Strain Gauge / Loadcell Panel Meter
4 Alarm Outputs Standard, RS-485 Serial Communications Input/Output Standard, Analogue Output Option
A competitively priced, fully programmable Strain Gauge / Loadcell panel meter suitable for Loadcells with a typical sensitivity of 2mv/V and for high sensitivity applications. It features a fully scaleable 5 digit bi-colour LED display across the range -9999 to +99999. 4 alarm output options are fitted as standard where the display changes colour in the alarm condition if programmed to do so. Analogue output via an external isolator is an option (consult sales office) and serial communications RS-485 input and output is fitted as standard.
Excitation
For high accuracy (6 wire) and Intrinsically Safe applications use a BASEEFA Certified isolator, consult sales office.
Display Colour Selection
The display may be programmed to be
- RED ONLY
- GREEN ONLY
- RED (normal) to GREEN (in alarm)
- GREEN (normal) to RED (in alarm)
Standard features
- Display range -9999 to +99999 scaleable
- Display colour change in alarm state
- Span and Tare
- Input +/- 50mV for maximum reading of -9999 to +99999
- Serial Communications RS-485 (programmable) send, broadcast, receive
- 4 Programmable alarm outputs
- Programmable decimal point position
- Programmable display blanking
- Programmable last digit filter 1, 5, 10, 25, 50
- Excitation for field transmitters 15V @ 35mA
- IP65 / NEMA 4 front panel protection
- CE approved, UL Pending
4 Alarm Outputs
4 alarm outputs are available via N/O 3 A relays. The alarms are fully scaleable and independent of one another and may be set for HI or LO trip. The alarms can be programmed to energise or de-energise in the alarm state, open / close or latch and have independent variable hysteresis, time delay trip response adjustable 0-250 seconds. In the alarm state the display will change colour if programmed to do so.
Serial Input / Output (fitted as standard)
Up to 31 units may be multi-dropped. The displayed value can be uploaded or downloaded from a PC via an RS-485 port. One unit can also be programmed as a 'master' with the remaining multi-dropped units acting as 'slaves'.
Analogue Output Option
Isolated 4-20mA or 0-10V, for an assigned zero and span can be supplied as an output option.
| Description | Data |
|---|---|
| Display | 5 digit seven segment LED 14.2mm high Display changes colour in alarm state |
| A to D Converter | Accuracy +/- 0.02% of range |
| Communications | RS-485 |
| Alarm output | 4 N/0 3A relay @ 250Vac |
| Analogue output | External Isolator 4-20mA, 0-10V |
| Scaling/Calibration | Decimal point in resistance mode |
| Accuracy | < +/- 0.005% (+/- 1 digit) |
| Input bias current | < 0. 1 micro amps |
| Zero drift (0-50C) | +/- 0.0025% / C of range +/- 1 digit |
| Span drift (0-50C) | +/- 0.01% / C of reading +/- 1 digit |
| Ripple rejection | < 2 digits with 1/4 mV PK to PK ripple @ 50/60 hz |
| Step Response | 2 secs to 95% of final value |
| Power Supply | 85-265Vac or 18-30 Vac/dc < 5VA consumption |
| Environmental | Operating temperature 0-50 C Storage -40 to + 85 C |
| Case size | H x 48, W x 96, D x 132mm including connectors |
| Panel cutout | 91 x 44.5mm |
Anything we can tell you about our Large Digit Strain / Load cell Input Displays:
Tel: 01462 670566 or Email: info@eaglecontrols.co.uk