YOKOGAWA VZ20X, User Manual

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All Rights Reserved. Copyright © 2021, Yokogawa Electric Corporation GS 77V01B01-01EN 7th Edition 2023.02.13-00

Safety and EMC Standards
• Safety standards:
Measurement category II. overvoltage category I,
pollution degree 2
IEC 61010-1, IEC 61010-2-030 compliant
CE/Low voltage directives: EN 61010-1,
EN 61010-2-030 compliant (*1)
CSA: CAN/CSA-C22.2 No.61010-1,
CAN/CSA-C22.2 No.61010-2-030 compliant
(*2)
UL: UL 61010-1, UL 61010-2-030 (CSA NRTL/C)
compliant (*2)
• EMC standards:
CE/EMC directives:
EN 61326-1 Class A Table 2 (For use in
industrial locations) compliant (*1)
EN 55011 Class A Group1 compliant (*1)
KC marking: KS C9811, KS C9610-6-2 compliant
• CE/RoHS directives:
EN IEC 63000 (*1)
*1: Support for VZ20X style 2.01 and later.
*2: Support for VZ20X style 2.02 and later.

Power Supply Specifications
• Power supply:
Rated voltage 24 VDC (+10 %/-15 %)
USB power supply
• Power consumption:
4.5 W or less

Isolation
• Withstanding voltage:
Between analog input channels, between analog
inputs and internal circuit:
3000 V RMS (50 Hz/60 Hz), for 1 minute
• Insulation resistance
Between analog input channels, between analog
inputs and internal circuit, between Ethernet
terminal and internal circuit, between Ethernet port
1 and Ethernet port 2 terminals
20 MΩ or more, (500 V DC)
• Isolation
Analog input CH1
Ethernet
Port terminal
Analog input CH2
Analog input CH3
Internal
circuit
Ethernet
Port terminal
Analog input CH4
Analog input CH5
USB
Analog input CH6
Analog input CH7
Power supply
Analog input CH8
Non-insulated
Functional
insulation
Reinforced
insulation

Environmental Conditions
Normal operating conditions:
• Ambient temperature: DIN rail mounting -10 to
55 °C, desktop installation -10 to 50 °C
• Ambient humidity: 5 to 90 % RH (condensation not
allowed)
• Operating environment: Sites not subjected to
hydrogen sulfide and other corrosive gases, or
dust, and sites not subjected to sea breeze or
direct sunlight
• Warm-up time: 40 minutes or more after the power
is turned on
• Installation altitude: 2,000 m or less above sea level
• Installation location: Indoors
• Continuous vibration *2 : JIS C60068-2-6 compliant
(at 5 to 8.4 Hz) half amplitude of 3.5 mm or less
(at 8.4 to 150 Hz) 9.8 m/s 2 or less, 1 oct/min for 10
cycles each in the three axis directions
• Impact
*2
: JIS C60068-2-27 compliant
147 m/s 2 or less, 11 ms 3 times each in 6
directions on the three axis directions
*2: When mounting on a DIN rail, attach the fastening plate
and mount the main unit firmly so that it does not move
on the DIN rail.
Transportation and Storage Conditions:
• Temperature: -25 to 70 °C
• Humidity: 5 to 95 % RH (condensation not allowed)
Effect of Operating Conditions:
• Effect of ambient temperature:
DC voltage 1 V range or less, resistance
1x of measurement accuracy added to 10°C
change
Other than DC voltage 1 V range or less and resistance
1.2x of measurement accuracy added to 10°C
change
• Effect of power supply fluctuation: Measurement
accuracy specifications satisfied within rated
voltage range
■ Construction and Mounting
• Material: Case: Polycarbonate resin
• Case color: Black (charcoal gray, light)
• Weight: 200 g or less
• External dimensions (mm): 50 (width) x 78 (height)
x 65 (depth) (not including protrusions)
• Mounting: DIN rail *1 (in panel, on rack), desktop
installation
*1: Applicable DIN rails: TH35-7.5Al, TH35-7.5Fe (JIS C
2812 compliant)
• Mounting position: Front and back horizontal, left
and right horizontal *Stacking not allowed
• Wiring method: Main unit side: Push-in terminal
Cable side: Ferrule termina, Solid wire,
stranded wire