Altek 422 is capable of calibrating most transmitters, recorders, controllers, alarms, indicators, data acquisition and computer systems. The 422 is capable of simulating 14 common thermocouple types or DC milli-volts.
Specifications
General Specifications - Altek 422
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 Low battery: “BAT” indication on LCD at 7 Volts nominal, approximately 10 hours left. 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 dBReference 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) Carrying case: Included, zippered with belt loop and shoulder strap 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 Normal mode rejection: 50/60 Hz, 50 dB Common mode rejection: 50/60 Hz, 120 dB
The store will not work correctly when cookies are disabled.
We use cookies to make your experience better.To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies.Learn more.