American Magnetics 135 & 136 Liquid Helium Level Instruments (CE-Marked) - Manual (Page 20)

8 Rev. 3
Introduction
Specifications
Physical
Dimensions (Standard): 97 mm H x 213 mm W x 273 mm D
(3.8" H x 8.4" W x 10.75" D)
Weight (Standard): 1.8 kg (4.0 lbs.) for Model 135
2.0 kg (4.3 lbs.) for Model 136
Dimensions (Rack Mount): 89 mm H x 483 mm W x 273 mm D
(3.5" H x 19" W x 10.75" D)
Weight (Rack Mount): 2.3 kg (5.0 lbs.)
Environmental
Ambient Temperature: Operating: 0 °C to 50 °C (32 °F to 122 °F)
Nonoperating: − 20 °C to 60 °C ( − 4 °F to 140 °F)
Relative Humidity: 0 to 95%; non-condensing
a. Under extreme radiated electromagnetic field conditions (3V/m at 150 MHz to 170
MHz), the accuracy may be degraded to an absolute error of ± 0.3 cm.
b. Maximum active sensor length is limited to 64 inches for input line voltages below
105 VAC or 210 VAC.