Overview
The HC DTU 2200 series Distribution Terminal Unit are microprocessor-based units intended for small, medium or large data
collection & supervisory control applications. The DTU 2200 is the Multi-Circuit LV Monitoring Module, which is adapted for
monitoring of LV load current. It is required to provide a solution for load current monitoring for the LV distribution board.
Features
- Multi-processor Technology & Distributed Architecture.
- RTU mode Modbus or DNP3.0 (Level 2) compatible.
- True RMS Conversion.
- 24 sets AC Current input (eight 3-phase or six 3-phase LV circuit plus neutral current).
- 3 sets AC Voltage input (1 * 3 phase).
- Provide Programmable Setpoint Functions (over/under current, over/under voltage, over/under KVA, phase loss A/B/C, High Temperature Alarm Output).
- Over 30 Power and Energy paraments (option).
- 1 DC Analog Input (option).
- Low input burden & high accuracy.
- Wide power supply range.
Model & Ordering
Specification
- Communication
- RTU mode ModBus or DNP3.0 (Level 2) protocol
- 1.2K to 19.2K baud, programmable parity
- RS-485 * 1, 2/4 wire multi-drop, isolation
- RS-232 * 1, 9600 baud, isolation
- AC Current Input
- 24 sets ac current input (eight 3-phase or six 3-phase LV circuit plus neutral current)
- 32 samples per cycle, 16-bit resolution, input burden < 0.5VA
- 1A or 5A nominal input range, 0.01 ~ 1.5 * CT conversion range, 0.5% fs accuracy
- Pogrammable CT ratio
- AC Voltage Input
- 3 sets ac voltage input (1 * 3 phase)
- 32 samples per cycle, 16-bit resolution, input burden < 0.05VA
- 120V, 240V or 480V nominal input range, 0.05 ~ 1.2 * PT conversion range, 0.5% fs accuracy
- 40 ~ 70Hz frequency i/p, + 0.02Hz accuracy
- Programmable PT ratio
- Analog Input (option)
- 4 ~ 20mA (250
 ), 0 ~ 10VDC (1M) normal input range, 150% overload
- 1 sec scan time
- 12-bit resolution, 0.25% accuracy @ 25oC, 50PPM/oC
- 100dB CMRR @ 50/60Hz, 70dB NMRR @ 50/60Hz
- Power Parameters Conversion (option)
- Voltage, L-N Average & Individual
- Power Factor total & Individual, 0.5% fs accuracy
- W, Var, VA total & Individual, 1% accuracy
- WH, VarH, VAH 1% accuracy
- Frequency 0.1% accuracy
- Power Supply
- DC20V ~ DC60V input range (9.6W maximum)
- AC85V ~ AC265V input range (9.6VA maximum)
- Environmental
- -25oC ~ 70oC operating temperature
- 5% ~ 95% RH operating humidity
- SWC Test :
- ANSI/IEEE C37.90.1-2002 2.5KV Oscillatory & 4KV Fast Transient Test
- IEC 61000-4-12 Class III & IEC 61000-4-4 Class IV Test
- Impulse Test : IEC 61000-4-5 Class IV Test
- Dielectric Strength : ANSI/IEEE C37.1-1979 / IEC 255-5 (2KV AC rms 1 minute)
- ESD Test : IEC 61000-4-2 Class III Test
- RFI Test : IEC 255-22-3 Class III Test (CE certify : EN50081-1 Class A, EN61000-3-2 Class A, EN50082-1)
- SHOCK Test : IEC 255-21-2 Class I Test
- Vibration Test : EN 50125-3
- Dimension : 300mm (L) * 110mm (W) * 60mm (H)
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