REED DM-01 User manual

Ultrasonic Distance
Meter
MODEL DM-01
INSTRUCTION
MANUL

2

3
ⅠSafely instructions:
This Unit emits a laser beam which projects a
visible Red spot on the target. Do not stare into
the laser beam, shine it near yore eyes or
the eyes of others.
Use of controls or performance of procedures
other than those specified herein and failure to
follow warnings may result in injury.
Warnings:
The power of the emission of the laser beam is
less than 1mW in class ll.
Do not remove the label from the unit.
Care and handing
This unit is a precision instrument which must

4
be handled with care.
Avoid dust and water, use a soft cloth to clean
the unit.
Avoid shock, vibrations and extreme heat.
Keep the unit clean and dry.
Check the battery regularly to avoid
deterioration.
Power off when not use.
Remove the battery if unit is to be stored for a
long period of time.
Function:
1) Measures in imperial /metric
2) Start point selection
3) Data store/recall
4) Computers areas and volumes
5) 5 groups of values in memory.
6) Sum of lengths
7) Auto/manual shut-off
8) LCD backlight
9) Key sound, beeps for wrong reading finding and
reading confirmation.

5
ⅡSpecification
1) Measuring range: 0.5 ~ 16m (1.64 ~ 52.48feet)
2) Settings:
Fm / Bm : switch measures from front or rear pf
unit.
M / FT: Switch measures in metric/imperial
(inside the battery compartment ).
3) Accuracy: ±1%+1 of reading.
Conditions: 25±5℃,＜80%RH
4) response time: 2sec
5) Power supply 9 V battery
6) Current consumption:
6.1)Stand- by current: ≦1uA
6.2)Operating current: ≦60mA
7) Auto shut-off 100 sec( approx)
8) LCD back light :active in 7 sec (approx)

6
9) Operation environment:
Temperature: 0~ 40℃
Humidity : ＜80%RH
10) Store temperature : -10 ~ 60℃
11) Dimension : 20mm×85mm×70mm
12) Weight : 192g
ⅢBefore operating
Slide off the battery compartment door, connect a
fresh 9V alkaline battery to connector, then slide
battery compartment back on.
Notes:
1, For accurate results, choose a target surface
that is large, flat and hard.
2, Place sufficiently sized piece of card board in
front of targets that are too small.
3, The unit can not be measured through glass

7
even though the laser beam can pass through
4, Choose the units and don’t change the units
when you have chosen the measure mode.
5. When the distance is longer than 12m, the
strong wind could affect the accurate.
ⅣHow to use
Power on the meter.
Default graphic on screen shows 0.00m, the
measuring begins from the front side of the unit.
Hold the unit perpendicular and straight to eh
target on the wall and press the READ key.
ⅦOPERATING INSTRUCTIONS
1) open the battery door, install 9V battery
properly.
2) Press the power key for taking the

8
measurement .LCD
Back light active for 7 sec, the device build in
100 sec auto power off.
3) Select measurement unit: Slide the “FT / M
“switch inside the battery compartment to
select between metric and imperial reading.
4) Select measures start point: press Fm / Bm to
change start point .icon “Fm “means
measuring from front of unit , icon “Bm
“means measuring from rear of unit.
5) After 3),4) set-up, point the product to the
surface to the measured
perpendicularly .Press READ for about 1sec,
then reading the value . If keep holding the
READ and moving to take measuring the
dynamic reading will show.
6) Access to compute area:
Press the area key, the unit will work in the
area measuring mode. Press READ key
reading one of the lengths ,aiming to another
direction and press the READ reading the

9
width ,and the same time the AREA value will
displaying in the LCD (the area and the
volume display place) .
7) Accesses to compute volume:
Press the Volume key to run into the
volume measure mode.
Aiming to one direction and press READ
key to get the
Lengths, aiming to another direction and
press READ
To get the width value. Then aiming to
the last direction and press READ key to
get the height value ,and the same time
the VOLUME value will displaying in the
LCD .
8) Sum of lengths;
When one of the lengths has reading
in ,press Sum, then the unit work in the
sum mode. Then pres READ for
measuring , press READ again ,the sum
will output.
The SUM function only can be use for

10
LENGTH values operation. In metric the
maximum sum is 100m, in imperial the
maximum is 100 feet.
9) Change reading when measuring :If a
reading needs to be confirmed for
changes start point before pressing
STORE, may repress READ for
measuring linear distance again.
10) Storage of readings:
10.1) The device has 5 memory units,5 memory
units available for different length ,volumes
areas and 5 memory units for sum data
storage .those data will be store until press
Clear to clear or battery replacement.
10.2) Stored data store in memory unit accordingly
when all memory unit are occupied ,further
storage operation will not be implement unless
press CLEAR to delete one of memory data
11) Recall function:
11.1) When data stored, LCD will display M icon.
In normal status , press recall to call for memorized