608 LN2 Automatic FTIR Detector filling system

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NORHOF LN2 Microdosing System #608

FTIR detector filling system

Universal automatic filling system for FTIR detectors as from Bruker or Shimadzu;
Plug and play refilling system, to refill the detector at a pre-set time interval;
Usable for overnight measurements;
Possible to control extra filling;
in order an automatic fill action can not disturb your automatic measurements
Fully safe to use inside the laboratory
Always ready to use
Very slow and gentle filling rate
Easy setup, on most FTIR detectors, no tooling needed
Universal adaptor for Bruker Vertex70 or Vertex80 or similar
Adaptor for Shimadzu AIM8800 or similar

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Norhof 608 LN2 Automatic FTIR Detector filling system Data Sheet

Norhof 608 LN2 Automatic FTIR Detector Filling System Data Sheet

Specifications and Options

Norhof LN2 microdosing systems

Liquid Nitrogen (LN2) is used as the cooling medium and is taken from a storage vessel (Dewar) with low pressure (max. 300 mBar) and delivered (pumped) through a fill line to the application in a micro dosing way.

The Norhof LN2 microdosing system is designed to overcome the drawbacks of LN2 under pressure in which a solenoid valve is used to switch the supply ON / OFF. You may compare the Norhof system with a water tap, but instead of giving water, it gently gives liquid nitrogen, with an adjustable flow, possible to regulate from some drops, up to 1 Liter/minute. Our pump can pump LN2 up to 4 meters above the pump itself

The reservoir Dewar can safely stand next to your working place. When you need a small amount of LN2, the system is ready to supply by only pressing on the pump head. By pressing on the pump head, the system starts building a small over pressure, forcing the liquid gently to rise into the fill line, and fall into your little Dewar, or other small LN2 container. After your pressure on the pump head is released, the system shuts off automatically, and the flow stops.

Working principle

The pressure above the liquid level inside the Dewar is built by heating a small amount of liquid in the bottom of the Dewar. With only up to 100 mBar of over-pressure, the liquid will gentle rise out of the rise pipe and fall into the fill hose. Because we evaporate some LN2 to build pressure, there is no adding of ice inside the Dewar, such as with manual systems which use air from the environment.

When LN2 is required, a small overpressure is generated by a small heater element in the LN2, and liquid flows out of the system like water from a tap, without spilling, noise, vibrations etc.

Software

To display sensor temperatures, vessel pressure, status of LED’s on the pump etc. our Norhof Monitoring software is included with any #608 series pump. This software works under Windows ’98 – 2000 – ME – NT – Vista – W7 – Windows 10 – Windows 11

With each #608 system a software Datalogger function is included. This recorder allows you to document any parameter value over time and to preset the time interval for your detector.

608 series Technical Specifications

Flow rate	Up to 0,5 liter per minute
Average working pressure	100 mBar (adjustable with the supplied software)
Maximum working pressure	300 mBar
Reaction time	+/- 1 minutes for cooling down the fill line (with 1.6 meters fill line)
Power connection	115V / 230V AC with supplied power supply or 12-24 Volt AC/DC
Power consumption	average 10 watt, during pumping 50 watts
Model	608-100-035	608-100-050	608-100-100
Storage container volume	35 Liter	50 Liter	100 Liter
Outside dimensions (diameter)	460 mm	460 mm	500 mm
Height dimensions	802 mm	917 mm	1235 mm
Weight (empty, full)	15 / 42 kg	17 / 59 kg	34 / 115 kg
Static holding time (days)	112 days	122 days	164 days
Standard fill line	1,6 m line length, 6,25 mm OD, 4 mm ID, Teflon FEB tube, with 32 mm OD Armaflex foam insulation
System includes	Dewar, pump, fill line 1,6 m, phase separator, fill tubes, power supply, cables, 1 level sensor, PC software.
Working modes	Automatic fill control with timer (1 sensor)
External control	5 volt signals for ON/OFF and RS232 signals for ON/OFF
PC software	Monitor software, to monitor pump and data logging
Alarms/warning acoustical/ visual / mechanical	Dewar empty, Dewar 4 liter LN2 left, broken sensor(s), frozen alarm, mechanical overpressure protection valve.
Options	Tailor-made Adaptor with sensor for all brands of detectors Custom built adaptor to fixate sensor(s) on application Transport trolley 5 wheels (10 cm height) Stand for pump (when Dewar is refilled)
Dewar Trolley option	900-400-000	900-400-000	900-400-000
Floor Stand option	900-400-100	900-400-100	900-400-100
Custom made adapter	600-400-000	600-400-000	600-400-000

608 Series FTIR Adaptors

Standard we have adaptors to fit on systems of Bruker, Netzsch, Shimadzu, Thermo Fisher, Perkin Elmer, Agilent, Horiba, Mettler Toledo but also for other detectors we have adaptors available or make a tailor-made design.

The majority of this system finds use in the field of laboratories, research centers where FTIR measurements are made and where a safe and unattended refill of LN2 is required.

608 series applications:

– unattended automatic refill of LN2 for FTIR detectors
– refilling of laser detectors
– Overnight measurements
– Automatic sequences of measurements
– auto filling of other small LN2 reservoirs, with very low LN2 flowrate

Norhof pump stand

Norhof power transformer

Norhof Trolley

50 liter Dewar with trolley

50 liter Dewar with trolley strapped

12 liter Dewar

35 liter Dewar

50 liter Dewar

100 liter Dewar

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608 LN2 Automatic FTIR Detector filling system