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Altek 322-1 display gives you fast, accurate temperature measurement with 0.1 and 1 degree or with 0.001 millivolt resolution. The 322 allows the calibration of type J, K, T and E thermocouples.
Specifications - Altek 322-1
Accuracy: ±(0.008% of Reading + 0.006 mV)
Cold junction compensation: Built-in for specified thermocouple type, characterized to T/C curve
Cold junction temperature effect: Within 0.05° per °C change in
ambient temperature over operating range
Operating temperature range: -5 to +140°F (-20 to +60°C)
Storage temperature range: -22 to + 175°F (-30 to +80°C)
Relative humidity: 10 to 90%, non-condensing
Zero stability: Included in cold junction effect
Warm up time: 1 minute to full rated accuracy
Overload protection: 120 volts AC/DC for 30 seconds on connecting leads, in any mode
Battery life: 9 Volt Alkaline: Nominal 40 hours
Reference drift: <10 PPM/°C
Overall size: 2 1/2 x 2 5/8 x 5 1/8 inches (63.5 x 66.7 x 130 mm)
Weight: 10.9 oz. (0.31kg)
Thermocouple simulator (source)
Output impedance: <0.1 ohms
Source current: up to 8 mA (drives 80mV into 10 ohms)
Output noise: <4 microvolts p-p for frequencies of 10 Hz or below
Overload: Indicates OVER and blanks digits on the display
Read a thermocouple
Input impedance: >10 Megohms
Open thermocouple detection: 450 millisecond check pulse. Nominal threshold, 10 K ohms. Displays “ – – – –” for open circuit
Normal mode rejection: 50/60 Hz, 50 dB
Common mode rejection: 50/60 Hz, 120 dB
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