Dimensions
Length: 90 mm
Diameter: 22 mm
Accuracy
Pressure Sensor
0.05 %FS
Accuracy
Temperature Sensor
0.5 °C or 0.1 °C
PR (relative pressure)
0.3
1
3
10
30 (2)
PAA (absolute pressure)
–
0.8…2.4
0.8…4
0.8…11
0.8…31 (2)
Water column in m approx.
3
10
30
100
300
Overload Resistance
max. 300%
Technology
oil-filled, insulated, piezo resistive pressure transducer in a metallic casing
Resolution
typ. 5 ppm (corresponds to 0.0005 %FS)
Accuracy 3) 5)
± 0.02 %FS max.
(0.3 bar Range: ± 0.04 %FS)
Comp. temp. range
0…50 °C
Total error band 4) 5)
± 0.1 %FS max.
(0.3 bar Range: ± 0.2 %FS)
Operating temperature 5)
-20…80 °C
Int. measuring rate (adjustable)
120, 240 (default), 480 Hz
Long-term stability
ranges > 1 bar: ± 0.1 %FS max.
ranges <e; 1 bar: ± mbar max.
Degree of dependency on location
± 1.5 mbar max
Measuring range
-10…80 °C
Technology
Silicon (pressure measuring bridge, TOB6)), optional Pt1000
Accuracy
silicon sensor: typ. ± 0.3 °C
Pt1000 sensor: ± 0.1 °C max.
Int. measurement rate
12 Hz TOB only 6), 6 Hz Pt1000 without conductivity, 1 Hz Pt1000 with conductivity
Supply voltage
with extended lightning protection
3.2…32 VDC
4.5…32 VDC
Power consumption
without conductivity
with conductivity
< 6 mA (active) 7), < 14 mA (active) 7)
Start-up time P1, TOB1
P1, T, Con
< 300 ms
3 s typ.,6 s max
Insulation GND-CASE
> 10 MΩ @ 300 V
Endurance
> mio. pressure cycles
0…100 %FS @ 25 °C
Storage temperature
-20…+80 °C
Digital Interface (RS485)
Communication protocol
Modbus RTU
KELLER Bus
Baud rate
9600*, 115,200 bit/s
Identification
Class. Group: 5.21
Unit of conductivity
mS/cm
Weight
ca. 150 g excl. cable (CTD ca. 300 g)
Housing material
stainless steel 316L (DIN 1.4435 / 1.4404)
Cable material
PR: polyethylene (PE)
PAA: polyolefin (PE based)
Other materials
seals: Viton®, protective cap: POM
conductivity (additional): titanium, PEEK
CE-Conformity (EMC)
EN 61000-6-1 to 6-4
EN61326-1
EN61326-2-3
Reverse polarity and overvoltage protection
± 32 VDC power supply and RS485
Standard lightning protection in accordance with EN61000-4-5
Line-Line: 50 A @ 8/20 μs
Line-CASE: 200 A @ 8/20 μs
Degree of protection
IP68
1) Pressure range buffer: pressures can be measured at up to 10% outside the pressure range either way, in which case “+Inf” or “-Inf”, as appropriate, will be displayed.
2) Subconn® connectors increase the pressure range to above 30 bar Pressure ranges > 21 bar are only possible without a conductivity sensor.
3) Linearity (best straight line), hysteresis and repeatability.
4) Accuracy and temperature error within the compensated temperature range.
5) Outside the compensated temperature range up to the limits of the operating temperature range, the deviation will be up to twice the value displayed.
6) Temperature information for the pressure sensor (TOB: top of bridge)
7) Power consumption without communication. During the response time (9 ms @ 9600 Baud, 1 ms @ 115’200 Baud), an extra 1…40 mA depending on the line termination.
