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2. INTRODUCTION
2.1 Inspection
Examine the shipping carton for any sign of damage. Inspect the
unit and any accessories for damage. If there is any damage then
consult your distributor immediately.
2.2 Description
The LM192 has the following functions and features:
Light intensity measurement to 199900 lux, 19990 fc
Spectral response: CIE photopic
Hold, Max and Min functions
Auto power off
Low battery indication
LCD display with backlight
2.3 Accessories
The LM192 comes with the following accessories:
2 x 1.5V AA batteries
Protective case for safe storage
Instructions
2.4 Battery Installation
Refer to Section 4.1 (Battery Replacement).
3.2 Description of LCD symbols
Battery capacity indicator
Auto power off is active
MIN
Minimum recorded reading is displayed
MAX
Maximum recorded reading is displayed
HOLD
Hold mode is active
lx fc
Units of measurement being displayed
Range
Range indicator
Auto Range
Auto range is active
3.3 Low Battery Indication
If the
symbol is displayed, the battery needs replacing as
measurement accuracy can no longer be guaranteed (See section
4.1 Battery Replacement).
3. OPERATION
3.1 Description of Press Buttons & LM192 Elements
1
2
3
4
MIN
5
MAX
6
HOLD
7
RANGE
8
fc/ lx
9
10
3
4
3.4 Power On/Off
The LM192 will perform a self-test calibration check when powered
up. This requires a completely dark environment so the protective
sensor cap must be left on the sensor when the meter is powered
up.
With the sensor cap fitted, press
flash on the LCD for a few seconds, followed by CAL. Once a value
of 0.0lx appears on the LCD, the calibration is complete. Remove
the sensor cap and place it behind the sensor head on the fixing
mount. The LM192 is now ready for use. To switch the LM192 off,
press the
Please note: If ERR1 appears on the LCD during the self-test
calibration, check that the sensor cap is securely fixed over the
sensor and start the Power-On process again.
3.5 Auto Power Off (APO)
If the unit is inactive for a period of 30 minutes, it will automatically
power off.
5
6
Sensor cap location
Sensor cap
LCD display
Turns the LM192 on/off
Select MIN/MAX measurement
Selects HOLD mode
Selects the preferred measuring range
Select Unit of measurement
Turns the backlight on/off
Battery cover
to start the self-test. CAP will
button once.
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