Universal Enterprise EM150 Installation Manual

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EM150/EM200

INSTRUCTIONAL MANUAL

Introduction

The EM 150 and EM 2 00 provide a simple, timesaving alternative to U-tube
pressure measurements. Use the UEi EM 150 and EM 200 to measure gas
supply and draft pressures in residential or light commercial properties.
The EM 200 differential mode provides a convenient method to measure
pressure drops.

Features include

EM150

• Single input to measure positive and negative pressure to ±20” wg

• Ruggedized, including rubber boot with integral magnet

• Simple two-button operation

• Measures in inches water gauge

• Auto power-off after 5 minutes of no activity

• One year limited warranty

EM200

• Dual input differential measurement to ±60” wg or ±150 mBar

• Ruggedized, including rubber boot with integral magnet

• Measures in inches water gauge and mBar

• Auto power-off after 5 minutes of no activity

• MIN/MAX value capture

• Data Hold

• Backlit display

• One year limited warranty

Safety Notes

Before using this meter, read all safety information carefully. In
this manual the word "WARNING" is used to indicate conditions
or actions that may pose physical hazards to the user. The word
"CAUTION" is used to indicate conditions or actions that may
damage this instrument.

Before every use, check to be sure the meter and its tubing are free
from breaks or blockage. While using the meter, if you suspect gas is
leaking , or if you can smell gas, close off the gas supply and ventilate
the occupied space. Identify and repair the source of the leak before
continuing with the test.

In the interest of safety, this instrument should only be used by trained,
competent professionals who know the hazards and consider the risks
of working on and with industrial equipment.

These meters do not measure water pressure; under these conditions
they will fail. DO NOT exceed 10 PSI input pressure.

International Symbols

Operating Instructions

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.

Measure pressure

Connect the flexible tube between the meter and the pressure source.

The EM200’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 negative 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.

Scale (EM200 only)

To select mBar press the “SCALE” button on the EM200. Press “SCALE”
again to return to inches of water gauge.

MIN/MAX (EM200 only)

The EM200 will capture values for both the minimum and maximum
values read. To reset zero the instrument or simply power the meter off,
then back on. Captured values can be displayed in either inches water
gauge or mBar.

Backlight (EM200 only)

The EM200 has a backlit display. Press “ “ to turn on or off the back
light feature.

Over-range

If the input exceeds the meter range “OL” will be displayed.
Immediately disconnect from the pressure supply safely to reduce
chances of damage to the instrument.

EM150/EM200-MAN P. 1