Earth Resistance Online Detector Ground Voltage Tester 0.01-2000Ω Alarm Function

Description

Earth Resistance Online Detector Ground Voltage Tester 0.01-2000Ω Alarm Function
Earth Resistance Online Detector is high-tech product that our company has devoted to "grounding resistance detection technology research" for more than ten years, Using precision 3-wire or simple 2-wire measurement method to test the grounding resistance. Adopt average value rectification method to test grounding voltage, online detection, real-time monitoring. User can select RS232 or RS485 communication, according the protocol MODBUS to secondary development, build network, realize remote multipoint online monitoring etc.
Earth Resistance Online Detector displayed by super large LCD, very clear and obvious. The alarm critical value can be set via the button, and with the sound and light alarm indication. Ensure the high accuracy, high stability and high reliability of real-time online monitoring of grounding resistance value in various place.
Earth Resistance Online Detector Tester suitable for transmission line tower grounding, underground mine equipment grounding , weather lightning protection grounding, petrochemical grounding ,communication base station grounding, power substation grounding , railway grounding , building warehouse grounding , electrical equipment grounding, etc.
Product Features
1. Using precision 3-wire or simple 2-wire measurement method to test the grounding resistance. Adopt average value rectification method to test grounding voltage, online detection, real-time monitoring.
2. User can select RS485 or GPRS communication, according the protocol MODBUS to secondary development, build network, realize remote multipoint online monitoring etc.
3. With LCD screen, can observe the grounding resistance value at any time. Audible and visible alarm, setting the alarm thresholds. Setting the automatic monitoring record interval time
4. Tester equip with guide rail structure,  convenient to installation.
Product Main Function
Online monitoring of grounding resistance, grounding voltage, equipotential bonding resistance, and low value resistance
Ground resistance
：
0.01Ω
～
2000Ω
Communication method
：
RS485 or RPRS
Monitoring Interval Time
：
Setting range of automatic monitoring interval time :1-999 h
Measurement rate
：
over 10000 times
LCD Size
：
128mm×75mm
Specification:
Model
ETCR2900B Earth Resistance Online Detector
Ground Resistance
Range
Accuracy
Resolution
0.01Ω
～
20Ω
±2%rdg±3dgt  (auxiliary ground resistance100Ω±5%
，
voltage to ground
＜
10V)
0.01Ω
0.1Ω
～
200Ω
0.1Ω
1Ω
～
2000Ω
1Ω
Ground Voltage
0
～
600V AC
±2%rdg±3dgt
1V
Measure Mode
Precise 3-wire measurement ,simple 2-wire measurement
Measure Method
Ground resistance
：
rated current change-pole method
，
measured current11mA Max
，
128Hz
；
voltage to ground
：
average value ectification method.
Power Supply
Standard
：
12V±1VDC
、
400mA Max
（
provided externally
）
Weight
Detector:380g
Dimension
130mm×90mm×54mm
LCD Size
47mm×28.5mm
Measurement Time
Voltage to ground
：
about 2 times/second ; ground resistance : about 30 seconds/time
Measurement Rate
Over 10000  times
Monitoring
Interval  Time
Setting range of automatic monitoring interval time :1-999 h
Instrument Interface
Pluggable  terminal blocks: 9 pin connector
Communication  Method
RS485 orRPRS
Data Storage
99 groups
，
flash display “99”  symbol indicate storage is full
Data Access
Data read function :“READ” symbol display
Overflow Display
Exceed measurement range overflow function :”OL” symbol display
Alarm
Audible and visible alarm
Power Supply Voltage
When power supply voltage decreases to about 10V , power supply low symbol will display, and remind to replace  the power.
Overload Protection
Measurement ground resistance: E-P, E-C between each interfaces AC 280V/3 seconds
Electromagnetism
IEC61010-4-3,Wireless frequency electromagnetic field≤1V / m
Line Voltage
Measuring the voltage to ground: Below AC 600V
Accessories
Detector: 1PCS;GPRS Communication module+external antenna
：
1set
（
optinal
），
9P terminal block
Packing :
Package
Outer package
Carton
Inner package
None
Accessory
Meter
1 PCS
GPRS communication module + external antenna
1PCS (Optional)
9-pin Terminal Block
1 PCS
Manual/Warranty Card/Certificate
1 PCS