ETA Systems FC01-LQ User Manual

Circuit Protection & Control

Flow Meter FC01-LQ

User handbook

M_FC01_LQ_0408_eM_FC01_LQ_0408_e

Please follow these installation and adjustment instructions carefully. Failure to comply with
these instructions or misuse of this equipment will void your warranty coverage.

The instructions cover software version 1.00.

Equipment installation, connection and adjustment by qualified personnel only!

Table of content

1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Calorimetric monitoring procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 System description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2.1 User interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Selection of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Stainless steel 1.4571 / AISI 316 Ti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Nickel-based alloy (Hastelloy 2.4610) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Installation of the monitoring heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2.1 Insertion head CSP-11 for sensor adapter TP-.. and ball valve BV-.. . . . . . . 7

2.2.1.1 Sensor adapter TP-.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1.2 Mounting instructions for monitoring head CSP-.. with

sensor adapter TP-.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1.3 Ball valve BV-.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.2 Monitoring head CSF-11 with adjustable immersion depth . . . . . . . . . . . . . 10

2.2.2.1 Mounting instructions for monitoring head CSF-11 . . . . . . . . . . . 11

2.2.3 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.3 Installation of electronic control unit FC01-LQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.3.1 Mechanical installation

2.3.1.1 Rail-mounted version FC01-LQ-U1... . . . . . . . . . . . . . . . . . . . . . . 14

2.3.1.2 Surface mounted version FC01-LQ-FH-U1... . . . . . . . . . . . . . . . . 15

2.3.1.3 Front panel mounted version FC01-LQ-ST-U1... . . . . . . . . . . . . . 16

2.3.2 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.2.1 Circuit diagram FC01-LQ 24 V (relay outputs) . . . . . . . . . . . . . . . 20

2.3.2.2 Circuit diagram FC01-LQ 24 V (transistor outputs) . . . . . . . . . . . 21

2.3.2.3 Electrical connection - frequency output

(version FC01-LQ-U1T4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3 Operating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Keypads MODE, UP and DOWN

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Menu paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Calling a menu option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Entry of numerals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Transfer of entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Deleting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

M

▲

▼

4 Operation and main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.1 Switch-on performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.2 Measuring cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.2.1 Operating data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.2.1.1 Measured value(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.2.1.2 Peak values (PEAK VALUE MIN / PEAK VALUE MAX.) . . . . . . . . . 28

4.2.1.3 Last error (LAST ERROR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.2.1.4 Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5 Configuration (CONFIGURATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.1 Selection of monitoring head (SENSOR SELECT) . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2 Monitoring head data (SENSOR CODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.3 Limit switch combination (LIMIT SWITCHES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.4 Flow rate unit (FLOW UNIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.5 Medium temperature unit (TEMP. UNIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.6 Display (DISPLAY SELECT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.7 Bar graph (BARGRAPH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.8 Pipe diameter (PIPE SIZE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.9 Frequency output and totalizer (FREQUENCY OUTPUT) . . . . . . . . . . . . . . . . . . . . . 34

5.10 Analogue output - flow rate (ANA OUT FLOW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.11 Analogue output - medium temperature (ANA OUT TEMP.) . . . . . . . . . . . . . . . . . . . 35

5.12 Quitting the configuration menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.13 Configuration menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.14 Configuration submenus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6 Parameter selection (PARAMETERS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.1 Measuring time (MEAS. TIME) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.2 Limit switch 1 ON/OFF value (LS1 ON, LS1 OFF) . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.3 Limit switch 2 ON/OFF value (LS2 ON, LS2 OFF) . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.4 Scaling factor (FLOWSCALE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.5 Quitting the parameter menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6.6 Parameter selection menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7 Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

7.1 Test and diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.1.1 Priority group I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.1.2 Priority group II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.1.3 Priority group III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.2 Potential errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.1 Ambient conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.2.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.2.1.1 DC voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.3 Analogue outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8.3.1 Voltage output V1 - 5 V FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.3.2 Voltage output V2 - 10 V FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.3.3 Current output C1 - 20 mA FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.4 Signal outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.4.1 Relay outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.4.2 Transistor outputs (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

8.5 Metrological data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8.5.1 Flow rate measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8.5.1.1 Monitoring head CSP-11 - with sensor adapter type TP-.. . . . . . 53

8.5.1.2 Monitoring head CSF-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8.5.2 Temperature measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

8.5.3 Electronic control unit FC01-LQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

8.6 Sensor interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.6.1 Electrical data of the terminal for calorimetric monitoring heads . . . . . . . . . 56

9 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Index

Appendix

1 Performance of the digital and analogue outputs during the operating and error modes
2 Menu structure of the FC01-LQ (operator dialogue)

1 Description

The Flow Meter FC01-LQ is designed to detect flow speed, flow volume and medium temperature
of water (other liquids upon request).

These quantities are made available to the user as analogue electrical signals, physically isolated,
as current or voltage output and may be monitored by means of a limit monitor.

As relay outputs or transistor outputs the digital signals enable the user to integrate the FC01-LQ
into a control and monitoring system.

The transistor outputs enable the user to additionally process fault, status and volume pulse
indications in the control system.

The Flow Meter FC01-LQ may be used with calorimetric monitoring heads type CSx

(CSP, CSF).

1.1 Calorimetric monitoring procedure

The calorimetric measuring procedure is based on the physics of heat dissipation.
A body with a temperature higher than its surroundings supplies a medium flowing past that

body with energy in the form of heat. The amount energy supplied is a function of temperature
difference ∆ϑ and mass flow.

The thermal measuring method CTD (Constant-Temperature-Difference) is based on following
principle:

The temperature difference ∆ϑ between the two sensors is kept constant and the mass flow is
determined by measuring the calorific power.

Fig. 1 is a schematic diagram of a CTD method based sensor.
Two temperature-sensitive resistors (sensor elements RS and RM) are immersed in the medium.

Sensor RM assumes the temperature of the medium ϑ

M

whilst heater resistor RH heats element

RS to temperature ϑ

S

. As a function of the medium, the temperature differential ∆ϑ = ϑS- ϑMis
preselected as a reference variable by the CTD control and is kept constant. The r equir ed heater
current I

H

is a function of mass flow so that the control variable y of the control can be used for

evaluation.
Major benefits of this method are:

● Fast response, particularly to sudden flow standstill.

● Medium temperature measurement, providing optimum temperature compensation.

● Increased safety because the sensor cannot be overheated during flow standstill.

The flow rate is determined by mass flow.

fig. 1

control loop

RM

RS
RH

K

p

ϑ

S

K

p

K

p

m: mass flow
w: reference variable ( )
x : actual value (S-M)

−

+

ϑ

M

Δ

ϑ

ϑ

m

-x xd

w

xd: system deviation
y : control variable

ϑ

IH: heater current

medium

Kp,T

I

n

y

y

H

U

I

1.2 System description

The system comprises the following hardware functional modules:
1 Input voltage DC supply (terminal XV)
2 User interfaces: 2.1 signal outputs 2-way or 4-way signal outputs (terminal XAH)

2.2 analogue outputs 1 and 2 (terminal XAO)

3 Keyboard and display: keypads

liquid crystal display
4 Sensor interfaces: calorimetric monitoring had type CSx_ (terminal XSK)
5 Micro controller system: signal processing and monitoring

fig. 2

Power supply DC/DC

Sensor­interface
calorimetric
monitoring
head CSx_

4

1

Micro controller

system

5

Keyboard and Display

3

2.1

User
interface 1

User
interface 2

2.2

1 Input voltage:

2.1 User interface 1

2.2 User interface 2

3 Keyboard/Display:

4 Sensor interface

5 Controller system:

DC 19 … 32 V

relay outputs: 2 limit values
transistor outputs: 2 limit values +

analogue outputs
current or voltage

keypads
LC display
2 x 16 digits

calorimetric monitoring head type CSx_

signal processing
I/O - controlling
monitoring
parameter memory

1 error indication +
1 busy signal or
frequency output
(software selected)

The power supply is physically isolated between power supply input and system power
supply output. This also applies to the analogue and signal outputs which are physically
isolated from each other as well as from the other electronics.

There is no electrical isolation between monitoring head and central electronic unit.
Connection of the monitoring heads is by means of precut cable links.
Cables and user interface connections are shown in para. 2.3.2 and circuit diagram 2.3.2.1/ 2.3.2.2.
System configuration and parameter setting are by means of the keyboard if default values

need to be changed. (paras. 5 and 6)
This mainly applies to monitoring head selection, signal outputs (switch point setting) and

analogue outputs (zero point setting and scaling).

1.2.1 User interfaces

Signal outputs: 1. R2 - Relays outputs (2 limit values)

(optional) Two-channel physical isolation, relay change over contact

The channels may be assigned in menu “CONFIGURATION”, either
individually or in pairs, to the physical quantities of temperature or
flow. The switch on and off values can be set as desired in menu
“PARAMETERS” (yet within the measuring range) for each contact.

Please see para. 8.4.1 for electrical connection.

2. T4 - Transistor outputs (2 setpoints + 2 status outputs or 2 setpoints +
1 status output + frequency output)

Four-channel physical isolation, transistor output - collector/emitter
(NPN) freely connectable

Channel 1: common error signal
Channel 2: busy signal or frequency output
Channels 3 and 4: Both channels may be assigned individually or in

pairs to the physical quantities of temperature or flow. The switch on
or off values of each transistor output can be set as desired.

Please see para. 8.4.2 for electrical connection.

Analogue outputs: Two-channel physical isolation, current or voltage output
(optional) Please see the ordering number to find out whether it is a current or

voltage output.
Output quantities: 0/1 - 5 V FS (option V1)

0/2 - 10 V FS (option V2)
0/4 - 20 mA FS (option C1)

These FS (full scale) output quantities apply to both channels (flow and
temperature) as standard.

20% zero elevation and FS value can be programmed. (See para. 5.11)
Shield connections are ungrounded.

The shields of the signal cables should be applied on one side only.

Power supply: DC 24 V supply

Internal switch mode power supply with physical isolation of the
primary and secondary side.

Noise emission on the connection cable is limited by circuit design
and filter.

A PTC resistor provides protection from overcurrent. The element
automatically resets upon removal of the disturbance or after
disconnection of the supply voltage of the FC01-LQ for approx. 1 s
(e.g. remove terminal XV).

Please see para. 8.2.1 for technical characteristics.

2 Installation

These are general directions for the application of calorimetric measuring heads which from
application to application should be reviewed by the user in accordance with individual
requirements.

2.1 Selection of material

Stainless steel 1.4571 / AISI 316 Ti

The standard monitoring head material is stainless steel 1.4571/AISI 316 Ti, an austenitic, acid­resisting stainless steel that is commonly used throughout industry. Manufacturers claim it also
withstands oxidizing organic and anorganic acids, and partly even reductive media.

The resistance of this stainless steel should however be verified by the user, particularly when it
is used in medium mixtures that may from time to time be exchanged with cleansing agents. Its
chemical resistance also depends on temperature, flow rate and concentration of the medium.

Stainless steels owe their resistance to rust mainly to their alloy combination with chromium, the
formation of chromic oxide on the steel surface resulting in a passive state. Contamination,
deposits on the surface, or foreign rust may however neutralize the passivity. Therefore care
should be taken to keep the surfaces clean.

Stainless steel heads must not get in contact with steel parts other than stainless steel or with
chemically dissimilar metals, as this would cause electrolytic corrosion.

Nickel-based alloy (Hastelloy 2.4610)

Hastelloy 2.6410 is a material with a chemical resistance generally exceeding that of stainless
steel and copper-based alloys. They are particularly suitable for alkaline media (pH > 7). They
should however be examined for suitability for each specific application using resistance tables
and pragmatical values.

2.2 Installation of the monitoring heads

2.2.1 Insertion head CSP for sensor adapter TP-.. and ball valve BV-..

Application: general industry and installation
Style: insertion-type for sensor adapter and ball valve
Installation: sensor adapter TP-.. (fig. 4)

ball valve BV-.. (fig. 5)

Material of the area

exposed to medium: stainless steel 1.4571/AISI 316 Ti, electropolished

O ring viton

fig. 3

ø24

retention slot

8

14

ø18

18.2

64

ø20

O ring

O ring

sensor adapter TP-…

union nut

retention pin

monitoring head CSP-11..

2.2.1.1 Sensoradapter TP-..

The sensor adapter TP-.. is available in 6 pipe diameters from 1/2" to 2".
Sensor adapter is available as screw-in (fig. 4 top) or welding type (fig. 4 bottom).

Material of the area exposed to medium:

- brass or

- stainless steel 1.4571/AISI 316 Ti

fig. 4

2.2.1.2 Mounting instructions (monitoring head CSP-.. with sensor adapter TP-.. )

Caution!

The monitoring head should only be installed or removed when the pipes are unpressurised.

To ensure the safety label is clearly visible, it should be affixed on to or close to the measuring point.

● Insert the monitoring head with the O ring into the sensor adapter and tighten the union
nut (observe correct retention).

The retention pin ensures correct alignment of the monitoring head after the union nut has
been tightened.

Correct immersion depth of the monitoring head is ensured by the stop provided.
Sealing of the monitoring head in the sensor adapter is by means of the O ring provided (fig. 3).

● Screw the sensor adapter into the pipe, using hemp or teflon tape for sealing.

retention pin

SW

Ty pe

DN

TP-01 …
TP-02 …

G

t

L

ødød

t

TP-03 …
TP-04 …
TP-05 …
TP-06 …

15
20
25
32
40
50

G

1/2"

16

3/4"

20

1"

25

11 /4"

32

11/2"

40

2"

50

SW

tød

L

27

50

11

32

64

12

40

78

14

50

94

15

55

110

15

70

138

19

SW

Ty pe

TP-01M1-SA
TP-02M1-SA

øD

t

L

t

TP-03M1-SA
TP-04M1-SA
TP-05M1-SA
TP-06M1-SA

DN

15

16

21.3

20

20

26.9

25

25

33.7

32

32

42.4

40

40

48.3

50

50

60.3

SW

tød

LøD

27

50

15

32

70

15

40

80

15

50

100

15

55

110

15

70

140

15

Ball valve BV-…

The ball valve of Postberg GmbH at D-63485 Bruchköbel is available in 4 nominal diameters
from 1" to 2". The ball valve ensures the sensors are fully immersed in the medium.

The monitoring head may also be replaced in pressurised pipe systems on duty.

Note:

❑ Please see the applicable drawing of Postberg GmbH for mounting instructions and

dimensions, if necessary.

fig. 5

A

H

G

ød

SW

L

BV-03M3
BV-04M3
BV-05M3
BV-06M3

Type

t

G

L

SW

1"
11/4"
11/2"
2"

tød

21
24
24
28

100
110
131

H

A

41

88

59

115

50

65

115

54

77

150

70

85

150

DN

25

25

32

32

40

40

50

50

2.2.2 Monitoring head CSF-11 with adjustable immersion depth

Application: pipelines with nominal pipe diameters > DN50
Medium: liquids
Style: smooth shank, 18 mm dia., immersion depth adjustable within

the PG16 cable gland (accessory) or mounting in the stainless steel
cutting ring gland

Material of the area exposed to medium:

- M1 sensor and shank stainless steel 1.4571 /AISI 316 Ti (sensor)

- M7 sensor stainless steel 1.4571 /AISI 316 Ti, shank aluminium
Accessories:

- cable gland PG16 nickel-plated brass (see fig. 7)

- threaded installation bush stainless steel 316 (cutting ring) (see fig. 7)

fig. 6

ø22

SW20

Typ e

CSF-…L43… 190
CSF-…L30… 300
CSF-…L40… 400

14

L

L

ø18

monitoring head should be aligned
in direction of flow (see arrow)

14

16x0.75
M

ound connector

r

2.2.2.1 Mounting instructions for monitoring head CSF-11

Caution!

The two sensors (M) should be screwed into the pipeline far enough to ensure that they
are aligned side by side directly across the direction of flow. The sensors are correctly
positioned when the wrench flats (S) are aligned parallel with the pipeline.

The shoulder of the sensor (7 mm from the tip) must be at the position 1/8 from dia. i.

● In the case of vertical pipelines the monitoring head should be installed where the flow is
rising, if possible.

● For horizontal pipelines the monitoring head should be mounted on the underside of the
line (suspended).

V

fig. 7

ertical pipeline

PG16
(nickel-plated brass)

S

1/8 from dia.i

dia. i (internal pipe diameter)

M

7

M

monitoring head should be aligned
in direction of flow (see arrow)

1/8 from dia.i

threaded installation brush
(stainless steel-cutting ring)

S

Horizontal pipeline

M

M

● The monitoring head should be installed only in a straight section of piping. There should be
a distance of at least 20 pipe diameters before the monitoring head, and 5 pipe diameters
after the monitoring head before or after bends and changes in pipe diameter, to avoid any
effects of turbulence.

fig. 8

● When installing the monitoring head, please observe that the arrow corresponds to the
flow direction.

● Fit monitoring head with locking set as follows (fig. 9):

- Fix first link of chain (1) into the clip (3) (tightening torque 10 Nm).

- Put chain catch (2) into link and fasten with the tight chain.

Caution!

Check locking system with regard to strength!

The locking chain must be mounted as tightly as possible.

5 x D20 x D

D

D = nominal pipe diameter

5 x D20 x D

D

D = nominal pipe diameter

Locking set 01

2.2.3 Electrical connection2.2.3 Electrical connection

fig. 10

1 chain 4 x 32 DIN 5685 (approx. 1 m)
2 catch for chain NG 5
3 clip with screws and nuts DN15 to DIN 11850

(tightening torque 10 Nm)

Cable Do + Ka type xx

(depends on FC01-LQ version and sensor-type used - see figs. 15 and 16)

321

2

1

6

5

10

9

3

4

7/8

XSK
FC01-LQ

green

yellow

red

blue

pink

grey

brown

white

black
shield

cable
Kabel-Union
LifYCY 4 x 2 x 0,2 mm
or equivalent cable

green 7 7

yellow

3

red 4 4

pink

88

grey

1

5
6

brown

white

2

blue

round plug

2

X221 368 01

R(HEIZ)

3

R(Tdiff)

1

R(HEIZ)

5

6

2

R(Tref)

flange plug
X221 369 01
monitoring head

2.3 Installation of electronic control unit FC01-LQ

2.3.1 Mechanical installation

2.3.1.1 Rail-mounted version FC01-LQ-U1...

● The electronic housing is mounted on a symmetric rail to EN 50022.

● For thermal reasons, the modules should be spaced by at least 10 mm.

● Removal is by releasing the spring catch.

fig. 11

FC01-LQ

Flow Controller

100

spring catch

M

75

56

60

2.3.1.2 Surface mounted version FC01-LQ-FH-U1...

● Remove the cover of the housing.

● Install the housing in place using the 4 self-taping screws M4 (see fig. 12).

● Replace the cover and tighten the retaining screws.

fig. 12

140

103

M16

71

125

ø4.5

mounting holes

FC01-LQ-FH

Flow Controller

M16

M

140

ø5 to ø8