72 400/54 Premium Shielded NMR Magnet System Product Overview
5 Agilent E5025 Cryogen Monitor
Technical specification
Helium probes supported Dual, standard type, max length 1.25m with
121 /m wire.
Nitrogen probes supported
• 400 to 800 MHz Agilent NMR magnets
User data display 8-digit red LED
User status display All status information is communicated via the
8-digit LED display.
User controls three push buttons: +,
, and -
Configuration / calibration of
Nitrogen and Helium probes
Can be performed via front panel. A portable
computer with an Ethernet connection can also
be used.
Default calibration For 400/54/ASP Premium Shielded magnet
Data logging
• Cryogen levels are logged in the unit after
every read operation, and can be downloaded
to computer via RS-232 or Ethernet.
• Estimated endurance: nine months.
Level read interval
• Nitrogen levels are refreshed every cycle (~5
secs) and recorded every eight hours (or
manual reading) coincident with the helium
readings.
• He level levels are recorded every 8 hours
during normal operation and every 30 seconds
during fill mode.
Nitrogen refill volume display
resolution
• 0% to 100% in 5% steps.
• 0% = bottom of refill volume
• F = 100% or full
• Display reading level flashes for levels ~ 5%
Helium refill volume display
resolution
• 0% to 100% in 1% steps
• 0% = bottom of refill volume
• Display reading level flashes for levels ~ 0%
Absolute helium physical
resolution (that is, resolution
that the unit can measure)
< ±2mm
Head unit size 76mm wide, 44mm tall, 125mm long
Head unit mass Approx. 250g
Primary PSU size 50mm wide, 40mm tall, 95mm long
Power requirements
• 15 Watts power consumption
• Universal mains input (100-240V 50/60Hz)
Connector A Underside, central, TNC for connection to
nitrogen level probe, and for unit mounting
Connector B Underside, far end, transverse, 15 D type, for
power and helium level probe
Connector C RJ45, back panel, for Ethernet communication
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