follows 1 C...

Страница 26: ...he U hot section of each element is located approximately 1 2 inch from the inside surface of each side chamber wall To adjust a heating element a Hold the terminal end of the element b Apply even pre...

Страница 27: ...is manual The 1700 C Box Furnaces are designed for operation on apower source of either 240 or 208 volts single phase at 50 or 60 Hertz If operating on 208 volts change the wiring on the transformer f...

Страница 28: ...re 2 Furnace Rear Access 1 Remove the screws fastening the lower rear access panel to the furnace back Save the screws for later use 2 Label two lines L1 and L2 and label the ground wire Ground 3 Thre...

Страница 29: ...ts to a bare metal surface Always conform to wiring codes 6 Install the rear access panel with the screws removed in Step 1 Wire 1TB L1 L1 L2 L2 1TB is located include the back of the furnace and on t...

Страница 30: ...rol including inside the furnace 2 Check that the door insulation plug refer toFigure Laboratory Box Furnaces aligns with the furnace vestibule opening This plug is designed to reduce heat loss 3 Insp...

Страница 31: ...to insert and remove furnace load Do not allow the load to touch the furnace walls Always use a hearth plate on the furnace bottom This furnace should not be left unattended during the Initial break...

Страница 32: ...Turn the control circuit breaker on Depending on the specific constructions and there settings The red light on the control panel may illuminate and power may be applied to the elements Always wear t...

Страница 33: ...point temperature and if all Controls and indications are working the furnace is ready for use Furnace Operation It is not necessary to repeat the procedure in Section Initial Startup Procedure start...

Страница 34: ...ent 2 Turn the control circuit breaker off 3 When the furnace is cool shut of power at the main power disconnect switch To avoid nuisance alarms always change the alarm set point before changing the f...

Страница 35: ...UP550 temperature controller is a microprocessor based PID type controller that can store up to 30 programs programs are also referred to as patterns with up to 99 segments each or a single program o...

Страница 36: ...s in the Automatic mode Return to Automatic mode by pressing the MODE key until MODE AUTO appears with the flashing word changing Press the SETIENT key When entering and exiting the manual mode the fo...

Страница 37: ...tarting setpoint for the pattern and it is typically set at ambient temperature 7 Press SET ENT and STC 0 will appear which stands for start code Leave this setting at 0 8 Press SET ENT and TSP1 value...

Страница 38: ...up and down arrow keys to entera setpoint Press the SET ENT key to register the setpoint 4 While in the local mode it is recommended to enter an alarm value The alarm value should be approximately 10...

Страница 39: ...sing to the 9 pin port on the rear of the Thermo Fisher Scientific unit 3 Connect the other cable end with the RS 232 485 Convener to the COM 1 Port or other COM port of your choice on the rear of the...

Страница 40: ...another 20 minute segment 4 When the Configuration Found windows opens click on the Test Comms for New Config Button 5 The The Input Required window then opens Enter a new Config Name up to 8 charact...

Страница 41: ...r power to the control may have been interrupted 12 On some controllers the decimal point position has been changed from use Yokogawa factory default This will make the SpecView display differ from th...

Страница 42: ...guration Mode available through the file drop down while in the Run time Mode select the Variables List icon represented by a page with lines on it 2 Select the controller model number and select Prop...

Страница 43: ...ee second advances the dis play to the Operation Parameters Menu While in the Operation Parameters Menu use SET ENT to move from one parameter to next and to register changes you have made in set poin...

Страница 44: ...n to the normal display Changing Between Celsius and Fahrenheit The controller is factory set to operatewith degrees Celsius To change the display modes and parameter settings to the Fahrenheit scale...

Страница 45: ...The Ramp Rate feature allows the chamber to be heated or cooled at any rate slower than the maximum capability of the unit To fine tune ramp rates you may need to test using loads with similar mass a...

Страница 46: ...general purposes but your process can be enhanced through the auto tune feature For a given process temperature and product load auto tuning maximizes the performance of the chamber by operating with...

Страница 47: ...dicate that the auto tuning is in progress The length of time for the auto tune varies with the load chamber size and temperature selected The auto tune is completedwhen the regular display ofthe meas...

Страница 48: ...Communication Option Auto Tuning the Controller 7 10 Thermo Scientific...

Страница 49: ...re incident Pressing and releasing the SET ENT button once again shows the current temperature measured by the controller in the top display this may differ slightly from the main temperature controll...

Страница 50: ...Operating Parameters by holding the SET ENT button for three seconds Excess Temperature Controller Operation After the Excess temperature Setpoint and Hysteresis values are selected the controller is...

Страница 51: ...peak Exceeded Temperature will be lost In some inspires the OUT indicator is illuminated without a high temperature event In this TRIPPED OUT MODE the power to the heating element is introduced A sou...

Страница 52: ...Excess Temperature Option B Models Excess Temperature Controller Operation 8 4 Thermo Scientific...

Страница 53: ...area Use a good vacuum to clean area and equipment Do not use compressed air Use NIOSH high efficiently respirator 3M 8710 or equivalent Wear long sleeve clothing gloves hat and eye protection to mini...

Страница 54: ...ers are located at the rear of the furnace lower left side Press the switch to reset a circuit breaker Replace any circuit breaker that does not reset One control circuit breaker is located in front o...

Страница 55: ...cates an open circuit or a broken heating element 3 Remove the side access panel screws on the side of the furnace containing the broken heating element 4 Loosen the three side access panel screws loc...

Страница 56: ...e or more heating element complete the following steps 1 Make sure that the main power is disconnected at the disconnect switch 2 Very carefully unpack the replacement heating element s 3 Carefully re...

Страница 57: ...eplacement a Fit a braided strap over the outside circumference of the heating element terminal lead section The strap may require some hand forming for good contact between the terminal and the strap...

Страница 58: ...tions will minimize aIrborne dust and fiber Keep personnel not involved in the installation out of the area Use a good vacuum to clean area and equipment Use a dust suppressant if sweeping is necessar...

Страница 59: ...iodically check the furnace chamber temperature with a separate thermocouple and instrument to determine the amount of error The appropriate frequency of thermocouple replacement depends upon frequenc...

Страница 60: ...leads from the terminal screws on the thermocouple head 3 Lift the thermocouple vertically out of its hole in the top insulation 4 Replace the thermocouple and connectthe new wires Red is always nega...

Страница 61: ...ting controller and furnace problem Problem Solution Absence of current and presence of volt age on element input terminal Heating element is cracked or open Replace broken element Heating element cur...

Страница 62: ...ent above 995 C to restore coat ing Foreign substance on heating element Furnace temperature is too high Thermocouple a Check the thermocouple visually for breaks If a break is evident replace the the...

Страница 63: ...rol circuit breaker is on 2 Check that the red light is working Replace the light If necessary 3 Check that the door interlockswitch has a closed circuit when the door is closed Adjust or replace the...

Страница 64: ...Troubleshooting 10 4 Thermo Scientific...

Страница 65: ......

Страница 66: ......

Страница 67: ...BLOCKS SIX WIRES TOTAL 1 PAIR PER FAN TYP TYP 3 FAN 38 3A 3A COOLING FAN POWER ON ILT 4F 3F POWER CIRCUIT 108 109 A 32 108 109 51 60 75 12 1 50 ICB 60A RT POLE LT POLE TERMINAL SIDE OR REAR VIEW 30 IL...

Страница 68: ...INDIVIDUAL WIRE CONNECTIONS TO EACH FAN FUSE BLOCKS SIX WIRES TOTAL 1 PAIR PER FAN TYP TYP 3 FAN 38 3A 3A COOLING FAN POWER ON ILT 4F 3F POWER CIRCUIT 108 109 A 32 108 109 51 60 75 12 1 50 ICB 60A RT...

Страница 69: ...Thermo Scientific 12 1 12 Error Codes This chapter is not applicable...

Страница 70: ...Error Codes 12 2 Thermo Scientific...

Страница 71: ...izieren die unter diese RoHS Anweisung fillen finden Sie unter www thermo com WEEERoHS Italia Questo prodotto deve risponderealla direttiva dell unione Europea 2002 96EC in merito ai Rifiuti degli App...

Страница 72: ...WEEE Compliance 13 2 Thermo Scientific...

Страница 73: ...Thermo Scientific 14 1 14 14 Spare Parts and Accessories This chapter is not applicable...

Страница 74: ...Spare Parts and Accessories 14 2 Thermo Scientific...

Страница 75: ...Thermo Scientific 15 1 15 Device Log 1700 C Box Furnaces Part number Serial number Service number Location Operator s note Work carried out Notes Date Signed...

Страница 76: ...Device Log 15 2 Thermo Scientific...

Страница 77: ...112114 Email info labequipment de thermofisher com Enquiries from Europe Middle East and Africa Phone 49 0 6184 90 6940 Fax 49 0 6184 90 6772 E Mail info labequipment de thermofisher com Postal addres...

Страница 78: ...Contact 16 2 Thermo Scientific Enquiries from Asia Pacific Phone 852 2711 3910 Fax 852 2711 3858 E Mail info labequipment thermofisher com...

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