weightcontroller

weightcontroller

Features

  • Flexible weighing indicator
  • Direct Strain Gauge input 4.5 digit resolution
  • Variable sensitivity from 0.5 to 200mV/V
  • Excitation 10V 160mA to drive up to 4 load cells
  • 6 wire input to compensate for zener barrier and cable losses
  • Simple one pass auto calibration for minimum set-up time on site
  • Auto tare and peak hold actioned by volt-free contacts
  • Fully isolated 4-20mA and 0-10V analog outputs
  • RS232 or RS485 communications for setup, data transfer or label/ticket printing
  • Programmable in-flight compensation for dynamic weighing operations
  • AC or DC power supply options

Inputs    
Calibration       Automatic digital by use of keypad and 1 (or 2) known weights. Manual calibration can also be selected
Auto Tare       By pressing keys '>' and then 'R' display will zero. Auto tare value can also be viewed and manually changed if required. Auto tare value is retained on powerdown.
Sensitivity       Preset via DIL switches between 0.5 to 200mV/V
Excitation       10V DC nominal, 150mA maximum
Compensation       By ± sense wires to compensate for cable, connection volt drops and any variation in 10V supply
Accuracy       90 days ± 0.08% of reading ± 0.05% of FS typical
Drift       0.002%ºC typical @ 2.5mV/V
DC Analogue Outputs
DC Voltage       0 to 5V, 0 to 10V, -10 to +10V, Max Current out 50mA
DC Current       0 to 1mA, 0 to 20mA, 4 to 20mA, Max Current out 50mA
Inputs
Accuracy       typical ± 0.08% of output, ± 0.08%FSD
Resolution       as display resolution, max 15 bits
Calibration       by 15-turn pre sets for gain and offset
Inversion       By keypad value
Isolation       ±130V RMS or DC max to analogue input or to any other port
Ranging       Fully keypad scalable over desired display range
PID       Power level, when selected = 12 bit resolution output
Communication Port CP Operation
All display data can be accessed via the communications port along with relay, PID power and EEPROM status. All user configurable data can be changed including EEPROM enable/disable and relay reset (address code cannot be changed).
Type       Details
RS485/422       For up to 32 instruments on 1 bus, 4 wire
20mA       For up to 25 instruments per interface, 4 wire
Cable Length       1km (depending on baud rate)
Baud Rates       300, 600, 1200, 2400, 4800, 9600 (19200 MANTRABUS only)
Electrical Isolation       ±130V RMS or DC max to analogue input or any other port
Formats       MODBUS RTU, MANTRABUS and printer output
Alarm / Control Outputs
SPCO       1 relay on SP1, 2 relays on SP1& 2
DPCO       1 relay on SP1
Relays       230V at 5A AC resistive
Isolation       ±130V RMS
Keypad Programmable Options       Hysteresis, Latching, Output Inversion, Delay Times, PID values and Time Proportioning.
Power Supplies
220V-230V AC 50-60Hz 10W, 110V-120V AC 50-60Hz 10W, 9-32V DC 10W isolated
Base ADW15
Displays       7 segment LED 4.5 digit 10mm.3 x 3mm LED's 2 for relay status, 1 for program and hold indication.
Controls
4 membrane panel keys with tactile feedback. 1 scroll key to view/update parameter. 1 digit select key. 1 digit increment key. 1 reset key. Keypad disable by internal links behind front panel. Hold function by digit select key when in input mode.
Data Retention/Protection
Retention       10 years for set up values, minimum of 100,000 write cycles
Protection of Data Function(s)       Watchdog timer giving repeat auto resets. Impending power detection and hold off. Keypad security and time out.
Physical
Case Material       Grey Noryl, flame retardant
Environmental
Storage temperature       -20 to +70ºC
Operating temperature       -10 to 50ºC
Relative humidity       95% maximum non condensing
CE Environmental Approvals       European EMC Directive 2004/108/EC, Low Voltage Directive 2006/95/EC