A pressure calibrator rarely fails in front of you. It fails months later, when someone traces a drift back to the day a technician connected it to a transmitter with process fluid still in the line. Particles, moisture, and residues do not stop at the fitting: they travel into the instrument, and the reference you calibrate against quietly stops being a reference.
The new Additel ADT760A and ADT760S address that risk directly, alongside improvements in control stability and automation for field and laboratory pressure calibration.
Both are automatic pressure calibrators that combine pressure generation, control, and measurement in a single portable unit. Instead of assembling a pump, a reference gauge, and a readout, a technician carries one instrument that produces the pressure, holds it, and measures it. The ADT760A adds an electrical channel for mA and V measurement, 24 mA source, 24 V loop power, and pressure switch testing, and its -DL models add HART communication and data logging. The ADT760S is the non-PC version.
Accuracy is specified as a percentage of the full scale of the installed internal module.
Control stability has been improved, so the calibrator reaches setpoints faster and holds more consistent readings once there. In practice this shortens each calibration cycle and tightens repeatability across repeated test runs, which is what makes a calibration record defensible rather than merely complete.
Programmable calibration routines let a team define a procedure once and run it the same way every time. The same sequence, the same dwell times, the same setpoints, whether the work is done by a senior technician in the lab or by a contractor at a remote site. Reducing operator dependency is not about speed, it is about traceable procedures that hold up when someone asks why two calibrations of the same instrument disagree.
The attachable Contamination Prevention System sits between the device under test and the calibrator, acting as a barrier against particles, moisture, and residues carried by process media. It is available as an optional accessory, the Additel 9231, for the -D and -MA models.
The value shows up over time. Contamination inside a calibrator affects internal components, shifts accuracy, and turns into unscheduled maintenance and instrument downtime. Blocking it at the connection keeps the instrument performing as specified and keeps it in service instead of in the repair queue. In oil and gas, chemical processing, and manufacturing, where field instruments are rarely clean, that barrier is the difference between a calibrator that lasts and one that drifts.
Field calibration of transmitters and gauges in oil and gas, exposed to harsh process conditions. Pharmaceutical and regulated environments, where validated processes and documented calibration workflows are mandatory. Aerospace and advanced manufacturing, where the stability and precision of the reference decide whether a critical component passes or fails.
AV-TEK Consulting supports customers in evaluating how the ADT760 series fits existing calibration workflows: assessing application requirements, defining the right configuration and pressure ranges, and aligning the instrument with NIST-traceable calibration practices. AV-TEK also provides calibration and repair, so the calibrator that certifies your instruments stays traceable itself.
Both combine pressure generation, control, and measurement in one portable unit. The ADT760A adds an electrical channel (mA and V measurement, 24 mA source, 24 V loop power, pressure switch test), and its -DL models add HART communication and data logging. The ADT760S is the non-PC version, with three channels instead of four. Share your application and AV-TEK will confirm which version and configuration fit your requirements.
Three models: LLP up to ±30 inH2O (±75 mbar), D from -12.5 to 35 psi (-0.86 to 2.5 bar), and MA from -12.5 to 375 psig (-0.86 to 25 bar).
It attaches between the device under test and the calibrator and acts as a barrier against particles, moisture, and residues from process media, reducing internal contamination that would otherwise affect accuracy and increase maintenance.
Programmable routines standardize the procedure, so results stay consistent across different operators and locations. That supports traceable, repeatable calibration records.
Oil and gas, chemical processing, pharmaceutical and other regulated environments, aerospace, and advanced manufacturing.
Yes. AV-TEK provides NIST-traceable calibration and repair support, and helps define the right configuration before purchase.
🔗 Ready to Upgrade Your Calibration Equipment?
Contact AV-TEK Consulting to evaluate the right configuration of the ADT760A and ADT760S for your applications and field requirements.
👉 Add the ADT760A or ADT760S to your cart
📞 Need Help Choosing the Configuration?
Get in touch with our team to explore how the ADT760A and ADT760S can meet your calibration needs. Tell us your pressure range and accuracy requirements, and we will confirm the right configuration for your application.
👉 Contact us at: sales@avtekconsulting.com
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Houston, TX, 77080
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