Additel 761-LLP/D



Product Description

Additel 761-LLP/D

  • Fully automated pressure calibrator with built-in pressure generator / controller to as high as 15 psi  (1 bar) or as low as 0.01 Pa (0.00004 inH2O)
  • 0.02%FS/ 0.05%FS accuracy
  • Dual pressure modules
  • Built-in filter and liquid trap with venting system prevents contamination of the calibrator
  • Portable (16.3 lb)

With a built-in high performance electronic pump and precision pressure controller, the 761 series portable automated pressure calibrators provide a turn-key solution for calibration of gauges, transmitters, and switches both in the field and in the laboratory. In a portable package, this calibrator can automatically generate pressures from 95% vacuum to 15 psi (1 bar) with 0.02% FS accuracy. To improve the calibrator accuracy, two pressure modules with differing ranges are built-in and integrated with the internal pump and controller.

  The 761-LLP is specially designed for low pressure calibration, and pressures can be set to as low as 0.01 Pa (0.00004 inH2O) with a control stability better than 0.05 Pa (0.0002inH2O)..

  With optional external pressure modules (160 series), the 761 can measure pressures up to 10,000 psi (700 bar) with 0.025%FS accuracy. In addition to the pressure generation, control, and measurement capabilities, the 761 also features HART communication capability, supplies 24V loop power, and reads the current or voltage produced by the pressure transducers. The 761 is a state of the art automated pressure calibrator which brings automated pressure calibration to the field.


• Pressure Range
  Pressure generated by built-in pump and controlled automatically from 90% vacuum to 15 psi (40 bar)

  Pressure measured with external pressure modules (160 series) to 10,000 psi (700 bar)
  Accuracy (Fully temperature compensated)
    0.05%FS (ADT761-LLP)

• Control Stability

  ADT761-LLP:  < 0.05 Pa (0.0002 inH2O)

• Contamination prevention system
  Built-in filter and liquid trap with venting system prevent contamination of the calibrator 

  Solid particles can be blocked by built-in filter
  A small amount of Liquid can be collected by the built-in liquid trap
  Both solid particles and liquid can be blown out through the venting system

• Automation and Test Program
  Fully Automated pressure calibration

  Task preset and auto run
  Auto step

• Easy to Use
  User friendly interface 

  Intuitive icon driven menu structure

• Sourcing and Measuring electrical signals
  Measure mA with 0.01%RD + 1.5μA accuracy

  Measure V with 0.01%RD + 1.5mV accuracy
  Source/sink 0 to 22mA current
  24 VDC loop power supplied to pressure transmitter during test
  Automated switch test

• Misuse Protection
  Up to 30V misuse protection  on any two sockets

• Display
  7″ LCD color screen (800X480)

• Documenting and data logging
  Task management capability

  Internal memory stores 200 tasks
  Download tasks and upload results

• HART Communication capability
  Support HART instrumentation

• Rechargeable battery:
  Rechargeable battery with up to 8 hours operation between charges

• Leak testing:
  Apply leak test to an external pressure system to determine the magnitude of pressure variations due to leaks

• Pipeline Protection: 
  Special design the pipeline layout to avoid possible blockage and leakage

• Portable:
  Only 16.3 lb

• Multi Lingual Interface
  English, German, French, Italian, Spanish, Portuguese, Simplified Chinese

  (Traditional Chinese, Japanese and Russian are available per request)

• NIST Traceable:
  NIST traceable calibration with data (included)



• Control Stability

  ADT761-LLP: < 0.05 Pa (0.0002 inH2O)

• Pressure Connections
  One ADT100-761 Hose Test Kit with quick connector (included except with ADT761-LLP)  

  1/8 BSP female connector on calibrator
  Two 1/4NPT(or 1/2NPT, 1/4BSP, M20×1.5) female hand-tight connectors on the external pressure manifold (included except with ADT761-LLP)

• External Pressure Module Connection
  External pressure module connector

• Electrical Connection
  0.156 inch (Ø4mm) banana sockets

• Documenting and data logging
  Task management capability 

  Internal memory stores 200 tasks 
  Download tasks and upload results

• Display
  7″ LCD color screen (800×480)

  Display rate: 5 readings per second

• Pressure Units
Pa, kPa, MPa, psi, bar, mbar, inH2O 4°C, mmH2O 4°C, inH2O 20°C, mmH2O 20°C, inHg 0°C, mmHg 0°C, kgf/cm2

• Power
  Battery: Rechargeable Li-ion Polymer battery (included)

  Li-Battery working time: ~8 hours
  Recharge time: ~3 hours
  External Power: 110/220V Power adapter (DC 27 V) (Included)

• Environmental Specification:
  Operating temperature: 32°F to 122°F (0°C to 50°C) 

  Compensated Temperature: 32°F to 122°F (0°C to 50°C)
  Storage temperature: -20°C to 60°C 
  Humidity: <90%, non-condensing

• European Compliance:
  CE Marked

• Communication
  RS232 (DB9/F, environmentally sealed)

  Baud rate: 2400, 4800, 9600, 19200, 38400, 57600, 115200
  Data length: 7 Bits, 8 Bits 
  Stop bit: 1 Bit, 2 Bits 
  Address: from 1 to 121

• Dimension
  11.65″ X 7.32″ X 7.09″(296mm X186mm X180mm)

• Weight:
   16.3 lb (7.4 kg)

• Warranty:
  18 months

• Pressure Range



Pressure Range

Pressure Module 1

Pressure Module 2





Low/Differential Pressure


-25  to 25 mbar 
(-10 to 10 inH2O)

-2.5 to 2.5 mbar
(-1 to 1 inH2O)


-25 to 25 mbar
(-10 to 10 inH2O)



-0.95 to 1 bar
(-13.5 to 15 psi)

-25 to 25 mbar
(-10 to 10 inH2O)


-0.95  to 1 bar
(-13.5  to 15 psi)


* One year accuracy (including 1 year stability). FS specification applies to the span of the module range.

** 0.05% FS accuracy (including 6 months stability). One year accuracy is 0.05% FS calibration accuracy combined with 0.05% FS one year stability.

*** Additel 761 calibrators support 160A series intelligent digital pressure modules that are available for gauge, vacuum and absolute pressure from -15 psi to 10,000 psi (-1 bar to 700 bar). Accuracy from 0.025%FS includes operation over 14°F to 122°F (-10°C to 50°C), one year stability and calibration uncertainty. For detailed specification refer to 160A series pressure modules datasheet.

• Electrical Measurement and Source Accuracy





Voltage Measurement



±(0.01%RD + 1.5 mV)

Current Measurement



±(0.01%RD + 1.5 μA)

Current Source

0.000 to 22.000mA


±(0.02%RD + 2.2 μA)

Switch Test

If the switch has detective Voltage, the range is from 3V to 24V

DC 24V output

24V ± 0.5V, max:50mA

Order Info


    About us

    บริษัท เมสเชอร์เมนท์เอเชีย จำกัด
    Measurementasia Co.,Ltd.

    99 Moo. 3, Khlong 5, Khlong Luang,
    Pathumthani 12120



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