SCT-30 Signal Conditioning Transmitter and Signal Indicator
Maximum Control, Miniature Size
For PLC systems that require weight data from a scale, Rice Lake’s compact SCT-30 transmitter delivers equivalent signal-conditioning function without the cost or bulk of a full-size weight indicator/controller. Rice Lake's SCT-30 models are DIN-rail mountable within a cabinet or control panel, where they convert a scale’s load cell signal to serial or analog output. Technicians and operators find the analog output signal particularly useful for monitoring hopper filling and discharge. Unlike many other signal transmitters, Rice Lake SCTs have their own integrated display, with annunciators for unit and weighing status, and push buttons or toggle switch and digital rotary for zero, tare and setpoint entry—ultimately simplifying scale setup, calibration and operation.
Features
LCD display, 5 mm, eight digits
Powers up to eight (350 ohm) load cells in parallel (with a 24-bit A/D converter)
A/D converter 24-bit 4.8 kHz
16-bit analog output: 0-20 mA, 4-20 mA, 0-5 V, 0-10 V, ±5 V, and ±10 V
Mounting on Omega/DIN rail for back panel or junction box
IP67-rated enclosed versions
Diagnostic message for load cell disconnect and over capacity errors
Specifications
Power:
Input: 12 -24 VDC
Power consumption: 3 watts
Excitation Voltage:
5VDC, 120mA, 8 x 350Ω
Analog Signal Input Range:
+/- 39mV
Analog Signal Sensitivity:
0.1 µV/graduation minimum
1.0 µV/graduation recommended
A/D Sample Rate:
300 Hz
Resolution:
Internal resolution: 16 million counts
System linearity: ± 0.01% full scale
Serial Port:
RS-485
Analog Output:
Optoisolated, 16 bit
0-20mA, 4-20mA (max 300 ohm)
0-10VDC, 0-5VDC (min 10k ohm)
Display:
Eight-digit alphanumeric tow line LCD, 5 mm high
Keyboard:
Control knob and DIP switches
Temperature & Humidity:
Working Temperature: -4°F to 140°F (-20°C to 60°C)
Humidity: 85% non-condensing
Dimensions (W x H x D):
SCT converter: 3.54 x 3.74 x 2.36 in
(90 x 95 x 60 mm)
IP67 enclosure: 6.69 x 5.51 x 3.74 in
(170 x 140 x 95 mm)
Weight:
1 lb (0.5 kg)
Rating/Material:
DIN rail mount: NEMA Type 1
Sealed enclosure: NEMA Type 4/IP67, plastic enclousre, clear cover, six PG9 cord grips
Warranty:
One-year limited warranty