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CW120 Clamp-On Power Meter
Brand: Yokogawa Electric CorporationSpecifications
- Compact & lightweight body with large back-lit LCD
- Current clamps in a range of sizes(small to large diameter)
- Support for large-capacity ATA flash memory (equipped with PC card slot)
- Data can be saved at from 1 second
- Wiring error check function
- 2 or 3-load system
- Simultaneous measurement of multiple use possible by external control terminal
- Parameters setting tool is included to set measurement conditions through PC
Specifications
Accuracy
- ± (0.3 % of Reading + 0.2 % RNG) - Voltage
- ± (0.8 % of Reading + 0.4 % RNG) when Using Clamps 96030, 96031, & 96033 - Current/Active Power
- ± (1.2 % of Reading + 0.8 % RNG) when Using Clamp 96032 - Current/Active Power
Approvals & Certifications
- CE
- EMC: EN 61326, EN 55011, EN 61326, EN 61000-3-2, EN 61000-3-3, EN 61010-1, EN 61010-2-031, Group 1, Class A
- UL 3111-1 First Edition
Communication
- Baud Rate: 1,200, 2,400, 4,800, 9,600, 19,200, 38,400 bit/sec
- Modbus Communication Protocol (ASCII/RTU)
- PC-Link Communication Protocol
- Power Monitor Communication Protocol
- Proprietary Communication Protocol
- RS-232
- RS-485
Consumption
- 8 VA, Max.
Current
- 1,000 Arms: 96032 Clamp - Max.
- 130 Arms: 96033 Clamp - Max.
- 200-1,000 A: 96032 Clamp - Rated Value
- 20-200 A: 96030 Clamp - Rated Value
- 250 Arms: 96030 Clamp - Max.
- 50-500 A: 96031 Clamp - Rated Value
- 5-50 A: 96033 Clamp - Rated Value
- 625 Arms: 96031 Clamp - Max.
Display
- 4-Digits - Other Parameters
- 6-Digits - Electric Energy
- Segmented LCD Display
- Segmented LCD with Backlight
Electrical Connectors
- 2-Pin: AC Power Supply
- RS-232: Mini DIN 8-Pin
Frequency
- 45 to 65 Hz
Humidity
- 5 to 85 % Relative Humidity, Non-Condensing
- 90 % Relative Humidity, Non-Condensing - Storage Temperature
Insulation Resistance
- 50 Megawatts at 500 Vdc
Interface Connection
- RS-232
- RS-485
Maximum Voltage
- 495 Vrms
Output
- TTL Level
Power Requirement
- ± 100 ppm - Typical Precision
- 100-240 Vac ± 10 %, 50/60 Hz
Power Supply
- 100-240 Vac, Supply the Power from Input
Resistance
- Approximately 1.5 megaohms for Voltage - Input Resistance
- Approximately 100 kiloohms for Current - Input Resistance
Resolution
- 12-bit
RFI/EMI Effect
- 400 A/m - External Magnetic Field Effects
Storage Temperature
- -10° to 60° C (14° to 140° F)
Supply Voltage
- 2,300 Vac for 1 Minute between Powerline & Case, Power Line & Current Input Terminals, Communication Terminals, & Control I/O Terminals
- 3,320 Vac for 1 Minute between Voltage & Current Input Terminals, Communication Terminals, & Control I/O Terminals
- 5,550 Vac for 1 Minute between Voltage Input Terminals & Case
- Up to 495 V - Voltage Measurements
Temperature Effect
- ± 0.05 % Rng/°C - Temperature Coefficient
- ± 0.07 % Rng/°C - Temperature Coefficient
Temperature Range
- 0° to 40° C (32° to 104° F) - Usage Temperature
- 0° to 50° C (32° to 122° F)
Update Time
- Approximately 1 second
Wiring
- Single-Phase 2-Wire
- Single-Phase 3-Wire
- Three-Phase 3-Wire
