Metretek MTEK6000 Series, Руководство пользователя

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MTEK6000 SERIES USER'S MANUAL
January 2002 2-7
TRANSDUCERS IN THE MTEK6000
The MTEK6000 uses a precision strain gauge
pressure transducer mounted inside the unit,
combining maximum accuracy with low
power consumption. To sense gas
temperature, the MTEK6000 employs a
highly linear and stable device, a platinum
resistive temperature detector (RTD). Case
temperature sensing is accomplished with an
on-board precision reference integrated
circuit (IC).
CONNECTING THE PRESSURE
TUBING
WARNING
You must DEPRESSURIZE THE METER
and its associated piping before you make
pressure piping connections.
FAILURE to
do so may result in EXPLOSION and FIRE ,
causing SERIOUS PERSONAL INJURY
and PROPERTY DAMAGE .
Do NOT
attempt to connect any piping or
fittings to a meter or pipe under pressure.
Do NOT
SMOKE while connecting gas or
test pressure to the meter.
Note
Federal Standard 192.02 requires a shut-off
valve between the pressure source and the
instrument. A needle valve is supplied with
the optional pressure piping kit for this
purpose. Its rating is 1,500 PSIG MAOP.
As a minimum requirement, connect the
pressure tubing as shown in Fig. 2-7. An
optional pressure tubing connection kit (part #
2019-0009B-001) can be shipped with each
instrument. Fig. 2-8 is the recommended
pressure installation for ease of operation.
Additional piping and valve are required for
the installation and are not supplied. Use
Teflon tape or pipe seal compound on all
threaded connections. The tubing supplied in
the kit may be longer than you need for your
installation. You can cut or coil the tubing,
but do not make any sharp bends in it
(minimum radius is
3/4
"). Tighten all the
connections and perform a leak test once the
meter and instrument are pressurized.
Figure 2- 5 Pressure Connections