AZ Instrument NICEFLOW Users Manual

Operation Manual

10cm Vane

Wireless Air Flow Meter

with Airflow cone

Model:8903/8904/8906

Model:

89161
89171
89191

Thank you for purchasing this wireless

INTRODUCTION

air flow meter. This meter is specially
designed for HVAC&R application that
combines those required measurements,
like Air Velocity, Air volume, Temp., RH,
WBT, DP, and CO2 in one handy meter.

Optional airflow cone helps in quick
volume measurement, just install the
compatible airflow cone, meter will
recognize the area for air volume
calculations automatically.
A hassle free way to take the value of
air volume .

Features :

Wireless transfer with free App

available for both iOS & Android.
Available for air velocity, air volume,
temp., RH, WBT, DP, and CO2.

Big LCD digital display
Multi-points and Timed average
Metric& Imperial units selectable
Optional Round & Square airflow cone
Fast response &
Low battery indication
Blue back light for dark places use
Handheld size, easy to carry

Function Table

Air Velocity
Air volume

Air temp.
Humidity
Dew Point
Wet Bulb
CO2

Accurate reading

89161 8919189171

1

MATERIAL SUPPLIED

This package contains:

The meter x 1
Battery x 4 (AAA size )
Operation manual x1

Hard carry case x1

Optional accessory:

Airflow cone set:
Round conex1 (dia.210mm)
Square conex1 (346x346mm)

CONTROLS AND INDICATORS

LCD DISPLAY

HOLD

inch

cm

Upper display: air velocity, RH, CO2 value.

(Depends on model) duration time in average.

Lower display: air volume, temp., WBT, DP

(Depends on model) value.

HOLD
MAXMIN:maximum & minimum reading

AVG: multi-points & timed average

: battery low voltage indicator

ppm

m/s,fpm: air velocity unit
%RH : relative humidity unit

OO

OO

: temperature unit

F

C

CMM,CFM: air volume unit
WBT, DP : wet bulb, dew point temp.

2

2

cm

inch

: area dimension unit
: air flow cone indicator
: vain icon in this meter

MIN

2

2

MAX

AVG

m/s
fpm

ppm

%RH

OO

C

CMM
CFM
WBT

DP

: freezes the current reading.

:CO2 unit

2

OO

F

KEY PAD

-Power button

-Long press to enter or exit setup
mode.

-Freeze current reading on LCD

-Long press to review MIN and MAX

-In average mode, press to record
data or start timed recording.

-In setup mode, press to enter data
settings.

-Switch for upper display.

-Long press to enter average mode.

-In average mode, press to select
option of average mode, press again
to return to normal mode.

-In setup mode, press to select
category or increase value.

-Switch for lower display.

-In average mode, press to view
recorded and average reading of
all parameters.

-In setup mode, press to select
category or decrease value.

+ -Disable auto power off.

3

MEASUREMENT

POWER ON/OFF

Press to turn on the meter. The
screen shows full display with blue
backlight on and enter normal mode.
(Model 89161/89171).
For model 89191,it proceeds 30
seconds warm up after turned on the
meter, then it enter normal mode.
Press again in any mode to turn
off the meter.

The meter is preset auto sleep in 20
minutes of inactivity. To disable this
function, hold down and for 2
seconds to turn on the meter while it is
off. It shows “n” on the LCD (see Fig.A)
and goes into normal mode(or 30 sec.
warm up for model 89191) and won’t
turn off itself until is pressed or out
of voltage.

Fig.A

SWITCH DISPLAY

When the meter is turned on, it shows
the current readings of air velocity on
the upper display and air temp. on the
lower(see Fig.B). To switch display of
other measurements, press or .

m/s

OO

C

Fig.B

4

Short press , the upper display will
cycle among air velocity, RH, and
CO2 (89191 only).
And short press , the lower display
cycles among air temp. air volume
WBT(wet bulb temp) DP(dew
point temp)(Fig.C).

%RH

CMM

Fig.C

AIR VOLUME

To measure air volume, it is necessary
to get the outlet dimensions. Go to
Setup mode and input the AREA value
first before taking measurement. (See
page 9 , P2.0)

After AREA setting is completed, press
to switch the display to air volume
and the measured air volume will be
displayed on the lower LCD.

Measure with airflow cones

Two optional airflow cones are
available for using with this
anemometer and are sold as a set.

Square
346x346mm

Round
dia. 210mm

5

To measure air volume with use of an
airflow cone. Just plug on the cone and
the meter will automatically recognize
it and shows a on the display(Fig.C).
Then the meter will calculate the air
volume by the default dimensions
despite of any AREA value is input.

Note:

Be sure the airflow cone is well mounted
and locked tight. (See pic.1)

pic.1

Lock

RH(89171/89191 only)

The capacitive humidity sensor is built
in the center of the vane to measure air
flow relative humidity and is used for
calculating dew point and wet bulb
temperatures.

Press to switch to RH display. It
shows measured RH readings on the
upper display. And it is also possible to
display with RH offset. Go to Setup
mode (see page 9, P3.0) and input
offset value, then the displayed readings
will be the measured data with offset.

6