Rice Lake 880 Performance Series Indicator/Controller Operators Manual - Manual (Page 32)

Appendix 28
3.2 Specifications
Power
Line Voltages Input Voltage – 100-240VAC, 9-36VDC
Input Frequency – 47-63Hz
Power Consumption AC: 15 watts
DC: 20 watts
Analog Specifications
Full Scale Input Signal -45 mV to +45 mV
Excitation Voltage
10 VDC ±,
8 x 350
 or 16 x 700 load cells
Sense Amplifier Differential amplifier with
4- and 6-wire sensing
Analog Signal Input Range -45 mV to 45mV
Analog Signal Sensitivity:
0.3 μV/graduation minimum @ 7.5 Hz
1.0 μV/graduation typical @ 120 Hz
4.0 μV/graduation typical @ 960 Hz
A/D Sample Rate: 7.5 – 960Hz, software selectable
Input Impedance 200 M
, typical
Noise (Usable Minimum
LSB)
0.3
V p-p
Internal Resolution 8 000 000 counts @ 23 usable bits, approximate
Display Resolution 100 000 dd
Input Sensitivity 10 nV per internal count
System Linearity ±0.01% of full scale
Temperature
Zero ±150 nV/°C, maximum
Span ±3.5 ppm/°C, maximum
Calibration Method Software, constants stored in EEPROM
Common Mode Voltage ±0.8V in unbalanced condition
Common Mode Rejection120 dB minimum @ 50 or 60 Hz
Input Overload ± 12 V continuous, static discharge protected
EMI/RFI Protection Signal, excitation, and sense lines protected by capacitor bypass
and filtering elements
Optional Analog
Output
Fully isolated, voltage or current output
Voltage output: 0 –10 VDC
Load resistance:1k
 minimum
Current output: 0-20 mA or 4–20 mA
External loop resistance: 500
 maximum
Digital I/O
I/O Channels Up to 4, 5V/TTL, Active Low (0V), each software configurable as
input or output
Relay Supply Voltage 5 VDC, 500mA maximum
Input Voltage
0–5.5V maximum
Digital Outputs Active low, sink up to 24mA per output.