2
DEVICE DESCRIPTION
10
OPTISWIRL 4200
www.krohne.com
08/2016 - 4005002601- AD OPTISWIRL4200 Ex-II2GD R01
The permitted ambient temperature range is indicated on the nameplate; depending on the
device version it is T
amb
= -40...+65
°
C / -40...+149
°
F.
The minimum product temperature is -40
°
C / -40
°
F.
When using in zone 21, observe the maximum permissible product and ambient temperatures
for temperature class 2 and the information for use of a heat-resistant connecting cable and
cable entry.
INFORMATION!
The maximum permissible product temperatures listed in the tables are valid under
the following conditions:
•
The measuring device is installed and operated in accordance with the manufacturer's
installation instructions.
•
It must be ensured that the flowmeter is not heated by the effects of additional heat radiation
(sunshine, neighbouring system components) and thus operated above the permissible
ambient temperature range.
•
Insulation must be limited to the piping. Unobstructed ventilation of the signal converter
must be ensured.