Oil Meter HZ 6 DR

With LCD digital display and pulse generator for digital processing

New! With pulse generator for digital processing

Oil Meter HZ 6 DR

Perfect Technology for Exact Consumption Control.

Technical Data Oil Meter HZ 5 DR

Article No. 89 316 008
Flow Range: 1 to 60 l/h

0.8 to 50.4 kg/h

Burner Output 10kW to 600kW
Measurement Accuracy: ±1%
Reed Contact 1 Impuls/0,02 Liter
Nominal Pressure: 25 bar
Pressure Drop: 0,05 bis 0,2 bar
Fuel Oil Type: EL nach DIN 51603
Temperature Range: -5°C … +70°C
Connecting Thread: DIN 3852-X-G 1/8” innen
Weight: 0,6 kg
Schematic wiring diagram of HZ5-DR pulse counter and pulse output

Schematic wiring diagram of HZ5-DR pulse counter and pulse output

Installation Options

Mounting Options HZ5-DR / HZ6-DR

Pules Output

  • Connection via screw-clamp terminals
  • Reed contact: max. 30 VDC | Imax = 6 mA
    Rs = 4.7 K-Ohm/0.6W (observe polarity)
  • Principle: The power circuit of a counter or other registering device
    attached to the plus and minus terminal clamps is closed via the reed contact and 4.7 K-Ohm impedance. The input impedance should be at least 50 K-Ohm to ensure that the additional counter reaches its switching threshold.
  • Pulse value: 1 pulse = 0.02l | 50 pulses = 1l
  • Maximum frequency at 60l/h approx. 1Hz
    (Due to the reed contact [-debouncing-], use remote counter with dampened input)


  • 6-digit with 0.1 l display resolution
  • 3V/950 mAh lithium-ion battery
  • Lasts at least 9 years (depending on temperature and moisture)

Ambient Temperature / Atmospheric Moisture

  • 0 to 60 degrees Celsius
  • Max. 85% RH, non-condensing
    CE-compliant electromagnetic compatibility
  • DIN EN 61326-1 2006-10 version

Function of Counter and Output

  • The 6-digit LCD display with 6mm high figures has a display resolution of 0.1 litres (1 decimal point).
  • A built-in 3V/950 mAh lithium battery supplies power. Its operational life is approx. 9 years.
  • The internal reed contact supplies 50 pulses per litre, or 20ml per pulse, to the output clamps. The electronics in the counter turn this into a decadic value with 0.1 litres after 5 pulses in order to operate the counter.
  • Due to the 4.7 K-Ohm internal impedance, a connected remote counter should have an input impedance of at least 50 K-Ohm.
  • The mounting instructions must be observed without fail if an additional counter is connected to the output.

Available Accessories

  • Attachment sets for pressure-side fitting to 4/6 mm lines
  • Attachment sets for suction-side fitting (single-line system) to 8/10/12 mm lines