7MF4997-2HD

Input of gauge pressure, with flush diaphragm

Measured variable

Gauge pressure, flush-mounted

Span (infinitely adjustable) or nominal measuring range, max. operating pressure and max. test pressure

HART

PROFIBUS PA and FOUNDATION Fieldbus

Span

Nominal measuring range

Max. perm. operating pressure MAWP (PS)

Max. permissible test pressure

0.01 ... 1 bar
1 ... 100 kPa
0.15 ... 14.5 psi

1 bar
100 kPa
14.5 psi

4В bar
400 kPa
58В psi

6В bar
600 kPa
87В psi

0.04В ...В 4В bar
4 ... 400 kPa
0.58В ...В 58В psi

4 bar
400 kPa
58 psi

7В bar
0.7 MPa
102В psi

10В bar
1 MPa
145В psi

0.16В ...В 16В bar
16 ... 1600 kPa
2.32В ...В 232В psi

16 bar
1.6 MPa
232 psi

21В bar
2.1 MPa
305В psi

32В bar
3.2 MPa
464В psi

0.6В ...В 63В bar
63 ... 6300 kPa
9.14В ...В 914В psi

63 bar
6.3 MPa
914 psi

67В bar
6.7 MPa
972 psi

100В bar
10 MPa
1450В psi

Low measuring limit

• Measuring cell with silicone oil filling

100 mbar a/10 kPa a/1.45 psia

• Measuring cell with inert fill fluid

100 mbar a/10 kPa a/1.45 psia

• Measuring cell with neobee

100 mbar a/10 kPa a/1.45 psia

Upper measuring limit

100 % of max. span

Input of gauge pressure, with flush diaphragm

Measured variable

Absolute pressure, flush-mounted

Span (infinitely adjustable) or nominal measuring range, max. operating pressure and max. test pressure

HART

PROFIBUS PA and FOUNDATION Fieldbus

Span

Nominal measuring range

Max. perm. operating pressure MAWP (PS)

Max. permissible test pressure

43 ... 1300 mbarВ a
4.2 ... 130 kPa a
17 ... 525 inH₂O a

1300 mbarВ a
130 kPa a
525 inH₂O a

2.6 barВ a
260 kPa a
37.7 psia

10 barВ a
1 MPa a
145 psia

0.16 ... 5 barВ a
16 ... 500 kPA a
2.32 ... 72.5 psia

5 barВ a
500 kPA a
72.5 psia

10 barВ a
1 MPa a
145 psia

30 barВ a
3 MPa a
435 psia

1 ... 30 barВ a
0.1 ... 3 MPa a
14.5 ... 435 psia

30 barВ a
3 MPa a
435 psia

45 barВ a
4.5 MPa a
653 psia

100 barВ a
10 MPa a
1450 psia

Depending on the process connection, the span may differ from these values.

Low measuring limit

0 barВ a/0 kPa a/0 psia

Upper measuring limit

100 % of max. span

Output

HART

PROFIBUS PA and FOUNDATION Fieldbus

Output signal

4В ...В 20 mA

Digital PROFIBUS PA and FOUNDATION Fieldbus signal

• Lower limit (infinitely adjustable)

3.55 mA, factory preset to 3.84 mA

-

• Upper limit (infinitely 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 Ω,
U_H: Power supply in V

-

• With HART

R_B = 230 ... 500 О© (SIMATIC PDM) or
R_B = 230 ... 1100 О© (HART Communicator)

-

Physical bus

-

IECВ 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)

• Rising characteristic curve
• Start of scale 0 bar
• Seal diaphragm stainless steel
• Silicone oil filling
• Room temperature 25В В°C (77В В°F)

Measuring span ratio r (spread, Turn-Down)

r = maximum measuring span/set measuring span or nominal measuring range

Error in measurement at limit setting including hysteresis and reproducibility

• Linear characteristic

Gauge pressure with flush-mounted diaphragm

Absolute pressure with flush-mounted diaphragm

• r ≤ 5

≤ 0.075 %

-

• 5В <В r ≤ 100

≤ (0.005 · r + 0.05) %

-

• r ≤ 10

-

≤ 0.2 %

• 10В <В r ≤ 30

-

≤ 0.4 %

Influence of ambient temperature
(in percent per 28В В°C (50В В°F))

≤ (0.08 · r + 0.16) %

≤ (0.16 · r + 0.24) %

Influence of the process temperature (in pressure per temperature unit)

• Temperature difference between process temperature temperature and ambient temperature

3 mbar/0.3 kPa/0.04 psi per 10 K

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

≤ (0.25 · r) % in 5 years

Effect of mounting position (in pressure per change of angle)

0.4 mbar/0.04 kPa/0.006 per 10В° incline (zero point correction is possible with position error compensation)

Effect of auxiliary power (in percent per voltage change)

0.005 % per 1 V

Measured-value resolution for PROFIBUS PA and FOUNDATION Fieldbus

3В В·В 10^-5 of nominal measuring range

Rated conditions

Installation conditions

Ambient temperature

Observe the temperature class in areas subject to explosion hazard.

• Measuring cell with silicone oil

-40 ... +85 В°C (-40 ... +185 В°F)

• Measuring cell with Neobee oil (with flush-mounted diaphragm)

-10 ... +85 В°C (14 ... 185 В°F)

• Measuring cell with inert liquid

-40 ... +85 В°C (-40 ... +185 В°F)

• Transmitter

-40 ... +85 В°C (-40 ... +185 В°F)

• Display readable

-30 ... +85 В°C (-22 ... +185 В°F)

• Storage temperature

-50В ...В +85В В°C (-58В ...В +185В В°F)
(for neobee: -20 ... +85 В°C (-4 ... +185 В°F))
(for high-temperature oil: -10 ... +85 В°C (14 ... 185 В°F))

• Climatic class

• Condensation

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

Degree of protection according to IECВ 60529

IP66 (optional IP66/IP68), NEMA 4X

• Electromagnetic compatibility

• Emitted interference and interference immunity

According to IECВ 61326 and NAMURВ NEВ 21

Process conditions

Temperature of medium

The max. medium temperature of the flush-mounted process connections is to be taken into account in accordance with the relevant connection standards (e.g. DIN 32676, DIN 11851, etc.).

• Measuring cell with silicone oil

-40 ... +100 В°C (-40 ... +212 В°F)

• Measuring cell with silicone oil (with flush-mounted diaphragm)

-40 ... +150 В°C (-40 ... +302 В°F)

• Measuring cell with Neobee oil (with flush-mounted diaphragm)

-10 ... +150 В°C (14 ... 302 В°F)

• Measuring cell with silicone oil, with temperature decoupler (only for gauge pressure version with flush-mounted diaphragm)

-40 ... +200 В°C (-40 ... +392 В°F)

• Measuring cell with Neobee oil, with temperature decoupler (only for gauge pressure version with flush-mounted diaphragm)

-10В ...В +200В В°C (14В ...В 392В В°F)

• Measuring cell with inert fill fluid

-20 ... +100 В°C (-4 ... +212 В°F)

• Measuring cell with high-temperature oil (only for gauge pressure version with flush-mounted diaphragm)

-10 ... +250 В°C (14 ... 482 В°F)

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

Stainless steel, mat. no. 1.4404/316L or Hastelloy C276, mat. no. 2.4819

Measuring cell filling

Silicone oil or inert fill fluid

Process connection

• Flanges as per EN and ASME
• F&B and pharmaceutical flanges

Surface quality touched-by-media

R_a-values ≤ 0.8 µm (32 µ-inch)/welds R_a) ≤ 1.6 µm (64 µ-inch)

(Process connections_{according to 3A; Ra}-values ≤ 0.8 µm (32 µ-inch)/welds R_a) ≤ 0.8 µm (32 µ-inch)

Auxiliary power U_H

HART

PROFIBUS PA/FOUNDATION Fieldbus

Terminal voltage on transmitter

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

-

Auxiliary power

-

Bus-powered

Separate supply voltage

-

Not necessary

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

HART

PROFIBUS PA/FOUNDATION Fieldbus

Classification according to pressure equipment directive (PEDВ 2014/68/EU)

For gases of fluid group 1 and liquids of fluid groupВ 1; complies with requirements of articleВ 4, paragraphВ 3 (sound engineering practice)

Explosion protection

• Intrinsic safety "i"

PTB 13 ATEX 2007 X

• Marking

Ex II 1/2 G Ex ia/ib IIC T4/T5/T6 Ga/Gb

• Permissible ambient temperature

-40 ... +85 В°C (-40 ... +185 В°F) temperature class T4;
-40 ... +70 В°C (-40 ... +158 В°F) temperature class T5;
-40 ... +60 В°C (-40 ... +140 В°F) temperature class T6

• Wiring

To certified intrinsically-safe circuits with peak values:
U_i = 30 V, I_i = 100 mA,
P_i = 750 mW; R_iВ =В 300В О©

FISCO supply unit:
U_o = 17.5 V, I_o = 380 mA, P_o = 5.32 W

Linear barrier:
U_o = 24 V, I_o = 174 mA, P_o = 1 W

• Effective internal inductance/capacitance

L_i = 0.4 mH, C_i = 6 nF

L_i = 7 ОјH, C_i = 1.1 nF

• Flameproof enclosure "d"

PTB 99 ATEX 1160

• Marking

Ex II 1/2 G Ex d IIC T4/T6 Gb

• Permissible ambient temperature

-40 ... +85 В°C (-40 ... +185 В°F) temperature class T4;
-40 ... +60 В°C (-40 ... +140 В°F) temperature class T6

• Wiring

To circuits with operating values: U_HВ =В 10.5В ...В 45 V DC

To circuits with operating values: U_HВ =В 9В ...В 32 V DC

• Dust explosion protection for zone 20

PTB 01 ATEX 2055

• Marking

Ex II 1 D Ex ta IIIC T120В°C Da
Ex II 1/2 D Ex ta/tb IIIC T120В°C Da/Db

• Permissible ambient temperature

-40В ...В +85В В°C (-40В ...В +185В В°F)

• Max. surface temperature

120 В°C (248 В°F)

• Wiring

To certified intrinsically-safe circuits with peak values:
U_i = 30 V, I_i = 100 mA,
P_i = 750 mW, R_i = 300 О©

FISCO supply unit:
U_o = 17.5 V, I_o = 380 mA, P_o = 5.32 W

Linear barrier:
U_o = 24 V, I_o = 250 mA, P_o = 1.2 W

• Effective internal inductance/capacitance

L_i = 0.4 mH, C_i = 6 nF

L_i = 7 ОјH, C_i = 1.1 nF

• Dust explosion protection for zone 21/22

PTB 01 ATEX 2055

• Marking

Ex II 2 D Ex tb IIIC T120В°C Db

• Wiring

To circuits with operating values: U_HВ =В 10.5В ...В 45 V DC; P_max = 1.2 W

To circuits with operating values: U_HВ =В 9В ...В 32 VВ DC; P_max = 1 W

• Type of protection "n" (zone 2)

PTB 13 ATEX 2007 X

• Marking

Ex II 2/3 G Ex nA IIC T4/T5/T6 Gc
Ex II 2/3 G Ex ic IIC T4/T5/T6 Gc

• Connection (Ex nA)

U_m = 45 V

U_m = 32 V

• Connection (Ex ic)

To circuits with operating values:
U_i = 45 V

FISCO supply unit:
U_o = 17.5 V, I_o = 570 mA

Linear barrier:
U_o = 32 V, I_o = 132 mA, P_o = 1 W

• Effective internal inductance/capacitance

L_i = 0.4 mH, C_i = 6 nF

L_i = 7 ОјH, C_i = 1.1 nF

• Explosion protection acc. to FM

Certificate of Compliance 3008490

• Marking (XP/DIP) or (IS); (NI)

CLВ I, DIVВ 1, GP ABCD T4...T6; CLВ II, DIVВ 1, GPВ EFG; CLВ III; CLВ I, ZNВ 0/1 AEx ia IIC T4...T6; CLВ I, DIVВ 2, GPВ ABCD T4...T6; CLВ II, DIVВ 2, GPВ FG; CLВ III

• Explosion protection to CSA

Certificate of Compliance 1153651

• Marking (XP/DIP) or (IS)

CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC T4...T6; CL I, DIV 2, GP ABCD T4...T6; CL II, DIV 2, GP FG; CL III

HART

230В ...В 1100В О©

Protocol

HART Version 5.x

Software for computer

SIMATICВ 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, ClassВ 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, 1В 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