Irradian Limited
L202PMS Photometer
2
DISPLAY UNIT
Ranges:
3 full scale autoranging decades measuring
from: 0 to 199.99 lux or cd.m
-2
and 0 to 1999.9 lux or cd.m
-2
and 0 to 19999 lux or cd.m
-2
Resolution 0,01 on range 1.
Accuracy:
Measurement accuracy ±1digit with a
linearity error of <1% from 1 to 20 000.
Absolute calibration accuracy ±3% (illuminance),
±5% (luminance) @ 20°C traceable to
NPL standards.
Refer to Section 5 - Calibration Description.
Controls:
Display backlight on off button.
Display backlight will switch off after a
programmable delay, factory setting 60 seconds.
HOLD/RUN
Display is held at present reading until hold
button is pressed again.
Power on / off button
ZERO
Initiates a zero or background measurement
routine on all three ranges.
STORE
Store the current reading
(holding up to maximum of sixteen values).
RECALL
Display previously stored values.
STORE
(On detector) See front panel store button.
Connectors:
8 pin mini DIN type detector connector.
3.5 mm socket RS232 connector.
Display:
4½ digit lcd display. Character pitch 10 mm.
Display illumination:
An yellow / green large area LED back light
can be switched on to illuminate the display for
readings in low ambient light situations.
Power supply:
PP3 type 9V battery.
Temperature range:
0 to 40°C. 80% RH.
