AD-4430B
- 7 -
3.
Specifications
3.1.
Analog Part (Load cell Input, A/D Converter)
Input sensitivity
0.15
µ
V/d or greater (d = minimum division)
Input voltage range
-
35 mV to
+
35 mV (
-
7 to
+
7 mV/V)
Zero range
-
35 mV to
+
35 mV (
-
7 to
+
7 mV/V)
Load cell excitation voltage
(Load cell drive capacity)
5 VDC
±
5%, 60 mA with remote sensing capability
(Maximum 4 x 350
Ω
load cells)
Temperature coefficient
Zero
±
0.02
μV/
°C Typ.
±
0.1
μV/
°C Max.
Span
±
3 ppm/°C Typ.
±
15 ppm/°C Max.
Non-Linearity
0.005% of full scale Max.
A/D conversion method
Delta-sigma method
A/D resolution count
Approximately 16,000,000 counts
Display resolution
99,999 d Max. (d = minimum division)
Sampling rate
1000 times/second
3.2.
Display And Keys
Display element Measurement display 5 - digit 7-segment green LED
Status indicators
6 red LEDs
Measurement
display
Numerical display
Switches between NET and GROSS
Decimal point
Selectable decimal places (10
1
, 10
2
, 10
3
, 10
4
)
Overflow display
All the digits turn OFF. (When the polarity is negative,
the minus sign appears at the highest-order digit.)
Status indicators
: GROSS, : NET, : HOLD, : STABLE, : ZERO,
: Selectable from the function list of X display (
).
Key switches
/
ESC
, (ZERO), (TARE),
3.3.
General
3.3.1.
Interface
BCD Output
MDR connector 36pins female type
BCD Output And I/O Output
I/O Input
Output circuit
Open collector transistor
Input circuit
DC contact input
Isolation
Photo coupler
Open voltage
Approx. 5 V
Output current
50 mA Max.
OFF current
0.1 mA Max.
Saturation voltage 0.5V Max. @50 mA
ON current
2 mA Min.
Threshold voltage
2V
Chattering suppression time 10 msec.
