MTP Instruments - Process Instruments in Canada

MTP Instruments - Process Instruments in Canada
Digital Measurement Metrology, Inc
MTP
INSTRUCTION
MANUAL
DIGITAL ILLUMINANCE
METER
MODEL MTP-1210
MTP Instruments
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Ⅰ INSTRUCTION
Congratulations on the purchase of your digital
illuminance meter model MTP-1210. Proper use
and care of this meter will provide many years of
reliable service.
 The digital illuminance meter is a precision
instrument used to measure illuminance (lux,
footcandle) in the field.
 It meets CIE photopic spectral response.
 It is fully cosine corrected for the angular
incidence of light.
 The illuminance meter is compact, tough and
easy to handle owing to its construction.

The light sensitive component used in the
meter is a very stable, long-life silicon photo
diode and spectral response filter.
2
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Ⅱ FEATURES

Light-measuring levels ranging form from:
0.01lux~0.1klux/0.01fc~0.01kfc,repeatedly.

High accuracy and fast response.

Data-hold function for holding measuring values.

Unit and sign display for easy reading.

Automatic zeroing.

Meter corrected for spectral relative efficiency.

Correction factor does not need to be manually
calculated for non-standard light sources.

Short rise and fall times.

Peak-hold function for tracing the peak signal of light
pulse with least duration 10μs and keep it.

Capable of selecting measuring mode in lux or fc scale
alternatively.

Auto power off 30 minutes.

Maximum and minimum measurements.

Relative reading & Reset function.

Easy to read large backlit display
3
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Ⅲ SPECIFICATIONS

Display : 3-3/4 digit LCD with high speed 42 segment
bargraph.

Measuring Range: 40.00 lux,400.0 lux,4000 lux,40.00
Kkux and 300.0 klux /40.00 fc,400.0 fc,4000 fc,30.00
kfc.
NOTE: 1fc=10.76lux, 1Klux=1000lux,1Kfc=1000fc

Overrange Display: LCD will show “OL” symbol.

Spectral Response: CIE Photopic. (CIE human eye
response curve).

Spectral Accuracy: CIE Vλ function f1’≦6%

Cosine Response: f2’ ≦2%

Accuracy: ±5% rdg±0.5% f.s.

Repeatability: ±3%
4
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Sampling Rate: 13.3 times/sec of analog bar-graph

indication; 1.3times/sec of digital display.
Photo Detector: One silicon photo diode and spectral

response filter.
Operating temperature & Humidity :

0℃ to 40℃ (32℉to 104℉) & 0% to 80% RH.
Storage Temperature & Humidity :

-10℃ to 50℃ (14℉ to 140℉) & 0% to 70% RH.

Power Source: 1 piece 9V battery.

Photo detector Lead Length: 150cm (approx.);

Photo detector Dimensions: 115L×60W×20H(mm);

Meter Dimensions: 170L x 80W x 45 H

Weight: 390g.

Accessories: Carry case, instruction manual, battery.
5
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Ⅳ NAME OF PARTS AND POSITIONS
6
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
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1.
LCD Display: 3-3/4 digit displays with a maximum
reading of 3999, and the indicating signs of measured
values, unit function symbols and decimal points etc.,
are displayed.
2.
Range Selector key: It indicates 40.00 lux, 400.0 lux,
4000 lux, 40.00 Klux and 300.0 Klux /40.00 fc,400.0
fc,4000 fc,30.00 Kfc total 5 ranges for lux and 4 ranges
for fc.
3.
Power Control key:
The power switch key turns the
7
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
illuminance meter ON or OFF.
4.
MAX/MIN key: Maximum and minimum reading recorder
control key.
5.
RESET key:
Push function reset control key.
6.
BACKLIGHT key: Back ight control key.
7.
REL key: Relative reading control key.
8.
Data-Hold key: Data Hold control key.
9.
Peak Hold key: Peak Hold recorder control key.
10. FC key: Pressing the fc key selects taking measurement
of illuminance in footcandle scale and, 1 footcandle =
10.76 lux.
11. Lux key: Pressing the lux key selects taking
measurement of illuminance in lux scale.
12. Photo detector.
Ⅴ OPERATING INSTRUCTIONS
1.
Power-up: Press the power key to turn the meter ON or
OFF.
2.
Selecting the lux or fc scale: Set the range selection
switch to desired lux or fc range.
8
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
3.
Remove the photo detector cap and face it light source
in a horizontal position.
4.
Read the illuminance nominal from the LCD display.
5.
Overrange: If the instrument only displays “OL”, the
input signal is too strong, and a higher range should be
selected.
6.
Data-Hold mode: Press the hold key to select Data-Hold
mode. When HOLD mode is selected, the illuminance
meter stops all further measurements. Press the HOLD
key again to exit Data-Hold mode. Then it resumes
normal operation.
7.
Peak-Hold recorder mode: Press and hold down PEAK
key until display shows the “CAL” letter, then press
PEAK key cycle through Pmax and Pmin recorder mode,
and expose the photo detector to light pulse measuring
field. Press and hold down PEAK key 2 seconds to exit
PEAK recorder mode, then the meter will resume
normal operation.
9
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
8.
Maximum
and
Minimum
recorder
mode:
Press
MAX/MIN key to cycle through Maximum(MAX) reading,
Minimum(MIN) reading and current reading(MAX/MIN
blink) recorder mode. Press MAX/MIN key two seconds
to exit this mode.
9.
Relative reading mode: Press REL key to enter Relative
mode. The display shows zero value and the current
reading will be stored as a zero-in value. Press again to
exit this mode.
10. Reset mode: Every time this key is pressed, the
selected function (HOLD, MAX/MIN,REL,PEAK except
BACK-LIGHT) ,auto-power-off function and counter will
be reset.
11. Backlight function: Press the backlight key to turn on.
Press again to turn off.
12. When the measurement is completed, replace the photo
detector cap and turn the meter off.
10
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Ⅵ BATTERY CHECK-UP & REPLACEMENT
1.
When the battery power is not sufficient, LCD will
display low battery, and replacement of one new battery
is required.
2.
After turning off the meter, remove the battery cover with
a screwier.
3.
Disconnect the battery from the instrument and replace
it with a standard 9V battery and replace the cover.
Ⅶ SPECTRAL SENSITIVITY CHARACTERISTIC

To the detector, the applied photo diode with filters
makes
almost
the
spectral
meet
sensitivity
C.I.E.
characteristic
(INTERNATIONAL
COMMISSION ON ILLUMINATION) Photopic
curve V (λ) as the following chart described.
11
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Ⅷ MAINTENANCE
1.
The white plastic disc on the top of the detector should
be cleaned with a damp cloth when necessary.
2.
Do not store the instrument where temperature or
humidity is excessively high.
3.
The reference level, as marker on the face plate, is the
tip of the photo detector globe.
4.
The calibration interval for the photo detector will vary
according to operational conditions, but generally the
sensitivity decreases in direct proportion to the product
of luminous intensity by the operational time. In order to
maintain the basic accuracy of the instrument, periodic
calibration is recommended.
12
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Ⅸ RECOMMENDED ILLUMINATION
1fc=10.76Lux
LOCATIONS
OFFICE
Lux
fc
200~750
18~70
Clerical work
700~1,500
65~140
Typing drafting
1,000~2,000
93~186
Visual work at
300~750
28~70
Inspection work
750~1,500
70~140
Electronic parts
1,500~3,000
140~279
150~300
14~28
100~200
9~18
Reception
200~500
18~47
Cashier
750~1,000
70~93
Conference,
Reception room
FACTORY
production line
assembly line
Packing work,
Entrance passage
HOTEL
Public room,
Cloakroom
13
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
STORE
Indoors Stairs
150~200
14~18
750~1,500
70~140
1,500~3,000
140~279
100~200
9~18
300~750
28~70
750~1,500
70~140
100~300
9~28
Class room
200~750
18~70
Laboratory, Library,
500~1,500
47~140
Corridor
Show window,
Packing table
Forefront of show
window
HOSPITAL
Sickroom,
Warehouse
Medical Examination
Room
Operating room,
emergency
treatment
SCHOOL
Auditorium, Indoor
Gymnasium
Drafting, room
14
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
Digital Measurement Metrology, Inc
Warranty Clause
MTP Instruments warrants this instrument to be free
of defects in parts and workmanship for one (1) year
from date of shipment. This warranty does not apply
to defects resulting from action of the user such as
misuse, improper wiring, operation outside of
specification, improper maintenance or repair, or
unauthorized
modification.
MTP Instruments
specifically disclaims any implied warranties or
merchantability or fitness for a specific purpose and
will not be held liable for any direct, indirect, incidental
or consequential damages. MTP Instruments total
liability is limited to repair or replacement of the
product.
15
Digital Measurement Metrology, Inc
PRECISION IS OUR VISION
1-866-960-9400
TM
www.dmm.ca
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