7MF4997-1AM

Input

Measured variable

Absolute pressure

Span (infinitely adjustable) or nominal measuring range, max. operating pressure (in accordance with 97/23/EC Pressure Equipment Directive) and max. test pressure (pursuant to DINВ 16086)

HART

PROFIBUS PA and FOUNDATION Fieldbus

Span

Nominal measuring range

Max. perm. operating pressure MAWP (PS)

8.3В ...В 250 mbar
0.83 ... 25 kPa a
3 ... 100 inH₂O a

250В mbar
25 kPa a
100 inH₂O a

32В barВ a
3.2 MPa a
464 psia

43В ...В 1300В mbar
4.3 ... 130 kPa a
17 ... 525 inH₂O a

1300В mbar
130 kPa a
525 inH₂O a

32В barВ a
3.2 MPa a
464 psia

160В ...В 5000В mbarВ a
16 ... 500 kPa a
2.32 ... 72.52 psia

5000В mbarВ a
500 kPa a
72.52 psia

32В barВ a
3.2 MPa a
464 psia

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

30В barВ a
3 MPa a
435В psia

160В barВ a
16 MPa a
2320В psia

5.3В ...В 100В barВ a
0.5 ... 10 MPa
76.9В ...В 1450В psia

100В barВ a
10 MPa
1450В psia

160В barВ a
16 MPa a
2320 psia

Low measuring limit

• Measuring cell with silicone oil filling

0 mbar a/0 kPa a/0 psia

• Measuring cell with inert liquid

• for process temperature -20В В°C < П‘ ≤ +60В В°C
  (-4 °F < ϑ ≤ +140 °F)

30 mbar a/3 kPa a/0.44 psia

• for process temperature 60В В°C < П‘ ≤ +100В В°C (max. 85В В°C for measuring cell 30В bar) (140В В°F < П‘ ≤ +212В В°F (max. 185В В°F for measuring cell 435В psi))

30 mbar a + 20 mbar a . ( П‘ - 60В В°C)/В°C
3 kPa a + 2 kPa a . ( П‘ - 60В В°C)/В°C
0.44 psi a + 0.29 psi a . ( П‘ - 140В В°F)/В°F

Upper measuring limit

100% of the max. measuring span (for oxygen measurement max. 100 bar/10 MPa/ 1450 psi and 60В В°C (140В В°F) ambient temperature/process temperature)

Start of scale

Between the measuring limits (infinitely adjustable)

Output

HART

PROFIBUS PA/ 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

• 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

• r ≤ 10

≤ 0.1 %

• 10В <В r ≤ 30

≤ 0.2 %

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

• 250 mbar a/25 kPa a/3.6 psia

≤ (0.15 · r + 0.1) %

• 1300 mbar a/130 kPa a/18.8 psia
  5 bar a/500 kPa a/72.5 psia
  30 bar a/3000 kPa a/435 psia
  100 bar a/10 MPa a/1450 psia

≤ (0.08 · r + 0.16) %

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)

≤ 0.7 mbar/0.07 kPa/0.001015 psi per 10° 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

Degree of protection according to IECВ 60529

IP66 (optional IP66/IP68), NEMA 4X

Temperature of medium

• Measuring cell with silicone oil filling

-40В ...В +100В В°C (-40В ...В +212В В°F)
-20В ...В +100В В°C (-4В ...В +212В В°F) with 30 bar measuring cell

• Measuring cell with inert fill fluid

-20В ...В +100В В°C (-4В ...В +212В В°F)

• In conjunction with dust explosion protection

-20В ...В +60В В°C (-4В ...В +140В В°F)

Ambient conditions

• Ambient temperature

• Transmitters

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

• Display readable

-30В ...В +85В В°C (-22В ...В +185В В°F)

• Storage temperature

-50В ...В +85В В°C (-58В ...В +185В В°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 IECВ 61326 and NAMURВ NEВ 21

Design

Weight (without options)

≈ 4.5 kg (≈ 9.9 lb)

Enclosure material

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

Wetted parts materials

• Seal diaphragm

Stainless steel, mat. no. 1.4404/316L or Hastelloy C276, mat. no. 2.4819, Monel, mat. no. 2.4360, tantalum or gold

• Process flanges and sealing screw

Stainless steel, mat. no.В 1.4408, Hastelloy C4, mat. no. 2.4602 or Monel, mat. no. 2.4360

• O-ring

FPM (Viton) or optionally: PTFE, FEP, FEPM and NBR

Measuring cell filling

Silicone oil or inert fill fluid (for oxygen measurement, maximum pressure 100В bar (1450В psi) at 60В В°C (140В В°F))

Process connection

Вј-18В NPT and flange connection with fastening thread M10 to DINВ 19213 or ⁷/₁₆-20В UNF to IECВ 61518/DINВ ENВ 61518

Material of mounting bracket

• Steel

Sheet-steel, mat. no.В 1.0330, chrome-plated

• Stainless steel

Sheet stainless steel, mat. no. 1.4301 (SS 304)

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 = 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

• 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