LUDLUM MODEL 3 User Manual

Model 3 Technical Manual Section 10
Ludlum Measurements, Inc. Page 10-3 April 2016
Reference Description Part Number
R15 200K, 1/8W, 1% 12-7992
R16 10K, 1/8W, 1% 12-7839
R17 1K, 1/8W, 1% 12-7832
R18 4.75K, 1/8W, 1% 12-7858
R19 2K, 1/8W, 1% 12-7926
R20-R21 100K, 1/8W, 1% 12-7834
R22 1M, 1/8W, 1% 12-7844
R23 2.49K, 1/8W, 1% 12-7999
R24 14.7K, 1/8W, 1% 12-7068
R25 200K, 1/4W, 1% 12-7992
R26 100K, 1/4W, 1% 12-7834
R27 68.1K, 1/8W, 1% 12-7881
R28 100K, 1/8W, 1% 12-7834
R29 1K, 1/8W, 1% 12-7832
R30 100K, 1/8W, 1% 12-7834
R31 475K, 1/8W, 1% 12-7859
R32 100K, 1/8W, 1% 12-7834
R37 100K, 1/8W, 1% 12-7834
R38 2.2M, 1/8W, 1% 12-7002
R39 500M, 3KV, 2% 12-7031
R40 402K, 1/8W, 1% 12-7888
R44 1K, 1/4W, 1% 12-7832
P1 640456-5 - MTA100 13-8057
P2 640456-6 - MTA100
(installed as required) 13-8095
P3 640456-2 - MTA100 13-8073
L1 22 µH 21-9808
T1 31032R 21-9925
J1 MTA100×5, MAIN
BOARD 5464-204 13-8140
J2 OPTIONAL (M3 overload)
MTA100×6, 5464-204 13-8171
J3 MTA100×2, MAIN
BOARD 5464-204 13-8178
CONNECTORS
INDUCTOR
TRANSFORMER
Wiring Diagram,
Drawing 464 × 212
CONNECTORS

LUDLUM MODEL 3 Specifications

General

Detector Compatibility	scintillation detectors
Power Source	Two D-cell batteries
Display	Analog meter
Audio	Built-in speaker
Operating Temperature	-20°C to 50°C (-4°F to 122°F)
Energy Range	Depends on detector
Accuracy	±10%