INFICON STM-2 USB Thin Film Rate/Thickness Monitor - Manual (Page 17)

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STM-2 Operating Manual
1.4 Specifications
Compatible Sensor . . . . . . . . . . . . . . Non-shuttered single QCM sensor
Sensor Inputs . . . . . . . . . . . . . . . . . . 1
Sensor Input . . . . . . . . . . . . . . . . . . . Female BNC
Measurement Frequency Range . . . 6.0 to 5.0 MHz (fixed)
Frequency Resolution . . . . . . . . . . . ± 0.03 Hz @ 6 MHz
Measurement Interval. . . . . . . . . . . . 0.10 s
Reference Frequency Stability . . . . . ± 2 ppm
Thickness and Rate
Resolution/Measurement . . . . . . . . . ± 0.037 Å @ tooling/density = 100/1
Fundamental frequency = 6 MHz
Thickness Display Resolution . . . . . 1 Å
Interface . . . . . . . . . . . . . . . . . . . . . . USB, 5 m (16.4 ft.) maximum length
1.4.1 Power
Rated Supply Voltage . . . . . . . . . . . . 400 mA, 5 V (dc)
USB Isolation Voltage. . . . . . . . . . . . 1000 V
USB Isolation Capacitance. . . . . . . . 300 pF typically
1.4.2 Operating Environment
Usage . . . . . . . . . . . . . . . . . . . . . . . . Indoor use only
Operating Temperature . . . . . . . . . . 0 to 50°C (32 to 122°F)
Storage Temperature . . . . . . . . . . . . -10 to 60°C (14 to 140°F)
Humidity . . . . . . . . . . . . . . . . . . . . . . Up to 85% RH, non-condensing
Altitude . . . . . . . . . . . . . . . . . . . . . . . Up to 2000 meters
Pollution Degree. . . . . . . . . . . . . . . . 2
1.4.3 Size and Weight
Size . . . . . . . . . . . . . . . . . . . . . . . . . 11.4 x 7.6 x 2.5 cm (4.5 x 3 x 1 in.)
Weight . . . . . . . . . . . . . . . . . . . . . . . 57 g (2 oz.)
1.4.4 Computer Requirements
Operating system . . . . . . . . . . . . . . . Windows 8, Windows 7, Windows Vista,
Windows XP, or Windows 2000
USB Port(s) . . . . . . . . . . . . . . . . . . . One USB 1.1 (or later) port for each STM-2