Altek 422

Overview of the Altek Model 422 Universal Thermocouple Calibrator

The Altek Model 422 Universal Thermocouple Calibrator is a versatile and reliable tool designed for simulating and reading thermocouple signals. It is suitable for calibrating and troubleshooting thermocouple instruments in a variety of industrial environments. Known for its accuracy, durability, and ease of use, the Altek 422 is an essential device for technicians and engineers who require precise temperature calibration.

Features of the Altek Model 422

  • Wide Thermocouple Compatibility
  • Simulates and reads eight common thermocouple types: J, K, T, E, R, S, B, N, G, C, D, P, L, U & mV.
  • Provides temperature simulation and measurement in °C or °F.
  • High Accuracy and Stability
  • High accuracy ensures reliable and precise measurements.
  • Stable output for consistent performance over time.
  • User-Friendly Interface
  • Large, easy-to-read LCD display.
  • Simple operation with user-friendly controls.
  • Advanced Functions
  • Cold Junction Compensation: Ensures accurate readings by compensating for the temperature at the connection point.
  • Min/Max Recording: Captures the minimum and maximum values for monitoring temperature fluctuations.
  • Hold Function: Freezes the current reading on the display for easy viewing.
  • Durability and Reliability
  • Rugged, portable design for field use.
  • Long battery life for extended operation.

Specifications of the Altek Model 422 Universal Thermocouple Calibrator

Specification CategoryDetails
Thermocouple Types Supported
Thermocouple TypesJ, K, T, E, R, S, B, N
Temperature Ranges
J Type Range-200°C to 760°C (-328°F to 1400°F)
K Type Range-200°C to 1372°C (-328°F to 2501°F)
T Type Range-200°C to 400°C (-328°F to 752°F)
E Type Range-200°C to 1000°C (-328°F to 1832°F)
R Type Range0°C to 1768°C (32°F to 3214°F)
S Type Range0°C to 1768°C (32°F to 3214°F)
B Type Range600°C to 1820°C (1112°F to 3308°F)
N Type Range-200°C to 1300°C (-328°F to 2372°F)
Accuracy±(0.008% of Reading+0.006 mV)
Accuracy±0.4°C for J, K, T, E types; ±0.5°C for R, S, B, N types
Display TypeDigital LCD
Display Digits4 digits
Special Features
Cold Junction CompensationYes
Min/Max RecordingYes
Hold FunctionYes
Battery Type9V battery
Battery LifeApproximately 50 hours
Environmental Specifications
Operating Temperature-10°C to 50°C (14°F to 122°F)
Storage Temperature-20°C to 70°C (-4°F to 158°F)
Humidity0% to 90% (0°C to 35°C); 0% to 70% (35°C to 50°C)
Physical Specifications
Dimensions152 x 80 x 40 mm (6 x 3.1 x 1.6 inches)
Weight0.34 kg (12 oz)
Safety and Compliance
ComplianceCE, CSA, UL
Altek Model 422 Universal Thermocouple Calibrator’s specifications

NOTE: High performance test equipment may be worthy of repair and calibration even though it has been labeled obsolete and is discontinued.

Main Menu