Indicator si controler cu montare pe...
Indicator si controler cu montare pe perete SMW
Producator: LCM Systems
This product is no longer in stock
The SMW surface mounted strain gauge display is housed in a light grey ABS case, sealed to IP65 with external dimensions of 200 x 120 x 75mm.
The unit comprises an 8 digit 12.7mm LCD display, on an intelligent base unit with user configurable 4-20mA and 0-10volt analogue outputs.
'Plug-in' module positions are available for power supply, relay and communications options.
The relay module provides for two set points, together with In Flight compensation. Relays can be inverted and latched, all of these facilities being set in engineering terms. Both relay and analogue outputs have a high level of isolation.
A facility is available to alter the default display for Gross or Net values.
The optional communications provide for RS232 and multi drop RS485 connections to a PC, PLC or mainframe. This allows for the input variable to be taken and the set up parameters changed.
Communications protocol options include ASCII, MODBUS RTU and MANTRABUS.
The RS232 port is also available for a Time/Date or Data only printer to be connected, to log all the desired activities.
Baud speeds of 300 to 19200 are programmable.
Power supplies options of 115 or 230VAC and 9 to 32VDC are available.
|Strain Gauge Input||The input is suitable for any full wheatstone bridge sensor. A transducer excitation voltage of 9.6 volts @ 160mA|
|Compensation||±sense wires for cable/safety barrier losses down to 3V excitation.|
|Load cell sensitivity||is preset via DIL switches to 0.5, 0.8, 1.0 1.25, 1.5, 2.0, 2.5,3.5, 5, 10, 20, 50, 100 or 200 mV/V.|
|Initial offset||≤± 0.15mV (15uV/V) which is cancelled during auto calibration.|
|Zero Temperature Coefficient||≤0.002%FSO/ºC typical with 2.5 mV/V sensitivity selected|
|Span Temperature Coefficient||≤0.005%reading/ºC|
|Excitation||9.6V DC nominal, 170mA maximum|
|Repeatability||≤0.01% reading over 90 days|
|Display Update Rate||Selectable between 0.1 and 25.5 seconds|
|Display Average||Set by programmer keypad, up to 64 standard up dates|
|Drive||4-20mA up to 1Kohm and 0-10 volts up to 2mA.|
|Accuracy||4-20mA ±0.15% of range (typically). 0-10V ±2% before calibration.|
|Resolution||13 bit (Settling time 0.25 secs to 1% of step change)|
|Isolation||±130V RMS or DC max to analogue input or any other port.|
|A simple input Auto Calibration is achieved by entering the values of the lowest and highest weights used. Analogue output is pre calibrated and can be ranged over any part of the displayed range. Both input and output are calibrated via the front panel keypad. Gross, Net and Tare are activated by front panel function keys. Peak Hold is actioned by volt free contacts.|
‘Plug in’ Output options include
|Relay Set Points||Programmed in engineering units, with In Flight compensation and Hysterisis Settings available for control or alarm purposes.|
|Communications||To read any value, change set points or any other parameter via:RS232/RS485 (LC3)|
|Format||MANTRABUS, ASCII, MODBUS RTU|
|Printers Activated by a function key or contact will allow print, the current live value, with header message, engineering units, auto incrementing batch number and real time if required|
|Options||9-32V DC power supply (LS3)display module display back lighting
rail mounting for the Motherboard Analogue Output Module
High Speed Strain Gauge input.
|Retention||10 years for set up values, minimum of 100,000 write cycle|
|Protection of data & function||Watchdog timer giving repeat auto resets. Impending power detection and hold off. Keypad security and time out.|
CE & Environmental
|Storage temperature||-20 to +70ºC|
|Operating temperature||-10 to 50°C|
|Relative humidity||95% maximum non condensing|
|Safety/Low Voltage Directive||2006/95/EC|
|2 set points||Output through 5A, 230V AC SPCO relays, with latching option|
|Communications Port||For data transfer or print via :-|
|RS485||Enabling up to 32 units to be multi dropped.|
|RS232||For 1 to 1 connection and standard printer drive.|
|Printer Operation||By front panel function key.|
|Baud Rates||300, 600, 1200, 2400, 4800, 9600 (19200 MANTRABUS only) 9600 for MODBUS|
|Back Lighting||For the LCD display|
|DIN Rail Mounting||For the CPU, PSU and output option modules|
|DC Powering||9-32V DC|
|Remote Mounting||Display module, for panel mounting.|
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