Farwest Corrosion Control Company
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- Model 400 - 4-Pin Soil Resistance Meter
Model 400 -4-Pin Soil Resistance Meter
Wide Range - High Sensitivity - Latest in Integrated Circuit Technology No Moving Parts - No Vibrators to Change - All Solid State Thoroughly Field Tested - Less than 8 Pounds.
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- Wide Range. From .01 ohm to 1.1 megohm in 8 ranges, with 10% overlap on all ranges.
- Excellent Sensitivity. Two position operating switch for high and low balance sensitivity.
- Excellent for soil box measurements in the field. Measures water samples from the range of distilled water to sea water.
- Large 100-division dial. Large dial for easy readability. Single dial balancing.
- Rugged Taut Band Null Indicator. Excellent damping arm response time. Cannot be harmed by extreme unbalance.
- Highly Accurate
- Fully temperature stabilized. Accuracy maintained over temperature ranges encountered under all field conditions.
- Insensitive to AC or DC Ground Currents. Operates on 97 Hz for maximum power line rejection.
- Rugged, Light Weight, Weatherproof Case. Can be safely used on wet ground. Comes equipped with adjustable snap-on carrying strap. Cover is removable.
- Can Be Used With 4-, 3- or 2-pin Methods.
- Lightweight and Compact. Weighs only 7 1/2 lbs. Measures 9" long x 6" wide x 6" high.
- Null indicator panel meter (top middle) uses rugged taut band. Cannot be damaged by extreme unbalance. Fast-critical damped action. Good sensitivity on all ranges. Scale shows if "off balance" reading is high or low.
- Large balance dial (bottom middle) provides 100 divisions and 10% overlap between ranges. No need to ever balance below "1" down to 0.01 ohm. White area with black division lines around main control dial enhances readability.
- Range switch (lower right) provides 8 ranges, from 0.01 to 100 K. Total resistance can range from 0.01 ohm to 1.1 megohm.
- Operating key (lower left) provides positive action. In low position, null pointer will not go off scale, so approach to balance can be seen.
- 5-way binding posts (upper right) are used for all measurements. "P" pins are red.
- Low battery warning lamp (upper left) indicates if battery needs replacing or recharging.
- Rugged aluminum case. Four panel screws can easily be removed to provide access to change 12 Volt lantern battery. Weatherproof panel. Watertight case bottom. Removable cover. "D" rings and adjustable strap for carrying lower part - or as a neck strap. Instrument weight is less than 8 lbs.
