Power Supply; Environment - Endress+Hauser Flowphant T DTT31 Flowphant T DTT35 Operating Instructions Manual

Technical data
Sensor breakage; sensor
short-circuit
Switch outputs
11.1.2 Switching capacity
DC voltage version:
Switch status ON
Switch status OFF
Switching cycles
Voltage drop PNP
Overload protection
11.2

Power supply

11.2.1 Supply voltage
DC voltage version: 18 to 30 V
Behavior in the event of overvoltage (>30 V)
• The device works continuously up to 34 V
• No damage in event of transient overvoltage up to 1 kV (according to EN 61000-4-5)
• If the supply voltage is exceeded, the specified characteristics are no longer guaranteed
Behavior in the event of undervoltage
If the supply voltage falls below the minimum value, the device switches off in a defined
manner (status as if not supplied with power = switch open)
11.2.2 Current consumption
< 100 mA (no-load) at 24 V
11.3

Environment

11.3.1 Ambient temperature range
–40 to +85 °C (–40 to +185 °F)
11.3.2 Storage temperature
–40 to +85 °C (–40 to +185 °F)
36
≤3.6 mA or ≥ 21.0 mA (output 21.7 mA is guaranteed for setting ≥ 21.0 mA)
In the safe state (switch open)
Ia ≤ 250 mA
Ia ≤ 1 mA
> 10,000,000
≤2 V
Switching current checked automatically; switched off in event of overcurrent,
switching current checked again every 0.5 s; max. capacitive load: 14 µF for max.
supply voltage (without resistive load); periodic disconnection from a protective
circuit in event of overcurrent (f = 2 Hz) and "Warning" displayed
(reverse polarity protection)
DC
without any damage
DC
, max. 150 mA (no-load); with reverse polarity protection
DC
Flowphant T DTT31, DTT35
Endress+Hauser