Myenergi Harvi User manual

is a clever little device that enables the and products to be installed without using a wired
current transformer (CT) for measuring the grid and or generation power - instead the CT is connected to
. No power source is needed for - the energy from the CT is harvested and used to transmit the
measurement signal to the or . This means batteries or electrical wiring are eliminated
1. Installation
• Can be wall mounted
• Up to 3 CT's can be connected
• Multiple harvi devices can be used on one site
• Batteries or power supply not required!
1. The CT should be clipped around the cable to be
monitored – make sure the arrow on the bottom of
the CT is pointing in the direction of normal current
ow. (normally towards the consumer unit).
2. There is a cable grip installed on the back of the
. Simply push the CT wire through the top hole
and then push down to lock into place.
3. Connect 1, 2 or 3 CT's to the CT input(s), the red wire
should be connected to the (+) terminal and the
black wire to the (-) terminal of the device.
4. Allow up to two minutes for the status
LED to start ashing green
2. Pairing with or
1. Press the pair button briey.
2. The LED will ash blue a number of times to indicate
the channel number. Channel doesn’t usually need
to be changed but see “changing channel” box
adjacent if it does.
3. Then the LED will ash red to indicate the is in
pairing mode.
4. On the or unit, select “settings>
advanced>0000>linked devices>pairing mode”
5. The should appear on the screen within a few
seconds.
6. Check the serial number on the screen matches the
number on the front of the device and press
‘✓’ or ‘+’ to add the device
Note: If pairing the to a network of already
paired devices, the harvi should only be paired
with the Master.
Changing channel
(optional)
The default channel is no.1 and normally this will not
need to be changed, however, there may be a situation
where there is some other device causing interference
on a particular channel.
To change channel:
1. Press and hold the pair button until the LED
ashes blue, the LED will ash rapidly to
indicate the channel number from 1 to 8.
2. Release the button when the chosen
channel is shown.
3. Make sure the or unit is also set to
the same channel. (settings>advanced>0000>
linked devices>channel)
Note: Early versions of or only
have 4 selectable channels.
Pair buon Status LED
12345678
harvi-65A3P Serial number

CT Inputs: 3 inputs enable 3-phase or mul-point power
measurement
Measurement Range: 25W to 15kW (50Hz AC, import and export)
Energy Harvesng Range: 0.2A to 65A (including reacve current)
Accuracy: 2.0% typical
Transmission Rate: 1s @ 1A+, <10s @ 0.5-1A, <30s @ <0.5A
Wireless Interface: 868 MHz (proprietary protocol)
Mounng Locaon: Indoor only (can be housed in an IP rated plasc box
if required)
Operang Temperature: -30°C to +50°C
Dimensions: 98 x 98 x 36
3. Conguration
After pairing the the or device will need to be congured to use the
The function of the CT's connected to the are also congured via the or
unit.
1. On the or device, go to the “Advanced Settings” menu and then
“CT Inputs” or “CT Cong”
2. Disable the relevant CT input(s) for that device – this ensures the unit uses the
CT instead of the wired CT.
3. Next go to the “Linked Devices/Devices” menu option which is also in the
“Advanced Settings” menu.
4. Highlight the device and press ‘✓’ or ‘+’
5. Congure the CT's according to the installation. Refer to manuals.
6. If to be used on a 3 phase installation then ensure you set to “three
phase”. This will automatically set all 3 CT inputs to the same input source e.g.
grid, generation etc
Note: Please ensure you refer to our GOLDEN CT RULES, which can be found in
manuals when connecng the CT’s.
If you experience any issues during or after installation, please
contact our technical support team in the rst instance.
[email protected]
0333 300 1303
Monday-Thursday: 9am-5pm
Friday: 9.30am-5pm
Product code: harvi-65A3P
V3.0 Feb 2020
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