Endress+Hauser RTA421 - Technical Data - Installation and Operation; Installation and Environmental Conditions; Construction and Display Features; Operational Parameters and Settings

Application
conditions
Mechanical
construction
Display and
operating level
Alarm set point
function
Installation conditions
Installation angle No limitation
Ambient conditions
Ambient
temperature
- 20 °C..+ 70 °C
Storage temp. - 20 °C..+ 70 °C
Climatic class To IEC 60 654-1 Class B3
Protection IP 20
Electrical
security
Environment < 2000 m altitude
EMC / immunity
Norm To IEC 61326, Class A (industral environment)
Safety
Norm To IEC 61010-1
Over voltage category II,
Installation area excessive current system ≤ 10 A
Construction Top hat DIN rail mounting to IEC 60715 TH 35
housing
Dimensions H: 110 mm, W: 45 mm, D: 112 mm
Weight approx. 150 g
Materials Housing: Plastic PC/ABS, UL 94V0
Electrical
connection
Keyed, plug on screw terminals, size up to 2.5 mm²
Display Operation, 1 x green (2.0 mm)
LED: Fault condition, 1 x red (2.0 mm)
Alarm set point, 2 x yellow (2.0 mm)
LC display:
Numeric display: 4 x 7 segment (6 mm)
Alarm set point condition: 2 x channel number,
4 x 1 segment
Bargraph: 10 x 1 segment
Display range 2 x 0 to 99 %
Operation 3 push button operation (-/+/E)
Mode Minimum, maximum
Switch threshold 00 to 99 %
Hysteresis 01 to 100 %
Time del
ay 00
to 99 s
Reaction time 0.4 s
Contactor
43