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Pressure Transmitters

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Pressure Transmitters for Industrial Application

Keller Series  4 LC…9 LC
Keller Series 4 LC…9 LC
Piezoresistive OEM Pressure Transmitters -40…150 °C, with Embedded Signal Conditioning

Pressure Ranges 1...1000 bar (abs./rel.)
Accuracy max. 0,25 %FS
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Keller Series 21Y
Keller Series 21Y
Piezoresistive Pressure Transmitters For Industrial Applications
Pressure Ranges 2...1000 bar
Output 4...20 mA / 0…10 V / 0,5...4,5 V (not ratiometric)
Linearity (best fitted straight line) ± 0,25 %FS
Storage-/Operating Temperature -40…100 °C
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Keller  Series 21 C
Keller Series 21 C
Piezoresistive Pressure Transmitter For Industrial Applications, Ratiometric Output
Pressure Ranges 2...100 bar
Output 0,5...4,5 V ratiometric
Accuracy max. ±0,25 %FS
Total Error Band (0…50 °C) max. ±1,0 %FS
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 Keller Series 21 G
Keller Series 21 G
Piezoresistive Pressure Transmitter For Industrial Applications
Pressure Ranges
Min: 0...5 bar
Max: 0... 200 bar
Output 4...20 mA / 0,5...4,5 V ratiometrisch
Linearity (BSFL) typ. 0,25 %FS
Error Band (0…50 °C) typ. 1,0 %FS
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Kelle Series 21 PY "Pisello"
Kelle Series 21 PY "Pisello"
Piezoresistive Miniature Pressure Transmitters
Supply 8…28 V
Pressure Ranges from 10 bar FS to 600 bar FS (abs.)
Output 3-wire: 0,5...4,5 V (not ratiometric)
Linearity (best fitted straight line) Standard: max. ±0,5 %FS
Premium: max. ±0,25 %FS
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Keller Series 22 DT
Keller Series 22 DT
Piezoresistive Transmitters For Automotive- and Industrial Applications
Pressure Range 14 bar (abs.)
Supply 5 V ± 0,25 V
Output 0,5 V...4,5 V ratiometric
Accuracy ± 4 %FS (-40…0 °C)
± 2 %FS (0…90 °C)
± 4 %FS (90…125 °C)
Protection IP67
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Keller Series 22 M/S
Keller Series 22 M/S
Piezoresistive Transmitters for Automotive and Industrial Applications
Pressure Ranges 5...250 bar (abs./rel.)
Supply 5 V ± 0,25 V
Output 0,5 V...4,5 V rationmetric
Accuracy (comp. range) ± 1 % FS (10...50°C)
± 2 % FS (0...80°C)
± 4 % FS (-40...125°C)
Homologation: E4-110R-000036 and E4-10R-020927
Protection: IP67
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Keller Series 23 / 25
Keller Series 23 / 25
Piezoresistive Transmitters
Absolute-, Gauge- and Differential Pressure
Pressure Ranges 0,2...1000 bar (abs./rel.)
Output 0...10 V | 0...20 mA | 4...20 mA
Linearity typ. ± 0,2 %FS, max. ± 0,5 %FS
Stability, Range > 2 bar
Stability, Range < 2 bar: typ. 0,1 %FS, max. 0,2 %FS
typ. 1 mbar, max. 2 mbar
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Keller Series 23 (S)Y / 25 Y
Keller Series 23 (S)Y / 25 Y
Piezoresistive Pressure Transmitters
Pressure Ranges: -1...1000 bar
Output 4...20 mA | 0…5 V | 0…10 V | 0,5...4,5 V (not ratiometric)
Linearity: (2…1000 bar) ± 0,25 %FS
Storage-/Operating Temperature: -40…100 °CError Band 0,5 %FS (0…50 °C)
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Kelle Series 33 X / 35 X
Kelle Series 33 X / 35 X
Highly Precise Pressure Transmitters
Mathematically Compensated / ProgrammablePressure Ranges 0,8...1000 bar (abs./rel.)
Output Signal: RS485 (digital) | 4...20 mA (2-wire) | 0...10 V (3-wire) | 0…2,5 V / 0…5 V (3-wire) | 0,1…2,5 V (3-wire)
Accuracy, Error Band (10…40 °C):
typ. 0,05 %FS (digital)
typ. 0,1 %FS (2-wire)
typ. 0,1 %FS (3-wire)

Optional: Precision
(only for Series 33 X and for ranges > 10 bar)
typ. 0,01 %FS (digital)
Long Term Stability typ.
Gauges: 1 mbar or 0,05 %FS
Absolute: 0,5 mbar or 0,025 %FS (10…40°C)
Resolution: 0,002 %FS
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Keller Series PD-39 X
 (Ex)
Keller Series PD-39 X (Ex)
Differential Pressure Transmitters
Based on two Absolute Sensors

Output 4...20 mA (2 Wire)
0...10 V (3 Wire)
Error Band
typ. < 0,05 %FS
Long Term Stability typ. 0,1%
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Keller Series 41 X / 41 X
Keller Series 41 X / 41 X
Capacitive Transmitter From 1 mbar Full Range / Resolution 1 µbar
Pressure Ranges: 30 mbar / 100 mbar / 300 mbar (rel./diff.)
Output: 4...20 mA | 0...10 V
Error Band (10…50°C): 0,1 %FS typ. / 0,2 %FS max.
Operating Temperature: -20...80 °C
Comp. Temp. Range: 10...50 °C
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Pressure Transmitters for Hazardous Applications

Keller  Series 23 (S) Ei, 25 (S) Ei and 26 Ei
Keller Series 23 (S) Ei, 25 (S) Ei and 26 Ei
Pressure Transmitters
For Hazardous Applications
Pressure Ranges, 23 Ei / 25 Ei / 26 Ei: -1...1000 bar (abs./rel.)
Pressure Ranges, 23 S Ei: 2... 200 bar (abs./rel.)
Pressure Ranges, 25 S Ei: 2... 20 bar (abs./rel.)
Output: 4...20 mA, 2 wire | 0...10 V, 3 wire
Linearity: ± 0,5 %FS
Stability, Range > 2 bar: typ. 0,1 %FS
Stability, Range < 2 bar: typ. 2 mbar
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Keller Series 23 Ed / 25 Ed, 33 X Ed / 35 X Ed
Keller Series 23 Ed / 25 Ed, 33 X Ed / 35 X Ed
Piezoresistive Transmitters with Pressure Proof Housing
For Hazardous Applications
Pressure Ranges: 0,1...300 bar (depending on type; see data sheet)
Output: 4...20 mA | 0...10 V | RS485
Accuracy / Error Band: see data sheet
Stability, Range > 1 bar: typ. 0,1 %FS
Stability, Range < 1 bar: typ. 1 mbar
Comp. Temp. Range: -10...80 °C
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Keller Series 33 X Ei, 35 X Ei, 36 XW Ei, PD-33 X Ei
Keller Series 33 X Ei, 35 X Ei, 36 XW Ei, PD-33 X Ei
Highly Precise Pressure Transmitters
For Hazardous Applications
Pressure Ranges: 1...1000 bar (see data sheet)
Output: RS 485 | 4...20 mA, 2 wire | 0...10 V, 3 wire
Accuracy / Precision: (see data sheet)
Stability, Range > 1 bar: 1 mbar
Stability, Range < 1 bar: 0,1 %FS
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 Series PD-39 X Ei
Series PD-39 X Ei
Differential Pressure Transmitters
Based on two Absolute Sensors
Standard Pressure Ranges: see data sheet
Output: 4...20 mA (2 Wire) | 0...10 V (3 Wire)
Error Band: typ. < 0,05 %FS
Long Term Stability typ.: 0,1%
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Keller Series 41 X / 41 X Ei
Keller Series 41 X / 41 X Ei
Capacitive Transmitter From 1 mbar Full Range / Resolution 1 µbar
Pressure Ranges: 30 mbar / 100 mbar / 300 mbar (rel./diff.)
Output: 4...20 mA | 0...10 V
Error Band (10…50°C): 0,1 %FS typ. / 0,2 %FS max.
Operating Temperature: -20...80 °C
Comp. Temp. Range: 10...50 °C
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Keller Series 46 X / 46 X Ei
Keller Series 46 X / 46 X Ei
Capacitive Transmitters
For Water Level Measurements
Pressure Ranges: 30 mbar / 100 mbar / 300 mbar (rel.)
Output: 4...20 mA | 0...10 V
Error Band 10…50 °C: 0,1 %FS typ. / 0,2 %FS max.
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Pressure Transmitters for Biotechnology / Food Industries

Keller Series 25 F
Keller Series 25 F
Piezoresistive Transmitters
For Food Industries
Pressure Ranges 0,2...400 bar (abs./rel.)
Output 0...10 V | 0...20 mA | 4...20 mA
Linearity typ. ± 0,2 %FS
Stability typ. ± 0,1 %FS
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Keller Series 35 X HT(T)
Keller Series 35 X HT(T)
Piezoresistive Transmitters
For Applications in Bio-Reactors or Autoclaves
Pressure Ranges -1...30 bar (abs./rel.)
Output RS485 | 4...20 mA (2-Wire) | 0...10 V (3-Wire)
Accuracy (20…120 °C):
0,15 %FS (RS485)
0,2 %FS (2-/3-Wire)
Resolution 0,002 %FS
Stability, Range > 2 bar: 2 mbar
Stability, Range < 2 bar: 0,2 %FS
Storage- / Operating Temp. Range: -20…150 °C (electronics max. 120 °C)
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Keller Series 35 X HTC
Keller Series 35 X HTC
High Temperature Pressure Transmitters
For Biotechnology / Food Industries
Pressure Ranges: 0...1000 bar (abs./rel.)
Output: RS485 | 4...20 mA | 0...10 V
Precision: 0,5 %FS
Linearity (best straight line): 0,05 %FS
Storage-/Operating Temperature Range Media: 0…300 °C
Electronics: 0…120 °C
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Piezoresistive Force Transmitter

Keller Series FA-23
Keller Series FA-23
Piezoresistive Force Transmitters Series FA-23
Force Ranges: 0…15 kN
Output 0,5...4,5 V | 4...20 mA
Linearity typ. 0,5%
Total Accuracy 0...50 °C ± 1 %FS
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Intelligent Transmitter with Digital Indication

Keller LEO3
Keller LEO3
Digital Manometer
Bus-capable / Programmable 4...20 mA Output.
Pressure port G1/4"
Compensated temperature range 0...50°C
Accuracy at room temperature [%FS] 0.1
Ranges: 3, 30, 300, 700 & 1000 bar
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Smart Pressure Transmitters

Rosemount 3051
Rosemount 3051
Rosemount 3051 Pressure Transmitters With its time-tested reliability and over 4 million installations, the Rosemount 3051 is more than field proven – it is the Industry Standard.

The 3051 delivers unparalleled reliability, performance and safety to increase your plant profitability. Better measurement means a stronger bottom line. The comprehensive offering enhances your pressure, level and flow applications from simple measurement to stringent SIL2 safety compliance.

Measurement Type: Differential, Gage, Absolute, Level, Flow
Output: 4-20 mA HART, FOUNDATION™ fieldbus, PROFIBUS PA, 1-5 Vdc HART Low Power
Reference Accuracy: ± 0.065% of span with 0.04% Optional
Total Performance: ± 0.15% of span
Long Term Stability: ± 0.125% of URL for 5 years
Rangedown: 100:1
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Rosemount 2051
Rosemount 2051
The Rosemount 2051 family of pressure transmitters empowers you to measure pressure with confidence.

The 2051 provides a reliable differential, gage, and absolute pressure measurement with a variety of output protocols, materials and process connections. Meet your pressure, level, and flow application needs with its flexible Coplanar™ platform so that you can lower project and ongoing maintenance costs.

Measurement Types: Differential, Gauge, Absolute, Level and Flow
Output: 4-20mA HART®, FOUNDATION™ fieldbus, PROFIBUS PA, 1-5Vdc HART® Low Power
Reference Accuracy: ± 0.075% of span
Long Term Stability: 0.1% of URL for 2 years
Rangedown: 100:1
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Rosemount 2088
Rosemount 2088
Rosemount 2088 Gage & Absolute Pressure Transmitters The Rosemount 2088 is a highly reliable and accurate transmitter in a lightweight, compact package.
The 2088 can be calibrated to ranges as low as 0 to 1.5 psi (0.1 bar) and as high as 0 to 4000 psi (275.8 bar). It can also be used to measure negative pressure ranges. The 2088 measurement capabilities enable reliable use in almost any application.

Measurement Type: Gage, Absolute
Outputs HART, Low Power HART
Reference Accuracy: ± 0.10% of Span
Stability: ± 0.10% of URL for 12 months

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Rosemount 3051S
Rosemount 3051S
Rosemount 3051S Scalable Level Transmitter
The Rosemount 3051S Scalable Level Transmitter will maximize your level measurement success by providing superior performance and best-in-class reliability. Combined with the comprehensive Rosemount 1199 Seal Systems offering, the 3051S can meet all your level application needs.
Measurement Type: Differential and gage level measurement
Product Configurations: 3051S_L with flush and extended diaphragm seals
1199 Remote Seal optional
Output: 4-20mA HART™, FOUNDATION™ fieldbus, WirelessHART™
Reference Accuracy: 0.065% of span
Rangedown: 100:1
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