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48
590 AG Indicator Operators Manual
8.8
Specifications
Power
Power
9 VDC, provided by 6 x “C” cell alkaline batteries or
AC adapter (9VDC, 300 mA, center-positive output
connector)
Power
<100 mA (using 4 x 350
load cells)
Consumption
Fusing
200 mA, self-resetting thermal fuse
Analog Specifications
Full Scale Input Signal Up to 17 mV
Excitation Voltage
5
0.25 VDC,
4 x 350
or 8 x 700
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
V/graduation minimum,
1.5
V/grad recommended
Input Impedance
200 M
, typical
Noise (ref to input)
0.3
V p-p with digital filters at 4-4-4
Internal Resolution
2
20
(approx. 1 000 000) counts
Display Resolution
100 000 dd
Measurement Rate
Up to 30 measurements/sec
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
19200, 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), group
mode (group). Adhesive labels provided
for units other than lb and kg.
Keyboard
19-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 6.5 in x 3.0 in
23 cm x 16.5 cm x 7.6 cm
Shipping Weight
6.5 lb (2.95 Kg)
Rating/Material
NEMA 4X/IP66, stainless steel
Certifications and Approvals
NTEP
CoC Number
98-203A2
Accuracy Class
III/IIIL
n
max
: 10 000
Measurement Canada
Approval
AM-5300
Accuracy Class
III
n
max
: 10 000
III HD
n
max
: 20 000
T
D I G I T A L W E I G H T I N D I C A T O R
4
9
0
8
5
2
7
6
3
CLEAR
DISPLAY
TARE
ZERO
GROSS
NET
TARE
UNITS
T
B/G
Units
POWER
ENTER
SAMPLE
MODE
I / O
lb
kg
PC
11.0
9.0
6.5
7.5
1.6
3.0
3.2
4.1
t
N
A
T
IO
NA
L CONFE
R
E
N
C
E
t
O
N
W
E
I G
H
T S
A N D M
E
A
S
U
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Содержание 590 AG
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