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Summing Box/Transmitter, 4-20 mA and 0-10 Vdc Outputs
The JBOX-4800 is an ac or dc powered summing transmitter for up to four load cells with user selectable output options of 0-20 mA, 4-20 mA, 0-10 Vdc or 2-10 Vdc. The JBOX has built-in excitation supply capable of delivering up to 120 mA from 5 Vdc to 10 Vdc. 3-way isolation is standard; input to output and power. Designed with industrial weighing applications in mind, a large tare offset is standard (80% of a 3 mV signal @ 10 V excitation). The board is wired and socketed for high and low setpoint/alarms. To activate, the user buys the relays and plugs them in.
Accuracy: Temperature Range | 10 to 35°C (50 to 95°F) |
Total Temperature Coef | 0.0025%/°C Typ. |
Isolation | 0.0025%/°C Typ. |
Amplifier | |
Input Range | 5 to 50 mV Full Scale |
Linearity | ±0.01 FS |
Temp Coef | 0.0015%/°C typ. |
Input Noise | 0.1 to 10 Hz, 2 mV p-p |
Tare Adjustment | (Three Ranges) -3 to 6.5 mV, 6.5 to 16 mV, 16 to 25 mV |
Common Mode Rejection Ratio | 100 db |
Common Mode Input Voltage | 5 Vdc |
Test Output Signal | adds 8 mA or 4 V to signal |
Loop Resistance | (Current Output) 0 to 1000 Ω |
Maximum Current Load | (Voltage Output) 5 mA |
Frequency Response | -3 db @ 10 Hz |
Response Time | (10 to 90%) 35 ms |
Bridge Supply | 5 to 10 Vdc @ 120 mA |
Line Regulation | <0.01% Typical 0.002% |
Output Noise | <1 mV rms 120 Hz Bandwidth |
AC Power | 115 V (90 to 130 V) 230 V (180 to 260 V) |
DC Power | 11 to 30 V, 8 W |
Weight | 10.5 lb (4.7 kg) |
Dimensions | NEMA-4 Box: 10 L x 8 W x 4" H (254 x 203 x 102 mm) |
Total | 12.5 x 9 x 4.4" (318 x 229 x 112 mm) |
OMEGA JBOX-4800 Summing Box/Transmitter w/Process Outputs - Data sheet 204.6 KB |
OMEGA JBOX-4800 Summing Box/Transmitter w/Process Outputs - Manual 1.2 MB |