Rice Lake Farm Bars - IQ plus 390-DC - Manual (Page 44)

40 IQ plus 390-DC Installation Manual
8.9 Specifications
Power
Power 9 VDC, provided by 6 x “C” cell alkaline batteries
or AC adapter (9VDC, 300 mA, center-positive
output connector)
Power Consumption 100 mA (using 4 x 350Ω load cells)
Analog Specifications
Full Scale Input Signal Up to 17 mV
Excitation Voltage
5 ± 0.25 VDC,
4 x 350Ω or 8 x 700Ω load cells
Sense Amplifier Differential amplifier with
4- and 6-wire sensing
Analog Signal
Input Range –2.5 mV/V – 22.5 mV/V
Analog Signal
Sensitivity 0.3 µV/graduation minimum,
1.5 µV/grad recommended
Input Impedance 200 MΩ, typical
Noise (ref to input) 0.3 µV p-p with digital filters at 4-4-4
Internal Resolution 2
20
(approx. 1 000 000) counts
Display Resolution 999 999 dd
Measurement Rate 15 measurements/sec, nominal
Input Sensitivity 155 nV per internal count
System Linearity Within 0.01% of full scale
Zero Stability 155 nV/°C, maximum
Span Stability 4.0 ppm/°C, maximum
Calibration Method Software, constants stored in
EEPROM
Common Mode
Voltage 2.5 ±.25 VDC
Common Mode
Rejection 140 dB minimum @ 50 or 60 Hz
Normal Mode
Rejection 90 dB minimum @ 50 or 60 Hz
Input Overload ± 12 V continuous, static discharge
protected
RFI Protection Signal, excitation, and sense lines
protected by capacitor bypass
Digital Specifications
Microcomputer Phillips P51XAG30 microcontroller @
12.288 MHz
Digital Filters 3 filters, software selectable
Serial Communications
EDP/Printer Port Full duplex RS-232
19 200, 9600, 4800, 2400, 1200, 600,
300 bps; 8 data bits, no parity, or 7 data
bits, even or odd parity
Operator Interface
Display 6-digit LCD display: 7-segment, 1.0 in
(25 mm) digits
Additional Symbols Annunciators for gross, net, standstill,
center of zero, tare, low battery.
annunciators for units (lb/kg), piece
count mode (PC). Adhesive labels
provided for units other than lb and kg.
Keyboard 6-key flat membrane panel
Environmental
Operating Temperature –10 to +40°C (legal);
–10 to +50°C (industrial)
Storage Temperature –25 to +70°C
Humidity 0–95% relative humidity
Altitude 2000 m (6500 ft) maximum
Enclosure
Enclosure Dimensions (including battery compartment cover)
9.0 in x 5.5 in x 4.1 in
23 cm x 14 cm x 10.4 cm
Weight 1.42 Kg (3.13 lb)
Rating/Material NEMA 4X/IP66, stainless steel
Certifications and Approvals
NTEP
CoC Number
98-203
Accuracy Class III/III L
n
max
: 10 000
n
max
: 10 000
Measurement Canada
Approval
AM-5300
Accuracy Class III n
max
: 10 000
III HD n
max
: 20 000
9.00
5.52
6.42
11.04
3.24
4.09
1.62
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