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Robert Owen produces instruments and instrumentation, for sensor signal conditioning and trend recording.

Made in the USA!

Instrumentation Amplifiers Galvanic Isolators 
Sensor Signal Conditioning Voltage Isolation Amplifiers
ROI-XMA 4-20mA sensor transmitter, signal conditioner for temperatue measurement. With ROI-XMA 4-20mA transmitter read Thermistor Temperature Sensors with a PLC. 32 to 115 Deg F 2252 ohm NTC thermistor transmitter ROI-2252XMA32115F $210.00 US. ROI-ISOV General Purpose Isolation Amplifiers. 10V bipolar +/-15V powered 2 way isolation amplifier ROI-ISOV10 $240.00 US.
4-20mA loop transmitters are used where weak sensor signals need to be connected long distances to PLC's or USB A-D's.  Voltage isolation amplifiers used where analog signal noise suppression, ground loop elimination, or high voltage potential separation is needed.

The ROI-XMA series is a versatile family of loop powered 4-20mA transmitters with built in sensor excitation. Signal ranges can be from mV to V.

The ROI-ISOV10 is a simple to use isolated signal conditioner. Galvanic isolation accomplished via capacitive barrier.

The ROI-XMA & ROI-ISOV feature:
* Pluggable sensor Euro connectors
* Snap on base for DIN rail or surface mounting

ROI-XMA

Input sensor data, into your PLC or USB A-D; using standard:
  • 4-20mA input A-D channels. 
  • 0-20mA input A-D channels. 
  • 0-5Vdc input A-D channels. 
  • 0-10Vdc input A-D channels. 

No need to replace working sensors, you can signal condition your sensors to make them compatible with most modern industrial control systems.

Loop powered sensor 4-20mA transmitter, signal conditioner format; configured as:

  • Temperature transmitters, such as thermistor transmitters and RTD transmitters. 
  • Position transmitters, such as potentiometer transmitters.
  • mV transmitters, to be used as bridge transmitters such as pressure transmitters.

ROI-XMA 4-20mA sensor transmitter, signal conditioner for temperatue measurement. With ROI-XMA 4-20mA transmitter read Thermistor Temperature Sensors with a PLC. 32 to 115 Deg F 2252 ohm NTC thermistor transmitter ROI-2252XMA32115F $210.00 US.

The Robert Owen Inc. ROI-XMA 4-20mA sensor transmitter allows PLC Sensor Measurement. Read sensors with your PLC; using a 4-20mA sensor transmitter. 

Useful for interfacing existing HVAC and refrigeration system Thermistor Temperature Sensors and RTD Temperature Sensors with modern industrial control systems. Works with PLC's featuring 4-20mA transmitter inputs. With ROI-XMA; you can use 10K ohm thermistors and 2252 ohm thermistors, either PTC or NTC, or the popular 100 ohm RTD or 1000 ohm RTD, with standard industrial PLC's and industrial I/O.

ROI-ISOV

The ROI-ISOV10 is a simple to use isolated signal conditioner. 
  • Input and output sections powered by separate supplies.
  • Galvanic isolation accomplished via capacitive barrier.
  • Isolation level: 1.5Kv

 

  • USED IN LOOP ISOLATION

  • GROUND LOOP ELIMINATION

  • SIGNAL ISOLATION

ROI-ISOV General Purpose Isolation Amplifiers. 10V bipolar +/-15V powered 2 way isolation amplifier ROI-ISOV10 $240.00 US.

High voltage measurement is easily & safely accomplished; when isolation amplifiers are added, to the input connections of a data converter. 

When measured using voltage dividers alone; the possibility is always present, that improper grounding can result in equipment damage. The addition of isolation amplifiers to the plan, provides hundreds of volts of protection to the system, & the added benefit of ground loop elimination. 

Isolation amplifiers protect the sensing equipment in those applications that need it, allowing an application to meet requirements with an added level of protection.

 

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Robert Owen Inc.
PO Box 227
Albertson, NY 11507
Phone 516-629-5134 Fax 516-706-1705

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