EXFO FTB-2 - Manual (Page 28)

Safety Information
18 FTB-2 and FTB-2 Pro
Electrical Safety Information
Equipment Ratings
Temperature

Operation

unit powered by batteries: 0 °C to 50 °C (32 °F to
122 °F)
a,b

unit connected to AC adapter : 0 °C to 40 °C (32 °F to
104 °F)
a. When the unit is used at an altitude of 5000 m, the maximum operating temperature is 32 °C (89.6 °F)
b. Operating time is dependent upon power consumption and temperature. If the unit is used at maximum
power and maximum temperature, it will power off automatically any time after 10 minutes for safety
reasons.

Storage

unit without batteries: –40 °C to 70 °C (–40 °F to
158 °F)

unit with batteries: –20 °C to 60 °C (–4 °F to 140 °F)
Relative humidity
c
c. Measured in 0 °C to 31 °C (32 °F to 87.8 °F) range, decreasing linearly to 50 % at 40 °C (104 °F).

unit:  95 % non-condensing

AC adapter: 10 % to 80 % non-condensing
Maximum operation altitude

2000 m (6562 ft) (unit connected to external power
supply)

5000 m (16405 ft) (unit operated from batteries)
Pollution degree

2 (unit connected to external power supply)

3 (unit operated from batteries)
d
d. Equipment must be normally protected against exposure to direct sunlight, precipitation and full wind
pressure.
Overvoltage category

unit: I

AC adapter: II
Measurement category Not rated for measurement categories II, III, or IV
Input power
e
e. Not exceeding ± 10 % of the nominal voltage.

unit (FTB-2): 24 V; 3.75 A

unit (FTB-2 Pro): 24 V; 8.33 A

AC adapter: 100 - 240 V; 50/60 Hz; 4 A