TechnipFMC Smith Meter AccuLoad IV, Installation & Maintenance Manual

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AccuLoad IV Installation & Maintenance Manual
Maintenance 62
6.1.1 ST and QT Models in Special Environments
The ST and QT models have aluminum, explosion-proof enclosures. In corrosive environments, such as
near salt water, it is the user’s responsibility to increase the inspection intervals for verification of the flame-
path integrity. Inspection intervals vary with local conditions, and it is the user’s responsibility to determine
appropriate intervals. The most effective preventive maintenance is periodic washing of the enclosure to
remove any salt buildup on exterior surfaces. It is recommended to wash using a mild soap applied with a
sponge or cloth, followed by a low-pressure, non-saline water rinse.
It also is very important to maintain the painted exterior finish of the equipment. If exterior corrosion is
detected, the following steps should be taken on the exterior surface:
1. The finish should be cleaned.
2. Any corrosion should be removed by mechanical means.
3. Prepare the exterior for painting.
4. The affected area should be repainted with a corrosion-inhibiting paint. The factory paint is two-
component, polyurethane-acrylic enamel Polane T manufactured by Sherwin Williams in Precision Tan
and Carbon Black.
Enclosures located in corrosive environments are required to have a coating of petroleum jelly or
TechnipFMC grease (part number 644886401) to flanged metal surfaces (including the flame path
between the window and cover and the keypad cover) to offer a protective barrier and reduce the effects of
exposure to wet, salty air. The surface should be cleaned and new grease applied each time the enclosure
cover is opened for inspections or maintenance.
6.1.2 N4 and SA Models in Special Environments
The N4 and SA models have 304 stainless steel enclosures. In corrosive environments, such as near salt
water, it is the user’s responsibility to prevent degradation of the stainless steel finish. The most effective
preventive maintenance is periodic washing of the enclosure to remove any salt buildup on exterior
surfaces. It is recommended to wash using a mild soap applied with a sponge or cloth, followed by a low-
pressure, non-saline water rinse.
In severe conditions, segregation from the environment or an application of a protective coating is
recommended.
6.2 Touch-Screen Screen-Protector Maintenance
The touch screen for the AccuLoad IV is a resistive element that uses a thin layer of glass as the top-most
layer to enable the sensor to work when wet, when you are wearing gloves, and to avoid damage from
exposure to hydrocarbons and other chemicals. To protect this thin layer of glass, a plastic screen protector
is applied to it.
Over time, the screen protector may become scratched, marred, clouded, or otherwise damaged and
should be replaced. To do so, complete the following steps:
The touch screen and screen protector should only be cleaned with a clean, damp cloth.