General Description Of The System; Liquid Nitrogen Generator (Emp-14W); Helium Gas Compressor (Model:sw115); Psa (Pressure Swing Adsorption) Nitrogen Generator - Ulvac EMP-14W Instruction Manual

1. General Description of the System

1.1

Liquid nitrogen generator (EMP-14W)

EMP-14W Liquid Nitrogen Generator provides liquid nitrogen by cooling down,
condensing and liquefying nitrogen gas with the cold head (Model:S050).
Liquid nitrogen is stored the inside the dewar, and can be dispensed to another container
with easy operation. With the optional automatic transfer system, liquid nitrogen can be
automatically transferred to the dewars of customers' equipments.
Nitrogen gas source can be selected from two types; (1) PSA nitrogen generator, (2)
Membrane nitrogen generator.
Liquid nitrogen generator is hereafter referred to as "EMP-14W" in this manual.
1.2

Helium gas compressor (model:SW115)

This unit is located on the lower part of EMP-14W, compress helium gas to supply to the
cold head to provide cryogenic
control circuit of EMP-14W.
Helium gas compressor is hereafter referred to as "SW115" in this manual.
For details of this equipment, please refer to the operation manual for "SW115".
1.3 PSA (Pressure Swing Adsorption) Nitrogen Generator (type GN-10i)
PSA Nitrogen Generator GN-10i generates highly concentrated nitrogen from air using
adsorber and supply the gas to EMP-14W. The nitrogen generated here is used as the
material for liquid nitrogen and is also used to take out liquid nitrogen.
PSA nitrogen generator is hereafter called "GN-10i" in this manual. When we describe
things that are in common with membrane nitrogen generators, they are collectively
referred to as "nitrogen generators".
Please refer to the operation manual of GN-10i for details.
1.4

Membrane Nitrogen Generator (type IM-120)

Membrane Nitrogen Generator IM-120 takes in dry air from user's equipments and
generates highly concentrated nitrogen with membrane separation technology. The
nitrogen generated here is used as the material for liquid nitrogen and is also used to take
out liquid nitrogen.
Membrane nitrogen generator is hereafter called "IM-120" in this manual. When we
describe things that are in common with PSA nitrogen generators, they are collectively
referred to as "nitrogen generators".
Refer to the operation manual of IM-120 for details.
temperatures.
ULVAC CRYOGENICS INCORPORATED
It is automatically turned on and off by the
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