Labkotec Lokaset 20 Septic Tank Full Alarm Instruction Manual

: June 13, 2024
: Labkotec

Table of Contents

Labkotec Lokaset 20 Septic Tank Full Alarm
Product Information
Product General
TECHNICAL DATA
GENERAL
OPERATION
INSTALLATION AND ELECTRICAL CONNECTIONS
SERVICE AND REPAIR
OPERATING MODES OF THE DEVICE
EU DECLARATION OF CONFORMITY
Contact
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Labkotec Lokaset 20 Septic Tank Full Alarm

Labkotec-Lokaset-20-Septic-Tank-Full-Alarm-product

Product Information

Product Name: Lokaset 20 Septic tank full alarm
Manufacturer: Labkotec Oy
Address: Myllyhaantie 6, 33960 PIRKKALA, FINLAND
Contact Information:
- Tel: 029 006 260,
- Fax: 029 006 1260,
- E-mail: info@labkotec.fi,
- Website: www.labkotec.fi

Product General

The Lokaset 20 is a conductivity-operated limit switch which consists of a probe and control unit. When the probe comes into contact with a conducting liquid, the control unit will give an alarm. The red indicator light comes on, the buzzer starts to sound, and the alarm relay is de-energized. The buzzer can be silenced by the alarm acknowledge button, but the indicator light will stay on and the relay de-energized until the alarm is removed(i.e., the probe is no longer in contact with liquid). The alarm operations have an approximate delay of 4-5 seconds to eliminate unnecessary alarms caused by splashes.

When using the SET/LV probe, the probe and its cable areprovided with fault detection, indicating any breakage in the probe circuit. The device is powered by the 230 V mains via a connecting lead provided with a plug. When the device is not powered, the alarmrelay is in an alarm state (i.e., de-energized). When power is connected, it is indicated by the green light.

NOTE: The device must not be used for installations in hazardous areas. The SET/LV or SET/L probe must not be installed in a hazardous area. The SET/LV or SET/L probe is not recommended to be installed in a location where steams, gases,or liquids can have a corrosive effect on probe materials, e.g., aromatic and chlorinated hydrocarbons (PVC), strong bases or acids.

TECHNICAL DATA

Lokaset 20 Control Unit

Supply voltage| 230 V ±10%, 50/60 Hz, 2,8 VA
Probe| SET/LV or SET/L
Operating limits within the entire tempera- ture range| Alarm on < approx. 8 kΩ, alarm off > approx. 40 kΩ
Operating indications| Green light: Power on/off Red light: Alarm

Buzzer: Alarm sound

Relay output| De-energised on alarm, potential-free switching contacts (µ). Max. connection values: 250 V / 4 A /100 VA
Operating environment| Temperature: 0°C…+50°C

Max. elevation above sea level 2,000 m Relative humidity RH 100%

Suitable for indoor and outdoor use (protected from direct rain)

Enclosure| Polycarbonate, 130 x 80 x 35 [mm] (w x h x d), IP54
Cable glands| 2 pcs M12 for cable diameter 3-6,5 mm
Weight| Approx. 0,5 kg
EMC

Immunity Emission

| EN IEC 61000-6-2

EN IEC 61000-6-3

EN IEC 61000-3-2

Electrical safety| EN IEC 61010-1, Class II , CAT II, POLLUTION DEGREE 2

SET/LV probe

SET/LV probe

GENERAL

The Lokaset 20 is a conductivity-operated limit switch which con-sists of a probe and control unit. When the probe comes into contact with a conducting liquid the control unit will give an alarm; the red indicator light comes on, the buzzer starts to sound and the alarm relay is de-energised. The buzzer is silenced by the alarm acknowledge button but the indicator light will stay on and the relay de-energised until the alarm is removed, i e the probe is no longer in contact with liquid. The alarm operations are provided with an approx. 4-5 s delay to eliminate unnecessary alarms caused by splashes.

When using the SET/LV probe, the probe and its cable are pro-vided with fault detection, indicating any breakage in the probe circuit.
The device is powered by the 230 V mains via a connecting lead provided with a plug. When the device is not powered the alarm relay is in alarm state, i e de-energised. When power is con-nected it is indicated by the green light.

NOTE: THE DEVICE MUST NOT BE USED FOR INSTALLATIONS IN HAZARDOUS AREAS.

The SET/LV or SET/L probe must not be installed in a hazardous area. The SET/LV or SET/L probe is not recommended to be installed in a location where steams, gases or liquids can have a corrosive effect on probe materials, e.g. aromatic and chlorated hydrocar-bons (PVC), strong bases or acids.

OPERATION

Lokaset 20 is designed to be used as a tank full alarm for septic tanks.

INSTALLATION AND ELECTRICAL CONNECTIONS

WARNING: Ensure that the plug of the device is discon-nected from the socket when the lid of the housing is open.

Installation of the Lokaset 20 control unit

Labkotec-Lokaset-20-Septic-Tank-Full-Alarm-fig-1

The Lokaset 20 is installed in a dry indoor location. A good location is one which is visited sufficiently often so that the tank full alarm data is registered and emptying is made at the right time. The device is fixed on wall with screws through the holes beneath the fixing screws of the lid. The probe cable conductors are connected to poles 1 and 2 on termi-nal block X1 (see Fig. 1), the con-nection order has no significance. If the relay is taken into use, the cov-ering plug on the bottom of the hous-ing is removed and the M16x 1.5 gland seal turned in its place. The potential-free contact data about the tank full alarm is received from ter-minal block X3 to the alarm control or building control system. The relay is provided with switching contacts. On alarm or mains failure the relay will be de-energised, pins 4 and 5 being opened and pins 3 and 4 closed. The device is plugged to the 230 V mains by connecting its mains lead to the socket.

Labkotec-Lokaset-20-Septic-Tank-Full-Alarm-fig-2

The Lokaset 20 control unit is intended for use with the SET/LV probe (gray cable) which is provided with cable detection facility. If the control unit is to be used with the SET/L probe (blue cable) without cable detection facility, cable detection must be removed from the control unit. Cable detection is removed by connecting the jumper between pins 4 and 6 in the connection field (Fig. 2). The recommended probe installation is such that the probe can be lifted up through the inspection tube for mechanical cleaning. If the 15 m standard cable length is not sufficient, the cable ex-tension must be made water-tight to ensure undisturbed opera-tion. Max. cable length is 150 m.

SERVICE AND REPAIR

The sensing elements of the probe should be cleaned sufficiently often, e.g. when emptying the tank. The function of the probe can be tested by immersing its sensing element in water – then the control unit should give an alarm in 4-5 s. The function of the control unit can be checked in conjunction with the probe function test. The function of the alarm indicator lamp, relay and buzzer on the control unit can be checked sepa-rately by first disconnecting line power, where after the alarm re-lay will be de-energised.

When reconnecting line power:

the buzzer will give a short signal sound
the red alarm indicator is on for about 1 s
the alarm relay will be energised in about 4 s if the probe does not give an alarm

The control unit does not include serviceable parts. In the event of damage, please contact the supplier. The mains lead of the control unit may be replaced only by the manufacturer of the device or a service organization authorized by the manufacturer.

OPERATING MODES OF THE DEVICE

Labkotec-Lokaset-20-Septic-Tank-Full-Alarm-fig-3

| INDICATOR AND BUZZER STATES|
---|---|---
Operation indicator status| __

Buzzer status

GREEN| RED
1| Normal operation| ON| OFF| NO SOUND| The tank is not full.
__

2

| __

Tank full alarm

| __

ON

| __

ON

| __

CONTINUOUS SOUND

| The tank is full.

The alarm can be acknowledged and the buzzer silenced by press- ing the acknowledge button.

__

3

| __

Tank full alarm, ack- nowledged

| __

__

ON

| __

__

ON

| __

__

NO SOUND

| __

__

The tank is full.

__

4

| __

__

Tank full alarm, disap- peared

| __

__

ON

| __

__

FLASHING

| __

__

NO SOUND

| Tank full alarm which has disap- peared before it has been acknowledged.

The tank has been full and it has been emptied, or the tank is being filled up.

Flashing can be stopped by pressing the acknowledge button.

__

5

| __

__

Cable fault alarm

| __

__

FLASHING

| __

__

FLASHING

| __

__

NO SOUND

| The probe or its cable is damaged or the probe is not connected to the device, or a SET/L probe with- out cable detection facility is being used (see Fig. 2).
__

6

| Power is not con- nected or the device is damaged| __

OFF

| __

OFF

| __

NO SOUND

| __

Check that the device is con- nected to the mains.