SKI MFLOW 100WT Manuale utente

BA-µflowWT-en-L-1401.doc

µFLOW 100WT

compact calculator for

water and steam

Instruction manual

Valid from software version WT-1.9917

content

Explanations of symbols _____________________________________________________ 2

General Hints______________________________________________________________ 2

Qualified Personnel_________________________________________________________ 2

Technical data _____________________________________________________________ 3

Dimensions __________________________________________________________________________ 3

Mechanical mounting __________________________________________________________________ 3

Cleaning_____________________________________________________________________________ 4

General hints for Electrical connection _____________________________________________________ 4

Connection examples for inputs __________________________________________________________ 4

Connection examples for the output _______________________________________________________ 5

The terminals in detail__________________________________________________________________ 6

Choosing the signal for the temperature input (Pt100 or current) _________________________________ 7

Exchange of the fuses __________________________________________________________________ 7

The displays _______________________________________________________________ 8

Menu tree_________________________________________________________________ 9

Short example for changing parameter value _______________________________________________ 11

Access _____________________________________________________________________________ 11

Water alarm –menu point %Wetstm (level C/13)____________________________________________ 11

Sensorbyte –menu point SENSORS (Level C/65) ___________________________________________ 11

k-Factor –Menu point k-factor (level D/7)_________________________________________________ 12

The transfer characteristic ______________________________________________________________ 12

Application of the RS232 Interface____________________________________________ 12

Link and control of the µFLOW with a PC_________________________________________________ 12

Adjusting the Baudrate - menu option BAUD (level D/46) ____________________________________ 12

Adjusting the duration of the transmission cycle_____________________________________________ 12

Parameters__________________________________________________________________________ 12

Protocol ____________________________________________________________________________ 13

Data format _________________________________________________________________________ 13

Trouble shooting __________________________________________________________ 14

Description of the failure_______________________________________________________________ 14

Possible reason ______________________________________________________________________ 14

EC-Declaration of Conformity ______________________ Fehler! Textmarke nicht definiert.

Explanations of symbols

Warning of a danger place (caution: consider documentation)

ISO 3864, No. B.3.1

Warning of gangerous electrical voltage

ISO 3864, No. B.3.6

General Hints

For reasons of clarity this manual does not contain detailed information about all types of products and

cannot take into account every conceivable case of installation, operation or maintenance.

If you require further information or should problems occur which are not sufficiently explained in the

manual, you can consult us directly to obtain the necessary information.

May we also draw your attention to the fact that the contents of the manual are not part of a previous

or existing agreement, approval or legal relationship or an amendment thereof. All obligations of the

S.K.I. GmbH result from the contract of purchase which also contains the full and solely valid warranty

agreement. These contractual warranty conditions are neither extended nor restricted by the contents

of the manual.

Qualified Personnel

are persons familiar with the installation, assembly, commissioning and operation of the product and

who have the appropriate qualifications for their activities such as:

·Training or instruction or authorization to operate and maintain

devices/systems according to the standard of safety technology for electrical

installations.

·Training or instruction in the proper care and use of protective equipment in

accordance with appropriate safety practices.

·Rendering first aid.

attention

During startup no buttom on the front panel must be pressed

CAUTION

This equipment is a Limit Class A once. It can cause radio disturbance in

residential. On this case costumer has to take care appropriate measure.

This equipment should only be installed and operated after qualified personnel

have ensured that suitable power supply (see name plate) will be used and that

during normal operation or in case of a defect in the system or in components no

hazardous situation can occur. Therefore serious injuries and/or considerable

material damage cannot be ruled out in the event of improper handling of the

device.

The perfect and safe operation of this equipment is conditional upon proper

transport, proper storage, installation and assembly as well as on careful operation

and commissioning.

Technical data

indication: LC-Display, 2 lines with 16 signs

nominal voltage: 230 VAC (±10%)

115 VAC (optional)

24 VDC (optional)

frequency range: 50 Hz ±10%

nominal current: 65 mA @230/115V 50Hz

500 mA @24 VDC

nominal power 15 VA @230/115V 50Hz

12 VA @24 VDC

maximum main interference: 150 V/20 ms, followed by automatic RESET by integrated

monitoring module with backup of the count

EMV tests: according to EN 55011/ 55011-A1; EN 61326-1/ 61326-A1 and

EN 50082-1/2

Functonal test: Watchdog, FAIL function with drop-out contact in the event of fault

Available auxiliary power: 24 VDC/160 mA for transmitter supply (with auxiliary power

115/230 VAC only) No transmitter supply is possible with auxiliary

power 24 V DC

analog inputs: 6x 0/4-20 mA switchable via software

2x switchable to Pt100 direct input

measuring range for Pt100: –200°C....+500°C

Internal resistance 24 Ohm per current input, >10 MWf0r Pt100

Analog/Digital converter 14 bit resoluton with integrated 50Hz-suppression; complete

electrical isolation from the computer and all outputs(except in the

case of transmitter supply))

Frequency input: 0,1 up to 10kHz

Analog outputs: 1x 0/4-20 mA, optional 2x 0/4-20 mA

max. load: 500 Ohm

count pulse: max. 1W, max 30 V

resolution of the outputs: 14 bits, completely electrically isolated from the computer and all

inputs

relay outputs: 2x free configurable, 1x Fail-relay

max. load of the contacts: 250VAC/8A

*Caution: Before installation and operation costumer has to check the nominal voltage.

Only the declaration on the type plate is guilty!

Dimensions

enclosure: glass-fibre-reinforced Noryl, front panel 144x72 mm²(DIN)

material: Noryl SE1 GFN2

protection class: IP 20 (enclosure); IP64 (display unit)

depth: ca. 170 mm

panel cut-out: 5.45“x 2.7“(138 x 68 mm²)

5.67“6.41“

Mechanical mounting

The standard µflow is a panel mounting unit. After preparing the panel cut-out, costumer has to mount

the µFlow while using the delivered mounting brackets. Please pay attention to use the delivered seal

between panel and µFlow-housing.

65mm

144mm

72mm

163mm

Cleaning

The µFlow has to be cleaned only with a dry daster.

General hints for Electrical connection

Signal leads must be shielded, one end of the shield has to be connected to mass. Signal

and main leads have to be layed seperately.

For electrical installation following determinations are to be observed:

·power supply wiring has to be designed for nominal current

·power supply has to be installed, so that the power supply of µFlow can be switched off

·switch off power supply before opening the µFlow .

Connection examples for inputs

picture 3:passive current inputs with

temperature in both lines

Picture 4: passive current inputs with

temperature . RTD elements directly

connected to the µFLOW.

µFlow

36 o.

I =

temperature

press

urek

T-

I =

flow

µFlow

press

ure

I = -

Pt100

flow

I = -

36 o.

picture 1: passive current inputs,

the µFlow powers the transmitters picture 2: passive current inputs, with Pt100

direct connection instead of using a

temperature transmitter

I =

temperature

Line 1

temperature

Line 2

I =

T-

I =

T-

flow

press P

I = +

Q+

36 o. 37

µFlow

Line1

RTD

Line 2

I =

press -

I =

flow

µFlow

36 o.

picture 5: measuring of saturated steam with

pressure measurement picture 6:measuring of saturated steam

with temperature measurement

Connection examples for the output

Picture 8: active signals, the transmitters are

HE = auxiliary power

pressure -

I = 31

flow

Q-

I =

µFlow

36 o.

tempera-

ture I =

T-

flow

I =

Q-

36 o.

µFlow

I =

temperatu

press

urek

flow Q

µFlow

34o.35

flow

Q-

µFlow

picture 7:frequency input for the flow signal

Umax= 30 VDC

- + 7

µFlow

picture 9: external counter with voltage input.

The series resistor Rv should be used

in a range of 1 to 10 kW.

picture 10: analog output, outputs are active,

there is no need for an external

power supply.

The max. load is 500 W

-22 (20 - OUT2)

23 (21 - OUT2)

µFlow

The terminals in detail

Long terminal row short terminal row

terminal

name use

terminal

name use

1 L/DC+ Power supply, (24 V DC + optional)

24 B

2 N/DC- Power supply, (24 V DC - optional)

25 A/IN5 Current input T1 or

3 PE mass

26 b

4 RXD Transmit Data

27 B

TXD Receive Data

28 A/IN6 Not used

6 DGND Data Ground

29 b

7 CNT Pulse output NPN Open collector

30 IN4 Not used

8 DGND GND for pulse output

31 IN3 Current input pressure

9 CO

32 IN2 Current input Flow 2

10 NO Relay 1

33 IN1 Current input Flow 1

11 NC

34 GND GND for transmitters

12 CO

35 GND GND for transmitters

13 NO Relay 2

36 24V Auxiliary power for transmitters

14 NC

37 24V Auxiliary power for transmitters

15 CO

16 NO Fail-Relay

17 NC

18 Freq+ Frequency input

19 Freq-

20 OUT2- Analog output 2 (Option)

21 OUT2+

22 OUT1- Analog output 1

23 OUT1+

hint

When selecting a frequency generator, attention must be paid to the correct setting of the Jumpers

located inside the unit behind the FREQ input terminals.. The Jumpers are set to TTL/CMOS inputs at

the works unless otherwise specified in the parameterization log. The following table shows the correct

Jumper settings.

signal type Jumper (gemäß Draufsicht)

1 2 3 4 5 6 7 8

TTL, CMOS, pulse x x 0 0 0 1 1 0 x = don`t care

pulse with log.0 above 1,4V x x 0 0 0 0 1 0 1 = Jumper

pulse with log.0 below 0,2V x x 0 0 1 0 1 0 0 = no Jumper

open Collector NPN x x 1 0 0 0 1 0

open Collector PNP x x 0 0 0 0 1 1

Coil (high impedance) x x 0 1 0 0 0 0

Coil (low impedance) x x 0 1 0 0 0 1

Jumper for frequency inputs

Picture 11:main circuit board with

Jumpers for the

frequency input

picture 12: CPU circuit board with

the DIP-switches for the

temperature inputs

Fuse for

24V supply

Sof

are

RTD1

Temp1

RTD2

Temp2

ON ON

1 2 1 2 Not availablefrom

SN 1001, because

Output is short

circuit approved

Pt100

Main fuse

Trafo

12345678

Choosing the signal for the temperature input (Pt100 or current)

Picture 12 showes the location of the DIP switches for the adjustment of the temperature inputs. The

switches are reachable after dismounting of the back panel

switch 1 2

Pt100 off on

current on off

Exchange of the fuses

The main fuse is located on the main circuit board (see picture 11). The fuse for the 24 V auxiliary

power is located on the CPU circuit bord (see picture 11. The fuses are reachable after dismounting of

the back panel. The type of fuse to be used is depending on the power supply

Power

supply

Main fuse

Fuse for 24V

230V AC 250V/80 mAT 250V/160 mAT

115V AC 250V/80mAT 250V/160 mAT

24V DC 250V/0,5 AT -

The displays

During startup the calculator indicates a message as „prozess: 0“, the meaning of this message is as

follows: Prozess: 1 = saturated steam with temperature measurement (Sattd1)

Prozess: 2 = saturated steam with pressure measurement (Sattd2)

Prozess: 3 = super heated steam

Prozess: 4 = water

The following table show the different displays. By pressing the "ê" key, it is possible to switch

between the displays in descending order of the table. By pressing the "é" key, it is possible to switch

in the opposite direction. After pressing the SELECT key, the TAG-no., which can be programmed by

the user, will be indicated. After pressing the SELECT key again, you get back to the normal display

mode.

Indication of heat and temperature of line 1 and 2

Indication of heat and energy

Indication of mass flow, temperature 1

and pressure

Indication of heat, temperature 1

and pressure

Totalized mass and energy

Flow rate and status of Relay 1 + 2

Totalized flow and energy

Indication of specific density und entalphy in

both lines

These two indications are interchanging

automatically

These two indications only appear, if the access is

set to Laboratory, OEM or Factory eingestellt

Menu tree

attention: For some parts of the menu the access is denied.

Level A B C D Input / indication comments

1 Info Version

WT-1.9917ff Indication of the software version, no

input possible

Ser.No.

SN: XXXX Indication of the serial number, no input

possible

3 Params Flow1 dp dP1.min Input of dP-value for

0/4mA Does not appaer, if a velocity sensor is

chosen

dP1.max Input of dP-value for

20mA

dp2.min Input of dP-value for

0/4mA Attention: if no second dp- transmitter is

connected, the values for dp2.min +

dp2.max must be set to zero

dP2.max Input of dP-value for

20 mA

k-factor Input of value Specification of the k-factor

velocity Puls/V Input of value Does not appaer, if a dp-sensor is

chosen

Vmin

Input of value Zero point in m³/h

Vmax Input of value span in m³/h

Pipe-ID

Input of value Internal pipe diameter

Schleich

Input of value cutoff in %

%Wetstm Input of value

Temp1 T1.min

temperature according to

0/4mA Does not appear for Sat.st2 and for

RTD-Direct-input

T1.max

temperature according to

20mA

Temp2 T2.min

temperature according to

0/4mA Appears only, if "1" is chosen in the

Menu RETRN

T2.max

temperature according to

20mA

press1 p.min

Pressure according to

0/4 mA Only appears for Sat.st2, superheated

steam und water

p.max

Pressure according to

20 mA

Signal Damping Input of value

Timebas

Hours, minuts, seconds, choosing the timebase

UNIT m.form kg, t, lbs Choosing the unit for mass flow in line1

m.backw kg, t, lbs Choosing the unit for mass flow in line 2

åm.forw kg, t, kt Choosiing the unit for total mass in line 1

åm.back kg, t, kt Choosiing the unit for total mass in line 2

åV m³, l Choosing the unit for the totalized flow

t °C, K Unit for temperature

p bar, kPa, hPa, psi Unit for pressure

Q. kW, MW Unit for heat

Q kJ, MJ, kWh, MWh Unit for energy

NKS

0NKS, 1NKS Digits after the decimal point

Outputs Relay1 fnction V.act, m.vorw, m.back,

Q.forw, Q.backw, Q.total,

t.forw, t.backw, p

Function of Relay

Charakt Water, Supply, min, max Characteristic of Relay

value Input of value

Relay2 fnction V.act, m.vorw, m.back,

Q.forw, Q.backw, Q.total,

t.forw, t.backw, p

Function of Relay

Charakt Water, Supply, min, max Characteristic of Relay

value Input of value

Analog1 fnction V.act, m.forw, m.back,

Q.forw, Q.backw, Q.total,

t.forw, t.backw, p

Function of analog output

Charact 4-20, 0-20 Current characteristic

Lo-Val Input of value Value for 0/4 mA

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