Measuring section
Error limit
Accuracy class 0.5 according to DIN 43782/IEC 484 for
basic unit 0...5 mV Meßabweichung
Measuring ranges
Via range box type Arucomp 4900/EK-Ex at rear of unit
Incremental error
without zero shift
0.2 % of span
with zero shift
0.3 / of span
zero shift
≥ 1 mA
including temperature effect
0.2 % / 10 K
Re = 20 k
Ω/V at leat 20 kΩ
Thermometer current Ith
≤ 1 mA
Lead balancing for mV in range 0...40
Ω unnecessary
For
Ω in 3-wire circuit necessary
For
Ω in two-wire circuit of 10 Ω; 0.1 % external
Reference junction
Optionally external or built into range box.
Caution!
Note temperature difference between terminals and range
box
Measuring range limit data
Current measurement
Ie max.
± 50 mA; Ie min. ± 0.1 mA
Span
min. 0.1 mA; max. 100 mA
Re
≤
7
I
(mA)
[
Ω]
Voltage measurement
–25 V DC...+25 V DC
Span
min. 5 mV DC; max. 25 V DC
Re 20 k
Ω/V; jedoch min. 20 kΩ
Zero shift with constant current source
± 600 % of selected span (max. 6/7 of upper range value)
Resistance measurement
Scale span
min. 8
Ω; max. 500 Ω
Circuit designation
Direct voltage and thermocouples with external reference
junction
without zero shift circuit
measuring circuit W 21
with zero elevation
W 22 K
with zero suppression
W 23 K
Resistance measurement
Resistance thermometer
in 2-wire circuit
W 24 K
in 3-wire circuit
W 25 K
Resistance teletransmitter in 3-wire circuit
W 26 K
Current measurement
without zero shift
W 28
with zero elevation
W 27 K
with zero suppression
W 28 K
Continuous overload capacity of signal inputs
± 25 V
electrical motor current switched off at –0.5 % and 100.5 %
Recording section
Scale
interchangeable for all measuring ranges with either 1...6
graduated scales or single scale strips with one graduated
scale each
Scale type
No. of
graduated scales
1
2
3
4,5
5,5
6,5
single scale
Digit size
(mm)
6
5
3
2.5
2,5
2,5
3
Size of main
graduations
8
6
4
3,5
2.5
1.8
3
Colour sequence
Violet, red, black, green, blue, brown (DIN 43 838)
Last point visible form front
ink supply for 5
× 105 dots per colour
Drive
Common synchronous motor for chart drive, measuring
point selector switch and print head
Dotting rate
5/10/20 s selectable
Chart drive
10/20/60/120 mm/h selectable
Recording width
100 mm (chart width 120 mm) to DIN 16 230
Chart length
Roll chart 32 m (approx 66 days at 20 mm/h)
Fanfold chart 16 m (approx 33 days at 20 mm/h)
Chart feed-in
Automatic (roll chart)
Power supply
24 V or 115 V or 230 V; 50 Hz or 60 Hz
Tolerated temperature deviation +10 %, –15 %
Typical power consumption approx. 8 VA
General and safety data
Environmental capabilities
Ambient temperature
0...25...50
°C
Transport and storage temperature
–25...+70
°C
Climatic category
KWE to DIN 40 040
Technical data
Functional diagram
K
C
M
M
D
K+
-
+
-
+
-
62
61
63
Pos.6
K
K
C
M
M
D
+
-
+
-
+
-
12
11
13
Pos.1
K
K
C
M
M
D
+
-
+
-
+
-
Pos.7
901
801
S2
S1
S4
S3
0...5mV
M
MS
IK
12
NL1 PE
10, 20,
60, 120 mm/h
K+
K
-
C+
M
-
M+
D
-
K+
K
-
C+
M
-
M+
D
-
a
b
Z-14901
Multipoint Recorder Arucomp EK-Ex. A
Data Sheet
40-1.10 EN
Page 2 of 6
01.97
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