Fluke 1623-2 and 1625-2 GEO Earth Ground Testers Technical Data The new Fluke 1623-2 and 1625-2 GEO Earth Ground Testers offer data storage and download capabilities via USB port. World class accessories will simplify and speed up testing time. Product features: 3- and 4-pole Fall of Potential, earth resistance loop testing 4-pole Soil Resistivity testing Selective earth ground rod testing using 1 clamp Stakeless earth ground rod testing using 2 clamps IP56 rated for outdoor use rod and each are connected to the The most complete testers Professional carrying case tester. No earth ground stakes are The Fluke 1623-2 and 1625-2 USB data storage and transfer used at all. A known, fixed voltage are distinctive earth ground is induced by one clamp and the testers that can perform all In addition, the Fluke 1625-2 current is measured using the four types of earth ground offers these advanced features: second clamp. Then the tester measurement: automatically determines the Automatic Frequency Control 3- and 4-Pole Fall of Potential resistance of the earth ground rod. (AFC) - identifies existing (using stakes) This test method only works interference and chooses if a bonded earth ground system 4-Pole Soil Resistivity testing a measurement frequency exists for the building or structure (using stakes) to minimize its effect, under test, but most are. If there Selective testing (using 1 clamp providing more accurate is only one path to ground, like at and stakes) earth ground value many residential applications, the Stakeless testing (using 2 Stakeless method will not provide R* measurement - calculates clamps only) an acceptable value and the Fall earth ground impedance at The testers are also easy to of Potential test method must 55 Hz to more accurately use. For each test, be used. reflect the earth ground the testers inform you which With Stakeless testing, the stakes or clamps need to be resistance that a fault-to- earth ground rod does not need connected and the large rotary to be disconnectedleaving the earth ground would see switch can be used even with a bonded earth ground system Adjustable limits - for gloved hand. intact during test. Gone are the quicker testing The complete model kit comes days of spending time placing with the 1623-2 or 1625-2 and connecting stakes for each Stakeless testing tester, test leads, 4 earth ground earth ground rod on your system stakes, 3 cable reels with wire, The Fluke 1623-2 and 1625-2 a major time saver. You can also 2 clamps, batteries, and manual earth ground testers are able to perform earth ground tests in all inside a professional Fluke measure earth ground loop resis- places youve not considered carrying case. tances using only clamps. With before: inside buildings, power this test method, two clamps are pylons, or anywhere you dont placed around the earth ground have access to soil.1623-2 Specifications General Display:1999 digit LCD Display with special symbols, digit height 25 mm User interface Instant measurement through TURN and START one button concept. The only operating elements are rotary switch and START button Robust, water and dust resistant Instrument is designed for tough environmental conditions (rubber protective cover, IP56) Memory Internal memory storage up to 1500 records accessible via USB port Temperature ranges Operating temperature -10 C to 50 C (14 F to 122 F) Storage temperature -30 C to +60 C (-22 F to +140 F) Temperature coefficient 0.1 % of reading/C <18 C >28 C Intrinsic error Refers to the reference temperature range and is guaranteed for 1 year Operating error Refers to the operating temperature range and is guaranteed for 1 year Climatic class C1 (IEC 654-1), -5 C to +45 C (23 to +115 F), 5 % to 95 % RH Protective type IP56 for case, IP40 for battery door according to EN60529 Safety Protection by double and/or reinforced insulation. max. 50 V to earth. IEC61010-1: 300V CAT II, Pollution degree 2 EMC (Emission Immunity) IEC61326-1: Portable Quality system Developed, designed and manufactured according to DIN ISO 9001 External voltage V ext, max = 24 V (dc, ac < 400 Hz), measurement inhibited for higher values 2 V ext rejection > 120 dB (16 3, 50, 60, 400 Hz) Measuring time Typical 6 sec. Max. overload 250 V rms (pertains to misuse) Auxiliary power 6 x 1.5 V alkaline (type AA LR6) Battery life span Typical > 3,000 measurements Dimensions (WxHxD) 250 mm x 133 mm x 187 mm (9.75 in x 5.25 in x 7.35 in) Weight 1.1 kg (2.43 lb) including batteries 7.6 kg (16.8 lb) including accessories and batteries in carrying case RA 3-pole ground resistance measurement (IEC 1557-5) Switch position Resolution Measuring range Accuracy Operating error R 3-pole 0.001 to 10 0.020 to 19.99 k (2 % rdg + 3 d) (5 % rdg + 3 d) A For 2-pole measurements connect terminals H and S with the supplied connector cable. 2 Fluke Corporation 1623-2 and 1625-2 GEO Earth Ground Testers