Endress+Hauser Silometer FMC 672 Z User manual

silometer
FMC 672 Z/677 Z
Level Measurement
Installation and Operating Instructions
BA 064/00/en/06.03
015576-1000
Software 3.x
Hauser + Endress
The Power of Know How

Procedure
*Can be performed in reverse order
Function Channel
1Channel 2Action
1 Reset transmitter V9H5 ●Enter 671:
Use »+« and »-« keys, ⇒ changes digit
Press »E« to register entry
- Omit for second channel and if
commissioned as in Section 4.1
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
4 0/4 mA signal V0H3
V0H5
V0H6
V4H3
V4H5
V4H6
●Enter 0 for 0…20 mA, 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
5 Relay 1 V1H0
V1H1
V5H0
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
Silometer FMC 672 Z/677 Z Measurement at a Glance

FMC 672 Z
FMC 677 Z/Commulog VU 260 Z
Selects vertical matrix position
Selects horizontal matrix position
Select positon V0H0
Selects next digit
Move decimal point
Increases value of digit
Decreases value of digit
Registers entry
Select matrix position
Selects position V0H0
Calls error diagnosis
Calls entry mode
Select next digit
Increase and decrease value
Move decimal point to left
Move decimal point to right
Registers entry and quits mode
Breaks off entry without storing value
Measured
value
Bar chart
Matrix
selection
Relay status
red: de-energised
green: energised
Parameter entry
Commulog
sockets
Alarm relay
lit: fault
Current output
check
Matrix position
0 100
VH
00
1
2
VH
+
E
+
-
mA2
+
-
mA1
FMC 672 Z
1
2
+
-
mA2
+
-
mA1
FMC 677 Z
Relay status
red: de-energised
green: energised
Commulog
sockets
Alarm relay
lit: fault
Current output
check
See also »Controls«, Chapter 3
Silometer FMC 672 Z/677 Z Measurement at a Glance
1

Table of Contents
Measurement at a Glance . . . . 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
2 Installation . . . . . . . . . . . . . . 10
2.1 Probes and sensors . . . . . . . . . . . 10
2.2 Silometer installation . . . . . . . . . . . 11
2.3 Transmitter wiring . . . . . . . . . . . . 13
2.4 Sensor connection . . . . . . . . . . . . 16
2.5 Hardware configuration . . . . . . . . . . 17
2.6 Technical data: Silometer FMC 672 Z/677 Z
transmitter . . . . . . . . . . . . . . . 18
3 Controls . . . . . . . . . . . . . . . 19
3.1 Commutec operating matrix . . . . . . . . 19
3.2 Configuration and display:
Silometer FMC 672 Z . . . . . . . . . . . 20
3.3 Configuration and display:
Silometer FMC 677 Z . . . . . . . . . . . 21
4 Calibration and Operation . . . . . . . 22
4.1 Commissioning . . . . . . . . . . . . . 22
4.2 Calibration: level measurement . . . . . . 23
4.3 Calibration: volume measurement . . . . . . 24
4.4 Level offset . . . . . . . . . . . . . . . 25
4.5 Measured value display . . . . . . . . . 26
4.6 Locking the parameter matrix . . . . . . . 26
5 Linearization . . . . . . . . . . . . . 27
5.1 Linearization for a cylindrical, horizontal tank . 28
5.2 Linearization for a tank with conical outlet . . 29
5.3 Other linearization modes . . . . . . . . . 32
6 Analogue Outputs . . . . . . . . . . . 33
6.1 Analogue output settings . . . . . . . . . 34
7 Limit Switches . . . . . . . . . . . . 36
7.1 Control parameters . . . . . . . . . . . 37
7.2 Relay operating modes . . . . . . . . . . 38
8 Other Applications . . . . . . . . . . 41
8.1 Differential level measurement . . . . . . . 42
8.2 Level measurement with reference probe . . 44
9 Trouble-Shooting . . . . . . . . . . . 46
9.1 Trouble-shooting tables . . . . . . . . . 46
9.2 Simulated operating mode . . . . . . . . 49
9.3 Exchanging transmitters, probes and
electronic inserts . . . . . . . . . . . . 50
9.4 Repairs . . . . . . . . . . . . . . . . 50
10 Quick Programming Guide . . . . . . . 51
10.1 Level measurement (2 channels) . . . . . . 51
10.2 Level measurement (Channel 1) . . . . . . 52
10.3 Linearization for horizontal cylinder or
conical outlet . . . . . . . . . . . . . 53
10.4 Differential level measurement . . . . . . . 54
10.5 Level measurement with reference probe . . 55
Index . . . . . . . . . . . . . . . . 56
Operating Matrix . . . . . . . . . . . 58
Silometer FMC 672 Z/677 Z Table of Contents
2

Notes on Safety
The Silometer FMC 672 Z/677 Z is a level measurement transmitter which can be used
with a variety of probes and sensors. It must be installed by qualified personnel according
to the instructions in this manual.
CertificatesThe Silometer FMC 672 Z/677 Z transmitter is available with certificate. 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 2.6, that in the certificate applies.
Certificate Instruments Notes
PTB 02 ATEX 2203 X Silometer FMC 672 Z/677 Z II (1) GD
[EEx ia] IIC/IIB,
install outside Ex-area
PTB 98 ATEX 2215 X DC 12 TE, DC .. TE ., DC .. E ., DC ..
Capacitance probes
11500 Z(M), 11961 (Z), 21561 (Z)
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
electronic insert EC 17/37/47 Z, FEC 12
II 1 G,
EEx ia IIC/IIB T6
Z-65.13-107 DC 12 TE, DC .. TE ., DC .. E ., DC ..
Capacitance probes
11500 Z, 11961 Z, 21561 Z
electronic insert EC 37/47 Z, FEC 12,
HMC 37/47 Z
FMC 470, FMC 671/672 Z,
FMX 570 Z, FMX 770,
SIF 100/110
Continuous level measurement
for overspill protection in
stationary vessels
(for storage of non-combustible,
water-polluting liquids)
German Lloyd
GL No. 97517 HH
Silometer FMC 672 Z
Capacitance probes
electronic insert EC 37 or EC 47
electronic insert EC 17 Z
Level indication on channel 1
(EC 37 Z or EC 47 Z)
Level limit detection on channel 2
(EC 17 Z)
Suitable for unlimited use within
the rules
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
Silometer FMC 672 Z/677 Z Notes on Safety
3

Silometer FMC 672 Z/677 Z Notes on Safety
4

1 Introduction
Quick Operating GuidesThe front cover contains short instructions for the standard set-up, continuous level
measurement with capacitance probes, which is used in 80% of applications.
For Users familiar with the operating matrix of Endress+Hauser Commutec transmitters
in general and the Silometer FMC 672 Z/677 Z in particular, a Quick Operating Guide for
the most important operating modes is to be found in Chapter 10.
In this manualUsers unfamiliar with the Silometer FMC 672 Z/677 Z must read the operating
instructions. Since it is not possible to describe all applications in detail, the standard
application used in 80% of all applications, continuous level measurement, has been
used as the basis for the functional description. Other applications as listed in Section 1.1
are described in Chapter 8. The 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 for the plug-in card.
•Chapter 3: Controls;
describes operation with the front panel keys, Commulog VU 260 Z
and ZA 672.
•Chapter 4: Calibration and Operation;
tells you how to commission the Silometer for the standard
application of continuous level measurement.
•Chapter 5: Linearization
tells you how to calibrate the Silometer to measure volume in a
horizontal cylindrical tank or a tank with a conical outlet.
•Chapter 6: Analogue Outputs;
describes in detail the setting of the 0/4…20 mA signal line.
•Chapter 7: Limit Switches;
describes in detail the setting of the relays.
•Chapter 8: Other Applications;
describes the configuration of the Silometer for further applications not
covered in Chapter 4.
•Chapter 9: 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 10: Quick Programming Guide;
provides configuration flowcharts for the principle applications.
•Chapter 11: Index;
lists key words to help you find information quickly.
Further documentationIn addition to this manual, the following publications provide information on configuration
of the Silometer FMC 672 Z/677 Z.
•BA 028 Commulog VU 260 Z handheld terminal
•BA 054 ZA 672 Modbus Gateway
Installation of the probes, electronic inserts and accessories are 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.
Silometer FMC 672 Z/677 Z Chapter 1: Introduction
5

1.1 Application
The Silometer FMC 672 Z/677 Z is designed for level measurement on one or two
channels with a capacitance or impedance probe. The applications described in this
manual are as follows:
•Continuous level measurement (Chapter 4)
•Volume measurement in horizontal or conical tanks (Chapter 5)
•Differential level measurement (Chapter 8)
•Continuous level measurement with reference probe (Chapter 8).
Silometer transmitters may also be used for applications in explosion hazardous areas
and possess intrinsically-safe sensor circuits conforming to EEx ia IIC and IIB. A list of
certificated combinations is to be found in »Notes on Safety« preceding this chapter.
0/4...20 mA,
0/2...10V
outputs
Min./max.
relays
Silometer
FMC 672 Z/
677 Z
transmitter
BA064E01
Liquids
Bulk solids
Channel 1
non-Ex
Channel 2
Fig. 1.1:
Standard application showing
Silometer FMC 672 Z controlling
level measurement
➀ in liquids
➁ in bulk solids
level 1
BA064E02
difference
h2- h1
Fig. 1.2:
Level difference measurement
with rake control by
Silometer FMC 672
Right:
Silometer FMC 672 Z used for
continuous level measurement
with reference probe
① Measuring probe
② Reference probe
Channel 2 Channel 1
Level
Channel 2
Channel 1
BA064E03
Ex non-Ex
Silometer FMC 672 Z/677 Z Chapter 1: Introduction
6

1.2 Measuring system
A working system for level measurement comprises:
•Silometer FMC 672 Z/677 Z transmitter,
•Capacitance or impedance probe
•Electronic insert EC 37 Z or EC 47 Z.
The Silometer may operate as a stand alone unit with standard 0/4…20 mA and 0/2…10 V
outputs. Two relays, freely assignable to channel 1 or 2, can be used to control pumps,
valves, annuciators etc.. An alarm relay monitors the correct functioning of the
measurement point and trips on fault condition. If controlled remotely with other
Commutec transmitters within a process control system, the Silometer is addressed by
the Rackbus. In this case, communication is controlled by a ZA 672 Modbus Gateway,
see Fig 1.3, or any other ZA 67…Gateway.
VersionsThe Silometer is available in two versions:
•FMC 672 Z with display and front panel controls, with remote configuration
facilities,
•FMC 677 Z for remote configuration by Commulog VU 260 Z handheld
terminal or via ZA 67…/672 interface.
In all other respects, the two versions areidentical. More details on controls and operation
can be found in Chapter 3.
BA064E04
Commutec transmitters
Rackbus
Personal
computer or
PC system
Programmable logic
controller with Modbus port
Sensors Actuators
RS-232C interface
Modbus interface
ZA 370
or
ZA 371
ZA 672
Fig. 1.3
The Silometer FMC 672 Z/677 Z
can be used as a stand-alone
unit or as part of a process
control system
Silometer FMC 672 Z/677 Z Chapter 1: Introduction
7

1.3 Measuring principle
The Silometer FMC 672 Z/677 Z measures level on the basis of the capacitance/
impedance measurement principle. The measured value processed by the electronic
insert and passed on as a frequency signal.
Capacitance/impedance
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
For vessels with a diameter greater than 1 m, the capacitance varies by approx. 12 pF
per meter of covered probe.
Measurement in
conducting media If the product conducts, the capacitance is
determined by the thickness and quality 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
BA064E05
d
L
D
Fig. 1.4
Capacitance measurement principle
BA064E06
dConducting
product
L
D
Fig. 1.5
Measurement in conducting media
Silometer FMC 672 Z/677 Z Chapter 1: Introduction
8