Input Details
|
| 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 |
| Display resolution |
1:32,000 |
Analogue Outputs
|
| 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. |
Calibration
|
| 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. |
Data Retention/Protection
|
| 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 |
73/23/EEC amended by 93/68/EECBS EN 61010-1:2001, IEC 1010-1-1990 |
| EMC Directive |
89/336/EEC Basic Standard BS EN 61326:1998 |
| EMC Emissions |
BS EN 55011:1998 |
| EMC Immunity |
BS EN 61000-42:1995
BS EN 61000-4-3:2002
BS EN 61000-4-4:2004
BS EN 61000-4-11:2004 |
Options Available
|
| 2 set points |
Output through 5A, 230V AC SPCO relays, with latching option |
| Communications Port |
For data transfer or print via :- |
| 20mA loop |
Enabling up to 254 units to be multi dropped to 1 x RS232 via IF25interface(s) |
| 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. |
