KROHNE UFM500 User Manual

3/98

ALTOSONIC

Ultrasonic

Flowmeters

Installation and operating instructions

UFM 400 K/F UFM 500 K/F

software version 6.97.003.00

UFM 500 K, DN65 – 3000 (2 ½” – 120”)

UFM 500 K, DN25 – 50 (1” – 2”)

0.32.30787.7

			Contents
	Part A		System installation and start-up
	1.	Installation in the pipeline		5-7
	1.1	Preliminary information		5-6
	1.2	Pipe flanges		6
	1.3	Grounding		6 + 7
	1.3.1	Standard grounding		6
	1.3.2	Grounding with measuring ground M		6 + 7
	1.3.3	Grounding in hazardous areas		7
	1.4	Pipes with cathodic protection		7
	2.	Electrical connection		7-11
	2.1	Compact flowmeters UFM 400 K and UFM 500 K		7
	2.1.1	Installation location and cable diameter		7
	2.1.2	Connection to power		8
	2.2	Signal converters UFC 400 F and UFC separate systems		8 + 9
	2.2.1	Location		8
	2.2.2	Connection to power		8
	2.2.3	Connection diagrams		9
	2.3	Outputs		9-11
	2.3.1	Abbreviations		9
	2.3.2	Current output I		10
	2.3.3	Frequency (pulse) output F		10
	2.3.4	Status output S		10
	2.3.5	Connection diagrams for outputs		10+11
	3.	(Initial) Start-up		11
	Part B		Signal converter UFC 500...
	4.	Operation of the signal converter		12-22
	4.1	Operating and check elements		12
	4.2	KROHNE operator control concept		12-15
	4.2.1	Description		12
	4.2.2	Overview of functions		13
	4.2.3	Function of keys		14
	4.2.4	Example for setting the signal converter		15
	4.2.5	Reset/Quit-menu, reset totalizers and delete error messages		16
	4.3	Setting table		17-20
	4.4	Error messages		21+22
	4.4.1	Description of errors as shown in display		21
	4.4.2	Error display during measuring (display) mode		22
	4.4.3	Error list in Reset/Quit-menu		22
	5.	Description of functions		22-32
	5.1	Physical units		22
	5.2	Numerical format		22
	5.3	Full-scale range Q100% and meter size		22
	5.4	Flow direction		23
	5.5	Display		23
	5.6	Internal electronic totalizer		24
	5.7	Current output I		25-27
	5.7.1	Application I (fct. 3.3.1)		25
	5.7.2	Other functions for I		25
	5.7.3	Characteristics of current output I		26+27
	5.8	Frequency output F		28-30
	5.8.1	Application F (fct. 3.4.1)		28
	5.8.2	Other functions for F		28+29
	5.8.3	Characteristics of frequency output F		29+30
	5.9	Status output S		30
	5.9.1	Application S		30
	5.10	Low-flow cutoff (SMU) for I + F		30
	5.11	F/R operation for I or F		31
	5.12	Language of display texts		31
	5.13	Coding desired for entry into setting level?		31
	5.14	Behavior of outputs during setting		31
	5.15	User-defined unit		31+32
	5.16	Primary constant GK		32
	5.17	Sound velocity measurement for product identification		32
	5.18	Tag name (measuring point identification)		32

Part C Special applications, functional check and service

6.	Special applications	33
6.1	Use in hazardous areas	33
6.2	Empty measuring tube	33
6.3	High-temperature version (> 180°C / > 356 °F)	33
6.4	Magnetic sensors, setting with hand-held bar magnet	33
7.	Functional checks	34-36
7.1	Test functions of UFC 500... signal converter, fct. 2.1 to 2.4	34
7.1.1	Display test, fct. 2.1	34
7.1.2	Test, current output I, fct. 2.2	34
7.1.3	Test, frequency output F, fct. 2.3	34
7.1.4	Test status output S, fct. 2.4	34
7.1.5	Test, microprocessor, fct. 2.5	34
7.2	Zero check with UFC 500... signal converter	34
7.2.1	Measure zero value	34
7.2.2	Fixed zero value	34
7.3	System check-out	35+36
8.	Service	37+38
8.1	Replacement of electronic unit of signal converter	37
8.2	Replacement of primary head in separate systems	37
8.3	Change of power fuse F1	37
8.4	Turning the display circuit board	38
8.5	Turning the signal converter housing	38
8.6	Available versions of compact flowmeters UFM 400 K and UFM 500 K	38
9.	Voltage settings and spare parts	38

Part D Technical data, measuring principle, block diagram

	10.	Technical data		39-46
10.1		Versions, measuring ranges, accuracies		39
10.2		Primary head UFS 500		40
10.3		Signal converters UFC 400 and UFC 500		40-42
10.4		Dimensions and weights UFM 400 / 500 single beam		43+44
10.5		Dimensions and weights UFM 500 / 500 double beam		45+46
	11.	Measuring principle		47
	12.	Block diagrams		48
12.1		Signal converter UFC 400...		48
12.2		Signal converter UFC 500...		48
	Part E		Index	49+50

How to use these Operating Instructions

∙These installation and operating instructions are divided into 5 parts for easy use.

∙Only Part A (pages 4 - 11) is needed for installation and initial start-up.

∙All ultrasonic flowmeters are factory-set to your order specifications. Therefore, no further adjustments are necessary prior to initial start-up.

Part A Install flowmeter in the pipeline (sect.1), connect up (sect. 2), power the flowmeter (sect. 3), that’s all!

The system is operative.

Part B Operator control and action of the UFC 500... signal converter.

Part C Special applications, service, and functional checks.

Part D Technical data, dimensions, block diagram and measuring principle.

Part E Index.

The purchaser is solely responsible for suitability in accordance with the technical regulations and applicability of our instruments

Warranty may be voided unless these instructions are followed

Available versions

Compact systems	Signal converter	Local display	Primary head
UFM 400 K	UFC 400	no	UFS 500
UFM 500 K	UFC 500	yes	UFS 500
UFM 500 K-EEx	UFC 500-EEx	yes	UFS 500
Remote systems
UFM 400 F	UFC 400 F	no	UFS 500 F
UFM 500 F	UFC 500 F	yes	UFS 500 F
UFM 500 F-EEx	UFC 500 F-EEx	yes	UFS 500 F-EEx

All versions are available as single or double beam flowmeter. The available meter sizes for all versions range from DN 25 (1”) to DN 3000 (120”).

System description

The UFM 400... and UFM 500... ultrasonic flowmeters are precision instruments designed for linear flow measurement of fluids.

The full scale range can be set (factory setting for UFM 400...) between 0.9 and 450 000 m3 per hour or between 3.9 and 1987 200 US gallons per minute, dependent on the meter size DN 25 through 3000 / 1” to 120”. This corresponds to a flow velocity of 0.5 to 18 m/s, which is equivalent to 1.6 to 59 ft/sec.

Items included with supply

Compact		Separate units
− Flowmeter		− Primary head	see
UFM 400	K or	− Signal converter	Table
UFM 500	K	− Signal cable	above

Transporting the compact flowmeter

Important: Never lift UFM 400 K and UFM 500 K compact flowmeters sized DN 100 (4”) and larger by the mounted signal converter housing!

> DN100 (> 4")

	− Installation and operating instructions	Correct	Wrong
	− Certificate of system calibration data
	− Report on factory setting of the signal converter

4

5

Horizontal pipe run

Install in slightly ascending pipe section. If not possible, ensure adequate

velocity

to prevent air, gas or vapor from

Open discharge

Highest point of pipe run

(Air bubbles that are collected in the

measuring tube cause faulty

Preferred

Locations

Downpipe

“Zero“ flow

Velocity.

Lined drained. Faulty measurements

Horizontal and slightly ascending pipelines Always install signal converter (and terminal box) on the top or underside of the pipe,

10. Zero setting is normally not necessary, but it can be checked under flowing conditions as outlined in sect 7.2. Shutoff valves should therefore be provided upstream and/or downstream of the primary head unless the pipe configuration already rules out the possibility of the primary head being drained of fluid. (For zero check see section 7.2).

11. Mixing different fluid products. Install the flowmeter upstream of mixing point or at an adequate distance downstream, minimum distance 30x DN (DN = meter size), otherwise output/display may be unsteady.

12. Ambient temperature:

product temperature ≤ 60 °C/140°F

all systems: -25 to +60°C/ -13 to +140°F product temperature > 60 °C/140 °F

compact systems: -25 to +40 °C/ -13 to +104 °F separate systems: -25 to +60 °C/ -13 to +140 °F

13. Pipeline along a wall: where possible, the distance between pipe centerline and wall must be more than 0.5 m (1.6 ft) for the UFM 400 K and UFM 500 K flowmeters. If less, first connect all cables to the terminals in the terminal compartment (power supply and outputs), and install an intermediate connection box before installing flowmeter in pipeline.

14. Insulated pipeline: do not insulate UFM 400 K and UFM 500 K compact flowmeters.

15. Suggestions for installation

To avoid measuring errors due to air inclusion, please observe the following:

Part A System installation and start-up

1. Installation in the pipeline

1.1 Preliminary information

1.Location and position as required, but sensor axis must be approximately horizontal if flowmeter is installed in slightly ascending or horizontal pipe runs.

2.Hard-to-reach locations

Sensor axis (2 beams)

Sensor axis (1 beam)

Where UFM 400 K and UFM 500 K compact flowmeters have not been ordered and supplied in accordance with Versions 1 to 10 (see sect. 8.6), the configuration can be changed subsequently:

∙Turn the indicating circuit board through ± 90° or 180° to obtain horizontal positioning of the display (see sect. 8.4)

∙Turn signal converter housing through ± 90° (see sect. 8.5)

3.Measuring tube must be completely filled at all times.

4.Flow direction +/-: note arrows on flowmeter and also fct. 3.1.7 (refer to sections 4.3 and 5.4).

5.Bolts and nuts: to install make sure there is sufficient room next to the pipe flanges.

6.Vibration: support the pipeline on both sides of the flowmeter.

7.Large meter sizes, DN>200 (8”): use adapter pipes to permit axial shifting of counter flanges to facilitate installation.

8.Inlet and outlet sections

(DN = meter size)

Inlet section

single beam

double beam

− Downstream of

50 × DN

15 × DN

pump

− Downstream of fully

50 × DN

10 × DN

opened control valve

− Downstream of 2

40 × DN

10 × DN

quarter bends on

different levels

− Downstream of 2

25 × DN

10 × DN

quarter bends on one

level

− Downstream of 1

20 × DN

10 × DN

quarter bend

− Downstream of

15 × DN

no additional

reducer (α/2 = 7°)

inlet section

− Outlet section

5 × DN

5 × DN

9.Vortex or corkscrew flow: increase inlet and outlet sections or install flow straighteners.

(Suggestions for installation continued):

Open feed or discharge

Install meter in low

Open

Downpipe over 5 m (16 ft) length

discharg

Install air valve downstream of

flowmeter (cavitation).

> 5 m (16 ft)

Long pipeline

Always install control and shutoff valves

Pump

Never install flowmeter on pump suction side (cavitation,

1.2 Pipe flanges

Flange spacing

Refer to dimensional drawings (section 10.4 and 10.5), in addition allow for thickness of gaskets.

Position of flanges

·Install flowmeter in line with pipe axis.

·Pipe flange faces must be parallel to each other, max. permissible deviation: Lmax - Lmin £ 0.5 mm (0.02”).

Lmax

Lmin

1.3 Grounding

Warning

Instrument should be properly grounded to avoid personnel shock hazard!

1.3.1 Standard grounding

The flowmeter must normally be grounded via the protective conductor PE incorporated in the power supply cable. Connect the protective conductor to the separate U-clamp terminal in the terminal compartment of the signal converter. See sect. 2.1.2 for the compact flowmeters, and sect. 2.2.2 for the separate systems.

Standard grounding of compact flowmeters UFM

400 K / 500 K

PE

PE Protective conductor incorporated in the power supply cable, see sect. 2.1.2.

Standard grounding of separate system flowmeters UFM 400 F / 500 F

PE

MR 02

MR 04

PE
	Protective conductor incorporated in power
	supply cable, see sect. 2.2.2
MR 02/04	Sensor cables, factory supplied, see sect.

2.2.3for connection.

1.3.2Grounding with measuring ground M

This type of grounding must be employed if at least one of the two following operating conditions occurs:

A If large potential differences occur between protective ground and electric furnaces or electrolysis plants.

BIf a protective ground conductor is not provided, e.g. for DC voltage operation.

Observe the following when grounding with separate measuring ground M:

Do not connect up the protective ground conductor PE in the terminal box if measuring ground M is connected.

If the AC supply voltage exceeds 50 Vrms, then the measuring ground simultaneously acts as the protective

ground conductor (combined protective/functional ground). Refer to appropriate national codes for specific requirements for this type of installation, which may require the addition of a ground fault detection circuit interrupter.

Grounding with measuring ground M for compact flowmeters UFM 400 K / 500 K

Do not connect up protective conductor PE incorporated in the power supply cable, see sect. 2.1.2!

M

MMeasuring ground; ground conductor, cross-section ³ 4 mm2 (AWG 10) Cu with M6 cable lugs, customer supplied. Threaded hole in housing M4 by 6 mm.

6

Grounding with measuring ground M for separate system flowmeters UFM 400 F / UFM 500 F

Do not connect up protective conductor PE incorporated in the power supply cable, see sect. 2.2.2!

V

MR 02

MR 04

M

MR 02/04 Sensor cables, factory supplied, see sect. 2.2.3 for connection.

·The bolts for the flange connections must be insulated. Use sleeves and washers that made of insulating material. Must be provided by customer.

6	7	6	4

5

V Connecting cable, cross-section ³ 4 mm2 (AWG 10) Cu, equip with M6 cable lugs, customer supplied.

MMeasuring ground; ground conductor, cross-section ³ 4 mm2 (AWG 10) Cu, equip with M6 cable lugs, customer supplied. Threaded hole in housing M4, 6 mm (0.24”) deep.

1.3.3 Grounding in hazardous areas

Special regulations are applicable, refer to sect. 6.1, and the special “Ex” installation instructions.

1.4 Pipes with cathodic protection

·Pipes with electric corrosion protection are generally insulated inside and outside so that the fluid has no conductive connection to ground. The primary head must be insulated from the pipe. Note the following when installing the flowmeter:

·The pipe flanges must be connected to each other using a copper cable (L), but must not be connected to the primary head.

	1		2				3
1	Flange of	3	Pipe flange			6	Washer
	Primary head	4	Bolt			7	Insulating
2	Gasket	5	Nut				sleeve
·	Grounding		Not included with meter, must
I	Insulated bolts
L	Copper cables		be provided by customer.

						L
I						I

I

I

For grounding, be sure to read the instructions given in sect. 1.3.1 and 1.3.2!

	2.	Electrical connection
	2.1 Compact flowmeters UFM 400 K, UFM 500 K
	2.1.1 Installation location and cable diameter
	Location		· Fit blanking plug Pg 16 and apply sealant to unused
	·	Do not expose the compact flowmeter to direct	cable entries.
		sunlight. Install a sunshade if necessary.	· Do not kink cables directly at conduit entries.
	· Do not expose to intensive vibration. If necessary,		· Provide water drip point (U-bend in cable).
		support the pipeline to the left and right of the	Conduit installation, general wiring consideration
		flowmeter.
	Cable diameter		· When electrical	codes require conduit, it	must be
			installed in such	a manner that the meter	terminal
	To conform to protection category requirements, observe
			compartment remains dry at all times.
	the following recommendations:
			· Power and output wiring should be run in		separate
	· Cable diameter: 8 to 13 mm (0.31” to 0.51”).
			conduit.
	·	Enlarge inside diameter by removing the appropriate
			· Use twisted pairs for output wiring.
		onion ring(s) from the seal of the screwed conduit
		entry only if cables have extremely tight fit.	Warning: Power wiring should utilize a grounded
			neutral conductor to avoid possible shock hazard /
			damage to component parts.

7

Ri

A

Rmax

2.1.2 Connection to power

·Note information given on the instrument nameplate (voltage, frequency)!

·Electrical connection in conformity with VDE 0100 “Regulations governing heavy-current installations with rated voltages up to 1000V” or equivalent national standard.

·Special regulations apply to installation in hazardous areas. Refer to sect. 6.1 and special “Ex” installation instructions.

·The PE protective ground conductor for supply power

Þmust be connected to the separate U-clamp terminal in the terminal box of the signal converter in case of “standard grounding” see sect. 1.3.1, point 1,

Þmust not be connected in case of “grounding with measuring ground M”, see sect. 1.3.2, point 3.

·Do not cross or loop the cables in the terminal box of the signal converter. Use separate Pg or NPT screwed conduit entries for power and output cables.

·Ensure that the screw thread of the round cover on the terminal box is well greased at all times.

Connection to power

Binary	Current	for
output	output
		internal
		use only
		(PE = Protective Earth)
		(FE = Functional Earth)

2.2 Signal converters UFC 400 F and UFC 500 F separate systems

2.2.1 Location

·Do not expose signal converter to direct sunlight. Install a sunshade if necessary.

·Do not expose to intensive vibration

·Install signal converter as closely as possible to the primary head.

·The rotating design of the housing makes it easier to connect the two cables for power and outputs to the terminals in the rear terminal box.

·Cable routing

>280 mm (> 11,02")

Power s upply

S ens or cable with

Coaxial-entry plugs

Outputs

·On normal customer orders, the GK (primary constant) of the signal converter is factoryprogrammed to match that of the primary head with which it is ordered. The GK is engraved on the primary head nameplate and also shown on the converter nameplate. These instruments should be installed together, otherwise reprogramming of the converter is required (see sect. 4.3 and 8.2, fct. 3.1.1, 3.1.5 and 3.1.6, only possible with UFC 500 F signal converter).

·Electrical connection between primary head and signal converter by way of factory-supplied sensor cables MR02 (for single-beam versions) or MR04 (for double-beam version). Refer to sect. 2.2.3 for the connection diagrams.

2.2.2 Connection to power

·Note the information given on the instrument nameplate on the signal converter (voltage, frequency)!

·Electrical connection in conformity with VDE 0100

“Regulations governing heavy-current installations with rated voltages up to 1000 V” or equivalent national standard. Refer to sect. 6.1 and special “Ex” installation instructions.

·Special regulations apply to installation in hazardous areas.

R efer to sect. 6.1 and special “Ex” installation instructions.

·The PE protective ground conductor for supply power

Þmust be connected to the separate U -clamp terminal in the terminal box of the signal converter in the case of “standard grounding”, see sect. 1.3.1, point 1,

Þmust not be connected up in the case of “grounding with measuring ground M”, see sect. 1.3.2, point 3.

·Line resistance for 24 VDC and 21, 24, 42 and 48 VAC

Max. internal resistance Rmax of voltage supply (transformer or DC voltage source and cable)

24 Volt DC / 24 Volt AC:	Rmax 24 £ 1.6 ohms
42 Volt AC:	Rmax 42 £ 2.8 ohms

Maximum length Lmax of power cable. Lmax = 28 x A (Rmax - Ri)

C ross-section of pow er cable in m m 2 copper w ire. Internal resistance of voltage supply

Rmax 24 or Rmax 42, see above.

Internal resistance of transformer or DC voltage source.

Example:

42 VAC/A = 1.5 mm2 / Ri = 0.2 ohm / Rmax 42 = 2.8W

Lmax = [28 x 1.5 x (2.8 - 0.2)] = 109.2 m 109.2 m x 3.3 ft/m » 360 ft

C on n ection of several sign al con verters to 1 tran sform er (n = n u m ber of con verters)

Separate pow er cable: R i increases by factor “n” (R i x n) Common power cable: Lmax decreases by factor “n” (Lmax/n).

8

2.2.3 Connections diagrams

1-beam system, sensor cable MR 02

2-beam system, sensor cable MR 04

UFM 400 F, all meter sizes

UFM 500 F, meter size ³ DN 50 / ³ 2”.

UFM 500 F, meter size £ DN 40 / £ 1½”

UFC 400 F

UFC 500 F

UFC 500 F

1

2

3

4

1

2

3

4

N

L

N

L

MR 02

N L PE

AC

MR 04

N L PE

AC

L- L+

DC, 24 Volts

L- L+

DC, 24 Volts

1	2	3	4	1		2	3	4
UFS 400/500					UFS 400/500

2.3 Outputs

2.3.1 Abbreviations

Abbreviation	Stands for	Setting via fct. no. ...	Description
			see sect. ...
EC	Electronic counter	-	5.8	+ 2.3.5
EMC	Electro-mechanical counter	-	5.8	+ 2.3.5
F	Frequency (pulse) output	3.4.1 & seq.	5.8
F100 %	Pulses for Q = 100% flowrate or pulse value	3.4.2 + 3.4.3	5.8
Fmax	Pulses at Q higher than 100% flow	-	5.8
	(max. 125% of F100%)
I	Current output	3.3.1 & seq.	5.7
I0%	Current at Q = 0% flow	3.3.2 + 3.3.3	5.7
I100%	Current at Q = 100% flow	3.3.2 + 3.3.4	5.7
Imax	Current at Q = over 100% flow	3.3.5	5.7
Q0%	0% flowrate	-	5.3	(5.7 + 5.8)
Q100%	Full-scale range, 100% flowrate	F: 3.1.1 / R: 3.1.2 + 3.1.3	5.3	(5.7 + 5.8)
Qmax	Max. flow, Q greater than 100%	-	5.3	(5.7 + 5.8)
	corresponding to Imax + Fmax	I: 3.3.7 / F: 3.4.6
SMU	Low-flow cutoff for I + F		5.10
SMU-I	Low-flow cutoff I / on value	3.3.8	5.10
	off value	3.3.9	5.10
SMU-F	Low-flow cutoff F /on value	3.4.7	5.10
	off value	3.4.8	5.10
S.VELO	Sound velocity of ultrasonic waves in the	3.1.8 + 3.1.9 / 3.2.4	5.17 / 5.5
	product.	I: 3.3.1 & seq.	5.7
		F: 3.4.1 & seq.	5.8
F/R	Forward/reverse flow	-	5.11

9

2.3.2 Current output I

∙The current output I can be used passively or actively. If used passively it is galvanically insulated from all other input and output circuits.

∙All functions and operating data can be set, see sect. 4 + 5.7 (not applicable to UFC 400 ... signal converter).

∙Factory-set data and functions are listed in the enclosed report on settings. This can also be used to record any changes made to the operating parameters.

∙Maximum load at terminals I+, I, I

Maximum load in ohms ≤ 680.

∙Time constant I, adjustable between 0.04 and 3600 seconds (fct. 3.3.6), refer to sect. 5.7.

∙Low flow cutoff SMU-I, can be set independently of SMU-F (frequency output). Cut-off “on” value between 1 and 19% of Q100% (fct. 3.3.7 + 3.3.8), cut-off “off” value from 2 to 20% of Q 100% (fct. 3.3.7 + 3.3.9), refer to sect. 5.10.

∙Connection diagrams, see below.

2.3.3 Frequency (pulse) output F

∙The pulse output is galvanically insulated from the current output if the current output is used passively. Furthermore, the pulse output is galvanically insulated from all other circuits except for the status output with which it shares a common (ground).

∙All functions and operating data can be set, see sect. 4 + 5.8 (not applicable to UFC 400... signal converter).

∙Factory-set data and functions are listed in the enclosed report on settings. This can also be used to record any changes made to the operating parameters.

∙Active frequency output, for electro-mechanical totalizers EMC (terminals B1/B ) or for electronic totalizers EC (terminals B1/B ), 10 to 3,600,000 pulses/hr (0.0028 to 1000 Hz), voltage between 19 to 32 VDC. Note that the total current for the active frequency/pulse and status outputs together (drawn from I+) may not exceed 50 mA. (see connection diagram 3 below).

∙Passive frequency output, open collector output for connection of active electronic counters EC or switchgear (terminals B1/B ), input voltage ≤ 32 VDC / ≤ 24 VAC, load current max. 150 mA.

∙Time constant F, adjustable to 0.04 seconds or same as current output I (fct. 3.4.5)

∙Low-flow cutoff SMU-F, can be set independently of SMU-I (current output). Cut-off “on” value between 1 and 99% of Q100% (fct. 3.4.6 + 3.4.7), cut-off “off” value from 2 to 20% of Q 100% (fct. 3.4.6 + 3.4.8), refer to sect. 5.10.

∙Connection diagrams, see below.

∙The following table shows the possible pulse widths for F ≤ 10 Hz:

F100%		Pulse-width
F100%	≤ 10 Hz	30 or 50 ms
F100%	≤ 5 Hz	100 ms
F100%	≤ 2.5 Hz	200 ms
F100%	≤ 1.0 Hz	500 ms

If F100% > 10 Hz and ≤ 1000 Hz, the pulse-width duty cycle is 50%.

2.3.4 Status output S

∙The status output is galvanically insulated from the current output if the status output is used passively. Furthermore the status output is galvanically insulated from all other circuits except for the status output with which it shares a common (ground).

∙All functions and operating data can be set, see sect. 5.9 (not applicable to UFC 400... signal converter).

∙Factory-set data and functions are listed in the enclosed report on settings. This can also be used to record any changes made to the operating parameters.

∙Active status output, for electromechanical indicators or for electronic indicators, voltage between 19 to 32 VDC. Note that the total current for the active frequency/pulse and status outputs together (drawn from I+) may not exceed 50 mA. (see connection diagram 3 below).

∙Passive status output, open collector output for connection of electronic indicators, input voltage ≤ 32 VDC / ≤ 24 VAC, load current max. 150 mA.

∙Connection diagrams, see below.

2.3.5 Connection diagrams for outputs

B1 pulse output (P)

B2 status outputs (S)

Electrical connection in conformity with VDE 0100 “Regulations governing heavy current installations with mains voltages up to 1000 V” or an equivalent national standard.

10

In case the meter is to be connected to a functional extra-low voltage source of ≤ 18 VDC, protective separation in conformity with VDE 0100, part 410 or an equivalent national standard must be ensured.

The connection diagrams are shown by the figures below.

Current output (I)

Fig. 1

Passive

Active

Ri £ 680W mA						Ri £ 680W mA

Uext £ 18 VDC

Pulse output (P)	Passive		Fig. 2	Pulse output (P)		Active			Fig. 3
Status output (S)
	B1 B	B2		Status output (S)	B1 B	B2	I+	I	I-
	Uext								B1
									output A
I	Ÿ	I							B
									output B
	000								B2
Σ				R1		R2		I £ 150 mA
	P	S				Output voltage U: 19 V* £ U £ 32 V
Electronic		e.g.

or electro-	signal	Remark: In case of one active output (A or B), the
mechanical	indicator
totalizer		resistance R1 or R2 ³ 650 W.
Uext ≤ 32 VDC/24 VAC		In case of two active outputs the equivalent
I ≤ 150 mA		resistance of R1 and R2 ³ 650 W.

* 19 V at full load on all active outputs

3. (Initial) Start-up

∙Check that the system has been correctly installed as described in sect. 1 and 2.

∙With separate systems, check before initial start-up that the following details on the primary head nameplate agree with the data specified in the report of settings for the signal converter. If not, new setting will be necessary:

Order No., see instrument nameplates Meter size (DN), fct. 3.1.5, sect. 5.3 Primary constant GK, fct. 3.1.6, sect. 5.16 Flow direction, fct. 3.1.7, sect. 5.4

∙Before every start-up it is advisable to carry out a zero check if the flow can be zeroed, as described in sect. 7.2.

∙When powered, the signal converter operates in the measuring mode. TEST, NO ERROR and IDENT NO.

_ _ _ _ _ _ _ of the signal converter appear in succession in the display. This is followed by display of the actual flowrate and/or the internal count on a continuous or alternating basis (depends on setting, see report on settings)

If the compass field flashes (see sect. 4.4) on flowmeters UFM 500... it may prove necessary to change the system grounding, see sect. 1.3.2.

11

Display 3rd (bottom) line: Arrows ( ) to identify actual display.

Flowrate actual flowrate Sonic.velo Sound velocity

+ Totalizer (Forward flow) - Totalizer (Reverse flow) Σ Sum totalizer (+ and -)

Part B Signal converter UFC 500 ...

4. Operation of the signal converter

This section 4 is repeated in the form of pull-out condensed operating instructions (pages 17-20).

4.1 Operating and check elements

The operating elements are accessible after removing the cover of the electronics section using the special wrench. Caution: Do not damage the screw thread, never allow dirt to accumulate, and make sure it is well greased at all times.

						5		Display 1st (top) and 2nd (middle) lines.
	KROHNE						U FC500

1 49627

6 2

3 Liter

flow rate

s onic velo.

total

4

Keys for setting the signal converter, refer to “Setting diagram” (on the right) and sect. 4.2.2

Magnetic sensors to set the converter by means of a hand-held bar magnet (optional) without having to open the housing, refer to sect. 6.4. Function of sensors same as keys .

Compass field, see sect. 4.4.

4.2 KROHNE operator control concept

4.2.1 Description

The operator control concept for the UFC 500... signal converter consists of 3 levels (horizontal), see below.

Setting level:	This level is subdivided into 3 main menus.
	Fct. 1.0 OPERATION: This menu contains only the most important parameters and functions of
	menu 3 to allow rapid changes to be made during the measuring mode.
	Fct. 2.0 TEST: Test menu for checking the signal converter.
	Fct. 3.0 INSTALL.: All flow measurementand flowmeter-specific parameters and functions can be
	set in this menu.
Parameter check	Fct. 4.0 PARAM.ERROR: This level is not selectable. After exiting from the “setting level”, the
level:	signal converter checks new data for plausibility (inconsistency). If an error is established, the signal
	converter reverts to menu 4. In this menu, all functions can be scanned and those, that are
	inconsistent, changed.
Reset/acknowledge This menu has two tasks and is selected via Entry Code 2 ( −→), see sect. 4.2.5
level:	1) Separate resetting of totalizers, provided that resetting is enabled by setting “YES” under fct.
	3.6.10 ENABL.RESET.

2) Error scanning and acknowledgment (Quit)

Errors that have occurred since the last acknowledgment are indicated in a list. After acknowledgment and elimination of the cause(s), these errors are deleted from the list.

12

4.2.2 Overview of functions

measuring mode

STATUS.LIST.

ERROR

QUIT.

YES

210.50

QUIT

−

→

Error lists

QUIT.

NO

m³/hr

RESETTING TOTALIZER

TOTAL.

-

RESET.

YES

TOTAL.

+

RESET.

NO

→

	LEVEL	RESET/QUIT
		-

CodE 1 When this is displayed type in 9 key-stroke entry-code, see fct. 3.6.2 and 3.6.3: → → →− − −

4.0 PARAM.ERROR

3.0 INSTALL.

2.0 TEST

1.0 OPERATION

4.12.0 V.S. min >
			4.12.1-
max.			4.12.2
_ _ _ _ _ _ _ _
			- - - -
_ _ _ _ _ _ _ _
			- - - -
_ _ _ _ _ _ _ _
			- - - -
_ _ _ _ _ _ _ _
			- - - -
_ _ _ _ _ _ _ _
			- - - -
_ _ _ _ _ _ _ _
			- - - -
_ _ _ _ _ _ _ _
			- - - -
4.1.0	FLOW VELOC.
			4.1.1-4.1.2
3.6.0	USER DATA
			3.6.1-3.6.13
3.5.0	STAT.OUTP.S
			3.5.1-3.5.3
3.4.0	FREQ.OUTP.F
			3.4.1-3.4.8
3.3.0	CUR.OUTP. I
			3.3.1-3.3.9
3.2.0	DISPLAY
			3.2.1-3.2.6
3.1.0	BASIS. PARAM.
			3.1.1-3.1.9
2.5 PROCESSOR
2.4 TEST STATUS
2.3 TEST F
2.2 TEST I
2.1 TEST DISP.
1.4.0	FREQ. OUTP. F
			1.4.1-1.4.4
1.3.0	CUR. OUTP. I
			1.3.1-1.3.4
1.2.0	DISPLAY
			1.2.1-1.2.5
1.1.0	BASIS. PARAM.
			1.1.1-1.1.2

Possible direction of keys in menu levels and sub-levels

The flashing part of the display (cursor) can be changed, here in “bold” type.

CHECK-PARAMETER

LEVEL SETTING

Param. -Check

Main menu

Submenu

Function

Data

and return to

→

→

→

choose with

choose with

choose with

set with following

measuring

following key

following key

following key

keys

mode

−

−

−

→ −

13

4.2.3 Function of keys

The gray areas in the following text represent the flashing part of the display, the cursor.

To start
	Measuring mode					Operating mode
	13.571						Fct. 1.0
				→
							OPERATION
	3	/ h
	m

PLEASE NOTE: When ENTRY CODE ‘YES’ is set in fct. 3.6.2, then, after pressing the → key, the display will show: “CodE 1 - - - - - - -”. Now type in the 9 key-stroke the entry-code: Factory setting → → → − − − (Each key-stroke is represented by a “ ” in the display).

Function of the keys in the 3 levels

Cursor	Is the flashing part of the display. This can be a digit, a text, a unit or a sign.
→	The cursor key shifts the cursor to a new (different) position in the display. For the menu columns (see
	diagram in sect. 4.2.2) this means: transfer to the next “right” column, i.e. from left or right, up to the data
	column. Only in the data column parameters can be changed and functions can be initiated.
−	The select key changes the contents (digit, text) of the flashing cursor.
	- Digit	Increase value by “1”.
		(With fct. _ _ _, display next main or submenu or next function).
	- Text/unit: Display (select) next text/unit from a list.
	- Sign:	Change from “+” to “-“ or, with exponents, from “E” to “E-”, and vice versa.
	The accept key (return key) is used for:
	- acceptance of new parameters,
	- acknowledgment of displayed error messages in the reset/ackn. Menu, and
	- execution of displayed functions.
	For the menu columns (see diagram in sect. 4.2.2) this means: transfer to the next “left” column, i.e. from
	right to left, up to the main menu column. Only from the main menu column it is possible to exit the 3
	levels and return to the measuring mode.
Important	∙ If numerical values are set, which are outside the permissible input range, the display will flash after the
	“Accept” key has been pressed.
	1st line: permissible minimum or maximum value displayed.
	2nd line: TOO LOW or TOO HIGH.
	The incorrect numerical value is displayed again after pressing the key; set correct numerical value.
	∙ Time-out function: if the signal converter is in the setting level and if no key-strokes are set for approx. 15 minutes, the
	signal converter will automatically revert to the measuring mode without accepting any previously changed data.

To terminate

Keep pressing until menu fct. 1.0 OPERATION, fct. 2.0 TEST, or fct. 3.0 INSTALL. is

Fct . 3 . 0

INSTALL.

					S TO RE	YES

Storing the new parameters

Acknowledge with , display shows: “PARAM.CHECK”.

When no errors occur, the measuring mode will continue with the new parameters.

In case of an error, the display will show: “Fct. 4.0 PARAM.ERROR”. In this menu all functions that are inconsistent can be scanned. For this turn to sect. 4.2.2 and 4.3.

Do not store new parameters

Press the− key, display shows “STORE NO”. After pressing the key the measuring mode will continue with the “old” parameters.

14

Changing the numbers.

97	.	35					97	.	45
				−
m3 /		h r					m3 /		h r
Moving the cursor (blinking part) to the
97	. 35						97 .		35
				→
m3 / h r							m3 / h r

Changing the texts (units).

When the units are changed, the totalizer value is automatically converted.

97350
						−
	Li t er / h r
Changing from text (unit) to totalizer setting.
13 . 571
						→
		m3 / h r
Changing from totalizer setting back to text.
1 3 . 5 71
						→
		m3 / h r
Return to display of functions.
10 .			3
		S ec

7 . 1437 U S . G a l / S ec

13 . 571 m3 / h r

13 . 571

m3 / h r

Fct . 1 . 3 . 1

TIM ECONS T . I

4.2.4 Example for setting the signal converter

The following example shows how to change the pulse rate of the frequency output (function: fct. 3.4.3 PULSRATE, see sect. 4.3). The cursor (flashing part of display) is shown here in “ bold” type.

- “old” setting:	1 pulse per second	(1.000	E 0	PuLSe/Sec)
- change to:	1000 pulses per hour	(1.000	E 3	PuLSe/hr)

	Keys		Display	Explanation
		1st line	2nd line
		- - - - -	- - - - - - -/ - -	Measuring mode
	→	Fct. 1.0	OPERATION	When ENTRY CODE 1
				“YES” is set in fct. 3.6.2
				the 9 key-stroke “CodE 1”
				must be typed in.
				Factory setting
				→ → → − − −
				Main menu operation
	2 x − Fct. 3.0		INSTALL.	Main menu setting
	→	Fct. 3.1	BASIS	Submenu Frequency output
			PARAM
	3 x − Fct. 3.4		FREQ.OUTP.
			F

→Fct. 3.4.1 FUNCTION F

2 x −	Fct. 3.4.3	PULSRATE	Change pulse rate
→	1.0000 E	PuLSe/Sec

Keys		Display		Explanation
	1st line		2nd line
−	6.0000E 1		PuLSe/min	Change pulse rate
−	3.6000E 3		PuLSe/hr	(Continuation)
→	3.6000E 3		PuLSe/hr
8 x −	1.6000E 3		PuLSe/hr
→	1.6000E 3		PuLSe/hr
4 x −	1.0000E 3		PuLSe/hr
	Fct. 3.4.3		PULSRATE	Return to measuring
	Fct. 3.4		FREQ.OUTP.F	mode
	Fct. 3.0		INSTALL.
			STORE YES
			PARAM.CHEC	If fct. 4.0 PARAM.ERR.
			K	should appear:
				plausibility error, see
				sect. 4.3
	- - - - - - -		- - - - - - - / - - -	Measuring mode

15

4.2.5 RESET / QUIT Menu, reset totalizers and delete error messages

Resetting totalizers

Keys	Display		Description
	- - - - - - -	- - - - - - / - - -	Measuring mode.
	CodE 2	- -	Type in entry-code 2 for RESET/QUIT-menu: − →.
− →		TOTAL.RESET	Totalizer menu only appears when ENABL.RESET “YES” is set in
			fct. 3.6.10, if not display will show “ERROR LIST”, see next section.
→		TOTAL. +
(− )		(TOTAL. -)	If necessary, choose “-Totalizer” with − key.
→		RESET NO	Do not reset totalizer, press 3 times to return to measuring mode.
−		RESET YES	Reset totalizer.
		TOTAL. + (-)	“+” (or “-“) totalizer has been reset.
			If necessary choose the other totalizer with − key and reset as well.
		TOTAL.RESET
	- - - - - - -	- - - - - - / - - -	Return to measuring mode.
Displaying and deleting error messages
Keys	Display		Description
	- - - - - - -	- - - - - - / - - -	Measuring mode.
	CodE 2	- -	Type in entry-code 2 for RESET/QUIT-menu: − →.
− →		TOTAL.RESET	Totalizer menu only appears when ENABL.RESET “YES” is set in
			fct. 3.6.10, if not display will show “ERROR.LIST”, see next section.
−		ERROR.LIST	Menu for status messages.
→		- - - - - - - - - - -	1. Error message is displayed.
−		- - - - - - - - - - -	2. Error message is displayed.
−, −, ...		- - - - - - - - - - -	Further error messages are displayed, if present at the end of the list.
		ERROR.LIST	ERRORLIST is displayed.
→		QUIT.NO	Do not delete error messages,
			press key three times = return to measuring mode.
−		QUIT.YES	Delete error messages.
		ERROR QUIT	Error messages have been deleted.
		ERROR.LIST
		- - - - - - / - - -	Return to measuring mode.

16