INFICON CrystalTwo Switch - Manual

INSTRUCTION SHEET
CrystalTwo Switch
IPN 074-380-P1C
1 of 4
Function
The INFICON ® CrystalTwo Switch will allow a single Crystal Interface Unit (XIU) to
sequentially communicate to one of two crystal transducers. It may be used with any two
single type sensors or with a single dual sensor. The internal switching mechanism is
designed to minimize any loss of electrical signal through the device to very low levels
and will generally not have any effect on the measurement system’s performance or
crystal (Xtal) life.
Specifications
Part Number
779-220-G1 . . . . . . . . . . . . . . .CrystalTwo Switch with two 6” (152.4 mm)
BNC cables
779-220-G2 . . . . . . . . . . . . . . .CrystalTwo Switch with two 20” (508 mm)
BNC cables
Input . . . . . . . . . . . . . . . . . . . . . . . . . quantity 1, female BNC
Output . . . . . . . . . . . . . . . . . . . . . . . quantity 2, female BNC
Operating frequency. . . . . . . . . . . . . 6.0 to 4.5 MHz
Insertion loss . . . . . . . . . . . . . . . . . . less than 1 dB at specified operating frequencies
Basic size . . . . . . . . . . . . . . . . . . . . . 1.5” (38.1 mm) hexagonal x 1.139” (28.931 mm)
Thick
Clearance for connectors . . . . . . . . . 2.5” (63.5 mm) radius from hexagon’s center
Mounting . . . . . . . . . . . . . . . . . . . . . 4 ea. #6-32 and 2 ea. #10-32 tapped holes for
mounting in various orientations
Switching voltage . . . . . . . . . . . . . . . 24 V AC or DC nominal, polarity independent
Switching power . . . . . . . . . . . . . . . . 200 mW, nominal
Control wires . . . . . . . . . . . . . . . . . . insulated hookup wire approximately 16”
(406.4 mm) long, inline rectifier module allows use
of AC or reverse polarity hookup
Temperature range. . . . . . . . . . . . . . 0 – 50°C
Humidity . . . . . . . . . . . . . . . . . . . . . . 5 – 85%
Switching time . . . . . . . . . . . . . . . . . less than 0.1 second; exclusive of measurement
instrument’s acquisition, optimization and
stabilization requirements