330
U8553 High Speed Voltage Unit
1. General specications
Compatible logger LR8450/LR8450-01 Memory HiLogger
Operating
environment
Indoor use, pollution degree 2, altitude up to 2000 m (6562 ft.)
Operating temperature
and humidity range
Storage temperature
and humidity range
Standards Safety: EN 61010
EMC: EN 61326, Class A
Vibration resistance
Class 1: Passenger vehicles; conditions: Class A equivalent
(4 h along X-axis and 2 h along Y- and Z-axes at a vibration acceleration of 45 m/s
2
Dimensions
Weight Approx. 237 g (8.4 oz.)
Product warranty
duration
3 years
Accessories Instruction Manual
Installation screws × 2
2. Input and measurement specications
-1. Basic specications
Number of input
channels
5 (voltage only)
Input terminals
cover
Measurement target Voltage
Input type
All channels isolated
A/D resolution 16 bits
Maximum input
voltage
±100 V DC
Maximum channel-to-
channel voltage
300 V DC
Maximum rated
terminal-to-ground
voltage
300 V AC, DC (Measurement Category II)
any two modules
Anticipated transient overvoltage: 2500 V
Input resistance 1 M
Allowable signal
source resistance
100
or less
Data refresh interval 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms, 200 ms, 500 ms, 1 s, 2 s, 5 s, 10 s
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