Pantech instruments manufactures manual loaders, model 882. Pantech instruments is the manufacturer and exporters of process control instruments. The manual loaders are source of standard ma / v signals. The instrument generates a 0-20 or 4-20 ma signal output 0-10 v dc signal output in its standard range. The user is allowed to vary this output signal with the help of front fascia knob or up/down keys. A simultaneous indication in the manual loaders is to the extent of 3.5 digit / 4 digit of instantaneous display is also provided which duly corresponds to the output signal. Model 882 allows the user to have display to the extent of 3.5 digit with a predefined type display range. Manual loaders is also available in 882u and allows the user to configure display to the extent of 4 digit by front keys.