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Model BD306 Dual-Input Pump Controller Instruction Manual
1. I
ntroductIon
The BULLDOG BD306 is a multi-purpose, easy to use digital dual-input pump controller
ideal for level, flow rate, temperature, or pressure transmitter applications. It accepts current
and voltage signals (e.g. 4-20 mA, 0-10 V). Various math functions may be applied to the
inputs including addition, difference, absolute difference, average, weighted average, multi-
plication, division, minimum, maximum, draw, ratio, and concentration. This is in addition to
the signal input conditioning functions (linear, square root, programmable exponent, or round
horizontal tank calculations).
The displays, relays, and the analog output may be assigned to input channels A or B, or
match result channel C.
Three of the front panel buttons can be custom-programmed for a specific operation.
The basic model includes an isolated 24 VDC transmitter power supply that can be used to
power the input transmitters or other devices. An additional isolated 24 VDC power supply is
included with the 4-20 mA output option.
A fully loaded BD306 meter has the following: four SPDT relays, 4-20 mA output, and two 24
VDC power supplies. The BD306 capabilities may be enhanced by adding the following exter-
nal expansion modules: four SPST relays - creating an eight-relay dual-input pump controller,
two digital I/O modules with four inputs and four outputs each, and serial communication
adapters for use with BULLDOG Pro or Modbus RTU.
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DISCLAIMER:
The information contained in this document is subject to change without notice. Blue Ribbon Corp makes no representations
or warranties with respect to the contents herein and specifically disclaims any implied warranties of merchantability or
fitness for a particular purpose.
