Excellence in level and flow measurement.

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Quantum 2+

Intelligent Pumping Station Controller

Quantum 2+

The Quantum 2+ controller includes all the features within Quantum 2 with the exception of the second mA output for pumped flow rate. The Quantum 2+ controller instead features 1x mA output and the addition of 1x mA input

Quantum 2+ is a fully-featured pump controller, using Pulsar's non-contacting ultrasonic technology including DATEM digital echo discrimination to provide solid performance and sophisticated level management. Quantum 2+ includes 10 relays (digital outputs) and 7 digital inputs, and have optional RS485 digital communications (Modbus and optional Profibus DP V0 and V1) allowing the status to be monitored and the unit to be programmed remotely. Additionally Quantum 2+ has the option of a large on-board data-logging facility (256kb).

Quantum 2+ Features:

  • Highly intelligent pump controllers
  • Time to spill calculation and warning
  • Automatically resets tripped pumps
  • 1x mA output and 1x mA input
  • Easy prompt led set up
  • RS485 Modbus and Profibus DP V0 and V1 options
  • 10 relay outputs and 7 digital inputs
  • Pump efficiency alarm function
  • Peak power tariff avoidance
  • This unit can also be configured using Pulsar's PC Suite software

Quantum 2+ sales dataQuantum 2+ manualQuantum 2+ case studies

Full listing of Pulsar user manuals.


  • Pump Control
  • Time to spill warning requirements
  • Reduction in power cost requirements
  • Pump monitoring and control
  • Water and waste water
Fascia Mount: 200 x 112mm x108mm (7.87 x 4.41 x 4.25in)
Weight: Nominal 1.3kg (2.9lbs)
Enclosure material/description: Stainless steel and polycarbonate, UL94-V0 front and bezel
Transducer cable extensions: 2-core screened
Maximum separation: 1000m (3280ft)
IP rating (fascia mount): IP64
Max. and min. temperature (electronics): -20ºC to +50ºC (-4ºF to +122ºF)
Flammable atmosphere approval: Safe area: compatible with approved dB transducers allowing installation to zone 0
CE approval: See EC Declaration of Conformity in the manual
Accuracy: 0.25% of the measured range or 6mm (whichever is greater)
Resolution: 0.1% of the measured range or 2mm (whichever is greater)
Range: Depending upon transducer, from 0mm (dBMACH3) to 40m (dB40) (0.41 - 130ft)
Rate Response: Fully adjustable
Description: DATEM (Digital Adaptive Tracking of Echo Movement)
Analogue I/O: 1 off Isolated (floating) outputs (to 150V) of 4-20mA or 0-20mA into 500&Omega (user programmable and adjustable) 0.1% resolution
1 Isolated (floating) input (to 150V) 4-20mA or 0-20mA source, open circuit voltage 33V, 22V at 4mA, 14V at 20mA (user programmable and adjustable) 0.1% resolution
Digital output: Full Duplex RS232
Volt-free contacts, number and rating: 5 form "C" (SPDT) rated at 5A at 115V AC (Relays 1, 2, 3, 4 & 5)
5 form "C" (SPDT) rated at 3A at 115V AC (Relays 6, 7, 8, 9 & 10)
Display: 6 digits plus 12 character text, plus bargraph with direction indicators, remote communicator identifier and program/run/test mode indicators
Digital Inputs: 7 Digital Inputs
Min. Input Voltage 4.5VDC
Max. Input Voltage 30VDC (Max Current 3mA per Input)
24 VDC Input Supply maximum total current 24mA
On-board programming: By integral keypad
PC programming: Via RS232
Programming security: Via password (user selectable and adjustable)
Programmed data integrity: Via non-volatile RAM, plus backup
Power supply: 115V ac +5%/ -10% 50/60Hz
230V ac +5%/ -10% 50/60Hz
18-36V dc
10W maximum power (typically 6W)
Fuses: 100mA at 170-240VAC
200mA at 85-120VAC