The HHF1000 series air velocity/temperature meter is
not explosion proof, nor is it intrensically safe. Do not
use for flammable or hazardous gases, or in hazard-
ous areas.
The HHF1000 series air velocity/temperature meter
is intended for use with clean air or Nitrogen ONLY.
Do not use with other gases, as it will produce an
un-calibrated and non-linear display measurement.
In addition, air carrying dust or oil (such as found in
blow/compressor systems that utilize oil) can lead to
coating of the sensor and thus inaccurate readings.
The HHF1000 is a bi-directional device, meaning the air
flow in the forward or reverse direction provides the
same readings.
Installation
1. Install the 9V battery in the battery compartment of
the case. You can remove the battery door to get to
the compartment.
2. Remove the protective cap from the sensor tip.
3. Run a length of straight pipe before and after the
flow sensor probe. The amount of upstream straight
pipe required depends on the type of obstruction
which is immediately upstream of the flow sensor.
Downstream of the flow sensor, in all situations,
run 5 diameters of straight pipe regardless of the
downstream obstruction.
4. Align the sensor probe with the air flow. Make sure
the air flow is perpendicular to the sensor windows.
The score line on the sensor tubing is another way of
aligning the sensor to the flow stream. The score line
starts from the center of the sensor window and as a
result it can be aligned properly.
5. One way of installing the sensor probe into a flow
stream is to utilize a compression fitting such as
Omega’s SSLK-14-14 stainless steel compression
fitting with Teflon ferrule, which allows adjustment
of the insertion depth of the probe.
6. Turn on the power switch and start measuring air
velocity & temperature.
ARTWORK/PRODUCT ART/
DWGS/START HERE ARROW
START HERE
ARTWORK/PRODUCT ART/
DWGS/START HERE ARROW
2
ARTWORK/PRODUCT ART/
DWGS/START HERE ARROW
3
ARTWORK/PRODUCT ART/
DWGS/START HERE ARROW
4
Using This Quick Start Manual
Use this Quick Start Manual with your HHF1000
series handheld air velocity/temperature meter for
quick installation and basic operation. For detailed
information, refer to the User’s Guide (Manual
Number M4979).
General Information
The HFF1000 series handheld air velocity/tem-
perature meter measures and displays air velocity
mass flow and air temperature of clean air flows
in ducts & pipes, while producing very little pres-
sure drop in the flow stream. The sensor design is
based on three RTD elements, one measures the
air temperature and the other two measure the air
velocity.
The HHF1000 displays the air velocity in feet per
minute (FPM), meter per second (m/s), miles per
hour (MPH), and kilometer per hour (Km/h). The
air temperature is displayed in °F & °C. The vol-
ume air flow is displayed in Cubic Feet per min-
ute (CFM) and Cubic meter per minute (CMM).
The sensor probe is 12" long as standard. The 304
Stainless steel sensor tubing is provided with inch
marks for ease of insertion depths. The sensor
probe comes in two different versions as follows:
• Fixed 12 inches long Probe
• Telescopic probe adjustable from 10 to 36 inches.
The unit powers from a 9V battery or a 9Vdc
adapter.
Piping Requirement
Main Operation
Changing Display Engineering Units – You can
change the air velocity Engineering unit display from
feet per minute (FPM) to meter per second (m/s), miles
per hour (MPH), and kilometers per hour (Km/h)
from the keypad (Press SET key). You can change the
temperature display from °F to °C or vice versa by
pressing the DOWN key.
Turn On Display Backlight – You can turn the
LCD backlight on or off by pressing the UP key. The
backlight will turn off after 10 seconds if the UP key is
not pressed again.
High & Low Alarm Set Points – You can set and
enable the high & low alarm set points for the air
velocity as shown in the keypad flow chart. When in
the alarm condition, the HAL or LAL icon will flash on
the LCD.
Display Volume Air Flow – The unit calculates
volume air flow by multiplying the air velocity by
the cross sectional area of the pipe or the duct. The
cross sectional area can be set in the display menu
as shown in the keypad flow chart in square inches
units. The volume air flow is shown in cubic feet
per minute or cubic meter per minute when air
temperature is displayed in Degrees C.
Auto Power Shutoff – You can turn on the auto
power shutoff feature (Default is ON) to save
battery life. If no keys are pressed for 5 minutes,
the unit will shut down to save battery life.
Pressing any key will turn the unit back on.
Keypad Functional Flow Chart
The HHF1000 air velocity/temperature meter
saves the following parameters in the non-
volatile memory, so removing the power will not
affect these settings: High and Low alarm air
velocity set points and status (On or Off), Display
Response time in msec, Cross sectional area in
Square inches, Atmospheric Pressure in mmHg.
NOTE:
NOTE:
Real Time
Go to Max
FPM m/s
°F °C or
Turn On/off
Mode
vice versa
LCD Light
Km/h MPH
Display Max Vel. Go to Min
____________
_____________
Reset Max, Min,
& Temp MAX Icon Mode
Velocity &
Temperature
Display Min Vel. Go to Volume
____________
_____________
Same
& Temp MIN Icon Air Flow Mode
Display Vol. Flow Go to High Alarm ____________
_____________
____________
In CFM or CMM
Mode Velocity
Display High
Go to Low
Enable/Disable
Increment high
Decrement high
Alarm Velocity
Alarm Mode
High Alarm, HAL
Alarm Set Point
Alarm Set Point
Set Point
Velocity
Icon when enabled
Display Low
Go to Display
Enable/Disable
Increment Low
Decrement Low
Alarm Velocity
Response Time
Low Alarm. LAL
Alarm Set Point
Alarm Set Point
Set Point
Mode
Icon When Enabled
Display LCD
Go to Cross
____________
Increment
Decrement
Response time
Sec. Area Mode
Response Time
Response Time
Display Cross
Go to Atmos.
____________
Increment
Decrement
Sectional Area Sq In Press. Mode
Cross Sec. Area
Cross Sec. Area
Display AtPr &
Go to Power
Increment
Decrement
mmHg Icon
Shutoff Mode
____________
Atmospheric
Atmospheric
Pressure
Pressure
Display Power
Go to Real Time Turn On/off
Shutoff
Mode OR Go to
____________
____________
Radio Mode
(Wireless)
Display Radio
Go to Time
Turn On/off
Mode
Interval
____________
____________
Transmission
Display Time
Go to
Interval
Transmission Unit
____________
____________
____________
Transmission ID
Display
Go to Real
Transmitter Unit ID Time Mode
____________
____________
____________
Operation
Press
Press
Press
Press
SET
-
MODE
°F-°C
SET
-
MODE
°F-°C
SET
-
MODE
°F-°C
SET
-
MODE
°F-°C
Model No. Velocity Range FPM(m/s) Description
HHF1001A
0 to 5000 (0 to 25.4) Air velocity/
temperature
meter, Fixed
probe
HHF1001R
0 to 5000 (0 to 25.4) Air velocity/temp
meter with remote
Telescopic Probe
HHF1001A-W 0 to 5000 (0 to 25.4) Air velocity/temp
meter,fixed probe
& wireless
HHF1001R-W 0 to 5000 (0 to 25.4) Air velocity/temp
meter, telescopic
probe & wireless
Recommended
Straight Pipe
Length "A "
T ypical Piping
Remarks
Withou t
V anes
With
Va ne s
15D
15 D
C
losed Branch
A
A
A
A
A
A
A
A
20D
15 D
Elbow . Te e,
Branch Pipe
25D
15D
Elbow , 2 planes
25D
15 D
Long-radius
bend s
30D
25D
15D
15D
Elbow
Long-radius
bend s
40D
35D
15D
15D
Elbow
Long-radius
bend s
20D
15 D
C
ontracting Pip e
40D
20D
Expanding Pipe
Recommend Mete r
Be Installed
Upstream
Regulating,
reducing valves
Ball, check valves
Shut-of f valves
V
aried Section
Va
lves
Fittings in
Tw
o Planes
All Fittings in Same Plan
e
Note: Straight pipe length on the downstram side to be 5 pipe diameters minimum .
Note: D – Pipe internal diameter
.
A
A
