The BB2 is a powerful control box that can support a combination of up to four different sensors from the X-series measuring dissolved oxygen, suspended solids, pH, ORP and open channel flow. BB2 will only support one CTX sensor due to power requirements. CBX sludge blanket must use BB1 control unit. Weighing less than 3 lbs (1.4 kg), the BB2 is distinguished by a three-button panel used to navigate the intuitive software. The plug & play capabilities of the BB2 ensure an easy installation. Calibration is performed in just a few simple steps. The unit is designed with cutting-edge digital technology and software, making the BB2 easily upgradeable in the field and ensuring that the customer has the latest software revisions. The control box comes standard with two 4-20 mA outputs. It also features an expansion slot for two additional mA outputs or digital protocol card for Profibus DP communication. The self-maintenance features of the BB2 further enhance its value in the plant. A built-in heater protects the unit against cold weather conditions. Relay outputs in the BB2 are used for high and low alarms or to provide a pulse for automatic cleaning. Output signals are held constant during cleaning cycle at the value prior to starting of the cleaning cycle.

Technical specifications

Weight: 2.8 lbs (1.3 kg)

Supply Voltage: 85 – 250 V, 50 – 60 Hz, 12 – 30 V DC

Power Usage: 20 W AC / 30 W DC

Ambient temp: -4 to 131˚F (-20 to 55˚C), (built-in heater)

Enclosure: NEMA 4X (IP 65)

Connected sensor: Displayed on screen at start-up & type

Output signal, Analog: Two 4-20 mA, galv. isolated, 450 ohm, Expansion card 4 outputs (option)

Digital: Profibus DP (option)

Alarm/cleaning: Two relays, selectable function

Connections: ½” npt or 0.3-0.45”Ø compression fittings

Sensor cable: 33ft (10m) length

Max Length: 330ft (100m) – 10 cables

Options and accessories: Mounting plate with sun shield for wall or handrail Expansion Card for 2 additional 4-20 mA outputs Expansion Card, Profibus DP, up to 4 outputs Splitters for 2 or 4 sensors Solenoid valve for sensor flushing