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DIN Rail Mount Configurable Signal Conditioners
DRF Series
PLACE ORDER - Voltage, Current, Frequency, Resistance, Potentiometer, Thermocouple, RTD and Load Cell Input Modules
- Field Configurable Signal Ranges
- Provides up to 3500 Veff Isolation Between Input and Output and Power (Isolation is Model Specific)
- Compatible with Standard 35 mm DIN Rail
Description
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.
Functionality
The DRF series are designed to maximize functionality.The front door of the housing provides easy access tospan and offset potentiometers which may be used tofield adjust the input and output
signal range.
Isolation
The input, output and power circuits are isolated by3500 volts of galvanic isolation. The isolation protectsagainst potentially damaging voltages from passingthrough the signal conditioners into connected systems.The isolation also provides improved measurementaccuracy by minimizing the effects of ground loops andelectrical noise.
Outputs
Each DRF series signal conditioner is available withcurrent and voltage output (only one may be used at atime). Available output types include 4 to 20 mA or 0 to10 Vdc. Although pre-configured before shipping fromthe factory, the output may be changed through aninternal jumper change.
Standard outputs are linear and proportional to thesignal input. Thermocouple input modules featurespecial circuitry to linearize the output to the actualtemperature rather than the non-linear signal producedby thermocouple sensors.
For Ordering details and technical information on specific models please see the Related Links section below.
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SPECIFICATIONS
Common to all Models)
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 K Ω
Maximum Current Output: 22 mA approx.
Maximum Current Output: -1.5 mA approx.
Maximum Load Resistance (current): =400 Ω
Accuracy: <0.2% or <0.3% depending on model
Linearity: <0.1% or <0.2% depending on model
Thermal Drift: <150 ppm/°C or 250 ppm/°C typicaldepending on model
Response Time: 70 mS (Process and DC inputmodels); 250 mS (Temperature and AC input models)
Isolation*:
Input to Output: 3500 Veff;
Power to Input: 3500 Veff;
Power to Output: 3500 Veff (for ac powered models),1K Veff (for dc powered models)
*tested True RMS, 60 sec. leak <1 mA
Electrical Connections: Plug-in screw terminals
Protection: IP-30
MECHANICAL DIMENSIONS
Weight:
(DC Powered): 120 g (4.2 oz)
(AC Powered): 200 g (7 oz)
Dimensions:
(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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