For the detailed listing of country and product-specific approvals, refer to the Approvals Quick Reference Guide (108M1756).

For additional technical documentation, please log in to bntechsupport.com and access the Bently Nevada Media Library.

The 3701/55 ADAPT ESD system is not certified for installation in Class I Division 1, or Class I Zone 0/1 locations, but it will support transducers installed in these locations via the use of galvanically isolated safety barriers or zener barriers. If galvanic isolators are used, no change is necessary to the installation. A removable ground jumper allows the monitor to support zener barrier installations. Removing the jumper will disconnect circuit common from chassis at the monitor so that chassis can be connected at the barrier.

Power supplies must be Class I, Div 2 or Class I, Zone 2 compliant for hazardous area installations.

Hazardous area installations require:

Relay contact voltages below 30 Vac rms, or 30 Vdc to minimize hazard.

Relay contact amperages below 5 Amps DC, or AC to minimize hazard.

Relay contact power below 100 Watts DC, or 100 VA AC to minimize hazard.

Inter-terminal base connectors to remain unused.

Certified Functional Safety (SIL) Systems

The 3701/55 ADAPT ESD system is certified as a SIL 3 device. The SIL 3 safety category is verified by methods outlined by IEC 61508, Part 1-7 safety standard.

SIL installations require:

Relay contact voltages below 250 Vac, or 250 Vdc.

Relay contact amperages below 1A AC or DC.

Relay contact power below 250VA AC, or 150W DC.

Inter-terminal base connectors to remain unused.

For the detailed listing of country and product-specific approvals, refer to the Approvals Quick Reference Guide (108M1756).

For additional technical documentation, please log in to bntechsupport.com and access the Bently Nevada Media Library.

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