Category: JOLA

Continuous level measurement for use in Liquids

ALVI AUTOMATION (India) Pvt Ltd also trading as GasAlarm Systems a div  of ALVI Technologies Pty Ltd introduces all New Continuous level measurement for use in low-viscosity liquids or liquids with only low solid content in open or closed tanks by JOLA Germany

Level Indicator Consisting of
• sensor:
Switchable resistances activated by float via reed contacts
• transmitter:
A 2-wire module in the terminal box of the level indicator converts the resistance values
into a load-independent current signal 4 … 20 mA.

Working principle :

A float with built-in permanent magnet moves up and down with the liquid level on the probe tube of the TSQ 4-20/… level indicator.

Inside the probe tube, there is a chain made up of reed contacts and series connected resistors. The magnet in the float switches the reed contact(s) which are at the same position as the float. This results in a quasi-continuous height-proportional resistance measurement.

The change in resistance resulting from the upward and downward motion of the float is recorded via a current loop transmitter in the terminal box of the TSQ 4-20/… level indicator and is converted into a load-independent current 4 … 20 mA.

Area of application :

The TSQ 4-20/… level indicator is designed for use in low-viscosity liquids or liquids with only low solid content in open or closed tanks. It is not suitable for use in liquids that are prone to deposit formation, adhesion or crystallisation which might hinder the movement of the float on the probe tube. It is also not suitable for use in liquids with permanently moving surface and/or on vibrating machines.

Application Example :

Jola – Fuel (Liquid) Leak Detector

ALVI – India in association with Gas Alarm Systems – Australia and Jola Germany offer Fuel Leak Detection.Industrial processes where fuel oil is used and stored, it is imperative to integrate an efficient fuel leak detection system to continuously protect distribution lines or storage tanks from leakage.

Most of the storage facilities in process industries, where spills are common, use bund as a part of spill containment system. Bund is a constructed retaining wall around storage providing a barrier to an unintended escape of material until remedial action is taken. It is best to detect the leak within the bund when the leak size is small avoiding further damage and expensive clean-up costs.

Bunding is widely used in fuel oil storage. Fuel oil such as petrol, diesel, kerosene, etc being non-conductive in nature , to detect and sense the presence of leak is a special challenge.

JOLA- Floating switches For Mines

ALVI Automation in association with ALVI Australia and Jola Germany takes pride to present  the Jola Float Switches in India .

For mounting from the side or from the top.
To ensure a correct switching the cable must be fixed at the required height:
• using a stuffing gland, for example, in the case of mounting from the side or
• using a fixing weight, for example, in the case of mounting from the top.
These units are not suitable for use in turbulent liquids (e.g. in stirrer tanks).

Technical data :  SI/SSX/LF/20/1/K/…/Variant 0 I M2 / II 2 G …
Application : for use in intrinsically safe circuits in mines susceptible
to firedamp or in potentially explosive atmospheres
zone 1 and 2;
EC  certificate :  INERIS 03 ATEX 0149
Operating principle : Ball-operated microswitch, potential-free changeover contact.
Float protection class : IP68
Max. immersion depth
of the float max. 10 metres head of water at + 20°C
Connecting cable /application range /temperature range :  black TPK cable, 4 G 0.75 (SI/SSX/LF/20/1/K/TPK/…):
For use in:
water / used water / slightly aggressive liquids,
specific gravity: ≥ 0.7 g/cm³

Temperature : Between 0°C and + 60°C
Black CM cable, 4 G 0.75 (SI/SSX/LF/20/1/K/CM/…):
For use in:
water / certain acids / certain lyes, specific gravity: ≥ 0.8 g/cm³

Temperature : Between 0°C and + 60°C

Continue reading “JOLA- Floating switches For Mines”

Level Measurement for Fuel Oil Tank

Why measure Fuel Oil Level?

Precise control of level measurement for fuel oil tank is crucial in many applications. In process plants fuel oil is delivered to the storage tanks and then is transferred to process or may be a smaller day tank. It is very important to know the fuel oil level either in the storage tank or in a day tank for day-to-day operations of the plants.

The main aspect for level measurement for fuel oil tank is to keep track of inventory in terms of volume. Keeping good control over your inventory has become increasingly important over the last several years. Level measurement is one key component for reliable and accurate inventory control. Many processes require a steady supply of inputs . A storage tank between the supply and process acts as a buffer and maintains steady and consistent supply for the process. For a maximum process efficiency the tanks need to be filled to full capacity at all times.

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Jola – TSR Immersion Probes

Gas Alarm Systems – India (http://www.alviautomation.com)  in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) offer Jola – TSR Immersion Probes
The TSR immersion probes have a probe tube with built-in monostable reed contacts. The float is fitted with a permanent ring magnet and moves freely up and down the probe tube, activating the reed contacts as it rises and falls.

Jola – SM Float Switches

Gas Alarm Systems – India (http://www.alviautomation.com)  in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) offer Jola – SM Float Switches
The rising or falling liquid level causes the float to move up or down respectively. When the float rises, it activates a micro switch (changeover contact).

Jola – SSX and SI/SSX1/K Floating Switches

Gas Alarm Systems India(http://www.alviautomation.com) in association with Gas Alarm Systems Australia (http://www.gasalarm.co.au) offer Jola-SSX and SI/SSX1/K Floating Switches

product Description

Jola – KUR 5film sensor for detection of moisture on a cooling ceiling and for cooling ceiling control

Gas Alarm Systems India(http://www.alviautomation.com) in association with Gas Alarm Systems Australia (http://www.gasalarm.co.au) offer  Jola– KUR 5film sensor for detection of moisture on a cooling ceiling and for cooling ceiling control.

Product Description

Leak Detection By JOLA SWITCHES

ALVI Automation India www.alviautomation.com present’s in INDIA Jola Float Switch – SSP Mercury Free For Liquid Level Detection, Jola float switch (mercury-free) for automatic control, regulation and signaling of liquid levels. Switching element:

* Potential-free microswitch
* Contact is effected by the rising and falling of the float with the liquid
* For mounting from the side or from the top.

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JOLA Film Type Moisture Or Condensation Sensor / Detector

ALVI Automation Gas Alarm System India   offer JOLA FTS/KO-1 Film Type Moisture Or Condensation Sensor / Detector. FTS / KO-1 film type moisture or condensation sensor / detector for cooling ceiling controller.

Industries:

• Refrigeration
• clean room, pharmaceutical, medical
• IT, data center
• marine, naval, defence, army
• automobile, power plants, hydro plants
• machine rooms, electrical room
• transportation, cold stores
• research, education, space industry

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For Detection of Hydrocarbons, Diesel, Petroleum Products, Spill on Water

For Detection of Hydrocarbons, Diesel, Petroleum Products, Fuel on Sea Water, Water, River Streams, Lakes, Ponds, Waste Water, Trade Discharge of Effluents, one of the most cost effective solution is to used Jola Germany floating electrodes leak detectors SCHE. Continue reading “For Detection of Hydrocarbons, Diesel, Petroleum Products, Spill on Water”