Sper scientific 850009 User manual

UVA/B Light Meter
850009
Instruction Manual

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UVA/B Light Meter - 850009
Copyright ©2014 by Sper Scientic
ALL RIGHTS RESERVED
The contents of this manual may not be reproduced
or transmitted in any form or by any means electronic,
mechanical, or other means that do not yet exist or may
be developed, including photocopying, recording, or
any information storage and retrieval system without the
express permission from Sper Scientic.

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CONTENTS
INTRODUCTION .............................. 3
FEATURES .................................. 4
MATERIALS SUPPLIED ........................ 4
LCD DISPLAY ................................ 5
BASIC FUNCTIONS ........................... 6
MODE AND UNIT SELECTION ................... 7
MEMORY .................................. 10
UVA/B SENSOR ............................. 12
BATTERY REPLACEMENT .................... 14
MAINTENANCE ............................. 14
SPECIFICATIONS ............................ 15
WARRANTY ................................ 16
INTRODUCTION
The Sper Scientic UVA/B Light Meter (Model 850009)
is a light-weight, portable instrument that measures
damaging UV (ultraviolet) light in both natural and
manmade environments.
The UV Light Meter measures long and medium
wave UV-A/B light for applications such as forensics,
chromatography, electrophoresis and dermatology.
You can use the meter almost anywhere to determine
UV light intensity and avoid the harmful e󰀨ects of
overexposure.

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FEATURES
• Tripod Mounting Socket
• High and low measurement range in milliwatts per
square centimeter (mW/cm2) or microwatts per
square centimeter (µW/cm2)
• Backlit LCD
• Magnetic Mount
• Simultaneous Display of Minimum, Maximum,
Average and Recorded Data
• Zero Point Reset
• Hold Function
• 4 Digit Dual Display
• 20 Points Memory
• Automatic Measuring
• Low Battery Indicator
MATERIAL SUPPLIED
• Meter
• UV Probe
• Magnetic Mount
• 9 Volt Battery
• Instruction Manual
• Hard Carrying Case

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1. Mode
2. Primary Reading
3. Data Log
4. Auto Mode
5. Memory Review
6. Data Hold
7. Record
8. MAX/MIN/AVG
9. Secondary Reading
10. Time Unit
11. Unit of Measure
12. UV Type
13. Low Battery
LCD DISPLAY

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BASIC FUNCTIONS
Power On/O󰀨
1. Press and hold the HOLD button for 2 seconds to
turn the meter on. All symbols on the LCD will appear
for 1 second.
2. Press and hold the HOLD button for 2 seconds to
turn the meter o󰀨. All symbols on the LCD will appear
for 1 second. Release HOLD button.
Reading the LCD Display
1. The primary display indicates measurement value
(also referred to as the “average” value).
2. The secondary display indicates the advanced
functions or data recording (minimum or maximum
reading of the current data set) or your one of your
20 recorded data points.
Meter Function Flow Chart
1. Press MODE to choose the main function
(MAX/MIN/AVG, Zero, Unit, Type or Time). MAX/MIN/
AVG Mode is Normal Mode for this meter and has
several sub-functions as indicated in the diagram on
the next page.

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MODE AND UNIT SELECTION
Mode Selection
1. Press MODE continuously to cycle through MAX/MIN/
AVG, Zero, Unit, Type, and Time Modes, respectively.
Maximum, Minimum and Average/Normal/Current Mode
1. Press MODE continuously to cycle through modes
until you reach MAX/MIN/AVG.
2. The current measured value appears on the
primary display.

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3. The primary reading always displays value of measuring.
The secondary reading displays the outcomes of the
advanced functions or data recording. There ar four
modes of measuring functions. Press Sbutton to change
the mode of measuring: None - Max - Min - Avg.
4. Maximum, minimum and average values will appear
and freeze on the secondary display and will update
only when a new maximum, minimum, or average value
is reached on the primary display. Then the secondary
display updates automatically. The average value on the
secondary display updates according to the detected
maximum and minimum values of the current reading.
5. The Max-Min-Avg values can only be recalled if you
saved each point to the memory. Press Mto save the
current, max, min, or avg value for each data point and
the meter will move to the next data point. The stored
data can hold either one current, max, min, or avg value
for each data point.
6. Press S to reset.
Data Hold
1. While in Normal Mode, press HOLD to freeze the
secondary display value. “HOLD” will appear on the
bottom left corner of the LCD.
2. Press HOLD to cancel Hold Mode.

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Zero Adjustment
1. Press MODE continuously to cycle through modes
until you reach Zero Mode.
2. Cover the sensor. If the main display has a reading
other than zero, perform the zero adjustment.
3. Cover the sensor and press S to zero adjust. The
secondary display indicates the adjustment value
for your reference.
4. Press and hold Sfor 1 second to clear the
adjustment value.
Note…
When the adjustment value is over 10 µW, the
measurement value cannot be o󰀨set. The main display
will show the above range reading, and the secondary
display will show “-Err.” Repeat the zero adjustment
procedure or contact Sper Scientic.
5. In Zero Mode, press M to clear data points 0 to 20.
Unit Selection
1. Press MODE continuously to cycle through modes
until you reach Unit Mode.
2. Press S to choose the unit of measure: µW/cm2or
mW/cm2.
Type Selection
This function is reserved for use in future models.

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MEMORY
Manual Recording
In Normal Mode, press Mto store the current value that
appears on the primary display. The ashing DATA
(01 to 20) icon stops ashing for 2 seconds and moves to
the next storage location. (Refer to Maximum, Minimum
and Average/Normal Mode on pages 10-11 for instructions
on saving max, min, and avg values.)
Auto Recording
To utilize auto recording, you must rst set an interval time
for recording measurement values.
Interval Time Setting
1. Press MODE continuously to cycle through modes
until you reach Time Mode.
2. Continuously press Sto select an interval time for
auto recording of 1, 2, 5, 10, 30 seconds or
1, 3, 5, 10 minutes.
To Auto Record:
1. In Normal Mode, press and hold M for 2 seconds.
“AUTO” appears next to “REC” on the LCD. As soon as
the meter reaches 20 data points, the unit will turn o󰀨.
Recorded data includes: Irradiation intensity,
Max/Min/Avg and unit of measure
2. Press M to cancel Auto-Record Mode.

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Memory Recall
1. In Normal Mode, press HOLD.
2. Press M to enter Memory Mode. “MEM” will
appear above “HOLD” on the LCD.
3. Press Sto review data points 0 to 20 on the
secondary display. Data point 0 indicates the set time
interval between readings when in Auto-Record Mode.
(Refer to “Interval Time Setting” section for instructions.)
If the data were automatically recorded, “AUTO” appears
next to “MEM” during the recall.
4. As you scroll through data points 0 to 20, the saved
minimum, maximum, or average value appears on the
secondary display.
5. The “MAX”, “MIN” or “AVG” icon will appear on the
bottom of the LCD next to the data point number to
indicate whether the secondary display represents a
maximum, minimum, or average value for that data
point. If none of these icons appear, the value represents
a stored value at that data point that is not a minimum,
maximum or average value.
Clear Data
1. Press MODE to select Zero Mode.
2. Press M to clear all 20 stored data points.

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12
Calibration
Point
Wavelength (nm )
CAUTION:
THE UV SENSOR IS A SENSITIVE INSTRUMENT
.
TO PREVENT PREMATURE AGING AND THERMAL
DESTRUCTION OF THE SENSOR, USE THE SENSOR
FOR SHORT -TERM MEASUREMENT IN A SPLASH-
PROOF ENVIRONMENT ONLY. THE HOUSING
TEMPERATURE MUST NOT EXCEED 50°C.
STORE IN A DRY ENVIRONMENT.
Relative Spectral Sensitivity (%)
UVA/B SENSOR

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1. Upper casing
2. Sensor
3. Lower casing
4. Self-tapping
screws
Note…
To avoid wearing the
screw holes, limit the
number of times you
assemble and
disassemble the
probe.
x 1
x 1
x 1
x 5
UVA/B SENSOR
Portable Handheld Use

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BATTERY REPLACEMENT
This unit requires one 9 Volt battery. The icon
indicates a low battery. To replace:
1. Slide o󰀨 battery cover from the back of the unit.
2. Insert a 9V battery ensuring correct polarity.
3. Replace battery cover.
MAINTENANCE
1. Dampen a sponge or soft cloth with soap and water
to clean the housing.
2. Take care to prevent any liquids or moisture from
getting inside the unit during cleaning.

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SPECIFICATIONS
Range 1 µW/cm² to 40.00 mW/cm²
Resolution 1 µW and 0.01 mW/cm²
Accuracy ±4% ±1 digit (@23 ±5ºC)
Wavelength 280 to 400 nm
Calibration Point 365 nm
Temp. Range 0 to 50°C
Sensor Diameter 35 mm
Meter Dimensions 5½" × 2" × 1½"
(140 × 51 × 38 mm)
Weight (with sensor) 8.7 oz (247 g)

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WARRANTY
Sper Scientic warrants this product against defects in
materials and workmanship for a period of ve (5) years
from the date of purchase, and agrees to repair or replace
any defective unit without charge. If your model has since
been discontinued, an equivalent Sper Scientic product
will be substituted if available. This warranty does not cover
probes, batteries, battery leakage, or damage resulting
from accident, tampering, misuse, or abuse of the product.
Opening the meter to expose its electronics will
void the warranty.
To obtain warranty service, ship the unit postage prepaid to:
SPER SCIENTIFIC LTD.
8281 E. Evans Rd., Suite 103
Scottsdale, AZ 85260
The defective unit must be accompanied by a description
of the problem and your return address. Register your
product online at www.sperwarranty.com within 10 days
of purchase.
rev. 1/18/2017