ABB Navigator 550 Sodium wet-section, Процедуры замены запасных частей

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3 Safety
2 INF13/115–EN Rev. B | Navigator 550 | Sodium wet-section| Spares replacement procedures
3 Safety 4 Replacement procedures
Warning.
These procedures must be carried out by a trained technician.
CHEMICAL

Ensure personal protective equipment (PPE) such as
gloves
and
eye protection
are worn during any
maintenance.

Observe all health and safety procedures for handling
chemicals.

To familiarize yourself with handling precautions, dangers
and emergency procedures, always review the Material
Safety Data Sheets prior to handling containers,
reservoirs and delivery systems that contain chemical
reagents and standards.

Take care if cleaning any spillages and observe all relevant
safety instructions. Wipe up any spillages using clean
water.

Perform general cleaning of the wet-section using a damp
cloth only – mild detergent can be used as a cleaning aid.
Do not use Acetone or any organic solvents.
ELECTRICAL

Isolate all high voltage supplies to the transmitter before
performing replacement procedures.

The wet-section is vulnerable to electrostatic damage.
Wear an anti-static strap or dismantle the wet-section on
an anti-static workbench.

Ensure all electrical connections are kept dry at all times.
GENERAL

Shut off the external sample supply to the wet-section
before performing replacement procedures. When a
procedure is complete, restore power to the transmitter,
sample to the wet-section at the correct flow rate and, if
necessary, calibrate the wet-section – refer to the
wet-section Operating Instructions (OI/ASO550-EN) for
calibration instructions.

Dispose of the old components in accordance with the
guidelines contained in the Operating instructions
(OI/ASO550-EN).
Fig. 4.1 Sodium wet-section – replacement procedures
Modbus cable assembly –
see Section 4.5, page 5
PCB housing seals,
PCB cover and PCB –
see Section 4.1, page 3
Flowmeter assembly
and flowmeter cable(s) –
see Section 4.2, page 3
Constant-head
assembly, pressure
switch assembly and
pressure switch cable –
see Section 4.3, page 4
Solenoid valve assembly
and solenoid valve cable(s)
– see Section 4.4, page 4