Labkotec LOKASET R User manual

LOKASET R
Installation and
Operation Instructions
D18067Ae
WIRELESS TANK FULL ALARM

LOKASET R | Installation and Operation Instructions | D18067Ae2

3LOKASET R | Installation and Operation Instructions | D18067Ae
Contents
1. Introduction 4
2. Operation 5
3. Installation 6
4. Operating Mode 8
5. Service and Repairs 9
6. Alarms 10
7. Technical Specications 11

LOKASET R | Installation and Operation Instructions | D18067Ae4
1. Lokaset R – Introduction
Lokaset R is designed for use as a high level alarm in liquid tanks.
It can be used for instance to indicate that a closed septic tank
is full. Lokaset R is equipped with visual and acoustic alarm
indicators as well as an alarm relay.
The Lokaset R device consists of a central unit (1), transmitter
(2) and a probe (3). The central unit is used for controlling and
monitoring device operation. The enclosed transmitter transmits
the alarm signal wirelessly from the probe to the central unit.
Lokaset R can be installed in new and existing tanks without
excavation works.
Similarly to many Labkotec products, also Lokaset R can be
connected to the versatile and easy-to-use LabkoNet system
enabling automated tank emptying.
Keep these Operating Instructions near the central unit.
To view these Operating Instructions in electronic form,
please visit www.labkotec..
Thank you for choosing reliable Labkotec technology.
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2. Lokaset R – Operation
Lokaset R is designed for use as a tank full alarm for septic tanks.
The principle of operation is that when the probe comes into contact
with liquid, the transmitter transmits a signal to the Lokaset R central
unit. The signal is sent every 10 minutes and the alarm is activated by
two consecutive notes from the probe. The relay will de-energize in
case of an alarm.
The central unit (1) signals the alarm with a buzzer sound and an
alarm indicator light (2). The buzzer is silenced by the alarm reset
button (3). The alarm mode can be deactivated by emptying the
tank. The probe should be installed in the tank at the height of the
liquid alarm level.
The central unit is plugged to the mains (230 V). When the power is
connected, the green power light (4) and the radio signal indicator
(5) are on. The transmitter is battery-powered. The battery is supplied
with the device. In normal use, the battery life is at least 10 years. The
central unit signals an alarm when the transmitter is not powered or
the battery needs to be replaced.
The Lokaset R probe (SET/LV) is not suitable for measuring explosive
or corrosive liquids.

LOKASET R | Installation and Operation Instructions | D18067Ae6
Figure 1.
3. Lokaset R – Installation
The Lokaset R central unit (Figure 1) is installed in a dry indoor
location. A good installation location enables easy reading and
control of the device. Do not cover the central unit as this may
interfere with signal reception from the transmitter. The Lokaset
R central unit is mounted on a wall with screws through the
holes at the bottom of the device. The lid of the housing must
be opened for installation. The device is plugged to the 230 V
mains via the power cord.
Operation of the probe and the transmitter should be tested
during installation in order to ensure that the radio signal can
travel freely. Activate the transmitter test mode (see Service
instructions, p. 9). Immerse the measuring head momentarily in
water. If the central unit is operational, the blue light (SIGNAL)
should turn o every 8 seconds and the alarm should be
signalled within 8 seconds.
Installation of the Lokaset R transmitter is illustrated on the
adjacent page. The transmitter is installed on the cover (1) of
the tank’s outlet pipe using the provided plate screws (2);
4 pcs, 2.9–3 x 25 mm.
Place the rubber gasket (3) between the transmitter and the cover.
The cover of the transmitter must be opened for installation. Make a
lead-through for the cable (4) or for the entire probe in the cover of
the outlet pipe.

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Connect the probe cable conductors to the screw terminals
(5) on the transmitter circuit board. The polarity of the cable
connection has no signicance to device operation. Tighten the
probe cable gland (6). Install a cable tie above the cable gland
as a cable clamp. Place the supplied battery CR123A in the
battery compartment (7) with the positive pole (+) facing
upward. Correct installation of the probe cable and battery
is illustrated on page 9.
Ensure that the tightening O-ring (8), Ø 69.5 x 3.0 mm NBR70,
is seated properly in the groove. Close the protective cover (9)
with the supplied stainless steel screws (10); 2 pcs, 3 x 16 mm.
Note! Proper seating of the O-ring and tightness of the cable
gland are important in ensuring the tightness of the transmitter
enclosure. If the cover cannot be properly secured, ensure
that the O-ring is installed correctly.
The Lokaset R transmitter is supplied with a 3 metre cable.
The height of the probe may be adjusted using the provided
cable tie. Make a loop in the probe cable. Secure the loop with
the cable tie (11). This facilitates height adjustment of the probe.
Do not leave the probe in the tank during vacuum disposal. Do
not secure the probe cable to tank walls.
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▼▼▼
On
Flashes
O
Reset the buzzer > Arrange disposal
Check probe connection
Check transmitter operation
Pair devices > p. 10
Connect the device to the mains
Normal operation mode
Alarm > Buzzer signal > Tank full
Malfunction > Probe failure
Malfunction > Communication failure
Central unit cannot recognise transmitter
No power
1. GREEN 2. BLUE 3. RED
4. Lokaset R – Operating Mode
The Lokaset R central unit has three indicator lights and one
button. The green light (POWER) is the power indicator, the
blue light (SIGNAL) the wireless transmission indicator and
the red light (ALARM) the alarm indicator. The button is used
for resetting the buzzer alarm.
The Lokaset R transmitter transmits a signal to the central unit
every 10 minutes. The central unit interprets whether the probe
is in the air (normal mode), in water or damaged (alarm mode).
When the unit signals a tank full alarm, the red light is on. If there
is a malfunction, the red light ashes. In case of an alarm or fault,
the relay is de-energized (closing poles 1 and 2).

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5. Lokaset R – Maintenance and Repairs
The best way to maintain proper operation of the Lokaset R
device is to ensure that the probe is clean and that the radio
communication between the transmitter and the central unit
is unobstructed. All barriers, such as leaves, debris, snow, ice or
vehicles may interfere with the reception of the radio signal. If
the battery ceases to discharge power, the central unit will signal
an alarm. The easiest way to clean the Lokaset R probe is during
tank emptying. The probe may be cleaned using running water.
Operation of the Lokaset R device can be checked in conjunc-
tion with maintenance by activating the transmitter test mode.
Activate the test mode by pushing the function button (1) on
the transmitter. When the test mode is activated, the blue indi-
cator (SIGNAL) of the central unit ashes every 8 seconds during
test transmission. The device returns to the normal operating
mode after running the test mode for 5 minutes.
The Lokaset R central unit does not include serviceable parts.
In the event of damage, please contact the supplier. The power
cord of the central unit may only be replaced by the device
manufacturer or an authorised service organization.

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The Lokaset R central unit and transmitter form a device pair.
Any subsequent spare part deliveries require re-pairing.
Pair the devices by simultaneously pressing the alarm reset
button and powering the central unit. All lights on the central
unit will ash, indicating that the devices are being paired.
Press the function button (p. 9) on the Lokaset R transmitter.
The green light (POWER) and red light (ALARM) are on and
the blue light (SIGNAL) ashes. Complete the process by
pressing the central unit reset button again. The blue light
(SIGNAL) remains on and ashes every 8 seconds to indicate
the test mode. The Lokaset R central unit and transmitter
are now paired. The device returns to the normal operating
mode after 5 minutes.
6. Lokaset R – Alarms
Tank full alarm:
Red light (1) is on (continuous buzzer sound)
a) Reset the alarm (2)
b) Arrange tank disposal

11LOKASET R | Installation and Operation Instructions | D18067Ae
7. Lokaset R – Technical Specications
Central Unit
Type/model
Manufacturer
Supply voltage
Operation method
Relay output
Dimensions: hxwxd
Installation and
operation class
Operation
Approvals
Lokaset R Receiver
Labkotec Oy, Myllyhaantie 6,
33960 Pirkkala, Finland
230 VAC, 50/60 Hz, 1 VA
Wireless receiver, 433 MHz
De-energised on alarm, potential-free
switching contacts (μ). Max. connection
values: 250 V / 4 A / 100 VA
35 x 130 x 80 mm
Class II, Indoor use only
Green, blue and red indicator light, buzzer
R&TTE approval,
CE Marking
Transmitter
Type/model
Manufacturer
Supply voltage
Operation method
Dimensions: h x Ø
Operating radius
Installation and
operation class
Protection class
Approvals
Lokaset R Transmitter
Labkotec Oy, Myllyhaantie 6,
33960 Pirkkala, Finland
3 V battery, CR 123A
Wireless transmitter, 433 MHz
75 x 95 mm
150 m, max. transmission range 650 m
Class III, indoor and outdoor use,
ambient temperature -30 … +60°C
IP 67
R&TTE approval,
CE Marking
Probe
Type/model
Operation method
SET/LV
Conductivity-operated

Labkotec Oy
Myllyhaantie 6
33960 Pirkkala, Finland
Tel. [phone] (exchange)
Fax [phone]
info@labkotec.
www.labkotec.
We reserve the right to changes.
© 2009 Labkotec Oy