Endress+Hauser FMB52, FMB53, FMB51, FMB50 Specifications

TI00437P/00/EN/20.16

No. 71316865

Products	Solutions	Services

Technical Information

Deltapilot M

FMB50, FMB51, FMB52, FMB53

Hydrostatic level measurement

Pressure sensor with the CONTITETM measuring cell Condensate-resistant

Application

The device is used for the following measuring tasks:

•Hydrostatic pressure measurement in liquids and paste-like media in all areas of process engineering, process measuring technology, pharmaceuticals and the food industry

•Level, volume or mass measurements in liquids

Your benefits

•Very good reproducibility and long-term stability

•Maximum plant safety provided by one-of-a-kind, condensate-proofed CONTITE measuring cell

•High reference accuracy: ±0.2 % optionally ±0.1 %

•Turn down 100:1

•Standardized platform for differential pressure, hydrostatics, and pressure (Deltabar M – Deltapilot M – Cerabar M)

•Simple, fast commissioning through a user interface designed for real-world applications

•Used for process pressure monitoring up to SIL2, certified to IEC 61508 Edition 2.0 and IEC 61511 by TÜV NORD

•Usage in drinking water: KTW, NSF

Deltapilot M FMB50/51/52/53

Table of contents

Document information . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4
Terms and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
Turn down calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7

Function and system design . . . . . . . . . . . . . . . . . . . . . .8

Device selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Level measurement in closed tanks with pressure overlay . . 11 Density measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Level measurement with automatic density correction (with media changing in the tank) . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical differential pressure measurement with gauge pressure sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Communication and data processing . . . . . . . . . . . . . . . . . . . . 13

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Signal range – 4 to 20 mA HART . . . . . . . . . . . . . . . . . . . . . . . 15 Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Load - 4 to 20 mA HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Dead time, time constant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Dynamic behavior: current output . . . . . . . . . . . . . . . . . . . . . . . 16 Dynamic behavior: HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Dynamic behavior: PROFIBUS PA . . . . . . . . . . . . . . . . . . . . . . . 17 Dynamic behavior: FOUNDATION Fieldbus . . . . . . . . . . . . . . . 17 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Firmware version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Galvanic isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Protocol-specific data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Cable specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Start-up current HART. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Residual ripple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Influence of power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Overvoltage protection (optional) . . . . . . . . . . . . . . . . . . . . . . . 26

Performance characteristics . . . . . . . . . . . . . . . . . . . . 27

Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . 27 Influence of orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Calibration position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Reference accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Thermal change in the zero output and the output span . . . . 28 Total performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Long-term stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Total error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Warm-up period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

General installation instructions . . . . . . . . . . . . . . . . . . . . . . . . 29 FMB50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 FMB51/FMB52/FMB53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Supplementary installation instructions . . . . . . . . . . . . . . . . . . 30 Wall and pipe mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 "Separate housing" version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Oxygen applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 PWIS cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Applications with hydrogen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Special measuring cells for acids, alkalis or sea water

(not FMB50) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Ambient temperature limits . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Process temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Lateral load FMB51 (static) . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Pressure specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Mechanical construction . . . . . . . . . . . . . . . . . . . . . . . 36

Device height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 F31 housing, aluminum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 F15 housing, stainless steel (hygienic) . . . . . . . . . . . . . . . . . . . 37 Diameter of the process isolating diaphragm . . . . . . . . . . . . . 37 Process connections FMB50, FMB51, FMB52 . . . . . . . . . . . . 37 Process connections FMB50, FMB51, FMB52 . . . . . . . . . . . . 38 Process connections FMB50, FMB51, FMB52 - continued . . 39 Process connections FMB50, FMB51, FMB52 - continued . . 40 Process connections FMB50 - continued . . . . . . . . . . . . . . . . . 41 Process connections FMB50 - continued . . . . . . . . . . . . . . . . 42 Process connections FMB51 (rod version) . . . . . . . . . . . . . . . . 44 Process connections FMB52 (cable version) . . . . . . . . . . . . . . 46 Dimensions of FMB53 with F31 housing, suspension clamp and mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Dimensions of FMB53 with F15 housing, suspension clamp and mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Wall and pipe mounting with "Separate housing" version . . . 50 Materials not in contact with process . . . . . . . . . . . . . . . . . . . . 53 Materials in contact with the process . . . . . . . . . . . . . . . . . . . . 56

Operability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Operating concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Onsite operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Operating languages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Remote operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 System integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

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Deltapilot M FMB50/51/52/53

Certificates and approvals . . . . . . . . . . . . . . . . . . . . . . 63

CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 RCM-Tick marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Ex approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 EAC conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Suitability for hygienic processes . . . . . . . . . . . . . . . . . . . . . . . . 63 Certificate of Compliance ASME BPE 2012 (FMB50 only) . . 64 Functional safety SIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Overfill protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 AD2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Pressure Equipment Directive (PED) . . . . . . . . . . . . . . . . . . . . . 64 Manufacturer declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Marine approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Other standards and guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 65 Drinking water approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Classification of process sealing between electrical systems and (flammable or combustible) process fluids in accordance with ANSI/ISA 12.27.01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Inspection certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Calibration; unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Configuration data sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Suspension clamp (FMB53 only) . . . . . . . . . . . . . . . . . . . . . . . . 69

Extension cable shortening kit (FMB53 only) . . . . . . . . . . . . . 69

M12 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Welding necks and Weld-in tool flanges . . . . . . . . . . . . . . . . . 69

Adapter Uni for FMB50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Brief Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Functional safety manual (SIL) . . . . . . . . . . . . . . . . . . . . . . . . . 71

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Installation/Control Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Combination certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Overfill protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Registered trademarks . . . . . . . . . . . . . . . . . . . . . . . . . 73

HART® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

PROFIBUS® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

FOUNDATION™ Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

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Document information

Symbols used	Safety symbols
	Symbol					Meaning
						DANGER!
		DANGER
						This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
		A0011189-EN				serious or fatal injury.
						WARNING!
		WARNING
						This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
		A0011190-EN				serious or fatal injury.
						CAUTION!
		CAUTION				This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
		A0011191-EN				minor or medium injury.
						NOTE!
		NOTICE
						This symbol contains information on procedures and other facts which do not result in
		A0011192-EN				personal injury.

Electrical symbols

Symbol Meaning

Direct current

A terminal at which DC voltage is present or through which direct current flows.

A0018335

Alternating current

A terminal at which alternating voltage is present or through which alternating current

A0018336 flows.

Direct current and alternating current
•	A terminal at which alternating voltage or DC voltage is present.
A0018337 •	A terminal through which alternating current or direct current flows.

Ground connection

A grounded terminal which, as far as the operator is concerned, is grounded via a

A0018338 grounding system.

Protective ground connection

A terminal which must be connected to ground prior to establishing any other connections.

A0018339

Equipotential connection

A connection that has to be connected to the plant grounding system: This may be a A0011201 potential equalization line or a star grounding system depending on national or company

codes of practice.

Tool symbols

Symbol Meaning

Phillips head screwdriver

A0011219

Flat-blade screwdriver

A0011220

Torx screwdriver

A0013442

Hexagon wrench

A0011222

Allen screw

A0011221

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Deltapilot M FMB50/51/52/53

Symbols for certain types of information

Symbol							Meaning
							Permitted
							Indicates procedures, processes or actions that are permitted.
						A0011182
							Preferred
							Indicates procedures, processes or actions that are preferred.
						A0011183
							Forbidden
							Indicates procedures, processes or actions that are forbidden.
						A0011184
							Tip
							Indicates additional information.
						A0011193
							Reference to documentation
							Refers to the corresponding device documentation.
						A0015483
							Reference to page
						A0015484	Refers to the corresponding page number.
							Reference to graphics
							Refers to the corresponding graphic number and page number.
						A0015486
	1.	,		2.		, ...	Series of steps
							Help in the event of a problem
						A0015488
Symbols in graphics
Symbol							Meaning
1, 2, 3, 4 etc.							Numbering for main items
	1.	,		2.		, ...	Series of steps
A, B, C, D etc.							Views
A-A, B-B, etc.							Sections
-							Hazardous area
							Indicates the hazardous area.
						A0011187
.							Safe area (non-hazardous area)
							Indicates the non-hazardous area.
						A0011188

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				Deltapilot M FMB50/51/52/53
Terms and abbreviations
			1
			2
		3
		4
					p
	0
LRL	LRV	URV	URL	MWP	OPL
					A0029505

Position	Term/Abbreviation	Explanation
1	OPL	The OPL (over pressure limit = sensor overload limit) for the sensors
		depends on the lowest-rated element, with regard to pressure, of the
		selected components, i.e. the process connection must be taken into
		consideration in addition to the measuring cell. Also observe pressure-
		temperature dependency. For the relevant standards and additional notes,
		see the " ä 35" section.
		The OPL may be applied for a limited time period.
2	MWP	The MWP (maximum working pressure) for the sensors depends on the
		lowest-rated element, with regard to pressure, of the selected components,
		i.e. the process connection has to be taken into consideration in addition to
		the measuring cell. Also observe pressure-temperature dependency. For the
		relevant standards and additional notes, see the " ä 35" section.
		The MWP may be applied for an unlimited time.
3	Maximum sensor	Range between LRL and URL
	measuring range	This span is the maximum calibratable/adjustable measuring span.
4	Calibrated/Adjusted	Range between LRV and URV
	measuring span	Factory setting: 0...URL
		Other calibrated spans can be ordered with customised settings.
p	-	Pressure
-	LRL	Lower range limit
-	URL	Upper range limit
-	LRV	Lower range value
-	URV	Upper range value
-	TD	Turn down

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Turn down calculation

			1 = 2		3
LRL LRV			URV		URL

A0029545

1Calibrated/Adjusted measuring span

2Zero-based span

3Upper range limit

Example

• Sensor: 10 bar (150 psi)					• Calibrated/Adjusted measuring span: 0...5 bar
• Upper range limit (URL) = 10 bar (150 psi)					(0...75 psi)
					• Lower range value (LRV) = 0 bar
Turn down (TD):					• Upper range value (URV) = 5 bar (75 psi)
TD	=		URL
		|URV	-	LRV|
TD	=	10 bar (150 psi)			= 2
		|5 bar (75 psi)	-	0 bar (0 psi)|

In this example, the TD is thus 2:1.

This span is based on the zero point.

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Deltapilot M FMB50/51/52/53

Function and system design

Device selection

Deltapilot M –

FMB50

FMB51

FMB52

FMB53

Product family

	A0023537	A0023538	A0023539	A0023540
	Compact version	Rod version	Cable version	Cable version with
				Mounting bracket
Field of application	– Level measurement
	– Pressure measurement
Industries	Food, pharmaceuticals, chemicals, power plants, automotive, etc.			Environment (freshwater
				and wastewater)
Process connections	– Thread	– Thread	– Thread	Suspension clamp
	– Flanges	– Flanges	– Flanges
	– Flush-mounted hygienic
	connections
Measuring ranges	From –0.1 to +0.1 (-1.5 to +1.5 psi) bar to –1 bar to +10 bar (-15 to 150 psi)
OPL	Max. 40 bar (600 psi)
Process temperature range	–10 to +100 °C (+14 to	–10 to +85 °C	With PE cable (unmoved): –10 to +70 °C (+14 to +158°F)
	+212°F) (+135 °C (275°F) for	(+14 to +185°F)	With FEP cable (unmoved):
	30 minutes maximum)		–10 to +80 °C (+14 to +176°F)
Ambient temperature range	• Without LCD display: -40 to +85 °C (-40 to +185°F)

•With LCD display: -20 to +70 °C (-4 to +158°F) (extended temperature application range -40 to 85 °C (-40 to +158°F) with restrictions in optical properties such as display speed and contrast)

•Separate housing: -20 to +60 °C (-4 to +140°F)

Reference accuracy	0.2 % (option 0.1 %) depends on the measuring range ä 27
Supply voltage	– 11.5 to 45 V DC (versions with plug-in connection 35 V DC)
	–	For intrinsically safe device versions: 11.5 to 30 V DC
Output	4 to 20 mA with superimposed HART protocol, PROFIBUS PA or FOUNDATION Fieldbus
Options	– Gold/rhodium-coated process isolating diaphragm
	–	3.1 inspection certificate
	– 3A approval and EHEDG approval for FMB50
	–	Specific firmware versions
	–	Initial device settings can be ordered
	– Separate housing
Specialties	–	Absolute resistance to condensate thanks to hermetically sealed CONTITETM cell
	– Maximum flexibility thanks to modular design
	–	Special cleaning of the transmitter to remove paint-wetting substances, for use in paint shops

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FMB50, FMB51, FMB52 universal application

•Modular probe program to ensure optimum process adaptation

•FMB50 compact version: installation in the tank from below or from the side

•FMB51, FMB52 rod and cable extension: installation from above, i.e. easy to retrofit ground tanks, no additional opening in the vessel floor

FMB50 optimized for hygienic applications

•All typical flush-mounted process connections can be supplied

•Welding flanges

•Stainless steel housing

•All the sanitary process connections are gap-free and can be cleaned so that the unit is free of residue, e.g. CIP cleaning

•USDA/H1-approved transfer liquid as per FDA Directive

•3A approval or EHEDG approvals

74 -

TYPE EL

February 2010

A0023536

A0020029

FMB53 for level measurement in water and wastewater

•The housing with the electronic insert is mounted outside shafts and vessels in such a way that it is protected from flooding. The extension cable is secured with a suspension clamp.

•The measuring cell tube made of stainless steel (AISI 316L) and the Alloy process isolating diaphragm allow use in aggressive media such as wastewater for example.

•Extension cable up to 400 m (1312 ft) in length (up to 100 m (328 ft) in Ex-areas) without strain relief.

•Special measuring cell with gold/rhodium coating for applications in which severe hydrogen formation can occur (e.g. digested sludge); ä 32.

•Special measuring cell with gold/platinum coating for acids, alkalis or sea water; ä 32.

Endress+Hauser

9

					Deltapilot M FMB50/51/52/53
Measuring principle
			patm		pmess = pges - patm
					pmess = (patm + phydr.) - patm
			phydr.
			h ~ p
			h	p
			h =
				· g
pges = patm	+ phydr.	pges	patm
					1	2	3
					p= patm + phydr.		patm
							A0023541

Deltapilot M hydrostatic level measurement and measuring principle

1Rear isolating membrane of the CONTITE™ measuring cell

2Measuring element

3Process isolating diaphragm

gGravitational acceleration

hLevel height

p ges	Total pressure = hydrostatic pressure + atmospheric pressure
p atm	Atmospheric pressure
p hydr.	Hydrostatic pressure
p mess	Measured pressure in the measuring cell = hydrostatic pressure

Density of the medium

Due to its weight, a liquid column creates hydrostatic pressure. If the density is constant, the hydrostatic pressure depends solely on the height h of the liquid column.

The CONTITE™ measuring cell, which works on the principle of the gauge pressure sensor, constitutes the core of Deltapilot M. In contrast to conventional gauge pressure sensors, the precision measuring element (2) in the CONTITE™ measuring cell is absolutely protected, situated between the process isolating diaphragm (3) and the rear isolating membrane (1). Thanks to this hermetic sealing of the measuring element, the CONTITE™ measuring cell is absolutely insensitive to condensate/ condensation and aggressive gases. The pressure applied is transferred from the process isolating diaphragm to the measuring element by means of an oil without any loss in pressure.

Any measured errors due to fluctuations in temperature are compensated for in the electronics unit by means of the sensor temperature.

A linearization function with max. 32 points, based on a table entered either manually or semi-automatically, can be activated locally or remotely. This function facilitates measurement in engineering units, and provides a linear output signal for spherical and horizontal cylindrical vessels, and vessels with a conical outlet.

10	Endress+Hauser

Deltapilot M FMB50/51/52/53

Level measurement in closed You can determine the differential pressure in tanks with pressure overlay using two Deltapilot M. The tanks with pressure overlay pressure measured values of the two probes are sent to a signal processing unit such as

Endress+Hauser RMA or a PLC. The signal processing unit or PLC determines the difference in pressure and uses this to calculate the level and the density where necessary.

2	3

1

A0023542

Level measurement in a closed tank with pressure overlay

1Deltapilot 1 measures the total pressure (hydrostatic pressure and top pressure)

2Deltapilot 2 measures the top pressure

3Signal processing unit determines the difference in pressure and uses this to calculate the level

NOTICE

Measured errors can occur.

Large measured errors can occur if the ratio of the level to the top pressure is >1:6. This does not affect reproducibility.

When selecting the measuring cell, make sure you select measuring ranges that are sufficiently wide ( see example).

Example:

•Max. hydrostatic pressure = 600 mbar (9 psi)

•Max. top pressure (Deltapilot 2) = 300 mbar (4.5 psi)

•Max. total pressure, measured with Deltapilot 1 = 300 mbar (4.5 psi) + 600 mbar (9 psi) = 900 mbar (13.5 psi) measuring cell to be selected: 0 to 1200 mbar (0 to 18 psi)

•Max. pressure, measured with Deltapilot 2: 300 mbar (4.5 psi) measuring cell to be selected: 0 to 400 mbar (6 psi)

NOTICE

Possibility of probe 2 flooding during differential pressure measurement.

Measured errors can occur.

When installing, make sure that probe 2 cannot be flooded.

Endress+Hauser

11

		Deltapilot M FMB50/51/52/53
Density measurement	You can measure the density in tanks with pressure overlay using two Deltapilot M and a signal
	processing unit or a PLC. The signal processing unit or the PLC calculates the density from the known
	distance between the two Deltapilot M devices h and the two measured values p1 and p2.
		2
		3
		p2
		h
		p1
		1
		A0023544
	Level measurement in a closed tank with pressure overlay
	1	Deltapilot 1 determines pressure measured value p1
	2	Deltapilot 2 determines pressure measured value p2
	3	Signal processing unit determines the density from the two measured values p1 and p2 and the distance h

Level measurement with automatic density correction (with media changing in the tank)

Level measurement with automatic density correction is possible in conjunction with a limit switch such as Liquiphant and a PLC. The limit switch always switches at the same level. In the switch point, the signal processing unit determines the corrected density from the pressure of the Deltapilot M currently measured and the known distance between Deltapilot M and the limit switch. The signal processing unit then calculates the level from the new density and the measured pressure of the Deltapilot M.

3

2

h

1

A0023546

Level measurement with automatic density correction

1Deltapilot M

2Liquiphant

3PLC

12	Endress+Hauser

Deltapilot M FMB50/51/52/53

Electrical differential pressure measurement with gauge pressure sensors

			Deltapilot M
			520
			FXN
			1	1
		Fieldgate	Multidrop-Connector
		FXA520	FXN520
			2
				A0023549
	1	Shut-off valves
	2	e.g. filter
	In the example given, two Deltapilot M devices (each with a gauge pressure sensor) are interconnected.
	The pressure difference can thus be measured using two independent Deltapilot M devices.
	!	WARNING
	Risk of explosion!
	If using intrinsically safe devices, strict compliance with the rules for interconnecting intrinsically
		safe circuits as stipulated in IEC60079-14 (proof of intrinsic safety) is mandatory.
Communication and data	• 4 to 20 mA with HART communication protocol
processing	• PROFIBUS PA
	– The Endress+Hauser devices meet the requirements of the FISCO model.
	– Due to the low current consumption of 11 mA ± 1 mA, the following number of devices can be
		operated on one bus segment if installing as per FISCO:

– up to 8 Deltapilot M for Ex ia, CSA IS and FM IS applications

– up to 31 Deltapilot M for all other applications, e.g. in non-hazardous areas, Ex nA, etc. Further information on PROFIBUS PA can be found in Operating Instructions BA00034S "PROFIBUS DP/PA: Guidelines for planning and commissioning" and in the PNO Guideline.

• FOUNDATION Fieldbus

– The Endress+Hauser devices meet the requirements of the FISCO model.

– Due to the low current consumption of 16 mA ± 1 mA, the following number of devices can be operated on one bus segment if installing as per FISCO:

– up to 6 Deltapilot M for Ex ia, CSA IS and FM IS applications

– up to 22 Deltapilot M for all other applications, e.g. in non-hazardous areas, Ex nA, etc. Further information on FOUNDATION Fieldbus, such as requirements for bus system components can be found in Operating Instructions BA00013S "FOUNDATION Fieldbus Overview".

Endress+Hauser

13

Deltapilot M FMB50/51/52/53

Input

Measured variable				Hydrostatic pressure
Measuring range
Sensor		Maximum sensor measuring				Smallest calibratable		MWP	OPL	Vacuum	Option 3)
		range				measuring span				resistance 2)
		lower (LRL) 4)		upper (URL)		(preset at the factory) 1)				Synthetic oil/
										Inert oil
[bar (psi)]		[bar (psi)]		[bar (psi)]		[bar (psi)]		[bar (psi)]	[bar (psi)]	[barabs (psiabs)]
0.1	(1.5)	–0.1 (-1.5)		+0.1	(+1.5)	0.01	(0.15)	2.7 (40.5)	4 (60)	0.01/0.04	1C
										(0.145/0.6)
0.4	(6)	–0.4 (-6)		+0.4	(+6)	0.02	(0.3)	5.3 (79.5)	8 (120)		1F
1.2	(18)	–1 (-15)		+1.2	(+18)	0.06	(1)	16 (240)	24 (360)		1H
4 (60)		–1 (-15)		+4 (+60)		0.2 (3)		16 (240)	24 (360)		1M
10 (150)		–1 (-15)		+10 (+150)		0.5 (7.5)		27 (405)	40 (600)		1P

1)Factory calibration Turn down: Max 20:1, higher on request.

2)The vacuum resistance applies to the measuring cell at reference conditions.

3)Product Configurator, "Sensor range" ordering feature

4)By default, the device is set to a lower range limit of 0 bar. Please specify in the order if the lower range limit is to be set to a different default value.

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Deltapilot M FMB50/51/52/53

Output

Output signal

• 4 to 20 mA with superimposed digital communication protocol HART 6.0, 2-wire

•Digital communication signal PROFIBUS PA (Profile 3.02)

•Digital communication signal FOUNDATION Fieldbus

Output	Option 1)
4 to 20mA HART	2
PROFIBUS PA	3
FOUNDATION Fieldbus	4

1)Product Configurator, "Output" ordering feature

Signal range –	3.8 to 20.5 mA
4 to 20 mA HART
Signal on alarm	As per NAMUR NE 43

•4 to 20 mA HART Options:

–Max. alarm: can be set from 21 to 23 mA (Factory setting: 22 mA)

–Hold measured value: last measured value is held

–Min. alarm: 3.6 mA

•PROFIBUS PA: can be set in the Analog Input block,

Options: Last Valid Out Value (factory setting), Fail-safe Value, Status Bad

•FOUNDATION Fieldbus: can be set in the Analog Input block,

Options: Last Good Value, Fail-safe Value (factory setting), Wrong Value

Load - 4 to 20 mA HART

RLmax
[ ]
1456
1239
804
369
11.5		20		30	40 45	U
		1				[V]
				2
3	RLmax			U – 11.5 V
				23 mA

A0023090

Load diagram

1Power supply 11.5 to 30 V DC for intrinsically safe device versions

2Power supply 11.5 to 45 V DC (versions with plug-in connector 35 V DC) for other types of protection and for uncertified device versions

RLmax Maximum load resistance

U Supply voltage

When operating via a handheld terminal or via a PC with an operating program, a minimum communication resistance of 250 must be taken into account.

Endress+Hauser

15

Deltapilot M FMB50/51/52/53

Dead time, time constant

I
100 %
90 %
63 %
t1	t2	t
		t3

A0019786

Presentation of the dead time and the time constant

Dynamic behavior:
		Type	Dead time (t1)	Time constant T63 (= t2) [ms]	Time constant T90 (= t3) [ms]
current output
			[ms]
	max.	FMB50	60	90	210
	max.	FMB51
		FMB52	500	250	-
		FMB53
Dynamic behavior: HART
		Type	Dead time (t1)	Dead time (t1) [ms] +	Dead time (t1) [ms] +
			[ms]	Time constant T63 (= t2) [ms]	Time constant T90 (= t3) [ms]
	min.	FMB50	220	310	370
	max.		1020	1110	1170
	min.	FMB51	660	910	-
		FMB52
	max.		1460	1710	-
		FMB53

Reading cycle

•Acyclic: max. 3/s, typical 1/s (depends on command # and number of preambles)

•Cyclic (Burst): max. 3/s, typical 2/s

The Deltapilot M commands the BURST MODE function for cyclic value transmission via the HART communication protocol.

Cycle time (update time)

Cyclic (Burst): min. 300 ms

Response time

•Acyclic: min. 330 ms, typical 590 ms (depends on command # and number of preambles)

•Cyclic (Burst): min. 160 ms, typical 350 ms (depends on command # and number of preambles)

16	Endress+Hauser

Deltapilot M FMB50/51/52/53

Dynamic behavior:
		Type	Dead time (t1)	Dead time (t1) [ms] +	Dead time (t1) [ms] +
PROFIBUS PA
			[ms]	Time constant T63 (= t2) [ms]	Time constant T90 (= t3) [ms]
	min.	FMB50	95	185	245
	max.		1195	1285	1345
	min.	FMB51	535	785	-
		FMB52
	max.		1635	1885	-
		FMB53

Reading cycle

•Cyclic: max. 30/s (dependent on the number and type of function blocks used in a closed-control loop)

•Acyclic: typical 25/s

Cycle time (update time)

min. 100 ms

The cycle time in a bus segment in cyclic data communication depends on the number of devices, on the segment coupler used and on the internal PLC cycle time.

Response time

•Cyclic: approx. 8 to 13 ms (depends on Min. Slave Interval)

•Acyclic: approx. 23 to 35 ms (depends on Min. Slave Interval)

Dynamic behavior:
			Type		Dead time (t1)	Dead time (t1) [ms] +	Dead time (t1) [ms] +
FOUNDATION Fieldbus
					[ms]	Time constant T63 (= t2) [ms]	Time constant T90 (= t3) [ms]
	min.		FMB50		105	195	255
	max.				1105	1195	1255
	min.		FMB51		545	795	-
			FMB52
	max.				1545	1795	-
			FMB53
	Reading cycle
	• Cyclic: max. 10/s (dependent on the number and type of function blocks used in a closed-control
	loop)
	• Acyclic: typical 5/s
	Cycle time (update time)
	Cyclic: min. 100 ms
	Response time
	• Cyclic: max. 20 ms (for standard bus parameter settings)
	• Acyclic: typical 70 ms (for standard bus parameter settings)
Damping	A damping affects all outputs (output signal, display).
	• Via on-site display, handheld terminal or PC with operating program, continuous from 0...999 s
	• Via DIP-switch on the electronic insert, switch position
	"on" (= set value) and "off" (= damping switched off)
	• Factory setting: 2 s
Firmware version
	Designation							Option 1)
	01.00.zz, FF, DevRev01							76
	01.00.zz, PROFIBUS PA, DevRev01							77
	01.00.zz, HART, DevRev01							78
	1)	Product Configurator, "Firmware version" ordering feature

Endress+Hauser

17

Deltapilot M FMB50/51/52/53

Galvanic isolation	The following devices have a galvanic isolation between electronic and probe:
	• FMB51, FMB52, FMB53
	• FMB50 with separate housing
Protocol-specific data	HART
	Manufacturer ID	17 (11 hex)
	Device Type Code	35 (23 hex)
	Device Revision	01 (01 hex) - SW version 01.00.zz
	HART specification	6
	DD Revision	• 01 (Dutch)
		• 02 (Russian)
	Device description files	Information and files can be found:
	(DTM, DD)	• www.endress.com
		• www.hartcomm.org
	HART load	Min. 250
	HART device variables	The measured values can be freely assigned to the device variables:
		Measured values for PV (primary variable)
		• Pressure
		• Level
		• Tank content
		Measured values for SV, TV (second and third variable)
		• Pressure
		• Level
		Measured values for QV (fourth variable)
		• Temperature
	Supported functions	• Burst mode
		• Additional Transmitter Status
		• Device Locking
		• Alternative operating modes

PROFIBUS PA

	Manufacturer ID	17 (11 hex)
	Ident number	1554 hex
	Profile Version	3.02
		• SW Version 01.00.zz
	GSD Revision	5
	DD Revision	1
	GSD File	Information and files can be found:
		• www.endress.com
	DD Files
		• www.profibus.org
	Output values	Measured values for PV (via Analog Input Function Block)
		• Pressure
		• Flow
		• Level
		• Tank content
		Measured values for SV
		• Pressure
		• Temperature

18	Endress+Hauser

Deltapilot M FMB50/51/52/53

Input values	Input value sent from PLC, can be shown on display
Supported functions	• Identification & Maintenance
	Simple device identification via control system and nameplate
	• Condensed status1)
	• Automatic ident number adaptation and switchable to following ident
	numbers ):
	– 9700: Profile-specific transmitter identification number with the
	"Classic" or "Condensed" status".
	– 1503: Compatibility mode for the old Deltapilot M (DB50, DB50L,
	DB51, DB52, DB53).
	– 1555: Identification number for the new Deltapilot M (FMB50,
	FMB51, FMB52, FMB53).
	• Device locking: The device can be locked by hardware or software.

1)Only with Profile Version 3.02

Data of the FOUNDATION Fieldbus interface

Basic data

Device Type	0x1023
Device Revision	01 (hex)
DD Revision	0x01021
CFF Revision	0x000102
ITK Version	5.2.0
ITK Certification Driver No.	IT067500
Link-Master (LAS) capable	Yes
Link Master / Basic Device	Yes; Factory setting: Basic Device
selectable
Number of VCRs	44
Number of Link Objects in VFD	50
Number of FB-Schedule Objects	40

Virtual communication references (VCRs)

Permanent Entries	44
Client VCRs	0
Server VCRs	5
Source VCRs	8
Sink VCRs	0
Subscriber VCRs	12
Publisher VCRs	19

Link settings

Slot time	4
Min. inter PDU delay	12
Max. response delay	40

Endress+Hauser

19

							Deltapilot M FMB50/51/52/53
	Transducer Blocks
	Block		Content			Output values
	TRD1 Block		Contains all parameters related to the measurement			• Pressure or level (channel 1)
						• Process temperature (channel 2)
						• Measured pressure value
							(channel 3)
						• Max. pressure (channel 4)
						•	Level before linearization
							(channel 5)
	Diagnostic		Contains diagnostic information			• Error code via DI channels
	Block						(channel 10 to 15)
	Display Block		Contains parameters to configure the onsite display			No output values
	Function blocks
	Block	Content		Number			Execution time	Functionality
				of
				blocks
	Resource	The Resource Block contains all the data that		1				enhanced
	Block	uniquely identify the device. It is an electronic
		version of a nameplate of the device.
	Analog Input	The AI Block receives the measuring data from		2			25 ms	enhanced
	Block 1	the Sensor Block, (selectable via a channel
	Analog Input	number) and makes the data available to other
	Block 2	function blocks at its output. Enhancement:
		digital outputs for process alarms, fail safe mode.
	Digital Input	This block contains the discrete data of the		1			20 ms	Standard
	Block	Diagnose Block (selectable via a channel number
		10 to 15) and provides them for other blocks at
		the output.
	Digital Output	This block converts the discrete input and thus		1			20 ms	Standard
	Block	initiates an action (selectable via a channel
		number) in the DP Flow Block or in the TRD1
		Block. Channel 20 resets the counter for max.
		pressure transgressions value and Channel 21
		resets the Totalizer.
	PID Block	The PID Block serves as a proportional-integral-		1			40 ms	Standard
		derivative controller and is used almost
		universally for closed-loop-control in the field
		including cascade and feedforward. Input IN can
		be indicated on the display. The selection is
		performed in the Display Block
		(DISPLAY_MAIN_LINE_CONTENT).
	Arithmetic	This block is designed to permit simple use of		1			35 ms	Standard
	Block	popular measurement math functions. The user
		does not have to know how to write equations.
		The math algorithm is selected by name, chosen
		by the user for the function to be performed.
	Input Selector	The Input Selector Block facilitates the selection		1			30 ms	Standard
	Block	of up to four inputs and generates an output
		based on the configured action. This block
		normally receives its inputs from AI Blocks. The
		block performs maximum, minimum, average
		and ‘first good’ signal selection. Inputs IN1 to IN4
		can be indicated on the display. The selection is
		performed in the Display Block
		(DISPLAY_MAIN_LINE_1_CONTENT).

20	Endress+Hauser

Deltapilot M FMB50/51/52/53

Block	Content	Number	Execution time	Functionality
		of
		blocks
Signal	The Signal Characterizer Block has two sections,	1	40 ms	Standard
Characterizer	each with an output that is a non-linear function
Block	of the respective input. The non-linear function is
	generated by a single look-up table with
	21 arbitrary x-y pairs.
Integrator	The Integrator Block integrates a variable as a	1	35 ms	Standard
Block	function of the time or accumulates the counts
	from a Pulse Input Block. The block may be used
	as a totalizer that counts up until reset or as a
	batch totalizer that has a setpoint, where the
	integrated or accumulated value is compared to
	pre-trip and trip settings, generating a binary
	signal when the setpoint is reached.
Additional function block information:
Instantiate Function Block				YES
Number of instantiate blocks				20

Endress+Hauser

21

Deltapilot M FMB50/51/52/53

Power supply

! WARNING

Incorrect connection can limit electrical safety!

When using the measuring device in hazardous areas, installation must comply with the corresponding national standards and regulations and the Safety Instructions or Installation or Control Drawings ä 71 ff, "Safety instructions" and "Installation/Control Drawings" ordering features.

All explosion protection data are given in separate documentation which is available upon request. The Ex documentation is provided with all Ex-systems as standard ä 71 ff, "Safety instructions" and "Installation/Control Drawings" ordering features.

According to IEC/EN61010 a suitable disconnector has to be installed for the device

HART: Overvoltage protection HAW569-DA2B for the non-hazardous area, ATEX II 2 (1) Ex ia IIC and IEC Ex ia can be ordered as an option (see "Ordering information" ordering feature).

Protective circuits against reverse polarity, HF influences and overvoltage peaks are installed.

The digital communication signal is transmitted to the bus via a 2-wire connection. The bus also provides the power supply.

Terminal assignment

1

7
6	-	+
		2
5
4
		3

A0023505

Electrical connection

1External grounding terminal

2Internal grounding terminal

3Supply voltage ä 22

44...20 mA for HART devices

5For HART and FOUNDATION Fieldbus devices: With a handheld terminal, all the parameters can be configured anywhere along the bus line via menu operation.

6Terminals

7For HART devices: test terminals, see section "Taking 4 to 20 mA test signal"

Supply voltage

4 to 20 mA HART

Type of protection		Supply voltage
•	Intrinsically safe	11.5 ... 30 V DC
• Other types of protection		11.5 to 45 V DC (versions with plug-in connection 35 V DC)
•	Devices without certificate

Taking 4 to 20 mA test signal

A 4 to 20 mA test signal may be measured via the test terminals without interrupting the measurement.

22	Endress+Hauser

Deltapilot M FMB50/51/52/53

PROFIBUS PA

• Version for non-hazardous areas: 9 to 32 V DC

FOUNDATION Fieldbus

• Version for non-hazardous areas: 9 to 32 V DC

Current consumption	• PROFIBUS PA: 11 mA ± 1 mA, switch-on current corresponds to IEC 61158-2, Clause 21
	• FOUNDATION Fieldbus: 16 mA ± 1 mA, switch-on current corresponds to IEC 61158-2, Clause 21
Electrical connection
	Cable entry	Degree of protection	Option 1)
	M20 gland	IP66/68 NEMA 4X/6P	A
	G ½" thread	IP66/68 NEMA 4X/6P	C
	NPT ½" thread	IP66/68 NEMA 4X/6P	D
	M12 plug	IP66/67 NEMA 4X/6P	I
	7/8" plug	IP66/68 NEMA 4X/6P	M
	HAN7D connector, 90 deg	IP65	P
	PE cable 5m 2)	IP66/68 NEMA4X/6P + pressure compensation via cable	S
	M16 valve connector	IP64	V

1)Product Configurator, "Electrical connection" ordering feature

2)Only for FMB50

PROFIBUS PA

The digital communication signal is transmitted to the bus via a 2-wire connection. The bus also provides the power supply. For further information on the network structure and grounding, and for further bus system components such as bus cables, see the relevant documentation, e.g. Operating Instructions BA00034S "PROFIBUS DP/PA: Guidelines for planning and commissioning" and the PNO Guideline.

FOUNDATION Fieldbus

The digital communication signal is transmitted to the bus via a 2-wire connection. The bus also provides the power supply. For further information on the network structure and grounding and for further bus system components such as bus cables, see the relevant documentation, e.g. Operating Instructions BA00013S "FOUNDATION Fieldbus Overview" and the FOUNDATION Fieldbus Guideline.

Terminals	• Supply voltage and internal ground terminal: 0.5 2.5 mm² (20... ...				14 AWG)
	• External ground terminal: 0.5 ...	4 mm² (20 14 AWG)...
Cable entry
	Approval		Type		Clamping area
	Standard, CSA GP
	ATEX II1/2G or II2G Ex ia,		Plastic M20x1.5		5 to 10 mm (0.2 to 0.39 in)
	IEC Ex ia Ga/Gb or Ex ia Gb,
	FM/ CSA IS
	ATEX II1/2D Ex t, II1/2GD Ex ia,
	II3G Ex nA,		Metal M20x1.5 (Ex e)		7 to 10.5 mm (0.28 to 0.41 in)
	IEC Ex t Da/Db

For other technical data, see the housing section ä 36 ff".

Endress+Hauser

23