OWNER’S MANUAL
Table of Contents
LIMITATION OF WARRANTY AND
LIABILITY................................................................... ii
SECTION 1 General Description.................................5
SECTION 2 Safety...........................................................6
SECTION 3 Setting-Up ..................................................7
Supplying Power to the Model IAQ50.....................7
Installing the Batteries.................................................7
Using the Optional AC Adapter................................7
Start up Sequence for the Model IAQ50...................8
Battery Percentage...................................................8
Log Percentage.........................................................8
Baud Rate..................................................................8
Setting the Real-Time Clock...................................8
Barometric Pressure ................................................9
Using the Sensing Probe ...........................................10
SECTION 4 Detailed Operation.................................10
Keypad Functions ......................................................10
ON/OFF Key .........................................................11
CO2 Key ...................................................................11
TEMP Key...............................................................12
HUMID Key ...........................................................13
READ/ENTER Key...............................................13
TIME LOG Key ......................................................14
NEXT TEST Key.....................................................16
%OA (Percent Outside Air) Key .........................16
BP Key .....................................................................21
RECALL Key..........................................................22
Arrow Keys (56).................................................23
DEL Key..................................................................24
Printing Data Using the Optional MicroPrinter ...25
Connecting the Optional MicroPrinter...................25
3
SECTION 5 Maintenance............................................ 26
Probe Tip..................................................................... 26
Cases............................................................................ 27
Storage......................................................................... 27
SECTION 6 Service and Calibration ........................ 27
Factory Calibration.................................................... 28
Field Calibration........................................................ 29
CO2 Field Calibration Procedure ............................ 29
Temperature and Humidity Calibrations
Adjustment Procedure.............................................. 32
SECTION 7 Troubleshooting..................................... 34
SECTION 8 DIP Switch Settings............................... 36
Specifications................................................................. 38
4
SECTION 1
General Description
The Model IAQ50 measures Carbon
Dioxide (CO2) level, temperature and
relative humidity, and calculates dew
point and wet bulb. It also calculates the
percentage of outside (make up) air in a
given indoor space, using CO2 levels, or
temperature. The instrument will deter-
mine statistics and recall individual data
points for up to 255 test IDs. The Model
IAQ50 will retain data even after it is
turned off.
The IAQ50 ships in a soft-sided carrying
case that holds the meter and probe, a
probe stand, and calibration collar. There
is space in the case for an optional Micro-
Printer and charger. The instrument ships
with batteries (which are not installed), a
calibration sheet, and this Owner’s
Manual.
5
SECTION 2
Safety
When using the IAQ50 to check for CO2,
temperature or humidity values, make
certain that you can safely raise and hold
the instrument while making measure-
ments. Be especially careful when working
on a ladder.
Observe all necessary precautions so that
the unit does not become caught in
moving machinery or touch any exposed
electrical wiring.
DANGER!
Use with corrosive or other dangerous or
explosive gas mixtures is not recom-
mended.
WARNING!
Do not expose the sensing probe to
excessive heat—it can damage the
sensors and probe.
6
SECTION 3
Setting-Up
Supplying Power to the Model IAQ50
The Model IAQ50 can be powered in one
of two ways: four AA-size batteries or an
optional AC adapter.
Installing the Batteries
Insert four AA batteries as indicated by the
diagram located on the inside of the
battery compartment. The Model IAQ50 is
designed to operate only with alkaline
batteries, which are included. At 15%
battery life remaining, the battery indica-
tor will show that the batteries need to be
changed.
Using the Optional AC Adapter
The optional AC adapter allows you to
power the Model IAQ50 from an AC
outlet. When using the AC adapter, the
batteries (if installed) will be bypassed.
The AC adapter is NOT a battery charger.
7
Start up Sequence for the Model IAQ50
When the instrument is turned on, all
segments of the display will light up and
then the meter goes through a start-up
sequence.
Battery Percentage
This shows the remaining amount of
battery power.
Log Percentage
This shows how much of the datalog-
ging memory is still available.
Baud Rate
The Model IAQ50 has a DEFAULT baud
rate of 1200, which allows it to commu-
nicate with the optional portable Micro-
Printer.
Setting the Real-Time Clock
The Model IAQ50 has an internal clock
that keeps track of the time (the format
is HH.MM where HH is the hour in 24-
hour format and MM is minutes) and
the date. It is very important to set the
time and date correctly, otherwise date
8
and time stamping of recorded data will
not be correct.
To set the time and date, press and hold
either 5 or 6 key during the power-up
sequence when the time is displayed.
Release the keys when the Model IAQ50
beeps twice. You will have an opportu-
nity to view and/or change the minutes
(min), hours, year, month and date in
sequence. Use the 5 or 6 key to change
any settings. Use the ENTER key to store
each setting and advance to the next one.
Barometric Pressure
The default barometric pressure is 29.92.
To change this, press the 5 or 6 keys.
Press ENTER to store the new value. Be
sure to use “stations pressure” which
may be available at the local airport.
“Station pressure” is not corrected to sea
level. The barometric pressure is used to
correct the CO2 readings and to calculate
the wet bulb.
The instrument then displays current
conditions. To skip the start-up
9
sequence, press and hold the ENTER
key at any point of the start-up
sequence, until the meter beeps.
Using the Sensing Probe
The sensing probe relies on the diffusion
of air. For best results, try to keep the
sensing probe surrounded by moving air.
Do not breathe on the probe, since humans
exhale levels well exceeding 10,000 ppm
CO2 and it may take time for the probe to
re-stabilize.
SECTION 4
Detailed Operation
Keypad Functions
When pressing the keys on the front panel,
the Model IAQ50 will beep to confirm the
function. If you press a key and it does not
beep, the instrument does not allow that
function during the selected mode.
10
ON/OFF Key
Press the ON/OFF key to turn the in-
strument on and off. When the instru-
ment is first turned on, it goes through a
preprogrammed power-up sequence
that includes an internal self-check
(when all displayable items are shown).
The Model IAQ50 begins by displaying
percentage of battery life remaining
(accurate for alkaline batteries only), the
percentage of memory available, baud
rate, time (HH.MM) and entered baro-
metric pressure. At this point, the Model
IAQ50 will start measuring CO2, tem-
perature and % relative humidity.
If a problem is detected, the display will
show “CAL” to indicate that it should be
returned for service and/or calibration.
Note: To skip the start-up display, press and
hold ENTER at any time during the power-
up sequence.
CO2 Key
The Model IAQ50 will automatically
start in CO2 mode. To return to this
mode from another measurement pa-
11
rameter, press the CO2 key. Then, place
the probe in the location you want to
measure gas concentration.
TEMP Key
The meter will always display tempera-
ture readings from the permanent sensor
on the lower line of the display. When
you wish to take an external tempera-
ture reading using an RTD probe, plug
any three-pronged RTD probe into the
right side. Then, press the TEMP key to
view the temperature from the resistive
temperature detector (RTD). The letters
“Prb” will display on the top line of the
display and the actual temperature from
the RTD on the bottom line.
To return to reading temperatures from
the permanent probe, press the TEMP
key again.
Note: If the external RTD probe becomes
unplugged while in “Prb” mode, the display
will read “over.” If the RTD probe is not
plugged in and the TEMP key is pressed,
nothing will happen.
12
HUMID Key
Press HUMID to toggle between %RH,
dew point or wet bulb, (as displayed on
the top line of the display). Dew point
and wet bulb are displayed in the same
units chosen for temperature measure-
ment.
READ/ENTER Key
This is a dual function key. It reads
measurement samples and it can be used
to accept a value or condition or to
return to regular measuring mode.
Press READ to take a sample reading;
the instrument takes a measurement
over five seconds. When the display is
flashing SAMPLE, it counts down the
five-second sample time: five, four,
three, two. Then the display shows
COUNT and a number. This is the num-
ber of individual readings in this test ID.
All measurements are stored in memory.
Note: Be certain to press NEXT TEST key
to save readings into a different test ID.
13
TIME LOG Key
To set up the instrument so it automati-
cally takes measurements, use the TIME
LOG key. This allows you to program a
logging time and interval, and the meter
will read and store measurements that
can be viewed later.
Press the TIME LOG key. Use the 5 or
6 keys to select “On”. Press the ENTER
key.
“LOG” will light up on the display and
the logging interval is shown. Use the 5
or 6 keys to scroll through the log
interval choices. The choices are: 5, 6, 7,
8, 9, 10, 15, 20, 25, and 30 seconds (SEC),
and 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25,
30, and 60 minutes (min). Press the
ENTER key to accept your choice.
Next, you will choose the number of
readings that you want the instrument
to take. The choices are “COnt” or 1 to
9999. Use the 5 or 6 keys to scroll
through the choices, and press ENTER
to accept your choice. If “COnt” is cho-
14
sen, the instrument will sample continu-
ously until it is either stopped manually,
runs out of memory, or the batteries run
out. If a number between 1 and 9999 is
chosen, the instrument will take that
number of samples and then stop stor-
ing readings.
The instrument will then return to a
normal measuring mode.
Press ENTER to start the automatic time
log. LOG will flash on the display while
this function is running. You need to
press ENTER to stop the logging func-
tion if it was set for “COnt”. You may
also press ENTER at any time during the
logging function to cancel a preset num-
ber of samples.
The log mode remains programmed
until you go into TIME LOG and turn
this feature “OFF.” Simply press ENTER
to start another time log test.
15
NEXT TEST Key
Press NEXT TEST to advance to the next
test ID. If the current test ID does not
have anything stored, it will not advance
to the next test ID.
The Model IAQ50 will automatically
increment the test ID number under the
following conditions:
•
turning off the Model IAQ50 (if
there is stored data)
•
•
setting any data logging sample
taking a %OA measurement after a
normal sample
•
taking a normal sample after a %OA
measurement.
%OA (Percent Outside Air) Key
The percentage of outside air can be
calculated using CO2 or temperature
measurements using the following
equation:
16
Using CO2:
%OA= (CR–CS) / (CR–CO) x 100%
where %OA = Percentage of outside
air
CR
= Concentration CO2 of
return air
CS
= Concentration CO2 of
supply air
CO = Concentration CO2 of
outside air
Using Temperature:
%OA= (TR-TS) / (TR-TO) x 100%
where %OA = Percentage of outside
air
TR
TS
TO
= Temperature of return
air
= Temperature of supply
air
= Temperature of outside
air
17
IMPORTANT:
Temperature readings should be taken at
the Air Handling Unit only, since there may
be components in the system that change
the temperature that are not evident upon
initial examination. Calculating Outside Air
measurements by taking readings at the
supply air to a room will not give the
correct answer. Reheat coils and chiller
coils will change the temperature of the
readings and give incorrect answers.
The general procedure for either method
is to take a reading in each of three
modes: return air, outside air, and sup-
ply air. Pressing ENTER while in %OA
mode will store all three samples and
then give you the calculated value on the
display. You may use the 5 or 6 keys
to move from mode to mode. You may
press the NEXT TEST key at any time to
exit back to normal sampling.
Note: You may press the %OA key at
any time during the following proce-
dure to exit without saving any data
and to return to normal sampling.
18
Details on the procedure are as follows:
Press the %OA key once to begin. To
choose a measurement mode (OA,
SUPPLY, RETURN), use the 5 or 6
keys.
You may press TEMP or CO2 at any time
to move from calculating %OA from
TEMP to CO2 or from CO2 to TEMP.
In return air mode, “RETURN” will
appear on the display. The current value
will show on the bottom line of the
display. The top line of the display will
show either dashes (if this is the first
time using %OA function or if the mem-
ory has been cleared) or it will show the
last value stored for return air. Press
READ/ENTER once the reading has
stabilized.
The stored measurement will display on
the top line. This is the reading that will
be used to calculate percentage of out-
side air.
19
If the measurement is not acceptable or
the value is not yet stable, wait a minute
and then take another reading to over-
write the value on the top line.
Once the top line value is acceptable,
press the 5 or 6 keys to move the icon
to either Supply or %OA, whichever
reading you are prepared to make next.
Repeat the procedure with both a Sup-
ply measurement and an Outside Air
measurement.
Remember, the top line measurement is
what will be used in the calculation.
Once all three readings are stored, press
the 5 or 6 keys to advance to %OA.
“OA%” will appear on the display along
with the % outside air value. To put this
%OA value and the values from the
three other modes into memory, press
the READ/ENTER key.
20
Note: “Err” will display if not enough
information is available or a negative %
value is calculated.
To make changes to one of the other
three readings without putting these
values to memory yet, press the 5 or 6
keys to review the values and press
READ/ENTER to overwrite the value.
To exit this procedure completely with-
out putting any values to memory, press
NEXT TEST.
To take another % outside air measure-
ment, make sure you pressed
READ/ENTER to put the values to mem-
ory. Then use the 5 or 6 keys to review
the measurements and take new samples
for supply and return. The stored Out-
side Air reading can be used in all per-
centage calculations, unless you input a
new value.
BP Key
To change the stored barometric pres-
sure, press BP and use the 5 or 6 keys
21
to change the value. Press ENTER to
return to normal measuring mode.
RECALL Key
The RECALL key lets you review data
from a particular test ID.
Press the RECALL key. The most current
test ID number will show on the display.
Press ENTER to review measurements
in this test ID, or use the 5 or 6 keys to
choose another test ID to review. If
dashes appear in the top line of the
display, there is no stored data in that
particular test ID.
Use up arrow to view average, total
number of samples (count), minimum
reading, maximum reading, and indi-
vidual readings for the selected test ID.
The samples will be displayed in the
order that they were taken.
To view a different test ID, you need to
press RECALL again.
The display will always show CO2 meas-
urements. To review other measure-
22
ments, press the desired measurement
button. For example, if you wish to see
humidity measurements, press HUMID.
Press HUMID again to see dew point
readings. For the external RTD, press the
TEMP key. If there is no data for that
measurement type “-----” will be dis-
played. Press another measurement key
to view more data or press ENTER to
return to measuring mode.
Note: To view return air, supply air or
outside air data individually, you must
download to computer or print out the
values. %OA is reviewable on-screen.
Arrow Keys (56)
The two arrow keys are used to scroll
through and select values as needed for
Model IAQ50 functions. They are also
used while in field calibration mode.
On the Model IAQ50, pressing either 5
or 6 key on the start-up sequence while
baud rate, time or barometric pressure is
displayed will allow you to change
23
them. Use the 5 or 6 key to adjust the
value, and press ENTER to accept.
DEL Key
The Model IAQ50 lets you clear the last
sample stored or the entire contents of
memory.
To clear only the last sample, hold the
DEL key and the display will begin a
countdown from 3 to 0. Release the key
before 0 is displayed. The display will
beep twice and flash ”CLEAR
SAMPLE.”
To clear all memory, press and hold the
DEL key and the display will begin a
countdown from 3 to 0. Release the key
while 0 is displayed. The display will
beep twice and flash “CLEAR LOG.”
Note: If you release the key after 0 is dis-
played, it will not beep, and nothing will be
deleted.
24
Printing Data Using the Optional
MicroPrinter
If the optional MicroPrinter is connected,
what is viewed on-screen will be on the
paper printout.
Note: In order to print, the baud rate on the
Model IAQ50 must be set to the same as the
printer. The default is 1200.
The data will print in a format such as
12,345.67. If you desire, the Model IAQ50
can print in a format such as 12.345,67 by
switching DIP switch #8 ON. See “DIP
Switch Settings” in Chapter 8.
Connecting the Optional MicroPrinter
To connect the MicroPrinter printer to the
Model IAQ50, locate the Printer Interface
Cable (supplied with the optional printer)
and connect the 9-pin end labeled
“PRINTER” to the printer and the other
end to the data port of the Model IAQ50.
The printer must be set to the same baud
rate as the Model IAQ50. See Baud Rate
section for details on how to change the
baud rate. To change the baud rate of the
25
printer, please refer to the operation and
service manual for the printer to properly
set the printer’s DIP switch settings. If the
printer prints question marks (??????),
asterisks (******), or random characters,
reset it by turning it off and then on again.
If necessary, refer to the Owner’s Manual
for the MicroPrinter.
SECTION 5
Maintenance
Probe Tip
Periodically inspect the probe tip to ensure
that it is clean. Dust and oil deposits on the
sensor may affect the response time of the
Model IAQ50. To remove dust, blow it off
with a gentle stream of air.
Caution:
To avoid possible irreparable damage, do
not use liquid to clean the probe or probe
tip.
26
Cases
If the instrument case or storage case
needs cleaning, wipe it off with a soft
cloth. Never submerge the Model IAQ50
in any liquid.
Storage
When storing the Model IAQ50 for more
than a month, TSI recommends removing
the batteries. This prevents possible
damage due to battery leakage.
SECTION 6
Service and Calibration
Please return your Product Registration
Card immediately. This allows us to send
service reminders, special offers, and
important information about your
product.
Before sending your instrument for
calibration or repair, you should call
Customer Service. The service department
will provide you with the cost of service or
27
calibration, Return Material Authorization
(RMA) number, and shipping instructions.
Please have the following information
available when you call:
•
Owner’s name, address, and phone
number
•
Billing address, if different and
applicable
•
•
•
•
Instrument name and model
Serial number
Date of purchase
Where purchased
TSI recommends that you keep a “calibra-
tion log” and keep all records of service on
your instrument.
Factory Calibration
To maintain a high degree of accuracy in
your measurements, TSI recommends that
you return your instrument to the factory
for annual calibration. For a nominal fee,
we will calibrate the unit and return it to
you with a NIST (US National Institute of
Standards and Technology) traceable
certificate. This “annual checkup” assures
you of consistently accurate readings; it is
28
especially important in applications where
strict calibration records must be main-
tained.
Send the instrument to TSI Instruments
Ltd. prepaid. Securely package your
instrument in a strong container sur-
rounded by at least 5 cm of suitable shock-
absorbing material. Include a purchase
order that clearly shows the instrument
model number and serial number, a
contact name, phone, fax number, and
RMA number. Mark the outside of your
shipping container with the RMA number.
This will expedite processing of your
instrument when we receive it.
Field Calibration
CO2 Field Calibration Procedure
1. Turn the IAQ50 on and set the Baro-
metric Pressure to the current Baro-
metric Pressure. Be sure to use “station
pressure” which may be available at
the local airport. “Station pressure” is
not corrected to sea level.
2. Turn the IAQ50 off and flip DIP switch
#7 to ON.
29
3. Turn the IAQ50 on. It will flash “CAL”
on the top row and beep intermit-
tently.
4. Press and hold the CO2 key to begin
the calibration procedure. The display
will begin a countdown from 5 to 0.
Release the key when the display
reads 0. If the key is released too soon
or too late, the instrument will go back
to beeping and flashing “CAL”. If
you’ve done this step correctly,
“ZerO” will appear on the display and
the beeping will have stopped.
5. Slide the calibration collar onto the
probe until it stops. It should cover the
set of holes closest to the handle.
6. Install the regulator on the zero
calibration gas tank and connect tub-
ing from the regulator to the inlet fit-
ting on the CO2 calibration collar.
7. Turn on gas flow.
8. Press and release the READ key to
begin a zero reading. The IAQ50 be-
gins a 60 second countdown during
the zero reading. The actual zero read-
ing is taken in the last 10 seconds.
When the countdown is completed,
30
the display indicates “SPAN” and the
span concentration.
9. Install the regulator on the span
calibration cylinder and connect tub-
ing from the regulator to the inlet fit-
ting on the calibration collar.
10. Use 5 and 6 keys to adjust the
concentration displayed on the IAQ50
to match the concentration on the span
gas cylinder.
11. Press and release the READ key to
take a span gas reading. The IAQ50
starts a 60 second countdown. When
the countdown reaches zero, the in-
strument returns to the normal meas-
urement mode.
12. With the gas still connected, observe
the reading on the display. It should
indicate the span gas concentration. If
not, repeat the calibration.
13. If the displayed reading is accurate,
remove the regulator and tubing.
14. Turn the IAQ50 off and flip DIP switch
#7 to OFF (normal mode). The calibra-
tion is now complete.
31
Temperature and Humidity Calibrations
Adjustment Procedure
The temperature adjustment can add or
subtract a number of degrees. The range is
±9.99ºF (±5.55°C). Calibration can be done
in either ºF or ºC mode. Humidity adjust-
ment adds or subtracts a constant percent-
age. The range is ±12.0% relative humidity.
The procedure for field adjustment is as
follows:
Turn off the instrument, flip DIP switch #7
to “ON.” Turn the Model IAQ50 on again.
On the Model IAQ50, press and hold the
parameter key you want to adjust to enter
calibration mode. The display will begin a
countdown from 5 to 0. Release the key
when 0 is displayed. The top line of the
display will show the adjustment number
and the bottom line will show the actual
reading value. Use the 5 and6 keys to
change the adjustment number and press
READ key to accept. The meter returns to
the measurement mode when the READ
key is pressed. You must press and hold
the parameter you want to adjust to access
32
it. When finished, turn the instrument off
and flip DIP switch #7 to “off.”
On the Model IAQ50, press and hold the
TEMP or HUMIDITY key to enter the
calibration mode for that parameter. To
enter the calibration mode for the RTD,
make sure the RTD is plugged in. Press the
TEMP key until “Prb” shows on the
display, then press and hold the TEMP
key.
The display will begin a countdown from
5 to 0. Release the key when 0 is displayed.
The top line of the display will show the
adjustment number (factory setting is 0.0)
and the bottom line will show the actual
reading value. Use 5 or 6 keys to change
the adjustment number and press ENTER
to accept. If necessary, repeat the above
sequence for the other parameters. When
finished, turn the instrument off and flip
DIP switch #7 to “off.”
33
SECTION 7
Troubleshooting
Table 7-1 lists the symptoms, possible
causes, and recommended solutions for
common problems encountered with the
Model IAQ50. If your symptom is not
listed, or if none of the corrective actions
solve your problem, please contact TSI
Instruments Ltd.
Table 7-1: Troubleshooting the
Model IAQ50
Possible
Corrective
Symptom Causes
Action
No
display
Unit not
Switch on the
unit.
Replace the
batteries or
plug in the AC
adapter.
switched on
Low or dead
batteries
Dirty battery
contacts
Clean the
battery
contacts.
Battery
symbol is
blinking
Batteries are
low, 15% or
less life
Replace
batteries.
remaining
34
Possible
Symptom Causes
Corrective
Action
Display
reads "LO" adapter
Wrong AC
Replace with
the correct AC
adapter.
Low AC line
voltage
Correct the AC
line voltage or
use batteries.
Clean the
Dirty battery
contacts
battery
contacts.
Display
reads
“CAL”
The Model
IAQ50 has
detected an
internal fault
A parameter
value is too
high.
Return to
factory for
service.
Display
reads
“OVER”
Use an
alternate
method to
make meas-
urement.
Plug in the
RTD
RTD became
unplugged
while reading
RTD tempera-
ture.
Temp.
initially
reads high adjusting to
or low temperature
Temperature
sensor is still
Allow
sufficient time
for the
temperature to
stabilize.
35
Possible
Symptom Causes
Corrective
Action
Display
reads
“LOG
FULL”
You are trying
Read or record
the average;
clear the
sample register
and proceed.
Return to
to enter more
readings than
memory can
handle
Low lithium
battery power
Display
flashes
factory for
“Libatt”
replacement.
SECTION 8
DIP Switch Settings
To access the DIP switches, remove the
batteries from the battery compartment.
On the inside of the battery compartment,
there is a window with eight DIP switches.
The table below shows the functions for
each switch.
Caution:
Make certain that power is turned off
before changing DIP switch settings.
36
Table 8-1: DIP Switch Settings
Switch
OFF
Must be OFF
Not assigned
°F
ON
1-3
4
5
-------
-------
°C
6
7
8
Buzzer OFF
Normal Mode
American Date
Buzzer ON
Calibrate Mode
European Date
Format and 12,345.67 Format and
12.345,67
The ON position is away from the batteries
and OFF is towards the batteries. Always
leave DIP switch #1–4 in the OFF position.
37
Specifications
Specifications are subject to change without notice.
CO2
Range:
Accuracy:1
0 to 5000 ppm
±3% of reading at 25oC or
± 50 ppm, whichever is
greater
Resolution:
Sensor Type
1 ppm
Dual wavelength NDIR
(Non-dispersive Infrared)
Temperature:
Range:
Accuracy:
Resolution:
0 to 60°C
± 0.6°C
0.1°C
Secondary Temperature Probe (optional):
Range:
-40 to 120°C
±0.6°C
0.1°C
RTD -100 ohms, 3
terminal
Accuracy:
Resolution:
Sensor Type:
Relative Humidity:
Range:
5% to 95% RH
±3.0% RH
Accuracy2
Resolution:
Sensor Type:
0.1% RH
Thin-film capacitive
Dew Point:
Range:
Resolution :
-15 to 49°C
0.1°C
38
Wet Bulb:
Range:
5 to 60°C
Resolution:
0.1°C
% Outside Air:
Range:
Resolution:
0 to 100%
0.1%
Logging Capability:
Up to 14,000 measure-
ments in 1000 test ID’s
5,6,7,8,9,10,15,20,25, 30
sec. 1,2,3,4,5,6,7,8,9,10,15,
20,25,30,60 min.
Intervals:
Meter Dimensions:
89 mm × 168 mm ×
41 mm
Weight (with batteries):
Probe length:
0.53 kg
175 mm
Probe tip diameter:
Display:
19 mm
2 line, 4-digit LCD
5 to 70°C
Operating Range:
Storage Range:
-20 to 70°C
Power Requirements:
Four AA-size batteries
(included) or AC adapter
(optional)
Printer Interface Type:
Serial, 1200 baud
1 Add ±0.36%/ deg C away from calibration
temperature
2 At 25°C. Add uncertainty of ±0.05%/°C away from
calibrated temperature
39
TSI Instruments Ltd.
Lancaster Road
October 2005
Printed in USA
Cressex Business Park
High Wycombe
Part No. 1980533, Rev. A
Buckinghamshire
HP12 3QP England
Tel: +44 (0) 149 4 459200
Fax: +44 (0) 149 4 459700
E-mail: [email protected]
Copyright © 2005
TSI Incorporated
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