B.3 30-cm CH electrical specifications
Attribute Specification
Pollution degree
a
2
Moisture protection
b
Normal (IPXO)
Line voltages, nominal dc
Voltage range 24 V
Frequency 0 Hz
Maximum power draw 50 W
a. Pollution Degree 2 – A measure of pollution on electrical circuits that can 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.
b. 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.
B.4 30-cm CHC electrical specifications
Attribute Specification
Protection class
a
Class I
Overvoltage category
b
II
Pollution degree
c
2
Moisture protection
d
Normal (IPXO)
Line voltages, nominal Grounded AC
Power requirements 100–240 Vac
Line frequency 50–60 Hz
Power consumption 240 VA
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.
b. Overvoltage Category II – Pertains to instruments that receive their electrical power from a local level such as an electrical
wall outlet.
c. Pollution Degree 2 – A measure of pollution on electrical circuits that can 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.
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.
December 5, 2017, 715004751 Rev. C
Page 77
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