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Bird Electronic Econoload 8730 Series, Инструкция

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Maintenance

17

Resistor Servicing

The load is designed to be quickly and easily repaired in the field. If a 
significant change in the dc resistance is noted or if the resistor 
should fail, inexpensive replacement resistors are available.

WARNING

Disconnect the unit from all power sources before servicing.

The unit may be energized from multiple sources.

The potential for electric shock exists.

Figure 7

Load Exploded View

Water Chamber Screws

(1/4-20 x 2-1/2

Socket Head Cap Screw)

4

Water Chamber

Assembly

3   

Resistor

1

Hose Fitting Straight

5

90°Hose

Fitting

5A

Ground Cap

Assembly

6

Inner Flow

Tube

7

Load

Housing

0

Outer Flow

Tube

7A

2

Resistor

Assembly

RF Section Screws

(1/4-20 x 1-1/2

Socket Head Cap Screw)

9

Center Conductor

Assembly

8   

Outer Conductor

Assembly

10   

Resistor

1

Load Housing

0

Содержание Econoload 8730 Series

Страница 1: ...D RESISTOR SERIES 8730 INCLUDING MODELS 8730A 8731 8732A AND 8738A Copyright 2005 by Bird Electronic Corporation Instruction Book P N 920 8730S Rev C Econoload and Termaline are Registered Trademarks...

Страница 2: ...This Page Intentionally Left Blank...

Страница 3: ...t Alone Under no circumstances should any personnel reach into an enclosure for the purpose of service or adjustment of equipment except in the presence of someone who is capable of rendering aid Safe...

Страница 4: ...ion manual are not followed The caution symbol appears on the equipment indicating there is important information in the instruction manual regarding that particular area This symbol indicates that th...

Страница 5: ...ION Different control systems are used for 115 Vac and 230 Vac Use the correct interlock control for your voltage CAUTION If installed connect optional interlock before applying RF power CAUTION Do no...

Страница 6: ...LISATION DE CET INSTRUMENT QUI N EST PAS EXPLICITEMENT PR VUE PAR LE FABRICANT PEUT ENDOMMAGER LE DISPOSITIF DE PROTECTION DE L INSTRUMENT IMPIEGO QUALORA QUESTO STRUMENTO VENISSE UTILIZZATO IN MODO D...

Страница 7: ...NZA TECNICA LE ISTRUZIONI RELATIVE ALL ASSISTENZA SONO PREVISTE ESCLUSIVAMENTE PER IL PERSONALE OPPORTUNAMENTE ADDESTRATO PER EVITARE PERICOLOSE SCOSSE ELETTRICHE NON EFFETTUARRE ALCUNA RIPARAZIONE A...

Страница 8: ...nance All personnel should be familiar with preventative maintenance found in Chapter 5 Maintenance If a failure should occur the troubleshooting section will aid in isolating and repairing the failur...

Страница 9: ...8732A Only 3 Calorimetry 4 Installation 5 Unpacking and Inspection 5 DC Resistance 5 Placement 5 Coolant 6 Hoses 6 Interlock Optional 7 Thermoswitch 8732A Only Optional 8 Connecting RF Power 9 Operati...

Страница 10: ...witch 15 Time Delay Switch 15 Safety Light 16 Resistor Servicing 17 Resistor Removal 18 Inspection 18 Resistor Replacement 18 Conductor Replacement 19 Preparation for Storage or Shipment 20 Customer S...

Страница 11: ...t Bird Electronic Corporation for information on using Econoloads with pulsed signals y Make precise calorimetric measurements by using an Econoload with a Bird 6085 Calorimeter y Designed for easy fi...

Страница 12: ...Bird 8730 Series Econoload RF Load Resistor 2 Figure 1 8730 Series Econoload Outline Drawing TERMALINE ECONOLOAD 2 5 64 mm 12 305 mm Depends On Connector Depends On Connector Water Output Water Input...

Страница 13: ...Coolant on page 6 and to Specifications on page 21 Optional Flow Interlock A minimum coolant flow of four galons per minute is required at all times to dissipate the heat from RF power When the flow r...

Страница 14: ...and the difference between the input and output coolant temperatures can be used to calculate the power dissipated in the load with the following formula where P Power in kilowatts k 0 263 for tempera...

Страница 15: ...ns of damage Immediately notify the shipping carrier and Bird Electronic Corporation of equipment damage or missing parts DC Resistance Before first using the load get a resistance baseline for future...

Страница 16: ...fittings For rigid piping replace the hose adapters with 1 2 male pipe fittings If the optional flow switch is installed it is attached to the water INPUT y The Econoload s water INPUT is located in t...

Страница 17: ...inal 2 WARNING Disconnect the unit from all power sources before servicing The unit may be energized from multiple sources The potential for electric shock exists WARNING Improper wiring could result...

Страница 18: ...rled ring nut A at the lower end of the coupling jack assembly Pull it off the thermoswitch jack B Unscrew the small knurled cover fitting from the base plug D of the connector to release the base 2 T...

Страница 19: ...onnect the coaxial input in a straight line and push carefully on the center conductor to close NOTE The swivel flange on the load makes connection independent of the orientation of the fixed flange o...

Страница 20: ...ctions below y Insert the center bullet and bottom it on the midpoint nibs y Position the outer sleeve with clamping bands over the input connector y Set the transmission line snugly against the coupl...

Страница 21: ...at 60 C 140 F 2 Wait for the coolant flow to stabilize 3 Apply RF power Shutdown 1 Turn off RF power at the source 2 Wait at least five minutes for the Econoload to cool 3 Turn off the water supply A...

Страница 22: ...or the flow switch to close it will click when it closes 4 Wait about 12 seconds The time delay switch should close and the red light on the control box should turn ON 5 Apply RF power Shutdown 1 Turn...

Страница 23: ...installed periodically remove it from the load and clean off any dirt or scale which might prevent the switch from functioning Problem Possible Cause Correction Transmitter won t turn on or shuts off...

Страница 24: ...and should be measured annually Perform the following steps and record the value for future comparison Make sure that you have an ohmmeter with an accuracy of 1 at 50 ohms and that the load temperatu...

Страница 25: ...he slotted screw 1 4 turn 3 Loosen the screw at the top of the relay clamp then press the clamp legs in slightly to release the relay 4 Pull the relay cartridge straight out of its socket 5 Insert the...

Страница 26: ...lock control box 1 Turn off the RF power and interlock circuitry and disconnect the RF line and ac line 2 Unscrew the lens cover at the top of the control box to expose the bulb 3 Gently push down on...

Страница 27: ...rvicing The unit may be energized from multiple sources The potential for electric shock exists Figure 7 Load Exploded View Water Chamber Screws 1 4 20 x 2 1 2 Socket Head Cap Screw 4 Water Chamber As...

Страница 28: ...has been successfully removed inspect it carefully to insure that it has not been fractured In most cases even in the event of complete resistor burnout the resistor will remain intact Examine the in...

Страница 29: ...uld be about 50 ohms Record this measurement as the new baseline reading 9 Connect the load to the coolant supply and cycle the coolant for five minutes Check for leaks Conductor Replacement 1 Remove...

Страница 30: ...o avoid shock damage Customer Service Any maintenance or service procedure beyond the scope of those in this chapter should be referred to a qualified service center If you need to return the unit for...

Страница 31: ...3 1 8 Unflanged Operating Position Any Coolant For operation at 1kHz or lower use only distilled water as the coolant For operation at greater than 1kHz use distilled or potable water Coolant Connecti...

Страница 32: ...hillips Head Screw 8 32 x 3 4 5 1118 1211 00 Socket Set Screw 10 32 x 1 4 Cone pt 1 1129 0400 25 Socket Set Screw 1 4 20 x 3 4 6 1121 1208 00 Center Conductor Assembly 8730A 8732A 8738A 1 8730A053 873...

Страница 33: ...ontrol Assembly 115 Vac 230 Vac 1 8750 101 1 8750 101 2 Interlock Control Assembly Components Relay Clamp 1 8630 193 Time Delay Relay 115 Vac 230 Vac 1 5 1664 5 1665 Indicator Light 115 Vac 230 Vac 1...

Страница 34: ...such claim for breach of these warranties shall be deemed to be waived by Buyer unless made in writing within ten 10 days from the date of discovery of the defect The above warranties shall not extend...

Страница 35: ...product to which this declaration relates is in conformity with the provisions of the following standards 1 European Standard EN 61010 1 1993 Safety Group II This standard is in accordance with Counc...

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