DMWH300 Monitors Accumulated Energy & Demand DM SERIES Accumulated Energy & Demand Monitor Key Features n Single Phase And/ Or Three Phase Metering n Revenue Accurate Readings Of Bi-Directional Energy, Power & Demand n Easily Programmed for Any CT or PT Ratio n RS232 and RS485 Communications Available n Nonvolatile Memory -- No Battery Needed n 7 Digit Display -- No Multiplying Factor n Rugged Utility Grade Design n Superbright LED Option for Direct Sunlight Applications Description Analog Outputs The DMWH 300 is a highly accurate, The unit offers a 0-1mA or 4-2omA ana- low cost, bi-directional energy demand log output for wattage readings. A Form C meter. This utility grade, micropro- KYZ pulse is also available for watt-hour cessor.based unit monitors kilowatts, kilo- readings. When energy demand rises above expec- Digital Communication tations, the DMWH 300's control outputs are available. The unit uses an ASCIIbased protocol. Programmable Settings Alarm Limits & Relay Outputs grammed to handle any CT or PT ratio. This unit is available in standard bright- for viewing in direct sunlight. Both RS232 and RS485 communications trigger to shed load or alarm. DMWH 300 monitors can be pro- Superbright Display ness for indoor applications or superbright watt-hours and kilowatt demand in utility, industrial and commercial applications. years. The device also e xceeds all IEEE C37.90.1 surge withstanding standards. The DMWH 300 offers set points and Their programming and reset features are Form C dry contact relays for over and password protected. under wattage, both positive and negative. Nonvolatile Memory Utility Grade Construction Product Applications * Sub-Metering Energy Usage * Cost Allocation Applications * Commercial Facilities * Utility Substations * Power Generation Applications A nonvolatile serial EEPROM safely stores the unit's readings when it is pow- With a rugged, utility-grade design, the DMWH 300 is built to run flawlessly for ered down. There's no need for a battery. Electro Industries/GaugeTech The Leader in Web Accessed Power Monitoring Revenue Accurate to Utility Metering Standards Dimensions & Typical Wiring Information 3-PHASE, 4-WIRE WYEs with DIRECTVOLTAGEANDCTs 3-PHASE OPENDELTA I009839 + Specifications Note: Download manual from www.electroind.com to get additional wiring configurations. INPUT VOLTAGE RANGE 150V Phase to Neutral (also used with PTs for extended input range) n 300V Phase to Neutral, Up to 600V Phase to Phase (Option G) ACCURACY 0.4%, +1- Digit Resolution n Instantaneous: 4 Digits n Total Energy: 6 Digits n Meets ANSIC-12 1995 n CONTROL POWER 115V AC 20%,6VA 47- 400Hz (Option 115A) n 230VAC 20%, 6VA 47- 400Hz (Option 230A) n 24-48V DC 20% 6VA (Option D) n 125V AC or DC 20%, 6VA universal (Option D2) n INPUT CURRENT RANGE n 10A Maximum n OPERATING TEMPERATURE n -20C to +70C INPUT WITHSTANDING n Voltage and Current: Continuous 200% Rated n Surge:10x Rated Per 3 Seconds n Surge Withstanding: Per IEEE C37.90.1 BURDEN n Voltage: 0-1VA Maximum n Current: 0.1VA Maximum I/O ISOLATION 2500V AC, 60Hz (minimum isolation between any input and output) n SENSING METHOD True RMS COMMUNICATION FORMAT n 1 Start Bit, 8 Data Bits, 1 Stop Bit n Programmable from 1200 to 4800 Baud UPDATE TIME n 1 Second n FREQUENCY RANGE n Fundamental 45-75Hz Ordering Information Connection Model Option Numbers: Power Labeling Operating Voltage Control Power Relay/Pulse Option Display Brightness Specify a unit by writing its option numbers below. See sample. Specify your CT and PT ratio, Delta or Wye System. If a specification is given, it will be preprogrammed in the factory. - Example: DMWH 300 - - 3E 3E 3 Element Wye System 2.5E 2 .5 Element Wye System 2E 2 Element Delta System DMWH 300 - - KW - - 120 - - 115A KW Kilowatts 120 120/208 115A 120VAC MW Megawatts G 277/480 230A 230VAC20% - - NL - NL 2 Relays and 1 KYZ Pulse BRT BRT Super Bright for Direct Sunlight D 24-48VDC D2 125VAC or DC Accessories K110 SF232DB SF485DB SDFI-1 or SDFI-20 Mounting Kit RS232 Communication Adapter RS485 Multi-Drop, Daisy Chain Communication Adapter 2 Channel Analog Outputs Remote terminal block mounting kit with 36" cable and mounting bracket. Limited to a distance of 50 feet between the central computer and the DMWH 300. The maximum distance is 4000 feet between the computer and DMWH 300. SDFI-1 provides 0-1mA output. SDFI-20 provides 4-20mA output. Outputs can can be mapped to any reading. Both channelsare bi-directional. Unicom 2500-F Interface Converter RS485 to RS232 to Fiber Converter. Electro Industries/GaugeTech 1800 Shames Drive * Westbury, NY 11590 1- 877- EIMETER (1- 877- 346-3837) * E-Mail: sales@electroind.com Tel: 516-334-0870 * Web Site: www.electroind.com * Fax: 516- 338-4741 E104722