Page 54 of 72
©Retrotec Inc. 2012
1.
Remove AC power adapter and USB cable.
2.
Remove battery compartment cover and remove batteries.
3.
There are ribbon cables by the battery compartment, at the heel of the gauge. With a small
screwdriver, ensure that back cable connectors are properly seated (note that there are two
ribbon cables back to back).
4.
Re-connect the AC power adapter.
5.
DM-2 will power on.
6.
Press
[Exit]
to display the main operating screen.
Note that there are two physically separate connectors that need to be connected together. The one
in the rear can be quite difficult to physically connect, and care should be taken to ensure that both of
these connectors are firmly depressed.
9.13
Updating Firmware
The latest firmware is Version 3.01b. The gauge must be returned to Retrotec to have the firmware
updated.
9.13.1
Firmware Changes
Table 10: Firmware changes from versions prior to 2.29 to the current version 3.01b.
Mode Setup (units)
FIRMWARE
Version <2.29
Version 2.31
Version 3.01b
Pressure
Pa, in WC, psf, m
3
/h
Flow
CFM, L/s, m
3
/s, m
3
/h
EqLA
sq in, sq ft, cm
2
EfLA
sq in, sq ft, cm
2
Air Changes
/h
Flow per Area
CFM/sq ft,
CFM/100 sq ft,
m3/hr .m
2
, L/s
.
m
2
CFM/sq ft, CFM/100 sq ft, m3/hr
.
m
2
,
L/s
.
m
2,
, CFM/1000 sq ft
EqLA per Area
sq in/100ft2, cm2/m2
EfLA per Area
sq in /100 sq ft,,
cm
2
/m
2
sq in /100 sq ft, cm
2
/m
2
, sq in / sq in
Hole Flow
CFM, L/s, m
3
/s, m
3
/h
Velocity
mph, fpm, fps,
km/h, m/s
Velocity Flow
CFM, L/s, m
3
/s,
m
3
/h
Other Setup Menu Features (available options)
Full Screen
Timeout
0-120s
Restore Settings
Yes/No
Lanugage
English, Francais,
Deutsch, Norske,
Svenska, Latvijas
