Altek 234 Loop Calibrator | Replace it with the updated PIE 334

Altek 234 Milliamp calibrator – no longer in production!

The Altek 234 was designed back in 1984 and discontinued in 1999. The PIE 334 matches the Altek in fit, form and function with a few features bringing the design into the 21st century. It has a rubber boot and lower profile switches for protection in the field and a backlit display making it easier to use in the dark corners of your plant. Instead of the three expensive 9V batteries in the Altek the PIE uses four less expensive common “AA” batteries. The PIE has the same resolution and accuracy as the Altek with longer battery life letting you calibrate more instruments between battery changes.

PIE 334 milliamp loop calibrator vs Altek 234 Discontinued - Suggested replacement PIE 334 or PIE 334Plus

Advantages of the PIE 334 over the Altek 234 milliamp loop calibrator

  • Backlit Display with Larger Digits
    Easier to read in dark areas of the plant
  • More Resistant to Accidental Damage
    Rubber Boot and Stronger Switches
  • Separate Battery Compartment with 4 “AA” Batteries
    No more removing housing with screwdriver to replace three expensive 9V batteries. Calibration seals remain intact.
  • Calibrate More Devices Between Battery Changes
    Drives more loop instruments at 24 Volts (up to 1200 Ohms) for entire battery life. The Altek 234 output voltage drops as the batteries run down.
  • Includes Certificate of Calibration
    All PIE Calibrators come with a free signed and dated certificate. Altek calibrators come only with an unsigned Statement of Calibration Practices with a certificate of calibration available for an extra charge.

Looking for more than just an Altek 234 replacement?

The PIE 334Plus does everything the Altek 234 or PIE 334 can do with higher resolution and simple to use loop troubleshooting features. Calibrate smart transmitters with the built-in 250 Ohm resistor for HART® compatibility, high resolution to 0.001 milliamp and the the ability to check loop power supplies or batteries with built-in DC Voltage measurement range. Save time troubleshooting loops by using the Advanced Loop Diagnostics to find hidden loop problems caused by moisture and corrosion in junction boxes. This feature is only found in PIE Calibrators!

Altek 234 Discontinued - Suggested replacement PIE 334 or PIE 334Plus
Discontinued Altek 234

Recommended Replacement
PIE 334
PIE 334
Recommended Replacement
PIE 334
PIE 334Plus
Recommended Replacement
PIE 334Plus

Why choose a PIE 334 or 334Plus instead of some other brand of milliamp calibrator? We are the same team that designed the Altek 234, 334 and the Altek 334A and no other manufacturer has as much milliamp calibrator experience as PIE. PIE also manufactures a complete line of milliamp, voltage, thermocouple, RTD and frequency single function calibrators as well as multifunction calibrators matching and surpassing the Altek line of handheld calibrators.

When it is time for service on your Altek milliamp calibrator PIE has the most experience in calibration and repair of Altek electronic calibrators. Or, if it is time to upgrade or replace a failing Altek 234 calibrator, we offer a discount on a new PIE calibrator similar to the Altek that you are replacing – in working or non working condition! Click for repair and calibration pricing.

Replacing a different Altek Calibrator? Click Altek Calibrator Replacements or download the complete Altek Calibrator Replacement Guide