NLS Industries
Calibration Equipment

Calibration Equipment

Calibration equipment verifies and adjusts the accuracy of field instruments like gauges, transmitters, and switches against a known reference standard, work that supports traceable measurement rather than a one-time factory setting. NLS sources portable pressure calibrators, temperature dry-block calibrators, and multifunction process calibrators built to support traceability consistent with ISO/IEC 17025 practice, for Saudi instrumentation maintenance programs.

Every gauge, transmitter, and switch drifts from its calibrated value over time, through vibration, temperature cycling, or simple component aging, which is why a maintenance program needs equipment that can apply a known, traceable reference input and check the field instrument's response against it. Calibration equipment is that reference: it doesn't run the process, it verifies and adjusts everything that does.

NLS sources three main categories. Portable pressure calibrators generate and measure a known pressure using a hand pump or electronic pump, applied directly to a gauge, switch, or transmitter under test. Temperature calibrators, most commonly dry-block types, heat or cool a metal insert to a stable, known temperature that a thermocouple or RTD under test is inserted into, avoiding the mess and slower stabilization of a liquid bath. Multifunction process calibrators combine several of these functions with the ability to source and read 4-20mA and HART signals, useful for calibrating and troubleshooting a transmitter loop in one trip to the field. Traceability, the documented chain linking a calibrator's own reference back to a national or international standard, is the practice that ISO/IEC 17025 defines for testing and calibration laboratories, and it's the standard the equipment itself is built to support rather than a claim about any particular lab's accreditation.

On Saudi projects, calibration equipment supports the periodic instrument checks that hospital, aviation, and industrial QA/QC programs require, technician field verification of pressure gauges and switches on rotating equipment, and loop checks on transmitters feeding a DCS or SCADA system before a facility hands over to operations.

NLS quotes calibration equipment against the parameter to be calibrated (pressure, temperature, or process signal), required range and accuracy, and whether a calibration certificate is needed with the unit, and returns a priced quote in USD. Standard portable calibrators in common ranges typically source fastest; multifunction units and calibrators with wide ranges or tight accuracy specifications are more often built or configured to order and carry a manufacturer-confirmed lead time.

Specifications

  • Categories: portable pressure calibrators, temperature dry-block calibrators, multifunction process calibrators
  • Pressure calibration: hand-pump or electronic pump reference source
  • Temperature calibration: dry-block type, stable metal insert reference
  • Process signal: source and read 4-20mA and HART loop signals
  • Traceability practice referenced: ISO/IEC 17025 (equipment supports traceable calibration, not a lab accreditation claim)
  • Certificate option: calibration certificate available with the equipment

Frequently Asked Questions

What's the difference between a portable pressure calibrator and a deadweight tester?+

A portable pressure calibrator uses a hand or electronic pump with an internal reference sensor, suited to field verification work. A deadweight tester generates pressure using calibrated weights on a piston, a higher-precision bench reference typically used to calibrate the calibrators themselves rather than for routine field checks.

Does a dry-block calibrator replace a liquid temperature bath?+

For most field and workshop calibration work, yes. A dry-block calibrator heats or cools a metal insert instead of a liquid, which avoids spillage and cleanup and stabilizes faster, though a liquid bath still holds an edge in absolute accuracy for the tightest laboratory-grade temperature calibration work.

Does NLS's own lab hold ISO/IEC 17025 accreditation?+

NLS supplies calibration equipment built to support traceable calibration work consistent with ISO/IEC 17025 practice. That's a statement about the equipment's capability, not an accreditation claim about any particular calibration lab, and any accreditation status should be confirmed directly with the lab performing the calibration.