Operating Instructions; Damage To The 'Flameproof (Enclosure)- Ex D' Type Of Protection; Protection Against Electrostatic Discharges; Repair - ABB TTF300 Manual

TTF300 FIELD-MOUNT TEMPERATURE TRANSMITTER | CI/TTF300-EN REV. H

Operating instructions

DANGER
Risk of explosion due to hot parts
Hot parts inside the device pose an explosion hazard.
• Never open the device immediately after switch-off.
• A waiting time of at least four minutes should be observed
before opening the device.
DANGER
Explosion hazard when opening the device
Explosion hazard when opening the device with activated
power supply.
• Before opening the device, switch off the power supply.
Damage to the 'Flameproof (enclosure)– Ex d' type of
protection
The cover thread is used as a flameproof joint for the
'Flameproof (enclosure) – Ex d' type of protection.
• During assembly / disassembly of the device, make sure that
the cover thread does not get damaged.
• Devices with damaged threads must no longer be used in
potentially explosive atmospheres.

Protection against electrostatic discharges

The painted surface of the housing and the plastic parts inside
the device can store electrostatic charges.
WARNING
Risk of explosion!
The device must not be used in areas in which process-related
electrostatic charging of the housing may occur.
• The device must be installed, maintained and cleaned such
that any dangerous electrostatic charge is avoided.

Repair

DANGER
Explosion hazard
Explosion hazard due to improper repair of the device. Faulty
devices must not be repaired by the operator.
• The device may only be repaired by the ABB Service
Department.
• Repairs on flameproof joints are not permitted.
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