O P E R A T I N G I N S T R U C T I O N S | T - E A S I C
®
8023072/1E22/2022-02-23| SICK AG
Subject to change without notice
2 7
7
COMMISSIONING
If the sensor is operated in Velocity (relative or absolute) or Volume (volume flow or
counter) mode, the medium can be selected from three different options (water, oil A,
oil B). The closer the actual medium is to the selected type, the better the performance
of the sensor.
Oil A
and
oil B
have the following specifications:
−
Oil A
: Viscosity 5 cSt at 26 °C
−
Oil B
: Viscosity 49 cSt at 26 °C
If the sensor continuously displays 0% or 100% even though the correct medium has
been selected, then the selected medium does not fit. Please teach in the medium via
the
Teach relative
menu item (see
7.3.2 “Configuring the measurement mode based on
the “Teach relative” mode (example)”
NOTE
The T-Easic
®
FTS is calibrated with water at the reference conditions (inner pipe diame-
ter 25 mm, vertical installation in the pipe, tip in the middle of the pipe, probe oriented
in the pipe as described in section
“5.2 Probe alignment to flow direction”
, completely
filled pipe without air bubbles, velocity between 10 cm/s and 100 cm/s, inlet zone
> 30 cm, outlet zone > 30 cm, 26 °C ± 1 °C, 2 bar ± 1 bar). The media OIL A and OIL
B are taught-in. If you are using different medium, this can result in deviations in the
measurement accuracy.
7.3.1
Configuring the measurement mode based on the volume (volume flow and counter) (example)
1. Use the arrow keys (left/right) to select the
Measurement Mode
menu.
2. Use the arrow keys (up/down) to select the
Volume (flow and counter)
parameter.
3. Use the right arrow key to select the
Medium
parameter.
4. Use the arrow keys (up/down) to select
Water
,
Oil A
or
Oil B
.
5. Use the right arrow key to select
Pipe Diameter
. (The pipe inner diameter only
needs to be entered in Volume measurement mode and is only visible in this
mode. The unit for the diameter can be selected in the advanced menu settings,
.)
6. Increase or decrease the value using the arrow keys (up/down).
7. To output the volume counter, pulse output must be selected in Q2. The pulse
width and pulse valency can be entered here in the “Pulse Width” and “Pulse
Valency” fields.
The volume flow can be output via the switching outputs Q1 and/or Q2 or, depend
-
ing on the electrical version, via the analog output.
7.3.2
Configuring the measurement mode based on the “Teach relative” mode (example)
1. Use the arrow keys (left/right) to select the
Measurement Mode
menu.
2. Use the arrow keys (up/down) to select the
Teach relative (%)
parameter.
3. Use the right arrow key to open the
Teach select
menu.
4. Use the down arrow key to select Teach 1, Teach 2, or Teach 3, depending on
whether you already have taught-in media that you do not want to overwrite.
5.
Start the system and make sure that the maximum flow rate is reached.