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Digital Interface RS485 output leakage current sensor SZ1- Manual

Digital Interface RS485 output leakage current sensor SZ1- Manual

Digital Interface RS485 output leakage current sensor SZ1- Manual

Product catalog summary
General Description: This document provides instructions for a DC current measurement micro power isolation sensor by Shenzhen Socan Technologies Co., Ltd. The sensor features a round structure with no insertion loss and good overload capability. It is designed for insulation monitoring in DC power systems and uses an RS-485 digital communication interface to measure DC system insulation leakage current.
Model: SZ-1 with a 20mm diameter.
Main Technical Indicators:
  • Accuracy: ±1% reference error.
  • Digital Output: Measured current value.
  • Output Interface: RS-485, two-wire system, 1200m communication distance, ±15KV ESD protection.
  • Input Current: DC Current ranges 0~±10mA and 0~±20mA.
  • Baud Rate: 9600bps.
  • Refresh Time: ≤ 350ms.
  • Working Temperature: 0℃ to +50℃.
  • Temperature Drift: 500ppm/℃.
  • Isolation Voltage: ≤3000V DC.
  • System Power Consumption: ≤18mA at +12V.
  • Overload Input: 1.5 times the rated current.
  • Auxiliary Power: +12V (±5%).
Product Wiring: The document includes a pin definition table for wiring connections.
Product Dimensions: The SZ1 structure measures 85x40x85 mm.
Installation: The product supports DIN35 rail mounting or screw installation. Installation dimensions and indicators for work and communication status are provided.
Precautions:
  • Verify product details against the packing list before use.
  • Ensure correct wiring connections before powering on.
  • Maintain auxiliary power accuracy and ripple requirements.
  • Avoid environments with conductive dust or corrosive gases.
  • Secure terminals before measuring input/output with power leads.
  • Shield induction holes in magnetic interference environments.
  • Do not adjust zero output and precision without contacting the company.
  • Do not alter product markings.
Product Picture: The document includes a visual representation of the leakage current sensor.
Communication Protocol: The sensor uses the MODBUS Communication protocol in RTU mode.
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Catalog excerpts

Digital Interface RS485 output leakage current sensor SZ1- Manual-1

Shenzhen Socan Technologies Co.,ltd Digital Interface leakage current ---- Instructions DC power supply systems - Digital interfaces leakage current smart electricity isolation sensor------- Instructions 一 Generally description This product is a DC current measurement micro power isolation sensors, perforated in round structure, no insertion loss, good overload capablity, between its input and output there are not common ground, the input signal is a DC micro-current, output RS -485 digital communication interface and the true value of the field can be used to measure the DC system insulation leakage current. This product can be widely used for insulation monitoring DC power system for each circuit. 二、 Model SZ-120mm diameter 三、 The main technical indicators (auxiliary power supply for 12V) 1 Accuracy class: ± 1% (using a reference error) 2 Digitial output: measured current value 3 Output interface: 1: RS-485: two-wire system, the communication distance: 1200 m, ± 15KVESD protection, 2: Digital true value 4 Input current: DC Current-0~±10mA0~±20mA 5 Baud Rate: 9600bps 6 Refresh time: ≤ 350mS 7 Working temperature 0℃+50℃ 8 Temperature drift 500ppm/℃ 9 Isolation voltage ≤3000V DC 10 System power consumption ≤18mA (+12V) 11 Overload Input: 1.5 times of the rated current 12 Auxiliary power: +12 (± 5%) (please indicate when order) 四、 Products wiring (Figure) Table 1 Pin Definition Table 1 Pin 五、 Product Dimensions SZ1 strucure and size as follows :( exterior structure shown in Figure 2)

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Digital Interface RS485 output leakage current sensor SZ1- Manual-2

六、 Installation Products adapt DIN35 rail mounting or screw installation, the installation dimensions

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Digital Interface RS485 output leakage current sensor SZ1- Manual-3

shown in Figure 3: Terminal pitch5.08mm Red for the work lights, even blinking for normal work. Green is communication indicator, normal communication with the host computer when lights flashing. 七、 Precautions 1. According to the packing list and product labels, carefully check and confirm the number of products, models and specifications before use. 2. Product model must be selected with reference to the corresponding wiring diagram, check the wiring connected to the signal input, output and auxiliary power correctly before turn on the auxiliary power supply. 3. Auxiliary Power Requirements:...

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