DYNISCO UPR800 Series Instruction Manual
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2.6 Primary & Secondary Analog Inputs Common
Common Mode Rejection Ratio:
>120dB @50/60Hz
Normal Mode Rejection Ratio:
>60dB @ 50/60Hz
Strain gage input
: From 340 to 5000
K
, 1-4 mV/V. Excitation 10V +/- 7%. 5 wires
connection.
Input signal
: -25/125% of full scale (approximately -10/50mV).
Shunt calibration
: With or without shunt resistor (value programmable from 40.0 to
100.0%), the same setting will be used for both inputs (main and secondary) when the
differential pressure measurement is selected.
Zero balance
: +/- 25% of full scale (approxi/- 10mV).
Reference accuracy
: +/- 0.1% FSV +/-1 digit @ 25 +/- 1°C and nominal power supply
voltage.
Operative accuracy
: temperature drift:
•
< 200 ppm/K of full span (RJ excluded) for TC input.
•
< 300 ppm/K of full span for current, voltage and strain gage input.
•
< 400 ppm/K of full span for RTD input.
•
< 0.1K/K for reference junction.
Zero and span calibration
: If differential input used, there is no relation between the
calibration of the two single sensors; each input is provided with its own zero and span
calibration parameters.
Wiring caution
: The analog input lines cannot exceed the 30 meter length or leave the
building.
2.7 Digital Input Specification
Digital input:
One input from contact closure (voltage free). It may be keyboard
programmable for the following functions:
•
Alarm reset
•
Peak reset
•
Alarm and peak reset
NOTE:
This input is not isolated from primary input. A double or reinforced insulation
between instrument output and power supply must be guaranteed by the external device.
2.8 Alarms
Alarm Outputs:
2 standard alarms (AL1 and AL2). 1 optional alarm (AL3).
