The Ecklund-Harrison pasteurize Process Monitor 4 (PM-4) is the next generation PU tunnel pasteurizer beer and beverage pasteurization monitoring computer.  In response to your needs, we have eliminated the need to calibrate and recharge the internal battery. While the operators interface is virtually identical to the PM-2000 and the PM-3, the ease of use and reliability is greatly enhanced. 

The PM-4 is housed in a waterproof NEMA rated enclosure.  The window in the housing cover allows for the display of operational data.  This gives the user immediate results of the product run without having to interface to a computer.

A water tight electrical connector allows for the attachment of interchangeable Precision RTD temperature probes (the same probes used with the PPMC, PM-2000 and the PM-3).  The PM-4 communicates with a computer using an IR (Infra Red) reader attached to a serial or USB port.  The PM-4 utilizes extremely low power components and operates with a very high amperage hour rated internal battery.  The PM-4 will operate over 800 hours  (approximately 1 year) before battery replacement.

The PM-4 travels with the product through the tunnel pasteurizer.  A product container (can or bottle) is placed in a “sample basket” and the temperature of the cold spot is monitored with a precision RTD temperature probe attached to the PM-4. A second precision RTD temperature probe monitors the ambient spray temperature.  Product temperature as a function of time is measured and used to calculate Pasteurization Units (PUs).  Spray and product temperatures, maximum cold spot temperature, and elapsed time are all recorded and saved in memory.  To store a permanent record of the product run, the PM-4 may be interfaced to a Windows® based computer using the optional IR reader.

Our Windows® compatible software provides the capability to store data, produce screen displays, and print graphs.  The PM-4 software is very user friendly and easy to install.

*A PU derived from the Lethal Rate Curve, is logarithmically a function of time and temperature.  One PU will be delivered if 140 degrees F (60 Degrees C) is maintained for one minute.  PU's change with temperature by an order of magnitude (x10) for each 12.5 Degree F (6.9 Degree C) change in temperature and increase with increasing temperature.

PM-4 Features:

·          Liquid Crystal Display permits the operator to view:

1)  Starting temperature

2)  Maximum product and spray temperatures achieved during the “run”

3)  Time - duration of the “run”

4)  Pasteurization units accumulated

·         Software provided permits the user to recall the graphs and detailed summaries for analysis and printing.

·          Automatic self calibration eliminates manual calibration errors.

·        Run data is stored in database format enabling a user familiar with Microsoft Access® to produce custom reports.

·          The “Z” factor is software changeable.

·         Probes for PPMC, PM-2000 and PM-3 pasteurization monitors may be used with the PM-4.

·          Communication with a PC is accomplished by IR (Infra Red).

·          Internal battery never needs recharging (annual replacement).

·          Real time clock.

·          Date and time stamp on printouts.

·          Fahrenheit or Celsius temperature measurement is software changeable.

·          LED light blinks during sampling to assure operator the unit is in “RUN” mode.

·          TAT (time above temperature) threshold is software changeable.

·      PM-4 interface software is compatible with Microsoft Windows 95, 98, ME, NT, Professional 2000, and XP.