Altek Calibrator discontinued? Replace with a PIE Calibrator.

Altek calibrators are no longer in production

Meet the new kid on the block – PIE Calibrators are the evolutionary update to the classic Altek Calibrator line of the last century. The new kid has the same parents (the same design team as the Altek calibrators). PIE Calibrators are shorter, thinner and lighter with rugged switches and rubber boots. Additional features including back-lit displays, automatic stepping & ramping, “AA” batteries instead of 9V batteries save money with longer battery life, more thermocouple and RTD types with better accuracy and even easier to use. Plus many models have advanced troubleshooting features not found on Altek or ANY other brand of calibrators. All of the Altek Calibrators have been discontinued and the remaining calibrators are WAY more expensive than the updated PIE Calibrators.
Download the complete Altek Calibrator Replacement Guide

History of Altek Calibrators

Altek was was founded in 1979 by two partners who were both vice-presidents of Rochester Instrument Systems (RiS). One of them had been with RiS since the early 1960s while the other was one of the founders of Transmation in 1964. Both of them were engineers with a strong background in analog electronics with decades of experience in process control equipment. Altek was privately owned until 1996 when it was sold to Transmation Inc and merged with the manufacturing part of the corporation to become Transmation Products Group (TPG). TPG was sold to Fluke in 2001 and manufacturing was moved to Everett Washington. Production of Altek Calibrators ceased in 2016.

Altek Milliamp Calibrators & Voltage Calibrators

Altek’s first products were loop powered 4 to 20 milliamp calibrators – Altek Model 45 and Altek Model 46 – the ages of the owners!  The product that excited customers was the Altek Model 134 which was a palm sized milliamp calibrator with three 9V batteries that generated 4 to 20 milliamps and had a toggle switch to quickly go from 4 to 20 milliamps without looking at the calibrator. The pocket sized replacement for the 134 was the Altek Model 134-2 which came out in 1999. The first big seller was the Altek Model 234 in 1984 which added a 3 1/2 digit LCD display to measure up to 19.99 milliamps.

With input from technicians the Altek Model 334 was designed in 1989 to have a full 4 digit display to 24.00 milliamps and a measure DC Volts range to check batteries and loop power supplies. The Altek Model 334A replaced the Model 334 in 2000 with a surface mount design. The high accuracy Altek Model 434 was released in 1999 and was the first handheld calibrator to include a 250 Ohm resistor for HART compatibility.

The Altek 235 was a voltage calibrator released in 1985 with ranges for millivolts, 1 to 5 volts and up to 20 volts dc. The Model 934 had a dual display that would simultaneously source and read milliamps and voltage.

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
Altek 334A
Discontinued
Altek 334 & 334A

Recommended Replacement
PIE 334
PIE 334
Recommended Replacement
PIE 334
PIE 334Plus
Recommended Replacement
PIE 334Plus
Altek 134-2 - Recommended replacement PIE 134
Discontinued Altek 134

Recommended Replacement
PIE 134
PIE 134 pocket sized milliamp loop calibrator
Recommended Replacement
PIE 134
Altek 434 Discontinued - Suggested replacement PIE 434
Discontinued Altek 434

Recommended Replacement
PIE 434
PIE 434 automated diagnostic calibrator detect hidden loop problems
Recommended Replacement
PIE 434
Altek 235 Discontinued - Suggested replacement PIE 235
Discontinued Altek 235

Recommended Replacement
PIE 235
PIE 235
Recommended Replacement
PIE 235
Altek 934 Discontinued - Suggested replacement PIE 532
Discontinued Altek 934
PIE 532
PIE 532
Recommended Replacement
PIE 532

Altek Multifunction Calibrators

Once Altek had a complete line of single function calibrators it was time to bring out a line of multifunction calibrators. The Altek 820 had a single display which sourced and read milliamp, voltage, thermocouple, ohms, RTD and frequency. It was introduced in 1997 and quickly became a big seller. The followup was the Altek 830 which had a dual display and the ability to measure pressure with external pressure modules.

Altek 820 Discontinued - Suggested replacement PIE 820
Discontinued Altek 820

Recommended Replacement
PIE 820
PIE 820 Multifunction Calibrator
Recommended Replacement
PIE 820
PIE 820 Elite Multifunction Calibrator
Recommended Replacement
PIE 820-ELITE
Altek 830 Discontinued - Suggested replacement PIE 830
Discontinued Altek 830

Recommended Replacement
PIE 830
PIE 830 Multifunction Calibrator
Recommended Replacement
PIE 830

Altek Thermocouple Calibrators

The big hit of 1980 was the Altek Model 22 Thermocouple Source which outputted 22 temperatures for a single thermocouple type. The Altek 222 introduced in 1987 had an LCD display which sourced and read a single thermocouple type in °F & °C. It was replaced by the Altek 222A in 1993. With four thermocouple types the Altek 322-1 came out in 1991 and the fourteen thermocouple types Altek 422 came out the following year.

Altek 22 Discontinued - Suggested replament PIE 520B or PIE 521B
Discontinued Altek 22

Recommended Replacement
PIE 520B
PIE 520B
Recommended Replacement
PIE 520B
PIE 521B
Recommended Replacement
PIE 521B
Altek 222A Discontinued - Suggested replacement PIE 322-1 or PIE 422
Discontinued
Altek 222 or 222A

Recommended Replacement
PIE 322-1
PIE 322-1
Recommended Replacement
PIE 322-1
PIE 422 Thermocouple Calibrator
Recommended Replacement
PIE 422
Altek 322-1 - Suggested replacement PIE 322-1
Discontinued Altek 322-1

Recommended Replacement
PIE 322-1
PIE 322-1
Recommended Replacement
PIE 322-1
Altek 422 - Suggested replacement PIE 422
Discontinued Altek 422

Recommended Replacement
PIE 422
PIE 422 Thermocouple Calibrator
Recommended Replacement
PIE 422

Altek RTD Calibrators

To match the thermocouple line the first Altek RTD  calibrator was the Altek Model 11 RTD Simulator which outputted 11 temperatures for a single RTD type. The Altek 111 introduced in 1997 had an LCD display which sourced and read a single RTD type in °F & °C.  With multiple RTD types the Altek 211 came out in 1990 and the more advanced Altek 311 came out in 1998 and was updated to the Altek 311A the following year.

Altek 11 Discontinued - Suggested replacement PIE 510B or PIE 511B
Discontinued Altek 11

Recommended Replacement
PIE 510B
PIE 510B RTD Source - Single RTD Type
Recommended Replacement
PIE 510B
PIE 511B
Recommended Replacement
PIE 511B
Altek 111 Discontinued - Suggested replacement PIE 211
Discontinued Altek 111

Recommended Replacement
PIE 211
PIE 211
Recommended Replacement
PIE 211
PIE 311
Recommended Replacement
PIE 311
Altek 211 - Suggested replacement PIE 211
Discontinued Altek 211

Recommended Replacement
PIE 211
PIE 211
Recommended Replacement
PIE 211
Altek 311A Discontinued - Suggested replacement PIE 311
Discontinued
Altek 311 or 311A

Recommended Replacement
PIE 311
PIE 311
Recommended Replacement
PIE 311

Altek Frequency Calibrators

The Altek 40A outputted 40 frequencies with both zero based and zero crossing square waves. The LCD Altek 241 was the first portable calibrator with counts-per-minute and counts-per-hour ranges and came out in 1986. The Altek 941 replaced it in 1994 and was updated to the Altek 942 in 1996 with the addition of a function to calibrate totalizers.

Altek 941/942 Discontinued - Suggested replacement PIE 541
Discontinued
Altek 941 or 942

Recommended Replacement
PIE 541
PIE 541
Recommended Replacement
PIE 541
Altek 241 Discontinued - Suggested replacement PIE 541
Discontinued Altek 241

Recommended Replacement
PIE 541
PIE 541
Recommended Replacement
PIE 541
Altek 40A Discontinued - Suggested replacement PIE 541
Discontinued
Altek 40 or 40A

Recommended Replacement
PIE 541
PIE 541
Recommended Replacement
PIE 541