IM-P198-05 MI Issue 2 7
Warning!
Agency approval for hazardous location installations varies between flowmeter
models.
Consult the flowmeter nameplate for specific flowmeter approvals before any
hazardous location installation.
Hot tapping must be performed by a trained professional, regulations often
require a hot tap permit. The manufacturer of the hot tap equipment and/or the
contractor performing the hot tap is responsible for providing proof of such
a permit.
All flowmeter connections, isolation valves and fittings for cold/hot tapping must
have the same or higher pressure rating as the main pipeline.
For RIM20 rotor Insertion flowmeter installations, an Insertion tool must be
used for any installation where a flowmeter is inserted under pressure greater
than 3.45 bar g (50 psi g).
To avoid serious injury, DO NOT loosen a compression fitting under pressure.
To avoid potential electric shock, follow National Electric Code or your local
code when wiring this unit to a power source. Failure to do so could result in
injury or death.
All ac power connections must be in accordance with published CE directives.
All wiring procedures must be performed with the power Off.
Before attempting any flowmeter repair, verify that the line is not pressurized.
Always remove main power before disassembling any part of the mass
flowmeter.
Caution!
Calibration must be performed by qualified personnel. Spirax Sarco strongly
recommends that you return your flowmeter to the factory for calibration.
In order to achieve accurate and repeatable performance, the flowmeter must
be installed with the specified minimum length of straight pipe upstream and
downstream of the flowmeter’s sensor head.
When using toxic or corrosive gases, purge the line with inert gas for a minimum
of four hours at full gas flow before installing the flowmeter.
For RIM20 rotor Insertion flowmeter installations, the sensor alignment pointer
must point downstream in the direction of flow.
The ac wire insulation temperature rating must meet or exceed 85 °C (185 °F).
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