1-3
CHAPTER 1 General Description
1.3 Operating Environment
This section explains the operating environment for the GLT400.
Ambient Operating Conditions
(1) Ambient temperature and humidity (the GLT400 must be operated within the following ranges.)
• Temperature range: -20 to 60°C (Supplied AC adapter: 0 to 45°C)
• Humidity range: 5 to 85%R.H.
* When the screwless terminal (B-564SL) is connected to the GLT400, it is necessary to use it in the
environment of the GLT400.
(2) Environment (do not use in the following locations.)
• Outdoor
• A Location such as being exposed to direct sunlight
• Locations exposed to salty air, corrosive gases, or organic solvents
• Dusty locations
• Locations subject to vibration or impact
• Locations subject to voltage surge or electromagnetic interference such as lightning or electric furnaces
(3) Installation category (over-voltage category)
• The GLT400 belongs to Installation Category II defined in IEC60664-1.
• Never use the GLT400 for Installation Category III or IV.
(4) Measurement category
• The standard terminal (B-564) and screwless terminal (B-564SL) connected to the GLT400 should be
not used in Measurement Category II, III, and IV.
• The withstand high-voltage high-precision terminal (B-565) belongs to Category II. However, it should
be not use in Category III or IV.
(5) Altitude
• Altitude up to 2000 m.
(6) Mains supply voltage
• 100 to 240 VAC ±10%
(7) Pollution degree
• POLLUTION DEGREE 2 in accordance with IEC60664
● If condensation occurs...
Condensation occurs in the form of water droplets on the device surfaces and interior when the GLT400
is moved from a cold to a warm location. Using the GLT400 with condensation will cause malfunctioning.
Wait until the condensation has disappeared before turning on the power.
Warming-up Before Use
The GLT400 should be allowed to warm up with the power turned on for approximately 30 minutes to ensure
that it operates according to the specified performance.
