Ludlum Model 500 Pulse Generator

Ludlum Model 500 Pulser

The Ludlum Model 500 Pulse Generator provides the functions necessary for use in calibrating Ludlum radiation detection instruments as well as many other scaler/ratemeter instruments from other manufacturers. The adjustable output pulse rate is displayed on a three-digit LED readout. Potentiometers (both coarse and fine controls) and a multiplier switch provide rates from 1 to 9.9 x 106 counts per minute (cpm). Pulse amplitude is controlled by a multiplier switch and a LO/HI potentiometer, while pulse polarity is chosen by a selector switch. Amplitude may be varied between 0 and a negative or positive 5 V, displayed on an analog meter. The high voltage of the instrument under test is displayed on an analog meter with markings of 0 to 2.5 kV.

Indicated Use Pulse calibration of radiation detection scalers/meters
High Voltage

Pulse Rate

Pulse Amplitude

Pulse Polarity

Pulse Output Standard “C” type connector, a “C” type cable is supplied with the instrument
Power 95 to 135 Vac (178 to 240 Vdc available), 50-60 Hz front panel on/off switch with accompanying red LED indicator
Size (H x W x L) 21.6 x 29.2 x 24.1 cm (8.5 x 11.5 x 9.5 in.)
Weight 4.1 kg (9 lb)