Non Contact Grounding Resistance Online Detector Earth Resistance Tester 200Ω

Description

Non Contact Grounding Resistance Detector Online Earth Resistance Tester 200Ω
Instruction:
Non-Contact Grounding resistance Online Detector used for on-line monitoring the earthing resistance of earthing system, measure range: 0.010Ω~200Ω. On-line testing, non-contact measurement, grounding wire pass through the perforation of the detector, definitely not influence grounding for lightening effect and normal operation, real time on-line testing. Use by RS485 wire communication or GPRS wireless communication data transmission, realize remote online monitoring .Detector built-in sensor and circuit board, completely sealed, ensure high-accuracy, high stability and high reliability of long time on-line monitoring at  field and indoors.
Non-contact Earth Resistance Online Detector, can display the measured data directly through the LCD; the detector could set alarm threshold, with sound and light alarm indication, suitable for independent installation and use no need to set up the network.
Product Main Function
1.On- line monitoring the earth resistance of grounding system
2. Measure Range: 0.010Ω~200Ω
3. With GPRS communication and RS485 interface
4. 47mm×28.5mm LCD
5. Network system can be built to realize real-time detection and remote monitoring
6. EX-Mark: Exia
Ⅱ
BT3Ga
7. Explosion Proof Certification: CE18.2332X
Specification:
Function
Return circuit grounding resistance on-line monitoring, metal return circuit resistance connection online monitoring, grounding condition monitoring.
CT structure
Closed loop
Power Supply
Detector
：
6VDC
～
12VDC
，
50mA Max(GPRS 12VDC 150mA Max). (Ui
：
6V
；
Ii
：
50mA
；
Ci:0μF
；
Li:0mH
；
Pi
：
0.1W)
（
User supply)
，
Instrument and safety barrier matching relation
：
Uo≤Ui
，
Io≤Ii
，
Po≤Pi
，
Co≥Ci
，
Lo≥Li
Resistance Range
0.01Ω~200Ω
Resolution
0.001Ω
Accuracy
±2%rdg±3dgt(20
℃
±5
℃
，
below 70%RH)
CT Size
60mmx28mm
Overflow Indication
test data>200Ω, system software or LCD display “OLΩ” symbol;
Connection line
1pcs ,1 meter cord(5 core wire)
Connection Identifier
Red/brown---power supply input anode;
Black--- power supply input cathode;
Blue---RS485 signal anode;
Grey---RS485 signal cathode;
White--- grounding wire shield
(power supply input cathode can connects with analog grounding by short circuit connection)
Communication Method
Wired network: RS485 communication protocol(support MODBUS)
Wireless network: RS485 or GPRS communication protocol(support MODBUS)
Network Points
Wired network: 1 ~ 250 grounding points, scalable
Wireless network: 60000 grounding points, can be expanded
Communication distance
Wired network: about 1500m,scalable
Wireless network: not limited
Alarm Indication
the detector sound-light alarm and LCD display
Alarm Setting
System Software Settings
Data Display
LCD display
Dimensions
Detector: 132mm × 130mm × 76mm
Weight
Detector: 1KG
Working  Temperature And Humidity
-20
℃
~55
℃
;20%RH~90%RH
Humidors Error
Within 5%
Shift
Automatic shift
Grounding Lead Interference Current
Should be avoid
External Magnetic Field
<40A/m
External Electric Field
<1V/m
Single Measurement time
About 0.5 second
Working current
Detector: 50mA Max.(GPRS: 12VDC 150mA Max)
Explosion-proof mark
Ex ia
Ⅱ
B T3 Ga
Explosion-proof Certification
CE18.2332X.
Protection Level
IP54
Power Supply Mode
External power supply (Equipped by user)
Packing :
Package
Outer package
Carton
Inner package
None
Accessory
Meter
1 pcs
Power and Communication Cable
1 pcs
Manual
1 pcs
Certificate
1 pcs
Warranty Card
1 pcs