Inlet Specification - Thermo Scientific Prima PRO User Manual

Technical Description: Inlet
Rapid Multi-Stream Sampler
Specification
C-2 Prima PRO & Sentinel PRO Mass Spectrometers User Guide
Warning! Before working on the inlet assembly the following
points should be noted.
The inlet is heated at temperatures up to 120°C. Care must be

taken to avoid burns.
The inlet contains moving mechanical parts. Movement could

start unexpectedly.
Mains voltages exist in the supply to the main heater.

The remainder of the inlet (including the sample tube heater

and stepper motor) is driven from a 24 Vdc supply.
In general, it is recommended that the inlet is switched off,

the mains and 24 Vdc cables disconnected, and the unit be
allowed to cool before carrying out any service work.
Inlet
The following table summarizes the specifications for this inlet
system. Detailed discussion can be found in following sections.
Table C–1. Inlet system specification
Number of inlets
Gas inlet connection (compression type tube
fittings)
Sample / calibration gas filtration requirement
Sample gas inlet flow rate (regulated
externally)
Sample gas inlet pressure. Maximum, exhaust
blocked to give above typical flow.
Maximum sample gas / line temperature
Maximum operating temperature
Exhaust requirements
Exhaust connection
Materials exposed to sample gas
32 or 64
1/4", 1/8", or 6 mm
 2 µm
(1)
Prima PRO
Typical: 0.5 Nl/min
Range: 0.1 to 5.0
(2)
Nl/min
Sentintel PRO
Typical: 5.0 Nl/min
Range: 2.0 to 10.0
Nl/min
(3)
0.2 bar(g)
(4)
Prima PRO: <0.1 bar
Sentintel PRO: 0.8
bar(abs)
(5)
200°C
120°C
Pressure range: 0.8 -
(3)
1.2 bar(abs)
Stability: ±3 mbar/min
(6)
1" O.D. tube stub
Stainless steel, Viton,
PTFE / graphite
Thermo Fisher Scientific