Online Earth Resistance Detector 0.01Ω~2000Ω
Function:
-On-line Monitoring Of Earth Resistance, Earth Voltage
-Earth Resistance Measurement Range: 0.01Ω~2000Ω
-Earth Voltage Measurement Range: AC 0V~600V
-Communication Mode: RS485 communication
-Alarm Function: Setting alarm threshold
-Setting Monitoring Interval
Earth Resistance On-line Detector, also known as earth resistance remote on-line tester, contact type earth resistance on-line detector, which is used for remote monitoring the earth resistance and earth voltage on-line. The detector adopt with simple two-wire method or precision three-wire method to test earth resistance, and the average value rectifier method is used to test the earth voltage and monitor it on-line in real time. The detector with RS485 communication. Users can secondary development and set up network to realize remote multi-point online monitoring according to the provided MODBUS communication protocol. It is suitable for power facility grounding, highway equipment grounding, meteorological lightning protection grounding, communication base station grounding, railway facility grounding, construction warehouse grounding and electrical equipment grounding, etc.
Specification:
Measurement Function | Measuring Range | Accuracy | Resolution |
Earth Resistance | 0.01Ω~20Ω | ±2%rdg±3dgt (Auxiliary earth resistance 100Ω±5%, earth voltage <10V) |
0.01Ω |
0.1Ω~200Ω | 0.1Ω | ||
1Ω~2000Ω | 1Ω | ||
Earth Voltage | 0~600V AC | ±2%rdg±3dgt | 1V |
2. Technical Specification
Power Supply | Standard: 12V DC (± 1V DC), 400mA Max (External power supply) |
Data Display | 4-digit LCD display |
LCD Size | 128mm×75mm;Display area:124mm×67mm |
Measurement Mode | Precision three-wire measurement, simple two-wire measurement |
Measure | Earth resistance: rated current pole-change method, measuring current 11mA Max, 128Hz; Earth voltage: average rectification |
Earth Resistance Measurement Range | 0.01Ω~2000Ω |
Earth Voltage Measurement Range | AC 0V~600V |
Data Mode | Average value |
Measurement Indication | LCD countdown indication during measurement |
Measurement Time | Earth voltage: about 2 times/second; earth resistance: about 30 seconds/time |
Measurement Times | More than 10,000 times |
Cable Voltage | Measurement of earth voltage: measurement below AC 600V |
Detector Interface | Plug-in connection terminal : 9-pin terminal |
Communication Mode | RS485 communication |
Gear Shift | Automatic shift |
Memory | 99 groups, with a small number flashing and displaying the "99" symbol on screen to indicate that the storage is full |
Interval Time | Automatic monitoring interval setting range: 1~999 hours |
Data Access | Data access function: “MEM" symbol display |
Overflow Display | Over-range overflow function: “OL” symbol display |
Power Consumption | Standby: 25mA Max, measurement: 400mA Max |
Alarm Prompt | Sound and light alarm |
Alarm Setting | Detector panel button setting or Background software(developed) setting |
Alarm Threshold Setting Range | Resistance:0Ω~2000Ω |
Low Power Voltage Indication | When the power voltage is lower than 11V, the low power voltage symbol is displayed , remind to replace the power |
Detector Size | 190mm×117mm×54mm |
Weight | About 450g |
Overload Protection | During testing the earth resistance: AC 280V/3 seconds between the ports of E-P and E-C |
Insulation Resistance | Over 10MΩ(500V between the circuit and the housing) |
Withstand Voltage | AC 3700V/rms(Between the circuit and the housing) |
Electromagnetic Characteristic | IEC61000-4-3, Wireless frequency electromagnetic field≤1V/m |
Suitable Safety Standard | IEC61010-1, IEC1010-2-31, IEC61557-1,5, IEC60529(IP54), Pollution level 2, CAT Ⅲ 300V |
Working Temperature & Humidity | -10℃~40℃;Below 80%RH |
Storage Temperature & Humidity | -20℃~60℃;Below 70%RH |
General | |
Characteristic | On-line Monitoring Of Earth Resistance, Earth Voltage |
English Instruction | Available |
Range | Earth Resistance Measurement Range: 0.01Ω~2000Ω |
Original | Shenzhen |
Online Earth Resistance Detector 0.01Ω~2000Ω
- Brand: ROKTOOLS
- Product Code: EGRT-10304
- Availability: In Stock
-
$188.00
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