Caltech India is the leading manufacturer and supplier of CES 850 Soil Resistivity Meter / Earth Resistivity Meter with best functions meeting every requirement of meter with an advanced function and variety of measurement methods include determine most practical soil survey procedure and it is best equipment for soil resistance measurement. Best in Industry for corrosion experts including pipeline industry.
This high-quality instrument is most recommended for using the specific resistivity, which is measured by using a normal 2 pin as per ASTM G187, AASHTO T288, 3 pin – Fall of Potential and also 4 pin – Earth resistance meter in accordance with Wenner´s 4 – electrode method in accordance with ASTM G57.
It helps to determine corrosivity using soil resistivity. Soil Resistivity is the primary factor for determining how corrosive the soil is? Lower resistivity indicates a higher concentration of moisture, salts, and chemicals, which allows for easier electrical current flow and, therefore, a higher potential for corrosion. The resistivity data is useful for the specifications of a CP system
The soil box can be used for the measurement of specific resistivity of electrolytes ie. soil sample, water and conducting fluids as well.
Widely used in telecommunications, electric power, meteorology, computer room, oil field, power distribution line, tower transmission line, gas station, factory grounding grid, lightning rod, etc. The instrument has the characteristics of accurate, fast, simple, stable and reliable test.
This soil resistivity meter also helps to 500 groups of data are stored at the same time, and the mobile phone APP is connected through Bluetooth, or the PC is connected through USB to realize wireless or wired remote measurement, reading historical data, exporting report analysis and other functions. It has unique functions such as numerical retention and intelligent alarm prompt。
For using Multi-function Earth resistance tester, It consists of host computer, upper computer software, mobile phone APP software, test cable, USB cable, charger and ground pin.
We also supply Soil Resistivity Tester boxes confirming to ASTM G57, G187 & AASHTO T288 specifications.
Ordering Information:
| CES 850 – Soil Resistivity Meter | |||
| Two, Three And Four Wire Method Earth Resistance | 0.00Ω～0.2 MΩ | Precision: ±1.5% | Resolution: 0.01Ω |
| Soil Resistivity | 0.00Ωm～10.00 MΩm | Precision: ρ=2πaR | Resolution: 0.01Ωm |
| Voltage To Earth | 0.000V～750.0V | Precision: ±1.5% rgd | Resolution: 0.001V |
| DC Voltage | 0.000V～1000V | Precision: ±1.5% rdg | Resolution: 0.001V |
| Features | Two, three and four wire measurement of grounding resistance, Soil Resistivity, Ground Voltage Measurement | ||
| Ambient Environment | 23℃±5℃，below 75%rh | ||
| Interference Voltage | ＜20V（should be avoided） | ||
| Interference Current | ＜2A（should be avoided） | ||
| Measure the Electrode Spacing (R) | a＞5d | ||
| Measure the Electrode Spacing (ρ) | a＞20h | ||
| Power Supply | 11.1V Lithium battery (built-in) can be measured continuously for more than 1000 times in AC resistance mode when fully charged | ||
| Backlight | Controllable backlight, suitable for use in dim places | ||
| Measurement Method | Precision four wire, three wire method measurement, simple two wire measurement ground resistance | ||
| Measuring Method | Two, three and four wire method measurement: pole change method, measuring current 42.0mA Max Soil resistivity: quadrupole method Ground voltage: Average rectified (between S-ES interface) Dc voltage: Average rectified (between S-ES interface) | ||
| Test Voltage Waveform | Sine wave | ||
| Test Frequency | 128Hz | ||
| Test The Voltage Of The Circuit | AC 30.0V Max | ||
| Electrode Spacing Range | 0.1m～100.0m | ||
| Display Mode | Large size HD segment LCD screen | ||
| Instrument Size | length, width and height：277.2mm×227.5mm×153mm | ||
| Test Leads | 4pcs: 15m red, 15m black, 10m yellow and 10m green each one pcs | ||
| Simple Test Leads | 2pcs: 1.5m red and 1.5m green each | ||
| Auxiliary Grounding Rod | 4 roots: φ10mm x 200mm | ||
| Test Time | Ground voltage: about 3 times per second Ground resistance, soil resistivity: about 10 seconds/time | ||
| USB Interface | It has a USB interface, and the stored data can be uploaded to the computer through software | ||
| Bluetooth Connection | Yes, it can be used for real-time monitoring of mobile phones and data reading | ||
| USB Cable | One USB communication cable, 1.5m long | ||
| Data Storage | 500 groups, “MEM” storage indicates that the symbol “FULL” indicates that the storage is full | ||
| Data Lookup | The “MR” symbol indicates when data is read | ||
| Overflow Is Displayed | The “OL” symbol indicates when the overflow exceeds the range | ||
| Auxiliary Grounding Test | It has the function of auxiliary grounding resistance value test, 0.00Ω~200.0kΩ | ||
| Alarm Function | An alarm is issued when the measured value exceeds the alarm set value | ||
| Auto Shut Off | The “APO” indicates that the device will automatically shut down after 15 minutes (default) of operation | ||
| Power Dissipation | Standby: 80mA Max (backlight off) 90mA Max (backlight on) Measure: 120mA Max (backlight off) 130mA Max (backlight on) | ||
| Quality | Instrument: 1880g (including battery) Test leads: 1300g (including simple test line) Auxiliary grounding rod: 850g (4 pieces) | ||
| Working Environment | -10℃~40℃; below 80%rh | ||
| Store Temperature And Humidity | -20℃~60℃; below 70%rh | ||
| Overload Protection | Measure the grounding resistance: AC 280V/3 seconds between ports H-E and S-ES | ||
| Insulation Resistance | Above 20MΩ (500V between circuit and housing) | ||
| Withstand Voltage | AC 3700V/rms(Between the circuit and the shell) | ||
| Electromagnetic Properties | IEC61326(EMC) | ||
| Suitable For Safety Regulations | IEC61010-1(CAT Ⅲ 300V、CAT IV 150V、pollution level 2)； IEC61010-031； IEC61557-1 (ground resistance)； IEC61557-5 (soil resistivity)； | ||
In India, we have various customers from Mumbai, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Bhopal, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Madurai, Nashik, Srinagar, Aurangabad, Dhanbad, Allahabad and Ranchi in India.
