Omega Engineering M2525/0201 DRN-PR Process Input, Input Ranges, Excitation, Input Impedance

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DRN-PR

PROCESS INPUT

General Description:

The DRN Series of DIN rail-mountable signal conditioners are available for Thermocouple, RTD, Strain, Process, AC Voltage, AC Current and Pulse/Totalizer input types.

The factory calibrated signal conditioners are ideal for all process and power monitoring applications, they feature 3- way isolation, high accuracy input, programmable outputs, and are excellent front end interfaces for programmable logic controllers or data acquisition systems. For maximum user configurability the signal conditioners allow complete input- output scaling via a RS-232 connection to any PC or PLC.

Software Description:

The signal conditioner configuration program is a MS DOS/Windows program (this manual is for the Windows version). It is designed especially for the DRN Series Signal Conditioner. This program will run on any PC with Windows application and will start automatically.

Free Serial Communication software and ActiveX Controls

are on the CD-ROM enclosed with this shipment.

To download the latest software release (or request a free CD-ROM) please go to: www.omega.com/software

What You need:

¥Your choice of the signal conditioner ¥IBM PC or compatible

¥Windows software 3.1 or higher, or Windows 95/98 ¥RJ12 connector with telephone cable

¥Adapter (DB9 or DB25 to RJ12)

Setting up your System

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INPUT RANGES:

±20mA; ±400mV, ±1V, ±2V, ±5V, and ±10V Ratiometric or nonratiometric

EXCITATION:

14V or 10V @ 25mA

INPUT IMPEDANCE:

Voltage Range: 1M½

Current Range: 10½

ISOLATION:

Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage. Three way Isolation:

¥Power to input

¥Power to analog output/communication

¥Input to analog output/communication

COMMON MODE REJECTION: 100dB

INPUT OVER-RANGE PROTECTION:

Voltage input: 50V

Current input: 50mA

MODE:

Linear, Square root, Linear totalize,

Square root totalize

ANALOG TO DIGITAL TECHNIQUE:

Multiple slopes

READ RATE:

8 readings/second, automatic polarity

ACCURACY AT 25 ¡C:

±0.1% of FS ± 2 counts

TEMPERATURE STABILITY:

100 ppm/¡C typical

STEP RESPONSE FOR RS232 OUTPUT: 2 seconds to 99% of the final value (Filter time constant = 64)

RESPONSE TIME:

To verify the response time, check the carriage return <CR>, it will be sent at the end of the response. You can send another command after you receive the <CR>.

i.e. send: *X01 response: X01<DATA><CR>

WARM UP TO RATED ACCURACY: 30 minutes

ANALOG OUTPUT SIGNAL TYPE:

Voltage: 0-10 Volt, maximum current 10mA

Current: 0-20 mA or 4-20 mA, maximum compliance voltage 10 Volts (maximum loop resistance 500½)

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ANALOG OUTPUT LINEARITY:

0.1% of FS

ANALOG OUTPUT STEP RESPONSE TIME: 2 seconds to 99% of final value

INPUT POWER:

10 to 32 Volt DC

POWER CONSUMPTION:

3 watts (125 mA at 24Vdc)

OPERATING AMBIENT: -5 to +55 ¡C

STORAGE TEMPERATURE: -40 to +85 ¡C

RELATIVE HUMIDITY: 90% at 40 ¡C non-condensing

DIMENSIONS:

Introduction:

The Process input signal conditioners are high performance instruments that measure DC currents/voltages in 6 ranges which are as follows: ±20mA; ±400mV, ±1Volt, ±2Volts,

±5Volts, and ±10Volts. Key features of the signal conditioners are operation in linear or square root and process totalize modes, scalable analog output and a simple RS232 interface for scaling analog output and range selection. The RS232 interface may also be used for digital transmission of input signal to a computer or a PLC. Additional features include three way isolation between DC power, signal input and analog output/RS232.

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SIGNAL INPUT
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