Shanghai macro | ETCR2800N-built-in grounding resistance on-line measuring instrument

Shanghai macro | ETCR2800N-built-in grounding resistance on-line measuring instrument

1+
1580 CNY (230.06USD)
2+
1500 CNY (218.41USD)

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Product parameters:

  • Brand: meet macros
  • Model: ETCR2800N
  • Customized processing: no
  • Measurement accuracy: ± 2%RDG ± 3dgt (20 ℃ ± 5 ℃, 70%RH)


Profile
ETCR2800N Built-in non-contact grounding resistance on-line monitoring instrument is our ten years of commitment to ' detection technology of grounding resistance ', another high-tech products, designed for online monitoring of grounding wire connection, circuit grounding resistance, resistance and metallic circuit connections carefully designed and manufactured. Online testing, non-contact measurement, ground through the heart by no self test, real-time. RS232, RS485 or MODBUS-RTU communication protocols, its sensors and circuit boards can be built into other devices in the chassis and user-friendly secondary development integration.
ETCR2800N Built-in non-contact grounding resistance on-line monitoring instrument applied to transmission tower grounding; Underground mine equipment grounding; Weather grounding; Grounding for petrochemical; Communications earthing; Substation grounding; Railway facility grounding; Building warehouse grounding; Grounding of electrical equipment, and other places. Can also be used for grounding wire, metal cable anti-theft monitor.
ETCR2800N Built-in non-contact grounding resistance on-line monitoring instrument can be a single installation, or into a wired network or a wireless network system.
Two. Technical specifications
Function
Circuit grounding resistance on-line monitoring, and metallic circuit connections resistance on-line monitoring, grounding condition monitoring; Grounding wire, metal cable anti-theft monitor.
Power supply
6VDC ~ 9VDC, 50mA Max.
Resistance range
0.01Ω~ 200Ω
Resolution
0.001Ω
Output range
0.00Ω~ 500Ω
Precision
± 2%RDG ± 3dgt (20 ℃ ± 5 ℃, 70%RH)
Sensor size
110mm ×80mm×55mm
PCB Dimensions
166mm ×56mm×20mm
Ground piercing sizes
66mm X36mm, closed-type
Overflow instructions
When the displayed value is greater than 500 ω, sending traffic 'OL ω ' directive
PCB Interface
J1: Output signal power input
J2: Sensors and PCB connectors
J1Identifies the
P+: Power supply input positive
P-: Power supply input
GND : Signal ground, and power supply input (P-) short
R+: Signal output
R-: Signal output
J2Identifies the
I+, I-current loop interface
U+, U-voltage coil interface
GND Total
Connector
1Section 1 m long (5-core shielded cable)
Connected line identification
---Red/Brown power input;
---Black power input;
Blue---RS485 signal;
Grey---RS485 signal;
---White shield;
(Power input connected to the shielding can short circuit)
Agreement
RS232RS485 or MODBUS-RTU communication protocol
Quality
About 680g
Working temperature and humidity
-20℃~ 55 ℃; 20% RH~ 90% RH
Temperature and humidity errors
Less than 5%
Shift
Automatic gear shift
Wire interference current
You should avoid
The external magnetic field
< 40A/m
An external electric field
< 1V/m
Single measurement time
About 0.5 seconds
Power consumption
50mA Max.
Install
Ground wire through the heart Center through the sensor holes
Installation requirements
In other chassis circuit boards need to avoid rain, water leaching installation
Power supply mode
External power supply
Supplied accessories
Sensor: 1; PCB module: 1; Connector: 1