Amprobe GP-2 GeoTest Instruction Manual

Press SAVE to store the test results in memory (see paragraph 5.1). Example: You position the rods at a distance D of 3 feet and take 3 resistivity measurements: 7.7 7.7 Ω Ωm ρρ 7.1 7.1 Ω Ωm ρρ A A dd 7.1 7.1 Ω Ωm ρρ A A dd 1st meas. 2nd meas. 3rd meas. a) 1st measurement: you see the measured value but not the message “Add”. b) 2nd measurement: you see the message “Add”. This means that the second measurement is included in the calculation of the average; by pressing AVG you will get also the average value calculated. 7.4 7.4 Ω Ωm ρρ 002 ...

10. SERVICE 10.1. WARRANTY This instrument is guaranteed against any defects in material and manufacturing for one year, in compliance with the general sale terms and conditions. During the warranty period all defective parts may be replaced, but the manufacturer reserves the right to repair or replace the product. If the instrument is to be returned, its transport expenses must at the customer's expense. Shipping instructions may be obtained by contacting the factory. A Return Material Authorization (RMA) number must be obtained from the factory prior to return. A report ...

NOTE! Regardless on the unit of distance D, which is set up (either ft or m) the resistivity will be automatically calculated in OhmMeters! WARNING: When the message “Measuring” appears on the display, the instrument is measuring. Do not disconnect the alligator clips during the measurement. NOTE! If you keep pressing GO, the instrument takes more measurements consecutively. When a new value is acquired, the symbol Ωm blinks on the main display, the instrument emits a short sound and, if the measured value is inserted in the calculation of the average resistivity ...

F νν - - - - - - PP cc In case both the amperometric circuit and the voltmetric circuit are interrupted, when pressing GO the instrument will not read the minimum current nor the minimum voltage, therefore a screen similar to the one beside appears. Make sure that the terminals are connected correctly and that the amperometric and voltmetric rods (blue and red conductors) have not been driven into a gravely or scarcely conductive ground. If necessary, pour water around the rod. THIS RESULT CANNOT BE SAVED. F νν> >1999 1999 Ω Ω - - - - - - - - - ...

A report should accompany the returned product, stating the reason(s) for return. The unit should be packed in its original carton or equivalent; any damage that may be due to non-original packing shall be charged to the customer. The manufacturer disclaims any responsibility for damages caused to people and/or objects. ...

2. GENERAL DESCRIPTION Thank you for purchasing a quality AMPROBE Test Instrument. This instrument will provide you with accurate and reliable measurements provided that it is used according to this manual’s instructions The GP-2 GeoTest is able to measure: F EARTH 2 WIRES: 2 wires earth resistance F EARTH 3 WIRES: 3 wires earth resistance F ρρ: 4 wires earth resistivity The GP-2 GeoTest uses the "Fall of potential" method of measurement for all of the above tests. ...

secondary display on the left-hand side = 003 (no. of measurements = 3 means that 3 earth measurements have been taken consecutively) secondary display on the right-hand side = average of the measurements taken ((Val1+Val2)/no. of measurements = (0.90+0.96+0.93)/3 = 0.93Ω) NOTE! A test with a result over 700Ω is not inserted in the calculation of average value. Example: 1st measurement Main display: 1,07Ω Secondary display on the left-hand side: 1 Secondary display on the right-hand side: 1,07Ω 2nd measurement Main display: 4,15Ω Secondary display on the left-han ...