Servomex xendos 1800 Series, Быстрый старт

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xendos 1800 Series
8
2.5 Sample and calibration gas connections
CAUTION

The sample gas must not be admitted to the analyser until a period
of 4 hours has been allowed for warm up, this will prevent
condensation of the sample in the measuring cell.

The inlet pressure and flow rate for the sample or calibration gas
must not exceed the limits specified in the following table or
damage could occur. If necessary, an external pressure reducing
device must be used to reduce the pressure to the stated limits.

When pressurising the sample system for the purpose of leak
testing ensure that pressure is increased and decreased slowly.
High internal flow rates created when the pressure is changed
rapidly will damage the measuring cell.
xendos 1800 Series - Sample and Calibration Gas Condition Requirements
Sample
Base
Analyser
High-flow cell
or Bypass
AFCD
AFCD +
Sample Pump
AFCD +
BPR
Inlet
Pressure # 0.04 psig
0.3 kPag min
# 0.05 psig
0.4 kPag min
1 to 5 psig
7 to 35 kPag
-0.03 to 1 psig
-0.2 to 7 kPag
17 to 22 psia
119 to 154 kPaa
Flow
Rate 50 to 250
ml/min
50 to 70l/hour
(60l/hr
nominal.)
1.2 to 3.5
l/min
1.6 to 1.8
l/min
1.0 to 2.0
l/min
Vent Pressure
11.5 to 18 psia (80.5 to 126 kPaa) - DO NOT RESTRICT ANALYSER VENT
Dew Point
Non-condensing at ambient temperature
Temperature
-10

C to +50

C (+14

F to +122

F)
Particulates
< 3 µm (micro metres)
Condition
Clean, non-flammable* and free from oil and condensate**
Connections
¼” NPT.INT Inlet / Outlet Connectors (See Figure A) (Female)
# Adjust pressure and flow externally to provide sample flow rate
* For flammable samples use a xendos 1900 Series analyser
** For corrosive samples use a solvent resistant cell option
AFCD - Automatic Flow Control Device BPR - Back Pressure Regulator