Equipment Specifications; Load Cell Connection; Operator Interface; Serial Communications - Agro SMART ATEX Instrucciones De Instalación Y Mantenimiento

2.9

EQUIPMENT SPECIFICATIONS

2.9.1

Load cell connection

Full scale input signal
Input impedance
Internal resolution
Measurement rate
Linearity error
Zero stability
Span stability
Excitation voltage
Transducer minimum resistance
Transducer maximum resistance
Wire length
Input overload
2.9.2

Operator interface

Main display
Keyboard
2.9.3

Serial communications

Port Tx/Rx:
Optional
Transmission rates
Number of bits and parity
2.9.4

Input/Output options

4 digital inputs
4 digital outputs
Analog output
2.9.5

Power

Power supply
Fuse
DC power supply
2.9.6

Mechanical data

Size
Weight
Mounting
SMART ATEX – INSTALLATION AND MAINTENANCE MANUAL
±3 mV/V
200 M (typical)
Converter AD 24 bits, 16700000 counts
(± 8350000)
50 measurements per second
 0,01 % of measurement level
150 nV/°C max.
3,5 ppm/°C max.
6,1 ± 0,5 VDC
85 (4 cellsx350, 8 cellsx700)
1000 k
2
400 m/mm max. (6 wires)
2
30 m/mm max. (4 wires)
± 12 V
7 digit LED 20 mm
Keyboard with 6 keys
Bi-directional RS-232C
RS-485, RS-232C only transmission
19200, 9600 and 4800 bauds
8 bits no parity, 7 bits even parity and 7 bits odd parity
V = 0,8V; V = 2V; V
ILOW IHIGH IMAX
Open collector outputs; V
OLOW
V = V – 1,2V; I = 200mA (max)
OHIGH EXT ILOW
Range V = 5V – 24V
EXT
Galvanic insulation output, 14-bits D/A
Voltage output: 0 –10,5V (nom); load > 1k
Current output: 0 – 21mA; loop resistance<500 
230 VAC ±10%, 50 Hz, 6 W max.
250 V, 100 mA slow fusion (according to IEC 60127)
7,5V ... 15VDC, nominal 12V.
External fuse 1 A (according to IEC 60127)
282 x 158 x 71 mm
1,85kg
Bench mount or bracket
= 30V
= 0,5V
2-9