AZ Hengxin instrument 8952 Remote Hot Wire Anemometer Instruction Manual

OPERATION MANUAL
HOT WIRE ANEMOMETER

8952 Remote Hot Wire Anemometer

Model : 8952

OPERATION QUICK GUIDE

Step1
Install 4pcs AAA batteries and press power key to turn meter on and start to measure. Step2
Recognize the air IN marking from sensing head and telescopic tube
IN Air IN direction Step 3
Align the sensor to airflow path through correcthandling duct cross section Stepd 4
Moving telescopic tube to measure speedat multiple duct depth

INTRODUCTION

Thank you very much for purchasing this hot wire anemometer. The meter is designed as battery operation for taking air velocity, volume and temperature.
The robust air flow & temperature sensors are builtin the external probe. The compact probe head is ideally designed for duct airflow. Duct temperature is compensated and has limited influence on air flow data.
This anemometer is a micro processor- based design. Amust device for HVAC engineers use.

Features :

• One of the most robust hot wire sensors on market to get accurate value and long sensor life time.
• 8mm dia. probe head with 1M long telescopic tube. Enclosed with O-ring to mark the depth of duct.
• Telescopic tube with alignment marking to show the correct AIR IN direction for accurate measuring.
• Non-slip ergonomics rubber grip
• Metric& Imperial selectable
• cfm, Iis, cmh, cmm four different air volume units to select from
• Low battery indicator
• Display Max/Min/Time Avg./Point Avg.
• Hold function freezes current readings
• Sleep and non-sleep selectable
• Powered by 4 AAA batteries
• Back light for dark places

MATERIAL SUPPLIED

This package contains:
The meter x1
Probe (telescopic tube & rubber grip) x1
Battery x4 (AAAsize )
Operation manual x1
O-ring x1pack
Magnet x 1
Hard carry case x1

REMINDER

Important:

1. This meter is ideally designed for duct airflow measurement. Accurate & robust sensors are equipped. Nevertheless, Avoid o hit the probe head may extend the probe life time.
2. Correctly face the “IN” mark to the wind source for accurate result.

LCD & KEYPAD

Green text means press longer time

1. SET
   -Press to turn on the meter. 5 seconds warm up time and then in auto power off mode (APO)
   -Press to turn off the meter.
   -When meter is on, pressing this key more than 5sec. to enter setup.
   -Auto power off after 10 mins keypad inactivity.
   -Non-sleep mode is also available.
2. MODE
   -Press to select different modes. The upper display remains as current air speed, the lower display can be air volume or temp.
   -In Max/Min mode, the upper display is current air speed, the lower display can be maximum or minimum air speed, air volume or temperature.
   -In time/point average mode, the upper display remains as cumulative time or point, the lower display can be average air speed, air volume or temperature.

3. -Press once to enter time average mode. The maximum time is one hour.
   -Press twice to enter point average mode. The maximum pointis 999 points
   -Press key longer time to reset the max. and min. Value.

4. -Press once to freeze the reading.
   -Press twice to enter maximum mode.
   This value counts from power on or from previous reset moment.
   -Press again to enter minimum mode.
   This value counts from power on or from previous reset moment.
   -Press one more time to return to normal display.
   -In setup, press this key to adjust.

5. -In time/point average mode, press to record value or pause recording.
   -In setup, press this key to adjust.

6. -In average and setup status, press to quit and return to normal status.
   -In duct length (L) and width (W) setting of setup mode, press to switch from L to W.

PROBE/POWER SUPPLY

1. probe is permanently fixed with meter.
   Not changeable.

2. This meter is powered by 4pcs AAA batteries.
   Inserting batteries into battery compartment with correct polarity and in good contact.

LOW BATTERY

Battery indicator “ “will display on LCD while battery power is low. Suggest to change the batteries.

TELESCOPIC TUBE

Laser etched telescopic tube is not easy to read in dim places, using o-ring to mark determined depth is faster. You can move the depth marking easily.

OPERATION

POWER ON/OFF

1. Press “ SET *to power on meter.
   5 seconds warm up,tige and then in auto power off  mode (APO). –
   Press again to power off.

2. Auto power off after 10 mins keypad inactivity.

3. Press“ SET “& “ at the same time to power meter on and keep itin non-sleep mode. APQ will not display on LCD.

BACKLIGHT
Press any key may activate backlight for 10 seconds. The feature is useful while operating meter in dim places.
SETUP
Setup basic parameters to customize this meter fitting your application. Please see details in page 9
MODE
This meter provides three parameters: velocity, volume and air temp. Press “MODE * to switch in any status you are in.
In normal status
In MAX or MIN statusIn TavG/PAVG status HOLD/MIN/MAX
This meter allows you to freeze current reading or check maximum and minimum reading. Press “ “to have this feature.

The maximum and minimum reading is counted from power on. You can press “Reset” longer time to clear up and re-count.  AVERAGE – time average

Press “ ” once to choose time average feature. ‘oO * icon appears on LCD.
Press “ ” tocount, press “ ” again to pause. To continue, press “ ”  to quit, press “ ” twice to returh to normal status. Reset
The upper display is cumulative time, max.
Time is 59:59. The lower display is average value. Use “mobe” key to switch to different parameter.
. AVERAGE -p oint average.
Press “ ” twice to choose point average feature. “ ” icon appears on LCD.
Press “ ” to count, to continue, press to quit, press “ ” once to retdrn to normal status.
The upper display is cumulative points, max.is 999 points. The lower display is average value. Use “MODE” key to Switch.

SETUP

When the meter is on, hold down SET for mor than 5 seg 4 enter setup mode.
Press “ or ” to selectand press “ ” enter.
To exit setup, press few in P1~ P4 and it returns ESC to normal mode.

P1:DUCTAREATYPE
Go into P1 for setting the areatype of duct. The options are Diameter (D),
Area (A) and Length Width (L W).
Press ” ” or “ ” to choose P1.Then, press “ SET” to enter and select the type youneed through pressing “ ” key.
Once you decide, press “ ” as confirmatjon and enter to P2. You can also press” ” as confirmation and quittonoial status. P2: AREA VALUE INPUT
Go into P2 for area value input.
The options are:
0~9999 cm’ or inch’ for Area (A) option
0~99 cm or inch for diameter (D) option
0~99¢cm or inch for LW option
Press “ ” to choose P2. Then, press “ SET” to enter and start to adjust the value to what you need.
Press ” ” and ” ” to adjust value more or less. To adjust different decimal, press “ “to choose.
After setting, press “ SET” confirm

If the typeis LW, press “ ” to switch from Lto W.
Press “ ” ang to adjust v, l0¢ value more or less. To 3djust different decimal, press “ ” to choose.
After setting, press “ SET” to confirm
P3 UNIT
Go into P3 for unit selection.
The options are:
metric: m/s, cmand °C
*Imperial: ft/m, inch and °F
Press “ ”    to choose P3. Then, press “ SET” enter and choose the unit you need through pressing “ SET” .
Once you decide, press “ ”    as confirmafign and enter to P4. You can also press “ ”  confirmation and return tonormal status.

P4: WIND VOLUME UNIT
Go into P4 for wind volume unit selection .The Options are cmh, cmm, cfm and|/s.
Press “ ”   to choose P4. Then, press “ SET” to enter and choose the unit you need through pressing “ SET” .
Once youdecide, press “ ”   as confirmafign and enter to P1. You can also press “ ” as confirmation and quitto norm’al status.

TROUBLESHOOTING

1. Power on butno display
   a)Make sure the time of pressing key is more than 0.1 second.
   b)Check the batteries are in place and in good contact with correct polarity.
   c)Replace a new battery and try again.
   d)Move away the battery for one minute and putback again. Try again.

2. Display disappear
   a)Check whether the low battery indicator displayed before Display disappear, if yes, replace a new battery.
   b)Turn on the meter by pressing “ “+ “ SET”  key to disable auto power off function for long time using.

3. E2
   a)The value is underflow.

4. E3
   a)The value is overflow.

5. E4
   a)The original data that is relative to this value error.

6. E31
   a)Temp. related circuit error.

7. E32
   a)memory IC error.

SPECIFICATION

Below 100 ftim:0.1, above 100 ftim:1
Wind speed accuracy| +/-(5%), of reading#0.1) m/s
+/-(5%) of reading+20) ft/m
Air temp. range| -10.0~50.0°C (14.0~122.0° F)
Air temp. resolution| 0.1°C0.1° F
Air temp. accuracy| +/-1.0°C , +/-1.8°F
Wind speed response time| 0.5 second (typical)
Temp. response time| 60 seconds (typical)
LCD update| every second
Air volume display| 0 to 99999
Air volume resolution| 0.1(0 t0 9999.9) or 1 (10000 to 99999)
Air volume unit| cmm, cmh, l/s, cfm
LCDsize| 26(H)x44(W)mm
Operating temp.| 0~50°C
Operating RH%| Humidity<80%
Storage temp.| -10~50°C
Storage RH’ Humidity|  < 90%
Dimension{mm)| 175x70x33 (meter)
Probe| 8mm diameter
Telescope tube 96cm (38 inch) extended.| 26.5cm (10 inch) storage
Weight| 331g
Battery| 4pcs AAA batteries
Standard Package| Meter with built-in hotwire probe/Battery/
Magnet/Manual/O-rings/Hard carry case

RETURN AUTHORIZATION

Authorization must be obtained from the supplier before returning items for any reason. When requiring a RA (Return Authorization) , please include data regarding the defective reason, the meters are returned along with good packing to prevent any damage in
shipment and insured against possible damage or loss.

WARRANTY

The meter is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase. This warranty covers normal operation and does not cover battery, misuse, abuse, alteration, tampering, neglect, improper maintenance or damage resulting from leaking batteries.
Proof of purchase is required for warranty repairs. Warranty is void if the meter has been opened.

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