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DM 650LP

Digital Pressure & Temperature Gauge With Data Logging, Dual Alarms & Messaging

  • Pressure and Temperature Gauge
  • Absolute or Gauge Pressure
  • Dual Relay Outputs
  • High Accuracy
  • 3600 Point Data-logger with USB and NFC Interface
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The DM670PM battery powered pressure temperature gauge that accepts gauge or absolute pressure inputs up to 100 BAR and displays the sensor pressure in BAR, PSI or the user’s engineering unit on a 6-digit LCD display. The instrument offers an advanced display mode allowing the user to also display one or two (1 to 32) character messages. Additional to the messages, the user may select an alert event to occur when the pressure is within a band. The two change-over relays in the pressure temperature gauge can be used together with the messaging and alerts to provide switching at user set points. In addition to this, on board data-logging is also available to record process details at up to 3600 points.

We have a full range of diaphragm seals to go with this product.


The instrument is equipped with dual volt-free changeover-type relays, operating independently. The user may select one of seven actions, including deviation, latched or non-latched operation, with fully adjustable set point and dead-band. The Relays may be turned off if not required to extend battery life. An option is provided to trigger an alert-event when a relay contact is on.


DM670PM also provides a powerful data logging function. The log points can be set up to 3600 points, each point is time and date-stamped together with process value, temperature and relay state information.

The log rate is selectable in steps. The start of log can be delayed if required. Either fixed or rolling logs may be performed.

Two methods of reading the log are available. The USB configuration reads the log and allows the user to save to a text file for export to other programmes. While the NFC android interface allows data transfer to compatible android phones or tablets, by using the downloadable App the data can be graphed and forwarded by email, Bluetooth etc. The NFC interface is also capable of starting a new log with different log period and modes.


5-point calibration can be applied using the USBSpeedLink software.

As well as straight line interpolation, up to 22 points (x,y) of user-linearization are available for creating custom curves and corrections.


Date and time-stamped maximum, minimum and average temperature values as well as relay on and relay off data is recorded and can be displayed along with the current time and date. The real-time clock is also used to record the data logged points.