Tenmars TM-288 User manual

HEAT STRESS WBGT Meter
TM-288
User’s Manual
HB2TM2880002

Contents
1 Introduction: ...........................................................1
2 Accessories:...........................................................1
3 Safety Precaution:..................................................1
4 Instrument Description: .........................................2
4.1 Feature and function..................................2
4.2 LCD display indication...............................3
4.3 Instructions ................................................4
4.3.1. Application for the wearable type....4
4.3.2. Application for the hanging type .....5
4.3.3. Application for the tripod .................6
5 Operation:...............................................................6
5.1 Power on/off ...............................................6
5.2 Setting OUT/IN and alarm ON/OFF mode..7
5.3 Thermal hazard prevention standards......7
5.4 Calibration mode........................................8
5.5 Reset to factory settings............................8
5.6 Switching℃/℉............................................8
5.7 Alarm mode: loudness/quiet/Off ...............8
5.8 Switching TEMP/TG ...................................9
6 General Specifications:..........................................9
7 Electrical Specification.........................................10
8 Maintenance or Repair .........................................11
9 Battery Replacement............................................12
10 Product Disposal:..............................................12

TM-288
1
1 Introduction:
Thanks for purchasing the Compact Heatstroke Index
Meter.
The chance of heatstroke increases dramatically in the
moist heat environment. This product, measuring in
WBGT, provides real-time alarm immediately so as to
prevent heatstroke in such the environment.
2 Accessories:
1
Meter
1
Carabiner
1
User’s Manual
1
K
ey
ring
1 CR2032 3V battery 1 Silicone elbow for
anti
-
skid
1 Fastener for armband
with
screw
s
1 Screw for silicone
elbow
1
F
lexible armband
3 Safety Precaution:
Caution! Please refer to this manual.
Improper use may damage the meter
and its components.
Complies with European Directive.
Operating altitude: up to 2000M.
Operating environment: Indoor use; Pollution degree 2.
Clean with soft cloth when dirty, such as glasses cloth. Do not
clean with chemicals and other solvents.
EMC: EN61326-1:CISPR 11:Group 1, Class B
Class B – Equipment for use in all establishments other than
domestic.
Group 1 – RF energy generated is needed for internal
functioning.

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4 Instrument Description:
4.1 Feature and function
1. Power/setting button 5. Temperature/humidity
sensor
2.
TG switch
/
U
p
button
6.
TG
probe
3. Alarm switch/Down
button
7. Tripod nut
4.
LCD display
8.
B
attery cover

TM-288
3
4.2 LCD display indication
1. Outdoor Index
2. Indoor Index
3. Alarm
4. Air temp. (TEMP)/
black
-
globe temp
(TG)
5. Heat Index
6.
Humidity
indicator
7.
Low battery indicator
8.
Heat
hazard level

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4
4.3 Instructions
Three ways to use: 1. wearable, 2. hanging, 3. tripod.
4.3.1. Application for the wearable type
Apply the kit as shown in Fig. 1, for the outdoor sportors to
wear them on their arms as shown in Fig. 2.
Fig. 1 Application for Wearable kits
Fig. 2 Wearing on an arm

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5
4.3.2. Application for the hanging type
Attach a silicone elbow on the meter with fastening a
screw into the nut on the back, as shown in (Fig. 3).
As walking, you may hang it on your waist (Fig. 4)
Alternatively, hang it on the backpack (Fig. 5), or hang it
on the baby stroller's handle (Fig. 6)
Fig. 3 Hanging kit Fig. 4 Hanging on the
waist
Fig. 5 Hanging on the
backpack
Fig. 6 Hanging on the
baby stroller

TM-288
6
4.3.3. Application for the tripod
The tripod mount on the back of the meter is available to any
type of tripod (Fig. 6). A bike can also be mounted by a
clamp (Fig. 7) for the outdoor measurement of the heat
index.
Fig. 7 Tripod application Fig. 8 Bike application
5 Operation:
5.1 Power on/off
Press to turn the power on or off

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5.2 Setting OUT/IN and alarm ON/OFF mode
Press and hold + for 2 seconds and enter the
SET1.
SET1: Press or to set OUT/IN (default is OUT).
Press to enter set2
SET2: The user sets the alarm to turn on or off, and the user
sets it at any value to issue an alarm. Press or to
turn Alarm on/off. The ON indicates Alarm User(Refer to 5.3)
while flashing ,Press to enter SET3.( SET3 setting
is skipped if selecting Alarm OFF).
SET3: Press + to set theAlarm value.
Press again to exit the setting.
※PS: If the setting period exceeds 15 seconds, it will
return to measurement mode
5.3 Thermal hazard prevention standards
Heatstroke
caution level
Temperature
baseline Alarm Default Alarm User
Flashing
Caution:
>21~25°C
mute
As
exceeding
the setting
value,
beep for
15
seconds
Extreme
caution
>25~28°C
Beep for 4
seconds
Danger
>28°C~31°C
Beep for
15
seconds
Extreme
Danger
>31°C
Beep for 3
second and
pause for 2
seconds,
repeat until
15 seconds

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8
After alarm finishes, the alarm will repeatedly work per 1
minute if the temperature continuously exceeds the
baseline.
5.4 Calibration mode
In the shutdown state, press and hold and then press
to enter calibration mode: Press or to
select item TA/TG/RH, click to confirm, and press
or to increase or decrease temperature and humidity
data.
5.5 Reset to factory settings
In the shutdown state, press and hold + and then
press for 5 seconds, going to the power-on state
while all the icons on the display appears. Enter the test
mode while the hardware version appears. (At the moment,
all calibration and settings are wipeout and restored to the
factory settings).
5.6 Switching℃/℉
In the shutdown status, press and hold and then
press for more than 3 seconds to power on. In the
power-on state, you can switch between °F and °C.
5.7 Alarm mode: loudness/quiet/Off
: Click for loudness quiet mute (buzzer
without display); switch the modes cyclically.

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5.8 Switching TEMP/TG
: Click to switch the mode to TG (black-globe temp.)
from TEMP (Air temp.), and it will automatically return to
TEMP on 5 seconds later.
6 General Specifications:
In compliance with JIS B 7922 Level 2
Three applications: arm band, tripod, and hanging.
High-sensitive capacitive humidity sensor and bandgap
temperature sensor.
Measure the WBGT, black-globe temp. (TG), Air temp.
(TA), humidity (%RH).
Low voltage indicator
°C or °F selectable.
With the plastic black-globe of the diameter Ø40mm.
Three-stage WBGT alarm selectable:   mute
(buzzer not displayed), cyclic setting.
Outdoor or indoor (default is OUT) measurement mode
selectable.
Sampling interval: per 20 seconds
Dimension: 116 x 60 x 50mm(L x W x H)。
Weight: 80 g (excluding battery weight)
Power: 3V CR2032 x 1.
Battery life up to about 500 hours (alarm not provided).
Operating wind speed: 0.3 m/s or above.
Operation temperature and humidity: 0°C to
+50°C,<80%RH (No condensation)
Storage temperature and humidity: 0°C to
+60°C,<70%RH (No condensation)
Display dimension: 41mm(W) x 38mm(L)

TM-288
10
7 Electrical Specification
Wet Bulb Globe Temperature (WBGT)
Unit Measuring
range Resolution tolerance range 15~40°C
°C 0~50.0 0.1 ±2.0
°F 32.0~122.0 0.1 ±3.6
※Indoor & outdoor without sunshine ”IN” :WBGT =
(0.7×WET)+(0.3×TG)
Outdoor in
sunshine
”OUT”
:WBGT=(0.7×WET)+(0.2×TG)+(0.1×TA)
Air temperature (TA)
Unit Measuring
range
Resolution Tolerance
@15~40
°C
°C
0~50.0
0.1
±0.
6
°F
32.0~122.0
0.1
±1.
1
Black-globe temperature (TG)
Unit Measuring
range
Resolution Tolerance
@15~40°C
°C
0~80.0
0.1
±0.6
°F
32.0~176.0
0.1
±1.1
Humidity (%RH)
Unit Measuring
range
Resolution Tolerance
@25°C
%RH
3
0.
0~
9
0.0
0.1
±
5
.0%RH
%RH
<
3
0.0 , >
9
0.0
0.1
±
7
.0%RH
Caution
While working in a high humidity environment,
please keep the meter in a low humidity
environment for 24 hours after use.

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11
8 Maintenance or Repair
1. appearing on the LCD display indicates the battery
low. Please replace the battery immediately to ensure the
accuracy.
2. Please use a soft cloth, such as glasses cloth, to wipe the
meter for the dirt and not use chemical solvents.
3. If not using for a long time, please remove the battery to
prevent the leakage of battery fluid which may corrode the
internal components.
4. In case of malfunction, the meter can only be sent to the
authorized service suppliers or back to the original factory
for maintenance.

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12
9 Battery Replacement
1. Turn off the power.
2. Uninstall the bracket and open the battery cover on the
back of the meter, and remove the battery.
3. Install a CR2032 battery and ensure the polarity
positions of positive and negative.
Place back the battery cover and the bracket back.
10 Product Disposal:
Note: This symbol indicates that the
meter and its accessories must be
separated and processed properly.
Caution
As battery low icon
appears on the
LCD display,
please replace the battery
immediately
by
the correct steps.

TENMARS ELECTRONICS CO., LTD.
6F, NO.586 Ruiguang Rd, Neihu Dist.
Taipei City, Taiwan
E-mail: [e-mail]
http://www.tenmars.com
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