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12.4
Inputs/Outputs
Inputs
Outputs
Analog outputs
SITRANS TDL may have active or passive analog outputs, depending on the customer
requirement. Please ensure that the outputs are handled according to their type. For details,
please refer to Connecting (Page 49).
12.5
Customer interface
SITRANS TDL HMI
Connection via ethernet (RJ-45)
During operation, ambient temperature cannot exceed the values stated in the technical
specifications (Page 141). If the unit is exposed to direct solar radiation, ensure the total
temperature will not exceed the maximum permitted temperature. If these conditiions cannot
be fulfilled, a heat protection must be installed. Depending on local conditions, solutions may
range from installation of a sun shield to operating SITRANS TDL in a cabinet with controlled
environment.
12.6
Reference operating conditions
Ambient tempera‐
ture
Ambient pressure
Ambient humidity
12.7
Purging
Sensors purging flow rate
Process purging flow rate
SITRANS TDL
Operating Instructions, 05/2023, A5E51429088_AA
4 x analog input (4 – 20 mA)
4 x analog output (4 – 20 mA, isolated)
4 x digital output (isolated)
WARNING
-20 to +55ºC (-4 to +131ºF)
800 to 1200 hPa
RH < 99%, non-condensing
0.2 to 7 l/min
5 to 50 l/min for each flange
Technical specifications
Access to device via standard web browser for con‐
figuration and monitoring of parameters
12.7 Purging
143
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