X:\PmDoku\Geräte\Synmet NAV\englisch\SYNMET MANUALE 1.doc
STW Manual
Page 22 of 25
14.0 Components and technical data
of the SYNMET-system
CPU Board
The main element of the system is a powerful NEC
V25 microprocessor. This processor uses a well tried
firmware written in the Turbo Pascal high-level
language.
Maintenance and adjustment of the firmware to
future requirements can be performed quickly and
therefore in a cost-efficient way.
CPU board with measured data collection
Well tried firmware
(written in the TURBO PASCAL
high-level language)
with formula interpreter (calculated values)
Processor:
16 bit NEC V25
Clock rate:
16/8 MHz
Memory:
512 KB EPROM
8 KB EEPROM
512 KB RAM, battery buffered
Real time clock: ±30 s / month
Power consumption: approx. 1 W
Watchdog
Multilayer board with EMV layers
No potentiometers, no jumpers
Reparable IC technology (no SMD technology)
Measured value collection with precise internal
reference measurement and automatic line-up
12 analog inputs
*)
Power source: 1/10 mA
Res. meas.:
125/250/500/1250/2500/5000
Ω
Programmable differential amplifier:
50 mV/1.25 V/2.5 V/5 V/±25 mV/±2.5 V
3 digital inputs
High/low level: 0.5...50 V
Frequency:
10 kHz
Proximity switch: according to Namur
2 digital status inputs
*)
Resolution:
14 bit oversampling
Accuracy:
±0.02%
with automatic correction
Current measurement 0...20 mA: ±0.1% over internal
shunt resistors
Digital gain and filter control
for change of measuring range
