Retrotech DM-2A - Manual (Page 39)

Retrotec Energy Innovations, Ltd.
31
DM-2A Mark II 2008-02-22
9. Press the J
Og
/H
Old
keypad button again. Notice that Hold now appears at the top
centre of your gauge display screen (as shown next). In this state, your gauge will
hold the current measurements. This is useful when you wish to freeze a specific
pressure reading at a given speed.
10. Press the J
Og
/H
Old
keypad button a third time to cycle the feature to off, as indicated
on your display screen.
11. To turn the test device fan off, press the S
et
S
peed
keypad button, enter a percent
value of 0 and press the e
nteR
keypad button. Your test device fan will gradually slow
to a stop.
Setting the Pressure
12. Press the S
et
p
ReSSuRe
keypad button. Notice that the words Room Pressure: now
appear on the gauge display screen followed by a blinking cursor (as shown next).
This feature enables you to manually control the pressure of a room or enclosure
using the pressure created by the test device fan.
DM-2A Mark II Dual-Channel Pressure Gauge User Manual
4:
Basic Operations