Omega Products JBOX-4800 User Manual
FF
SUMMING BOX/TRANSMITTER
4 TO 20 mA AND 0 TO 10 Vdc OUTPUTS
Summing Up to
4 Load Cells
with Voltage or
Current Output
JBOX-4800
$
950
⻬ Complete Strain Gage
Bridge Signal Conditioner
⻬ High-Gain, Low-Drift
Amplifier
⻬ Wide Input Range from
5 to 50 mV Full Scale
⻬ 80% Tare Offset
⻬ 3-Way Isolation
⻬ NEMA 4 (IP65) Enclosure
⻬ High/Low Setpoint-Ready
User Plug-In Relays
The JBOX-4800 is an AC- or
DC-powered summing transmitter for
up to 4 load cells, with userselectable output options of
0 to 20 mA, 4 to 20 mA, 0 to 10 Vdc,
or 2 to 10 Vdc. It has a built-in
excitation supply capable of
delivering up to 120 mA from 5 Vdc
to 10 Vdc. Three-way isolation is
standard: input to output and power.
Designed with industrial weighing
applications in mind, this J-box has
a large tare offset (80% of a 3 mV
signal @ 10V excitation). The
board is wired and socketed for
high and low setpoint/alarms. To
activate them, the user buys the
relays and plugs them in.
JBOX-4800, $950, shown
smaller than actual size.
SPECIFICATIONS
Accuracy: <±0.1%
Temperature Range:
10 to 35°C (50 to 95°F)
Total Temperature Coefficient:
0.0025%/°C typical
Isolation (AC 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 FS
Linearity: ±0.01 FS
Temp Coeff.: 0.0015%/°C typical
Input Noise: 0.1 to 10 Hz, 2 mV p-p
Tare Adjustment (3 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 4V
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: 35 ms (10 to 90%)
Bridge Supply: 5 to 10 Vdc @ 120 mA
Line Regulation: <0.01% typical
0.002%
Output Noise: <1 mVrms
120 Hz bandwidth
AC Power: 115V (90 to 130V),
230V (180 to 260V)
DC Power: 11 to 30V, 8 W
Weight: 4.7 kg (10.5 lb)
Dimensions:
NEMA 4 (IP65) Box:
254 L x 203 W x 102 mm H
(10 x 8 x 4")
Total: 318 x 229 x 112 mm
(12.5 x 9 x 4.4")
AVAILABLE FOR FAST DELIVERY!
To Order (Specify Model Number)
MODEL NO. PRICE DESCRIPTION
JBOX-4800 $950 4-input summing transmitter
Ordering Example: JBOX-4800, AC/DC-powered summing transmitter, $950.
F-18
LOAD CELLS
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