Zero Offset Adjustment of Light Function
Before sarts any light measurements, you should zero the light sensor prior to use in a dark environment. To achieve this, place the light sensor end of the meter under a desktop or flat surface to block any light. Pressing the “Unit/Zero Button” will set set the Lux Meter indication to zero. It is recommended that the zero be checked frequently using the above procedure.

Hold Function
To activate the Hold function pressing the “Hold Button”. Now the current value of the light measurement will freeze and “HOLD” symbol will show on the display. To cancel this function, ress again the “Hold button”.

Data Record
Start the Data Record function by pressing the “Max./Min. Button” once and the “REC” symbol will be shown on the display. Press the “ Max./Min. Button “ once and the “Max” symbol along with the maximum value will appear on the display. Press the “Max./Min. Button” again, the “Min” symbol along with the minimum value will appear on the display.

REED LM-81LX Specifications

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Function selection: With this Reed SD-1128 Light meter, you can choose from 2 measuring functions: Light Meter or Type K/J Thermometer. With the meter powered-on, press and hold the Function Button. The display will flash “LIgHt”, for Light measurement, and “tP” for Type K/J Thermometer measurement. Release the Function Button to choose the displayed function.

Light Measurement: Always plug the Probe into the Probe Input Socket when the SD-1128 is off. Now, power on the meter by pressing the Power Button and Select the “ LIGHT “ function. Hold the Probe Handle and face the Probe Head against the measuring light source. The Display will show the light measurement value.

Zero Adjustment: To test if the instrument shows the measurements value correctly, while taking a Light Measurement, completely cover the light sensor. If the Display does not show value of zero, press and hold the Logger Button until the Display shows a zero value.

Type K/J Thermometer measurement: Select the “tP” function firstly and plug the optional Type K or J Thermocouple Probe into the Type K/J Probe Input Socket. The screen will display a “K”, meaning it is configured for a Type K thermometer probe. The measured temperature will now be displayed on the display screen.

Data Record (Max., Min. reading): With this SD-2228 you can record the maximum and minimum readings of any light measurements thanks to its data record function. Press the REC Button once to start the Data Record function and a “REC” symbol will appear on the display. With the “REC” symbol on the display.Press the REC Button once, and a ”REC. MAX.” symbol along with the maximum value will appear on the display. To delete the maximum value, press the Hold Button once and the display will show a “REC.” symbol only and execute the memory function continuously.Press the REC Button again, and a “REC. MIN.” symbol along with the minimum value will appear on the display. To delete the minimum value, press the Hold Button once, and the display will show a “REC.” symbol only and execute the memory function continuously.

REED SD-1128 Specifications

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Measuring Light Select the desired range (x1 Lux/Fc , x10Lux/Fc, x100Lux/Fc) by turn the Reed ST-1301’s Power/Function/Range switch. Remove the photo detector to the light source in a horizontal position and read the illuminance nominal from the LCD display.
Over-range: If the instrument only displays one “1” in the M.S.D. the input signal is too strong, and a higher range should be selected. When the measurement is completed, replace the photo detector from the light source.
Spectral sensitivity characteristic: To the detector, the applied photo diode with fi lters makes the spectral sensitivity characteristic almost meet C.I.E. (International Commission on Illumination) photopia curve V(y) as the following chart described.

REED ST-1301 Specifications

What’s included with the REED ST-1301

• ST-1301 Light Meter
• Battery
• Carrying Case

Ideal Applications for the REED ST-1301

• Environmental monitoring
• Health & safety checks
• Industrial applications

Battery Replacement

If the sign “BAT” appears on the LCD display, it indicates that the battery should be replaced. Open the battery case and replace the expired battery with new battery. (1 x 12V battery, A23 or equivalent)

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Air Velocity Measurement

For the Air Velocity Measurements start using your Environmental Meter and select the Anemometer function by pressing the “Function Button”. Using the “Unit/Zero Button” choose the unit of the measurements and face the “Air Flow Sensor” to the source of wind. Wait a while until the displayed value becoming stable and note the value indicated.

Temperature Measurement (Thermocouple)
Using a a type K thermocouple probe plugg this into the “Thermocouple Input Socket”. With the “Temperature Function” selected contact the Thermocouple Sensor Head with the object being measured and the reading value will be displayed on the LCD display.

Humidity & Ambient Temperature Measurement
With the LM-8000 into the “Light Measurement” mode, press the “Lux/Ft-cd Button” to select the measurement’s unit (“Lux” or “Ft-cd”). Read the light measurements value on the display. For best results you should zero the light sensor prior to use in a dark environment. To achieve this, place the light sensor end of the meter under a desktop or flat surface to block any light. Press the “Unit/Zero Button” setting the meter indication to zero.

Hold Function
Freeze the current value of the measurements by pressing the “Hold Button”. Press again to release the hold function.

Data Record Function
Start the Data Record function by pressing the “Max./Min. Button” once. With the REC symbol on the display the meter will show the MAX or the MIN records. Switch between MAX and Min value of the measurements by pressing the “Max./Min. Button”. To exit the memory record function, press the “Max./Min. Button” continuously for at least 2 seconds. The display will revert to the current reading.

REED LM-8000 Specifications

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How to use Reed Environmental Meter (SD-9300)

Air velocity/Temperature measurement
Plug the Probe Plug into the Probe Input and power on your Reed SD-9300. When the meter is on, press and hold the Function Button and choose “An” function for Air velocity/temperature measurements. Release the Function Button and confirm your selection. With the “Air velocity” function selected, change the Air velocity unit, by pressing and the Unit Button. The display will flash the units m/S, Km/h, mph, Knot, & FPM. Release the Unit Button to select the displayed unit. The selected unit will be saved as the default.Hold the Probe Handle and face the Anemometer Head against the measuring airflow source. The air velocity measurement value will be displayed on top part of the environmental meter’s display and the lower part of the display will show the air temperature value.

Humidity/Temperature measurement
Plug the Probe Plug into the Probe Input Socket, then power on the Environmental Meter by pressing the Power Button. Using the “function” button choose “rH” function. The top part of the Display will show the %RH value, and the lower part of the Display will show the temperature value.

Type K/J Thermometer measurement
Plug the optional Type K or J Thermocouple Probe into the Type K/J Probe Input Socket. Be sure the Air Velocity Probe is not plugged in. Select the “tP” function. The screen will display a “K”, meaning it is configured for a Type K thermometer probe. The measured temperature will now be displayed on the display screen.

Light Meter measurement
When the meter is off, plug the Probe Plug into the Probe Input Socket, then power on the meter by pressing the Power Button. Power on the instrument and select the “LIgHt” function. Hold the Probe Handle and face the Light Sensor against the measuring light source. The top part of the Display will show the light measurement value. Tochange the Light Meter unit, press and hold the Unit Button, while in the Light Meter Function. The display will flash the units LUX and Ft-cd. Release the Unit Button to select the displayed unit.

Sound Level measurement (optional probe required)
Plug the optional Sound Adapter Plug into the Probe Input Socket and power on the Sound Adapter. Power on the meter by pressing the Power Button. The meter’s Display will show the symbol “Sound” and is ready to take sound level measurements. The display will show the measuring sound value with unit “dB”.

Data Hold and Data Record (Max., Min. reading)
You can freeze the measurement value by pressing the Hold Button during the operation. Press the REC Button once to start the Data Record function. By pressing the REC Button you can switch between the REC MAX reading and the REC MIN reading for the minimum value of the measurements.

Datalogger
Using an optional SD card you can use the datalogger function of the instrument. The information can be logged using Auto Datalogger or Manual Datalogger mode. Using Manual Mode, you have to set the parameters, such as the sampling time, while using Auto mode the setting will be made automatically by the meter.

REED SD-9300 Specifications

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