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Altek 334A mA Loop Calibrator

Altek calibrators are some of the oldest and most revered calibrators for their ease of use and simplicity, yet they still outperform many of the modern multi-function calibrators used today. The Altek 334A is the original single function mA calibrator!

With the Altek 334 loop calibrator, you’ll be able to check 4 to 20 mA loop functions quickly and accurately. You’ll have mA, % of Span, and DC V at your fingertips. Source or read milliamps. Simulate or read the two-wire transmitter. With the 334, performing calibrations on the mA transmitter, recorder, or I/P transducer has never been easier. You’ll be able to confirm controller outputs or read the mA signal at any point in the loop. This versatile loop calibrator also boasts an accuracy rating of ±0.03%. A specialised feature of the Altek 334 is a switch for instantly outputting 4 or 20 mA with accuracy to ±0.006 mA.

Calibrate transmitters, recorders, controllers, alarms, indicators, process data acquisition and computer systems using the 134-2. The Altek 334A comes with a 3 year factory warranty, but based on the lifespan of units out in the market, this little calibrator could still be capable of doing the job well after you've retired!

Out of stock. Allow 3 - 4 weeks for delivery.
$1,894.00 ex GST

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Model 4353E
Manufacturer Altek
Manuf. Model 334A
Manufactured In U.S.
  • Sources from 0.00 to 24.00 mA / -25.0 to 125.0%
  • Reads from 0.00 to 52.00 mA / -25.0 to 300.0%
  • Reads from -99.99 to +99.99V DC
  • Accuracy of up to 0.03%
  • Resolution of 0.01 mA / 10 mV
  • Simulates in loops powered from 3 to 100V DC
  • Powers and measures 2-wire transmitters to 27V DC
  • Drives up to 1200Ω loads
  • Instantly outputs at three points from 0.00 to 24.00 mA
  • Speed sensitive digital potentiometer
  • Fuseless over-voltage protection to 135V AC / DC
  • Overload current protection to 25 mA
  • Operating temperature range of -20 to +60°C
  • Small and lightweight (weighs only 220g)
  • Calibrator
  • Test leads (fixed)
  • Batteries (3 x 9V)
  • Soft carry case
  • Instructions
  • Statement of calibration practices
  • 3 years against defective materials and workmanship
  • Excludes batteries and leads
Returns Policy
  • Covered by our 7 day 'No Questions Asked' return guarantee
  • See our help section for full details

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