High Resolution Weighing Indicator & Controller (SMW-HR)

High Resolution Weighing Indicator & Controller (SMW-HR)
Optional stainless steel enclosure (LSS)
  • High Resolution of 500,000 counts
  • Multi-point linearisation capability (4 points)
  • 12 Calibration profiles stores for 12 different sensors
  • Provides excitation of 10V @ 160 mA to drive up to 6 x 350 Ohm load cells
  • Six wire measurement system can compensate for zener barrier losses
  • Fully digital set-up and calibration using built-in LCD display and keypad or comms
  • Auto tare and peak hold actioned by volt-free contacts
  • Setpoints and event handling using digital inputs and 2 x SPCO relays
  • Fully isolated 4-20 mA and 0-10 V analog outputs
  • RS232 or RS485 communications for setup, data transfer or label/ticket printing
  • IP65 / NEMA4 ABS housing for bulkhead mounting
  • AC or DC power supply options

The SMW-HR high resolution weighing indicator and controller is a very flexible digital load cell indicator and display system in a bulkhead mounting format, optimised for single or multiple load cell and weighing applications.

The digital architecture offers very easy one-pass calibration and fast setup. This versatile weighing indicator and controller offers options of isolated analogue outputs, latching relays or digital outputs for control or alarm functions.

The RS232 or RS485 options provide for digital communications (including setup) and can support label or ticket printers.

This SWW-HR version of the weighing indicator and controller incorporates a very high resolution (24-bit) A-D converter and therefore offers an internal resolution of 500,000 counts. This additional performance on the SMW-HR is of benefit for multi-range scales and for applications where the live weight is very small in relation to the dead weight (tare weight).

For a panel mount or DIN rail mount version, see model ADW15 weighing indicator with analogue data & relay outputs,
For a wireless telemetry version, see models T24-SO and SERIALDIS remote digital display module.

 Inputs 
Strain Gauge Input  The input is of the load cell/strain gauge type. A transducer excitation voltage of 9.6 volts @ 160mA
Compensation by ± sense wires for cable and safety barrier losses down to 3V excitation

 

Load Cell Sensitivity 1.25, 2.5, 5, 7.5,15 or 30 mV/V
Initial Offset is no greater than ± 0.15mV (15uV/V) which is cancelled during auto calibration
Zero Temperature Coefficient 0.0005% FSO/ºC typical with 2.5 mV/V sensitivity selected
Span Temperature Coefficient <0.0017% reading/ºC
Excitation 9.6V DC nominal, 150mA maximum
Repeatability ±0.002% reading over 90 days
Display Update Rate Programmer keypad selectable between 0.1 and 25.5 seconds

 

Display Average Set by programmer keypad, up to 64 standard up dates

 

Measurement Resolution 1:500,000
Analogue Outputs
Type 4-20mA and 0-10V
Drive 4-20mA up to 1Kohm and 0-10 volts up to 2mA
Accuracy 4-20mA + 0.15% of range, typical. 0-10V ±2% before calibration
Resolution as for display up to 13 bits/4.5 digits. Settling time 350mS to within 1% of step change.
Isolation ±130V RMS or DC max to analogue input or any other port
Power Supplies
LS1 110V-120V AC or 220/230V AC 50-60Hz 10W

 

LS3 9-32V DC 10W isolated
Data Retention/Protection
Retention 10 years for set up values, minimum of 100,000 write cycles.

 

Protection of Data and Function(s) Watchdog timer giving repeat auto resets. Impending power detection and hold off. Keypad security and time out.
Other Options & Accessories
2 Set Points Output through 5A, 230V AC SPCO relays, with programmable latching inversion, hysteresis, In Flight (RL1)
Communicatiosn Port For data transfer or print via :-
20mA Loop Enabling up to 254 units to be multi dropped to 1 x RS232 via IF25 interface(s)
RS485 Enabling up to 25 units to be multi dropped

 

RS232 For 1 to 1 connection or standard printer drive
Printer Operation By front panel function key

 

Baud Rates 300, 600, 1200, 2400, 4800, 9600 (19200 MANTRABUS only)
DIN Rail Mounting For the motherboard
DC Powering 9-32V DC

 

Remote Mounting Display module, for panel mounting

 

Back Lighting For the LCD display
Environmental
Storage Temperature -20 to +70ºC
Operating Temperature -10 to 50ºC

 

Relative Humidity 95% maximum non condensing
CE Environmental European EMC Directive 2004/108/EC, Low Voltage Directive 2006/95/EC

 

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weighing indicator

Software

No relevant software available

Product order options

Please read the following before selecting the options for this product:
The SMW-HR is a PCB is a High Resolution load cell input module, Expanded RAM, CPU and 4-20mA/O – 10V Analogue Outputs which can be either ABS Cased or Din Rail mounted.
Note: * For display modules operating over 2 metres from the CPU, contact Sales Department

Starting with the Base Unit select the SMW-HR you require followed by the options you need to configure the device to meet your needs. 

Options Code
Junction Box Active JBA
Junction Box PCB (only) Active JPA
Base Unit Code
Cased PCB, LCD display (comprising UAB-EX-UAHRLC-LAC-LCD) SMW-HR/C
Din Rail mounted, seperate panel mounting, LCD, distance *2 meters (comprising UAB-EX-UAHRLC-D2-LCD-LCS) SMW-HR/D
Cased PCB separate panel mounting, back lit LCD, (comprising UAB-EX-UAHRLC-LAC-LCD/BL) SMW-HR/BL
Din Rail mounted, separate panel mounting, remote backlit LCD, distance *2 meters (comprises UAB-EX-UAHRLC-D2-LCD/BL-LCS) SMW-HR/D/BL
Inputs Code
High Resolution 19 Bit (Requires UAB15/EX) UAHRLC
Comms Code
Communications -20mA Current Loop Comms Port LC1
RS485/232 Communications supports ASCII & MANTRABUS LC3
Relay Code
Relay Output Module 2 Set Points (2 x SPCO 5A 240V AC ) LR1
Power Supplies Code
AC Power Supply 110/120V, or 220/230V AC LS1
Display Code
Display PCB for fitting to LAC, ABS Case LCD LCD
Display PCB as (LCD) above with Backlight LCD/BL
Surface Mount Display Board with Driver LCDR
Display PCB as (LCD) above with Backlight LCDR/BL
Hand Held Programmer for High Res Input Modules LP3
Mounting Enclosure Code
ABS Case prepared for PCB with front label (no PCB fitted) LAC
DIN Rail Mounting Fixture D2
Extended Mounting Code
Stainless Steel Panel for LCD LCS
Accessories Code
Junction Box PCB (only) Passive JPP
Weighing Indicator with Analogue Data & Relay Outputs

Weighing Indicator with Analogue Data & Relay Outputs

ADW15
Weighing Indicator and Controller Bulkhead Mounted

Weighing Indicator and Controller Bulkhead Mounted

SMW
Q: How long will it retain and protect my data?

A: 10 years for set values, minimum of 10,000 write cycles. 

For more 'Frequently Asked Questions' please see our Knowledge Centre

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