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Input – Any one of the below
Current, 4 – 20 mA DC/ 0 – 20 mA DC/Others
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Input impedance
200 KΩ for Voltage, mV & T/C inputs
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Number of channels / Relays
32 Channels / 16 relays --- Ver.1
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MAPPINGS
Groups to Channel mapping
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Contact output configurations
Setpoint, Alarm type, Hysterisis – for each relay
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DATA LOGGING capacity
32 * 100 records at least
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Analog Retransmission output
Maximum 4 nos. of 4-20 mA DC / 0-10 V DC
Pantech's Programmable Universal/Predefined input Scanner, model 891 is an ideal instrument for providing indication , controlling set points for various multiple processes and logging the data in its memory bank. It is designed to accept various process inputs (Current, Voltage, RTD, and Thermocouple) simultaneously (or predefined) with facility of all inputs onboard field configuration, calibration and displaying the same. Data structures of all the channels and relays is stored inside the memory chips of instrument. These stored in data can be communicated to a higher device like a desktop through RS232/485 communications. The high end interactive software on the PC allows the user to download these days / preview them with different tabular or graphical modes etc. Two scanning modes are provided AUTO/MANUAL. It is normally designed to accept UPTO 32 different channels simultaneously. The instrument allows CHANNEL TO GROUP fixings, RELAYS to GROUP fixings . Detailed functions and configurations regarding these are explained beneath. The model is also equipped with an optional 4 analog outputs facility (Isolated or non-isolated). The model has optional in built RTC for providing timed data. The scanning time can be adjusted from 1 second to 99 seconds maximum through front keys. Unused channel SKIP facility is also provided in all versions. It can be optionally equipped with serial/parallel communication facility of different open protocols. The high end microprocessor program ensures the best and easiest possible user interactive modes. The EASE felt by the user in configuring the scanner / data logger is the real essence of product. Low drift precession components are used for long term accuracy of the instruments. All instruments undergo a burn-in for better reliability.
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Ashish Pandya (Pantech Instruments)
No. 102, Shailja Complex 2, Near R. C. Patel Estate, Akota - Padra Road, Vadodara, Gujarat - 390020, India
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