Ltd.
Since 1990   
 

Geneza Ltd. Temperature Measuring Instrumentation.

Precision Thermometers and Temperature Controllers.
I am very pleased to present the profile of Geneza Ltd. and our products line. Our Company has been on the market since 1990 and we have earned very good reputation by our long term cooperation both with the small and most prestigious corporations, companies, technical universities and research centres as well.
Our customers can always rely on Geneza's custom capabilities to provide them with the highiest quality instrumentation and probes for their application, at very competetive price and within a very impressive delivery time. Our meters, probes and sensors have broad application in process engineering, food managements, air  conditioning systems, water boilers, refrigerators, meteorology and enviromental research, hydroelectric plants, woodworking industry, and many others uses in experimental and research facilities.

Specifically, we offer:

• Pt - 100 and Pt - 1000 platinum temperature probes
• interchangeable thermistor probes
• temperature and relative humidity measuring products
• windspeed and wind direction indicators
• research and development in electronics, sensors and probes
• projecting, designing and manufacturing sensors, probes and transmitters for high technology industry, universities, agriculture and food industry
• layout and production of customised sensors and probes

Due to our experience and our laboratory equipment we have been registered at the Regional Measurement Office in Kraków, Poland.

Common parameters of products
Our equipment allow to measure temperature in the range from -200^oC to +1750^oC, so it can be used in the great deal of application from cryogenic engineering to high temperature processes. An essential advantage of our equipment is a possibility of preprogrammed matching user's probe characteristic to the ideal one. This advantage allows to make precision temperature measurement even if user has a class C probe. The highiest quality of this solution confirmed investigation conducted by the Regional Measurement Office in Kraków, which confirmed that our thermometers are traceable to the national and international standards. For example our microprocessor thermometer version S (thermocouple PtRh-Pt) is traceable to the national standard with a tolerance +0.1%( i.e at +1750^oC the measurement error is only 1^oC). Additionally all our products are DIN sized and they meet all requirements of the world wide standards.

Pocket size thermometers

The serie of pocket size thermometers accept, dependently from the user requirement and temperature range, a Pt - 100 probe or a J, K or S type thermocouple.
These models features a quick disconnect panel jack input for sensor and a large easy - to - read LED or LCD display allowing 0.1^oC resolution in the temperature range from -200^oC to +850^oC for Pt-100 version and 1^oC resolution in the temperature range from 0^oC to +1750^oC for a S type thermocouple  version. The pocket size meters are compact, high precision thermometers with probes interchangeable through the connector base and cover broad range of applications  including laboratory, industrial and warehouse, in food, grains and particles, in tank and narrow gaps, between sheets of paper and cloth, in wall crevices, and for many applications in plastic processing, foundry or factory enviroment.

Handle temperature probes
The laboratory and research probe is designed for continously temperature monitoring and present a major advance in precision temperature measurement. Probe assemblies are ideal for use in chemical processes, ovens, furnaces and vessels, soft material and molten plastic or rubber. Photo. These probes are calibrated to the internationally accepted EN - 60751 + A2:1995 curve (alpha = 0.00385) and meet 0.1% tolerance. Hence, all our probes can be used interchangeable without meter  recalibration. Handle probes are compatible with a wide variety of microprocessor and digital HACCP, thermometers, indicators recorders and controllers designed for platinum resistance input.

Industrial probes
The industrial probes are designed for continously temperature monitoring represent a major advance in precision temperature measurement. Probe assemblies are ideal for use in chemical processes, ovens, furnaces and vessels. Rugged construction photo withstands increased pressures and vibration forces found in rough industrial enviroments.
Geneza`s industrial probes are calibrated to the internationally accepted EN-60751 + A2:1995 curve (alpha = 0.00385). Hence, all our probes can be used interchangeable without meter recalibration.
Industrial probes are compatible with a wide variety of microprocessor based and digital HACCP, thermometers, indicators, recorders and controllers designed for platinum resistance input. Specially Geneza Ltd. temperature measurement and control equipment are recommended.
Probes are electrically isolated and come with 1.2 meter lead. Water resistant junction between probe and lead should not be immersed.

Microcomputer panel thermometers

The TP-196 panel thermometers versions P, J, K or S are high precision microcomputer controlled, DIN size meters which accept, dependently from the version, a Pt - 100 platinum resistive sensor or a J, K or S type thermocouple. These models features a quick disconnect panel input for a probe and a large easy - to - read LED display allowing 0.1^oC resolution in the temperature range from -200^oC and +850^oC for Pt - 100 version and 1^oC resolution in the temperature range from 0^oC to +1750^oC for a S type thermocouple version. Higher accuracies, greater than typical electronics HACCP, thermometers, are achieved through a unique linearizing technique. The TP - 196 is a compact, high precision thermometer with a probe completely interchangeable through the connector base and covers a broad range of applications including laboratory, industrial and warehouse and for many applications in pharmacy, food management, plastic processing, foundry or factory enviroment.

The instruments which fulfil requirements of the quality assurance system ISO - 9000.

Platinum temperature probes and thermocouples are subjected to a great deal of thermal, chemical and even mechanical stresses during their industrial use. As the temperature is one of the most important indicators of quality, operational safety and service life, the quality assurance systems based on ISO-9000 demand inspection and calibration of temperature probe at least once a year. To meet this requirements, Geneza Ltd. Developed Computer Calibrators series ISO - Test 9000.
The system calibrates and inspects resistance thermometers ( Pt - 100, Pt - 500, Pt - 1000 and Ni - 1000), thermocouples J,K and S in accordance with the international standards EN - 60751 +A2:1995 (RTD) or  EN - 60584.1 (TC) and ISO 9000 procedure series.
The ISO - Test 9000 system consists of programmable heated   circulating bath, calibrator which feature bi-directional RS - 232 interface to external computer (PC). During the test operation, the software enables you to view all data and create calibration  certificate including your private logo.
All parts of the ISO - Test 9000 system possess, issued by the Measurement Office, certificates of conformance to the international temperature standards. Calibration values can be manually entered and stored for each standard traceable probe at any temperature given in their certificate of traceability.

Scanning thermometers/dataloggers

Geneza Ltd. 8-channel scanning thermometers/loggers are perfect for simultaneous temperature monitoring during different industrial and laboratory process steps.
Wall mount units in rugged plastic housing, which fulfil IP54 requirements, store data and download to your PC or printer, because they feature RS 232 and Centronics parallel printer output. Dependently from the model, this sophisticated thermometer covers temperature range from -100^oC to +1750^oC and achieve accuracies of +0.2% of reading. Reading may be logged and stored at intervals ranging from 2 minutes to 99 hours. Nonvolatile memory stores setup conditions (RS-232, printers, log interval, probe calibration). The meter also includes a real time clock which shows time, day, month and year.
Higher accuracies, grater than the typical electronics HACCP, thermometers, are achieved through   a unique linearising technique. All models features a quick disconnect panel input for probes and a large easy-to-read LED display allowing 0.1^oC resolution for Pt-100 probes and 1^oC for thermocouples. However, if the meter is connected to the PC you can achieve 0.01^oC of resolution.
 
Programmable Temperature Transmitter

The PTVC -100 Temperature Transmitter represents a major advance in precision temperature measurements. This sophisticated transmitter allows to convert the resistance of Pt - 100 platinum probe vs. temperature into voltage or current. The one of the four modes can be easily choose just by switching the microswitch on the PCB (see fig).
All transmitters are precisly calibrated to the apprepriate standards. This guarantees the interchangeability of transmitters.The PTVC - 100 transmitters are compatible with a wide variety of digital multimeters, ammeters, indicators, recorders and controllers designed for voltage/current input. The wall mount and duct mount models are both housed in plastic case which fulfill IP54 or IP65 requirements.

Humidity meters

Geneza Ltd. offers higrometers and thermohigrometers ideal for both on-site and field relative humidity and temperature readings. The humidity sensors possesses long term stability and negligible hysteresis. Also, they are insensitive to most chemical vapours. For measurements in dust enviroment you can choose a probe with the sintered filter.  The temperature channel in thermohigrometers features Pt - 100 probe for the accurate reading. All models have a large easy-to-read LED or LCD display allowing 0,1^oC and 0.1%RH resolution. Microprocessor based datalogging thermohygrometer model THM-298 loggers almost anywhere humidity and temperature need to be monitored. Additionally this sophisticated meter can  continously maintain the humidity and temperature levels to your desired set points. Dual alphanumeric display shows scale and mode selected. Nonvolatile memory stores setup conditions (RS-232, printers, log start time, log interval, probe calibration, alarm settings, time, months, day and year). Maximum, average and minumum values can also be displayed using the keys. Reading may be logged and stored at intervals  ranging from 1 minute to 99 hours. Offered equipment cover a broad range of applications, including laboratory and warehouse and for many every day uses in an office or factory enviroment.

Microprocessor Thermohygrometer
Model THM 298

Description.

Microprocessor based thermohigrometer model THM 298 sets a new standards in thermohygrography. This temperature/relative humidity datalogger accurately measures, indicate and record temperature and relative humidity creating charts and graphs on the printer connected to its parallel output. The instrument features backlit alphanumeric display and battery backup during power failure. Model THM 298 also contains two relays which switch contacts in response to an alarm condition. Simultaneous alarm points for temperature and relative humidity are user selectable. When the current condition exceed any of the preset values the contacts of the relays switches and/or special icons on the front panel lit.

This sophisticated wall-mount unit is assembled in rugged plastic housing with flipping open front panel door which permits access to the control keys of the thermohygrometer.  

Other unique features make the THM 298 an even better value: digital calibration of both temperature and humidity channels with the code lock to prevent unauthorized changing and minimum, average and maximum starage in user selectable time interval. Nonvolatile memory stores setup conditions (RS 232, printers, log start time, log interval, probe calibration, etc).

Technical data.
Temperature sensor ..................................................... Platinum Pt - 100 RTD
Humidity sensor ........................................................... Thin film capacitance
Range for temperature measuring ........... -40^oC to +80^oC (up to +120^oC optionally)
Range of humidity measuring ...................................... 5.0% to 100.0%
Temperature/humidity resolution ................................ 0.1^oC/0.1%RH
Temperature accuraccy ................................................ + 0.1% of the range
Humidity accuraccy
      + 2% @ calibration temperature, between 20 and 90% RH
      + 5% @ calibration temperature, below 20% or above 90% RH
Instrument calibraton:
     temperature .................... in one, two or three user selectable points
     relative humidity .............. in one or two user selectable points
Log intervals ................................................. from 1 minute to 99 hours (programmable)
Datalogging capabilities to internal memory ..................................... up to 1000 readings
Datalogging:
- hard copy with the time and date on the printer connected to the Centronics parallel printer output (charts)
- storing in the internal memory and further printing on the printer with the time and date (charts or graphs)
- output to the PC through RS - 232 serial interface for further analysis, storage and hard copy printouts
Digital outputs:
     RS - 232 serial interface
     Centronics parallel printer output
Power .............................................................................. 220 V, AC
Housing .................................. Wall-mount, easy-to-view, IP 54 plastic housing
Dimension ................................................. 195 W x 210 H x 140 D mm

Microprocessor based temperature controllers
.
The panel mount, DIN sized, microprocessor based temperature controllers provide full programmability with a complete array of features in a compact low cost unit. Higher accuracies, greater than typical indicating controller, are achieved through a unique preprogrammed linearizing technique. These controllers feature also four bright, easy - to - read, large digit displays for process and two digit LED displays to show set point of status. Another feature of the MRP controllers are the text display which ensures simple programming and operation. Outputs are either ON/OFF or PROPORTIONAL via internal relay. These outputs are selectable with the keypad. Photo
In the ON/OFF mode, controller switch On the heater, when the temperature of the object is lower than programmed and switch Off on the crossing the set point of temperature. Because, the heater has always a thermal inertia and gives up the heat even if the electrical power is switched off, the object's temperature increases over the setted value. To avoid this phenomena, the controller has got a histeresis option. The point of this option is that the user experimentaly choose the lower temperature, when the heater should be switched off in order to reach the exact temperature wanted, taking into account a thermal inertia of the specific heater. An additional feature of the controller is a possibility of setting up a hysteresis separately in each of 10 time vs.temperature profiles. A histeresis also neutralizes "snaping" of an external power contactor in the case of intstantaneous and cycling changes of temperature near the set point.
In the PROPORTIONAL mode, the controller suplies the power to the heater proportionally to the difference between the set temperature and actual one. In result the heater's temperature decreases proportionally as the setted temperature is reaching. Such operation is achieved by switching ON and OFF the internal relay during a short time period. This " time proportion " changes the heating efficiency near the temperature set point. The proportional control is performing in the programmable proportional band. Outside this band, the controller works in the ON/OFF mode. Inside this band, the ratio ON time period to OFF time period changes proportionally to the difference between setted and actual temperature. If the actual temperature of heated object is lower than setted up, the heater will be switched ON longer than switched OFF. However, if the actual temperature of the heated object exceed the setted one, the heater will be switched OFF longer time. The proportional band is individually programmable in degrees Celsius for the each temperature profile. Also, the band ratio called "rP" in order to match to a specific technological process is selectable with the keypad.
An essential advantage of the MRP controller is a preprogrammed matching user's probe characteristic to the ideal one. This advantage allows to make precision temperature measurements even if user has got a class C probe.
A nonvolatile memory of setted up control parameters and monitoring possible failures of the connected temperature probe in order to avoid the breakdown the heated object are very special features.
Additionally, the microprocessor temperature controller MRP has an economical option to save the power. As everybody knows, to heat quickly any object it is necessary to input higher power than to stabilize reached temperature. The designers, who know this effect, usually design two heating circuits. The microprocessor controller has programmable possibility to control an additional heating circuit through the internal relay signed "r2" while the main heating circuit is controlled through the internal relay signed " r1 ".  The MRP controllers have also an alarm clock showing current time and date.

Dr Bogusław Herod, President

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