YOKOGAWA UT320 - Page 17

<Toc> <1. Installation>
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IM 05D01D02-41E 1st Edition : May 31,2000-00
Environmental Conditions
• Normal operating conditions:
Ambient temperature: 0 to 50C (40C or less for side-by-side close installation)
The operating ambient temperature range is between 0C and 40C when the 24 V
DC loop power supply of the UT320 is used.
Temperature change rate: 10C/h or less
Ambient humidity: 20 to 90% RH (no condensation allowed)
Magnetic field: 400 A/m or less
Continuous vibration at 5 to 14 Hz: Full amplitude of 1.2 mm or less
Continuous vibration at 14 to 150 Hz: 4.9 m/s
2
or less
Short-period vibration: 14.7 m/s
2
, 15 seconds or less
Shock: 14.7 m/s
2
or less, 11 ms
Installation height: Height above sea level of 2000 m or less
Warm-up time: 30 minutes or more after power on
• Transportation and storage conditions:
Temperature: -25 to 70C
Temperature change rate: 20C/h or less
Humidity: 5 to 95% RH (no condensation allowed)
• Effects of changes in operating conditions
- Effects from changes in ambient temperature:
- On voltage or thermocouple input, 1 V/C or 0.01% of F.S./C,
whichever is larger
- On RTD input, 0.05C/C (ambient temperature) or less
- On analog output, 0.05% of F.S./C or less
- Effects from power supply fluctuation (within rated voltage range)
- On analog input, 1 V/10 V or 0.01% of F.S./10 V, whichever is
larger
- On analog output, 0.05% of F.S./10 V or less