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User’s Guide
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e-mail: info@omega.com
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DRF-POT FOR
POTENTIOMETER INPUT,
DRF-RES FOR RESISTANCE INPUT
DRF Series Signal Conditioners
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® OMEGAnet On-Line Service Internet e-mail omega.com info@omega.com Servicing North America: Canada: U.S.A.: ISO 9001 Certified 976 Bergar One Omega Drive, Box 4047 Laval (Quebec) H7L 5A1, Canada Stamford, CT 06907-0047 Tel: (514) 856-6928 Tel: (203) 359-1660 FAX: (514) 856-6886 FAX: (203) 359-7700 e-mail: info@omega.ca e-mail: info@omega.com For immediate technical or application assistance: U.S.A. and Canada: Mexico: ~ ® Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA En Espanol: (001) 203-359
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User’s Manual DRF Series INDEX GENERAL INFORMATION.................................................. 4 QUICK GUIDE .................................................................... 5 POWER SUPPLY CONNECTIONS ................ 5 SIGNAL ADJUSTMENT .................................. 6 and 7 DIMENSIONS AND CONNECTIONS .............. 8 TECHNICAL DATA .............................................................. 9 INPUT SIGNAL ............................................... 9 OUTPUT SIGNAL ........
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User’s Manual DRF Series GENERAL INFORMATION The DRF series of Isolated Signal Converters, allow to convert process The isolation offered by the DRF series signals, temperatures, electrical signals, of Isolated Signal Converters is a 3 way etc, to current loops or voltage signals for isolation. Thus, all the benefits exposed further retransmision, while introducing above are applicable to any of the three into the system galvanic isolation barriers circuits composing the instrument : input, bet
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User’s Manual DRF Series QUICK GUIDE The DRF units have a front cover which can be opened down. This cover gives access to the Span and Offset potentiometers, and to the selection jumpers for input and output signal ranges. To open the front cover, press slightly the sides of the cover at the upper side, close to the OUTPUT terminals, as indicated on Figure1. The cover is free to open down, as shown on Figure2. POWER SUPPLY CONNECTIONS FIGURE1 FRONT VIEW WITH COVER DRF units are powered through
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User’s Manual DRF Series SIGNAL ADJUSTMENT To proceed to adjust a range of input and which include your desired adjustment. output signals, first select with the Then proceed to the adjustment. appropriate jumpers, the signal ranges Selection Jumpers : Output Signal Range S ELECTION JUMPERS OUTPUT SIGNAL SPAN P OTENTIOMETER O FFSET POTENTIOMETER 0/20mA 0/10Vdc 0/1Vdc (4/20mA) S ELECTION JUMPERS I NPUT SIGNAL Selection Jumpers : Input Signal Range (See next page) FIGURE 3 F RONT VIEW WITHOUT COVE
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User’s Manual DRF Series SELECTION JUMPERS : I NPUT SIGNAL RANGE DRF-POT for POTENTIOMETER SIGNALS Range : 100% FS Range : 25% FS Range : 12.5% FS Range : 50% FS DRF-RES for RESISTANCE SIGNALS Range : 10 KOhms Range : 3 KOhms Range Min : 5 KOhms Range Min : 1.5 KOhms Range : 1.5 KOhms Range : 5 KOhms Range Min : 750 Ohms Range Min : 3 KOhms Page 7
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User’s Manual DRF Series DIMENSIONS AND CONNECTIONS 9mm (0.35’’) Output Connections 93mm (3.66’’) Input Connections 22,5mm (0.89’’) POTENTIOMETER RESISTANCE Special Width for ~ 24 Vdc AC Power models AC Powered DC Powered 0 Vdc ~ 110 mm (4.33’’) 37mm (1.46’’) Page 8
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User’s Manual DRF Series TECHNICAL DATA : Models DRF-POT and DRF-RES INPUT SIGNAL for POTENTIOMETER RANGES 0/100 % Standard DIN rail mounting, as specified 0/50 % on DIN46277 and DIN EN 50022 0/25 % 37.5 x 7.5 mm (1.38 x 0.3 ´´) 0/12.5% (minimum 8%) GALVANIC ISOLATION LEVELS DC Units Potentiometer value min 100Ohms Input - Output 3.5 KV (60 seconds) max 1MOhm Power-Input 3.5 KV (60 seconds) 3 Wire System, 1 Vdc Excitation Power- Output 1 KV (60 seconds) INPUT SIGNAL in RESISTANCE AC Unit
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User’s Manual DRF Series CAUTIONS, WARNINGS AND NOTES INSTALATION PRECAUTIONS.- The installation and the fields, such as power relays, electrical future use of this unit engines, speed regulators, etc. Do not must be done by qualified use until installation is completed. personnel. The unit has not AC (mains) switch, POWER SUPPLY.- The power supply must neither internal protection fuse. It will be in be connected to the adequate terminals 1, operation as soon as power is connected. 2 and 3. The
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WARRANTY/ DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department
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Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at omega.com TEMPERATURE DATA ACQUISITION Thermocouple, RTD & Thermistor Data Acquisition & Engineering Probes, Connectors, Panels & Software Assemblies Communications-Based Acquisition Wire: Thermocouple, RTD & Thermistor Systems Calibrators & Ice Point References Plug-in Cards for Apple, IBM & Recorders, Controllers & Process Compatibles Monitors Datalogging Systems
