Regulator LB-760C with the measurement sensors creates a set for
substrate production in mushroom cultivation. It is designed for
measurement, regulation and registry of temperature, oxygen
concentration and aeration in the substrate fermentation processes
“indoor” method or during substrate excess growth in mass. The
a stationary device, powered from 230V network made in a form of a
panel to be hanged on a wall. The device’s construction is based on an
advanced microprocessor technique. Controlling the regulator is
possible by using a remote control pilot. The solution applied, allows
on comfortable regulator control in a place not easily accessible but
also increases maintenance security, makes it impossible for the not
authorized persons to gain access. All of the measurement results are
presented on the easy to read LCD displays.
Each regulator LB-760C is assigned for supervision of only one fermentation or substrate excess growth in mass tunnel. In case of having more tunnels, it is necessary to apply a separate regulator for each one of the tunnels. The regulators LB-760C installed in the separate tunnels, after being attached to a computer of PC type create a shared control-measurement system. At that time a measurement system of O2 concentration is possible (pict. 1), besides a comfortable control over the regulators from a PC computer is possible along with the measurement result collection, creation of their history, scrolling over the results in graph forms of and printing the graphs on a printer. For connecting the regulators with the computer an interface RS485 is used, which assures a minimal number of cables used between the regulators and the computer as well as a great data transmission range (few hundred meters).
The output regulation signals are controlled by the measurement
results obtained in the regulation procedures based on the set values
and the actually measured values: an average substrate temperature and
oxygen concentration. It is possible to manually program the values of
the output signals.
The basic function of a smooth regulated fresh air inflow throttling
valve is controlling the temperature of oxygen concentration in
fan of regulated efficiency, influences temperature adjustment in the
whole substrate volume.
The regulator is equipped with an alarm outlet, allowing on
signaling the alarm statuses (probe defect, lack of power supply) or
improper condition of the substrate parameters. The alarm output can be
attached with i.e. a bell, which notifies the staff on duty about an
occurrence of an alarm situation.
In case of an installation consisting of a greater number of the regulators LB-760C and of a supervisory PC computer (pict.1) it is possible to apply only one oxygen concentration meter for the whole installation. The air from each tunnel is supplied in cycles to the oxygen meter using a system of valves, pipes and an air pump. The functioning of such a measurement system has to be constantly monitored by a computer – it is a work condition for such installation. Using such a method of CO2 concentration measurement, allows on substantial cost reduction, since only one oxygen concentration meter is required. The regulators LB-760C can work in a common installation with the regulators LB-760A.
|Pict. 1. Example system constituents for three substrate fermentation tunnels “indoor”:: HU - tunnel, CO - air uptake pipes, ZP - air valves, KO - converter LB-485, LB-710 - hytherograph for measurement of the outside air parameters, PC - computer with a control program, SP - measurement box containing: FO - draining filter, PO - air pump and DC - oxygen concentration meter.|
The construction of the devices and work of their control software was prepared in cooperation with the mushroom growing experts and is constantly developed using data collected in the mushroom growing halls.
Each user of the L-B regulators can perform a free software update of the regulators and a PC control computer. Because of a modern regulator construction there is a possibility of multiple independent program implementation work in the regulators. For such purpose the user downloads using the internet the newest software (or receives it on a floppy disc) that after starting loads the new software work from the PC control computer successively to all regulators. Software DOS for a PC works in a DOS system in DOS emulation in the systems Windows 95/98 as well as in DOS emulation in the Linux system.
At present a new program LBX for a PC is available, which controls work of the regulators LB-760, LB-760A, LB-760C and LB-760D, which works in different Win systems which was developed as an answer to constantly increasing user expectations, appearance of the quality certification HACCP as well as development of computer engineering.
The LAB-EL company provides as a basic set: regulators LB-760C,
temperature measurement probes as well as control software for a
computer. As an additional equipment the company provides a converter
LB-710R with a shield
LB-719, oxygen meter with equipment for system measurement and
screened computer cables (for attaching the regulators with a
computer). Purchase of a control computer and a printer should be
performed taking into account the closeness of a warrant service in a
computer company close to ones place of living. We assure additional
service in a form of help in low voltage electric installation and
system configuration (connecting the probes, probe calibration,
parameter programming attaching and configuration of a computer)
Low installation cost assures active participation of an investor in the installation (mechanic assembly of the devices and cables) usage of the investor’s own executive devices.
The LAB-EL company assures guarantee service (12 months) and a full after guarantee service on the territory of the whole country. The guarantee service does not cover the costs connected with reaching the client unless it was arranged earlier with a person performing an installation.
The complete ready-to-go system installations in the tunnels, that
can include a delivery, assembly and service of the executive devices
and the regulators LB-760C (in cooperation with LAB-EL) is performed by
The price offer for a ready-to-go installation can be introduced by the company mentioned above upon request.