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A-14
IM 39J06B40-01EN 14th Edition: May 30, 2022
A2. Installation Environment

Installation Specifications and Precautions
The conditions of the installation location must be appropriate for stable operation of the
system.
The table below shows the conditions required for the installation location (and some
conditions for transportation and storage) of DTSXL System.
Table Installation Environment Specification of DTSXL System (*1)
Item Specifications
Ambient
temperature
Operation -40 to +65 °C (*2)
Transportation/storage -40 to +70 °C
Ambient humidity
Operation 20 to 80 % RH (no condensation)
Transportation/storage 5 to 85 % RH (no condensation)
Rate of change in
temperature
Operation Within ±10 °C/h
Transportation/storage Within ±20 °C/h
Dust 0.3 mg/m 3 or less
Protection class IP20
Resistance to corrosive gases
ANSI/ISA S71.04 Class G2 (Standard) (ANSI/ISA
S71.04 Class G3, option)
Resistance to vibration 0.15 mm P-P (5 to 58 Hz), 1 G (58 to 150 Hz)
Resistance to shock
15 G, 11 ms (during power-off, for sine half-waves
in XYZ-directions)
Altitude 3000 m or less (*3)
Noise
Electric field 10 V/m or less (26 MHz to 1 GHz)
Magnetic field 30 A/m (AC) or less, 400 A/m (DC) or less
Electrostatic discharge
4 kV or less contact discharge, 8 kV or less aerial
discharge
Grounding 100 Ω or less (*4)
Cooling Natural air cooling
*1: Not applicable to DTFB10. Refer to GS 39J06Z40-01EN “DTSXL Distributed Temperature Sensor Long Range
System (for SMF)” in the case of specification of DTSXL for single mode fiber.
*2: 0 to +55 °C when power supply module NFPW441, NFPW442, or NFPW444 is used.
*3: 2000 m or less when power supply module NFPW441, NFPW442, or NFPW444 is used.
*4: Applicable to DTSBM10.
CAUTION
- The unit must be placed in a lockable metal cabinet to comply with standards.
- The temperature specification during operation indicates the criterion of the
temperature at the air intake of the bottom portion of modules. Do not block
ventilation holes, as it may hinder the air-cooling capabilities of the unit. When
installing DTSX3000 in a cabinet, note that the temperature specification is not with
respect to the ambient temperature of the cabinet. Provide cooling fans in the
cabinet if needed.
- Avoid exposing DTSX3000 to direct sunlight.
- Prevent condensation under any circumstance.
- The dust level of the room should not exceed 0.3 mg/m
3 . Under any circumstance,
avoid iron flakes, carbon particles, or any other type of dust that are conductive.
- Avoid existence of corrosive gases such as hydrogen sulfide, sulfurous acid gas,
chlorine, and ammonia.
- This instrument is designed for indoor use.
- For outdoor installation within a cabinet (such as RTU), use a rainproof cabinet of
IP54 class or higher protection rating.