610-03 Digital Pressure Meter

Printable PDF: 610-03 Digital Pressure Meter

Instructions for measuring pressure in the LI-610.

The 610-03 Digital Pressure Meter is a lightweight, portable manometer which can be used to measure differential pressure or vacuum from a variety of sources, including the LI-610 Portable Dew Point Generator. Follow these steps to measure back pressure from the LI-610 condenser block:

  1. Press the green button to turn the 610-03 on. A low battery is indicated by a "BAT" message in the lower left hand corner of the display. Slight fluctuations may occur on the display if the two ports on the top of the 610-03 are open.
  2. Select the range of the instrument by pressing either the "1" or "0.1" buttons. Pressing the "1" button selects a range of 0-1000 mbars (1 mbar resolution), and the "0.1" button selects a range of 0 to 199.9 mbars (0.1 mbar resolution).
  3. Connect a section of the 1/8" ID tubing (included) between the fill/drain port on the LI-610 condenser block housing and the left-hand pressure connection port on the top of the 610-03. The display will show positive values if pressure is exerted on the left port, or if a vacuum is applied to the right port. The display will show negative values if a vacuum is applied to the left port, or pressure is exerted on the right port.
  4. With the LI-610 turned OFF, zero the 610-03 by turning the knob on the bottom of the manometer in either direction until the display reads 000 (or 00.0).
  5. The millivolt output connector is located between the two pressure ports on the top of the 610-03. The voltage output from the 610-03 is linear, and corresponds to 1 millivolt/1 millibar. Connect the red lead to the positive terminal of your input device, and the black lead to the ground (or chassis ground, if available).
  6. Press the red button to turn the 610-03 off.

Note: Velcro is included to attach the 610-03 to the LI-610, if desired. Do not attach the velcro to the battery compartment panel on the back of the 610-03, as repeated detachment can damage the panel.

Range: High - 0 to 1000 mbar (1 mbar resolution).
Low - 0 to 199.9 mbar (0.1 mbar resolution).
Accuracy: ± 0.15% ± 1 digit at 25 °C.
Operating Range: -10 to +50 °C.
Temperature Effect: 0.02%/°C (-10 to +50 °C).
Pressure Connections: Two ports for 1/8" ID, 3/16" OD tubing.
Media: Gases, air.
Controls: Membrane switches for range selection and ON/OFF.
Zero point correction control.
Housing: High impact resistant blue ABS molding.
Size: 125 × 70 × 31 mm (4.9 × 2.75 × 1.2").
Weight: 250 g (0.55 lb.) including battery.
Power Requirement: One 9V Alkaline #522 or equivalent.
Battery Life: 100 hours continuous use.