Hach-Lange RTC112 SD-Module - Manual (Page 7)

7
Section 1 Technical data
These are subject to change without notice.
Embedded PC (compact industrial 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)
Interfaces 1× RJ 45 (Ethernet), 10/100 Mbit/s
Diagnostic LED
1× power, 1× LAN speed, 1× LAN activity, TC status,
1× flash access
Expansion slot 1× CompactFlash type II slot with ejector 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 inputs 0/4 to 20 mA for input of the feed flow rate and the polymer flow rate
Number of inputs
One-channel: 2 (KL3011)
Two-channel: 4 (KL3011)
Internal resistance 80 ohm + diode voltage 0.7 V
Signal current 0/4 to 20 mA
Common mode voltage (U
CM
) 35 V max.
Measurement error (for entire measurement
range)
< ± 0.3 % (from end value of measurement range)
Voltage surge resistance 35 V DC
Electrical isolation 500 V
eff
(K-bus/signal voltage)
Analog outputs Output of the polymer dosing, output of the feed flow rate
Number of outputs
One-channel: 2 (KL4012)
Two-channel: 4 (KL4012)
Supply voltage
24 V DC via the power contacts
(Alternatively, 15 V DC with bus termination KL9515)
Signal current 0/4 to 20 mA
Working resistance <500 ohm
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 Approximately 1.5 ms
Electrical isolation 500 V
eff
(K-bus/field voltage)