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LCA15 Intelligent Load Cell Amplifier
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Features
- Variable gain Strain Gauge sensitivity from 0.5 to 200mV/V
- Simple one pass Auto Calibration
- Auto Tare
- 4-20mA and 0-10V outputs
- 10V @ 160mA excitation to drive up to 6/350 ohm Strain Gauges
- High accuracy
- Low drift
- Wide range of power supplies
- IP65 surface mounting case
- Isolated analogue outputs
- 10 years data retention
- Digital programming, calibration & display
The LCA15 intelligent Strain Gauge amplifier offers both 4 to 20mA and 0 to 10 volt analogue outputs, from any standard Strain Gauge input. 1 pass calibration and setting of the analogue output range, make the unit extremely user friendly; being set up by a simple hand held or on board programmer/display. Auto Tare and Peak Hold (if set) on the analogue output are operated via volt free contact closures.
Output options include:- Relay Set Points Programmed in engineering units, with In Flight compensation and Hysteresis settings are available for control or alarm purposes.
Communications:- To read any value, change set points or any other parameter via:
RS232/RS485 (RC3) - Formats include MANTRABUS, ASCII, MODBUS RTU
The RS232 output can be configured to provide a printer output. Activated by a contact closure, displays the current live value, with header message, engineering units, auto incrementing batch number and a real time if required.
Options:- 9-32V DC power supply (LS3), Stainless Steel case sealed to IP65 (LSS), Available without its case as a separate Eurocard PCB assembly (LCB)
Specification
Inputs |
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| Speed | 10 readings per second with a digital filter to reduce speed. |
| Accuracy/Repeatability | Up to 90 days ± 0.08% of reading, ± 0.05% FSD typical |
| Drift | Up to 0.002% per degree C @ 2.5mV/V typical |
| Resolution | 15 bit (4.5 digits) |
| Contact inputs | Available for auto tare, print and peak hold reset (volt free). |
Analogue Outputs |
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| 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 |
Options Available |
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| 2 set points | Output through 5A, 230V ac SPCO relays (volt free contacts with latching and inversion options |
| Communications Port | 20mA loop - enabling up to 254 to be multi dropped to 1 x RS232 via IF25 interface |
| RS485 - enabling up to 32 units to be multi dropped (isolated) | |
| RS232 - for 1 to 1 connection and standard printer drive (isolated) | |
| Baud Rates - 300, 600, 1200, 2400, 4800, 9600 (19200 MANTRABUS only) | |
| Die Cast Case | Sealed to IP65 with external dimensions of220 x 120 x 80mm max |
| Stainless Steel Case | Sealed to IP65, with external dimensions of224 x 160 x 90mm |
| PCB Only (Eurocard) (LCB) | 100 x 160 X 57mm for rack or customers enclosureDC Powering 9-32V dc |
Data Retention/Protection |
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| Retention | 10 years for set up values, minimum of 100,000 write cycle |
| Protection of data and function(s) Watchdog timer givingrepeat auto resets. | |
| Impending power detection and hold off. | |
| Keypad security and time out. | |
CE & Environmental |
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| Storage temperature | -20 to +70ºC |
| Operating temperature | -10 to 50°C |
| Relative humidity | 95% maximum non condensing |
| Safety/Low Voltage Directive | 2006/95/EC |
| EMC Directive | 2004/108/EC |
Physical |
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| PCB Case Dimensions | 120 x 200 x 75mm (without glands, see diagram below) |
| Case Material | ABS |
Dimensions
Downloads
Click here to download - LCA15 Datasheet
Click here to download - LCA15 Instruction Manual
Click here to download - LCA15F Instruction Manual
Suggested Instrumentation
Options
There are currently no options available to view from this page. To view the various input and output options available for the LCA15, please view the LCA15 product datasheet by clicking here.
Applications
- Vessel weighing
- Silo weighing
- Batch control
- Crane overload protection/weighing
- Force measurement
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