MercuryiTC
©2014 Oxford Instruments Omicron NanoScience. All rights reserved.
Page 163
17.6 Electrical isolation
Item Specification
Sensor terminals to chassis >50 VDC
Heater terminals to chassis >50 VDC
Communications 0 V to chassis >50 VDC
Communications to sensor or heater >50 VDC
The mains-supply to chassis conforms to EN61010 and UL/CSA standard.
The mains-supply is double-insulated from all other terminals.
17.7 Environmental specifications
Item Specification
Recommended ambient temperature 20°C to 30°C
Ambient temperature (with reduced performance) 0° to 40°C
Shipping and storage temperature -30°C to 85°C
Atmospheric pressure 800 hPA to 1060 hPA (2000 m to sea-level)
Maximum relative humidity 75% non-condensing
Maximum humidity
91% at 20°C when connected to a pc compliant
with a 60950-1 standard.
Pollution degree 2
17.8 Level meter board
Helium probe specifications
Parameter Specification
Excitation current settings 20 mA to 280 mA in 20 mA steps
Excitation current accuracy ±5%
Excitation voltage 40 V maximum
Probe resistance 0 to 300 ohms
Probe resistance measurement accuracy ±0.2%
Probe resistance measurement stability ±0.1%
Probe resistance ADC measurement resolution Better than 0.005%
To Next Page
Loading...