VEGA SON71 User Manual

VEGASON

71 - 2 … 75 - 2

TIB • Technical Information • Operating Instructions

Pulse-Echo measuring system

1 5.00

2 5.00

Two channel operation

1 2 3 4

2-wire level measurement or differential measurement

VEGASON

Operating range up to - 5 m

- 10 m - 20 m - 30 m

Compact unit with modules for relay and current outputs

Linearization

Sensor optimization

VEGASON 71 - 2 and 73 - 2 approved in hazardous areas of Ex - zone 1

VEGA Grieshaber KG

Electronic level measurement

Am Hohenstein 113

Postfach 11 42

D-77757 Schiltach

Phone [phone]

Fax [phone]

															Contents
							Introduction						Contents of the instruction manual .....................................................		4
													Safety information ...............................................................................		4
													Special instructions for use in Ex-Zone 1 ...........................................		4
													Product description .............................................................................		4
							Technical Information						Configuration of measuring system ....................................................		5
													Technical data ....................................................................................		6
													Dimensional drawing ..........................................................................		8
													Measuring range .................................................................................		9
													Installation examples -	for liquid tanks ..........................................	10
													-	for solids ..................................................	11
													Installation errors (tanks or silos) ......................................................		11
													Electrical connections .......................................................................		12
							Operating surface						Indication and operating elements ....................................................		13
													Operating ..........................................................................................		14
							Start-up						Flow diagram for start-up	..................................................................	15
													Mode listing 0, general parameter adjustments ................................		16
							Adjustment						Level measurement ........................................................................		20
													Selection of the adjustment procedure .............................................		20
													Adjustment in m without level change ..............................................		21
													Adjustment in % with level change ...................................................		21
													Differential measurement ..............................................................		22
													Selection of the adjustment procedure .............................................		22
													Adjustment in m without level change ..............................................		23
							Linearization						Adapting to the vessel geometry ......................................................		24
													Selection of the linearization curves 4 … 6 ......................................		24
													Mode listing 4 (5 and 6) ....................................................................		25
													Display demonstration ......................................................................		25
													Operation ..........................................................................................		25
													Determination of the index markers ..................................................		26
													Linearity protocol ..............................................................................		27
													Programming example .....................................................................		28
							Outputs						Display function
													Allocation of a multiplication factor ........................................		29
													Measuring units and pattern ..................................................		29
													Decimal point ........................................................................		29
													Module for relay outputs 1 … 4
													Two-point level switch ...........................................................		31
													Pump function .......................................................................		33
													Tendency determination ........................................................		35
													Module for current output 1 and 2
													Coordination and course of characteristics ...........................		37

2	71 - 2 … 75 - 2

Contents

Supplementary
programming	Failure processing ............................................................................	38
	Simulation .........................................................................................	39
	Basic adjustment ..............................................................................	40
	Keyword ............................................................................................	40
Sensor optimization	Selection of sensor optimization .......................................................	41
	Mode listing 1 (2) sensor optimization ..............................................	41
	Information for sensor optimization ..................................................	43
	Limitation of the operating range
	Start of operating range / end of operating range .............................	44
	Adapting
	to the
	product type ..........................................................................	45
	to the vessel geometry (liquid) ..........................................................	45
	to solids ............................................................................................	46
	Reduction of echo amplification
	Multiple false echo reduction ............................................................	47
	Storage
	of a false echo profile
	False echo learn ....................................................................	48
	Profile interpolation ...............................................................	49
	Adapting
	to filling and emptying speed
	Rate of product level change ................................................	50
	Limitation
	of the echo amplification
	Max. gain ...............................................................................	51
	Supplementary optimization
	Measuring window ............................................................................	52
	Fail safe ............................................................................................	52
	Real distance ....................................................................................	53
	Basic adjustment ..............................................................................	53
	Supplement
	Protocol of sensor optimization ........................................................	54
	Error codes .......................................................................................	55

71 - 2 … 75 - 2

3

Introduction

Contents of the instruction manual

The Technical Information / Operating Instructions is just called TIB. It contains all necessary information for correct:

-installation

-connection

-start-up

-linearization

-optimization

the Pulse-Echo-measuring system VEGASON 71 - 2 … 75 - 2.

This TIB is supplied as part of the order. Knowledge of the contents is important for correct operation of the indicating instrument.

This TIB accompanies the product and is addressed to technical qualified staff which are trained or have knowledge of the use of level measurement and control equipment.

Safety information

The described module must only be inserted and operated as described in this TIB. Please note that other action can cause damage for which VEGA does not take liability.

VDE-regulations and the security measures valid for the respective applications should be observed.

Special instructions for the use in Ex-Zone 1

The transducers SW 71 … SW 73 (SW 71 applied) are also available in the Ex-flame proofing encapsulation "m". With the type designation SW 72 R and SW 73 R they have the flame proofing

EEx m II T6 and can be used in Ex-Zone 1.

Product description

The Pulse-Echo-measuring system VEGASON 71 – 2 … 75 – 2 enables

-two channel level measurement or

-one differential measurement.

The running periods of reflected sound impulse are evaluated.

The running period is a measure of the distance between sensor (transducer) and product.

The central electronics determines these distances for each channel and converts them into the respective level.

Measurements are indicated on two integral LCdisplays and are either available as current or relay outputs.

For these applications the regulations of the conformity certificate PTB-no. Ex–92.C.2113 as well as the special regulations acc. to VDE have to be observed. The above mentioned conformity certificate accompanies the instrument.

A measuring system consists of

-one central electronics and

-two sensors (transducer).

Each sensor has its own temperature sensor for compensation of the temperature influence on the running period. The measuring data and temperature information are conducted via coax connection cable.

The measuring system is provided with factory-set parameters so that immediate use is possible for most applications.

The adjustment procedures and sensor optimizations etc. can be programmed directly via a keyboard on the central electronics.

4	71 - 2 … 75 - 2

Technical Information

Configuration of a measuring system

Inputs Central electronics

Measuring data of	1
transducer 1
channel 1	2
Measuring data of	1	2	3	4

transducer 2 channel 2

VEGASON

Transducer

Outputs

Multi function indicator

Module for relay output 1 and 2 Module for relay output 3 and 4

Module for current output 1 and 2

0 … 20 mA

Fail safe relay and fail safe-LEDs

Central electronics consists of:		Further instruments (option):
- plastic housing with cover and integral		-	indicating instrument VEGADIS 171 A
-	operating elements (5 buttons)		(connection to 0 … 20 mA)
-	diodes (LED-indication)	-	overvoltage arrester

-two multi function indications (LC-displays)

-power supply

-memory (EEPROM, no buffer battery required)

-outputs as modules (see above)

-terminals for power supply, inputs and outputs

71 - 2 … 75 - 2

5

Technical Information

Technical data

Power supply

operating voltage

standard

Unenn

= 24 V AC (16 … 42 V), 50 / 60 Hz

= 24 V DC (16 … 60 V)

option

Unenn

= 230 V AC (90 … 250 V), 50 / 60 Hz

power consumption

at Unenn and at max. load

12 VA / 5 W

fuse

for version

16 … 42 V AC or 16 … 60 V DC = 2 A

for version

90 … 250 V AC = 500 mA

Type

VEGASON

71 - 2

72 - 2

73 - 2

74 - 2

75 - 2

Minimum distance

at liquids or

0,3 m

0,5 m

––

––

––

solids

particle size ≥ 5 mm

––

––

0,8 m

0,8 m

1,0 m

particle size ≤ 5 mm

––

––

1,0 m

1,1 m

1,2 m

Maximum distance

product and process dependent

5 m

5 m

10 m

20 m

30 m

Input data

min. measuring distance

10 cm

10 cm

10 cm

10 cm

10 cm

display in

mm

cm

cm

cm

cm

scanning

3 mm

3 mm

3 mm

3 mm

3 mm

measuring frequency

50 kHz

40 kHz

33 kHz

22 kHz

16 kHz

measuring rate

0,4 sec.

0,4 sec.

0,4 sec.

0,5 sec.

0,7 sec.

angle of reflection at –3 dB)

7°

9°

12°

12°

12°

linearity error acc. to

empty / full adjustment

< 0,1 % of measuring range

temperature error of electronics

0,1 % / 10 k of measuring range

Sensor data

number of transducer

2

transducer housing

PVDF

impedance adapter

PE

mounting tube

type 71 … 73

PVDF, thread 1" BSP

type 74 and 75

RCH 1000, thread 1" BSP

temperature sensor

integrated in transducer

permissible excess pressure

in the vessel

- transducer 71 … 75

max. 1 bar

- transducer 71 R … 73 R

max. 1 bar

connection cable

coax line type RG 58

line length

standard

5 m

maximum

300 m

cable diameter

approx. 5 mm

Indication

LC-display

2, 4-digits each

Relay output

max. 2 modules

2 relay 1 spdt per relay each

contact material

AgCdO and Au plated

min.

turn-on voltage

10 mV

switching current

10 A

max.

turn-on voltage

250 V AC, 60 V DC

switching current

2 A AC, 1 A (DC)

max.

breaking capacity

125 VA, 60 W

6	71 - 2 … 75 - 2

Technical Information

Technical data		(continuation)
Current outputs		module	-	with	2 outputs
			-	range	0/4 … 20 mA
			-	resolution	0,05 % of range
			-	load	max. 500 Ohm
			-	load dependent
				failure	at 0 … 500 Ohm, < 0,2 % related to the range
		or
		module	-	as above	however with 2 floating outputs each
Fail safe function		1 relay for both channels			1 spdt
		contact data			as described under relay outputs
		2 fail safe-LEDs			separately per channel
Ambient		ambient temperature on			–20°C … +80°C / -4 … 176°F
conditions		- transducer 71 … 75
		- transducer 71 R … 73 R			–20°C … +55°C / -4 … 131°F
		- central electronics			–20°C … +60°C / -4 … 140°F
		storage and transport temperature			–20°C … +80°C / -4 … 176°F
Environmental		protection
protection		- transducer 71 … 75			IP 68
		- transducer 71 R … 73 R			IP 68
		- housing of central electronics			IP 65
		protection class			II
Electrical		terminals			for max. 1 x 1,5 mm2
connection		cable entry			2 x Pg 7
					1 x Pg 13,5, max. 5 x Pg 13,5
Material		transducer			PVDF
		housing of central electronics			Polycarbonate
Weight		VEGASON			71 … 73	74 and 75
		1 transducer (without cable)			approx. 0,8 kg	approx. 1,5 kg
		central electronics			approx. 1,9 kg	approx. 1,9 kg
Dimensions					see dimensional drawing on following page

71 - 2 … 75 - 2

7

Technical Information

Dimensional drawing

(dimensions in mm)

Flanged gimbal

appr. 100 appr. 155

				*174		5	90
Min.distancefor	furtherinstruments	1				Mountingdimensions
		2
		40
		1	2	3	4
					*229
Flange						*
DN 150					VEGASON
PN 16

Central electronics

Pg 13,5	Pg 7
	G 1 A
	45

Sensor SW Sensor 71 … 73 SW 72 / 73

71 R … 73 R

ø95

91

0,5…0,8 m

Min. distance

Thread

1" BSP

54

										90	133

Sensor

SW 74 / 75

ø145

93

m
0,8…1,2		Min. distance

8	71 - 2 … 75 - 2

Technical Information

Measuring range

The measuring ranges described below are max.	The location of the sensors should be carefully
values and can change dependent on process	selected and it should be noted that no struts,
conditions.	edges or material inflow impede the measurement
	(see installation recommendations page 10
	and 11).
for liquids
VEGASON 71 - 2		72 - 2	73 - 2 74 - 2 75 - 2

	Reference pane
Min.
distance	0,3 m	0,5 m	0,8 m	0,8 m	1,0 m
Measuring
range
	5 m	5 m	10 m	20 m	30 m

for solids
	VEGASON 73 - 2		74 - 2	75 - 2
	Reference pane
Min.	particle size≥ 5 mm
distance		0,8 m	0,8 m	1,0 m
	particle size≤ 5 mm	1,0 m	1,1 m	1,2 m
Measuring
range
		10 m	20 m	30 m

71 - 2 … 75 - 2

9

Technical Information

Installation example for liquid tanks

- Select sensor type and installation in relation to

- In case of round tank ceilings, the sensor should

max. level to be measured.

be installed on a socket piece not located in the

- Protect the inner side of the socket piece for

centre or on an opening (on half radius).

corrosion or use non-corrosive material.

In closed vessels:

Tube or direct mounting. If socket

piece length > 100 mm or for

VEGASON 72 / 73 or > 150 mm for

VEGASON 74 / 75 are required

(max. level). Note the dimensions

in the following table.

Socket piece length

																															Max. socket piece length L at:
																																				(dimensions in mm)
																L			VEGASON								71 - 2									72 - 2		73 - 2		74 - 2	75 - 2
									45°
																			at socket 100								300									400		400		–––	–––
																			piece ø
								ø										150									300									500		400		300	300
																		200									–––									–––		500		400	400
																		250									–––									–––		600		500	500
																		300									–––									–––		–––		600	600
																		350									–––									–––		–––		700	700
																			Min. distance								300									500		800		800	1000
in open vessels:																					Mounting via
Mounting by means																					access hatch:
of bracketry																					Simple direct mounting

10	71 - 2 … 75 - 2

Technical Information

Installation examples for solids

-Select sensor type and installation in relation to max. level to be measured.

-Protect the inner side of the socket piece from corrosion or use non-corrosive material.

-Always direct the sensor (sound pulse) to the centre of the silo.

-Install sensor as far as possible from the filling entry.

-When using round ceilings, mount the sensor half way between silo middle and edge.

Installation with cylindrical	Installation with flanged							Installation in open silos via
socket piece	gimbal							bracketry

											socket piece length L at:
											(dimensions in mm)
					L						73 - 2	74 - 2	75 - 2
45°								VEGASON
								at socket 100			400	–––	–––
								piece ø
ø	150										400	300	300
	200										500	400	400
	250										600	500	500
	300										–––	600	600
	350										–––	700	700
								Min. distance			800 …	800 …	1000 …
											1000	1100	1200

Installation errors

(at tanks or silos)

The socket piece	The socket piece	Access too small.	Socket pieces in
should not be	should not have		the centre of
covered by the	weldment joints.		round tank ceilings
product.			are not recom-		The beam should
			mended for the		not cross the
			sensor installation.		material inflow.
71 - 2 … 75 - 2					11

								Technical Information
Electrical connection
						17 18	19		+	-	+	-
9	10	11	12	13 14	15 16			20	21	22	23	24

1 2

Fuse Type TR5

Manufacturer e.g. Messrs. Wickmann Current values see technical data page 6

1…………2 …………… 3………...4			1………2
Relay output			Current output
3	4	Service socket
		5

Fail safe relay output

Supply voltage

	1	6	7
	2
	Service
	switch
	Attention!		8

Channel 1

Channel 2

respective max. line length = 300 m

Sensor 1

Sensor 2

Note:

During operation the transducer is pulsed with high voltages. It is therefore recommended that first all electrical connections are provided and then the power supply for the instrument switched on.

Standard waterproof dividing box

The connection line to the respective sensors can be extended afterwards as shown.

If must be observed that the max. line length of 300 m is not exceeded.

12		71 - 2 … 75 - 2

Operating surface

Indication and operating elements

Outer view
LED-indication	Units indicator
fault signal	visible in slot
channel 1 and 2	behind window

1 8888

2 8888

1 2 3 4

LED-indication of relay outputs 1…4

Indication of measured values

Inner view

		Indication of
		measured values 1
		MODEFIELD
	8888	Selection of
1		MOD mode
		Cursor position
		Figures raise
2	8888	Figures lower

STO Storage

Operating

Indication of

scheme

measured values 2

PARAMETER FIELD

Mode range

			5.00		m		general reset	0 - 00	…		99
e.g. level 1 … 9 m
			5.00		m
Demonstration form after							sensor optimization 1	1 - 01	…		27
programming of	-	multiplier
	- allocation of decimal point
	-	decimal point e.g.					sensor optimization 2	2 - 01	…		27
			50.0		%
level 0 … 100 %
			5.00		%		linearization curve 4	4.H.01	…		32
			2000		hl		linearization curve 5	5.H.01	…		32
level 0 … 4000 hl
			2000		hl
							linearization curve 6	6.H.01	…		32
							fault signals
							channel 1	E2.01	…		.04
							channel 2	E2.01	…		.04

71 - 2 … 75 - 2

13

Operating surface

Operating

The VEGASON 71 - 2 … 75 - 2 has 3 modes which

If no push button is used for a 60 minutes period,

can be accessed (scrolling) via the MOD-button:

the VEGASON 71 - 2 … 75 - 2 times out and

reverts to the input value display.

Mode:

1.

indication of measured values

2.

mode range

3.

parameter input

1.Indication of measured values

2. Mode range

3.Parameter adjustment

5.00

5.00

MOD

0 00

16.93

MOD

0 - 00

– – – –

MOD

0	99
Cursor position
Figures raise	+
Figures lower	-

	0
Cursor position
Figures raise	+
Figures lower	-
	STO

Indication of measured values:

level in m level in %

and acc. to the demonstration form e.g.

quantity in hl.

For selection of the mode numbers see MODEFIELD. The parameters of the selected mode numbers can be checked or modified in mode 3.

Programming of parameters see PARAMETER FIELD. The parameters of the selected mode can be modified and stored with STO-button. With STO reset to mode 1.

In mode 99 the main stage 0 can be left and stage 1 and 4 … 6 can be selected. The reset to main stage 0 is done in the respective mode 99.

During a parameter adjustment the last mode number used is activated again after each STOcommand and entry to the mode range.

14	71 - 2 … 75 - 2

Start-up

Flow diagram for start-up

Connect sensors with central electronics and supply with operating voltage.

The software version is indicated and the fault signal reacts.

The measuring system is now ready and starts for each separate channel with the commissioning preliminary indication: 0.00 m.

Commissioning, i.e.:

1.Echo limitation from top to bottom.

2.Echo limitation from bottom to top.

3.Formation of a measuring window within which an evaluation of the echo is carried out.

5	6	1	14.94
			!
	4
		2	!
			0.00	m
			0.00	m

After approx. 1 … 3 minutes the measuring system is ready. The fault signal extinguishes. The sensors 1 and 2 adapted to the vessel feature and operate with the parameters of the VEGA-adjustments.

NO

?

YES

Level measurement 1

Level measurement 2

71 - 2 … 75 - 2

5	6	1 !		9.20	m
	4			9.50	m
		2	!

Optimizations are necessary for sensor 1 and / or sensor 2

Sensor 1 determines in vessel 1 the actual distance of 9,20 m

Sensor 2 determines in vessel 2 the actual distance of 9,50 m

15

																												Start-up
Mode listing 0																										general parameters
Function						Mode-no.							Mode description				Parameter										Page
																	(				= factory preset)
						0 - 00							Software version ........................................				e.g. 16.93
						0 - 01 … 09							not used .....................................................				– – – –
Adjustment						0 - 10							Selection of adjustment procedure
channel 1													-	in m without level change .......................			1
													-	per cent correction ..................................			2
						0 - 11							-	in % with level change ...........................			3
													Empty adjustment
													-	distance in m ...........................................			sensor specific										p. 20
						0 - 12							-	................................................level in %			0.0		… 80.0
													Full adjustment
													-	distance in m ...........................................			sensor specific
													-	................................................level in %			100.0			… 20.0
Display						0 - 13							Multiplier								… 9999
function													-	related to 0 % .........................................			0000
						0 - 14							-	.....................................related to 100 %			0000				…	1000		… 9999
						0 - 15							Measuring unit
													- level percentage in m .............................				1										p. 29
													-	level percentage in % .............................			2
													-	volume percentage (scaled) ...................			3
						0 - 16							............................................Decimal point				0.000 …						000.0		… 0000
						0 - 17							Integration time					… 900
																	0
Lineari-						0 - 18							Linearization curves
zation													-	......................................................linear			1
													-	cylindrical tank ........................................			2
													-	not used .................................................			3										p. 24
													- individually programmable curve 4 .........				4
													- individually programmable curve 5 .........				5
													- individually programmable curve 6 .........				6
						0 - 19							not used .....................................................				– – – –
Adjustment						0 - 20							Selection of adjustment procedure
channel 2													-	in m without level change .......................			1
													-	per cent correction .................................			2
						0 - 21							-	in % with level change ...........................			3
													Empty adjustment
													-	distance in m ...........................................			sensor specific										p. 20
						0 - 22							-	................................................level in %			0.0		… 80.0
													Full adjustment
													-	distance in m ...........................................			sensor specific
													-	level in % ................................................			100.0			… 20.0

16	71 - 2 … 75 - 2

Start-up
Mode listing 0							(continuation)														general parameters
Function				Mode-no.			Mode description					Parameter													Page
												(				= factory preset)
Display				0 - 23			Multiplier									… 9999
function							-	related for 0 % ........................................				0000
				0 - 24			-	related for 100 % ....................................				0000				… 1000 … 9999
				0 - 25			Measuring unit
							.............................- level percentage in m					1													p. 29
							-	level percentage in % .............................				2
							-	volume percentage (scaled) ...................				3
				0 - 26			...........................................Decimal point					0.000 …					000.0			… 0000
				0 - 27			Integration time							… 900
												0
Lineari-				0 - 28			Linearization curves
zation							-	......................................................linear				1
							-	cylindrical tank ........................................				2
							-	.................................................not used				3													p. 24
							- individually programmable curve 4 .........					4
							- individually programmable curve 5 .........					5
							- individually programmable curve 6 .........					6
				0 - 29			not used .....................................................					– – – –
Adjustment				0 - 30			Selection of adjustment procedure
differential							- in m without level change .......................					1
measure-				0 - 31			-	percent correction ..................................				2
ment							Adjustment min. difference
							-	.........................................................in m				sensor specific													p. 22
							-	percent correction							… 80.0
				0 - 32								0.0
							Adjustment max. difference
							-	.........................................................in m				sensor specific
							-	..................................percent correction				100.0				… 20.0
Display				0 - 33			Multiplier									… 9999
function							-	.........................................related to 0 %				0000
				0 - 34			-	.....................................related to 100 %				0000				…	1000		… 9999
				0 - 35			Measuring unit
							- level percentage in m .............................					1													p. 29
							-	level percentage in % .............................				2
							-	volume percentage (scaled) ...................				3
				0 - 36			...........................................Decimal point					0.000 …						000.0		… 0000
				0 - 37 … 39			not used .....................................................					– – – –
Display				0 - 40			Display coordination
									1 1			0			= inactive										p. 22
										Display 2		1			= level indication
												2				(channel specific)
										Display 1					= differential indication
				0 - 41 u. 42			not used .....................................................					– – – –

71 - 2 … 75 - 2

17