MAGNA Series Strain Gauge / Load Cell Input Large Digit Displays feature a signal conditioner for use with 0.5 mV / V to 4 mV / V load cells, an isolated excitation capable of powering up to four 350-ohm bridges in parallel at 10V and 120 mA, and easy scaling for display in engineering units such as lbs or kg. Standard feature include digital signal filtering with a time constant adjustable from 0 to 25 sec, selectable last-digit rounding of 1, 2, 5, 10, 20 and 50, and 10-point custom curve linearization.
Viewing distances up to 320 feet (100 m) are achieved with oversize digits. A rule of thumb is that viewing distance in feet is 40 times digit height in inches, or in metric terms, that viewing distance in meters is digit height in millimeters divided by 2.
Four digit heights are available: 57 mm (2-1/4"), 102 mm (4.0"), 150 mm (5.9"), and 200 mm (7.9"). Solid segments are used for normal brightness 2.2" and 4.0" digits. Individual 5 mm LED pixels are used for larger digits and outdoor brightness versions. The number of digits can be 4 or 6.
Indoor or Outdoor Viewing: MAGNA Series Displays with normal brightness LEDs can be read across an entire plant floor to keep workers informed without leaving their work area. Displays with outdoor brightness LEDs can be read across an industrial yard, parking lot or roadway, for example to display vehicle load. Available mounting options are panel mount, wall mount and suspension mount. Environmental sealing to IP65 (NEMA-4X) is standard.
Options include two or four 2A relays, an analog output, an RS232 or RS485 serial data output, and 95-264 Vac or 11-30 Vdc power.
Intuitive Setup is normally provided by means of built-in front panel switches, which can be locked. It is also possible to remotely wire four pushbuttons to the display.
Load cell input board
Serial data output boards
Relay output boards
Analog output boards
| Approvals | |
|---|---|
| Types | Produced to IPC 610 Class 2 Standard |
| UL ISO9001:2008 QA | |
| Strain Gauge / Load Cell Input | |
| A/D Converter | 20-bit resolution |
| Signal Gain | Suitable for 0.5 mV / V to 4 mV / V load cells |
| Input Resistance | > 10 MΩ |
| Accuracy | ± 0.05% of range. |
| Tempco, Scale | ± 25 ppm/°C |
| Tempco, Offset | ± 30 ppm/°C. |
| Excitation Output | Isolated 10V up to 120 mA to power up to four 350Ω load cells in parallel |
| Display | |
| Number of Digits | 4 or 6 |
| Digit Height | 57 mm (2-1/4"), 102 mm (4.0"), 150 mm (5.9"), or 200 mm (7.9") |
| Digit Color | Red |
| Brightness | Variable |
| Numeric Format | 8.8.8.8. or 8.8.8.8.8.8. |
| Display Update Rate | 10 readings/second |
| User Controls | |
| Scaling | Digital direct or theoretical scaling with scale & offset. |
| Filtering | Digital filtering, time constants adjustable from 0 to 25 sec. |
| Rounding | Selectable last-digit rounding of 1, 2, 5, 10, 20, 50 units. |
| Linearization | Up to 10 points, direct or theoretical calibration. |
| Logic Inputs | |
| Front Panel Controls | Four buttons to set time, date, alarms, etc. |
| Logic Functions | Three logic inputs, individually configurable for Hold, Reset, Tare, Peak / Valley, Net/Gross, Memory Address. |
| Logic Levels | Normally open, NPN or contact closure input to activate. 5V open circuit, 1 mA switched current. |
| Power | |
| AC Power (standard) | 100-240 Vac |
| DC Power (option) | 11-30 Vdc |
| Max Consumption | 30 VA |
| Analog Output Option | |
| Output Levels | 0-20 / 4-20 mA into 0 to 500Ω, 0.4 µA resolution. |
| 0-10V into loads > 600Ω, 0.2 mV resolution. | |
| -10 to +10V into loads > 600Ωs, 0.4 mV resolution. | |
| Resolution | 16 bits |
| Accuracy | 0.1% of range |
| Stability | 50 ppm/°C |
| Output Isolation | Isolated from input and power |
| Scaling | Digitally scalable |
| Special Features | Forward or reverse action possible. |
| Can be set to operate from net or gross value. | |
| Alarm Output Option | |
| Relay Type | Two or four relays rated 2A, 250VAC, SPDT |
| Special Features | Adjustable hysteresis |
| Energize or de-energize on trip. | |
| Adjustable timers to set energize and de-energize delays. Can also be set to pulse for applications needing less than 100% duty cycle. | |
| In-band and out-of-band alarm function. | |
| Manual and automatic in-flight compensation. | |
| Can be set to operate from net or gross value. | |
| Serial Data Output Option | |
| Output Types | RS232 or RS485, addressable, on demand or continuous output. |
| Special Features | Can include time and date with RTC option fitted. |
| Can be set to operate from net or gross value. | |
| Environmental | |
| Storage Temp. | -20°C to +70°C |
| Operating Temp. | 0°C to 50°C, non-condensing. -25°C to 50°C, non-condensing, with MHTR AC heater option. |
| Sealing | IP65 (NEMA4) standard, all-round |
| Mounting | Wall mount, suspension mount, panel mount |
| Display Format |  |
 |
| Case width x height | 4 Digits | 6 Digits |
|---|---|---|
| 57 mm (2.2") digits | 279 x 155 mm (11.0" x 6.1") | 376 x 155 mm (14.8" x 6.1") |
| 102 mm (4.0") digits | 434 x 196 mm (16.7" x 7.7") | 616 x 196 mm (24.3" x 7.7") |
| 150 mm (5.9") digits | 514 x 247 mm (20.2" x 9.8") | 744 x 248 mm (29.3" x 9.8") |
| 200 mm (7.9") digits | 664 x 298 mm (26.1" x 11.7") | 984 x 298 mm (38.7" x 11.7") |
| Case depth | 75 mm (3.0") | |
| Note: | Models with 57 mm (2.2") digits, 4 digits and 4 relays require the larger 6-digit case. For panel mount versions, add 18 mm (0.7") to case width and height for the bezel and 25 mm (1.0") for cable glands in back of the case. |
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