MTP MTP-1210 User manual

MTP
INSTRUCTION MANUAL
DIGITAL ILLUMINANCE METER
MODEL MTP-1210
MTP Instruments

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ⅠINSTRUCTION
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.

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ⅡFEATURES
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

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ⅢSPECIFICATIONS
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 Vλfunction f1’≦6%
Cosine Response: f2’ ≦2%
Accuracy: ±5% rdg±0.5% f.s.
Repeatability: ±3%

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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.

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ⅣNAME OF PARTS AND POSITIONS

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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
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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.
ⅤOPERATING 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.

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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.

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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.