Ulvac GP-2001G Instruction Manual
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Ulvac GP-2001G Instruction Manual

Pirani vacuum gauge
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MODEL GP-2001G, GP-2002G
PIRANI VACUUM GAUGE
INSTRUCTION MANUAL
This manual is applicable to the following gauges:
Model
GP-2001G
GP-2002G
Read this manual before operation and keep it
at your hand for immediate reference.
Components Division,
ULVAC, Inc.
2500 Hagisono, Chigasaki City, Kanagawa-ken, Japan
http://www.ulvac.co.jp/
Serial No.
0001G and higher
0001G and higher
No.SK00-7105-EI-003-03

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Summary of Contents for Ulvac GP-2001G

  • Page 1 No.SK00-7105-EI-003-03 MODEL GP-2001G, GP-2002G PIRANI VACUUM GAUGE INSTRUCTION MANUAL This manual is applicable to the following gauges: Model Serial No. GP-2001G 0001G and higher GP-2002G 0001G and higher Read this manual before operation and keep it at your hand for immediate reference.

  • Page 3: Safety Symbols

    The copyright of this instruction manual is held by ULVAC, Inc. You are prohibited from copying any portion of this instruction manual without the consent of ULVAC Inc.

  • Page 4: Safety Cautions

    OFF the power. Otherwise, fire can result. For safety, contact your local ULVAC representative or ULVAC JAPAN. Turn OFF power. Before touching any terminal on the control rear panel or if there is a possibility of touching it, turn OFF the vacuum gauge power.
  • Page 5 To prevent damage to the device, we recommend maintenance at ULVAC about once every three years. Lifetime of the parts (Connector-area) In the connector-area such as a sensor head cable or GP-H, there is a life time.

  • Page 6: Revision History

    Revision History DATE Reason Mar. 23, 2007 S/N:00001～ first version Oct. 31, 2013 ・Changed description of safety symbol. ・Section 1.1, Changed accuracy description. ・Section 1.1 and 1.2, Changes to accessories and options. ・Section 1.2, WP-04 and WP-05 were discontinued. ・Section 2.2.5, Added sensor head installation method to GP-H. ・Section 4.1, Changed the overall operation diagram.

  • Page 7: Table Of Contents

    1.3....................................2 PTION 1.3.1. Sensor head ................................2 1.3.2. Measuring unit ................................. 2 1.3.3. Sensor head cable ..............................2 1.3.4. Supply cable 3m（only GP-2001G） ........................2 1.3.5. Others ..................................2 1.4............................ 3 ESCRIPTION OF OMPONENTS 1.4.1. Front panel ................................3 1.4.2.

  • Page 8: General Description

    Pressure comparison values can be set at three places. The comparator output is delivered as transistor output (open collector). Power voltage of Pirani Vacuum Gauge Model: GP-2001G and GP-2002G are specified below. GP-2001G：AC 85～264 V 50/60 Hz GP-2002G：DC 24 V...

  • Page 9: Ption

    1.3.3. Sensor head cable Sensor head cable 2、5、10、15、20、30、50、100m 0.2/0.4/0.7/1.0/1.3/1.9/3.9/7.7 Weight(kg) 1.3.4. Supply cable 3m（only GP-2001G） ※The plug specification of supply cable is AC125V / 7A. 1.3.5. Others JCSS calibration certificate Only combination with sensor unit General proofreading test Only combination with sensor unit...

  • Page 10: Description Of Components

    Description of Components 1.4.1. Front panel 5. DISPLAY OF UNIT OF PRESSURE 2.SETPOINT OUTPUT ACTION DISPLAY 1. OPERATING SWITCH ZERO DATA GP-200□ 3. PV INDICATOR 4. SV INDICATOR Fig. 1-1 Front Panel of GP-200□G (1) Operation switch Used to display and change the comparison set value (setpoint) ZERO Used to set and cancel the zero point correction function DATA...

  • Page 11: Rear Panel

    (3) Fuse The fuse protects the power supply. Normally, it does not blow out. If it blows out, contact your local ULVAC service center or representative for repair without taking any action.

  • Page 12: Installing The Pirani Vacuum Gauge

    2. INSTALLING THE PIRANI VACUUM GAUGE Turn OFF power Whenever mounting the vacuum gauge, unplug the power cable. Preliminary Operation • Unpack the vacuum gauge and check quantities. • Check components for possible damage. Installation 2.2.1. Installing the controller Ventilation Do not plug the air vents of the vacuum gauge controller.

  • Page 13: Installing The Sensor Head

    2) How to mount Remove the metal fitting from the controller. Fit the controller into the front panel. Attach the metal fittings in the original position from the back of the panel. Fig. 2-2 GP-200 □G mounted in panel 2.2.2. Installing the sensor head Operating environment Do not connect the sensor head to a test object of which pressure is in excess...

  • Page 14: Installing The Supply Cable

    Installing the sensor head • Install the vacuum gauge in such a manner that the sensor head mounting opening plane is parallel with gas flow. See to it that gas does not enter the sensor head in the form of beam. •...
  • Page 15 GP-200□G SENSEOR　HEAD CABLE　 （GP-H/BH） CONVERSION CABLE (WBP-10) Fig. 2-3 GP-200□G overall connection diagram...

  • Page 16: A Sensor Head Installation Method To Gp-H

    2.2.5. A sensor head installation method to GP-H Screw for fixation The installation methods of a screw for fixation are different by a sensor head. ①Install a screw for fixation that is atta ched to GP-H to a sensor head. By the kind of the sensor head, installation met hods are different It is inserted a screw for...

  • Page 17: Operating Procedure

    3. OPERATING PROCEDURE Cautions in Handling (1) When power is applied to this gauge, it starts measurement after a delay of approx. three seconds. However, temperature drift or other problem due to power application is likely. So wait for more than one minute after applying power to the sensor head until the indication is stabilized.

  • Page 18: Operating Procedure

    4. OPERATING PROCEDURE Summary of the operation method NORMAL DISPLAY ▲ ＋ Pressing 1 second later Selecting the recorder output SV indicator “0” (Lin0) SV indicator “1” (Lin1) ▲ ＋ Pressing SV indicator “2” (Lin2) Pressing Change setpoint comparison value SV indicator “SP1”／PV indicator “setpoint value”...

  • Page 19: Selecting The Recorder Output

    Selecting the Recorder Output The recorder (analog) output signals of this gauge include Lin1 and Lin2, which can be selected. Lin0 0 to 3000 Pa : 0 to 10 V Lin1 0 to 1000 Pa : 0 to 10 V Lin2 0 to 100 Pa : 0 to 10 V (1) Pressing the [▲] and [SET] switches simultaneously displays “0”, “1”...

  • Page 20: Adjusting The Recorder Output

    Adjusting the Recorder Output Adjustment has been completed before shipment from factory. If the correlation between the displayed value and the output value cannot be obtained, make adjustment by using the following procedure. NORMAL DISPLAY ＋ SET ＸＸＸＸ OUTPUT ZERO ADJUSTMENT FINALIZE CANCEL DATA...

  • Page 21: Recorder Output

    Recorder output The recorder outputs of this gauge include Lin1 and Lin2, which can be selected. Both outputs are correlated with pressure in linear function. Lin 0 0 to 3000 Pa : 0 to 10 V Lin 1 0 to 1000 Pa : 0 to 10 V Lin 2 0 to 100 Pa : 0 to 10 V The maximum value of the recorder output is approx.
  • Page 22 1000 1200 1400 1600 Pressure (Pa) Fig. 4-2 Lin1 Output Pressure (Pa) Fig. 4-3 Lin2 Output...

  • Page 23: Setpoint Output

    Setpoint Output The setpoint output turns ON (continuity) the transistor output (open collector) if the measured value is smaller than the set comparison value and the status is maintained continuously for more than 0.5 second. When the setpoint output is turned ON, the LED (green) that displays the comparison output action on the front panel also light up.

  • Page 24: Appendix

    The value α directly affects the accuracy and stability of the vacuum gauge. The constant temperature type Pirani gauge supplies the energy lost by collision of gas molecules from the heated filament and maintains the filament temperature constant all the time. The ULVAC Pirani gauge is this type of gauge.

  • Page 25: Ypes Of As Easured And Ndication

    Types of Gas Measured and Indication As briefly explained in "7.1 Principles of Operation", the indication of the Pirani vacuum gauge changes with the type of gas measured. In the molecular flow region, A (free molecule thermal conductivity) is given by the following equation.
  • Page 26 Ｈ ２ Ｈ ｅ Ｎ ２ Ｏ ２ Ａ ｒ Ｃ Ｏ ２ Indication of Pirani gauge (Pa) Indication of Absolute pressure of Gas (Pa) Pirani gauge (Pa) 3.1E-1 9.7E-1 5.3E-1 5.3E-1 5.9E-1 3.7E-1 7.4E-1 2.0E-1 4.3E-1 7.8E-1 8.2E-1 6.0E-1 8.2E-1 1.5E+1 1.3E+1...

  • Page 27: Hange Of Ndication With Mbient Emperature

    Change of Indication with Ambient Temperature Ｐ ＝ ２ ０ ０ ０ Ｐ ａ Ｐ ＝ １ ０ ０ ０ Ｐ ａ Ｐ ＝ ５ ０ ０ Ｐ ａ Ｐ ＝ ２ ０ ０ Ｐ ａ Ｐ ＝ １ ０ ０ Ｐ ａ Ｐ...

  • Page 28: Troubleshooting

    If the cause is unknown (for example, the power line was struck by lightening), do not replace it by yourself, but contact your local ULVAC representative for replacement. • The power cord is disconnected. 1) Check the power cord for connection.
  • Page 29 Symptom: The PV display does not “-----” when atmospheric pressure is being measured. Possible cause Corrective action • The type of sensor head differs from the 1) Change the sensor head with the specified type. specified one. Or re-adjust and re-calibrate the one in use. •...

  • Page 30: Warranty

    1) In case, special agreement or memorandum for specifications is made individually, the descriptions are prior to this article “13 Product Warranty”. 2) Buyer shall inform ULVAC when this product is exported out of Japan. In the meantime, Buyer shall take necessary procedures according to Foreign Exchange and Foreign Trade Law.

  • Page 31: China Rohs Declaration

    8. CHINA ROHS DECLARATION This mark is applied to the electronic information product sold in the People's Republic of China. The figure at the center of the mark is the validity date of environmental protection. This product does not influence the environment, the human body and the property during the period reckoning the manufacturing date as long as the caution for safe use regarding the products are observed.

  • Page 32: Certificate Of Decontamination

    CERTIFICATE OF DECONTAMINATION...

  • Page 33: Related Drawings

    10. RELATED DRAWINGS 91.5 Panel hole Demention ZERO DATA GP-2000G 12.5 123.5 Fig. 10-1 Dimensional drawing for GP-200□G...
  • Page 34 Fig. 10-2 Dimensional drawing for measuring unit GP-H Fig. 10-3 Dimensional drawing for measuring unit GP-BH...
  • Page 35 ＷＰＢ－１０－＊＊＊ ＷＰ－０１，０２，０３，１６ Fig. 10-4 Sensor head filament connection diagram (2,5,10,15,20,30,50,100m) Pin No. +5 V +15 V V– Cover Fig. 10-5 Sensor head cable...
  • Page 36 WP-01 WP-02 WP-03 WP-16 WPB-10-034 Mounting port size Sensor head model Filament material Case material (dia.) φ 18 WP-01 BS (Ni plating) Pt (φ 25µ) φ 15 (18) WP-02 BS (Ni plating) Pt (φ 25µ) φ 3/8 WP-03 BS (Ni plating) Pt (φ...

This manual is also suitable for:

Gp-2002g

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