Selection of DC monitoring equipment for railway construction

Description :

　　PZ series programmable intelligent electrical measuring meter

　　1 PZ series AC detection instrument

　　1.1 Overview

　　This series of instruments adopts AC sampling technology and can measure parameters such as current, voltage, power, power factor, and electrical energy in the power grid separately. The magnification can be set through the panel membrane switch. Equipped with RS-485 communication interface, using Modbus or Profibus protocol; It can also convert the power signal into a standard DC analog signal output; Or with functions such as switch input/output, relay alarm output, etc.

　　1.2 Model Description

　　1.3 Technical indicators

　　1.4 Product specifications

　　● 48 type product specifications

　　Note: "■" is a standard feature, and "□" is an optional feature.

　　Type 72 product specifications

　　Type 80 product specifications

　　● 96 type product specifications

　　Type 42 product specifications

　　● 96B product specifications

　　Note:

　　(1) ■ "is a standard feature," □ "is an optional feature;

　　(2) PZ96B-E3 (E4) does not have pulse output function when it has DO function.

　　1.5 Appearance and Dimensions (Unit: mm)

　　Note: The depth of PZ96B-P3 (P4/E3/E4) is 102, and the depth of PZ96B-AI (AV/F) old products is 127. Please consult the manufacturer for details.

　　1.6 Wiring terminals

　　● Ammeter

　　Voltage meter (frequency meter is the same as single-phase voltage meter)

　　● Power meter

　　● Electric energy meter/total harmonic meter

　　Note 1: Applicable to single-phase energy meters and situations with a switch value of 8DI/2DO;

　　Note 2: Suitable for occasions where 8DI/2DO is optional.

　　Note 3:

　　For the test terminal used for CT secondary side short circuit.

　　Note 4: Suitable for PZ42 (L) - E3 (4) with optional 4DI/4DO and one power pulse signal.

　　2 PZ series DC detection instrument

　　2.1 Overview

　　The PZ series DC measuring instrument is designed for applications such as DC screens, solar power supply, and telecommunications base stations. This series of instruments can measure voltage, current, power, forward and reverse electrical energy in DC systems. It can be used for local display and can also be connected to industrial control equipment and computers to form a measurement and control system.

　　The instrument may have an RS-485 communication interface and use Modbus RTU protocol; Can be equipped with analog output, relay alarm output, and switch input/output. According to different requirements, set and control the transformation ratio, alarm, communication, and switch output through the dashboard buttons.

　　2.2 Model Description

　　2.3 Technical indicators

　　2.4 Product Specifications

　　2.5 Appearance and Dimensions (Unit: mm)

　　72/80/96 type appearance and dimensions

　　● 96B appearance and dimensions

　　● 300 Appearance and Dimensions

　　2.6 Wiring terminals

　　2.6.1 72/80/96/96B wiring terminals

　　● Ammeter

　　● Voltage meter

　　● Multi function table

　　2.6.2 300 type product

　　● Ammeter

　　● Voltage meter

　　● Multi function table

　　3 PZ96B series digital control instrument

　　3.1 Overview

　　The PZ96B series digital control instrument is an intelligent instrument used for power and industrial automation measurement. It integrates multiple measurement functions and is versatile. It can measure DC current, DC voltage, various types of thermocouples, thermistors, and resistance sensors. With a DC24V power output, it can directly supply power to external two-wire transmitters. The instrument has multiple optional functions: RS485 interface, analog output, switch input, relay alarm output, etc. Widely used in the monitoring of power DC screens and the measurement and control of pressure, temperature, displacement, etc. in the field of industrial automation control.

　　3.2 Model Description

　　3.3 Appearance and Dimensions (Unit: mm)

　　3.4 Technical indicators

　　3.5 Wiring terminals

　　PZ96B-DI、PZ96B-DV

　　PZ96B-TS

　　PZ96B-R

Key words:

• Railway DC monitoring equipment