14. Declaration of conformity
14. DECLARATION OF CONFORMITY
Ahlborn Mess- und Regelungstechnik GmbH declares herewith that measuring
instrument ALMEMO
®
2450-1 carries the CE label and complies in full with the
requirements of EU directives relating to low voltage and to electromagnetic
compatibility (EMC) (89/336/EWG).
The following standards have been applied in evaluating the product.
IEC 61326:1997+A1:1998+A2:2000
IEC 61000-6-1:1997
IEC 61000-4-2: 1995+A1:1998+A2:2000 8kV
IEC 61000-6-3:1996
IEC 61000-4-4: 1995+A1:2000 2kV
IEC 61000-4-3: 1995+A1:1998+A2:2000 3V/m
If a product is modified in any manner not agreed with us in advance, this dec-
laration becomes void.
When using the sensor with an extension care must be taken to ensure that
wiring is not laid alongside or close to high-voltage power cables and that it is,
if necessary, properly shielded so as to prevent spurious interference being in-
duced in the system.
The following advisory notes must be observed when operating the device :
Using the device in strong electromagnetic fields may aggravate measuring er-
rors (<50 µV at 3 V/m and 1.5 meters thermocouple sensor). After exposure to
such irradiation ceases, the device will again operate within its technical speci-
fications.
15. APPENDIX
15.1 Technical data
Measuring inputs :
1 ALMEMO
®
socket suitable
for ALMEMO
®
connectors
Measuring channels:
maximum 3 additional channels for double sensors
and function channels
A/D converter :
Delta - sigma, 16-bit, 2.5 mops, adjustable 1 to 100
Meas. range:
see Measuring range list Chap. 10.1.2 on page 20
Some measuring ranges differ from the standard
ALMEMO
®
ranges
Sensor power supply :
9 volts, max. 150 mA (
with OA2450-U only 70 mA, 12V
)
Outputs :
2 ALMEMO
®
sockets for output modules
Option OA 2450-I
RS-485 interface, electr. isol., integrated, socket DC,
Signals :
RX+, RX-, TX+, TX-, line, maximum 1 km
Analog output, integrated:
electrically isolated, socket P0
Variants:
2450-1R02, 2450-2R02
Outputs, options:
0.00 V ...+10.0 V 0.5 mV/digit Load > 100kΩ
0.0 mA ...+20.0 mA 1 µA/digit Load < 500Ω
Accuracy:
± 0.1% of final value
28 ALMEMO
®
2450-1
(see Manual 2.3)
