HART

PROFIBUS PA and FOUNDATION Fieldbus

Input

Measured variable

Gauge pressure

Span (fully adjustable)
or nominal measuring range and
max. permissible test pressure

Span (min. ... max.)

Max. permissible test pressure

Nominal measuring range

Max. permissible test pressure

0.01 ... 1 bar
(0.15 ... 14.5 psi)

6 bar
(87 psi)

1 bar
(14.5 psi)

6 bar
(87 psi)

0.04 ... 4 bar
(0.58 ... 58 psi)

10 bar
(145 psi)

4 bar
(58 psi)

10 bar
(145 psi)

0.16 ... 16 bar
(2.32 ... 232 psi)

32 bar
(464 psi)

16 bar
(232 psi)

32 bar
(464 psi)

Lower measuring limit

• Measuring cell with silicone oil filling

100 mbar a (1.45 psia)

Upper measuring limit

100 % of max. span

Output

Output signal

4 ... 20 mA

Digital PROFIBUS PA and FOUNDATION Fieldbus signal

• Lower limit (fully adjustable)

3.55 mA, factory preset to 3.84 mA

-

• Upper limit (fully adjustable)

23 mA, factory preset to 20.5 mA or optionally set to 22.0 mA

-

Load

• Without HART

R _B ? (U_H - 10.5 V)/0.023 A in ?,
U_H: Power supply in V

-

• With HART

R _B = 230 ... 500 ? (SIMATIC PDM) or
R_B = 230 ... 1100 ? (HART Communicator)

-

Physical bus

-

IEC 61158-2

Protection against polarity reversal

Protected against short-circuit and polarity reversal. Each connection against the other with max. supply voltage.

Electrical damping (step width 0.1 s)

Set to 2 s (0 ... 100 s)

Measuring accuracy

According to IEC 60770-1

Reference conditions
(All error data refer always refer to the set span)

Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil filling, room temperature (25 °C (77 °F))

Span ratio r (r = max. span / set span)

Nominal measuring range ratio r (r = nominal measuring range/set measuring range)

Error in measurement at limit setting including hysteresis and reproducibility

• Linear characteristic

• r ? 10

? (0.0029 · r + 0.071) %

? (0.0029 · r + 0.071) %

• 10 < r ? 30

? (0.0045 · r + 0.071) %

? (0.0045 · r + 0.071) %

• 30 < r ? 100

? (0.005 · r + 0.05) %

? (0.005 · r + 0.05) %

Long-term stability (temperature change ±30 °C (±54 °F))

• 1- to 4-bar measuring cell

? (0.25 · r) % every 5 years

? (0.25 · r) % every 5 years

• 16-bar measuring cell

? (0.125 · r) % every 5 years

? (0.125 · r) % every 5 years

Influence of ambient temperature

• at -10 ... +60 °C (14 ... 140 °F)

? (0.08 · r + 0.1) %¹⁾

? (0.08 · r + 0.1) %¹⁾

• at -40 ... -10 °C and +60 ... +85 °C
  (-40 ... +14 °F and 140 ... 185 °F)

? (0.1 · r + 0.15) %/10 K

? (0.1 · r + 0.15) %/10 K

Influence of the medium temperature

• Temperature difference between medium temperature and ambient temperature

3 mbar/10 K (1.2 inH₂O/10 K)

Influence of mounting position

? 0.1 mbar (0.04 inH₂O) per 10° inclination

Measured Value Resolution

-

3 · 10^-5 of nominal measuring range

Rated conditions

Degree of protection according to IEC 60529

IP65, IP68, NEMA 4X, enclosure cleaning, resistant to lyes, steam to 150 °C (302 °F)

Temperature of medium

-40 ... +100 °C (-40 ... +212 °F)

Ambient conditions

• Ambient temperature

• Transmitter
  (with 4-wire connection, observe temperature values of supplementary 4-wire electronics)

-40 ... +85 °C (-40 ... +185 °F)

• Storage temperature

-50 ... +85 °C (-58 ... +185 °F)

• Climatic class

• Condensation

Relative humidity 0 ... 100 %
Condensation permissible, suitable for use in the tropics

• Electromagnetic Compatibility

• Emitted interference and interference immunity

According to IEC 61326 and NAMUR NE 21

Design

Weight (without options)

? 1.5 kg (? 3.3 lb)

Enclosure material

Low-copper die-cast aluminum, GD-AlSi 12 or stainless steel precision casting, mat. no. 1.4408

Wetted parts materials

• Gasket (standard)

PTFE flat gasket

• O-ring (minibolt)

FPM (Viton) or optionally: FFPM or NBR

Measuring cell filling

Silicone oil or inert fill fluid

Process connection (standard)

Flush-mounted, 1?", PMC Standard design

Process connection (minibolt)

Flush-mounted, 1", minibolt design

Power supply U _H

Supplied through bus

Terminal voltage on transmitter

10.5 ... 45 V DC
10.5 ... 30 V DC in intrinsically-safe mode

-

Separate 24 V power supply necessary

-

No

Bus voltage

• Not Ex

-

9 ... 32 V

• With intrinsically-safe operation

-

9 ... 24 V

Current consumption

• Basic current (max.)

-

12.5 mA

• Start-up current ? basic current

-

Yes

• Max. current in event of fault

-

15.5 mA

Fault disconnection electronics (FDE) available

-

Yes

Certificates and approvals

Classification according to PED 97/23/EC

For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of article 3, paragraph 3 (sound engineering practice)

HART

230 ... 1100 ?

Protocol

HART Version 5.x

Software for computer

SIMATIC PDM

Simultaneous communication with master class 2 (max.)

4

The address can be set using

Configuration tool or local operation (standard setting address 126)

Cyclic data usage

• Output byte

5 (one measured value) or
10 (two measured values)

• Input byte

0, 1, or 2 (register operating mode and reset function for metering)

Internal preprocessing

Device profile

PROFIBUS PA Profile for Process Control Devices Version 3.0, Class B

Function blocks

2

• Analog input

• Adaptation to user-specific process variable

Yes, linearly rising or falling characteristic

• Electrical damping adjustable

0 … 100 s

• Simulation function

Input /Output

• Failure mode

parameterizable (last good value, substitute value, incorrect value)

• Limit monitoring

Yes, one upper and lower warning limit and one alarm limit respectively

• Register (totalizer)

Can be reset, preset, optional direction of counting, simulation function of register output

• Failure mode

parameterizable (summation with last good value, continuous summation, summation with incorrect value)

• Limit monitoring

One upper and lower warning limit and one alarm limit respectively

• Physical block

1

Transducer blocks

2

• Pressure transducer block

• Can be calibrated by applying two pressures

Yes

• Monitoring of sensor limits

Yes

• Specification of a container characteristic with

Max. 30 nodes

• Square-rooted characteristic for flow measurement

Yes

• Gradual volume suppression and implementation point of square-root extraction

Parameterizable

• Simulation function for measured pressure value and sensor temperature

Constant value or by means of parameterizable ramp function

Function blocks

3 function blocks analog input, 1 function block PID

• Analog input

• Adaptation to user-specific process variable

Yes, linearly rising or falling characteristic

• Electrical damping adjustable

0 … 100 s

• Simulation function

Output/input (can be locked within the device with a bridge)

• Failure mode

parameterizable (last good value, substitute value, incorrect value)

• Limit monitoring

Yes, one upper and lower warning limit and one alarm limit respectively

• Square-rooted characteristic for flow measurement

Yes

• PID

Standard FOUNDATION Fieldbus function block

• Physical block

1 resource block

Transducer blocks

1 transducer block Pressure with calibration, 1 transducer block LCD

• Pressure transducer block

• Can be calibrated by applying two pressures

Yes

• Monitoring of sensor limits

Yes

• Simulation function: Measured pressure value, sensor temperature and electronics temperature

Constant value or by means of parameterizable ramp function