YOKOGAWA CW500 Power Quality Analyzer

YOKOGAWA CW500 Power Quality Analyzer

Instrument positioning and core use

CW500 is a portable power quality analyzer that can accurately measure voltage, current, power, harmonics, and power quality events (sudden rise/fall/interruption, transient overvoltage, impulse current, flicker, etc.). It supports various wiring systems from single-phase two wire to three-phase four wire, and is widely used in power quality assessment and problem solving in factory distribution systems, new energy power stations, data centers, and other scenarios.

Core difference models: divided into two categories: with Bluetooth function (- B1, only applicable in Japan, the United States, and Canada) and without Bluetooth function (- B0). The power cord is configured according to regional standards (such as GB standards, VDE standards, etc.), and the corresponding model needs to be selected according to the usage region.

Open box inspection and accessory instructions

1. Packaging content confirmation

After unboxing, it is necessary to verify the instrument model and suffix code (such as power cord standard, Bluetooth function) to ensure consistency with the order. The core accessories are shown in the table below:

Serial number, accessory name, model/specification, quantity description

1 set of voltage probe 98078, including 4 red, white, blue, and black wires (with crocodile clip), to match the terminals according to the wiring color

According to regional standards (such as UL/CSA for - B and GB for - H), one cord with a maximum rated voltage of 250V (125V for some models) needs to be matched with local power grid standards

3 USB cables L3064AD 1 for connecting PC and instrument, supporting data transmission and remote control

4 AA alkaline batteries (LR6) with 6 spare power supplies, with a full charge range of about 3 hours (when the backlight is turned off)

5 SD memory cards 97060 (2GB), 1 card for storing measurement data, supporting FAT16 format

6 portable cases 93046 1 protective instrument from impact and dust

7 Input Terminal Board -1 piece selected by wiring color (6 types), pasted on the top terminal area of the instrument

8 ID tags with 8 colors (red/blue/yellow, etc.) are pasted on both ends of the probe, corresponding to the terminal colors, to avoid wiring errors

9 CDs -1 sheet including application software and electronic manual (PDF)

1 set of 10 manuals including IM CW500-02EN, quick start guide, installation manual, and safety manual

2. Optional accessories (purchased separately)

It mainly includes current clamp probes with different ranges (2A~3000A, such as 2A for 96060 and 3000A for 96066), power adapters (98031, CW500 specific), banana head DIN adapter cables (99073), etc. The appropriate probe should be selected according to the measurement current range.

Safety regulations and operational limitations

1. Safety symbols and warnings

Warning: Refers to the risk of fatal/serious injury, such as prohibition of use in explosive environments, prohibition of unauthorized disassembly of instruments, and power-off and removal of probes before replacing batteries.

CAUTION: It involves the risk of minor injury or equipment damage, such as avoiding short circuits at the metal end of the probe, measuring beyond the range for a long time, and using in humid environments.

Protection level: Double insulation design, measurement category in accordance with IEC61010 standard, voltage limits for different categories are as follows:

CAT IV: 300VAC (applicable to power input terminal)

CAT III: 600VAC (applicable to distribution panels, circuit breakers)

CAT II: 1000VAC (suitable for household appliances and portable tools)

2. Operating environment restrictions

Environmental conditions: working temperature 0~45 ℃, relative humidity ≤ 85% (no condensation); Storage temperature -20~60 ℃, altitude ≤ 2000m, indoor use.

Electromagnetic compatibility: Class A industrial equipment may cause radio interference when used in residential areas, and users need to solve the interference problem themselves; Compliant with standards such as EN 61326-1 and EN 55011 Class A.

Instrument structure and functional layout

1. Name and function of core components

(1) Front panel

Component Function Description

Display screen 3.5-inch color TFT LCD (320 × 240 pixels), displaying measurement data, waveforms, vector graphics, etc

Function keys (F1~F4) execute menu options at the bottom of the screen, such as "Zoom", "Trend", "Customize"

The PRIMT SCREEN key saves the current screen as a BMP file to the SD card

Press and hold the DATA HOLD/KEY LOCK key for 2 seconds to lock all keys, then press and hold again to unlock; Short press to maintain display (measurement continues)

Press and hold the power button to turn on/off, and the interface from the last shutdown will be displayed after turning on

LCD key switches backlight switch, adjusts contrast and brightness

START/STOP key to start/stop data recording, status LED: green light constantly on indicates recording, green light flashing indicates standby

(2) Top terminal area

Voltage input terminals: VN (neutral wire), V1/V2/V3 (phase wire), supporting single-phase to three-phase wiring.