Endress+Hauser Prolevel FMC 662 User manual

prolevel
FMC 662
Capacitance Level
Measurement
Installation and Operating Instructions
BA 143F/00/en/06.03
016563-1000
valid for Software 1.x
Hauser + Endress
The Power of Know How

Short Instructions
..Quick configuration for level measurement
Function Matrix
Ch 1 Ch 2 Action
1Reset transmitter
Operating mode
V9H5
V8H0
●Enter 672, press »E« to register entry
- Omit if commissioned as in Section 4.1
•●Enter 0 = channels 1+2, 1 = channel 1, 2 = channel 2
Press »E« to register entry
2»Empty« calibration* V0H1 V4H1 ●Fill vessel 0…40% full (probe covered)
Enter level in %, m, ft, etc.
Press »E« to register entry
3»Full« calibration* V0H2 V4H2 ●Fill vessel 60…100% full
Enter level in %, m, ft, etc.
Press »E« to register entry
40/4 mA signal V0H3 V4H3
V0H5 V4H5
V0H6 V4H6
●Enter 0 for 0…20 mA signal, 1 for 4…20 mA signal
Press »E« to register entry
●Enter level for 0/4 mA signal (if not 0)
Press »E« to register entry
●Enter level for 20 mA signal (if not 100)
Press »E« to register entry
5Channel 1
Relays 1a and 1b
Channel 2
Relays 2a and 2b
V1H0 V5H0
V1H1 V5H1
●Enter level for switching in calibration units
Press »E« to register entry
●Enter fail-safe mode: 0 = minimum, 1 = maximum
Press »E« to register
* Can be performed in reverse order
+
+
4 yellow relay LEDs,
1 red alarm LED,
1 green operation LED LC display
Operation
Selects vertical matrix position
Selects horizontal matrix position
Select position V0H0
Selects next digit
Move decimal point
Increases value of digit
Decreases value of digit
Registers entry
Short Instructions Prolevel FMC 662
Endress+Hauser

Table of Contents
Short Instructions . . . . . . . front cover
Notes on Safety . . . . . . . . . . . . . 3
1 Introduction . . . . . . . . . . . . . . 5
1.1 Application . . . . . . . . . . . . . . . 6
1.2 Measuring system . . . . . . . . . . . . 7
1.3 Measuring principle . . . . . . . . . . . . 8
1.4 Functional description . . . . . . . . . . . 9
1.5 Technical data: Prolevel FMC 662 transmitter . 10
2 Installation . . . . . . . . . . . . . . 12
2.1 Probes . . . . . . . . . . . . . . . . 13
2.2 Prolevel FMC 662 installation . . . . . . . 14
2.3 Transmitter wiring . . . . . . . . . . . . 15
2.4 Probe connection . . . . . . . . . . . . 16
2.5 Rackbus RS-485 communications option . . 17
3 Controls . . . . . . . . . . . . . . . 18
3.1 Operating matrix . . . . . . . . . . . . 18
3.2 Keyboard and display . . . . . . . . . . 19
3.3 Commulog VU 260 Z . . . . . . . . . . 20
3.4 Rackbus RS-485 (option) . . . . . . . . . 21
4 Level Measurement . . . . . . . . . . 22
4.1 Commissioning . . . . . . . . . . . . 23
4.2 Calibration . . . . . . . . . . . . . . 24
4.3 Analogue Outputs . . . . . . . . . . . 28
4.4 Relays . . . . . . . . . . . . . . . . 30
4.5 Measured value display . . . . . . . . . 32
4.6 Parameter locking . . . . . . . . . . . 32
5 Other Operating Modes . . . . . . . . 33
5.1 Differential level measurement . . . . . . 34
5.2 Level measurement with reference probe . . 35
6 Trouble-Shooting . . . . . . . . . . . 37
6.1 Fault recognition . . . . . . . . . . . . 37
6.2 Incorrect measurements . . . . . . . . . 39
6.3 Simulated operating mode . . . . . . . . 40
6.4 Exchanging transmitters and sensors . . . . 41
6.5 Repairs . . . . . . . . . . . . . . . . 41
7 Appendix . . . . . . . . . . . . . . . 42
7.1 Calibration and linearisation in volume units . 42
Index . . . . . . . . . . . . . . . . 44
Operating Matrix . . . . . . . . . . . 46
Prolevel FMC 662 Table of Contents
Endress+Hauser 1

Table of Contents Prolevel FMC 662
2Endress+Hauser

Notes on Safety
Approved usageThe Prolevel FMC 662 is a field transmitter for level measurement which can be used
with a variety of capacitance probes. It has been designed to operate safely in
accordance with current technical and safety standards, and must be installed by
qualified personnel according to the instructions in this manual.
The manufacturer accepts no responsibility for any damage arising from incorrect use,
installation or operation of the equipment. Changes or modifications to the equipment
not expressly approved in the operating manual or by the bodies reponsible for
compliance may void the user’s authority to operate the equipment.
CertificatesThe Prolevel FMC 662 transmitter is available with certificate of conformity for use with
probes installed in hazardous areas. The Table below indicates the combinations
available and conditions for installation. Full details can be taken from the certificates.
Please note that where quoted technical data differs from that listed in Section 1.5, that
in the certificate applies.
Certificate Instruments Notes
PTB 99 ATEX 2090 Prolevel FMC 661/662,
FMB 662
II (1) GD,
[EEx ia] IIC,
install outside Ex-area
CSA
LR 53988-81
FMC 662 Class I, II, III
Div. I
Groups A-G
FM
J.I. 0Z2A7.AX
FMC 662 Class I, II, III
Div. I
Groups A-G
PTB 98 ATEX 2215 X DC 12 TE, DC .. TE .,
DC .. E ., DC ..
Capacitance probes
11500 Z(M), 11961 (Z),
21561 (Z)
with electronic insert
EC 16/17/27/37/47 Z,
FEC 12,
HTC 16/17/27 Z, HTC 10 E,
HMC 37/47 Z
II 1/2 G, II 2 G,
EEx ia IIC/IIB T6
PTB 98 ATEX 2215 X DC 12 TE, DC .. TE .,
DC .. E ., DC ..
Capacitance probes
11500 Z(M), 11961 Z,
21561 Z
with electronic insert
EC 17/37/47 Z, FEC 12
II 1 G,
EEx ia IIC/IIB T6
Prolevel FMC 662 Notes on Safety
Endress+Hauser 3

Safety conventions
In order to highlight safety-relevant or alternate operation procedures in the manual the
following conventions have been used, each indicated by a corresponding icon in the
margin.
Note!
•A note highlights actions or procedures which, if not performed correctly, may
indirectly affect operation or may lead to an instrument response which is not
planned.
Caution!
•Caution indicates actions or procedures which, if not performed correctly, may lead
to personal injury or incorrect functioning of the instrument
Warning!
•A warning indicates actions or procedures which, if not performed correctly, will lead
to personal injury, a safety hazard or destruction of the instrument
Note!
Warning!
Caution!
Notes on Safety Prolevel FMC 662
4Endress+Hauser

1 Introduction
The Prolevel FMC 662 is a field transmitter for level measurement with capacitance
probes. It may be installed, commissioned and maintained by authorised personnel only.
The operating manual must have been read and understood before the equipment is
installed: instructions are to be followed exactly.
In this manualSince it is not possible to describe all applications in detail, the standard application,
continuous level measurement on channels 1 and 2, has been used as the basis for the
functional description. Other applications as listed in Section 1.1 are described in
Chapter 5. The operating instructions are structured as follows:
•Chapter 1: Introduction;
contains general information including application, measurement
principle and functional description.
•Chapter 2: Installation;
contains hardware configuration, installation instructions,
connection diagrams and technical data.
•Chapter 3: Controls;
describes operation with the front panel keys, Commulog VU 260 Z,
and via the Rackbus RS 485 interface.
•Chapter 4: Calibration and Operation;
tells you how to commission the Prolevel for the standard
application including calibration, linearisation, analogue outputs,
relays and locking the parameter matrix.
•Chapter 5: Other Operating Modes;
describes differential level measurement and level measurement
with a reference probe
•Chapter 6: Trouble-Shooting;
contains a description of the self-checking system with error
messages, the simulation feature as well as instructions for
configuration on replacement of the transmitter, probe or
electronic insert.
•Chapter 7: Appendix:
contains a flowchart for calibration and linearisation using
volume units.
•Index: lists key words to help you find information quickly.
Short instructionsShort instructions for the standard set-up, continuous level measurement, which is used
in 80% of applications, are to be found in the front cover. We advise you to commission
as described in Section 4.1. before using this procedure as this ensures that probes can
be exchanged without the need for re-calibration.
Further documentationIn addition to this manual, the following publications provide information on configuration
of the Prolevel FMC 662.
•BA 028F Commulog VU 260 Z handheld terminal
•BA 134F Rackbus RS 485
The installation of the probes, electronic inserts and accessories is described in the
documentation accompanying these articles - see text for references. When installing
probes in explosion hazardous areas the instructions included in the accompanying
probe certification must also be observed.
Prolevel FMC 662 Chapter 1: Introduction
Endress+Hauser 5

1.1 Application
The Prolevel FMC 662 is designed for level measurement on one or two channels with a
capacitance probe. The applications described in this manual are as follows:
•Level or volume measurement …Chapter 4
•Differential level measurement …Chapter 5
•Level measurement with a reference probe …Chapter 5.
Prolevel transmitters may also be used for applications in explosion hazardous areas
and possess intrinsically-safe sensor circuits conforming to EEx ia IIC. A list of certificated
combinations is to be found in »Notes on Safety« preceding this chapter.
0/4...20 mA limit relays
Prolevel FMC 662
transmitter
BA143_01
Liquids
Bulk solids
hazardous area safe area
Channel 2
Channel 1
alarm
relay
Fig. 1.1:
Standard application showing
Prolevel FMC 662 controlling
level measurement
➀ in bulk solids
➁ in liquids
channel 2
BA143_02
difference
h2- h1level
channel 1
Fig. 1.2:
Left:
Prolevel FMC 662 used for level
difference measurement with
screen control
Right:
Prolevel FMC 662 used for level
measurement with reference
probe
➀ Measuring probe
➁ Reference probe
channel 2
channel 1
BA143_03
hazardous area safe area
level
Chapter 1: Introduction Prolevel FMC 662
6Endress+Hauser

1.2 Measuring system
A working system for level measurement comprises:
•Prolevel FMC 662 transmitter,
•Capacitance probe for level measurement
•Electronic insert EC 37 Z or EC 47 Z
The Prolevel may operate as a stand alone unit with standard 0/4…20 mA output; two
sets of two relays, freely assignable to channel 1 or 2, can be used to control pumps,
valves, annunciators etc.. Alternatively, the Prolevel may be operated remotely over the
optional Rackbus RS 485 interface, either direct from a personal computer or as part of
a process control system. Connection to Modbus, Profibus or FIP networks can be
realised through the gateways ZA 672, ZA 673 or ZA 674 respectively.
VersionsThe Prolevel is available in two versions:
•With display and front panel controls,
•Without display and front panel controls — in this case the transmitter must be
configured by the Commulog VU 260 Z handheld terminal or over the optional
Rackbus RS-485 interface.
In all other respects, the two versions are identical. More details on controls and operation
can be found in Chapter 3.
BA143_04
Prolevel transmitters (and other units with Rackbus RS-485)
Rackbus RS-485
Personal computer with
operating software, e.g.
Commutool, Commuwin,
Commugraph
alternative
FXA 675 + ZA 67x
supervisory network
RS-485 adapter or PC card
Fig. 1.3:
The Prolevel FMC 662 can be
used as a stand-alone unit, see
Figs 1.1 and 1.2 or as part of
an operating system.
An RS-485 adapter or PC card
allows direct connection to a
personal computer, the FXA 675
and gateway ZA 67x connection
to a supervisory system using
the Modbus, Profibus or FIP
protocol
Prolevel FMC 662 Chapter 1: Introduction
Endress+Hauser 7

1.3 Measuring principle
The Prolevel FMC 662 measures level on the basis of the capacitance and hydrostatic
measurement principles. In both cases the measured value is processed by the
electronic insert and passed on as a frequency signal.
Capacitance
measurement The probe and vessel form the two plates
of a capacitor, the total capacitance of
which can then be calculated from the
formula:
Ctot =C
1 + 2πε0εrx L pF (1)
--------------------------------
ln (D/d)
whereby
Ctot = total capacitance
C1= capacitance or feed through
ε0= dielectric constant of air (8.85)
εr= rel. dielectric constant of product
D= diameter of vessel
d= diameter of probe
L= length of probe immersed in
product in meters
Measurement in
conducting media If the product conducts, the capacitance is
now determined by the thickness and
properties of the insulating material
surrounding the probe. Equation (1)
applies, whereby the variable D is now the
diameter of the probe with insulation. In this
case the capacitance varies by approx.
300 pF/m.
Measurement is independent of dielectric
constant and not affected by changes in
this variable.
C1
BA143_05
d
L
D
Fig. 1.4:
Capacitance measurement principle
BA143_06
dConducting
product
L
D
insulation
Fig. 1.5:
Measurement in conducting media
Chapter 1: Introduction Prolevel FMC 662
8Endress+Hauser