MMG TQI-021/1 User manual

U S E R M A N U A L
T Q I –0 2 1 / 1
Flow meter signal processing unit
August 2010.

MMG TQI-021/1
2
Contents
1. DESIGNATION, FIELD OF APPLICATION.......................................................................................3
2. SPECIFICATION................................................................................................................................3
2.1. Inputs (Figure4.)...........................................................................................................................3
2.2. Outputs (Figure 4.).......................................................................................................................3
2.3. Displays........................................................................................................................................4
2.4. Type selection..............................................................................................................................4
2.5. Accessories shipped with the equipment.....................................................................................4
2.6. Ambient factors affecting the operation of the device..................................................................4
2.6.1. Reference conditions...............................................................................................................4
2.6.2. Operating conditions................................................................................................................5
2.7. Informative data ...........................................................................................................................5
2.8. Error of the measured values.......................................................................................................5
3. TECHNICAL DESCRIPTION .............................................................................................................5
3.1. Display unit...................................................................................................................................5
3.2. Operating the pushbuttons (Figure 1.).........................................................................................6
3.3. Displays and programming the device.........................................................................................6
3.3.1. Definition of data in data group Measure.................................................................................6
3.3.2. Definition of data in data group Program.................................................................................6
3.4. Batch control ................................................................................................................................7
4. MECHANICAL CONSTRUCTION .....................................................................................................8
5. SETUP................................................................................................................................................8
5.1. Unpacking the device...................................................................................................................8
5.2. Installing the device......................................................................................................................8
6. MAINTENANCE .................................................................................................................................8
7. REPAIR ..............................................................................................................................................8
8. DATA STORED IN THE MEMORY OF THE DEVICE.......................................................................9
APPENDIX-1: USING THE SERIAL LINE COMMUNICATION.................................................................16
1. Settings of the serial line............................................................................................................16
2. C-FLOW character protocol (C-ASC) ........................................................................................16
3. C-FLOW communication protocol (C-BIN).................................................................................16
4. Structure of the command sent to the device ............................................................................17
5. Structure of the answer message given by the device ..............................................................17
List of Figures
Figure 1 Keypad, display....................................................................................................................12
Figure 2. Functions of the display .....................................................................................................12
Figure 3. Mechanical dimensions, panel cutout...............................................................................13
Figure 4. Block diagram, I/O connections.........................................................................................13
Figure 5. Rear panel arrangements....................................................................................................14
Figure 6. Connecting turbine meter sensor ......................................................................................15
Figure 7. Setting of input selector (on rear panel) ...........................................................................15

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1. DESIGNATION, FIELD OF APPLICATION
TQI-021/1 can be connected to any flowmeter having pulse output. This pulse output can be directly
an inductive transducer of a turbine meter, or a pulse output with higher signal level from a
preamplifier.
TQI-021/1 has been built from up-to-date circuits that ensure high reliability. The instrument can be
mounted in instrument rooms or field racks ensuring similar ambient conditions. In case the connected
flowmeter is operated in explosive area, it must be connected to the input through proper insulating
unit (Zener-barrier).
The TQI-021/1 calculates the flowrate of the flowing fluid based on the signals of the pulse signals of
the flowmeter, and summarizes the volume flowing through during the time of measurement. These
values are displayed digitally in technical units. The instrument even in power-off state keeps the
measured values and the programmed constants necessary for the calculations.
The TQI-021/1 signal processing unit is equipped with batch controlling function, pulse output for
remote counter, and current output for control and recording, furthermore limit contacts for control or
alarm.
2. SPECIFICATION
2.1. Inputs (Figure4.)
INP 1 Low-level pulse input (turbine transducer coil):
Inductive transducer (connected by Figures 6/A and 6/C )
Input signal level: 10 mVrms … 3 Vrms
Input frequency range: 0- 1500 Hz
INP 2 High-level pulse input:
Optocoupler LED: max. 30 mA
NAMUR (two-wire current-pulse) input
LA6 preamplifier (connected by 6/B and 6/D Figures):
Current in "0" state of pulse: max. 4mA
Current in "1" state of pulse: min. 7mA, max. 20mA
Input frequency range: 0-1500 Hz
INP 3 Batch control remote start input
Type of input make contact at start of batch
Input current max. 20 mA
Voltage at the input max. 5VDC
2.2. Outputs (Figure 4.)
OUT 1 Remote counter operating output
Type of output: 24VDC control pulse.
Load: 100 mA
Duration of pulse: presettable (dT)
Volume unit per pulse: presettable (Vo)
OUT 2 Batch control output
Type of output: make contact during batching
Load: max.12W, max.42VDC, max.1A

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OUT 3 Alarm for power failure or exceeding flow limits:
Type of output: brake contact at signaling
Switchable power: max.12W, max.42VDC, max.1A
The contact is normally closed. In case the actual flow is less, than the preset low limit
(QL), or the actual flow is higher, than the preset high limit (QH), the contact brakes.
OUT 4 Programmable current output proportional to flowrate
Current range: 0…20 mA (Io…Im)
Flowrate rang: the measuring range (QIo, QIm)
Load: 0…500 
2.3. Displays
The display of the signal processing unit is displaying the following measured and calculated values:
Integrated volume (not resettable),
Integrated volume (resettable),
In case of batch control the batch volume and volume left,
Flowrate (numeric and analogue bar-graph display),
More information of other programming data and displays see paragraph 3.
2.4. Type selection
The TQI-021/1 signal processing unit is manufactured in two versions according to powering.
3 4 1 7 - 0 - 3 0 0 - A
Power
0
115…230 VAC
1
24 VDC
2.5. Accessories shipped with the equipment
1 pc. Manual
1 pc. Quality Certificate
1 pc. Set of accessories for panel mounting
2.6. Ambient factors affecting the operation of the device
2.6.1. Reference conditions
- Ambient temperature: 20 °C 2 °C
- Line voltage: 230Vrms 2% (optionally 24VDC 2%)
- Line frequency: 50 Hz 1%
- Relative humidity: 1075 % at 20 °C
- Magnetic field: not allowed
- Mechanical shock: not allowed
- Pressure: normal atmospheric pressure (86-106 kPa)

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2.6.2. Operating conditions
- Ambient temperature: +5 .. +40 °C
- Line voltage: 100…264 VAC (optionally 24VDC3 V)
- Line frequency: 50 Hz 2%
- Relative humidity: 5-80 % without condensation
- Magnetic field: max. 400 A/m
- Mechanical shock: frequency: 10-55 Hz, amplitude: max. 0.15 mm
2.7. Informative data
- Power consumption: about 10 VA
- Fuse: 500mA-T
- Protection: IP 20
Outline dimensions:
- Panel cutout dimensions: 138x68 mm
- Outline dimension of cover: 144 x 72 x 209 mm
- Construction: Nz-1 (MSZ 8881/3-70) normal indoor.
- Mass: 0,8 kg
Storage temperature range: -25 +70 °C
Relative humidity: 5 80 % (without condensation)
2.8. Error of the measured values
-Calculation error of flowrate: 0,02 %
-Volume integrating error: 0,02 %
-Error of output current: 0,25 %
3. TECHNICAL DESCRIPTION
The block diagram of TQI-021/1 can be seen on Figure 4.:
3.1. Display unit
The construction of the display of TQI-021/1 can be seen on Figure 2. The display functionally consists
of three parts:
Data display:
Displays data set, measured or calculated by the device. The displayed data can consist of max. 8
digits, 10,5 mm high, including decimal point, too.
Information display:
The three by four character display on the left side of the display gives the following information:
Upper row: DESIGNATION of the displayed data.
Middle row. TECHNICAL UNIT of the displayed data.
Lower row: first character: BATCH: during batch control flashing Dappears.
second character: ALARM: at flowrate less than the low limit of flowrate a
flashing Lappears, at folwrate higher than the high limit of
flowrate a flashing Happears.
third character: Empty
fourth character: DATA GROUP: signaling the kind of displayed data.
M–measured or calculated data
P–programmable data
Analogue display:
The lowest row of the display is an analogue display which shows a 3,5 mm thick line the length of
which is proportional to the actual flowrate (Q). The full length of the line corresponds to the maximal
flowrate of the flowmeter (Qm). The analogue display shows the lines signing the low and high limits

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(QL, QH) too, in the place proportional to their values. In case of limit error these marker lines are
flashing.
3.2. Operating the pushbuttons (Figure 1.)
The four pushbuttons below the display serves for controlling the display, the batching and entering
data:
▲By the arrow the displayed data can be selected.
ENT Pushbutton for initializing data change (rewriting) and for acknowledging the changed
value. It is effective only in data group P(see details in chapter 3.1.)
DPushbutton for batch control. (see details in chapter 0.)
ESC Escape ("NOT VALID") pushbutton.
Right from the display a standard numeric keypad can be found for entering the constants for the
device. In this group the CL (Clear) pushbutton can be found, which serves for clearing the mistaken
entered digit, and for clearing the resettable counter (chapter 3.3.1. V'). The pushbutton 0has
double function. At data entry it serves for entering number 0, at normal case it serves for selecting
DATA GROUP (M/P) (details in chapter 3.3.).
3.3. Displays and programming the device
The displayable data are sorted in two groups. The first group contains the Measured data displayed
during normal operation; the other contains the Programmed data of the device and the attached
flowmeter. At power-on the DATA GROUP is always M.
Only the data in group Pcan be rewritten. The way of it is the following:
Switch the data group to Pusing the pushbutton M/P.
Select the data to be changed by the pushbutton ▲.
Press pushbutton ENT . This time the contrast of the data display becomes inverted signing that
data-entering keypad is active.
Enter new value. During entering the mistaken number can be cleared by pushbutton CL or we
can leave enter mode with pushbutton ESC to the state that was before pressing pushbutton ENT.
The entered data is acknowledged and stored by pressing pushbutton ENT again.
3.3.1. Definition of data in data group Measure
V Not resettable ("all time") volume counter, showing total volume flown through since the factory
setup.
V' Resettable volume counter, that shows volume flown through since the last reset. By pressing
pushbutton CL this data becomes displayed and is changed to inverse, signing the state ready
for reset. By pressing CL again the counter is reset.
NOTE! The value before reset cannot be called back by pressing ESC.
D’ During batch control the volume left from the batch.
Q Actual value of flowrate.
q Actual relative value of flowrate (q = Q/Qm*100%).
3.3.2. Definition of data in data group Program
DSet value of batch.
Io Minimal value of output current.
Im Maximal value of output current.
QIo Flowrate corresponding to minimal output current.
QIm Flowrate corresponding to maximal output current.
K Calibration factor of the flowmeter.

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Qm Nominal maximal flowrate for the flowmeter.
QH High alarm limit for the flowrate.
QL Low alarm limit for the flowrate.
Vo Volume corresponding to one pulse of the remote counter.
dT Pulse width of the remote counter output.
E Identifier (serial number) of the device.
S Identifier (serial number) of the flowmeter connected to the device.
CNo Electronic „seal” that is the check number of the measuring system. The program of TQI-021/1
generates this number automatically; there is no other way of setting it. In case any of the data
in data group P is changed even temporarily, the check number will change. As there is no other
way for changing the check number, registering and checking the value of this number can
sense the unauthorized manipulation.
fIn Selector code for input signal.
1the device receives high level pulse signal on the terminals 6(+) and 7(-), or a 6(+) and 8(-)
(see Fig. 4)
0the device receives low level pulse signal of pick-off coil on the terminals 4 and 5, or the
NAMUR current pulses on the terminals 8(+) and 9(-) (see Fig. 4)
ISk Output current full scale. Attention! The changing of it by the user is not recommended.
I00 Output current zero correction. Attention! The changing of it by the user is not recommended.
ABd Data of the serial line communication
Form of the displayed number: AAA.BBBB
Where:
AAA digits of Address: BBBB digits of Baud-rate:
000…250 0600 600 bit/s
1200 1200 bit/s
2400 2400 bit/s
4800 4800 bit/s
9600 9600 bit/s
1920 19200 bit/s
3.4. Batch control
Setting the batch
At pressing pushbutton Dat once the value of batch (D)appears at the display in inverse contrast
signaling that the keys of the numeric keypad became active, enabling the entering of the new value of
batch. After entering the new value of batch it is acknowledged by pressing pushbutton ENT. By
pressing ENT the batching is not started, only the new value for batching is entered in memory D.
Start batching by the pushbutton on front panel
After entering the new batch value (or leaving the old value unchanged) by pressing pushbutton D
repeatedly batching starts at once, the BATCHING information character gives a flashing Dsignal, the
display is changed to displaying the batch volume left (D’).
Suspending or stop batching by front panel pushbuttons
Batching automatically stops if the volume left (D’)reaches zero.
In case You press pushbutton Dduring batching started from the front panel the batching is
suspended, the display changes to D’, the value of it is seen this time in inverted contrast, signing that
the batching is only suspended, but is not terminated. The character BATCH keeps giving the flashing
Dsignal. In this stage batching can be continued by pressing pushbutton Dagain, the display of D’
turns to normal contrast. The suspended batching can be terminated by pressing pushbutton ESC.

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Start batching by remote contact
Batching starts at once in case we apply short circuit at the batch input terminals for at least 100 ms
time. After starting batch by remote close contact the pushbutton Dbecomes inactive until the end of
batching.
Suspending or stop batching by remote contact
Batching started by remote contact can be suspended by a new closing of the contact and it can be
restarted by a new closing.
Batching suspended by a remote contact can also be terminated by the pushbutton ESC.
4. MECHANICAL CONSTRUCTION
TQI-021/1 is encapsulated in a standard size plastic enclosure that is to be built in by Figure 3.The
front panel consists of a foil keypad and a graphic LCD display. The rear panel contains the terminals
for connecting input and output cables. The cables must be fixed near their end by cable fixing
assemblies for freeing the terminals of stress.
5. SETUP
5.1. Unpacking the device
The device and its accessories are packed according to the demands of safe transport. Unpacking is
carried out by the usual way, no special measures are needed.
5.2. Installing the device
Before you want to use TQI-021/1 signal processing unit for measurement, the following are
recommended:
-Study the Manual.
-Prepare the necessary cutout on the instrument panel (Figure 3.)
-Install the device to the final position.
-Connect the input and output terminals of the device according to the desired task by
figures 4. and 6.
-Check the settings of the code switches on the rear panel (Figure 7.)
-Connect the power cord of the device.
-Switch the device under power
-Check the programmed data in the memory of the device (chapter 3.3.2.). In Chapter 8.
You find the list of Programmed Data with the factory-preset values. Perform the
necessary changes and record them in the table.
6. MAINTENANCE
The device needs no other maintenance except the performing of checks described in the Manual.
7. REPAIR
In case of malfunction the device can be repaired by the usual and accepted way of repairing
electronic devices, keeping the prescriptions of safety of life and goods. During repair the ambient
conditions fixed in the specification must be agreed.
Attention! After the factory setup of the device the operating software stores the necessary hardware
setup values. These values might change after a part replace during a repair, therefore a new setup
measurement might be necessary. Therefore it is recommended to have the repair made by the
manufacturer.

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8. DATA STORED IN THE MEMORY OF THE DEVICE
No
Name
Value
Unit
Description
Note
0
Err
hl.co..y
General error information:
Small character means the errorless state.
Capital characters signals the error state:
H: Q > QH
L: Q < QL
C: error in the calculation of Q
O: output signal error
Y: damage of memory
S
1
ErO
s...i..p
Output signal error:
S: error in the serial line
I: error in the current output
P: error in the pulse output
S
2
ErC
k.......
K: error in the calculation of Q
S
3
ErY
x.......
X: damage of memory
S
4
Sts
w...ow.b
States of the control signals:
W: display is in the temporary power-on state
O: opto-coupler input is in powered state
W: batch control disabled (during the bounce-time)
B: batch output is in powered state
S
5
V
182.4447
m3
Not resettable volume counter
M
6
V'
182.4557
m3
Resettable volume counter
M
7
D'
0
m3
During batch control the volume left from the batch
P
8
Q
2.98E-02
m3/s
Actual value of flowrate
M-U
9
q
79.52919
%
Actual relative value of flowrate (q = Q/Qm*100%)
M
15
I
16.728
mA
Actual value of output current
S
16
rc0
182.5019
m3
Value of V at the moment of the last output pulse
S
17
OVF
1.00E+07
m3
Turn over value of the volume counter (V)
S
20
D
1
m3
Set value of batch
P
21
Io
4
mA
Minimal value of output current
P
22
Im
20
mA
Maximal value of output current
P
23
QIo
0
m3/s
Flowrate corresponding to minimal output current
P-U
24
QIm
0.0375
m3/s
Flowrate corresponding to maximal output current
P-U
25
K
16000
i/m3
Calibration factor
P
26
Qm
0.0375
m3/s
Nominal maximal flowrate
P-U
27
QH
3.39E-02
m3/s
High alarm limit
P-U
28
QL
0.0075
m3/s
Low alarm limit
P-U
29
Vo
0.1
m3
Volume corresponding to one pulse of the remote counter
P
30
dT
0.025
s
Pulse width of the remote counter
P
31
E
208.2007
Identifier (serial number) of the device
S
32
S
506.2007
Identifier (serial number) of the flowmeter
S
33
CNo
930662
Electronic „seal”
S
34
dTM
0.5
If the time-period of the input pulses > dTM the frequency
will be considered zero
S

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No
Name
Value
Unit
Description
Note
35
fIn
0
Input signal selector:
0…pulse signal from the high level inputs (6,7,8)
1…pulse signal from the low level inputs (4,5)
P
36
fFN
10
Filter-factor in the calculation of the flow rate and the
output current signal
S
37
ISk
25.51064
mA
Output current full scale
P
38
I00
-0.13737
mA
Output current zero correction
P
40
DSM
Refresh
Control of Display:0: {Refresh}...Display-items (41…44)
are read only1: {Test}……..Display-items (41…44) can be
modified
S
41
L11
V --L11
Upper row of Information display (chapter 3.1)
S
42
L12
m3--L12
Middle row of Information display (chapter 3.1)
S
43
L13
M--L13
Lower row of Information display (chapter 3.1)
S
44
L3x
182.84
Data display (chapter 3.1)
S
45
BgV
97
Actual length of the Bar-graph (dots)
S
46
BgL
24
Low limit position in the Bar-graph (dots)
S
47
BgH
110
High limit position in the Bar-graph (dots)
S
48
KBM
Full
Control of the push-buttons:
0:{DIS}….All function of buttons are disabled
1:{Keyb}..Buttons are enabled, 49:KBI is read only
2:{Item}...Buttons are disabled 49:KBI can be modified
3:{Full}….Buttons are enabled, 49:KBI can be modified
S
49
KBI
0000------
State of the buttons
S
50
Pct
0.104875
s
Actual cycle-time of the program
S
51
Adr
1
Address of device (Identification of the communication)
S
52
COM
C-BIN
Communication protocoll
S
53
Bd
1200
bit/s
Speed of serial line communicion:
0:{600} 1:{1200} 2:{2400} 3:{4800} 4:{9600} 5:{19200}
S
54
CtM
1
s
Waiting time for the respons at serial line communication
S
55
CSu
---CF6A---
Check-sum of the program
S
56
RST
NO
Restart of the device:
0:{NO}……….normal state of the item
1:{SoftRST}...reset of program without changing of data
2:{ColdRST}..reset of program with new data
S
57
M0i
5
> V
Item-No of the displayed data after the power-on
S
58
P0i
20
> D
Item-No of the data to be displayed after pressing the
button P/M
S
59
ABd
001.1200
Address and Baud-rate information item (chapter 3.3.2)
P
60
V10
Count
Setting of volume counters:
0:{Count}…basic value of the item
1:{Clear}….zeroing of volume counters
S
61
bMo
NoBatch
Batch control:
0:{NoBatch} 1:{StartB} 2:{BATCH}
S
65
FuT
35.64237
s
Batching time
S
70
I1
46103
pulse
Number of pulses received at the low level input
S
71
fqL
477.2263
Hz
Frequency of the low level pulses
S
72
I2
0
pulse
Number of pulses received at the high level input
S
73
fqH
0
Hz
Frequency of the high level pulses
S
74
fFi
477.2878
Hz
Filtered input frequency
S