Pressure Transducer / Transmitter – PTM

 

sts

Pressure transducer / transmitter with pressure range up to 1000 bar.

A Wheatstone bridge is a divided bridge circuit used for the measurement of static or dynamic electrical resistance. The output voltage of the Wheatstone bridge is expressed in millivolts output per volt input. The Wheatstone circuit is also well suited for temperature compensation.

sts_topbar

• Piezoresistive measuring element

• Adjustable 1:4 of the nominal range within -5% to +105% FS

• All pressure ranges between 0…50 mbar and -1…1000 bar available

• Pressure units adjustable

• Recalibration function for zero and span

• Adjustable time delay

• Reverse polarity and short circuit protected

• Interface RS485 (MODBUS) Output: pressure and temperature

• Active compensated (option) - Digital temperature compensated

• Industrial Measurement

• Process & Control

• Food & Beverage

• Hydraulic Test benches

Techncial Details
Pressure Range (Bar) 0.1...0.5 >0.5...2 >2...25 >25...600 >600...1000
Overpressure 3 bar 3 x FS
(Minimal 3 bar)
3 x FS 3 x FS
(Maximum 850 bar, optional to 1500 bar)
1500 bar
Burst Pressure >200 bar >200 bar >200 bar >850 bar
(Optional to 1500 bar)
>1500 bar
Thermal Shift [± % FS/°C]
Zero (0. . .70°C)
(-25. . .85°C)
≤0.06 (4)
≤0.08 (5)
≤0.03
≤0.04
≤0.015
≤0.02
≤0.015
≤0.02
≤0.015
≤0.02
Span (0. . .70°C)
(-25. . .85°C)
≤0.015
≤0.02
≤0.015
≤0.02
≤0.015
≤0.02
≤0.015
≤0.02
≤0.015
≤0.02
Active Compensated
[Z+S] (-10. . .50°C)
[Typ./Max.] (-25. . .85°C)
≤0.01/0.015
≤0.015/0.02
≤0.01/0.015
≤0.015/0.02
≤0.01/0.015
≤0.015/0.02
≤0.01/0.015
≤0.015/0.02
≤0.01/0.015
≤0.015/0.02
Accuracy (1) ≤ ± 0.25 % FS
≤ ± 0.1 % FS, ≥ 500 mbar
≤ ± 0.1 % FS, activ compensated (option)
Electrical Specifications
Supply Voltage Range: 9...30 V DC
Supply voltage influence: <0.1 % FS
Analog Output Standard: RS485 (pressure) and 4...20mA (pressure)
Activ compensated: RS485 (pressure and temperature) and 4...20mA (pressure and temperature)
Resolution: ≤ ± 0.025 % (analog output), ± 0.01 % (digital output)
Output at 4 mA: adjustable between -5% FS ...105 % FS
Output at 20 mA: adjustable between -5% FS... 105 % FS
Span: adjustable between 25% FS...110% FS, min. 50 mbar
Adjustable time delay: 100 ms, 1 s, 10 s, (standard approx. 30 ms)
Temperature output (precision): ± 1°C
Load Resistance RL = UB [V] - 6V / 0.02A, 1 kOhm max.
Load Resistance Influence <0.1 % FS
Protocol MODBUS, Layer 7
Interface (3) VART199 incl. PC-Program (VART244)
Materials
Process Connection, Diaphragm, Housing Stainless steel 1.4435 (316L) other materials (e.g. titanium) on request
Seals (Standard) Viton (other materials see ordering code)
Electromagnetic Compatibility
Standard Level Typical Interferences
Emission

EN 61000-6-3
EN 55022

Generic emission standard
Emission, class B
Immunity
EN 61000-6-2 Generic immunity
EN 61000-4-2 Electrostatic discharge 4kV contact, 8kV air
EN 61000-4-3 Radiated electro-magnetic field 10V/m, 80-1000 MHz, 80% AM 1kHz Cellular phones, radio sets
EN 61000-4-3 Radiated electro-magnetic field (GSM) 10V/m, 950 MHz, 200Hz on/off Digital portable phones
EN 61000-4-4 Fast transients (burst) 2 kV Motors, valves
EN 61000-4-6 Conducted radio-frequency 10V, 0.15-80 MHz, 80% AM 1kHz Cellular phones, radio sets
EN 61000-4-5 Surge 10 kA (8/20 μs) (2) Lightning strikes
(1) Zero based non-conformity according to DIN 16086, including hysteresis and repeatability
(2) Only with optional surge (lightning) protection
(3) Interface not included
(4) 50 – 99 mbar: ≤ 0.12
(5) 50 – 99 mbar: ≤ 0.16
Note: Specification are subject to change without noitce.


Share On Facebook
Share On Twitter
Share On Linkedin
Whatsapp
We Chat
Contact us

More Products / Systems