Perform earth resistance measurements of electrical pylons. The influence of adjacent pylons is minimized by a Guard cable connection.
Design Features:
Fast, safe, and reliable testing
Built-in memory, printer and rechargeable battery
Bluetooth interface for remote control via a tablet
Operation frequency 25 kHz
Resistance reading up to 300 Ω
Automatic compensation of inductive component
Automatic current injection
System Overview:
The ER25K is based on the use of a high frequency measurement current (25 kHz), for which ground wire inductive impedance –taking into account a typical length span is reasonably high, making it possible to reduce the effect of the adjacent towers under measurement.
The ER25K measures only the ground resistance of the surveyed tower, including its base.
It is the appropriate tool for fast, safe, and reliable grounding resistance measurement in each tower of a working line transmission, without disconnecting the ground wire.
The current injected by the earth meter is automatically adjusted to the predetermined value and the equipment and it directly indicates the resistance value on its ohms-grades scale.
Bluetooth interface and software gives you the capability to save photos of the towers and their GPS coordinates, plus record voice comments for each measurement.
Measurement Ranges: 0 – 300 Ω
Operation Frequency: 25,000 Hz
Test Current: 20 mA Automatic
Inductive Component Compensation:
Through a bank of capacitors integrated into the equipment
Maximum capacity 4.2 μF, Resolution 10 nF
Measurement Accuracy: ±2.5% of reading ±1 digit
Display: Alphanumeric Display (LCD)
Max Earth Resistance of Auxilliary Rods: 2000 Ω (Current Rod), 2000 Ω (Voltage Rod)
Built-In Memory: Up To 2000 Test Readings
Data Output: USB and Bluetooth Interfaces. Built-In Printer.
Software: Software for remote control via a tablet. Compatible with Android 4.0 Ice Cream Sandwich (API 14) or higher.
Power Supply: Internal rechargeable battery, 12.6 V, 6000 mAh
Battery Charger:12 V - 2A (AC adapter)
Please feel free to contact for detailed specifications, accessories, software and options.