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USERS MANUAL / GEBRUIKERSHANDLEIDING
BETRIEBSANLEITUNG / MANUEL D’UTILISATION
MANUAL DE UTILIZACION / INSTRUZIONI PER L’USO
SunWatch 25
Solar monitoring device
Copyright © 2009 Mastervolt, v 1.3 November 2009
MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: +31-20-342 21 00
Fax: +31-20-697 10 06
www.mastervolt.com
ENGLISH: PAGE 1
NEDERLANDS: PAGINA 9
DEUTSCH SEITE 17
FRANÇAIS PAGINA 25
CASTELLANO: PÁGINA 33
ITALIANO PAGINA 41
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USER’S MANUAL SUNWATCH 25 ENGLISH
Copyright © 2009 Mastervolt. All rights reserved.
Reproduction, transfer, distribution or storage of
part or all of the contents in this document in any
form without the prior written permission of
Mastervolt is prohibited.
PRODUCT DESCRIPTION AND APPLICATION
The SunWatch 25 visualizes the electrical energy
yield of a solar energy system. The SunWatch 25
consists of a measuring unit and a wireless display.
The display shows the total energy that is delivered
by the solar system in kWh, the avoided
greenhouse gas emission in kg CO
2
and the actual
power in Watts.
SAFETY INSTRUCTIONS
CAUTION!
Before using the SunWatch 25, read the
Safety Instructions
• Use the SunWatch 25 according to the
instructions and specifications stated in this
manual.
• Connections and safety features must be
executed according to the locally applicable
regulations.
• Operation of the SunWatch 25 without proper
grounding may lead to hazardous situations!
• Never open the measuring unit housing when it
is in operation as high voltages may be present
inside!
GUARANTEE TERMS
Mastervolt guarantees that this product was built
according to the legally applicable standards and
stipulations. If you fail to act in accordance with the
regulations, instructions and stipulations in this
user’s manual, damage will occur and/ or the
product will not fulfil the specifications. This may
mean that the guarantee will become null and void.
The guarantee is limited to the costs of repair and/
or replacement of the product by Mastervolt only.
Costs for installation labour or shipping of the
defective parts are not covered by this guarantee.
For making an appeal on warranty you can directly
contact your supplier, mentioning your complaint,
application, date of purchase and part number /
serial number. The standard guarantee period for
this product is 2 years.
LIABILITY
Mastervolt cannot be held liable for:
• Possible errors in this manual and their
consequences.
• Use of this product that is inconsistent with its
purpose.
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ENGLISH USER’S MANUAL SUNWATCH 25
WIRELESS COMMUNICATION
The SunWatch features wireless communication,
see figure 1. The measuring device (2) sends all
values to the display (1).
Figure 1: Wireless communication
Communication
At regular intervals, the display transmits to the
measuring unit a request for measured values. The
measuring unit receives the requests and transmits
its measures. The lamp at the bottom of the
measuring unit then toggles.
A so called license free frequency band is used for
the data communication. This implies other devices
may be using the same frequency. If two devices
use the same band at the same time,
communication is disturbed. This does not damage
the devices. If the connection is jammed for some
time, the display will show lines instead of the
measured values. The display will recover as soon
as the band is free again.
Connection quality
The quality of the connection depends on local
circumstances. If the link between display and
measuring unit is very weak, you will notice the
measured values will disappear from the display
irregularly. If this happens often, repositioning the
measuring unit or the display may help. If after
some time a good link seems to weaken, a new
wireless device may have been installed in the
vicinity or the batteries may have weakened. Weak
batteries result in a weak communication. If in
doubt about the batteries, replace them to see if
this improves the situation.
Broadcasting address
The display and measuring unit both have a
communication address. The display broadcasts its
address when requesting the measuring unit for
data. The measuring unit will normally only respond
to the address it is set to.
Data storage
Measured values are stored in the measuring unit,
not in the display. This means that information is
not lost when the batteries of the display are
changed or the display is off for some other reason.
The measuring unit also retains the measured
totals when the power is off.
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USER’S MANUAL SUNWATCH 25 ENGLISH
UNPACKING
The delivery consists of the following parts:
• SunWatch 25 display
• Measuring device for the SunWatch 25
• Four screws, wall plugs and caps.
• This user’s manual
After unpacking, check the SunWatch 25 for
possible damage. Do not use the SunWatch 25 if it
is damaged. If in doubt, contact your supplier.
INSTALLATION
WARNING!
Read the instructions before installing the
measuring unit.
This equipment must be installed by
qualified technicians!
• Risk of electric shock! Disconnect the mains and
switch off the inverter before you connect the
wires.
• Make sure that nobody can accidentally switch
on the grid or the inverter while you are working.
• Install the SunWatch 25 measuring device in a
well-ventilated room protected against rain,
vapour, moisture and dust.
• Hang the measuring device to the wall in a
vertical position. DIN rail mounting is possible.
A label inside the measuring unit shows
where the grid and where the PV inverter
must be connected.
• Connect the cables, placing the measuring unit
between the solar energy system inverter (input)
and the mains (output).
• See figure 2 point 3. Install batteries in the
display (2 alkaline ‘penlight’, AA-size cells). The
battery holder shows how the batteries must be
placed.
• Fix the display to the wall, using the two screws
supplied.
Before closing the measuring unit check
the switch setting to avoid having to open
the unit again.
WARNING!
When opening the unit after it has been in
use, be aware that the shunt, figure 2 point
14, may be very hot.
The LED inside the measuring unit (figure 2 ref 5)
blinks when the display and the measuring unit are
communicating. If it is either on or off all the time,
the DIP switch settings may be wrong. Refer to the
section DIP switches for more information.
Figure 2: Installation
1. SunWatch measuring device
2. DIP switch for both measuring
device and display. See
section DIP switches
3. Display back side, battery
compartment
4. Display back side, hanging
slots
5. Communication LED
6. PV power LED
7. Grid AC Line 230V (output)
8. Grid Protective Earth (output)
9. Grid AC Neutral (output)
10. AC cable grommet (2x)
11. PV AC Neutral (input)
12. PV Protective Earth (input)
13. PV AC Line 230V (input)
14. Shunt
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ENGLISH USER’S MANUAL SUNWATCH 25
OPERATION
Switch the solar system on. After a while (about 30
seconds) the display will show the measured
values.
Display functions
Select the desired display function by pressing the
button (1) on the front of the display unit. If you
press the button, the display (2) shows four lines
first. These lines point at the quantity (3) that will
be shown next on the display:
• kWh
• kg CO
2
• Watt.
Figure 3 shows the kWh display function. Every
time you press and release the button, the next
display function is selected.
Another display option is to show the measured
kWh, kg CO
2
and Watts in a fixed sequence. This
mode is indicated with lines at all three levels.
During normal operation, the lines are shown every
10 seconds to leave no misunderstanding about
the quantity displayed.
If the lines for kg CO
2
blink and after that the lines
for kWh and Watt, the display has lost contact with
the measuring device. It shows the measurements
as soon as contact has been regained.
Watt, kWh explanation
If your PV system generates approximately 250
Watts, you will notice that the kWh value has
increased by one after four hours. This is because
250 Watt x 4 hours = 1000 Wh = 1kWh.
In winter there is very little solar radiation, and the
kWh counter will increase very slowly.
Kg CO
2
explanation
Because your PV system generates electrical
energy, less energy production is required in the
power plant. A power plant produces approximately
0,566 kg CO
2
per kWh. So every kWh generated
by your PV system precludes emission of 0,566 kg
CO
2
in the air! This is the so called avoided
emission.
Figure 3:
Operation
kWh
kg CO
2
Watt
32
1
Sunwatch 25
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USER’S MANUAL SUNWATCH 25 ENGLISH
DIP SWITCHES
If the link is weak (the measured values do not
show for several minutes frequently), change the
DIP switch settings to try another communication
address.
If you use several SunWatch 25’s near to each
other, you must make sure that all system
addresses are different. The display and measuring
unit DIP switches show what address is set. See
the table.
CAUTION!
The setting of the measuring unit and
accompanying display must be the same.
WARNING!
Disconnect the measuring unit before
making changes to the switches!
1 2 3 4 5 6 At Display: At Measuring unit:
off off off off
on
off Display address 0 Respond to display with address 0
on
off off off
on
off Display address 1 Respond to display with address 1
off
on
off off
on
off Display address 2 Respond to display with address 2
on on
off off
on
off Display address 3 Respond to display with address 3
off off
on
off
on
off Display address 4 Respond to display with address 4
on
off
on
off
on
off Display address 5 Respond to display with address 5
off
on on
off
on
off Display address 6 Respond to display with address 6
on on on
off
on
off Display address 7 Respond to display with address 7
off off off
on on
off Display address 8 Respond to display with address 8
on
off off
on on
off Display address 9 Respond to display with address 9
off
on
off
on on
off Display address 10 Respond to display with address 10
on on
off
on on
off Display address 11 Respond to display with address 11
off off
on on on
off Display address 12 Respond to display with address 12
on
off
on on on
off Display address 13 Respond to display with address 13
off
on on on on
off Display address 14 Respond to display with address 14
on on on on on
off Display address 15 Respond to display with address 15
off off off off
on on
Display address 16 Respond to display with address 16
on
off off off
on on
Display address 17 Respond to display with address 17
off
on
off off
on on
Display address 18 Respond to display with address 18
on on
off off
on on
Display address 19 Respond to display with address 19
off off
on
off
on on
Display address 20 Respond to display with address 20
on
off
on
off
on on
Display address 21 Respond to display with address 21
off
on on
off
on on
Display address 22 Respond to display with address 22
on on on
off
on on
Display address 23 Respond to display with address 23
off off off
on on on
Display address 24 Respond to display with address 24
on
off off
on on on
Display address 25 Respond to display with address 25
off
on
off
on on on
Display address 26 Respond to display with address 26
on on
off
on on on
Display address 27 Respond to display with address 27
off off
on on on on
Display address 28 Respond to display with address 28
on
off
on on on on
Display address 29 Respond to display with address 29
off
on on on on on
Display address 30 Respond to display with address 30
on on on on on on
Display self test. All
display segments are
switched on/off
regularly.
Reset totals to zero when powered.
ATTENTION! The measuring unit must stay
powered for at least 15 minutes before the new
totals are stored. Then the totals are reset to zero
and they cannot not be recovered.
Use a pen to operate the
6 DIP switches. Slide the
white notch in the desired
direction.
ON DIP
123456
=on
=off
Figure 4: DIP switches.
Example shown:
Dis
play
address 1
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ENGLISH USER’S MANUAL SUNWATCH 25
Technical specifications.
Model SunWatch 25 Display SunWatch 25 Measuring Unit
Article number 130500580 130500580
Display
Display type 4 characters LCD, 12mm high Watt display max. 9999 W. Resolution 1 W. kWh display max. 9999.999 kWh
The first four digits are shown.
-
CO2 display max. 9999.999 kg
The first four digits are shown.
-
Measuring unit
Max. current - 25 A
The measuring unit is not fused. The
power output must be fused, 25 A max.
Mains voltage - 230 VAC +/- 10%, 50 Hz.
Power consumption - < 2 W
Measuring range - 0 … 5750 W
Accuracy - 2% +/- 8 W
General
Dimensions Width 80 mm
Height 128 mm
Depth 43 mm
Width 110 mm
Length 110 mm
Height 65 mm
Weight Approx. 260 gr. incl. batteries Approx. 280 gr.
Ambient conditions Storage –20 … 60 °C
For indoor use only! 5 … 40 °C, RH
80% max. at 31 °C, altitude 2000 m
max.
For indoor use only! 5 … 40 °C, RH 80%
max. at 31 °C, altitude 2000 m max.
Transmitter/receiver
Max. power < 10mW < 10mW
Duty cycle < 50ms / 10 sec. (error free link)
< 50ms / sec. (jammed link)
< 50ms / 10 sec. (error free link)
< 50ms / sec. (jammed link)
Frequency 433.92 MHz (channel 1)
434.33 MHz (channel 2)
433.92 MHz (channel 1)
434.33 MHz (channel 2)
Frequency deviation +/- 15 kHz max. +/- 15 kHz max.
Modulation FSK FSK
Range Approx. 50 metres , depending on the
local circumstances, see manual
Approx. 50 metres, depending on the local
circumstances, see manual
Addresses 2 channels with 30 addresses each 2 channels with 30 addresses each
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USER’S MANUAL SUNWATCH 25 ENGLISH
EC DECLARATION OF CONFORMITY
In accordance with the EC guidelines as listed below, we declare:
Supplier: Mastervolt
Address: Snijdersbergweg 93, 1105 AN Amsterdam , The Netherlands
that the product: SunWatch 25
to which this declaration applies, is in conformity with the following guidelines:
LOW VOLTAGE 73/23/EEC
EN60335-:1994+ Safety of household and similar electrical appliances
EN60335-A1:1996+ Part 1: General requirements
EN60335-A11:1995+ EN60335-A12:1996+ EN60335-A13:1998+ EN60335-A14:1998
EN60335-:1991+ EN60335-:1994, modified
EMC GUIDELINE 89/336/EEC
Immunity EN-62000-6-2
Emission EN-50081/1
Amsterdam,
P.F. Kenninck,
General Manager MASTERVOLT
©2009 Mastervolt BV, Snijdersbergweg 93, 1105 AN Amsterdam, Netherlands
Tel: + 31-20-3422100 Fax: + 31-20-6971006 Email: info@mastervolt.com
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