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MRF 16/22

16

MF 55-GB 1.21

4.7

Rating label, RS 232 port and cooling fans

Case cooling fan outlet

Chimney

Control box cooling fan outlet

Magnetron cooling
fan outlet

Magnetron cooling
fan intake

Microwave circuit
cooling fans outlets

RS 232 port

Rating label

The case and control box cooling fans will be on when the power is turned on.
The magnetron and microwave circuit cooling fans will switch on 10 seconds before the
microwave power comes on and will remain on for a few minutes after the MW power goes off.

Figure 4.1 Rating label, RS 232 port and cooling fans

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Содержание MRF 16

Страница 1: ...it can be used See section 3 6 for details This manual is for the guidance of operators of the MRF 16 22 furnace and should be read before the furnace is connected to the electricity supply It contai...

Страница 2: ...AGE IN HUMID CONDITIONS 8 WARNING SYMBOLS 9 3 Installation 10 3 1 UNPACKING HANDLING 10 3 2 LOCATION 10 3 3 INTERNAL UNPACKING 11 3 4 ELECTRICAL CONNECTIONS 11 3 5 LOW VOLTAGE COMPENSATION 11 3 6 SWIT...

Страница 3: ...OGRAM 26 8 5 TO STOP AND RESET A PROGRAM 26 8 6 TO RUN A DIFFERENT PROGRAM 26 8 7 PROGRAM CYCLING 26 8 8 PROGRAM STATUS 26 8 9 HOLDBACK 27 8 10 POWER FAILURE RECOVERY 27 8 11 PROGRAM EXAMPLE 1 28 8 12...

Страница 4: ...G 40 12 9 TEMPERATURE CALIBRATION 40 12 10 MICROWAVE POWER DETERMINATION 41 12 11 AFTER SALES SERVICE 41 12 12 SPARE PARTS 41 13 Repairs replacements 42 13 1 SAFETY WARNING DISCONNECTION FROM SUPPLY 4...

Страница 5: ...ature control 19 5 4 Program editing 19 5 5 Microwave control 20 5 6 Microwave pulse control 20 8 1 Program example 1 27 8 2 Program example 2 28 11 1 Over temperature controller keys and Indicators 3...

Страница 6: ...ower can be applied continuously or as part of the program The MW power can be applied without the radiant heating for performance testing purposes or other applications 1 3 3508 Controller programmer...

Страница 7: ...operated at high temperatures do not touch 2 3 Door latches and safety interlocks When the door is closed and latched both the radiant heating and microwave power circuits are enabled When the door is...

Страница 8: ...antaneously to susceptible samples Unlike in MW only apparatus thermal reactions are not contained within or regulated by a reaction vessel or bomb In particular it is recommended that initially only...

Страница 9: ...ymbol WARNING all surfaces of a furnace may be hot DANGER read any warning printed next to this symbol FAULT read any information printed next to this symbol DANGER Microwave Energy read any warning p...

Страница 10: ...are inside holes located by the arrows in figure 3 1 above 3 2 Location Place the furnace in a well ventilated room away from other sources of heat on a suitable surface note the weight of the furnace...

Страница 11: ...easy reach of the operator It must be fused to give a level of discrimination between the MRF 16 22 internal fuses and the external isolation fuses See Product rating label for voltage and specificat...

Страница 12: ...MRF 16 22 12 MF 55 GB 1 21 has been set up there is a 2 position on the transformer primary side which may be used to compensate for this Safety note Refer to section 2 1...

Страница 13: ...ure is set to 20 C or the furnace will not cool down at the end of the cycle 4 Make sure the microwave timer is off and or set to zero or the microwave power will come on after the program has finishe...

Страница 14: ...lements and avoid shielding the thermocouple from the heating elements The thermocouple is designed to sense the temperature near the heating element but if a large object is placed in the chamber it...

Страница 15: ...C This will ensure that radiant heating power is not applied when the furnace is not in use after the end of a program or when using only the microwave power This furnace is designed for operation ove...

Страница 16: ...fan intake Microwave circuit cooling fans outlets RS 232 port Rating label The case and control box cooling fans will be on when the power is turned on The magnetron and microwave circuit cooling fan...

Страница 17: ...til the controller is reset See section 10 Temperature control See section 6 The 3508 can be used as a simple temperature controller PID Proportional Integral Derivative temperature control uses a com...

Страница 18: ...out notes about measurement at ambient temperature Over temperature limit controller Eurotherm 2132 set at 1625 C See section 10 Supply light and instrument switch When the furnace is connected to the...

Страница 19: ...gether 3 Press together to return to the home display or to acknowledge an alarm Page and up arrow together S Press together quickly to scroll back up the page headings Scroll and up arrow together 3...

Страница 20: ...rature and programming Controller home page display Measured temperature Setpoint temperature See section 6 Over temperature limit See section 10 Program Edit page Press page twice See section 8 Figur...

Страница 21: ...er percentage See section 7 1 MW countdown timer duration See section 7 2 MW countdown timer on off Starts stops the MW See section 7 3 MW on off pulse setting See section 7 4 MW pulse on duration See...

Страница 22: ...put The orange heat light s will light up The controller will immediately attempt to reach the SP as quickly as possible and maintain it Read section 4 5 for further notes about the Setpoint at ambien...

Страница 23: ...o be changed while a program is running 7 3 To switch on off the microwave power See figure 5 5 Press scroll 3 to select timer then up S down T to select on off 7 4 Pulsed microwave power See figure 5...

Страница 24: ...hen scrolling down the program editing page See navigation diagram section 9 1 All segments for the program are created here finishing with an End segment When parameters for each segment have been en...

Страница 25: ...r Call segments This segment function is available on the P10 P25 and P50 Select another program number to run as an intermediate program Call Cycles visible only for Call segments Set the number of t...

Страница 26: ...power on 1 MW power on Percentage level as set on the Microwave control page 1 2 MW power on Percentage level as set for the program segment Measured temperature Program setpoint temperature PSP MW p...

Страница 27: ...a holdback value has been set see Programming and the program goes into a hold state the red HLD indicator will flash until the measured temperature catches up If while in this condition the program...

Страница 28: ...e same time Press page twice On multi program models Press up S or down T to select a new program number a program with only 1 segment Now enter the parameters for the program segments Press scroll 3...

Страница 29: ...sh Press up S or down T to fill the second square in For segments 2 3 4 and 5 enter the following parameters and values Segment 2 Dwell Duration 30 00 0 minutes Micro 100 Event outs Segment 3 Rate Tar...

Страница 30: ...down T to set the time to zero Press scroll 3 then press up S or down T to set the timer to off If you want the MW power to pulse on off in the segments Press scroll 3 then press up S or down T to se...

Страница 31: ...splayed Leave this as it is Press scroll 3 Event outs is displayed The first square will be flashing Press up S or down T to fill the first square in Press scroll 3 The second square will flash Leave...

Страница 32: ...er on off Program Status Segments Used Timer Duration Program Setpoint Holdback Value Timer on off Reset User Value Ramp Units Pulse on off 1 0 Reset Events Program Cycles Pulse on Duration Program Se...

Страница 33: ...mp C SetPoint C Micro Temp C Prog Status Prog Nr Temp C Prog Edit Prog Nr Temp C Micro hrs mins sec Timer on off Segment nr Segment time remaining Status Program Setpoint Current Segment Type Rate Tim...

Страница 34: ...Press hold for 3 seconds Access Go to Level 1 S Press to select level 2 Access Pass code S Press to select code 9 Home display Level 1 Level 2 ProgStat Program ProgEdit Program To enter Level 2 Level...

Страница 35: ...dual calibration points and offsets in to the controller See navigation diagram 9 3 First access level 2 of the controller From the home display Press and hold page for 3 seconds to get to the level a...

Страница 36: ...hes and an alarm message 2FSH also flashes alternating with the setpoint Power to the heating elements is disconnected Resetting the over temperature alarm To acknowledge the alarm press Scroll 3 and...

Страница 37: ...ison using a calibrated heat source Controller calibration The controller and thermocouple connection cables must be calibrated by injecting milli volts down the thermocouple cables into the controlle...

Страница 38: ...le is 9 pin at both the furnace and computer The computer must have appropriate communication software installed such as Eurotherm s i Tools which is available from Carbolite 11 1 RS232 communication...

Страница 39: ...fan inlets and exhausts around the edge of the back panel The maximum allowable level of leakage is 5mW cm2 when measured in accordance with BS EN 60519 6 2002 part 6 1 12 4 Check the operation of the...

Страница 40: ...e up to 1500 C without load for 2 to 4 hours 12 8 Pesting The furnace is fitted with Molybdenum Disilicide elements which are susceptible to pesting Pesting can be seen as a yellowish crystal growth o...

Страница 41: ...es has a team of Service Engineers capable of repair calibration and preventive maintenance of furnace and oven products at our customers premises throughout the world Spare parts are available by mai...

Страница 42: ...aste fibre in sealed containers After handling rinse exposed skin with water before washing gently with soap not detergent Wash work clothing separately Before commencing any major repairs we recommen...

Страница 43: ...ument and withdraw it from its sleeve push in the replacement Contact Carbolite for a replacement controller correctly configured for this product Top Element tails MW shield lid Furnace door Left sid...

Страница 44: ...Type GG F15 F16 2 x HVF10 F1 F2 F3 F4 F5 F8 F14 3 x 25A 2 x 5A 1 X 30A 1 x 20A 10 x 38mm 5 x 20mm 10 x 38mm 10 x 38mm 380 415V 3 Phase plus Neutral STAR Type GG Type F N A Protistor Type GG F15 F16 2...

Страница 45: ...ctly replace the furnace back panel switch on the controller turn up the set point temperature so the elements begin to apply heat The measured temperature of the controller and PV of the over tempera...

Страница 46: ...ent The elements are fitted at the factory before delivery Remove the top panel and element MW shield lid See figure 13 1 Make a note of all the braid connections before removal Take photographs Remov...

Страница 47: ...n the heating chamber the element should not touch the bottom of the chamber Important When fitted there should be a minimum clearance of 10mm below the bottom of the element and a minimum clearance o...

Страница 48: ...3 8 Removing an Element Do not completely dismantle the assembly It is not necessary for replacing a washer Refer to figure 13 6 on page 44 for the location of the washers in the assembly Using two sp...

Страница 49: ...ht on the control panel is on The thermal cutout on the case or in the transformer has activated The SUPPLY light is ON The controller may be faulty or not receiving a supply due to a blown instrument...

Страница 50: ...h could have overloaded the thyristor Isolate the furnace if this fault persists C Microwave faults For any microwave faults contact Carbolite at the address given at the back of this manual 15 Enviro...

Страница 51: ...erivative the control system used by the controller Parameter A temperature or time value or program action Program A pre set sequence of segments to control temperature changes and time periods Progr...

Страница 52: ...mall part of the wide range of ovens chamber furnaces and tube furnaces manufactured by Carbolite for laboratory and industrial use For further details of our standard or custom built products please...

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