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(Prices
listed are USA prices. Foreign prices are higher, plus taxes.)
Temperature Control
Accessories
Extended
Temperature For Doty MAS & Other Probes
All
of our probes have variable temperature capabilities, but extended
temperature options are also available. For solids, the standard
NB range is -80°C to 120°C, while the standard WB range is -140°C
to 170°C. The extended VT range is
typically -160°C
to 250°C in
a wide bore probe (with a Doty temperature controller). To
extend the temperature range, we add extra insulation and thermal
baffles, utilize
special materials, add additional room air, and in some cases add
extra dewars to the probe.
#
95980 Probe
Exhaust Dewar .......................
$ 850
A
Probe Exhaust Dewar is required for sample temperatures
above 160°C
and below -100°C (except with cryogenic, high-temp,
and a few other special probes - which have a different exhaust
system).
The exhaust
dewar is included in extended VT options but may be ordered
separately. Please supply the probe serial number when ordering
to ensure
the proper dewar is supplied. |
Cold-Gas
Supply Systems
Doty
cold gas supplies include a heat exchanger with one, two
or three intertwined pre-cooling coils; appropriate cooling
coil sets; and one, two or three transfer lines to carry
the cooled gas to the probe. (The pre-cooler counterflow
heat exchanger in the neck of the storage dewar greatly
improves cooling efficiency – an important consideration
for extended runs.)
The heat exchanger is connected to the Doty probe with the flexible,
foam-insulated transfer lines with fully dewared quick connects. This
system provides efficient cold gas supply for temperatures down to -160°C.
The cold gas supply shown below is connected to a probe at one end and
connected to a flow meter and regulated gas supply on the other. The
system is designed to be used with the probe
exhaust dewar (listed above) and standard
50-liter nitrogen dewar (listed below) -- both of which must be ordered
separately.
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#
99860 Single-SupplyCold
Gas System ...... $3,400
This cold-gas supply
is for, standard speed or wideline probes and
other single-supply applications. Also
for OptiMASTM cold zone cooling when
VT gas is supplied by a separate system. |
Doty
Cold Gas
Supply System
(See installation
diagram below.) |
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95970 Dual-Supply Cold Gas System ........
$5,000
For spinning with separate bearing
and drive or for other
dual-supply applications.
(Includes two intertwined pre-cooling coils, two cooling coil sets, and two transfer
lines.) |
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95975 Triple-Supply Cold Gas System ......
$6,650
For dual-supply spinning and OptiMAS “cold
zone” cooling.
(Includes three intertwined pre-cooling coils, three cooling coil sets, and three
transfer lines.) |
#
86020 50-Liter Liquid Nitrogen Dewar ........
$1,575
This
dewar is intended to be used with the Doty Cold-Gas System. (A
Nitrogen Dewar already owned or purchased locally may
be used if compatible with the cold-gas system, however
specifications
must match.)
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Doty
Cold Gas Supply - Installation Diagram
(Single Supply Shown)
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For
info on main probe controller units… Doty
Probe Contoller
Please
contact accessories@dotynmr.com with
questions.
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