M850-LTHN-RS-PO

M850-LTHN POWER METERS DESCRIPTION The new range of Hobut power meters feature 96 x 96mm moulded cases and selectable three colour backlight LCD screens. The range is easy to use, features user-programmable CT & VT ratios, and can be used on any single or 3 phase system with any input voltage without re-programming. APPLICATION The range is a cost effective replacement for traditional panel meters and is suitable for low, medium and high voltage control panels, gensets, building management systems, power management and more. The user can select the colour screen preferred, either blue, green or white RANGE ORDERING INFORMATION STANDARD PRODUCT OPTIONAL EXTRAS STANDARD FUNCTIONS: M850-LTHN RS-PO 1 D MV BAC Phase Voltage (V) Instantaneous Amp Demand Phase to Neutral Voltage (V) Instantaneous Watt Demand LCD power meter with Phase Current (I) Instantaneous VA Demand THD, suitable for any 1 or Frequency (Hz) Maximum Amp Demand 3 phase system, AC aux 100-440V, or Active Power (W) Maximum Watt Demand DC aux 100-420V, 5A input Active Energy (kWh) Maximum VA Demand Reactive Power (VAr) Neutral Current Inbuilt RS485 (Modbus) & pulse output Apparent Power (VA) THD Current Reactive Energy (VArh) THD Voltage 1A input Power Factor (PF) DC AUX 10-70V 333mV Input PROGRAMMABLE FUNCTIONS (instead of 5A standard) All models feature the AC or DC AUX following user-programmable Single or 3 phase system Inbuilt RS485 (Bacnet MSTP) functions: Input voltage range 28-570V Selectable Screen Colour RS485 address, 1-247 Current Transformer Ratio Security code access for Order example: a standard product with RS485 (Modbus) and Voltage Transformer Ratio programming pulsed output is part number M850-LTHN-RS-PO Baud Rate, Parity, Stops CONTROLS AND PROGRAMMING CONTROLS: 4 front buttons are used for scrolling through parameters and programming DISPLAY: A unique large custom LCD, with 3 user-programmable colour options COMMUNICATIONS: An optional RS485 port allows communication via Modbus RTV or BACNET (MSTP) protocol PULSED OUTPUT: A relay output can be assigned to either W.h or Var.h INSTALLATION: Supplied with installation guide or download complete installation manual and RS485 Modbus register address at www.hobut.co.uk/power-metersM850-LTHN POWER METERS SPECIFICATIONS ACCURACY INSULATION Volts/Amps: 0.5% of reading Installation category: III (480 V AC ph/ph) Frequency: 0.1 Hz Degree of pollution: 2 Active Power: 1% of reading Rated impulse withstand voltage: IEC 60947-1-V imp: 4kV Apparent Power: 1% of reading Meters front: Class II Power Factor: 1% of range Electrical security: IEC 61010-1 Energy: IEC 1036 Class 1 Inputs + Aux to case: 4kV rms 50Hz for 1 min INPUT Inputs + Aux to RS485 port: 3kV rms 50Hz for 1 min Rated Un: 28-330V LN, 48-570V L-L Inputs + Aux to relay output: 1k5V rms 50Hz for 1 min Overload: 800V continuous Low voltage dc Aux to Inputs: 1k5V rms 50Hz for 1 min Burden: 0.5VA per phase ELECTROMAGNETIC COMPATIBILITY Rated In: 0.5-6A (5A nominal) Immunity to: Overload: 10 In for 1 sec electrostatic discharges: IEC 61000-4-2-Level III Burden: 0.5VA per phase radiated radio-Hz fields: IEC 61000-4-3-Level III Auxiliary: 100-440V AC / 100-420V DC electrical fast transient/brusts: IEC 61000-4-4-Level III (or 10/70V DC) impulse waves: IEC 61000-4-5-Level III Frequency: 45/65Hz conducted disturbances: IEC 61000-4-6-Level III DISPLAY voltage dips & short interruptions: IEC 61000-4-11 Digits: 4 lines 9999 Emissions to: Custom LCD conducted and radiated: CISPR11-Class A Brightness: User adjustable ENVIRONMENT OUTPUT RELAY Working temp: -20 to +70C Wh or VArh: SPNO rated 50V Storage temp: -40 to +85C Pulse output: 150mA 5W AC/DC Relative humidity: 0-95% non condensing Pulse duration: Programmable from 40msec-200msec Shock: 30G in 2 planes ENCLOSURE Black polycarbonate case to UL94V0 Weight: 0.3kg IP Rating: IP52 (front) CONNECTION DIAGRAM VOLTAGE CURRENT L1 L2 L3 N L1 L2 L3 L+ N- 1ph 3 - - 3 3 - - AUX UH N L3 L2 L1 1ph 3W 3 3 - 3 3 3 - L3 L2 L1 3ph 3W 3 3 3 - 3 - 3 lk lk lk 3ph 4W 3 3 3 3 3 3 3 L1 3ph 3W BAL 3 3 3 - 3 - - LK L2 3ph 4W BAL 3 - - 3 3 - - LK L3 Unused Voltage terminals are internally connected LK Secondary of CTs must be connected to earth N DIMENSIONS (mm) 96 19 61 92 (+0.8) 92 (+0.8) 96 Panel cut out Our policy is one of continuous development and therefore specifications may change without notice. HOWARD BUTLER LTD CROWN WORKS, LINCOLN ROAD WALSALL WS1 2EB ENGLAND Tel: 01922 640003 Fax: 01922 723626 International Tel: +44 1922 640003 E-mail: sales hobut.co.uk Web: www.hobut.co.uk June 2014