PHYWE Cobra SMARTsense User manual

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www.phywe.com, © All rights reserved 12923-00 / 2521
Operating
instructions
Cobra SMARTsense Drop counter
12923-00
PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10
D–37079 Göttingen
Telefon [phone]
Fax [phone]
E-mail [email protected]
Internet www.phywe.com
The unit complies
with the applicable
EC-guidelines
Fig. 1: 12923-00 Cobra SMARTsense Drop counter
TABLE OF CONTENTS
1SAFETY PRECAUTIONS
2PURPOSE AND CHARACTERISTICS
3FUNCTIONAL AND OPERATING ELEMENTS
4NOTES ON OPERATION
5 HANDLING
6TECHNICAL DATA
7SCOPE OF DELIVERY
8ACCESSORIES
9 CONFORMITY
10 DISPOSAL
1 SAFETY PRECAUTIONS
Carefully read these operating instructions completely
before operating this instrument. This is necessary to
avoid damage to it, as well as for user-safety.
Only use the instrument for the purpose for which it was
designed.
Only use the instrument in dry rooms in which there is no
risk of explosion.
Protect the instrument from dust, moisture and vapours.
Use a slightly moist lint-free cloth to clean the instrument.
Do not use aggressive cleaning agents or solvents.
Take care that no liquid penetrates in through the hous-
ing openings, as such penetration would result in dam-
age to Sensor.
Do not open the unit.
2 PURPOSE AND CHARACTERISTICS
The sensor is used for counting drops, for measuring the pH
value and for transferring the values to a terminal device, e.g.
a tablet computer, smartphone, etc., via Bluetooth or USB.
Caution!

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3 FUNCTIONAL AND OPERATING ELEMENTS
Fig. 2: Functional and operating elements
3.1 Operating elements
The sensor has an on button and four LEDs for indicating the
status.
On-button
To switch the sensor on and off in Bluetooth mode, the power
button must be pressed for longer than 3s. If the sensor is to
be connected via USB, it is not necessary to press the power
button.
Bluetooth-LED
Flashing red every 2 seconds
Not connected
Flashing green every 2 seconds
Connected to the ter-
minal device
Flashing green every 4 seconds
Running measurement
Battery charge LED
Flashing red every 2 seconds
Low battery
Illuminated red
Active charging process
Illuminated red
Charging process
completed
Work-Indicator-LED
Illuminated green
Working process
Flashing yellow
Turning on/off
Drop-Indicator-LED
This LED flashes blue per drop.
3.2 USB port
The battery, which is permanently installed in the sensor, is
charged via the type C USB port. Furthermore, communica-
tion with a computer takes place via this interface.
3.3 pH sensor interface
A pH electrode (e.g. Phywe ref. no. 18450-00) can be con-
nected to the BNC connector.
4 NOTES ON OPERATION
This device fulfils all of the technical requirements that are
compiled in current EC guidelines. The characteristics of this
product qualify it for the CE mark.
The individual connecting leads are each not to be longer
than 2 m.
The instrument can be so influenced by electrostatic charges
and other electromagnetic phenomena (HF, bursts, indirect
lightning discharges) that it no longer works within the given
specifications. Carry out the following measures to reduce or
eliminate the effect of such disturbance: Ensure potential
equalization at the PC (especially with Laptops). Use screen-
ing. Do not operate high frequency emitters (e.g. radio
equipment or mobile radiotelephones) in the immediate vicini-
ty. When a total failure of the instrument occurs, unplug it and
plug it back in again for a reset.
5 HANDLING
This section describes the start-up of the sensor and the re-
cording of measurement data. Please read this section thor-
oughly in order to avoid failures or operating errors.
5.1 Charging process
Use a USB-C cable to connect the sensor to a computer or
USB charger (not included).
During the charging process, the battery charge LED lights
up red. When the charging process is complete, the battery
charge LED lights up green. The charging time for a com-
pletely discharged battery is 3 hours maximum.
Disconnect the charger at the latest four hours
after the completion of the charging process. Oth-
erwise, the service life of the battery may be neg-
atively affected.
5.2 Start-up
Switch on the sensor by pressing the power button for more
than 3s. Now the Bluetooth LED flashes red. Start the soft-
ware and select the sensor.
If the sensor is to be used via the USB interface, it does not
need to be switched on. The sensor is connected directly to
the end device using the supplied USB cable.
There is a 9-digit code
on the back of the sen-
sor (Fig.3). The last 4
digits of the code are
displayed as the sensor
name in the software
(Fig.4). This enables the
precise assignment of
the sensors within the
software.
Fig. 3
Fig. 4
Sensor fastening
holes
Drop counter
pH sensor port
USB port
ON button

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Selection of the sensor via the Bluetooth interface
Make sure that the Bluetooth interface is activated on the
terminal device (PC/Tablet/Smartphone) and that the soft-
ware is allowed to access the interface.
After the sensor has been selected in the software, the LED
flashes green to indicate that the connection has been estab-
lished correctly. After the sensor has been coupled with the
software, the sensor is no longer visible to other users in the
software, and therefore can no longer be selected.
If the sensor is switched on and not connected, it switches off
automatically after 5 minutes.
Selection of the sensor via the USB interface
For this purpose the sensor must be plugged into the USB
port of the end device. It is not necessary to switch on the
sensor. The sensor is automatically recognized and dis-
played. It can be selected and connected directly.
5.3 Recording of measurement data
Measuring principle:
The infrared light receiver of the sensor, which is located in a
recess for protection against the ambient light, can only be
reached by a very narrow beam of light. As a result, a very
small drop is sufficient for shading the receiver.
Measurement:
Align the drop counter so that the drop falls perpendicularly
through the drop counter opening (see Fig. 2).
Start the measurement in the App.
6 TECHNICAL DATA
Operating temperature range: 5 - 40°C
Rel. humidity < 80%
Drop counter
Measuring range
Max. drop rate
pH
Measuring range
Resolution
Accuracy
0… ∞Imp
30 Imp/s
pH 0… 14
0.01 pH
±0.2 pH
Max. date rate
Battery capacity
Max. wireless range (open field)
50 Hz
1000 mAh
30 m
Dimensions (length x width x height)
121x 75 x 25 mm
Weight
142 g
7 SCOPE OF DELIVERY
The extent of delivery is as follows
Cobra SMARTsense Dropcounter 12923-00
USB connecting cable type C 07935-00
Operating instructions
8 ACCESSORIES
The following accessories are available:
Cobra SMARTlink 12999-99
USB-charger 07934-99
pH-Elektrode 12920-10
Rod M6 x 100 mm 02010-10
Boss head 02043-00
USB-Bluetooth-Adapter 07936-00
Software measureLAB 14580-61
Free measureApp available from supplier portals
iOS
Android
Windows
9 CONFORMITY
10 DISPOSAL
The packaging mainly consists of environmentally-friendly
materials that should be returned to the local recycling sta-
tions.
PHYWE Systeme GmbH & Co. KG
Abteilung Kundendienst
Robert-Bosch-Breite 10
D–37079 Göttingen
Telefon [phone]
Fax [phone]
Do not dispose of this product with normal
household waste. If this unit needs to be
disposed of, please return it to the address
that is stated below for proper disposal
PHYWE Systeme GmbH & Co.KG hereby
declares that the radio system type 12923-
00 complies with the 2014/53/EU directive.
The complete text of the EC Declaration of
Conformity is available at the following In-
ternet address:
www.phywe.com/en/ec-declaration