OPERATING INSTRUCTIONS
1. Zero the meter
Prior to use, the meter must be zeroed. To do this, ensure the
meter is in a non-pressurized area, and press and hold the
‘ZERO’ button for approximately four seconds. The display will
show ‘888’ to indicate that the zero function has occurred.
2. Measure Pressure
Connect the flexible tube between the meter and the
pressure source.
The EM201’s positive input is to the right when looking at the
front of the instrument. Applying a positive pressure to this
port will display a positive reading. The input to the left is the
negative port. (Applying a positive pressure here will display a
positive reading). Use either input to measure a single source
by venting the unused input to atmosphere. The instrument will
continually provide a differential reading of the two inputs.
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