Ulvac GP-1G Instruction Manual Download Page 1

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No,SK00-7397-EI-003-06

PIRANI VACUUM GAUGE

MODEL GP-1G

MODEL GP-1G WITH CASE

(Pa/Torr)

INSTRUCTION MANUAL

This manual is for the following gauges.

Serial Nos. 02000G and higher

Read this manual before operation and keep it

at your hand for immediate reference.

Components Division,

ULVAC , Inc.

http://www.ulvac.co.jp/

Summary of Contents for GP-1G

Page 1: ...G MODEL GP 1G WITH CASE Pa Torr INSTRUCTION MANUAL This manual is for the following gauges Serial Nos 02000G and higher Read this manual before operation and keep it at your hand for immediate referen...

Page 2: ......

Page 3: ...fety symbols are used throughout this instruction manual to call the operator s attention to safety The terminology used in safety symbols is classified below Indicate status of urgency of danger when...

Page 4: ...nd potential Always connect the recorder input to the recorder terminal by insulating it from ground If it is connected to GND potential by mistake the meter will not indicate the correct value Also t...

Page 5: ...cloth don t wipe with benzene or thinner The pointer may become unstable due to static electricity In the case apply a commercially available antistatic agent to the cover Connection The contact outp...

Page 6: ...ed a method for attaching a probe to GP H Section 4 Added Troubleshooting Nov 7 2013 04 Corrected explanation of safety symbol mark Section1 2 Added Standard accessories Instruction manual CD Quick ma...

Page 7: ...4 2 GP 1G with case 5 2 INSTALLING THE PIRANI GAUGE 7 2 1 PRELIMINARY OPERATION 7 2 2 INSTALLATION 7 2 2 1 Installing the controller 7 2 2 2 Installing the sensor head 8 2 2 3 Electrical connection 8...

Page 8: ...mensions mm GP 1G 100W 130D 100H GP 1G with case 150W 134D 201H Weight GP 1G 670 g GP 1G with case 1365 g Measuring unit 35 g GP H 1 2 Standard Accessories Quick manual paper 1 pc 1 3 Options 1 3 1 Se...

Page 9: ...f sensor head that are indicated on the measuring unit 1 3 3 Sensor head cable Sensor head cable 2 5 10 15 20 30 50 100m Weight kg 0 2 0 4 0 7 1 0 1 3 1 9 3 9 7 7 1 3 4 Others Test results certificate...

Page 10: ...4 1 GP 1G GP 1G GP 1G Torr Fig 1 1 Front view of GP 1G Pa Torr Meter Pressure indicator Indicates pressure by a needle Zero adjustment Make adjustment so that the meter needle comes to the zero positi...

Page 11: ...erminal of this gauge Recorder output terminal Red terminal Black terminal Analog signal is outputted between the two terminals The recorder output is afloat from ground potential Always connect the r...

Page 12: ...ase Power switch Main power ON OFF switch The lamp lights when the switch is turned ON Meter Pressure indicator Indicates pressure by a needle Zero adjustment Make adjustment so that the meter needle...

Page 13: ...und terminal of this gauge Recorder output terminal Red terminal Black terminal Analog signal is outputted between the two terminals The recorder output is afloat from ground potential Always connect...

Page 14: ...uge If the air vents are plugged heat will be contained inside and the gauge may be damaged Also the gauge will not indicate the correct value Keep out foreign matter If foreign matter like metal frag...

Page 15: ...reful that the ambient temperature deviates considerably from the calibrating temperature about 25 C 2 Installing the sensor head Install the gauge in such a manner that the sensor head mounting openi...

Page 16: ...INSTALLING THE PIRANI GAUGE 9 GP H GP BH 01 10 034 04 CONVERSION CABLE WPB 10 2m CONVERSION CABLE WP 04 05 2m SENSOR HEAD CABLE Fig 2 1 GP 1G connection diagram...

Page 17: ...ttached to GP H to a sensor head By the kind of the sensor head installation methods are different For sensor head WP 01 02 For sensor head WP 03 16 It is inserted a screw for fixation by the vent sid...

Page 18: ...aracteristics may change In such a case fill the chamber with nitrogen inert gas or dry air with the sensor head energized with power and then evacuate it Repeat this purging operation The sensor head...

Page 19: ...o GND potential by mistake the meter will not indicate the correct value Also the vacuum gauge may be damaged Pa mV Torr mV 0 4 2 5 10 20 40 60 80 100 200 400 600 800 1000 2000 0 15 0 35 0 65 1 10 1 7...

Page 20: ...OPERATING PROCEDURE 13 Fig 3 1 Pressure vs recorder output curve...

Page 21: ...right atmospheric pressure side Possible cause Corrective action Pressure is beyond the measurable range 1 The measurable range of the GP 1G is 0 4 to 2700 Pa 0 003 to 20 Torr Sensor head cable is no...

Page 22: ...fied one 1 Change it with a specified one 2 Adjust or recalibrate with the one currently in use The sensor head is contaminated or its filament has worn out 1 Replace the sensor head Leak in the senso...

Page 23: ...equation A is a coefficient referred to as free molecule thermal conductivity m3 K 1 and its value varies with the type of gas is a coefficient that corrects the imperfectness of exchange of amount of...

Page 24: ...in inverse proportion to MT In a high pressure region the number of molecules that carry heat energy increases while the free path of molecule becomes short so that the amount of transport per molecu...

Page 25: ...5 3E 1 1 0 1 8 4 3 8 0 1 7E 1 5 1E 1 1 1E 2 2 3E 2 8 5E 2 8 0E 3 5 9E 1 1 2 2 3 5 3 1 1E 1 2 1E 1 5 2E 1 1 1E 2 2 1E 2 5 3E 2 1 0E 3 3 7E 1 8 2E 1 1 7 4 7 9 8 2 1E 1 4 0E 1 9 0E 1 2 4E 2 2 0E 3 7 4E...

Page 26: ...rror range by pressure values The pressure and recorder output of the GP 1G is in proportion to the controller meter scale graduations as shown by the recorder output characteristic table graph What i...

Page 27: ...7 14 600 510 715 20 14 26 1000 825 1250 40 32 49 2000 1650 2900 60 49 71 2700 1920 3750 Indicated Values Torr Working Standard Torr Indicated Values Torr Working Standard Torr 0 003 0 0 02 1 0 85 1 2...

Page 28: ...is a molecular density measuring vacuum gauge the indication of the gauge varies with the type of gas difference in thermal conductivity The Model GP 1G has been adjusted with nitrogen gas and its ind...

Page 29: ...the local ULVAC representatives for repair Return charge shall be paid by Buyer Disclaimer 1 Failure occurred after expiration of warranty period 2 Failure caused by force majeure such as fire storm a...

Page 30: ...CERTIFICATE OF DECONTAMINATION 23 7 CERTIFICATE OF DECONTAMINATION...

Page 31: ...aking format for names and contents of hazardous substances or elements Name of parts Hazardous substances or elements Pb Hg Cd Cr6 PBB PBDE Printed Circuit Board Chassis Connector AC DC Converter Lab...

Page 32: ...RELATED DRAWINGS 25 9 RELATED DRAWINGS Fig 7 1 Dimensional drawing for GP 1G...

Page 33: ...RELATED DRAWINGS 26 Fig 7 2 Dimensional drawing for GP 1G with case...

Page 34: ...RELATED DRAWINGS 27 Fig 7 3 Dimensional drawing for measuring unit GP H Fig 7 4 Dimensional drawing for measuring unit GP BH...

Page 35: ...RELATED DRAWINGS 28 Pin No Use 1 5 V 2 15 V 3 V 4 V 5 AG Cover FG Fig 7 5 Sensor head cable Fig 7 6 Sensor head filament connection diagram 2 5 10 15 20 30 50 100m...

Page 36: ...cable WP 01 18 Pt 25 BS Ni plating Socket type WP 02 15 18 Pt 25 BS Ni plating Socket type WP 03 3 8 Pt 25 BS Ni plating Socket type WP 16 NW 16 30 Pt 25 BS Ni plating Socket type WPB 10 034 UFC 034...

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