316
U8551 Universal 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
Standard compliance Thermocouples: JIS C1602:2015, IEC 60584-1:2013
Resistance temperature detector (Pt100, Pt1000): JIS C1604:2013, IEC 60751:2008
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. 318 g (11.2 oz.)
Product warranty
duration
3 years
Accessories Instruction Manual
Installation screws × 2
Options Z2000 Humidity Sensor
2. Input, output, and measurement specications
-1. Basic specications
Number of input
channels
15 (Set voltage, thermocouple, humidity, resistance temperature detector, or resistor for
each channel.)
Input terminals
cover
Measurement target Voltage
Humidity (using the Z2000 Humidity Sensor)
Resistance temperature detector (Pt100, Jpt100, Pt1000)
(Connection: 3-wire/4-wire)
(During Pt1000 measurement, setting available when the data refresh interval is
greater than 100 ms.)
Input type
All channels isolated (The SoL terminals used to connect resistance temperature
detectors and resistors are not isolated as they are shorted for all channels internally.)
A/D resolution 16 bits
Maximum input
voltage
±100 V DC
Maximum channel-to-
channel voltage
300
V DC (The SoL terminals used to connect resistance temperature detectors and
resistors are not isolated as they are shorted for all channels internally.)
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