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CD Start Page | DATA ACQUISITION ONLINE Page | DATA ACQUISITION PRODUCTS Page |
The OM5 is designed to provide easy and convenient solutions to signal conditioning problems of both designers and end users in measurement and control applications. Typical uses include mini- and microcomputer-based measurement systems, standard data acquisition systems, recorders, and dedicated control systems. The OM5 is ideally suited to applications where monitoring and control of temperature, pressure, flow and other analog signals is required
Isolated Voltage Input Models
Designed for either low-level millivolt or high level voltage inputs, these modules can accept from ▒10 mV to ▒10 V full scale input, with either a 0 to 5 V or ▒5 V output. Standard modules have a 4 Hz bandwidth, while for interfacing to dynamic signals, the OM5-WV and OM5-WMV modules feature a 10 kHz bandwidth.
Current Input Models
These modules accept process current signals. A sensing resistor of 20 ohms is used to convert the signal current to a voltage. The resistor is installed as a separate assembly, to facilitate replacement in the event of inadvertent connection of the power line.
Thermocouple Input Models
The isolated thermocouple models incorporate cold junction compensation circuitry which provides 0.5íC accuracy. Open sensor detection is standard.
RTD Input Models
The OM5-IP, OM5-IC and OM5-IN are designed for 100╜ PT, 10╜ Cu and 120╜ Ni RTDs respectively. The modules have 3 wire compensation and may be used with 2- or 3-wire RTDs. The OM5-IP4 features 4-wire compensation for 100╜ PT RTDs.
Strain Gage Input Models
Designed for 300 to 10 kohm full or half strain gage bridge for dynamic signals. Bandwidth is 10 kHz. Integral 10 V excitation is also provided.
Potentiometer Input Models
For use with 3-wire potentiometers and 2-wire slidewire with up to 10 K╜ resistance. The input signal is filtered, isolated and amplified to a high level analog output voltage.
Excitation is provided by two matched current sources which cancels lead resistance effects in 3-wire potentiometers. The excitation current is small
(less than 1.0 mA) to minimize self-heating error.
Displacement Transducer Input Modules
The displacement transducer input modules can interface to DC displacement transducers and other devices which require a precision excitation voltage. The transducer excitation is provided from the module by a stable isolated 10 V source.
Two-Wire Transmitter Interface Modules
The OM5-TX are ideal for connecting to 2-wire loop power transmitters. The modules accept 4-20 mA process current input and provide an isolated output voltage. The module features an isolated 20 Vdc regulated power supply to provide power to the transmitter. A precision 20 ohm current conversion resistor is supplied with each module.
Output Models
Isolated modules that accept process voltage inputs from the system connector and provide an isolated process current signal as output
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