E Instruments AQ COMFORT Installation instructions manual

INSTRUCTION & OPERATIONS
MANUAL
AQ COMFORT
PORTABLE MULTIFUNCTIONAL
INDOOR AIR QUALITY MONITOR
E Instruments International LLC
402 Middletown Blvd, Suite 216
Langhorne, PA, USA 19047
Phone [phone]
Fax [phone]
[e-mail]
www.E-Inst.com

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TABLE OF CONTENTS
CHAPTER 1 .................................................................................................................... 3
TECHNICAL SPECIFICATIONS & SAFETY GUIDELINES ........................................... 3
CHAPTER 2 .................................................................................................................... 7
INTRODUCTION ............................................................................................................. 7
CHAPTER 3 .................................................................................................................... 9
BASIC INSTRUMENT OPERATION .............................................................................. 9
CHAPTER 4 .................................................................................................................. 12
POWER REQUIREMENTS ........................................................................................... 12
CHAPTER 5 .................................................................................................................. 13
SENSORS -TECHNICAL .............................................................................................. 13
CHAPTER 6 .................................................................................................................. 16
AQ COMFORT SETUP ................................................................................................. 16
CHAPTER 7 .................................................................................................................. 19
INTERNAL DATA STORAGE ...................................................................................... 19
CHAPTER 8 .................................................................................................................. 21
WIRELESS REMOTE PRINTER................................................................................... 21
CHAPTER 9 .................................................................................................................. 23
ZERO & SPAN CALIBRATION .................................................................................... 23
CHAPTER 10 ................................................................................................................ 30
AQ GAS SOFTWARETM ............................................................................................... 30
CHAPTER 11 ................................................................................................................ 36
MAINTENANCE ............................................................................................................ 36
CHAPTER 12 ................................................................................................................ 38
AQ COMFORT OPTIONS ............................................................................................. 38
CHAPTER 13 ................................................................................................................ 41
BASIC TROUBLESHOOTING ...................................................................................... 41
CHAPTER 14 ................................................................................................................ 43
REPLACEMENT PARTS .............................................................................................. 43

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CHAPTER 1
TECHNICAL SPECIFICATIONS & SAFETY GUIDELINES
AQ COMFORT - AIR QUALITY MONITOR
1. PHYSICAL:
Material: Blue ABS plastic case
Dimensions (monitor): 8.6 x 3.9 x 2 inches: 220 x 100 x 52 mm (H x W x D)
Weight: (monitor): 1.6 lbs. / 0.725 kg
Shipping Dimensions & Weight (monitor & all accessories): 8 lbs. / 3.6 kg
20” x 19” x 9” / 50.8 cm x 48.2 cm x 22.8 cm
2. POWER:
12 Volt, 8 AH rechargeable Li-Ion battery pack
Operating time: 8 – 12 hours
110/240 VAC input, 12 V/2.5A fast charger
Charging time: 3 hours maximum
3. DISPLAY:
2.6” x 1.4” 128 x 64 graphic, chip on glass (white backlit) LCD display.
Rotating display depending on monitor case orientation
Small and large fonts, plus inverted background color for help messages
Battery condition & charger operation indicator
4. WIRELESS REMOTE PRINTER (Optional)
2” high resolution, high speed, graphic thermal printer, with charger, prints:
A. current set of data
B. stored data
C. periodic data printouts
D. calibration history and external messages
5. INTERNAL INSTRUMENT PUMP
Continuous Air sample pump: high quality diaphragm pump with long life motor
6. MEMORY STORAGE
1000 Internal memory storage tags, each tag stores one complete set of data
7. COMMUNICATIONS
Bluetooth wireless: Class 1 (100m)
USB Cable
8. SOFTWARE
AQ GAS™ Windows PC Software

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SENSORS
1. AIR QUALITY SENSORS – ELECTROCHEMICAL
SENSOR
RANGE
RESOLUTION
ACCURACY
CARBON MONOXIDE
(CO)
Std Range
0 - 200 ppm
0.1 ppm
+/- 1 ppm of rdg,
+/- 0.2 ppm
*Note: All Accuracies indicated above are under Laboratory Conditions
2. AIR QUALITY SENSORS – NON-DISPERSIVE INFRARED (NDIR) SENSORS
SENSOR
RANGE
RESOLUTION
ACCURACY
CARBON DIOXIDE
(CO2)
Std
Range
0 – 5000 ppm
1 ppm
2% of Rdg.
+ 10 ppm
4. OTHER SENSORS
SENSOR
RANGE
RESOLUTION
ACCURACY
Temperature Type K (T1)
0 – 2000 ºF
(0 – 1100ºC)
0.1 ºF
(0.1 ºC)
+/- 0.5 ºC 0-100ºC
+/- 5% >100ºC
Ambient
Temperature
-40 – 257 ºF
(-40 – 125 ºC)
0.1 ºF
(0.1 ºC)
+/- 0.4 ºC (0-60 C)
Relative Humidity
0 -100 %
0.1%
+/- 2% RH
Pressure
+/- 80 mbar
0.1 mbar
+/- 2 mbar
Air Velocity
0 – 300 ft/sec
1 ft/sec

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MODEL AQ COMFORT – SAFETY GUIDELINES
This section provides general rules which must be followed for product safety, avoiding
personal injury, damage to equipment and preserving the manufacturer’s warranty.
Please take care to carefully observe the following instructions.
A. PRODUCT SAFETY INSTRUCTIONS:
 Do not operate the instrument outside of the parameters specified in the
technical specifications
 Do not use or store the instrument together with any solvents
 Do not block the two (2) exhaust ports in the back of the instrument
 Do not expose the monitor to extreme hot or cold temperatures outside of
the stated range in this manual
 Do not abuse the charger cord. Do not use power cord for carrying,
pulling. Keep cord away from heat, oil, sharp edges, or moving parts.
Damaged or entangled cords can increase risk of electric shock
 Only use the supplied, appropriate AC Charger
 If the monitor enclosure is ever unscrewed and taken apart, avoid over-
tightening the screws that hold the two main enclosure pieces together.
 Do not store or operate in dusty, dirty areas
 Always use the monitor with care and use the instrument properly
 Do not use force when disconnecting and reconnecting the Black external
Temp, RH and Pressure Sensor (see photo below)
 Do not use instrument in the rain or high moisture areas to prevent water
droplets on the black external Temp, RH, and Pressure Sensor.
 Remember to have the monitor checked and calibrated at least once a
year to ensure sensor accuracy and compliance with existing standards
 DO NOT LIFT OR HANDLE THE INSTRUMENT BY THE BLACK
EXTERNAL TEMP, RH, PRESSURE SENSOR HOUSING! See photo
below
NOTE: Please take special care when performing Span Calibration of the
monitor. You cannot revert back to the factory setting after any adjustments!
NOTE: CO2 should ALWAYS be Calibrated or Zeroed with a Cylinder of ZERO
AIR. Do Not Use Ambient Air for CO2 sensor calibration.

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B. ELECTROMAGNETIC COMPATIBLITY
Complies with EN61326-1, Portable Equipment
The E Instruments AQ COMFORT Indoor Air Quality Monitor is a battery
operated Portable device designed to be used by a qualified engineer/technician to
make measurements in buildings and residential facilities. For long-term testing, you
may operate the unit connected to the supplied charger by carefully following the
product safety instructions in Section A above.
C. ESD Protection
In extreme cases or abnormal applications, Electrostatic Discharge can
potentially cause serious and immediate damage to the electronic circuits of the
instrument.
D. BATTERY DISPOSAL & RECYCLING
Recycle all applicable material properly. Take faulty/depleted batteries to
proper collection/recycling centers
Dispose of batteries and the monitor according to statutory regulations.
Do not dispose of with regular household items. After the monitor’s useful
life, please return to your local authorized E Instruments’ distributor or
send back to E Instruments directly. We will ensure that it is disposed of
in an environmentally friendly manner

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CHAPTER 2
INTRODUCTION
A. UNPACKING THE INSTRUMENT & PARTS IDENTIFICATION
E INSTRUMENTS AQ COMFORT kits (excluding AQ Comfort-1) include as standard
equipment:
• IAQ Monitor Model AQ COMFORT with CO2, Temp, %RH, Dew point Temp,
WBT, Differential Pressure and Differential Temperature
• Internal Continuous Sampling Pump
• Battery charger / AC adaptor for the monitor
• USB Thumb Drive includes:
• Instruction Manual
• Internal Wireless Bluetooth
• Calibration Certificate
C. PROPER SAFE USE
1. Follow all the instructions in the AQ Comfort manual.
2. Do not block the two (2) exhaust ports in the back of the instrument housing.
3. Do not expose the monitor to extreme temperatures outside the stated range
4. Do not store or operate in dusty, dirty areas
5. Do not use instruments in the rain or high moisture areas to prevent water
droplets on the external Temperature and RH Sensor.

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LIST OF ABBREVIATIONS
PARAMETERS
CO2 Carbon Dioxide – NDIR measurement
CO Carbon Monoxide
Ta Ambient (room) Air Temperature
RH Percentage of Relative Humidity
DPt Dew Point Temperature
WBT Wet Bulb Temperature
VEL Air / Gas Velocity (measurement with optional pitot tube)
∆P Differential Pressure (with Velocity Probe turned OFF)
T1 Thermocouple Type K Temperature (T1 Input)
BAT Battery Life / Voltage
NA Parameter Not Available
UNITS
PPM Parts (of pollutant) per million
°F Temperature Measurement in Fahrenheit
°C Temperature Measurement in Celsius
"WC Inches of water (pressure measurement)
mmHg Millimeters of Mercury (pressure measurement)
"Hg Inches of Mercury (pressure measurement)
PSI Pounds per Square Inch (pressure measurement)
mmWC Millimeters of water (pressure measurement)
kPa KiloPascals (pressure measurement)
mbar Millibars (pressure measurement)
FPS Feet per second (gas / air velocity measurement)
MPS Meters per second (gas / air velocity measurement)
CMM Cubic meters per minute (gas / air velocity measurement)
CFM Cubic feet per minute (gas / air velocity measurement)
V Voltage (battery)

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CHAPTER 3
BASIC INSTRUMENT OPERATION
The AQ COMFORT is operated by the 9 button keyboard located on the front of the
monitor.
 The POWER key turns the instrument on and off.
 The MEASURE key shows the currently measured parameters.
Displays the monitor’s currently measured data in either of two (2) fonts:
A. Small fonts (all data displayed simultaneously plus range indicated, battery
condition and time)
B. Large fonts (four data parameters displayed simultaneously)
Note: The AQ Comfort allows the user to ZOOM in and out of the screen by
changing from Small to Large Fonts using the MEASURE key. Press Measure key
again to zoom back out.
 Four (4) keys will bring up separate Menus: SETUP, CALIB, STORE, & PRINT.
SETUP
Controls all customization parameters, such as measurement
units, for the monitor
CALIB
Controls calibration settings and zeroing of the monitor’s
sensors.
STORE
Controls operation of the monitor’s internal data storage
PRINT
Executes print commands for the monitor’s optional remote
Bluetooth printer
 The menus are navigated with the UP, DOWN, LEFT, RIGHT, & OK keys.

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INSTRUMENT OPERATION OVERVIEW
AQ COMFORT STARTING INSTRUCTIONS
1. Turn the AQ Comfort on by pressing the POWER key. The instrument’s internal
pump will immediately turn on and the E INSTRUMENTS logo will appear. The
instrument will begin to draw in air from the center SAMPLE IN inlet “A” at the
bottom of the unit.
2. If applicable, attach the optional probe and sampling line to the monitor.
3. Press the MEASURE key to view the Main Measuring Screen including
ambient temperature, barometric pressure, relative humidity and dew point. The
toxic gas readings you selected in your kit are also displayed: CO2 & CO (CO will
appear only if sensor was installed).
4. At initial startup, allow the CO2 sensor up to 1 minute to warm up and stabilize.
The MEASURE key allows the user to toggle/zoom
between a small font and a large font screen.
The battery icon is displayed in the middle of the bottom
line of the display. Its condition is marked by the shaded
fraction of the icon. If the unit is powered by the battery
charger a small “plug” icon will replace the battery icon.
NOTE: When connecting the battery charger to the
monitor make sure that the “plug” icon appears on the
MEASURE screen. This ensures a proper power
connection and charging of the batteries.
5. If you are using the monitor for the first time, press the
SETUP key to set the appropriate parameters
(i.e.: measurement units) for your application. See
Chapter 5 for an explanation of each parameter.
CO2: 920PPM
CO: 0PPM
Ta: 79.1°F
RH: 46.9%
DPt:57.0°F ∆P: 0.0mb
_____________________
Sampling 12:45:00
NOTE: Depending on the options
enabled for your AQ COMFORT some
of the entries in one or more of the
displays shown above will be blank if
that option is not available.
APR 1 ‘14 12:45:00
Temperature Units: F
Measure Units: PPM
Pressure Units: inWC
Pumps: AUTO 750cc/m
Velocity Probe: OFF
Velocity Units: FPS
Duct Size: 0 in2
Display Contrast: 24
Baudrate: 115 kbps
Version: 1.02Li
Battery Charger Connected
Battery Empty
Battery Full

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6. All sensor readings shown on the screen indicate ambient measurements. To
ZERO the gas sensors, please see Calibration Chapter 9 of this manual.
7. To obtain a printout of the data displayed, press the PRINT key.
The cursor (reverse color) will point to:
Print Test Record
Press the OK key to execute a printout on the AQ Comfort’s optional Bluetooth
remote printer.
8. Measured data can be stored in the monitor’s internal memory. Please refer to
Chapter 7 for more details about data storage.

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CHAPTER 4
POWER REQUIREMENTS
The E Instruments AQ COMFORT Indoor Air Quality Monitor is a battery
operated Portable device designed to be operated by a qualified engineer/technician to
make measurements in buildings and residential facilities. For long-term testing please
carefully follow the product safety instructions in Chapter 1.
Power is supplied by a Li-Ion rechargeable battery pack. The battery pack will supply
power to the monitor for about at least 8 hours of continuous operation.
A 110 – 240 Volt AC charger having a 12 Volt DC / 2.5A output is supplied with the
instrument. The battery charger will fully charge the battery pack in three hours.
You can check the condition of the batteries at any time:
1. By pressing the MEASURE key, (small font screen) and observing the battery
icon, located at the bottom of the display.
2. By pressing the MEASURE key, (large font screen), the user can scroll all
the way to the end using the DOWN arrow key to observe the battery life
shown in Voltage. When the unit is operating on its internal batteries, the
voltage displayed will vary from an initial 8.0 to 8.4 volts (fully charged) dropping
slowly to approximately 7 volts (batteries nearly empty). When the battery voltage
drops to 7.1 volts a “low battery” warning will appear on the display. Within a few
minutes later the instrument will automatically turn off, to preserve the remaining
battery power for the sensor bias voltages.
Battery Charger
Connected
Battery Full
Battery Empty

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CHAPTER 5
SENSORS -TECHNICAL
The AQ Comfort Air Quality monitor’s sensors are grouped into three categories based
on their principle of operation:
1. Up to one (1) CO (Carbon Monoxide) electrochemical gas sensor
2. One (1) NDIR (infrared gas sensors) – CO2
3. Non-gas sensors (Temperature, Humidity, Pressure, and Velocity)
sensors
The main section of the monitor houses all the electrochemical and NDIR gas sensors,
battery pack, and PC board. On the bottom of the unit, there is a black external
sampling system for Ambient Temperature and Relative Humidity.
The figure below shows the internal manifold of the gas sensors inside the unit:
SENSOR LIST:
CO2
CO

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1. ELECTROCHEMICAL SENSORS
All electrochemical sensors are mounted on fitted socket fittings for easy installation and
removal.
The electrochemical sensor is described here:
Carbon Monoxide sensor (CO)
This is also a three electrode sensor that responds to carbon monoxide. It is equipped
with an inboard filter to remove any interference from other acidic gases.
2. NDIR (INFRARED) SENSOR (CO2)
A non-dispersive infrared (or NDIR) sensor is a simple spectroscopic device most
commonly used to measure CO2 in indoor air quality applications. The main
components are an infrared source (lamp), a sample chamber or light tube, a
wavelength sample chamber, and the CO2 gas concentration is measured electro-
optically by its absorption of a specific wavelength in the infrared (IR).
The AQ Comfort Air Quality Monitor is equipped with one standard NDIR infrared
sensor capable of CO2 measurement (standard range: 0 – 5000 ppm).

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The NDIR sensor have the following specifications:
GAS
RANGE
ACCURACY
CARBON DIOXIDE
(CO2)
0 – 5000 ppm
2% of reading
+ 10 ppm
3. NON-GAS SENSORS
A. Ambient Temperature sensor
This is a solid state sensor located on the front panel of the monitor. The
ambient temperature is displayed on the MEASURE screen in either °F or °C.
The dew point is calculated from the ambient temperature and relative humidity.
The dew point is displayed on the Small and Large Font MEASURE screens as
DPt.
B. Humidity sensor
This is a solid state sensor located on the front panel of the monitor. The
relative humidity is displayed on the MEASURE screen in %RH (% Relative
Humidity). The Wet Bulb is calculated from the ambient temperature, relative
humidity, and barometric pressure. The wet bulb is displayed on the Large
Font MEASURE screen only as WBT.
C. External temperature sensor (T1)
The thermocouple is located at the bottom right side of the monitor. It can be
used with any optional or separate Type K thermocouple probe and/or wire.
The T1 temperature measurements are displayed on the Large Font
MEASURE screen only as T1.
D. Differential Pressure / Air Velocity sensor.
If the monitor comes with the Differential Pressure option and/or the air velocity
option (optional separate L-type Pitot tube and pressure tubing), the internal
pressure sensor is a very low range pressure sensor. The Velocity
measurements are displayed on the MEASURE screen only as VEL.
Differential Pressure is displayed on the MEASURE screen only as ∆P.
E. Connecting Differential Pressure Hoses:
Connect Metal Hose Connections to either P+ or P- Connection as shown.
P+ only will give you Positive pressure; P- only will give you Negative

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pressure. Plug in both as shown below for Differential Pressure. All single &
differential readings are shown on main MEASURE screen as ∆P.
SINGLE PRESSURE DIFFERENTIAL PRESSURE
CHAPTER 6
AQ COMFORT SETUP
The SETUP MENU allows the operator to change the instrument’s parameters.

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Every parameter listed on the SETUP MENU screen can be changed as follows:
a. Use the UP / DOWN keys to move the highlighted line to the parameter
you wish to change.
b. Press OK to edit the value. The parameter you have chosen will become
highlighted on the right side of the screen. This indicates that you are in edit
mode.
c. Use the UP / DOWN keys until the desired value of the selected parameter
appears on the display.
d. Press the OK key to execute the change.
A more detailed explanation of each parameter follows:
1) DATE & TIME: The monitor’s internal clock is displayed in the format month-day-
year, hour-minute-second. Hours are always displayed using a 24-hour clock
format.
2) TEMPERATURE UNITS: The UP / DOWN keys toggle between °F (Fahrenheit) and
°C (Celsius). The T1 temperature reading and ambient temperature will be
displayed, printed, and saved in the selected units.
3) PRESSURE UNITS: Pressure measurements can be shown in millibar (mbar),
inches of water (inWC), millimeters of water (mmWC), millimeters of mercury
(mmHG), inches of mercury (inHG), pounds per square inch (psi) or kilopascal
(kPa).
1 mbar = 0.10 kPa = 0.40 inWC = 10.2 mmWC = 12.95 inHg = 0.75 mmHg = 1.45 PSI
APR 1 ‘14 12:45:00
Temperature Units: F
Measure Units: PPM
Pressure Units: mbar
Pumps: AUTO 750cc/m
Velocity Probe: OFF
Velocity Units: FPS
Duct Size: 0 in2
Display Contrast: 24
Baudrate: 115 kbps
Version: 1.02Li

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4) VELOCITY UNITS: (Velocity Option) Select between feet per second (FPS), meters
per second (MPS), cubic feet per minute (CFM), or cubic meter per minute (CMM).
AIR VELOCITY AND DIFFERENTIAL PRESSURE CAN NOT BE MEASURED
SIMULTANEOUSLY. USER MUST CHOOSE ONE OR THE OTHER.
To change the selection, hit the SETUP key. Using the DOWN arrow key, scroll
Down to VELOCITY PROBE and hit OK. The OFF/ON selection will be highlighted.
Use the Up & Down arrow keys to change the selection from OFF to ON or vice versa.
With the Velocity Probe Selection OFF, the AQ Comfort will measure Differential
Pressure (∆P) automatically. With the Velocity Probe Selection ON, the AQ Comfort
will measure Air Velocity (VEL) automatically. When you have your selection chosen,
hit the OK button and the entire Velocity Probe will be highlighted again. Hit the
MEASURE Button to get back to the Main Measurement screen once you are complete.
5) DUCT SIZE: (Velocity Option). Estimate the cross-section area of your Ducts in
square inches (in2) and set this value to obtain automatic & accurate Air Flow
measurements in CFM or CMM.
NOTE: When using the Velocity Feature on the AQ Comfort it is recommended to
ZERO the readings BEFORE using the Pitot tube to ensure proper Velocity
measurements. See Chapter 9 for instructions on Zeroing the AQ Comfort. (Zero Gas
Sensors)
Connecting Pitot Tube: In air conditioning, heating and ventilating work, it is helpful to
understand the techniques used to determine air velocity. In this field, air velocity
(distance traveled per unit of time) is usually expressed in feet per minute (FPM). By
multiplying air velocity by the cross section area of a duct, you can determine the air
volume flowing past a point in the duct per unit of time. Volume flow is usually measured
in cubic feet per minute (CFM). To make Air Velocity measurements using the AQ
Comfort, you will need to use the Optional 12” Pitot tube. Follow Steps #5 & #6 above
to (1) turn the Velocity Probe option ON (VEL will appear on the unit’s main screen) and
(2) set up your Duct Size. Connect the supplied hoses from the Pitot tube to the (-)
and/or (+) PRESSURE connections on the bottom of the AQ Comfort.
6) PUMP: Pump status is displayed:
a) AUTO - Automatic sample mode is selected
b) OFF – The internal Pump is turned off.
7) DISPLAY CONTRAST: Select the best value for viewing the LCD screen.
8) BAUDRATE: The communication speed for both the USB port and the Bluetooth
connection is set here. The default setting is 115 kbps.

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CHAPTER 7
INTERNAL DATA STORAGE
The STORE MENU allows the operator to store data and manage the internal storage
tags.
The AQ Comfort has 1000 internal storage tags/memory spots. Each tag stores one
complete set of air quality data. There are two ways to store air quality data to the
monitor’s buffer. You can either store data by selecting the option STORE CURRENT
DATA after pressing the STORE key, or alternatively you can make use of the monitor’s
capability of storing data automatically on a periodic basis. You can set the time period
between data storage. The STORAGE MENU shows the relevant display lines for the
storage options.
1. STORE CURRENT BUFFER: The monitor will store one set of data into the tag
currently selected. The index number and the name of this tag appear at the
bottom of the screen.
2. SELECT BUFFER: Selecting this item will display an index of the monitor’s 1000
internal storage tags. Tags that are used have an icon next to their index
number. The selected storage tag is indicated by the reverse color line. When
data is stored, this pointer will automatically advance to the next available tag. If
you want to store data in a different location, use the UP, DOWN, & OK keys to
select a new tag. As you scroll up and down, tags containing data show their
date and time at the bottom of the display. Empty tags show the word empty.
3. START AVERAGE TEST: This will begin a period of data averaging, with the
average values stored periodically in successive memory tags. The interval
between each storage cycle is displayed below and can be set by the user. Once
enabled, this line will read: STOP AVERAGE TEST.
Store Current Buffer
Select Buffer
Start Average Test
Start Periodic Store
Select Interval: 1m
Review Buffer
Name Buffers
Erase Buffers
00: TAG#00

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4. START PERIODIC: This will turn on the periodic store function. In this mode, the
unit will continuously store data at an interval displayed on the next line. Once
enabled, this line will read: STOP PERIODIC.
5. SELECT INTERVAL: The time between each store is set here. This can range
from 10 seconds to 60 minutes.
6. REVIEW BUFFER: This choice allows you to view previously saved data. Press
OK. The display will switch to the data screen, with the data in the first tag
displayed. The time and date when the data was saved will appear at the bottom
of the display. Use the UP / DOWN keys to scroll through the tags.
7. NAME BUFFERS: This choice will take you to
another screen where you can rename one or
more tags. This is useful if you use several tags
together to form a test series. Select the starting
test index with the UP / DOWN / LEFT / RIGHT
keys and press OK. Next, select the ending test
index. The cursor will move to the first character
of the first tag’s name, and the alphanumeric
keyboard will appear. Use the UP / DOWN /
LEFT / RIGHT keys to navigate around the keyboard, and press OK to select the
letter or number. For lower-case letters, highlight shift and press OK, for
symbols, highlight sym and press OK. The arrows in the corner will move the
cursor forward or backward through the tag’s name.
8. ERASE BUFFER: This option is used to erase stored data. Data that has been
stored in the monitor’s memory will be retained even after the instrument has
been shut off and its batteries removed. To erase the contents of a specific tag,
use the UP / DOWN keys to move the arrow to the desired tag. As you scroll up
and down, tags containing data show their date and time at the bottom of the
display. Empty tags show the word empty. If you wish to erase all 1000 of the
monitor’s stored data, move the arrow to the entry ALL TAGS and press OK.
*** NAME BUFFERS ***
Starting Tag: 00
Ending Tag: 00
Name:xxxxxxxxxxxxxxxx
1 2 3 4 5 6 7 8 9 0 ◄
A B C D E F G H sym ►
I J K L M N O P shift
Q R S T U V W X Y Z