Waters 2489, Overview And Maintenance Manual

Page: 138 / 150

June 11, 2015, 715004752 Rev. A
Page 138
B.3 Electrical specifications
The following table lists the electrical specifications for the 2489 UV/Vis detector.
Table B–3: Electrical specifications
Attribute Specification
Protection class
a
a. Protection Class I – The insulating scheme used in the instrument to protect from electrical shock.
Class I identifies a single level of insulation between live parts (wires) and exposed conductive parts
(metal panels), in which the exposed conductive parts are connected to a grounding system. In turn, this
grounding system is connected to the third pin (ground pin) on the electrical power cord plug.
Class I
Overvoltage category
b
b. Overvoltage Category II
–
Pertains to instruments that receive their electrical power from a local level
such as an electrical wall outlet.
II
Pollution degree
c
c. Pollution Degree 2
–
A measure of pollution on electrical circuits, which may produce a reduction of
dielectric strength or surface resistivity. Degree 2 refers only to normally nonconductive pollution.
Occasionally, however, expect a temporary conductivity caused by condensation.
2
Moisture protection
d
d. Moisture Protection – Normal (IPXO) – IPXO means that no Ingress Protection against any type of
dripping or sprayed water exists. The X is a placeholder that identifies protection against dust, if
applicable.
Normal (IPXO)
Line voltages, nominal
Grounded AC
Power requirements 100 to 240 Vac nominal
Frequency 50 to 60 Hz
Fuse Two fuses:
100 to 240- Vac, 50 to 60 Hz
F 3.15-A 250-V fast blo, 5
×
20 mm
(IEC)
Power consumption 195 VA (nominal)
Attenuated analog output channel:
2 VFS
Attenuation range: 0.0001 to 4.000 AU
2-V output range: –0.1 to
+
2.1 V
Two event outputs Type: Contact closure
Voltage:
+
30 V
Current: 1 A
Four event inputs Input voltage:
+
30 V maximum
100-ms minimum period