Related Manuals for Ametek 120HD
Summary of Contents for Ametek 120HD
- Page 1 Model 120HD Portable Hydrogen Analyzer User Manual Process Instruments 150 Freeport Road Pittsburgh, PA 15238 90629VE Rev. C...
- Page 2 © 2006 AMETEK This manual is a guide for the use of the Model 120HD Portable Hydrogen Analyzer. Data herein has been verified and validated and is believed ad- equate for the intended use of this instrument. If the instrument or procedures are used for purposes over and above the capabilities specified herein, confirmation of their validity and suitability should be obtained;...
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Page 3: Table Of Contents
Table of Contents Chapter 1 Model 120HD Hydrogen Analyzer General Description ...................1-1 Function ......................1-1 Inspect Shipping Contents ................1-2 Technical Support ....................1-3 Installation ......................1-4 Mechanical Installation ................1-4 Initial Attachment of Swagelok Sample Line Fittings ......1-4 Re-tightening Sample Line Connections ..........1-4 Repositioning the Gas Inlet/Outlet Connections ........1-5 Checking for Leaks ..................1-5... - Page 4 Check the sample line and all connections for leaks before powering up. Consult plant safety personnel for appropriate exhaust venting guidelines for specific sample gas type. iv | Model 120HD Hydrogen Analyzer...
- Page 5 Achtung - Heiße Oberfläche Environmental Information (WEEE) This AMETEK product contains materials that can be reclaimed and recycled. In some cases the product may contain materials known to be hazardous to the environment or human health. In order to prevent the release of harmful sub- stances into the environment and to conserve our natural resources, AMETEK recommends that you arrange to recycle this product when it reaches its “end of...
- Page 6 Process photometric analyzers, process moisture analyzers, and sampling systems are warranted to perform the intended measurement, only in the event that the customer has supplied, and AMETEK has accepted, valid sample stream composition data, process conditions, and electrical area classification prior to order acknowledgment.
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Page 7: Model 120Hd Hydrogen Analyzer
MODEL 120HD HyDrOGEN ANALyzEr General Description Function The Model 120HD portable hydrogen unit analyzes a gas sample, mea- sures the hydrogen concentration and then digitally reports the percent volume of hydrogen in air. Principle of Operation The 120HD analyzer functions using the same prin- ciple as a katharometer. -
Page 8: Inspect Shipping Contents
Keep the original packaging materials for use in reshipping the unit should it be necessary. Model 120HD Hydrogen Analyzer Parts The following parts are shipped with the Model 120HD analyzer: (1) 120HD Analyzer * 00135086 (1) Battery Harness ** Battery (Energizer 521) not included with analyzer. -
Page 9: Technical Support
Technical Support AMETEK is committed to providing you the best technical support in the industry. If you need service or application assistance, please call AMETEK at (412) 828-9040. If you need to return equipment, you will be asked to provide the follow- ing information before obtaining a Return Material Authorization (RMA) number. -
Page 10: Installation
1. Insert the pre-swaged ferrule into the fitting until the front ferrule seats in the fitting. 2. Tighten snug by hand or lightly seat the nut using a wrench. Using a wrench, tighten an additional 1/4 turn. 1-4 | Model 120HD Hydrogen Analyzer... -
Page 11: Repositioning The Gas Inlet/Outlet Connections
repositioning the Gas Inlet/Outlet Connections You can change the orientation of both the sample gas inlet and outlet from horizontal. 1. Locate the Swagelok fitting near the IN /OUT labels on the right-hand side of the unit. 2. Loosen the Swagelok fitting and rotate it to the new position. -
Page 12: Electrical Installation
Electrical Installation Installing the Battery The Model 120HD operates on power supplied by (1) 6V No. 521 Energizer Industrial Alkaline Lantern Battery. Follow the instruc- tions below to install the battery. Turn Knob 1 to the OFF position. Loosen the two thumbscrews on the front left-hand panel so that you can open the door to the battery compartment. - Page 13 replacing the Battery 1. Turn Knob 1 to the OFF position. 2. Loosen the two thumbscrews on the front left-hand panel so that you can open the door to the battery compartment. Slide the door off its hinges by lifting upward for easier access to the battery compartment. 3.
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Page 14: Electrical Circuit
Electrical Circuit The Model 120HD analyzer’s electronic circuits include five power supplies, a linearization circuit, a digital display, and the hydrogen sensor. Power Supplies The circuit requires five power supplies: +5V, -5V, +1.25 and -1.25 V, and a 120 mA constant current source. -
Page 15: Chapter 2 Specifications
SPECIFICATIONS Operating range: 0 to 25% hydrogen in water-saturated air. Accuracy: ±4% full scale (± 1% H response Time: < 1 minute for 90% step change. repeatability: ± 2% full scale (±0.5% H Environment: Ambient Temperature: 50 to 100°F relative Humidity: 0% to 100%, relative Sample Gas Flow rate: 50 ml/min... -
Page 16: Power Supply
120 hours minimum with backlight. (Analyzer can be used until unable to set to 120.0.) Power Drain: 210 mA, 6V (with backlight) 170 mA, 6V (without backlight) Weight: Less than 15 lb with battery. 2-2 | Model 120HD Hydrogen Analyzer... -
Page 17: Chapter 3 Operation
OPErATION Initial Start-Up The 120HD analyzer has a backlit digital display. When Knob 1 is turned to the SET position or to the second TEST position there is an icon of a light bulb that indicates that the display screen will be backlit when NOTE using these functions. -
Page 18: Electrical Zero Adjustment
5. The digital readout should settle at 0.0 within five minutes. If it does Front display with not, adjust the Electrical Zero Adjust Screw #4 (Figure 3-1) until the adjustment knobs. reading is 00.0. The 120HD is now ready to analyze a gas sample. 3-2 | Model 120HD Hydrogen Analyzer... -
Page 19: Analyzing A Gas Sample
Analyzing a Gas Sample Hydrogen gas is flammable, and in a mixture with air concentrations above 4% - 5%, it is explosive. Vent the gas from the outlet to a safe area - outdoors, if possible. Always make sure the workplace is well- ventilated. -
Page 20: Recalibration
(12” x 18” long) to the outlet gas Swagelok tube fitting as a NOTE precaution against ambient air diffusing back into the analyzer. When the analyzer is not in use, be sure to turn Knob 1 to the OFF position, otherwise the battery will be decreased. 3-4 | Model 120HD Hydrogen Analyzer... - Page 21 20% hydrogen in air is explosive. Vent the gas from the outlet outdoors, if possible. Always make sure that the workplace is well-ventilated. Displays % H2 (No Backlight) Displays Sensor Current (Backlight) Displays % H2 (Backlight) Electrical Zero Adjustment Screw CURRENT ADJUST Current Adjustment Knob...
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Page 22: Maintenance
Maintenance Battery The 120HD analyzer uses (1) 6V No. 521 Energizer Industrial Alkaline Lantern Battery. When the low battery warning indicator lights up and the battery runs down to the extent that it is impossible to adjust the digital display to 120.0 ±0.1, replace the battery following the procedure described in Chapter 1.