Revision 5
20
August 2021
2.2.4 Instrument Air
The system requires
instrument air
at 55 to 116psig (3.8 to 8 barg) at a delivery rate of 22
SCFM (37m
3
/ h). Instrument air is used for cabinet cooling, cabinet purge, zero gas, and
aspirator drive air, so it is essential that the provided air meet the above pressure and flow
rate requirements. The instrument air must be clean and dry, and meet the requirements for
instrument air stipulated in ANSI/ISA Standard 57.3-1975 R (1981).
2.2.5 Steam
For the Model 943-TGXeNA, a single low pressure steam supply is required, as indicated in
Table 2.
Table 2: Steam Supply Requirements
Location
Minimum
Pressure
Maximum
Pressure
Minimum
Temperature
Maximum
Temperature
Sample
Probe Nozzle
2.8 barg
(40 psig)
5.5 barg
(80 psig)
140°C (285°F)
160°C
(320°F)
2.2.6 Area Classification
The hazardous area classification and ingress protection for the Model 943-TGXeNA is
shown below:
2.3
Unpacking
The 943-TGXeNA analyzer system is packed for shipment in a wooden crate.
Galvanic Applied Sciences Inc. advises unpacking the system according to the following
procedure.
1. Remove the lid by undoing the marked lag bolts.
2. Once the lid is off, remove the excess packing material, boxes and sample probe from
the shipping crate. The sample probe will be wrapped in packing material. Probes with
a guide length of 5.5 feet (165cm) or longer are packed in a separate crate.
3. Visually inspect the small packages and the sample probe to ensure that no major
damage has occurred. If damage has occurred, contact the shipping company and
Galvanic Applied Sciences. Place the small packages and the sample probe aside in
943-TGXeNA
Class I, Division 2, Groups C and D, Temperature Code T3, Type Z Purge
IP Protection:
NEMA 4
Содержание 943-TGXeNA
Страница 130: ...Revision 5 130 August 2021 Figure 82 Oven Cabinet Door Removed ...
Страница 131: ...Revision 5 131 August 2021 Figure 83 Control Cabinet Door Removed ...
Страница 132: ...Revision 5 132 August 2021 Figure 84 Power Steam Air Signals Connection Details ...
Страница 133: ...Revision 5 133 August 2021 Figure 85 AC Wiring Schematic ...
Страница 134: ...Revision 5 134 August 2021 Figure 86 DC Signals and Wiring Diagram ...
Страница 135: ...Revision 5 135 August 2021 Figure 87 Flow Diagram ...