User guide

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Valco Instruments Co. Inc.

HP2w.p65

Rev. 1/11

Printed in USA

Helium Purifier and

Nitrogen Purifier

Instruction Manual

For item numbers:

HP2

HP2-220

NP2

NP2-220

I-23572HP2

I-23572NP2

Valco Instruments Co. Inc.

800

367

8424 sales

713

688

9345 tech

713

688

8106 fax

valco@vici.com

VICI International

Schenkon, Switzerland

Int + 41

925

6200 phone

Int + 41

925

6201 fax

info@vici.ch

Introduction

Specifications ................................................................................................ 1

Theory of Operation ...................................................................................... 2

Power Supply Requirements ......................................................................... 2

Installation and Operation

Installation ..................................................................................................... 3

Activation ....................................................................................................... 3

Operation....................................................................................................... 3

Removing the HP2 or NP2 from the System ................................................. 4

Routine Maintenance

Replacing the Getter Cartridge ....................................................................... 5

Disposing of Spent Getter Cartridges ............................................................. 5

Technical Drawings ............................................................................................... 6

Warranty .............................................................................................................10

Summary of content (11 pages)

PAGE 1
Valco Instruments Co. Inc. Helium Purifier and Nitrogen Purifier Instruction Manual For item numbers: HP2 HP2-220 NP2 NP2-220 I-23572HP2 I-23572NP2 Introduction Specifications ................................................................................................ 1 Theory of Operation ...................................................................................... 2 Power Supply Requirements .........................................................................
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1 Introduction The Valco Helium Purifier (HP2) and Nitrogen Purifier (NP2) provide “pointof-use” carrier gas purification to sub-ppm levels of gaseous impurities. Designed originally for the Valco Trace Gas Analysis system with its Helium Ionization Detectors, the Helium Purifier provides point-of-use ultrahighpurity helium for use in any chromatographic application requiring highquality helium or other noble gas (Ar, Ne, Kr, Xe).
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Introduction 2 Theory of Operation The purification substrate in the Valco purifiers is a non-evaporable gettering alloy, with a nominal composition of zirconium, vanadium, and iron. This alloy must be heated so that the oxide layers on the particle surface are eliminated. This process must be performed under a vacuum or in at atmosphere of helium (for the HP2) or nitrogen (for the NP2).
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3 Installation and Operation This procedure describes a chromatographic installation. Although that is not the only possible application, it is the most common. It is up to the user to determine whether the purifier is suitable for a particular application based upon the specifications of the purifier. Installation The Valco HP2 and NP2 are two part systems comprised of the purifier and the power supply. The purifier must be installed in a vertical position to eliminate the possibility of channeling.
PAGE 5
Installation and Operation 4 Operation In normal operation the outside temperature of the purifier is warm, but should not be uncomfortable to the touch. The 24 VDC power supply maintains the purifier trap at a constant temperature, and should be located so that the illuminated LED can serve as a visual indicator of purifier operation. Removing the HP2 or NP2 from the System To remove the purifier from the carrier gas line: 1. Disconnect the power supply.
PAGE 6
5 Routine Maintenance Do not open or modify the trap assembly. In normal usage there is no maintenance required on the purifier or power supply. If the purifier shows signs of saturation it will need replacement. Replacement cartridges can be ordered from Valco using the product numbers below. For an HP2: I-23572HP2 For an NP2: I-23572NP2 Replacing the Getter Cartridge 1. Disconnect the power supply from the purifier, but leave the helium flow on. 2. Allow at least two hours for the purifier to cool.
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6 Technical Drawings Enclosure Assembly ................................................ Drawing 23575 Page 7 Secondary Assembly .............................................. Drawing 23579 Page 8 Final Assembly HP2/NP2 ........................................
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3 7 1 6 4B 4A 2 * * REVISIONS DESCRIPTION I-21208-48 HWJAX-10 HEATER: CARTRIDGE 42W, 24V 6" X 3/8 JACK: POWER, PANEL SLOT MT, .1 ID PIN 14 15 13 14 1.5" X 4.0" 12 11 23579 NEXT ASSY. THREAD GAP 10 AND SO THERE ARE ABOUT 2 THREADS SHOWING ~ .050 FILE NAME 23575 CHECKED S.WERNER DESIGNED S.WERNER DRAWN APPROVED HP2 SUB-DIR 17DEC97 DATE TOLERANCES UNLESS 63 OTHERWISE SPECIFIED FRACTIONS DEC. ANGLES .X.1 1/64" 1 .XX.01 .XXX.005 Valco Instruments Co., Inc.
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6 NITROGEN MODELS USE I-23572-02 * 5 1 * 3 REVISIONS DESCRIPTION DATE 4 2 VALCO # I-23575 I-23542 HWSC-PL6-6 HW-1658 HW-7603 I-23572HP2 I-TAG73T1-795 17DEC97 5JUN00 INITIATED QTY. 1 1 4 4 2 1 1 S.WERNER JDURR FILE NAME I-23580 23579 NEXT ASSY. S.WERNER DESIGNED S.WERNER DRAWN APPROVED HP2 SUB-DIR 17DEC97 DATE TOLERANCES UNLESS 63 OTHERWISE SPECIFIED FRACTIONS DEC. ANGLES .X.1 1/64" 1 .XX.01 .XXX.005 C SIZE USA PROJECTION SCALE OF I-23579 SHEET 23579 DRAWING NO.
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* * PARTS LIST DESCRIPTION POWER SUPPLY , 24VDC OVEN ASSY, GETTER LINE CORD, IEC 320 TYPE MANUAL, HP2 FOR 220 VAC MODELS USE I-17850 ITEM 1 2 3 4 VALCO # PS24VDC-CE I-23579 I-W-17600 I-MNL-HP2 QTY 1 1 1 1 2 SERIAL NO. HP-XXXXX HP2 VALCO INSTRUMENTS CO INC. MADE IN U.S.A BY MODEL NO. FINAL ASSY 4 REVISIONS DESCRIPTION ECN #4015 NEW DWG.GETTER REDESIGN (HP2) ECN #5161 SHOW SERIAL TAG DATE INITIATED S.WERNER JDURR 23580 FILE NAME CHECKED S.WERNER DESIGNED S.
PAGE 11
10 Warranty This Limited Warranty gives the Buyer specific legal rights, and a Buyer may also have other rights that vary from state to state. For a period of 365 calendar days from the date of shipment, Valco Instruments Company, Inc. (hereinafter Seller) warrants the goods to be free from defect in material and workmanship to the original purchaser.