Hach-Lange WTOS P-RTC - Manual (Page 5)

5
Section 1 Specifications
Subject to change without notice.
Industrial Personal Computer (IPC), (Embedded PC)
Processor Pentium ®1 , MMX compatible, 500 MHz clock rate
Flash memory 2 GB compact flash card
Internal working memory 256 MB DDR-RAM (not expandable)
Interface RJ 45 (Ethernet), 10/100 MBit/s
Diagnostic LEDs Power, LAN speed, LAN activity, TC status, flash access
Expansion slot Compact flash type II slot with ejection mechanism
Clock
Internal, battery-buffered clock for time and date (battery can be
replaced)
Operating system Microsoft Windows ®2 CE or Microsoft Windows Embedded Standard
Control software TwinCAT PLC Runtime or TwinCAT NC PTP Runtime
System bus 16 Bit ISA (PC/104 standard)
Power supply Via system bus (through power supply module CX1100-0002)
Max. power loss 6 W (including the system interfaces CX1010-N0xx)
Analog input 4–20 mA for flow rate measurement
Internal resistance 80 Ohm × diode voltage 0.7 V
Signal current 0–20 mA
Common mode voltage (U
CM
) 35 V max.
Measurement error (for entire measurement
range)
< ± 0.3 % (from measurement range end value)
Electrical surge resistance 35 VDC
Electrical isolation 500 V
eff
(K-bus/signal voltage)
Analog output 4–20 mA for dosing pump
Number of outputs 1
Power supply
24 V DC via power contacts
(alternatively 15 V DC with bus terminal KL9515)
Signal current 0–20 mA
Working resistance < 500 Ω
Measurement error
± 0.5 LSB linearity error
± 0.5 LSB offset error
± 0.1, % (relative to the measuring range end value)
Resolution 12 bit
Conversion time ~ 1.5 ms
Electrical isolation 500 V
eff
(K-bus/signal voltage)