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Compact, economical & versatile. Laurel's BAR Series Bargraph Process Displays utilize a 1/8 DIN case like most digital panel meters and fit in the same 1/8 DIN size panel cutout. The bargraph is made of 30 LED elements, which can be red or green. The display can be set up with a moving dot, for example for position monitoring, or in the traditional accumulating bar format, for example to indicate tank level. Please contact Laurel Electronics for special scales for horizontally mounted displays.
Transducer excitation standard. A 15 Vdc, 30 mA transducer excitation output is standard and can eliminate the need for an external power supply.
Optional Alarms. Two 5A, 250 Vac relay outputs are optional for alarm or setpoint control. The alarms have a failsafe (de-energize on trip) changeover output and an LED to show relay status. The alarms are supplied in HI-LO format, but can easily be altered to HI-HI or LO-LO. There's also a "pump-control" mode, where the low alarm will latch, and will only reset when the input exceeds the high alarm limit.
Designed for industrial environments. These bargraph displays are highly immune to electromagnetic interference. The front panel is environmentally sealed to IP54 (NEMA-12). Laurel's Model IPC splashproof cover can extend protection to IP65 (NEMA-4). Signal connections are via detachable screw terminal connectors.
| Signal | |
|---|---|
| Input ranges | 4-20 mA, 0-20 mA, 0-10 mA, 1-5V, 0-10V, -5 to +5V |
| Specified at the time or order. | |
| Accuracy | |
| Accuracy at 25°C | 0.5% of range ± 1 segment |
| Resolution | 1 part in 30 |
| Temperature coefficient | 100 ppm / °C |
| Warm-up time | 1 minute |
| CMRR | 70 dB, DC to 450 Hz |
| NMRR | 55 dB, 50 or 60 Hz |
| Display | |
| Format | 30 LED segments with power-on indicator |
| Color | Red or green |
| Scale length | 75 mm (3.0") |
| Alarm Outputs (optional) | |
| Format | HI-LO (default), HI-HI, LO-LO, or pump control |
| Annunciation | Red LED illuminates when relay de-energizes |
| Output | Changeover, Form C, rated 5 A, 250 Vac, resistive |
| Hysteresis | ± 1% of range |
| Power Supply | |
| Voltage options | 95 to 265 Vac or 11 to 30 Vdc |
| Power consumption | 3W typ. |
| Excitation Output | |
| Voltage | 15 Vdc |
| Current | 30 mA (current limited) |
| Accuracy | ±20% |
| Mechanical | |
| Bezel dimensions | 48 x 96 mm (1.89" x 3.78"), H x W |
| Panel cutout | 45 x 92 mm (1.77" x 3.62"), H x |
| Depth behind panel | 125 mm (4.92"), including connectors |
| Width behind panel | 110 mm (4.33") |
| Weight | 300 g (11 oz) |
| Environmental | |
| Operating temperature | 0°C to 55°C (32°F to 122°F) |
| Storage temperature. | -40°C to 85°C (-40°F to 185°F) |
| Relative humidity | 0-85% RH, non-condensing |
| Case material | 94V-1, UL rated Noryl |
| Protection | NEMA-12 (IP54) when panel mounted |
| NEMA-4 (IP65) with optional IPC Splashproof cover | |
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