KROHNE BM100A User Manual

4.5 (2)
KROHNE BM100A User Manual

© KROHNE 01/2004

7.02261.22.00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GR

Handbook

BM 100 A

Reflex-Radar

Variable area flowmeters

Vortex flowmeters

Flow controllers

Electromagnetic flowmeters

Ultrasonic flowmeters

Mass flowmeters

Level measuring instruments

Communications engineering

Engineering systems & solutions

Switches, counters, displays and recorders

Heat metering

Pressure and temperature

 

Table of contents

 

General advice on safety.................................................................................................................

4

Range of application........................................................................................................................

4

Items supplied..................................................................................................................................

4

Documentation supplied.................................................................................................................

4

Principal gauge components..........................................................................................................

5

Product liability and warranty.........................................................................................................

6

1

Mechanical installation .....................................................................................................

7

1.1

Handling and storage...........................................................................................................

7

1.1.1

Avoiding blows.....................................................................................................................

7

1.1.2

Avoiding bending .................................................................................................................

7

1.1.3

Avoiding cable kinks or fraying ............................................................................................

7

1.2

Installation restrictions .........................................................................................................

8

1.3

Mounting on a tank ..............................................................................................................

8

1.3.1

Installation instructions: General notes ................................................................................

8

1.3.2

Installation instructions: Nozzle............................................................................................

8

1.3.3

Installation instructions: Gauge - all applications ...............................................................

12

1.3.4

Specific installation instructions: gauge - liquid applications..............................................

14

1.3.5

Specific installation instructions: gauge - solid applications...............................................

15

2

Electrical Connections ....................................................................................................

17

2.1

Insulation rating .................................................................................................................

17

2.2

Electrical installation instructions .......................................................................................

18

2.2.1

Wiring general notes..........................................................................................................

18

2.2.2

Wiring connections ............................................................................................................

19

3

User Interface...................................................................................................................

23

3.1

Power On and self-test mode ............................................................................................

23

3.2

Local user interface ...........................................................................................................

23

3.3

Status Markers...................................................................................................................

24

3.4

Parameter Settings ............................................................................................................

24

3.4.1

General Information ...........................................................................................................

24

3.4.2

Configuration Procedure....................................................................................................

24

3.4.3

Quick Configuration: configuration examples ....................................................................

26

3.4.4

Network Configuration – digital outputs and gauge identification : RS 485, multi-drop......

32

3.4.5

Summary of User Functions ..............................................................................................

33

3.4.6

BM100A TDR level meter characteristics ..........................................................................

39

4

Service and maintenance................................................................................................

45

4.1

Test Functions in the user menu........................................................................................

45

4.2

Troubleshooting .................................................................................................................

45

4.2.1

Parameter errors................................................................................................................

45

4.2.2

Basic Servicing – Replacing fuses and the electronics chassis.........................................

46

4.3

Fault clearing .....................................................................................................................

49

5

Ordering spare parts .......................................................................................................

50

2

Handbook BM 100 A

 

6

Technical data..................................................................................................................

52

6.1

Technical Data...................................................................................................................

52

6.2

BM 100 A Equipment Architecture.....................................................................................

54

6.2.1

BM 100 A mechanical options......................................................................................

54

6.2.2

Definition of terms..............................................................................................................

56

6.2.3

Probe measurement limits.................................................................................................

57

6.3

Gauge dimensions.............................................................................................................

58

7

Measuring Principle ........................................................................................................

59

7.1

Direct mode .......................................................................................................................

60

8

Certificates and Approvals .............................................................................................

61

9

PC STAR software installation and operation instructions .........................................

62

9.1

Software Installation ..........................................................................................................

62

9.2

PC-STAR Software history ................................................................................................

62

9.3

Setting up the gauge before connecting with the software ................................................

63

9.4

PCSTAR Functions ...........................................................................................................

63

9.4.1

F1

Help:.............................................................................................................................

63

9.4.2

F2

Connection: ..................................................................................................................

64

9.4.3

F3

Exit: ..............................................................................................................................

73

9.4.4

F4

Serial (parameters):......................................................................................................

73

9.4.5

F5

Record Reading ...........................................................................................................

74

9.4.6

F7

Configuration................................................................................................................

76

9.4.7

F9

Colors...........................................................................................................................

77

9.4.8

Other important PCSTAR functions...................................................................................

77

Appendix A: Returning a device for testing or repair to KROHNE............................................

78

Appendix B: BM 100 A Level Gauge Configuration Record ......................................................

79

Appendix C: BM 100 A – CE Declaration of Conformity.............................................................

80

Handbook BM 100 A

3

General advice on safety

The device will normally weigh between approx. 11 kg / 25 lb and 35kg / 77 lb. Carry the device using two people, lifting it by the flange holes and supporting the probe. Lifting gear may also be used but no attempt should be made to lift the device by the probe.

Range of application

The BM 100 A TDR Level gauge measures the level and volume of liquids and liquid gases. It can also measure the level and volume of pastes, powders, slurries and granular products.

The BM 100 A also permits continuous and simultaneous measurement of liquid level and interface of two liquids.

For the storage of volatile products, such as water and carbon disulphide tanks, the BM 100 A can also be equipped with a probe (type G) to measure the interface with a top mounted probe: this avoids the resultant safety issues of installing a gauge under the tank.

Items supplied

signal converter connected to a cable, coaxial or rod signal guidance probe, as per order. Optional: remote extension with wall support, sunshade (with fastening material in each case)

bar magnet for operator control / parameter assignment (only for version with local display)

wrench for the covers

Documentation supplied

The following documentation will be included with the instrument:

installation and operating instructions (this manual), and handbook.

approval documents, unless reproduced in the installation and operating instructions.

4

Handbook BM 100 A

Principal gauge components

Non-Ex version

Ex Version

1Cable entry (output)

2Cable entry (power supply)

3Local user interface (display screen, buttons and magnetically-actuated hall sensors)

4Nameplate (see diagram on the following page)

5Flange

6Single cable probe

7Counterweight

8Twin cable probe

9Spacer

10Short-circuit

11Equipotential bonding system connection (Ex)

12Isolating chamber – separates electronics housing from hazardous products

13Pressure release plug (1 bar or 14.5 psi limit) and vent

14Coaxial probe

Handbook BM 100 A

5

Standard nameplate

Product liability and warranty

The BM 100 A TDR level gauge is designed solely for measuring the distance, level, interface and volume of liquids, pastes, slurries, solids and particulate materials.

The BM 100 A TDR level gauge does not form part of an overfill protection system as defined in WHG nor is it concerned by the Pressure Equipment Directive (PED) 97/23/EC.

Special codes and regulations apply to its use in hazardous areas.

Responsibility as to suitability and intended use of these level gauges rests solely with the user. Improper installation and operation of our level gauges may lead to loss of warranty.

In addition, the "General conditions of sale", found on the back of the invoice and forming the basis of the purchasing contract, are applicable.

If you need to return the level gauge to the manufacturer or supplier, please refer to the information given in appendix A.

6

Handbook BM 100 A

1 Mechanical installation

1.1Handling and storage

Caution :

The probe is a critical gauge component.

Do not damage– Handle with care!!!

1.1.1 Avoiding blows

Avoid hard blows, impacts and jolts when handling the BM100A.

Caution : fragile electronics

1.1.2 Avoiding bending

Rod/ Coaxial probes: support the probe to avoid bending.

Support probe here

1.1.3 Avoiding cable kinks or fraying

Do not coil the cable less than 400 mm / 16’’ in diameter. Cable kinks or fraying will cause measurement errors.

Handbook BM 100 A

7

1.2Installation restrictions

Hazardous-duty systems (Ex, FM…)

refer to the supplementary instructions for gauges approved for use in hazardous locations before installation.

check that the flange, gasket and probe materials are compatible with the product. Read the information given on the converter nameplate, the flange markings and specifications in the approval certificates.

1.3Mounting on a tank

1.3.1 Installation instructions: General notes

The fitter should give some thought to tank fittings and tank shape:

nozzle position in relation to the tank walls and other objects inside the tanks

(Warning : this free area will depend on the probe type selected: refer to later on in this section)

type of tank roof , i.e. floating, concrete, integral, etc; and base, i.e. conical,etc.

1.3.2 Installation instructions: Nozzle

Nozzle height

Recommendation (especially for single probes and powder applications):

Do not fit a nozzle longer than its diameter.

h Ød

, where h = nozzle height and d = nozzle diameter.

Contact KROHNE if this relationship cannot be respected.

8

Handbook BM 100 A

Nozzles extending into tank

Caution:

Do not use nozzles that extend into the tank. This will block the emitted pulse.

Process connection

For the gauge to make accurate measurements:

the tank process connection must be level.

ensure a good fit with the gauge process connection

the tank roof should not deform under the weight of the gauge

Objects (discontinuities) inside the tank that influence the probe EM (electromagnetic) field

Install the process connection far from protruding objects such as:

heating tubes

sudden changes in tank cross-section

tank wall reinforcements and beams,

weld lines and dip-stick pipes, etc...

Refer to the figure at the top of the following page.

TDR gauges generate electromagnetic fields when a measurement pulse is emitted. This field is affected by any nearby discontinuities and these will weaken and potentially block the emitted pulse. A minimum distance is recommended depending on the probe type to be installed. See the table on the next page for recommended free space dimensions.

Alternatively, the fitter may use a reference chamber or stilling well. However, the chamber walls must be smooth (i.e. no visible weld lines), straight and vertical to maintain the pulse strength and gauge accuracy.

For clean applications only :

Coaxial (type D) probes may be used close to or touching objects or walls as the EM field generated by the probe is contained within the probe’s outer sheath (refer also to the EM field sizes given in the figures on the next page).

Handbook BM 100 A

9

1 Agitator

2 Support beam perpendicular to the pulse direction

3 Abrupt changes in tank cross section

4 Heating tubes

5 Alternative solution: reference chamber - electromagnetic field is contained within chamber.

6 Gauge electromagnetic field :

Any intruding metallic object will be detected in this zone if perpendicular to the emitted pulse direction.

= Do not fit the process connection near to these objects.

Probe Type

Recommended minimum distance of probe from

 

objects inside the tank in millimetres (inches)

Single (types F, H and K)

300

(12)

Twin (types A, B, G and L)

100

(4)

Coaxial (type D)

0 (0)

Electromagnetic field shape around probe, by type (not to scale)

Single (types F, H and K)

Twin (types A, B, G and L)

Coaxial (type D)

No beam angle for any probe type.

10

Handbook BM 100 A

Process connection and entry pipe

Caution:

Do not put the nozzle close to the entry pipe. Pouring the product directly onto the probe will give false readings. Install deflector plate if impossible to distance gauge from entry pipe.

Stilling wells

Tanks with floating roofs for petro-chemical applications: Use a stilling well.

1 Stilling well

2 Tank

3 Floating roof

4 Product (petroleum applications)

5 Well fixed to tank base (no roof deformation)

6 Sediment

Handbook BM 100 A

11

1.3.3 Installation instructions: Gauge - all applications

BM100 A gauges are designed to be mounted on a suitable process connection on a tank or sump. Install the gauge using two people to avoid damaging the probe. Support the housing and the probe.

Installation of single and twin cable probe level meters

1 Caution :

Do not over-bend probe!

2 Inserting the probe:

hold more than one metre above the opening to avoid cable bending.

Outdoor sites

Fit a sunshade on the gauge for open-air installations: this is supplied on demand. The ambient temperature limits of the gauge are given below.

12

Handbook BM 100 A

Cable probes: entanglement and straightness

The cable must be straight once inserted into the tank. The cable counterweight should not touch the bottom of the tank. The cable must be far from other objects (e.g. mixers) to avoid entanglement.

Rigid length of single and twin cable probes

Cable diameter

Rigid length

Single cable

 

Ø4mm or 0.15”

145mm or 5¾”

Ø8mm or 0.3”

200mm or 8”

Twin cable

 

Ø4mm or 0.15”

145mm or 5¾”

Ø6mm or 0.24”

145mm or 5¾”

Handbook BM 100 A

13

1.3.4 Specific installation instructions: gauge - liquid applications

Probe bending in agitated products: recommended solutions

Probe (Type)

Supports and fastenings

Stilling well installation*

Twin rod (A)

Weld a 45mm / 1.8” internal diameter tube on

Possible. On-site calibration may

 

the bottom of the vessel then insert the

be required to maintain accuracy.

 

probe.

Repeatability is unaffected.

Twin cable (L)

Fit an anchor with an M10 x 1 (Ø4mm/0.16”

Possible. On-site calibration may

 

cable) thread (i.e. spring ring or hook) to the

be required to maintain accuracy.

 

counterweight*** CAUTION: 6 Nm / 4.4 lbf.ft

Repeatability is unaffected.

 

maximum torque. This cable may also be

Centring the probe is

 

ordered with a turnbuckle.

recommended. Contact KROHNE

 

 

for more information.

Single rod (F)

Weld a 12mm / 0.5” internal diameter tube on

Possible. 50 mm / 2” minimum

 

the bottom of the vessel, insert the rod****.

diameter chamber. Contact

 

 

KROHNE for assistance.

Single cable (H)

Fit an anchor with M10x1 (Ø4mm cable)

Possible. 50 mm / 2” diameter

 

thread underneath the counterweight : spring

minimum. Contact KROHNE for

 

ring or hook. CAUTION: 4 Nm / 2.9 lbf.ft

assistance**.

 

maximum torque. This cable may also be

 

 

ordered with either a chuck or turnbuckle.

 

Coaxial (D)

Weld a 30-32mm / 1.2” internal diameter tube

Unnecessary: probe unaffected

 

on the bottom of the vessel, insert the tube. A

by nearby objects.

 

probe may be fixed with braces.

 

*Reference (bypass) chamber or stilling well.

**Spacers supplied by KROHNE.

***Threaded hole provided in base of counterweight.

****Contact KROHNE. A factory menu function may need to be changed.

1 Turnbuckle

2 Chuck for type H Ø4mm single cable probe

3 Counterweight with threaded base

4 Avoid play between tube and probe

5 Hole in welded tube for drainage

Anchoring twin rod and coaxial probes

14

Handbook BM 100 A

1.3.5 Specific installation instructions: gauge - solid applications False readings:

1 Do not let probe touch the side of the nozzle

Conical silo nozzles, False readings and traction on the cable probes

Caution

2 High traction forces :

We recommend that the probe should not be anchored to avoid excessive traction loads on the cable.

3 Bending and traction:

Position the connection on the roof at ½ radius of the tank and with minimum nozzle height. This will avoid damage due to bending and traction during emptying.

Traction forces during emptying cycles for powder applications

Traction load is dependent upon the height and shape of the tank, product particle size & density, and the rate at which the tank is emptied. The table below gives the load at which cable probes will break.

Cable maximum design loads, traction

 

Probe

 

Maximum Load

 

 

 

Type K : Single cable Ø8 mm / Ø 0.3”

 

3.5

T / 7700 lb

 

 

 

Type B : Twin cable Ø6 mm / Ø 0.2”

 

3.6

T / 7900 lb (1.8 T / 3950 lb per cable)

 

 

 

 

 

 

 

 

 

 

 

Handbook BM 100 A

15

 

Traction on cable according to product (approximate value in metric tons)

 

 

Probe Length / m (ft)

 

 

Material

Probe used

10 (32.8)

20 (65.6)

30 (98.4)

Cement

Single cable Ø8 / Ø0.3’’

1.0

T / 2200 lb

2.0 T / 4410 lb

3.0

T / 6620 lb

Flyash

Single cable Ø8 / Ø0.3’’

0.5

T / 1100 lb

1.0 T / 2200 lb

1.5

T / 3300 lb

Wheat

Single cable Ø8 / Ø0.3’’

0.3

T / 660 lb

0.6 T / 1320 lb

1.2

T / 2650 lb

PE granules

Twin cable Ø6 / Ø0.2’’

0.2

T / 440lb

0.6 T / 1320 lb

1.0

T / 2200lb

Electro static discharge (E.S.D.)

BM100 Standard and Ex gauge electronics are normally shielded up to 16KV against E.S.D.*. *For non-Ex powder applications, BM100A probes are protected up to 32 kV.

Note:

E.S.D. cannot be solved by BM100A E.S.D. protection. It is the customer’s responsibility to avoid E.S.D. by grounding the tank, product and probe installation.

1

Danger of injury

The probe may become electro statically-charged during operation; earth the probe by pushing it against tank wall with a suitably isolated tool just before touching it to avoid receiving a shock.

2 Earth the entry pipe and product.

Product deposits on the nozzle and probe

Product build-up can occur under the nozzle: this may weaken the pulse. Avoid cavities that permit the build-up of deposits.

Tank roof deformation

Tank roofs should support loads of at least 3.5 tonnes / 7700lb for gauge installations using type K single cable probes and 3.6 tonnes / 7900 lb for gauge installations using type B twin cable probes without deformation.

16

Handbook BM 100 A

2 Electrical Connections

2.1Insulation rating

The gauge transmitter electrical insulation conforms to IEC 1010-1. Please note the information below concerning each rating category.

Category

Rating

Comments

 

 

 

Power supply

overvoltage category

The gauge does not have an integrated switch or circuit-

 

III

breakers. These elements must be installed in

 

 

conformance to local regulations and EU Low Voltage

 

 

Guidelines and to properly isolate the equipment when

 

 

necessary. Note that this is not obligatory for instruments

 

 

with 24 V power supply boards.

 

 

4 to 6.3 A time lag fuses are recommended for external

 

 

installation.

 

 

Fuses must be installed on every electrical conductor for

 

 

the system to conform to current regulations.

 

 

Note that the active phase conductor, L, is protected by an

 

 

internal fuse: the neutral conductor, N, is not.

Output circuit

overvoltage category II

Fuses are unnecessary.

Insulation

contamination level 2

The contamination level refers to the protection of internal

 

 

elements of the signal converter.

 

 

Rated IP 67 (equivalent to NEMA 6-6P) against ingress of

 

 

water and other foreign bodies.

 

 

Note that the gauge can operate in contamination level 4

 

 

conditions if installed correctly.

Protection

class 1

 

Galvanic isolation of terminals

The gauge conforms to the following standard and E.U. Directive:

Standard/Directive

Description

EN (IEC) 61010-1

Safety requirements for electrical equipment for measurement, control and

 

laboratory use (low tension)

73/23/EEC

Council Directive of 19 February 1973 on the harmonisation of the laws of

 

Member States relating to electrical equipment designed for use within

 

certain voltage limits (low voltage) modified by Directive 93/68/EEC (art.13).

The BM 100 A gauge outputs are galvanically isolated from the power supply and ground in accordance with the regulations given above. An external barrier is unnecessary.

Handbook BM 100 A

17

2.2Electrical installation instructions

2.2.1 Wiring general notes

Read these instructions carefully!

Wiring must comply with any existing local regulations. Use appropriate wiring methods, conduits and fittings to maintain a NEMA 6-6P / IP 67 rating.

1.Always disconnect the mains power supply before opening the housing,

2.unscrew the terminal compartment using the special wrench provided,

3.use the top cable entry port for the power supply (see “Principal gauge components”),

4.use a metal cable gland for input power leads to minimise RFI (radio frequency interference) / EMI (electromagnetic interference) effects,

5.use a reinforced cable for the outputs,

6.do not cross or loop wires in the signal converter wiring box,

7.do not kink cables close to the glands. Cover with a metallic sheath at this point if necessary,

8.make U-bends in the cable to provide water with run-off points,

9.earthing the device shall be done according to the local applicable installation standards (EN 60079.14 in Europe),

10.and make sure that the cover thread in the housing is well greased and the O-ring is in good condition before replacing the cover.

Shutting off the power supply : non-hazardous zones

Remember to disconnect the power supply before opening the housing.

Shutting off the power supply : hazardous zones

Wait before opening the housing cover. Refer to Supplementary Installation and Operating Instructions for the BM100 A/Ai KEMA 01 ATEX 1078X Gauge for the time required.

18

Handbook BM 100 A

2.2.2 Wiring connections

Open the signal converter housing rear cover, using the plastic wrench supplied. The terminal connections are labelled. The standard connections are shown below.

Before starting to wire:

check that the power supply corresponds to the power board installed.

check which output option you have selected: this will be indicated on the underside of the rear housing cover and on the gauge nameplate.

Terminal layout : non – Ex version

X = Terminal not used

(X) = Terminal not used except for RS485 outputs

Ensuring a good contact and protection of wire strands

Local regulations concerning electrical wiring must be followed and obeyed. If no details are given, we recommend :

crimped metal sheaths over the wire strands

power supply cables should be rated for at least 500 V, with a cable diameter of 0.5 to 1.5 mm / 0.02” to 0.06” (non-Ex applications only).

the output current cable diameter should be from 0.5 to 0.75 mm / 0.02” to 0.03”

PE Ground Terminal notes

The internal earth connection shall be used according local applicable installation standards, in Europe the Low voltage Standard prescribes the connection of the yellow/green cable in case of 230VAC.

Handbook BM 100 A

19

Terminal layout : Ex version

(X) = Terminal not used except for RS485 outputs

Wiring the gauge for use in hazardous areas (Ex & FM)

Use the correct wires and spade tags for terminal connections as specified in the Supplementary Installation and Operating Instructions for the BM100 A/Ai KEMA 01 ATEX 1078X Gauge.

PE Ground Terminal notes

The internal earth connection shall be used according local applicable installation standards, in Europe the Low voltage Standard prescribes the connection of the yellow/green cable in case of 230VAC.

Options, power supply

The type of power supply to be used will be indicated on the gauge nameplate.

1.

100 – 240V AC

-15%/+10% ; Power output : 9VA

2.

24 V AC/DC

-15%/+10% ; Power output : 9VA

20

Handbook BM 100 A

Options, output

The output wires should be wired to the gauge terminals according to the type of output selected when the order was placed. The type of output supplied will be indicated on the gauge nameplate and a sticker on the inside of the housing rear cover. The principle output options are shown below:

1 passive output: passive = external power source used for measurement output

1 active output: active = internal power source used for measurement output

2 passive outputs

Handbook BM 100 A

21

1 RS 485 output

with / without optional passive analogue current output for direct readings**

1 PROFIBUS PA output *

with / without optional passive analogue current output for direct readings**

*BM 100 A device management: a GSD file providing a device communication features list is delivered with PROFIBUS PA-output devices.

**must be specified in customer order.

22

Handbook BM 100 A

3 User Interface

The BM100A may be configured and operated using a user interface set into the signal converter housing or a remote link. Remote links using PC STAR, KROHNE’s in-house developed software and Fieldbus remote links are given at the end of section 3.4.3.

3.1Power On and self-test mode

The BM100A automatically self-tests once connected to a power source. The screen readout shown on the left will be displayed. This test takes from 20 seconds to 1½ minutes to complete.

The local display will then switch over to the operation mode display shown on the following page.

Firmware release currently programmed into the EPROM (Electrically Programmable Read Only Memory)

3.2Local user interface

The BM100A Local user interface is simple to use. It has three push-buttons, three magneticallykeyed sensors for configuring the gauge without removing the front cover in hazardous zones and a three-line LCD (Liquid Crystal Display) screen at the front of the signal converter housing.

1ENTER Hall Sensor:

Keyed using a bar magnet. As item 6.

2First Display Line:

Operating mode-

measurement value

Configuration mode-

function number

3 Second Display Line:

Operating mode-

item measured and units

Configuration mode-

function definition

4UP Hall Sensor:

Keyed using a bar magnet. As item 5.

5Press the UP push-button:

• To increase the value of a selected digit

 

 

For password definition : code U or

 

6

Press the ENTER push-button:

 

 

 

• To go back a step in the menu

 

 

 

• To validate data entered

 

 

 

For password definition : code E or

 

 

7

Press the RIGHT push-button:

 

The display screen will go blank below

 

• To enter configuration mode

 

 

• To move cursor right in configuration mode

–20°C / -4°F but data can still be

 

For password definition : code R or

displayed if the instrument is

8

RIGHT Hall Sensor:

 

connected to a computer with PC

 

Keyed using a bar magnet. As item 7.

 

STAR or other remote link.

9

Status Markers:

 

 

 

See the next page for details.

 

 

10

Key register symbol:

 

 

 

 

 

 

Enter pressed

 

 

 

 

Up pressed

 

 

 

 

Right pressed

 

 

 

 

 

 

 

Handbook BM 100 A

23

3.3Status Markers

This line of numbers identifies six types of errors

by means of a triangular indictor over the number

concerned.

 

 

 

 

 

Status marker

Error / Status message

Result and action

number

 

 

▼1

No initial pulse detected

See section 4.3: Fault clearing.

▼2

No level reflection detected

See section 4.3: Fault clearing.

▼3

Level measurement frozen

Output and indication frozen; search initiated to

 

 

redetect level : if no reflection is registered :

 

 

Status marker 2 is activated.

▼4

No interface reflection found

See section 4.3: Fault clearing.

▼5

Interface measurement

Output and indication frozen; search initiated to

 

frozen

redetect interface. If no reflection is found, Status

 

 

marker 4 is activated.

▼6

Output communication failure

Contact your local KROHNE Service Department.

If the parameter 1.2.6 Error Display is configured to “YES” as explained in section 3.4.5, the complete display screen will flash when an error occurs.

3.4Parameter Settings

3.4.1 General Information

Your BM100 A has now been installed on the tank and the necessary electrical connections have been made. Once the power has been switched on, it may be necessary to configure the gauge to:

display the readings using the correct units and reference point (level / distance ),

change the measurement range,

give the instrument an address so that it may be integrated into a network,

display volume readings by programming and using a volume calibration table (strap table).

We recommend that any changes to settings be noted on the configuration record supplied in appendix B, or recorded using PC-STAR, to enable KROHNE service personnel to provide a rapid response to any enquiries.

3.4.2 Configuration Procedure

The BM100 A starts up in operating mode displaying either information according to customer specifications or factory default values.

The configuration mode (user menu) can be accessed and parameters modified by following the operator control concept summary below. Configuration procedure is described in more detail in section 3.4.3.

Instruments may equally be configured individually using a remote display available in PC-STAR software for remote connections. Please refer to the PC-STAR on-line Help file for more details.

A restricted-access factory menu is available for advanced configuration. Refer to the BM100 A Service Manual for further information.

24

Handbook BM 100 A

Handbook BM 100 A

25

3.4.3 Quick Configuration: configuration examples

The minimum functions (fct.) to be configured for a simple measurement are listed below:

1.1.1 Tank Height

1.2.1-6 Display Functions

1.4.2-3 Entry Code 1 / Code 1

1.3.1-4 Current Output 1 (& 2)

1.7.1-2 Volume calibration*

*For volume measurements

Example procedures for each set of functions are given on the following pages. Each procedure is given in a series of steps in table form and begins from the Operating Mode.

Useful definitions for quick configuration

Typical gauge used for quick configuration examples

Probe type:

twin Ø4mm/0.16” cable probe, type L

Tank height (Fct. 1.1.1):

10000.00mm/33ft

Hold distance (Fct. 1.1.2)

0.25m/10ft (see “probe measurement limits” in section 6.2.3 for

 

the Ø4mm twin cable probe, type L)

Probe length, L1 (Fct. 1.1.7):

9.00m/29.5ft (Do not modify unless advised to)

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Handbook BM 100 A

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