ABB PT809 3BSE080235R1 Single mode,BiDi

Largest selection of modification and accessory kits

• Cost-effective solutions

• Allows for application and configuration flexibility

• Kits include auxiliary contacts, coils, surge-suppression, fifth-pole, mechanical  interlocks,

control circuit fusing, NEMA type enclosures, selector switches, indicating lights, control

transformers, space heaters and more 

300-line magnetic motor starter

All these features plus an edge on productivity

The 300-line starter is a full voltage, magnetic motor starter with encapsulated coil and three-leg

block overload relay with visual trip indicator, manual reset and manual weld check.

It incorporates all the features and benefits users demand and has

received standard specification approval by many major manufacturers.

The 300-line is available in the following forms:

NEMA sizes 00–6

• Standard non-reversing

• Reversing

• Two-speed

• Combination

and in a wide selection of enclosures:

• Type 1 general purpose

• Type 3R rainproof, sleet-resistant

• Type 4 watertight, dust-tight

• Type 4X watertight, dust-tight, corrosion-resistant

• Type 12 driptight, dust-tight

Close Coupled Sampling System

The sensor assembly is mounted on the process wall and the probe and filter assembly extends into the process gas stream.

A pneumatic injector is used to draw a sample from the process stream and feed it to the sensor head.

Oxygen analysis is performed by an industry standard zirconia cell.

Carefully metered dilution air is added and then calibrated for COe before the high sensitivity catalytic sensor is used to measure unburned combustibles.

The dilution air ensures a sufficient supply of oxygen to allow the COe sensor to function properly under abnormal

process conditions where extremely low combustion oxygen levels may occur.

The tightly coupled extraction system enables tight temperature and pressure control of the sensor and sample gas.

This provides a stable background for target gas measurements, which improves the accuracy of the measurements.

Flame arrestors are installed in the sampling path to prevent flashbacks during startup when the combustible

content of the process gas exceeds the Lower Explosive Limit (LEL), thus ensuring safe operation.

Flashback is prevented if the combustible content of the process gas exceeds the Lower Explosive Limit (LEL) during startup, shutdown, or process disturbances.

The sampling channel is kept hot to prevent acid gas condensation and corrosion.