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Related Manuals for Agilent Technologies G6691A
Summary of Contents for Agilent Technologies G6691A
- Page 1 Agilent G6691A ADM Flow Meter Operating Instructions Agilent Technologies...
- Page 2 Notices © Agilent Technologies, Inc. 2016 Safety Notices No part of this manual may be reproduced in any form or C AU TI O N C AUTI O N by any means (including electronic storage and retrieval or translation into a foreign language) without prior A CAUTION notice denotes a hazard.
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Page 3: Table Of Contents
Storing Flow Measurements Reading and Setting a Split Ratio About Flow Measurements Info Mode USB Interface Warning and Error Indications Replacing the Cartridge Replacing Batteries Upgrading the Firmware/Retrieving Certificate of Calibration A Note About Back Pressure Technical Support Product Specifications Agilent Technologies... -
Page 4: Introduction
Introduction Congratulations on your purchase of the new Agilent ADM Flow Meter! The ADM Flow Meter has been designed to accurately measure the flow of gases commonly used in Gas Chromatography without knowledge of the gas type or mixture compo- sition. - Page 5 Included in the packaging are the following items: Table 1 Packing List ADM Flow Meter Mainframe ADM Flow Meter Cartridge USB Cable Screwdriver, Phillips head AA Alkaline Batteries Calibration Certificate Declaration of Conformance Quick Start Guide Agilent ADM Flow Meter Operating Instructions...
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Page 6: Principles Of Operation
Principles of Operation The ADM Flow Meter provides continuous, real time measurements of dry gas flows, such as those used for Gas Chromatography. Unlike bubble flow meters, the ADM Flow Meter operates without liquids, bubbles, or glass parts. When acti- vated, a solenoid actuated valve interrupts the gas flow momentarily. -
Page 7: Display
The ADM Flow Meter is powered by three AA alkaline batteries. Power can also be supplied via the micro USB port located on the side of the unit. Using the USB port to supply power does not recharge the NO TE installed batteries. -
Page 8: Using The Flow Meter Stand
Using the Flow Meter Stand The flip down wire stand will give you a better viewing angle when the ADM Flow Meter is placed above bench level. Pull the stand down until it is in the locked posi- tion. Stand Agilent ADM Flow Meter Operating Instructions... -
Page 9: Power/Mode Button
Power/Mode Button The Power/Mode button is used to switch the ADM Flow Meter on and off, as well as to scroll through and select the different operational modes. • To turn on the instrument briefly press and release the Power/Mode button. •... -
Page 10: Operating Modes
Operating Modes With the ADM Flow Meter switched on, briefly press the Power/Mode button to scroll through the different operational modes. The available modes are as follows: Volumetric flow mode This is the default mode on power up. In this mode, the volumetric flow rate is dis- played in mL/min. - Page 11 Info mode Info mode provides details on the flow meter and the currently installed cartridge, including the calibration expiration date. In addition, Info Mode allows you to set the display brightness and control the Auto off functionality. Agilent ADM Flow Meter Operating Instructions...
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Page 12: Making A Flow Measurement
Making a Flow Measurement Make sure that the flow to be measured is within the range of C A U TI ON the flow meter. Over ranging the flow meter can damage the transducer. Always turn the flow meter on before connecting it to a flow N O TE source. -
Page 13: Storing Flow Measurements
Storing Flow Measurements When in the volumetric flow mode or mass flow mode up to four flow values can be stored on the screen for reference later. To store one or more values: With either volumetric flow mode or mass flow mode displayed, briefly press the Select button. - Page 14 To clear the stored values: • Hold down the Select button. All of the stored values are cleared from memory. Agilent ADM Flow Meter Operating Instructions...
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Page 15: Reading And Setting A Split Ratio
Reading and Setting a Split Ratio In split mode, you can store a flow measurement as a reference value, and then compare subsequent flow measurement values as a ratio of the current measure- ment to the reference measurement. This is useful when verifying or troubleshoot- ing the operation of a Gas Chromatograph Inlet. -
Page 16: About Flow Measurements
About Flow Measurements When compared with readings from the ADM Flow Meter, measurements taken with bubble-type flow meters may show a difference. This does not indicate a prob- lem with your ADM Flow Meter. As a consequence of the ideal gas law, measure- ments made with both soap bubble meters and the ADM Flow Meter are temperature sensitive. -
Page 17: Info Mode
Info Mode Info mode provides details on the flow meter and the installed cartridge. In addi- tion, Info Mode allows you to set the display brightness and control the Auto off functionality. To access Info mode: • With the unit switched on, repeatedly press the Power/Mode button until Info mode is displayed. - Page 18 The third screen displays the flow meter model number (MDL), serial number (SN) and firmware version number (Ver). (See “Upgrading the Firmware/Retrieving Certificate of Calibration" on page 30 for details on upgrading the flow meter firmware.) Display brightness Display brightness can be set to high or low. To change the display brightness setting: With Info mode displayed, press the Select button to cycle through the available screens until the Brightness screen is displayed.
- Page 19 Press the Select button to cycle through the available screens until you are returned to the Info mode screen with the cartridge statistics displayed. Errors/Warnings With Info mode displayed, press the Select button to cycle through the available screens until the Error/Warning screen is displayed. Error number definitions are as follows: Error number Type...
- Page 20 Error number Type Description Troubleshooting 0007 Warning Measurement exceeds Measure gas flows within instrument range. the acceptable flow range. 0008 Warning Cartridge calibration Install a new cartridge. expired. 0009 Warning RTC (real time clock) Contact Agilent Technical backup battery low. Support.
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Page 21: Usb Interface
USB Interface Power can be supplied via the micro USB port located on the side of the unit. Using the USB port to supply power does not recharge the NO TE installed batteries. USB port The ADM Flow Meter can communicate with a connected PC via the USB port. Data from your flow meter can be collected by connecting the USB port to your computer with the included USB cable. - Page 22 When using the data acquisition capability of the ADM Flow N O TE Meter, you should disable the auto-off feature. See “Auto off" page 18. When the ADM Flow Meter is being powered via the USB port, the battery icon on the screen is replaced by a USB connector icon.
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Page 23: Warning And Error Indications
Warning and Error Indications Various warning and error indications are displayed on the screen as appropriate. Each is described below. Warning indication A warning icon appears on the screen when the flow meter is being operated out- side of acceptable conditions, when the calibration is expired, when the RTC bat- on page 19. -
Page 24: Replacing The Cartridge
Replacing the Cartridge To order a replacement cartridge, order P/N G6692A. The replacement cartridge includes replacement tubing. Press and hold the Power/Mode button for 3 seconds. Figure 1 Power off Loosen two captive screws completely. Lift cartridge out of flow meter body. - Page 25 Insert cartridge into flow meter body. Tighten two cap- tive screws hand tight. Figure 3 Install replacement cartridge Tubing Figure 4 Install new flexible tubing Agilent ADM Flow Meter Operating Instructions...
- Page 26 Briefly press the Power/Mode button. Figure 5 Power on Agilent ADM Flow Meter Operating Instructions...
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Page 27: Replacing Batteries
Replacing Batteries To replace the batteries, do the following: Press and hold the Power/Mode button for 3 seconds. Figure 6 Power off Press in on the grooved thumb pad and slide the battery cover off of the flow meter. Figure 7 Remove battery cover Agilent ADM Flow Meter Operating Instructions... - Page 28 Remove and replace AA batteries. Figure 8 Replace batteries Position battery cover over batteries and slide onto flow meter until it locks in place. Figure 9 Install battery cover Agilent ADM Flow Meter Operating Instructions...
- Page 29 Briefly press the Power/Mode button. Figure 10 Power on Agilent ADM Flow Meter Operating Instructions...
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Page 30: Upgrading The Firmware/Retrieving Certificate Of Calibration
Upgrading the Firmware/Retrieving Certificate of Calibration When a newer version of the flow meter firmware is available, you can upgrade to the latest version using your PC via the USB connection of the ADM Flow Meter. Please visit http://www.agilent.com/chem/ADMflowmeter for instructions. It is also possible to retrieve a digital copy of your cartridge's Certificate of Calibra- tion in PDF form though the Flow Meter's website. -
Page 31: Product Specifications
Product Specifications Table 2 ADM Flow Meter specifications Flow range 0 to 750 mL/min, auto-ranging Accuracy 0 - 500 mL/min: ± 2% of reading, or ± 0.2 mL/min, whichever is greater. 501 - 750 mL/min: ± 3% of reading. Tubing temperature range: -62 °C to 110 °C Operating temperature range 0 °C to 45 °C... - Page 32 Conforms to the following regulations on Electromagnetic Compatibility (EMC) and Radio Frequency Interference (RFI): • CISPR 11/EN 55011: Group 1 Class A • IEC/EN 61326 Designed and manufactured under a quality system registered to ISO 9001. © Agilent Technologies, Inc. Printed in USA, October 2016 *G6691-90000* G6691-90000...