Advertisement
Pouch and Lanyards
A neck lanyard and a small pouch have been provided. To install the lanyard, feed
the thin end of the lanyard around the metal post on the battery door (as shown
in diagram). Feed the thick end of the lanyard through the loop on the thin end.
Using tweezers can help.
Battery Installation
Use only AAA batteries. Install batteries as indicated on the battery door. After installing the batteries,
the Kestrel 4300 will automatically start in the Date and Time setting mode. (See Date and Time Setup
below.) Custom settings and chart data will be saved during a battery change; only the date/time
and MMA values will be lost.
Turning the Kestrel Meter ON and OFF
To turn the Kestrel Meter ON, press
the button. To turn the Kestrel Meter OFF, hold the
for two seconds. Or, press the
button, then press the
(Note: your unit will continue to automatically store data when the power is turned off.) When first
turned on, the Kestrel Meter will display a splash screen displaying the model number, the battery
indicator, and the code version. This battery indicator will indicate the percentage of battery life
remaining, which is helpful in preventing unexpected dead batteries.
Date and Time Setup
The first time that you turn on your Kestrel 4300, as well as after a battery change,
you will need to set the date and time. The Introduction Screen will appear for 3
seconds, followed by the Date/Time Setup Screen. Press the
scroll through the settings. Press the
and
options. After entering the date and time, press the
Setup. Then press the
button again to exit the Main Setup Menu.
Navigation of Charts
The Kestrel 4300 is capable of storing up to 1800 data points for each
measurement. To review the data, press the
A cursor will appear on the most recent data point. Press the and buttons
to scroll through the data points. The date and time at which the data was
stored will be displayed at the bottom of the screen, and the data value will
be displayed at the top of the screen. Hold down the
quickly through the data points.
Press the
or
button to review the data for the other measurements. Please note that the cursor will remain
at the same date and time. If new data is stored while viewing chart data, the entire chart will shift left with the
new data point charted on the right. The cursor will not shift with the chart.
Press the
button to return to the Chart Mode.
Evaporation Rate
The Kestrel 4300 will display the evaporation rate, based on the instantaneous air velocity, relative humidity,
ambient temperature and concrete temperature. The 4300 eliminates the need to reference the American
Concrete Institute issued charts.
To measure the evaporation rate, you will need to input the concrete temperature. The Kestrel 4300 does not
measure this, you will need to use a separate temperature measuring device to obtain the concrete temperature.
Once you have measured the concrete temperature, to enter the concrete temperature into the Kestrel 4300,
scroll to the evaporation rate screen, then press the
concrete temperature. Press the
button again to exit the setting screen.
To accurately measure the evaporation rate, a few precautions must be taken. The readings must be taken into the
wind, and approximately 20 inches above the concrete. Additionally, it is extremely important that the temperature
reading is not taken in direct sunlight. You may need to shade the Kestrel Meter if the area is not normally in the
shade. For example, hold a notebook or piece of plywood above the Kestrel so that it is shaded while taking the
button with the word OFF highlighted.
and
buttons to
buttons to scroll through the setting
button to exit the Date/Time
Value
button while viewing a chart.
Chart
Cursor
Date & Time
or
button to scroll
and
button. Now you can use the
Measurements use
Wind Speed
Temperature
Wind Chill
Humidity
Evaporation Rate
H I
Heat Index
button
D P
Dew Point
WB
Wet Bulb
Barometric Pressure
Altitude
D
Density Altitude
5
readings. (Be careful not to obstruct the air flow while doing so.) Failure to shade the unit may cause inaccurate
Evaporation Rate readings, and will not meet the criteria in the ACI 308.
Find the direction that the wind is blowing from and hold the Kestrel 4300 into the wind. You may want to scroll
up to the Current Wind Speed Screen to find the direction that the wind is strongest. Hold the unit vertical, and
rotate it slightly to find the maximum wind speed. Then scroll back to the evaporation rate screen and hold the
Kestrel 4300 facing that direction. The Kestrel 4300 will automatically display the instantaneous evaporation
rate.
Since the wind rarely blows at a constant rate, you may notice that the evaporation rate fluxuates. For the most
accurate evaporation rate readings, press the > button to enter the averaging screen. This allows you to average
the evaporation rate over a set time. The ACI recommends averaging for 6-10 seconds. On the average screen,
press the – button to start the averaging. Position the Kestrel into the wind, 20 inches above the concrete and
shaded, and count 6-10 seconds, then press the – button again to stop. The screen will display the average and
minimum evaporation rate readings. To clear the data, press the – button again. Press the < button to return to
the current evaporation rate screen, or the > button to view the chart.
Note that you may change the units of measure for Evaporation Rate under the Main Setup Menu (see the Main
Menu setup section instructions). Choices are lb/sf/h and kg/sm/h.
User Screens
The Kestrel 4300 has three User Screens which can be customized to display three current
measurements simultaneously. (See the Main Menu Setup section for more information.)
Max/Avg for Wind Speed & Wind Chill
The Max/Avg values for the Wind Speed values are measured independently from the stored and charted data.
This allows the user to start and stop the averaging period in the most appropriate manner for their application.
buttons to adjust the
Averaging on all wind-related values (Wind Speed and Wind Chill) will be started and stopped together.
While viewing the Min/Max/Avg screen for any of these measurements, hold the unit into the wind, and press
the - button when the screen displays "—average" to begin collecting data for all measurements, and again
when the screen displays "—stop" to stop collecting data and hold the values on the display. Press the - button
when the screen displays "—clear" to clear the data. This routine will work simultaneously for all measurements,
regardless of which one is displayed while the routine is run. The Max/Avg for these wind values will not affect
7
any other Min/Max/Avg or stored data.
The Kestrel 4300 is set up to display 11 Measurements (some are calculations)
in 3 Modes. The Measurements are listed to the left with their corresponding
screen icon. In addition to these Measurements and Modes, there are also
3 User Screens, which simultaneously show 3 current measurements, and
the Date & Time Screen, which gives the current date and time. Use the
and
buttons to scroll through the various Measurements, followed by
the 3 User Screens and the Date/Time Screen.
The Modes are displayed below. Use the and buttons to scroll through
the various Modes. From any mode, you may still scroll to a different
Measurement by pressing the
and
Current - displays the instantaneous reading
Min/Max/Avg -displays the Minimum/Maximum/Average readings from
stored data. If there is no stored data, the values will be displayed as --.-.
Chart -displays a graphical representation of up to 1800 stored data points
foreach measurement. If there is no stored data, the axis will appear, but the
will be blank. (See the following page for information on Chart Navigation.)
Modes use
Current
Min/Max/Avg
buttons.
Chart
6
8
Advertisement
