B&K Precision 309 - Datasheet - Manual

B&K Precision Corporation
22820 Savi Ranch Parkway, Yorba Linda, CA 92887
Tel: 714-921-9095, Fax: 714-921-6422
www.bkprecision.com
Specifications subject to change without notice
Data Sheet
Model 309
Digital Earth Resistance Meter
Digital Earth Resistance Meter
Model 309
The model 309 Digital Earth Resistance Meter is a small, compact,
battery powered, professional meter. This easy-to-use meter is invaluable
to electricians and contractors who need to ensure the "ground" quality
and effectiveness of buildings, structures, equipment or electrical sys-
tems. A good earth ground is required for new buildings or structures
needing to pass required electrical codes. Older buildings can lose a
good, effective earth ground connection over time. This can happen
after a building or structure has been struck by lightning.
Features
■ Measure Earth Resistance (20/200/2000Ω ranges)
■ Measures Earth AC Voltage to 200VAC (40 to 500Hz)
■ Timed function test turns output off after a 3 to 5
minutes continuous test
■ 2mA Measuring current measures resistance without
tripping circuit breakers
■ Data Hold
■ Small Light Weight
■ Auto Power Off
■ IEC 1010 CAT III 200V / CE
■ Included: Test Leads, Auxiliary Earth Spikes, Carrying
Case and Batteries