Please help me how to connect BN3300400 Accelerometer to Gilchrist 3501 transmitter.

BN3300400 has 4 wires; pwr, com, in and shield. required -24Vdc and bias voltage is -8.5Vdc

3501 input have 3 terminations; shield, com and in

shawgrp.pdf (70 Kb, 19 downloads)

Hi Bro,

For Bentley Nevada, they separate the power and signal wire so in their system. The reason of having the extra wire. Generally, other manufacture of general-purpose accelerometer share the power and signal wire.
Another unique thing about Bentley accelerometer is the power has to constant at 24 VDC +/-0.5v and bias voltage is negative. Other manufacture have arrange for the power (usually 18-30 Vdc) and positive bias voltage around 8 to 12v
You can try jumping the power and signal wire on the BN3300400.

Confirm, the P/N. There is a BN 330400 accelerometer which by the way has a 3 pin connector, not 4.

John from PA

330400.pdf (23 Kb, 4 downloads)

From the user manual for the 330400 accelerometer.

John from Pa

330400_connections.pdf (179 Kb, 5 downloads)

Thank you John for the informations