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Updating firmware, Firmware changes, 13 updating firmware – Retrotec DM-2 User Manual

Page 54: 1 firmware changes

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©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

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