Technical Data - Endress+Hauser mini-log b version II Manuel De Mise En Service

12. Technical data

Application Application
Equipment
Operation and Principle
system
construction
Measurement
system
Interface
Inputs Input
Number of inputs Analogue input: 1
Accuracy Analogue input
Digital input
Temperature
influence
Time drift
Measured value collector for recording and storing
analogue and digital values
Data-logger
Measured value recording using analogue/digital
conversion. The measured values are updated every
second and, after a selectable storage cycle time, are
stored in an internal memory, which can store 16000
measured values (optionally 64000 measured values).
Number of events: Approx 1000 events (32 k) or
4000 event (128 k) can be stored. Simultaneous
recording of integrated values is not possible.
Selectable operating modes: Continuously or only on
set point infringement.
Data can be transferred to a Personal Computer
using the software package. This means the data can
then be processed further.
Analogue: Data-logger and separate 0/4 to 20 mA,
0 to 1 V and Pt100 transmitter
Digital: Data-logger and potential free contact
RS 232 max. cable length 8 m,
a complete RS 232 interface cable 1.5 m long is
optionally available, PC software package is delivered
Universal application
analogue: transmitter must have 0/4 to 20 mA,
0 to 1 V output signal or direct Pt100
digital: potential free contact or 5 VDC TTL peak
Note: The Datalogger has no loop power supply;
Power supply minus, GND connetion (pin 4) of the
interface, analogue input minus (terminal 1) and
terminal 5 of the digital input are internally connected.
Digital input: 1
≥ 1 MOhm
0 to 1 V, R
i
Accuracy ± 0.25 % FSD
0/4 mA to 20 mA,via shunt, R
Cable open circuit monitor < 2 mA (on 4 to 20 mA)
Accuracy ± 0.25 % FSD
Pt100, -100 to +400 °C, screened cable
Accuracy ± 0.5 °C, Cable open circuit monitor
1 input with two terminals, fmax = 25 Hz on impulse,
1 s on event inputs; for potential free contacts.
Temperature drift ± 0.25 % / 10 K
± 50 ppm (≤ 30 min/year)
12. Technical data
= 50 Ohm
i
49