Seepex BN 5-12 Series, Operation & Maintenance Manual

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Electrical Connections
Normally Open SPST Contact SPDT Contact
Adjusting the Switch Setpoint
Adjusting to Switch on Increasing Flow
Adjust the setpoint as follows:
1.
Loosen the hold-down screws on the reed contact housing.
2. Slide the contact upwards along its rail until it reaches the stop.
3. Open the medium feed line and set flow to desired volume.
4. Slide the reed contact downwards until the contact actuates.
5. Tighten the hold-down screws.
6. Step 3 may be simulated by moving the float to the desired flow setpoint using a non-metallic
object (such as an ink pen) and adjusting the switch setpoint prior to installing the meter into the
process piping.
Adjusting to Switch on Decreasing Flow
Adjust the setpoint as follows:
1.
Loosen the hold-down screws on the reed contact housing.
2. Slide the contact downwards (toward inlet) along the rail until it reaches the stop. The reed contact
will be actuated at this point.
3. Open the feed line and introduce flow until the reed contact deactuates, then lower the flow value
to the desired minimum.
4. Slide the contact upwards (toward outlet) until the reed contact actuates again.
5. Tighten the hold-screws.
6. Step 3 may be simulated by moving the float to the desired flow setpoint using a non-metallic
object (such as an ink pen) and adjusting the switch setpoint prior to installing the meter into the
process piping.
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