Emerson Rosemount CT5100 Ex, Quick Start Manual

Page: 32 / 86

• The main power input circuit breaker can now be SET to ON .
• Check that the display controller lights up. The analyzer will then begin to power-up.
2.3.6 Temperature sensor and cell heater
The sample cell is controlled to operate at a pre-set temperature. This involves a heater
and a temperature sensor. To test these, check that a temperature reading is displayed
against temperature on the display controller as described in
Pressure and Temperature
screen .
2.3.7 Pressure sensor
The pressure sensor monitors the pressure in the analysis cell. To test that it is functioning,
check that a pressure reading is displayed under pressure on the Beka Display Controller as
described in
Pressure and Temperature screen .
The reading will be approximately 760 Torr at atmospheric pressure. If desired, cap off the
gas inlet and use an external pump to evacuate the cell. Make sure that the pressure drops
as expected.
NOTICE
A Torr is a non-SI unit of pressure, defined as 1/760 of standard atmospheric pressure, and
is equal to the fluid pressure of 1 mm of mercury.
2.3.8 Analog output cables
In order to generate a 4-20 mA output, the analyzer must be left for 90 minutes to warm
up, and the analysis cell must be at the correct pressure.
The 4-20 mA outputs will operate when the analysis cell temperature and pressure are
within the required test range. It is not essential to flow sample gas through the system,
nitrogen or atmospheric air will be adequate for this test.
With the analyzer at operating temperature and pressure, ensure that a current between
4 mA and 20 mA is generated on each 4-20 mA output. This can either be measured as a
current with a multimeter, or as a gas concentration through the control station.
2.3.9 Ethernet
To test the Ethernet connection, connect a remote laptop to the Ethernet port and
attempt to connect to the internal PC as described in the separate connection procedure.
It is not necessary to run gas sensor on the laptop, once connected, enter the command
exit to disconnect again.
2.3.10 Seal glands
Where poured seal glands are a local industry requirement for cable termination, they
should be made in accordance with the manufacturer’s instructions once acceptance tests
have been made on the system to ensure that the analyzer does not need to be removed.
Install Quick Start Guide
August 2018 D-7010-0055
32 Rosemount
™
CT5100 Ex