Deghat Gostar Eng. Co.

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

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

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

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

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

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

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

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)

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

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%

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

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

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

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

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

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%

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

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.

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

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)

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

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

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

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

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

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

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