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.
SPECIFICATIONS Accuracy: <±0.1% Temperature Range: 10 to 35°C (50 to 95°F) Total Temperature Coef: 0.0025%/°C Typ. Isolation: ad or dc, 3-way ac to Input or Output: 750 Vac dc to Input or Output: 300 Vdc/500 pf 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)
† All dollar amounts on this site are shown in US currency.
