1V to 5KV, 10µA to 10A 5Ω to 100MΩ antiquated
(description below copied directly from manual July 1959) ACCURACY Your 630-PL is accurate to within 3% of full scale reading on all DC ranges except the 5000 volt range which is within 5%, 4% on all AC ranges except 5000 volts which is 5%, and 3% of the scale length on all resistance ranges. Precision, non-aging resistors insure lasting accuracy. All units are calibrated at 77°F. AC ranges are calibrated on a 60 cycle sine wave. In choosing ranges always endeavor to have the readings fall in the upper (or right hand) half of the scale for greatest accuracy. RANGES The following ranges are self contained in your 630-PL: DC Volts 2.5-10-50-250-1000-5000 at 20,000 Ohms per Volt. AC Volts 0-3-10-50-250-1000-5000 at 5,000 Ohms per Volt. DC Microaxnperes 0-100 at 250 Mv. DC Milliamperes 0-10-100-1000 ot 250 Mv. DC Amperes 0-10 at 250 Mv. Ohms 0-1000-10,000 (4.4-44 at center scale). Megohms 0-1-100. . (4400-440,000 at center scale). Output Volts(AC) 0-3-10-50-250-1000 at 5,000 Ohms per Volt. Decibels -20 to +11, 21, 35, 49, 61, 75 on 600 Ohm line. Your 630-PL is well constructed but like any instrument should be handled carefully. You will also want to keep the panel clean as cleanliness and carefulness go hand in hand.