Frequency Input Signal Conditioner

DRF-FR

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NPN, PNP, NAMUR, Voltage Pulse, Voltage AC (up to 200 Vac)
Frequency Signals from 10 Hz up to 50 KHz
Accuracy 0.2%
Excitation Voltage 15 Vdc (20 mA) or 9V2 for NAMUR
Galvanic Isolation between Input, Output and Power
Part of a Comprehensive Family of Signal Conditioners

Signal Conditioners - View related products

Description

Find how signal conditioning works on this link.

The DRF series DIN rail signal conditioners are designed to accept a broad range of input signals, such as ac and dc voltage and current, frequency, temperature (thermocouple and RTD), and process transducers, and provide standard process outputs of either 4 to 20 mA, or 0 to 10 Vdc. The DRF series feature a modern housing design, that is easily mounted on standard 35 mm DIN rails. Connections are safely and securely made through pluggable screw terminal connectors, with input and output connections on the opposite sides of the module.

The DRF-FR signal conditioner accepts a frequency input and provides an isolated 0 to 10 Vdc or 4 to 20 mA output. Models are available with three different power options, 24 Vdc, 115 Vac and 230 Vac.

The DRF-FR are ideally suited for industrial applications. All models mount on a standard 35mm DIN rail and provide galvanic isolation between input, output and power up to 3500 Veff . Module response time is 250 ms or less.

Adjustable Input Ranges
The front door of the housing provides easy access span and offset potentiometers which may be used to field adjust the input and output signal range. The ranges shown in the Range Table below are supported.

Range Code	Range
20HZ	0 to 20 Hz
40HZ	0 to 40 Hz
60HZ	0 to 60 Hz
100HZ	0 to 100 Hz
200HZ	0 to 200 Hz
300HZ	0 to 300 Hz
500HZ	0 to 500 Hz
1KHZ	0 to 1 KHz

Range Code	Range
2KHZ	0 to 2 KHz
3KHZ	0 to 3 KHz
5KHZ	0 to 5 KHz
10KHZ	0 to 10 KHz
20KHZ	0 to 20 KHz
30KHZ	0 to 30 KHz
50KHZ	0 to 50 KHz

Isolation
The input, output and power circuits are isolated by 3500 volts of galvanic isolation. The isolation protects against potentially damaging voltages from passing through the signal conditioners into connected systems. The isolation also provides improved measurement accuracy by minimising the effects of ground loops and electrical noise.

Outputs
Each DRF series signal conditioner is available with current and voltage output (only one may be used at a time). Available output types include 4 to 20 mA or 0 to 10 Vdc. Although pre-configured before shipping from the factory, the output may be changed through an internal jumper change. Standard outputs are linear and proportional to the signal input.

SPECIFICATIONS

Signal Type: NPN, PNP, NAMUR, Voltage Pulse, AC up to 200 Vac (2 ranges < 24 Vac and < 200 Vac)
Accuracy: <0.2% full scale
Linearity: <0.1% full scale
Thermal Drift: 250 ppm/°C typical (max <200ppm/°C)

Response Time
0 to 100 Hz: <300 mS (90% of signal)
0 to 500 Hz: <250 mS (90% of signal)
0 to 5 KHz: <200 mS (90% of signal)
0 to 50 KHz: <150 mS (90% of signal)

Impedance
Voltage Input:
(<24 Vac Range): 100 KΩ
Voltage Input: (<200 Vac Range): 1 M
PNP and NPN Input: 10 KΩ
NAMUR Input: 1 KΩ

Over Range Protection
Voltage Input (<24 Vac Range): 75 V
Voltage Input (<200V ac Range): 300 V
PNP and NPN Input: 35 V
NAMUR Input: Always powered by 9V2

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 KΩ Maximum Current Output: 22 mA approx.
Maximum Current Output: -1.5 mA approx.
Maximum Load Resistance (current): >400 Ω
Electrical Connections: Plug-in screw terminals
Protection: IP-30

MECHANICAL DIMENSIONS
Weight:
(DC Powered Models): 120 g (4.2 oz)
(AC Powered Models): 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)

Place Order(Specify Model Number)

Part Number/ Desc.

Qty

Description

Below are examples of popular models. Use the Part Number Builder to order a specific model.

DRF-FR-24VDC-100HZ-4/20

£209.41

Availability: In Stock

Frequency signal conditioner with 24Vdc power, 0-100Hz input range and 4-20mA output

DRF-FR-24VDC-300HZ-4/20

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Availability:

Frequency signal conditioner with 24Vdc power, 0-300Hz input range and 4-20mA output

DRF-FR-115VAC-300HZ-4/20

Consult Sales

Availability:

Frequency signal conditioner with 115Vac power, 0-300Hz input range and 4-20mA output

DRF-FR-115VAC-10KHZ-4/20

Consult Sales

Availability:

Frequency signal conditioner with 115Vac power, 0-10KHz input range and 4-20mA output

DRF-FR-230VAC-100HZ-4/20

Consult Sales

Availability:

Frequency signal conditioner with 230Vac power, 0-100Hz input range and 4-20mA output

DRF-FR-230VAC-300HZ-4/20

Consult Sales

Availability:

Frequency signal conditioner with 230Vac power, 0-300Hz input range and 4-20mA output

† All amounts shown in EUR, GBP, or USD
Note: All models come with a complete user's manual.

Part Number Builder

Build Your Part Number Below

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DRF-FR-		-		-

Option Descriptions:

(1) Power select from:
24VDC for 24 Vdc
230VAC for 230 Vac
115VAC for 115 Vac

(2) Input Range select from:
20HZ for 0 to 20 Hz
40HZ for 0 to 40 Hz
60HZ for 0 to 60 Hz
100HZ for 0 to 100 Hz
200HZ for 0 to 200 Hz
300HZ for 0 to 300 Hz
500HZ for 0 to 500 Hz
1KHZ for 0 to 1000 Hz
1KHZ for 0 to 1 KHz
2KHZ for 0 to 2 KHz
3KHZ for 0 to 3 KHz
5KHZ for 0 to 5 KHz
10KHZ for 0 to 10 KHz
20KHZ for 0 to 20 KHz
30KHZ for 0 to 30 KHz
50KHZ for 0 to 50 KHz

(3) Output select from:
4/20 for 4 to 20ma
0/10 for 0 to 10Vdc

Note: All combinations may not be valid, check spec sheet for valid part numbers.