HygroPort I.S. User’s Manual
3.4
Operational Requirements
Operational requirements are as follows:
Sample gas fl low rate:
0.4 to 1.0 scfh
Operating pressure:
0 to 5000 psig
Environmental Requirements – HygroPort I.S. Instrument
Operating temperature range:
-4 to +122°F (-20 to +50°C)
Humidity:
0 to 100% RH (non-condensing)
Altitude:
Up to 6562 ft (2000m)
Charger Electrical Requirements
Charger supply voltage:
100 V to 240 V AC (+10%, -15%)
50 to 60Hz (±5%), 8 VA
Instrument Gas Connections (Figures 3.2 and 3.4)
POSSIBLE INJURY! The tubing, valves and other apparatus
attached to this instrument must be adequate for the
maximum pressure which will be applied, otherwise
physical injury to the operator or bystander is possible.
Sample gas connections are made via the Gas In (2) and Gas Out (1) ports located on
the rear of the instrument as shown in
Figure 3.2.
The HygroPort I.S. is supplied with a sintered disc filter installed in the Gas In port,
and with a large bore orifice fitting installed in each of the gas ports. These fittings
have an 1/8” NPT female thread to allow the user to connect other components of
their choice. A range of available fittings and sample flow accessories are shown in
Figure 3.4
.
Atmospheric pressure or system pressure dewpoint can be measured depending on the
configuration of the orifice fittings shown in Table 3.1.
For gas pressures outside the range 15-150 psig (1 to 10 bar), the instrument
requires external flow control components, as shown in Figure 3.4
.
Gas Inlet port
Gas Outlet port
Sample gas
fitting
fitting
pressure
Small bore orifice Large bore orifice
15-150 psig (1 to 10 bar)
Large bore orifice Small bore orifice
15-150 psig (1 to 10 bar)
Large bore orifice Large bore orifice
0-5000 psig (0-350 bar)
Table 3.1
Adaptor fittings
Issue 6, December 2019
26
Kahn Instruments
3.4.1
3.4.2
3.5
!
Dew point at
Atmospheric
System
Either (using other flow
control components)
Summary of Contents for HygroPort I.S.
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