MMG
TQI-021/1
5
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
D
appears.
second character:
ALARM: at flowrate less than the low limit of flowrate a
flashing
L
appears, at folwrate higher than the high limit of
flowrate a flashing
H
appears.
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
