Taema OPTI-NO Manuel D'utilisation page 60

Taema OPTI-NO
TECHNICAL SPECIFICATIONS FOR THE REGULATOR
This specification define the characteristics of the OPTI-NO gas supply device in the case of the Taema
CL310001 pressure regulator not being used.
The OPTI-NO unit and the gas supply device are designed to be used with NO/N
≤ 1000 ppm.
The material of the components in contact with the gas must be NO compatible, in order to avoid it decomposing
and NO forming.
x
Cylinder connection: if there are no specific connectors for this mixture (see national standards) a Nitrogen type
connector should preferably be used.
The OPTI-NO unit must be supplied at a pressure which can be adjusted between 0 and 8 relative bar.
It must be protected against any possible excess pressures from 9 relative bar upwards.
It must also be protected against impurities or particles entering by means of a grade 40 sintered stainless steel
filter (stops 99.9% of particles of diameter
A GYROLOK ® ‚ type stainless steel «double bush» system for 6 mm tubes must be used for the connection to
the unit.
The pressure regulation device must have the following characteristics:
- operating temperature -20°C to +50°C
- pressure increase coefficient when closed R
- irregularity coefficient I
- fidelity coefficient f
P' - P"
f = ————
P
where P is the outlet pressure setting and P' and P" are extreme values of this pressure in continuous or
intermittent operation. This coefficient is expressed in % of the pressure P, for a same flow rate.
- internal/external leak rate
The materials used must be checked to ensure they are bio-compatible.
The use of any other device than the pressure regulator code CL310001 must be validated by a check of the
accuracy of the concentrations of NO:
A - 2
code YL019000
3 / 20µm).
4
1 / 0.1 (test in accordance with ISO 2503)
4
1 / 0.5% .
4
1 -7 3
/ 3x10 atm.cm /s of helium.
4
± 0.5 ppm from 1 to 5 ppm
± 1 ppm from 6 to 10 ppm
± 2 ppm from 11 to 20 ppm
Version 1.0 10/98.
2
1 / 0.1 (test in accordance with ISO 2503)
4
GB
mixtures with an NO content