Your Source for Process Measurement & Control
DRF-LC Load Cell Input Signal Conditioner
- For Load Cells with 1 mV/V, 2 mV/V
and 3 mV/V Output
- Full Scale at 10 mV, 20 mV and 30 mV
- Pre-tare Jumpers at 50%, 25% and 0%
- Accuracy 0.2%
- Response Time < 75 ms
- Galvanic Isolation between Input, Output and Power
Description The DRF series DIN rail signal conditioners aredesigned to accept a broad range of input signals,such as ac and dc voltage and current, frequency,temperature (thermocouple and RTD), and processtransducers, and provide standard process outputsof either 4 to 20 mA, or 0 to 10 Vdc. The DRF seriesfeature a modern housing design, that is easilymounted on standard 35 mm DIN rails. Connectionsare safely and securely made through pluggablescrew terminal connectors, with input and outputconnections on the opposite sides of the module.
The DRF-LC signal conditioner accepts a load cell inputand provides an isolated 0 to 10 Vdc or 4 to 20 mAoutput. Models are available with three different poweroptions, 24 Vdc, 120 Vac and 240 Vac.
The DRF-LC are ideally suited for industrialapplications. The DRF-LC feature galvanic isolation between input,output and power up to 3500 Veff (model specific).Module response time is 75 ms or less.
The FAR-1 power supply is an ideal companion product for the DRF-LC. It provides a regulated 10Vdc outputthat may be used to power up to 4 load cells.
Range Code Table
|10MV||0 to 10 mV|
|20MV||0 to 20 mV|
|30MV||0 to 30 mV|
Accuracy: <0.2% full scale
Linearity: <<0.1% full scale
Thermal Drift: 250 ppm/°C typical (max <200ppm/°C)
Response Time: <75 mS (90% of signal)
Bandwith: 20 Hz (-3dB)
Pretare: 50%, 25% and 0% by jumpers
Impedance: 5 M Ω
Over Range Protection: 15 V max differential input
Power: 24 Vdc ±10%, 230 Vac ±10% 50/60 Hz,115 Vac ±10% 50/60 Hz
Power Consumption: <3.8 VA
Output: 4 to 20 mA and 0 to 10 Vdc
Maximum Voltage Output: 11 Vdc approx.
Minimum Voltage Output: -1 Vdc approx.
Minimum Load Resistance (Voltage): >1 KΩMaximum Current Output: 22 mA approx.
Maximum Current Output: -1.5 mA approx.
Maximum Load Resistance (current): >400 Ω
Electrical Connections: Plug-in screw terminals
(DC Powered Models): 120 g (4.2 oz)
(AC Powered Models): 200 g (7 oz)
(DC Powered models):
110 H x 22.5 W x 93 mm D (4.3 x 0.9 x 3.7")
(AC Powered models):
110 H x 37 W x 93 mm D (4.3 x 1.46 x 3.7")
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)
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