P142
Operating instructions level transmitter
TECHNICAL DATA
Measuring range
Pressure range
Output
Analog output
Power supply
20 mA output
Signal characteristics
Accuracy
Long term stability
Response time
Swich-on time
Temperature coefficient
Zero
Span
Temperature ranges
Medium temperature
Storage temperature
Electrical protections
Short-circuit resistance
Reverse polarity protection
Electromagnetic compatibility
Wetted materials
Housing
Sensor
Surroundings
Protection type
Exemplary weight
P142-EHB1-1005-160 (figure p. 1)
Nöding Messtechnik GmbH • Oldenfelder Bogen 29 • D-22143 Hamburg, Germany • Tel.: +49 40 67 58 51 – 0
Fax: +49 40 67 58 51 – 49 • Internet: www.noeding-messtechnik.de • E-mail: info@noeding-messtechnik.de
See table „ Measuring ranges"
others on request
4...20 mA 2-wires
12...30 V DC
≤ ± 0,25 % FS @ 25 °C
≤ ± 0,5 % FS @ 25 °C at pressure range ≤ 250 mbar
≤ ± 0,2 % FS / Y ear
200 ms - others on request
< 1 s
≤ ± 0,02 % FS / Kelvin (≤ 250 mbar ≤ ± 0,04 %)
≤ ± 0,02 % FS / Kelvin
-20...100 °C EX ia IIC T4 Ga
-20...80 °C
Permanent
Protection against reverse polarity, but no function
Interference emissions and immunity acc. to EN 61326
CrNi steel 1.4571
CrNi steel 1.4571
IP 68
Approx. 700 g
ELECTRICAL CONNECTION
4...20 mA, 2-wires
red
black
shield
U = 12...30 V DC
4...20 mA, 2-wires and Pt 100 / Pt 1000
temperature sensor, 3 wires
white
yellow
blue
red
black
shield
U = 12...30 V DC
Electrical characteristics
for explosion protection
Pressure signal:
Temperature signal:
Ui ≤ 30 V
Ui ≤ 20 V
Ii ≤ 150 mA
Ii ≤ 320 mA
Pi ≤ 700 mW
Pi ≤ 100 mW
LOAD
R
/ Ω
B
900
12V
EN
4...20 mA
4...20 mA
u
B
30V