Benetech GM700 Instruction Manual

Infrared thermometer
Instruction manual
Version GM700-EN-00
1
E. Operation
1. Operating the unit
1). Open the battery door and insert a 9V battery properly.
2). Pull the trigger to turn on the unit;
3). Aim at the target surface and pull the trigger, then temp-
erature will be shown on the LCD.
This unit is equipped with a laser, which is only used for
aiming.
2. Locating a Hot Spot
To find a hot spot, aim the thermometer outside of interest,
then scan across with an up and down motion until you
locate the hot spot. (Figure 1)
Figure 1
F. LCD display & buttons
1.LCD display:
A: measuring reading
B: measuring unit
C: laser on icon
D: back light on icon
E: battery power icon
F: scanning icon
H
G: data hold icon
H: mode/emissivity indicator
I: data storge / read icon
J: low temperature alarm icon
K: high temperature alarm icon
2. Diagram description
(figure 2)
6
4 STO
SET
CAL
5
MODE
3
4
A. Introduction
This infrared thermometer is used for measuring the tem-
perature of the object's surface, which is applicable for va-
rious hot, hazardous or hard-toreach objects without contact
MODEL:GM700
safely and quickly.
This unit consist of Optics, Temperature Sensor Signal
amplifier, Processing circuit and LCD Display. The Optics
collected the infrared energy emitted by object and focus onto
the Sensor. Then the sensor translates the energy into an
electricity signal. This signal will be turned out to be digital
shown on the LCD after the signal amplifier and processing
circuit.
B. WARNING & CAUTIONS
1. Warning:
To avoid the potential situation may cause harm or dam-
age to people, please pay attention to the following items:
1) . Do not point laser directly at eye or indirectly off reflec-
tive surfaces.
2) . The unit cannot measure through transparent surfaces
such as glass or plastic. It will measure the surface tem-
perature of these materials instead.
3) . Steam, dust, smoke, or other particles can prevent acc-
urate measurement by obstructing by the units optics.
2. Cautions:
Infrared thermometer should be protected for the
following:
1). EMF (electro-magnetic fields) from arc welders,
induction heaters.
2). Thermal shock (cause by large or abrupt ambient
temperature changes allow 30 minutes for unit to
stabilize before use).
3). Do not leave the unit on or near objects of high
temperature.
C. Distance to spot size
1. When take measurement, pay attention to the Distance
to Spot Size. As the Distance (D) from the target surface
increases, the spot size (S) of the area measured by the
unit becomes larger.
The Distance to Spot size of the unit is 12:1.
This unit is equipped with a laser, which is used for aiming.
(1) Trigger: When turn on LCD display VERXX software
version for 1 sec. And turn to display reading with
SCAN icon. Release the trigger, display reading with
HOLD icon. Built in auto power off in 30sec.
(2) Laser / back light button: when back light turn on ,
any operations will remain back light for 10 sec. LCD
indicate on/off status.
(3) (6) key functions: press 3 key, LCD subdisplay
blinks MAX-MIN-DIF-AVG-HAL-LAL-STO-EMS seg-
ment(only main display means normal measuring
mode) press 4 key to enter.
a. MAX: measuring maximum temperature
b. MIN: measuring minimum temperature
c. DIF: Basic on the reading before press 4 key,
compute the difference of current reading.
d. AVG: measuring average temperature
e. HAL: high temperature alarm--when selected HAL,
press 5 keys to set high temperature alarm trigger
and confirmed by pressing 4 key. When reading over
trigger, LCD display HI icon with BiBi audio sounds.
G F E D C
f. LAL: low temperature alarm--when selected LAL,
press 5 keys to set low temperature alarm trigger and
B
confirmed by pressing 4 key.
When reading over trigger, LCD display LOW icon
A
with BiBi audio sounds
g. STO: data storage--when selected STO, lock & DATA
& 1---indicator will shown when press 4 key. After
temperature read out press 6 key to store, then 2---
I J K
memory unit will be shown. There 12 groups memory
unit available. To recall the stored data in normal
measuring mode by pressing 6 key, remove all data
by pressing 6 keys for 3 seconds.
H. EMS: Emissivity setup-- press 5 key for emissivity
settings, press 4 key to save setup and back to
1
normal status.
2
(7) Clesius / Fahrenheit switch: Please open battery
5
7
and push the slide switch for convertsion.
Figure 2
2. Field of view:
Make sure the target is larger than the unit's spot size.
The smaller the target the closer measure distance.
When accuracy is critical, make sure the target is at least
twice as large as the spot size.
D. EMISSIVITY
Emissivity: Most organic materials and painted or
oxidized surfaces have an emissivity of 0.95(preset in
the unit). Inaccurate readings will result from measuring
shiny or polished metal surfaces. To compensate for this,
adjust the units emissivity reading or cover the surface to
be measured with masking tape or flat black paint.
Measure the tape or painted surface when the tape or
painted reach the same temperature as the material
underneath.
Aluminum
Frozen food
Glass(plate)
2
G. Maintenence
1. Lens Cleaning:
Blow off loose particles using clean compressed
air. Gently brush remaining debris away with a
moist cotton swab. The swab may be moistened
with water.
2. Case cleaning: Clean the case with a damp spo-
nge/cloth and mild soap.
Note:
H. Specification
5
38mm@ 75mm@ 132mm@
D:S=12:1
300mm 900mm 1500mm
1.5"@ 3.0"@ 5.3"@
12"
36" 60"
Emissivity
Marterial Marterial
0.30 Iron
Asbestos 0.95 Lead
Asphalt
0.95 Limestone
Basalt 0.70 Oil
Brass 0.50 Paint
Paper
Brick 0.90
Carbon 0.85 Plastic
Ceramic 0.95 Rubber
Concrete 0.95 Sand
Copper
0.95 Skin
Dirt 0.94 Snow
0.90 Steel
Hot food 0.93 Textiles
0.85 Water
Ice 0.98 Wood
3
1) Do not use solvent to clean plastic lens.
2) Do not submerge the unit in water.
Temperature range -50~700 (-58~1292 )
0~700 (32~1292 ) : 1.5 ( 2.7 )
or 1.5%
Accuracy
-50~0 (-58~32 ): 3
Whichever is greater
Resolution 0.1 or 0.1
Repeatability 1% of reading or 1
Response time 500 mSec, 95% response
Spectral response
8-14 um
Emissivity
0.10~1.00 Adjustable (0.95 Preset)
Distance to Spot size
12:1
Operating Temperature 0 ~40 (32 ~ 104 )
10~95%RH non-condensing
Operating Humidity
up to 30 (86 )
Storage Temperature -20 ~ 60 (-4~140 )
Power 9V Alkaline or NiCd battery
Typical battery life
Non-laser mode: 22 hrs;
(Alkaline)
Laser Models:12 hrs
Weight 222g
Dimension 111*50*172mm
MADE IN CHINA
6
Emissivity
0.70
0.50
0.98
0.94
0.93
0.95
0.95
0.95
0.90
0.98
0.90
0.80
0.94
0.93
0.94
( 5 )