Reference Manual MAS2600: Installation
RM 6000-01-001-24 December 2013
36
Installation
As part of the installation please check that:
• the serial numbers on the transducer, amplifier and lid of amplifier box complies. The
serial numbers are found on the S/N on the amplifier box at the bottom line and on the
transducer S/N on the range label.
• the transducer is fitted in the correct tank.
• the transducer is correctly connected to the amplifier.
• all cable glands are properly secured to the amplifier box. Use torque of 6 Nm.
• the amplifier box is mounted in such a way that the breather tube cannot be flooded.
• the cable is fastened with cable clips with a distance of max. 50 cm.
• the cable isolation is not damaged (cracks, weld spatter, burns etc.).
• shut-off valves can be either ball valves or other valves not generating over pressure
exceeding 4 x the transducer range between valve seat and transducer when the valve
is closed.
Note! The white and brown wires in the transducer cable are only used when a Pt100
sensor is built into the transducer.
As for flange mounted applications it is recommended that a ball valve is fitted in the front
of the transducer to facilitate testing and calibration of the transmitter.
The power cable / 4 - 20 mA signal cable shall be a cable with solid insulation; the minimum
wire insulation must be 0.25 mm for each wire. Using a shielded cable for the 4-20 mA sig-
nal, the shield shall be connected at the earth terminal of the I/O system (e.g. simple gauge
or tank monitoring system) and not in the amplifier box. Using a shielded cable ensures
maximum protection against electrical noise.
If the amplifier box is installed in an area with over pressure or negative pressure in rela-
tion to the atmospheric pressure in the tank, the breather tube must be directed to an area
with atmospheric pressure equal to the pressure inside the tank. This applies to gauge
transmitters only. For absolute transmitters this has no affect, due to the reference to
absolute vacuum and not atmospheric pressure. This is also the reason why no breather
tube is necessary.
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