Endress+Hauser FMX 570 User manual

silometer
FMX 570
Level Measurement
Operating Instructions
BA 119F/00/en/06.03
016338-1000
Software Version 1.x
FMX 570
Hauser+Endress
The Power of Know How

Level Measurement at a Glance
*Can be performed in reverse order
Function Matrix Action
1 Reset transmitter V9H5 ●Enter 671: »+« and »-« keys, ⇒ changes digit
Press »E« to register entry
- Omit if commissioned as in Section 4.1
2 »Empty« calibration* V0H1 ●Fill vessel 0…40% full (probe covered)
Enter level in %, m, ft, etc.
Press »E« to register entry
3 »Full« calibration* V0H2 ●Fill vessel 60…100% full
Enter level in %, m, ft, etc.
Press »E« to register entry
4 0/4 mA signal V0H3
V0H5
V0H6
●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
Silometer FMX 570 Measurement at a Glance

Silometer FMX 570
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
0 100
VH
00
VH
+
E
FMX 570
m
Measured
value
Bar chart
Matrix
selection
Parameter entry
Alarm relay
lit: fault
Matrix position
Test sockets for
0/4…20 mA output
+
+
See also »Controls«, Chapter 3
Measurement at a Glance Silometer FMX 570
1

Table of Contents
Measurement at a Glance
Notes on Safety . . . . . . . . . . . . 3
1 Introduction . . . . . . . . . . . . . 5
1.1 Application . . . . . . . . . . . . . . . 6
1.2 Measuring principle . . . . . . . . . . . 7
2 Installation . . . . . . . . . . . . . . 8
2.1 Probes and sensors . . . . . . . . . . . 8
2.2 Silometer installation . . . . . . . . . . . 9
2.3 Transmitter wiring . . . . . . . . . . . . 11
2.4 Sensor connection . . . . . . . . . . . . 13
2.5 Technical data: Silometer FMX 570 transmitter . 14
3 Controls . . . . . . . . . . . . . . . 15
3.1 Commutec operating matrix . . . . . . . . 15
3.2 Configuration and display . . . . . . . . . 16
4 Calibration and Operation . . . . . . . 17
4.1 Commissioning . . . . . . . . . . . . . 17
4.2 Calibration for level measurement . . . . . . 18
4.3 Calibration for linear volume or weight
measurement . . . . . . . . . . . . . . 19
4.4 »Dry calibration« for open vessels . . . . . 20
4.5 Level offset value . . . . . . . . . . . . 22
4.6 Measured value display . . . . . . . . . 23
4.7 Locking the parameter matrix . . . . . . . 23
5 Linearization . . . . . . . . . . . . . 24
5.1 Linearization for a horizontal cylindrical tank . 25
5.2 Linearization for a tank with conical outlet . . 26
5.3 Other modes . . . . . . . . . . . . . . 29
6 Analogue Outputs . . . . . . . . . . 30
6.1 Analogue output settings . . . . . . . . . 31
7 Trouble-Shooting . . . . . . . . . . . 33
7.1 Trouble-shooting tables . . . . . . . . . 33
7.2 Simulated operating mode . . . . . . . . 35
7.3 Exchanging transmitters, probes and electronic
inserts . . . . . . . . . . . . . . . . 36
7.4 Repairs . . . . . . . . . . . . . . . . 37
8 Quick programming guide . . . . . . . 38
8.1 Level measurement . . . . . . . . . . . 38
8.2 Continuous volume measurement (linearization) 39
Index . . . . . . . . . . . . . . . . 40
Operating matrix
Silometer FMX 570 Table of Contents
2

Notes on Safety
The Silometer FMX 570 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 FMX 570 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 2.5, that in the certificate applies.
Certificate Instruments Notes
TÜV 00 ATEX 1640 Silometer FMC 671 Z/676 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)
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
PTB 98 ATEX 2094 DB 50, DB 50 L,
DB 51, DB 52, DB 53
II 1/2 G, II 2 G,
EEx ia IIC T4…T6
DIBt No. Z-65.11-29 Silometer FMX 570,
DB 50…52
with electronic insert
FEB 17 / FEB (17) P
Continuous level measurement
for overspill protection in stationary
vessels
(for storage of non-combustible,
water-polluting liquids)
Silometer FMX 570 Notes on Safety
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.
Notes on Safety Silometer FMX 570
4

1 Introduction
Quick Operating GuidesThe front cover contains short instructions for continuous level measurement with the
default parameters.
In this manualUsers unfamiliar with the Silometer FMX 570 must read the operating instructions, which
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 the front panel keys and operating matrix.
•Chapter 4: Calibration and Operation;
tells you how to commission the Silometer for 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: 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 8: Short Operating Guide
contains a flowcharts for level and volume measurements
•Chapter 9: Index;
lists key words to help you find information quickly.
•Chapter 10: Operating Matrix
contains the operating matrix, the default parameters and a table to
enter your operating parameters,
Further documentationInstallation 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 FMX 570 Chapter 1: Introduction
5

1.1 Application
The Silometer FMX 570 is designed for level measurement with a capacitance or
hydrostatic pressure probe in safe or explosion hazardous areas. It possesses an
intrinsically-safe sensor circuit conforming to EEx ia IIC and IIB. A list of certificated
combinations is to be found in »Notes on Safety« preceding this chapter. A working
system for level measurement comprises:
•Silometer FMX 570 transmitter,
•Capacitance, Multicap or Deltapilot S probe
•Electronic insert
Silometer function The capacitance or pressure measured by the sensor is converted into a frequency
signal by the electronic insert located in its head. The Silometer FMX 570 supplies the
power and receives a level-proportional frequency signal over a two-core cable. The
signal is then processed to provide a level or volume measurement.
Fail-safe operation If a fault condition is detected, e.g. a break in sensor - transmitter cable, the analogue
signal switches to -10 % or +110 % level or holds the last measured value. In addition,
the alarm relay de-energises.
2
1
1
FMX 570
mA1
0/4...20 mA,
0/2...10V
output
Silometer
FMX 570
transmitter
Liquids
Bulk solids
Channel 1
Ex non-Ex
or
or
BA119Y01
Fig. 1.1:
Standard application showing
Silometer FMX 570 controlling
level measurement
➀ Capacitance probe
➁ Deltapilot
frequency
analog
digital
current
voltage
sens. [Hz/pF]offset [Hz]
offset [pF] sens. [pF/cm]
range upper limit
V2
range lower limit
V1
frequency
electronic-
insert electronic- insert
capacit./
pressure
volume
V2
V1level
volume
H2
H1
level
cap./press.
level zero point shift
BA119E08
Fig. 1.2
Signal processing in the
Silometer FMX 570
Chapter 1: Introduction Silometer FMX 570
6

1.2 Measuring principle
The Silometer FMX 570 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.
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
εr= rel. dielectric constant of product
D= diameter of vessel
d= diameter of probe
L= length of probe immersed in
product in meters
If the product conducts, the capacitance is
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.
In an open vessel, the level is derived from
the hydrostatic pressure exerted by a
column of liquid on a probe placed at its
foot. The pressure exerted is:
p1=ρx g x h (2)
whereby
p1= hydrostatic pressure
ρ= density of the liquid
g = acceleration due to gravity
h = height of the liquid column.
Assuming a constant density, the level of
the liquid can be calculated from the
pressure measured by the Deltapilot.
BA119Y05
d
L
D
C1
Fig. 1.3
Capacitance measurement principle
BA119E06
dConducting
product
L
D
Fig. 1.4
Measurement in conducting media
BA119Y07
p1= ρx g x h
h
atmospheric
pressure
p1
Fig. 1.5
Hydrostatic measurement principle
Capacitance
measurement
Hydrostatic
measurement
Measurement in
conducting media
Silometer FMX 570 Chapter 1: Introduction
7

2 Installation
This Chapter describes:
•The probes for use with the Silometer FMX 570
•Silometer installation in a rack or Monorack housing
•Transmitter wiring
•Sensor connection.
•Technical data.
Warning!
•The Silometer FMX 570 transmitter must be installed outside explosion hazardous
areas.
2.1 Probes and sensors
Table 2.1 lists the probes most frequently used with the Silometer FMX 570 transmitter.
In addition to those listed, all probes which can be used with an EC 37 Z or EC 47 Z
electronic insert can be connected to the transmitter. Installation hints can be taken from
the appropriate Technical Information Sheet.
Sensor constants Deltapilot S sensors and EC 37 Z/47 Z inserts for capacitance probes are supplied with
the sensor constants zero frequency »fo« and sensitivity »∆f« or »S«. For Deltapilot S
sensors the constants are printed on a label stuck inside the sensor head, for inserts
they are printed on the name plate, see Fig. 7.1, Section 7.3.
Note these constants and enter them into fields V3H5 and V3H6 during commissioning,
Section 4.1. This dispenses with the need for a recalibration of the transmitter on
replacement of the sensor or insert.
Principle Probe TI sheet Insert
Capacitance,
Multicap
11 500 Z TI 161F
Multicap DC 11 TI 169F
Multicap DC 16 TI 096F
Multicap DC 21 TI 208F
Multicap DC 26 TI 209F
Multicap TA TI 239F
Multicap TE TI 240F
Multicap E TI 242F
Multicap A TI 243F
EC 37 Z
EC 47 Z
FEC 12
Hydrostatic pressure Deltapilot S TI 031F
DB 50...53 TI 257P
FEB 17 (P)
Table 2.1:
Selection of probes suitable for
use with the Silometer FMX 570
Cell
type Electronic insert FEB 17/FEB 17 P
Range f0∆fRange f
0∆f
0.1 bar BA 0…100 mbar 200 10 DA -100…100 mbar 200 5
0.4 bar BB 0…400 mbar 200 2.5 DB -400…400 mbar 200 1.25
1.2 bar BC 0…1200 mbar 200 0.833 DC -900…1200 mbar 200 0.476
4.0 bar BD 0…4000 mbar 200 0.25 DD -900…4000 mbar 200 0.204
Table 2.2:
Measuring ranges and sensor
constants of the
Deltapilot S DB 5x
Silometer FMX 570 Chapter 2: Installation
8

2.2 Silometer installation
There are three possibilities for installing Silometer transmitters:
•Standard 19" rack with space for 12 7HP cards,
•Field housing with space for up to 6 7HP cards,
•Monorack housings for single transmitters.
Rack installationA Racksyst system can be ordered fully wired, in which case the sensors and the external
power supply only need to be wired. Planning hints can be found in Publication
SD 041/00/e, »Racksyst Assembly Racks« .
For non-Racksyst installations and for installations including non-Racksyst cards, fill the
rack as follows (see also Fig. 2.1):
Rack arrangement
Step Procedure
1 Allocate the power supply (NT 470) at the rightmost position.
- If two NT 470s are used, install a 2 HP dummy panel between them.
2 Install non-intrinsically safe transmitters next to the power supply.
- Install a 2 HP dummy panel between all foreign transmitters and between
Racksyst cards and foreign transmitters
3 Install intrinsically safe transmitters to the left of the rack.
- Install foreign cards first.
- Install dummy panels between all foreign transmitters and between Racksyst
cards and foreign transmitters in accordance with the instructions on the
Ex-Certificate.
- No spacer is required between Racksyst cards.
Racksyst field housingInstructions for installing Commutec transmitters in the Racksyst field housing with half
19" rack are to be found in Publication PI 003.
•Check that the field housing is not installed in direct sunlight.
- If appropriate fit a protective sun cover.
•The maximum permissible ambient temperature for the field housing varies
between +50…+60 °C according to the power consumption of the cards
(0…20 W)
BA119E09
Non-E+H
(Ex)i devices E+H (Ex)i devices E+H devices Non-E+H devices NT power supply
Spacing between
non-E+H (Ex)i devices
as per certificate
2 HP dummy panel between
E+H and non-E+H devices
Fig. 2.1:
Recommended arrangement for
Racksyst rack assemblies
Chapter 2: Installation Silometer FMX 570
9

Monorack housing The Silometer FMX 570 transmitter and Monorack housing are supplied separately. The
system must be assembled as shown in Fig. 2.2 before use.
•The Monorack is prepared for wall-mounting, degree of protection IP 40.
•The site must be chosen such that the operating temperature of
-20°C…+60°C for one Monorack and -20°C…+50°C for Monorack banks is
not exceeded.
Full details of the Monorack installation procedure can be taken from the manual supplied
with it.
Monorack protective
housing If the Silometer FMX 570 transmitter and Monorack housing are to be mounted at an exposed site, then it is recommended that they be installed in the protective housing,
degree of protection IP 55, which is available as an accessory.
•The protective housing accomodates two Silometer FMX 570 transmitters.
•The permissible ambient temperature is -20°C…+50°C for one Monorack and
-20°C…+40°C for two.
Dimensions and instructions for installation are to be found in the Technical Information
sheet TI 099/00/e.
BA119E10
Plug-in card
Monorack
housing
Monorack base
(terminal block)
Retaining
screws
Retaining
flap
Fig. 2.2:
Assembly and disassembly of
the Monorack housing
Power
pack
Fig. 2.3:
Monorack protective housing
BA119E60
Silometer FMX 570 Chapter 2: Installation
10

2.3 Transmitter wiring
Warning!
•Make electrical connections with the power supply switched off!
•When wiring up probes and sensors in explosion hazardous areas, observe the
instructions on the certificate and other appropriate regulations.
Rack wiringFig. 2.4 is a pin assignment diagram for the Silometer FMX 570.
•Terminals z 30, b 14 and d 14 are connected internally
•Inputs d2, d4 are electrically isolated from the circuit and each other.
•The circuit zero of the unit ( ⊥) is connected to the negative terminal of the
supply voltage.
Note!
•Two indexing pins, at positions 2 and 9 in the rack connector ensure that Silometer
FMX 570 transmitters only can be inserted at these points. The pins must be
inserted if the rack is not custom built by Endress+Hauser.
Analogue outputsThe negative terminal of the current output, of the voltage output and of the supply voltage
are connected to the circuit zero of the Silometer FMX 570 module.
•Any number of measurement and control units can be connected in parallel to
the voltage output, provided that all potentials are related to negative terminal
of the 24 V supply (RL≥10 kOhm).
- There is no limit to the number of floating devices, apart from that imposed
by considerations of maximum or minimum load.
•Only one non-floating device can be connected to each of the current
outputs.
d b z
+
2
4
6
8
2
1
+
-EC 47 Z
d2
d4
3
2
+
-FEB 17 (P)
d2
d4
2
1
+
-EC 37 Z
d2
d4
L
L+ 20 V...30 V
z30
d32
+
+
d12
d14 0/4...20 mA
+
+
b12
b14 0/2...10 V
rz26
d28
z28
u
a
10
12 + +
14
16
32 L+
18
20
22
24
26 r
28 u a
30 -L
Analogue
outputs
Alarm relay
Power supply
Level,
volume
BA119Y11
Alarm relay
FMX 570
Non-Ex- area
Input
DC supply
Deltapilot S
Ex-area
Current
Voltage
Capacitance/
Multicap probe
Capacitance/
Multicap probe
Input
Fig. 2.4:
Pin assignment diagram for
Silometer FMX 570
Chapter 2: Installation Silometer FMX 570
11

Monorack wiring Fig. 2.5 shows the layout in the base of the Monorack II housing, the pin assignments
correspond to those in Fig. 2.4. When connecting together several Monoracks, follow
the instructions supplied with the housing.
•Set the jumper to position "Racksyst I"
•Insert the coding pins supplied at positions 2 and 9 in the female connector
at the base of the housing.
•The pin assignments printed in black are valid for the Silometer FMX 570.
Note!
If you are installing the Silometer FMX in a Monorack I housing, please note that there is
no jumper switch. In addition, for the 24 VDC version, the dummy card in the power
control slot must be replaced by the 24 V card supplied.
PC board
slot
BA119E14
Power
Outputs
see Fig. 2.4
Input, d2, d4
Insert coding pins
for Z-version at
Positions
2 and 9
Hole for mounting
screw
Hole for mounting
screw
Jumper positioned
for Racksyst I card
Fig. 2.5:
Layout of Monorack terminal
blocks
Silometer FMX 570 Chapter 2: Installation
12

2.4 Sensor connection
The Silometer FMX 570 can be operated with a variety of sensor types, each requiring
a different electronic insert, e.g.:
•EC 37 Z or EC 47 Z for capacitance and Multicap probes
•EB 17 Z or EB 27 Z for Deltapilots
Sensor cableUse commercial 2-core installation cable, max. line resistance 25 Ω/core, for the sensor/
transmitter cable. If electromagnetic interference is to be expected, we recommend
•that the PFM negative line be grounded at the sensor (check Ex-regulations)
•in case of heavy interference, that shielded cable be used, grounded at both
ends.
EC 37 Z and EC 47 ZThe electronic inserts EC 37 Z and EC 47 Z have two measuring ranges which can be
selected by inserting a bridge between terminals 4 and 5 of the insert, see Fig 2.6. Full
instructions on the selection of the insert are to be found in Publication E 07.80.06/1c.
•Note the zero frequency fo____ and sensitivity S_____on the insert.
FEB 17 (P)The FEB 17 (P) electronic insert can be used with Deltapilot S sensors to measure level
and volume in open vessels.
•Note the zero frequency fo_____ and sensitivity ∆f _____ of the probe
(see Table 2.2 on page 8)
BA119E15
Insert bridge for
Range II (standard)
Remove for Range I
Ground
connection
FMX 570 input
Fig. 2.6:
Connection diagram for
electronic inserts
EC 37 Z/EC 47 Z
FEB 17/FEB 17 P
1234
BA119Y18
FMX 570 input
Fig. 2.7:
Connection diagram for
electronic insert
FEB 17 (P)
Chapter 2: Installation Silometer FMX 570
13

2.5 Technical data: Silometer FMX 570 transmitter
Construction •Design: 19", 7 HP, plug-in card
•Front panel: black synthetic with blue field inlay, grip and markings,
Protection: IP 20 (DIN 40050)
•Dimensions: see diagram
•Weight: approx. 0.3 kg/11 oz
•Operating temperature: -0 °C...+70 °C/+32 °F..158 °F
Storage temperature: -20 °C...+85 °C/-4 °F...185 °F
Electrical connection •Multipoint plug: conforming to DIN 41612, Part 3, Type F (28-pole)
Coding pins in positions 2 and 9
•Power supply: 24 V DC (+6 V…-4 V); residual ripple 2 V, within tolerance
•Supply current: approx. 90 mA, max. 125 mA
•Signal inputs: Electrically isolated from the rest of the circuitry.
Protection [EEx ia] IIC or IIB
•Probes: Capitance probes, impedance probes
with EC 37 Z or EC 47 Z electronic insert
Deltapilot S with electronic insert FEB 17 / FEB 17 P
•Electromagnetic Interference Emission to EN 61326, Electrical Equipment Class A
compatibility: Interference Immunity to EN 61326
Outputs •Analogue output: 0...20 mA/4...20 mA selectable, RLmax. 500 Ω
0...10 V/2...10 V selectable, RLmin. 10 k Ω
•Alarm relay relay with a potential-free change-over contact
Max. switching capacity:
2.5 A, 250 VAC, 300 VA at cos ϕ> 0.7 or
100 VDC, 90 W
Certificates •Silometer FMX 570 Intrinsically safe circuit to [EEx ia] IIC and IIB
(PTB certification in preparation)
see also »Safety Notes«.
BA119E22
Fig.2.8
Silometer FMX 570 plug-in card
Silometer FMX 570 Chapter 2: Installation
14

3 Controls
This Chapter describes how the Silometer FMX 570 transmitters are operated. It is
divided into the following sections:
•Commutec operating matrix
•Configuration and display: Silometer FMX 570
3.1 Commutec operating matrix
All functions, including the analogue outputs and relay switch points are configured via
the operating matrix, see Fig. 3.1:
•Each field in the matrix is accessed by a vertical (V) and horizontal (H)
position which can be entered at the front panel of the FMX 570 with the
V and H keys
•The parameters are entered with the plus, minus, arrow and enter keys.
Parameter at current matrix
position
Pressed together
Move to V0H0
Move H0 …H9, H0
Move V0…V9, V0
BA119E25
Current matrix position
Fig. 3.1:
Silometer FMX 570 display
Parameter matrix operation with
function of V and H keys.
The complete matrix has 10 x 10
fields, although not all are used
Silometer FMX 570 Chapter 3: Controls
15

3.2 Configuration and display
Fig. 3.1 shows the LC-display with matrix of the Silometer FMX 570, Fig. 3.2 its front panel.
Table 3.1 below describes the function of the operating keys.
•Changes are not possible if the matrix has been locked (Section 4.7).
•Non-flashing parameters are either read-only indications or locked entry fields.
0 100
VH
00
VH
+
E
FMX 570
m
Measured value display with
10-step bar chart showing
percentage 0/4 …20 mA signal
Parameter entry keys
Alarm relay LED
•Lights on fault condition,
relay de-energises
•Flashes on warning,
relay remains energised
Matrix selection keys
Matrix position indicator
BA119E23
Test sockets for
0/4…20 mA current output
Fig. 3.2:
Front panel of the
Silometer FMX 570 transmitter
Keys Function
Matrix selection
•Press V to select the vertical position.
•Press H to select the horizontal position
•Press simultaneously to select the measured value field, V0H0
Parameter entry
•Select the digit to be changed.
The digit at the extreme left is selected and flashes.
•Move to the next digit by pressing »⇒« again. When the last digit
is reached »⇒« selects the leftmost digit again.
•To change the position of the
decimal point
, press down both
»⇒« and »+«. The decimal point moves 1 space to the right.
•Increases the value of the flashing digit
•Decreases the value of the flashing digit
•To enter a
negative number
decrease the leftmost digit until a
minus sign appears in front of it
•Press »E« to register entry.
•Unregistered entries remain ineffective and the instrument will
operate with the old value.
+
+
Table 3.1:
Silometer FMX 570
Parameter entry and display keys
Chapter 3: Controls Silometer FMX 570
16

4 Calibration and Operation
This chapter is concerned with the basic settings of the Silometer FMX 570 which allow
it to operate for continuous level measurement. The principle sections describe:
•Commissioning
•Calibration for level measurement
•Calibration for linear volume or weight measurement
•Dry calibration for Deltapilot probes
•Level offset
•Display of measured values
•Locking the parameter matrix.
The linearization for volume or weight measurements is described in Chapter 5, the
setting of the analogue outputs in Chapter 6 and the controls in Chapter 3.
Note your settings!When configuring, note your parameters in the Table in the rear cover.
•If the transmitter is ever replaced, these parameters can be entered at the
front panel. The transmitter will then measure correctly without the need for
another calibration.
4.1 Commissioning
If programming the module for the first time, reset the module to the factory based
parameters, see Table in back cover. Then enter the probe constants fo and S (∆f). This
ensures that the EC 37 Z/EC 47 Z electronic insert or Deltapilot can be replaced without
the need for recalibration, see Section 7.3.
Step Matrix Entry Significance
1 V9H5 e.g. 672 Enter any number 670…679 to reset transmitter
2 - »E« Register change
3 V3H5 e.g. 475.3 Enter zero frequency fo(offset) of electronic insert or sensor
4 - »E« Register change
5 V3H6 e.g. 0.652 Enter sensitivity, S or ∆f, of electronic insert or sensor
6 - »E« Register change
Operating modeThe operating mode is set at V8H0. Since the default value corresponds to level
measurement, this step can be omitted if the transmitter has been reset.
For a recalibration without reset check that mode 1, is on display:
•1 = continuous level measurement, Sections 4.2, 4.3, 4.4.
•6 = simulation, see Chapter 7, Section 7.2.
Step Matrix Entry Significance
1 V8H0 e.g. 1 Mode 1, continuous level measurement
2 - »E« Register entry
Chapter 4: Calibration and Operation Silometer FMX 570
17

4.2 Calibration for level measurement
This calibration requires the determination of two parameters,
•an »empty« level at V0H1,
•a »full« level at V0H2.
After calibration If the level is entered in %, after the calibration:
•% level is displayed at V0H0
•the 0/4…20 mA signal range corresponds to 0…100% level
•the parameters »offset« and »sensitivity« are calculated and stored at
V3H1/V3H2.
If the level is entered in m, ft. etc. the analogue outputs must be set in the same units,
see Chapter 6.
Procedure Step Matrix Entry Significance
1 V0H1 e.g. 10% Fill the vessel until the probe is covered (ca. 0…40%) and
enter the level you wish to have displayed.
2 - »E« Register entry
3 V0H2 e.g. 95% Fill the vessel as far as possible (ca. 60…100%) and
enter the level you wish to have displayed.
4 - »E« Register entry
5 V0H0 The measured value is shown in the units selected.
Note!
•The calibration can be performed in reverse order
•For bulk solids, the probe measures the depth of emersion in the product only.
Account for any filling mound or outflow depression by the entered levels.
•For the Deltapilot S (liquids only), a »dry calibration« can be made see Section 4.4.
•If appropriate, a linearization can now be carried out, see Chapter 5.
»Full« V0H2
e.g. 95% or 5 m
BA119Y27
Capacitance probe
Capacitance probe
»Empty«, V0H1
e.g. 10% or 0.5 m
Fig. 4.1:
Parameters required for
calibration of the Silometer
FMX 570 for level measurement
shown for bulk solid
measurement.
Any filling mound or outflow
depression can be accounted for
by the parameters entered.
Silometer FMX 570 Chapter 4: Calibration and Operation
18