Endress+Hauser memo-graph Version II Betriebsanleitung Seite 99

Base accuracy 0.25 % FSD +/- 1 digit
Maximum
allowable
Channel to channel: DC 60 V, AC 60 Vp (only safe low voltages)
potential
difference
Presettable time constant: 0...999.9 Seconds, per analogue
Damping
input, System base damping: can be ignored
To IEC 654-1: B2
Ambient temperature: 0...+50 °C
Climatic Storage temperature: -20 ...+70 °C Rel.
Humidity: 10...75 % r.H., without condensation
max. water content: 0.02 kg / kg dry air
Surrounding
0.25 % / 10 K
temp. influences
EN 50081-1, EN 50081-2,
NAMUR recommendation NE21:
- ESD (electrostatic discharge): EN 61000-4-2 Level 3 (6/8 kV)
- Electromagnetic fields: ENV 50140 / ENV 50204:
Level 3 3 (10 V/m) for standard inputs;
Level 2 (3 V/m) for measurement ranges < 1V or
EMC/immunity RTD/thermo-couple
- Burst (electrical fast transients): EN 61000-4-4 Level 4 (2/4 kV)
- Surge: EN 61000-4-5: 2 kV unsymmetrical, 1 kV symmetrical
- Surge (HF discharge): EN 61000-4-6: 10 V for standard inputs;
3 V for measurement ranges < 1 V or RTD/thermo-couples
- 50 Hz Magnet fields EN 61000-4-8: 30 A/m
- Power failures EN 61000-4-11: < = 20 ms
Normal mode
40 dB at input range/10 (50/60 Hz +/- 0.5 Hz),
noise rejection
not on resistance measurement
DIN IEC 770
Common mode
noise rejection 80 dB at 60 Vp (50/60 Hz +/- 0.5 Hz)
DIN IEC 770
To EN 55011: 1991 Group 1 Class A
RF protection
(Operation in industrial environment)
STN colour graphic display with 145 mm screen diagonal ( 5.7"),
Display
76,800 dots (320 x 240 pixel)
8 groups of 8 Channels (analogue, mathematically calculated
Signal groups
and digital inputs)
Curves/plot sequences, curves in individual zones,
columns/bargraph, digital display, event list (alarms/power
failures), actual value display, historical display in plot form with
Display modes display of numeric values, date and time; signal analysis (min.-,
max.-, average, quantities, times)
Channel identification by colour and text measurement point tag
name
9. Technical data
Technical data
(continued)
Influencing effects
Display
97