• Veeral Controls

Process/temperature instrument

Viral Controls P Ltd has introduced process/temperature instrument for checking calibrations. The instrument is capable of handling the widest operating voltage: 70-300V, 40-400Hz AC; 100-420V DC. All the input terminals (T/C, RTD, mA, V, Excitation 24V) are fault protected indefinitely up to 250V AC/DC. Four-digit linearisation and relative accuracy of 0.03 percent can be achieved with this instrument. The sub-surface die heated Zener reference (20PPM/1Khr) and 10PPM/degree C gain resistors of the device provide unmatched stability with time and temperature. The reference and gain resistors are pre-stabilised by 168 hour burn-in. The instrument exhibits stable readings with superimposed AC (NMRR typical 120dB) and spikes.