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Summary of Contents for Humboldt Soil Box
- Page 1 06.09 H-4386, H-4386SM Soil Box...
- Page 2 this is a blank page corrector...
- Page 3 5.) Four insulated test leads. Procedure: Pour or tamp material to be tested into soil box until flush with top of box. Where soil or similar material is to be tested, the two brass potential pins should be temporarily removed to facilitate filling the box. Material should be tamped down until compacted to same degree as soil at test site.
- Page 4 Soil Box Attach the "c" binding posts to the end term inals of the box and the “P” binding posts to the adjacent center terminals. (see fig. 1) fig. 1 Balance and read in the usual way. Apply the correct multiplying factor, if any, for the box you are using.
- Page 5 3-Pin Method The three-pin method can be used to measure the resistance to earth of a ground rod, ground bed, anode, etc. For this method, connect the “C1” and “P1” binding posts to the object being measured using separate leads, (See fig. 3), Connect “C2” to a pin driven into the soil far enough away from the object under test so as not to influence the reading.
- Page 6 Potential must be in volts, current must be in amperes to obtain result in ohm-cm. Multiplication factor for the H-4386 soil box is 1. When used with the H-4385A Soil Resistance Meter, no calculations are necessary because the multiplication factor is 1 ohm-cm. Therefore, the resistivity value of the sample can be read directly off the meter dial.
- Page 8 Warranty Humboldt Mfg. Co. warrants its products to be free from defects in material or workmanship. The exclusive remedy for this warranty is Humboldt Mfg. Co., factory replacement of any part or parts of such product, for the warranty of this product please refer to Humboldt Mfg.
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