Az-instrument 8902 Bedienungsanleitung

OPERATION MANUAL

Model:8903/8904/8906

ANEMO-PSYCHROMETER

BTU-PSYCHROMETER

Model:

8902

8911

8912

Thank you very much for purchasing

this Anemo-Psychrometer.

This unique meter design with 7 H.V.A.C

&R must parameters in 1. The meter

designed as battery operated for Humidity

,Air temp., Dew Point, Wet Bulb, Air

Velocity, Air Volume & BTU (8912).

The sensor is built in the remote fan and

is specially protected by tunable cap.

While in operation, please turn on the cap

to get accurate temperature and humidity

reading.

The psychrometer is a micro processor-

based design. A must device for HVAC

engineers use. No need to whirl the

meter or refer to the chart. Easy to get

wet bulb, dew point and BTU(8912)

quickly!

Features :

INTRODUCTION

Big LCD digit display

Professional remote vane

Metric& Imperial selectable

Handheld size, easy to carry

Low battery indication

Fast response &

Tripod mountable for long time use

Dew Point calculated in seconds

Wet Bulb calculated in seconds

Microprocessor circuitry for reliability

Sleep and non-sleep selectable

adaptor

Back light for dark places

Accurate reading

Tunable cap to protect sensor

Up to 8 velocity memory (only 8911)

The meter x 1

Remote vane x1

Battery x 4 (AAA size )

Operation manual x1

Hard carry case x1

This package contains:

MATERIAL SUPPLIED

REMINDER

1. Rotate the cover before measurement

to ensure the measured data is correct.

Important:

AC to DC 9V adaptor

RS232 cable & CD

Optional accessory:

2. The fan and meter are sold as a kit and

are well calibrated.

When you need to replace the fan,

please see page 16 for the details of

fan replacement.

CONTROLS AND INDICATORS

LCD DISPLAY

DPWBA VOLVG CAPMAXMIN

%RH

m/s ft/m

cfm

Btu/hKw

M/m

REC HOLD WAITSTART

LDWinch

cm2

AREA

KEY PAD

1.Power :

-Turn on the meter with auto-sleep mode.

-Turn off the meter at any mode.

-When the meter is off, pressing more

than two sec. to enter units selection.

2.MODE:

-Pressing to select different modes.

Temp. DP WB RH Velocity.

-Pressing longer to select VOL and CAP.

3.ENTER:

- To confirm the setting & calibration.

4.Mx/Mn/Up :

-Pressing to view MAX/MIN/AVG value.

-Press to select the value of each digit

in cycle.

5.REC/START:

- In velocity mode, pressing this key to

store the current velocity reading into

memory (8911only)

- To start measuring volume or capacity

(8912 only) without waiting.

6.HOLD/Down :

- In basic modes pressing this key to

hold the current reading, then pressing

this key again to unlock the holding.

- Pressing to select the setting digit.

7.Power + :

- When the meter is off, pressing more

than two sec. to enter non-sleep mode.

8.Power + + :

- Pressing more than two seconds to

enter RH calibration mode.

9.ENTER+ :

- Pressing to turn on/off the backlight.

%RH

Ft/m

cfm

Btu/h

%RH

m/s

M/m

POWER ON/OFF & UNIT SELECT

Press to turn on the meter with

auto-sleep mode. Press again to turn

off the meter at any mode.

cm inch

When in unit selection mode, press

or to select the unit, then,

press to save and meter will be

powered on automatically.

When the meter is off, pressing

more than two seconds to enter units

selection mode.

BASIC MEASUREMENT

Please refer to below table of the basic

measured parameters of each model

8902 89128911

Basic Measure

Air temp.

Humidity

Dew Point

Wet Bulb

Air Velocity

Vel with

average

Air Volume

Capacity

Extend Measure

8902 89128911

Sum of

Volume

Sum of

Capacity

m/s

REC

When power on, the air temperature

is the default value to show on the LCD.

To review the other basic parameters,

just press key then each parameter

will be display in turn.

Velocity with memory (8911 only)

In velocity mode, press to store

value into memory. A record number will

be displayed on the top-left of the LCD.

The max. record is 8 points.(Fig.A)

While in basic mode, press for over

2 seconds to enter extend measurement

mode. For 8912, also press key to

switch between volume and capacity.

(Fig.A)

MAX

%RH

DP MIN

From the meter is powered on, air temp.,

dew-point, WBT, humidity & velocity will

be temporarily saved in meter, so, to

press could view the average value

minimum value and maximun value in

turns. Press again to back to normal

mode. The data will be re-counted once

the meter is powered off and turn on

again.

MAX, MIN & AVG.

When in Max./Min./Avg. mode, pressing

key to display the parameters you

need. (Fig. B, Fig. C)

(Fig. C)

(Fig. B)

Checking velocity memory(8911 only)

While the 8911 is in velocity mode and

with record in memory (up to 8 points),

pressing key to review average

value (at moment, the meter is in hold

mode).

Pressing key to view the minimum

/maximun value of memorised velocity

in turns.(Fig.D & Fig. E)

Pressing key again to exit above

average/ min. /max. review and back to

normal.

The memorized record will be deleted

after the meter is powered off and turn

on again.

AIR VOLUME: OUTLET SIZE

While in normal mode, long pressing

key to enter air volume mode.

To measure the volume, the outlet size

need to be input first. There are three

choice to enter the size:

- Length & Width:

This is the default choice. Press

key to select the setting digit first,

then press key to select the

appropriate value ( 0~9). When select

the value, the value will show from 0

to 9 in cycle. After entering length,

short press to enter width setting.

Repeat the procedure of length setting,

then short press again to finish

the size setting and enter next step.

(Fig.F)

AVG

Ft/m

HOLD

MIN

Ft/m

HOLD

(Fig.E)

(Fig.D)

- Diameter:

While in default outlet setting mode

(length), pressing key for over

two seconds to choose diameter setting.

Press key to select the setting digit

first, then press key to select the

appropriate value ( 0~9)

After selection, short press again

to finish the size setting and enter next

step. (Fig. G)

- Area:

While in diameter setting mode,

pressing key for over two seconds

to enter area setting.

VOL

AREA

(Fig. F)

(Fig. G) (Fig. H)

AIR VOLUME: MEASUREMENT

After short pressing to finish and

leave size setting, there are 20 second

waiting time for you to put the vane

to the grill.

Press key to select the setting digit

first, then press key to select the

appropriate value ( 0~9)

. After selection, short press again

to finish the size setting and enter next

step. (Fig. H)

Note: Refer to page 13 for the range

of each size input mode.

During the 20 second waiting time, the

count down number displayed on top-

left corner and meter also beeps when

time is up.(Fig. I)

If no need to wait for 20 seconds, just

pressing key to start measuring

the volume right away.

VOL

WAIT

m/s (Fig. I)

After starting measuring the volume,

the meter will automatically count the

volume for 60 seconds to give a average

value. (Fig. J) During this 60 second

time, the vane should move along the

whole outlet to cover each area so the

measured data could be more accuracy.

The count down number displayed on

the top- left corner as a reminder and

meter also beeps when 60 sec is up.

VOL

M/m

(Fig. J)

VOL

AVG

M/m

(Fig. K)

START

After time is up, 60 seconds average

volume will display on the LCD as Fig K.

After measuring more than one outlet

volume, you could press key to

review the sum of all outlets. Pressing

key to review the last outlet volume.

If there are more than one outlet, you

could press key again to repeat

the procedure from outlet size input.

You could measure outlet as many as

you need.

CAPACITY: OUTLET SIZE

While in normal mode, long pressing

to enter air volume, then short

press to enter capacity mode.

To measure the capacity, put the vane

on the Inlet, then press to count

the 60 second average Temp. & RH%

( Fig. L)count down will show on left-top

corner of LCD and meter beeps after 60

second is up. Then, the meter enter

outlet size setting automatically. (Note 1)

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