NDWS Series Transformer Temperature Rise Test System
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Product Details
Technical Specifications (Temperature Controller)
10.1-inch color TFT touch LCD or 7-inch color TFT touch LCD
There are four basic display screens: digital display, bar graph display, real-time curve display, and historical curve display. The basic measurement error is less than ±0.2% of full scale, and the digital display range is –999.99 to 1999.99.
Measurement resolution: 1/60,000, 24-bit ADC
The real-time curve recording interval ranges from 1 second to 9,999 seconds, corresponding to a full-screen curve duration of 30 seconds to 300 minutes.
The recording interval of the memory curve can be continuously set from 1 second to 9,999 seconds. Relay output: contact rating is AC 220 V, 3 A; for resistive loads, the load resistance must exceed 2 kΩ. Sixteen output channels are user‑configurable and can be programmed according to the alarm threshold values of each channel. Voltage output impedance: —. DC 24 V power supply: used to power the transmitter, with a maximum current capacity of ≤200 mA.
·Optoelectronic isolation
Standard configuration includes RS232 and RS485 communication; Ethernet communication requires specifying the baud rate—9600, 19200, 57600, or 115200—at the time of order, selectable via settings. · Comes with dedicated test software, providing parameter‑setting tools and application‑level technical support.
·Optional Modbus RTU communication protocol for communication with the host computer
Instruments powered by AC 220 V: AC 85–265 V, with power consumption less than 25 VA. Instruments powered by DC 24 V: 24 V ±10%, with power consumption less than 25 VA. Note: Actual power consumption depends on the total number of channels of the instrument.
Operating temperature range: 0°C to 50°C
Storage temperature range: -20°C to 70°C
Operating humidity range: below 85% RH, no condensation.
Instrument weight (64 channels): approximately 3.8 kg max.
Technical Specifications (Dual-Channel DC Resistance Meter)
- High-voltage side output current: <5mA, 40mA, 200mA, 1A, 5A
Low-voltage side output current: 2A, 5A, 10A, 20A
- Range:
High-voltage side:
- 1 mΩ to 2 Ω (5 A)
- 5 mΩ to 10 Ω (1 A)
- 100 mΩ to 50 Ω ( 200mA )
- 1Ω~250Ω ( 40mA )
- 10Ω~20kΩ ( <5mA )
Low-pressure side:
- 100 μΩ to 500 mΩ (20 A)
- 200 μΩ to 1 Ω (10 A)
- 1 mΩ to 1.6 Ω (5 A)
- 5 mΩ to 4 Ω (2 A)
- Accuracy: ±(0.2% + 2 digits)
- Resolution: 0.1 μΩ
- Operating temperature: 0–40°C
- Ambient humidity: ≤90% RH, no condensation
- Power supply: AC 220 V ±10%, 50 Hz ±1 Hz
- External dimensions: 440×240×390
- Net weight: 15 kg
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Power Technology
2016-04-05
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National Service Hotline: 400-027-8938
Mobile (Manager Chen): 133 9714 9829
Address: Building No. 5, Donghu High-tech Industrial Innovation Base, No. 9 Miaoshan Avenue, Miaoshan Development Zone, Jiangxia District, Wuhan City
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