M A I N T E N A N C E a n d I N S TA L L AT I O N M A N U A L CHC-15 Crystal Holder GC-15 Glass Cell IPN 623800 Rev.
M A I N T E N A N C E a n d I N S TA L L AT I O N M A N U A L CHC-15 Crystal Holder GC-15 Glass Cell IPN 623800 Rev. D ® www.inficon.com reachus@inficon.com Due to our continuing program of product improvements, specifications are subject to change without notice.
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Warranty INFICON warrants the product to be free of functional defects in material and workmanship and that it will perform in accordance with its published specification for a period of (twelve) 12 months. The foregoing warranty is subject to the condition that the product be properly operated in accordance with instructions provided by INFICON or has not been subjected to improper installation or abuse, misuse, negligence, accident, corrosion, or damage during shipment.
TABLE OF CONTENTS 1 SPECIFICATIONS........................................................................................................1 1.1.1 CH-15 CRYSTAL HOLDER ......................................................1 1.1.2 GC-15 GLASS CELL ..................................................................1 1.2 ORDERING INFORMATION ...........................................................................1 2 CRYSTAL HOLDER DESCRIPTION ................................................................
1 1.1.1 SPECIFICATIONS CH-15 CRYSTAL HOLDER Material: O-Ring: Temperature Range: Connector: 1.1.2 CPVC Viton® Size: 2-019 -25°C to 95°C SMB GC-15 GLASS CELL Material: O-Ring: Approx. Volume of Water: Temperature Range: Pyrex Glass Viton® Size: 2-116 45 mL 20°C to 300°C 1.
CHC-15 CRYSTAL HOLDER & GC-15 GLASS CELL 2 CRYSTAL HOLDER DESCRIPTION The CHC-15 Crystal Holder is designed to mate with a ChemGlass O-ring Joint P/N CG-124-04 or equivalent. This allows the user to create his own experimental cell around the O-ring Joint. Figure 1 shows a INFICON CHC-15 Crystal Holder. It has a cavity for a 1-inch diameter crystal. Inside the cavity there are two Pogo® pins providing connections to the crystal’s front and rear electrodes. Note the locations of the Pogo® pins.
CHC-15 CRYSTAL HOLDER & GC-15 GLASS CELL Assembly Illustration Shown with GC-15 Glass Cell Picture 1 Picture 2 Picture 3 Picture 4 Page 3
CHC-15 CRYSTAL HOLDER & GC-15 GLASS CELL STOPPER (P/N 803339) CHC-15 CRYSTAL HOLDER (CPVC) (P/N 623201) GC-15 GLASS CELL (P/N 623203) CRYSTAL GLASS CELL O-RING (P/N 803252) Figure 2 CHC-15 & GC Installation & Part Identification Page 4
CHC-15 CRYSTAL HOLDER & GC-15 GLASS CELL Figure 3 CHC-15 Parts Identifications Figure 4 Crystal Installation Page 5
CHC-15 CRYSTAL HOLDER & GC-15 GLASS CELL 2.1.2 HOLDER CARE AND HANDLING With a robust design, INFICON crystal holder requires little care. However, the crystal holder is in direct contact with the sensor crystal and your experiment environment. Thus, care must be taken to ensure its cleanliness eliminating any contaminants that may react with the crystal or the experiment media. The following guidelines are recommended for general handling of the holders.
CHC-15 CRYSTAL HOLDER & GC-15 GLASS CELL 2.2 1 INCH DIAMETER CRYSTALS INFICON pioneered the standard AT-cut, 5 MHz, 1-inch diameter crystals for use in liquid applications. The AT-cut quartz is chosen for its superior mechanical and piezoelectric properties, and the angle of cut can be adjusted to obtain a zero temperature coefficient at a desired operating temperature. The 1 inch diameter was chosen to allow enough distance between the active area of the crystal and the mounting oring.
CHC-15 CRYSTAL HOLDER & GC-15 GLASS CELL The figure below shows a INFICON 1” diameter as seen from the front side. Figure 6. 2.2.2 1" Crystal - as Seen From The Front Side CRYSTAL PARAMETERS Polished one-inch diameter crystals that are commonly available for liquid work have the typical values as listed below. Type 5 MHz 9 MHz 2.2.3 Frequency Range (MHz) 4.976 – 5.020 8.976 – 9.
CHC-15 CRYSTAL HOLDER & GC-15 GLASS CELL 2.2.5 CRYSTAL THICKNESS INFICON AT cut, 1-inch diameter crystals are plano-plano. Their physical thickness is determined by a frequency constant and their final frequency. The frequency constant for an AT cut crystal is 1.668E5 Hz × cm or 65.5 kHz × in. Therefore, the crystal thicknesses for various frequencies are as follows. 5 MHz AT cut thickness = 333 microns (0.013 inch) 6 MHz AT cut thickness = 227 microns (0.
