4
Digital Ground Resistance Tester Model 3640 and 4610
1.2 Definition of Measurement Categories
CAT I: Formeasurementsoncircuits not directlyconnected to theAC
supply wall outlet such as protected secondaries, signal level,
andlimitedenergycircuits.
CAT II: For measurements performed on circuits directly connected to
the electricaldistribution system. Examplesare measurements
onhouseholdappliancesorportabletools.
CAT III: For measurements performed in the building installation at
the distribution level such as on hardwired equipment in xed
installationandcircuitbreakers.
CAT IV: For measurements performed at the primary electrical supply
(<1000V) such as on primary overcurrent protection devices,
ripplecontrolunits,ormeters.
1.3 Receiving Your Shipment
Uponreceivingyourshipment,makesurethatthecontentsareconsistent
with the packing list. Notify your distributor of any missing items. If the
equipmentappearstobedamaged,leaclaimimmediatelywiththecar-
rierandnotifyyourdistributoratonce,givingadetaileddescriptionofany
damage.Savethedamagedpackingcontainertosubstantiateyourclaim.
1.4 Ordering Information
Ground Resistance Tester Model 3640 ............................ Cat. #2114.92
Includes soft carrying case, batteries and a user manual.
Ground Resistance Tester Model 3640 Kit (150 ft) ......... Cat. #2135.13
Includes ground tester, two 150 ft color-coded leads on spools (red/blue), one 30 ft lead
(green), two T-shaped auxiliary ground electrodes, set of 5 spaded lugs, one 100 ft AEMC
®
tape measure, batteries, carrying bag, user manual and warranty card.
Ground Resistance Tester Model 3640 Kit (300 ft) ......... Cat. #2135.14
Includes ground tester, two 300 ft color-coded leads on spools (red/blue), two 100 ft color-
coded leads (hand-tied, green/black), four T-shaped auxiliary ground electrodes, set of 5
spaded lugs, one 100 ft AEMC
®
tape measure, batteries, carrying bag, user manual and
warranty card.
Ground Resistance Tester Model 3640 Kit (500 ft) ......... Cat. #2135.15
Includes ground tester, two 500 ft color-coded leads on spools (red/blue), two 100 ft color-
coded leads (hand-tied, green/black), one 30 ft lead (green), four T-shaped auxiliary ground
electrodes, set of 5 spaded lugs, one 100 ft AEMC
®
tape measure, batteries, carrying bag,
user manual and warranty card.
Ground Resistance Tester Model 4610 ............................ Cat. #2114.94
Includes soft carrying case, batteries and a user manual.