Retrotec DM-2 Gauge - Manual

QuickGuide
The DM-2 has two independent differential-pressure
sensors (Channel A and B) and an automatic controller that
will control all Retrotec fans.
Channel A always displays the pressure difference between
the blue “Input A” and the red “Ref A”. “PrA” on the screen
refers to Pressure on Channel A.
Channel B similarly measures pressure between the green
“Input B” and the yellow “Ref B”. This pressure, "PrB", is
converted to flow or other units when a Device and Mode
are selected. See Page 4 to change the enabled Devices
and Modes.
The DM-2 includes:
1 ― DM-2 Gauge
4 ― AA NiMH rechargeable Batteries
1 ― AC power adapter
1 ― Laptop-style case
1 ― Computer interface cable (mini-USB to USB)
1 ― Color coded set of tubes and connectors
1 ― Speed Control Cable to connect to Device
● 4 AA NiMH rechargeable batteries are supplied.
● Install by removing the lower compartment cover on
the back of the DM-2.
● Fully charge the batteries on first use, but avoid
prolonged charging.
● Press [On/Off] and the Retrotec screen shown
below appears.
● The batteries are fully charged when the indicator is
solid black.
● Non-rechargeable batteries can be used. To protect
the DM-2 from damage, press [Setup], scroll to
“Battery Type” and select “Rechargeable” or
“Not Rechargeable”. Press [Exit] to save selection.
Warning: Non rechargeable batteries may explode
if charged. Only charge rechargeable NiMH batteries.
Follow steps 1-15 to learn the basic gauge functions.
DM-2 mark II Digital Gauge
For the latest Retrotec documentation, visit us at: http://www.retrotec.com
Step 1: Batteries
Tip: The DM-2 will not start charging unless
it is turned On.
Tip: If “Not Rechargeable” is selected, no
recharging will occur.
QG100 Page 1 of 4 rev-2012-08-29
www.retrotec.com Sales & Support: (855)738-7683 International: (604)732-0142 Made in Everson, WA USA