Additel ADT761-LLP/D Automated Pressure Calibrators

Additel ADT761 Pressure Calibrator

  • 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 (12.4 lb)  


With a built-in high performance electronic pump and precision pressure controller, Additel's 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 100hPa to 1200hPa.

The 761-BP is specially designed for low pressure calibration . With a quartz pressure sensor , the accuracy of 761-BP can achieve 0.01%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
Ordering Info
Video Demo

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)  0.01%FS(ADT761-BP)
0.05%FS (ADT761-LLP)
Control Stability
ADT761-LLP: <0.05Pa (0.0002 in H2O)
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 or V with 0.01% RD + 0.005%FS 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

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

Only 12.4 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: <0.05Pa (0.0002 in H2O)
Pressure Connections
G1/8 Female on calibrator   Two 1/4NPT(or 1/2NPT, 1/4BSP, M20×1.5) female hand-tight connectors on the external pressure manifold (included)

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

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

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

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  12.4 lb (5.6 kg)

Warranty 18 months

Pressure Range

 Type   Model  Pressure Range  Pressure Module 1  Pressure Module 2
Range Accuracy Range Accuracy
 Low /
 -25 to 25 mbar
(-10 to 10 in H2O)
-2.5 to 2.5 mbar
(-1 to 1 in H2O)
 -25 to 25 mbar
(-10 to 10 in H2O)
-0.95 to 1 bar
(-13.5 to 15 psi)
-25 to 25 mbar
(-10 to 10 in H2O)
-0.95 to 1 bar
(-13.5 to 15 psi)

* One year accuracy (including yearly stability) except ADT761-LLP which is 0.05%FS calibration accuracy and 0.05%FS yearly stability.

* * Additel 761 calibrators support 160 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 160 series pressure modules datasheet.

Electrical Measurement and Source Accuracy

Range  Resolution  Accuracy 
 Voltage Measurement ±30.0000v 0.1mV ±[0.01%RD + 0.005%FS]
 Current Measurement   ±30.0000v  0.1UA  ±[0.01%RD + 0.005%FS]
 Current Source  0.000 to 22.000mA   1uA  ±[0.02%RD + 0.005%FS]
 On-Off Measurement   if the switch has detective voltage, the range is from 3V to 24V
 DC 24v ouput  24V ± 0.5V, max: 50mA


Additel ADT761 Ordering Guide 









ACCESSORIES [included]

 Code      Description  Qty 
 ADT106   External Pressure Manifold [except ADT761-LLP]  1 pc 
 9618   110V / 220V external power adapter   1 pc
 9722  Chargeable Li-ion battery 1 pc
 9022  Test leads for calibrator 1 sets
 9020  Short circuit cable 1 set
 9907  Carry case for ADT761 calibrator and accessories 1 pc
 9060  Pressure module connection cable 1 pc
 O-rings [except ADT761-LLP] 20 pcs
 Manual 1 pc
 Tools 1 set
 Hose 2 pc
 NIST traceable Calibration Certificate 1 pc


ACCESSORIES [optional]

  Code   Description 
  ADT100-761-4N   Hose test kit, 5 feet flexible hose, 04mm tube to 1/4NPT hand-tight quick connector
  ADT100-761-4B  Hose test kit, 5 feet flexible hose, 04mm tube to 1/4BSP hand-tight quick connector
  ADT106-N  External Pressure Manifold [with two 1/4NPT hand-tight quick connectors]
  ADT106-B  External Pressure Manifold [with two 1/4BSP hand-tight quick connectors]
  ADT106-M  External Pressure Manifold [with two M20X1.5 hand-tight quick connectors]
  ADT160  Pressure modules [please check Additel AST160 datasheet]
  9060  Pressure module connection cable

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