Sper scientific 840020 Bedienungsanleitung

Light Meter (Lux/FC)

840020

Instruction Manual

SPER

SCIENTIFIC LTD.

[email protected]

www.ponpe.com

- 2 -

TABLE OF CONTENTS

1. INTRODUCTION .............................................................................. 2

2. PANEL DESCRIPTION.................................................................... 3

3. OPERATING INSTRUCTIONS

3-A. General Measurement.......................................................... 4

3-B. Hold ....................................................................................... 4

3-C. Peak Hold.............................................................................. 4

3-D. Record Maximum / Minimum .............................................. 4

3-E. Notes and Precautions ........................................................ 5

4. ZERO ADJUSTMENT AND CALIBRATION ................................... 5

5. BATTERY REPLACEMENT ............................................................ 5

6. RS232 SERIAL INTERFACE........................................................... 5-6

7. SPECIFICATIONS ........................................................................... 6-7

8. WARRANTY..................................................................................... 8

1. INTRODUCTION

Monitor light levels anywhere with fast, stable and accurate response.

Results are easily read on the extra large LCD with bar graph, low battery

and over range indications. The color and cosine corrected sensor meets

C.I.E. photopic spectrum. Also features RS232 computer output, max-min,

auto power off, zero adjustment, hold function and a tripod back.

Comes ready to use with a 9V battery, instructions, soft padded case, and

a detachable sensor with cover for easier replacement or repair.

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- 3 -

2. PANEL DESCRIPTION

4 11

8 (side)

POWER HOLD REC.

MAX/MIN

Lux/Fc RANGE

ZERO

1. Sensor Input 2. Display 3. Power Button

4. Hold Button 5. REC. MAX/MIN Button 6. RS232 Cover (lifts up)

7. Lux/FC Button 8. RS-232 Output (see 6) 9. Range Button

10. Zero Button 11. Tripod Screw 12. Stand

13. Battery Cover 14. Sensor Plug 15. Photo Sensor

14 15

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- 4 -

3. OPERATING INSTRUCTIONS

3-A. General Measurement

•Insert the SENSOR (14) plug into the SENSOR INPUT (1) and turn the

meter on by pressing the POWER (3) button.

•Remove the lens cap from the PHOTO SENSOR (15) .

•Select the desired unit of measure by pressing the LUX/FC (7) button.

•Select the maximum range by pressing the RANGE (9) button. If the out

of range indicator "- - - - " appears, select another range or discontinue

use. For the highest accuracy, select the range that offers the highest

resolution (most number of digits after the decimal point).

•Point the PHOTO SENSOR (15) toward the source and read the

results on the display.

•The instrument has an automatic shut off function in order to prolong

battery life. After approximately 10 minutes without activity (no buttons

pushed), the meter will automatically shut off. To disable this feature,

press the REC MAX/MIN (5) button.

•Press the POWER (3) button to manually turn the meter off.

3-B. Hold

•During measurement, press HOLD (4) to freeze the measured value.

•"HOLD" and the value are displayed.

•Press the HOLD (4) button again to exit.

3-C. Peak Hold

•During measurement, press the HOLD (4) button for 2 to 3 seconds.

•“Peak HOLD” and the peak value are displayed and updated if exceeded.

•To erase the peak value, press the HOLD (4) button once (the display will

flash).

•To exit this function, press the HOLD (4) button for at least 2 seconds.

3-D. Record Maximum / Minimum

•Press the REC MAX/MIN (5) button once to enter the recording mode.

"REC" and the recorded values are displayed and continuously updated.

•Press the REC MAX/MIN (5) button as needed to view the recorded Max

and Min values. "REC Max" and the maximum recorded value or "REC

Min" and the minimum recorded value are displayed.

•Note: The Max/Min values are frozen and not updated until the meter

returns to recording mode.

•To return to recording mode, press the HOLD (4) button. "REC" is

displayed without "Max" or "Min".

•To erase the recorded Max/Min values and exit the recording mode, press

the REC MAX/MIN (5) button for at least 2 seconds.

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- 5 -

3-E. Notes and Precautions

•Avoid range overload.

•When using PEAK HOLD (3-C) or REC MAX/MIN (3-D) your

measurements must be within the selected range, if not, the out of

range indicator "- - - -" will be displayed.

•Cover the PHOTO SENSOR (15) with the sensor cap when the meter

is not in use.

•Fluctuations in the reading are often due to shadows or a weak bat-

tery. Also, ambient temperatures and drafts may affect the reading.

•Do not store in areas of high temperature and/or humidity.

•Remove the battery for long-term storage.

4. ZERO ADJUSTMENT AND CALIBRATION

•With the sensor cover securely in place and the meter turned on, use

the RANGE (9) button to select the 40.00 Lux range (digits appear on

the LCD).

•Press the ZERO (10) button and the "0.00 LUX" should be displayed.

•To maintain accuracy, annual laboratory calibration is recommended

and available from Sper Scientific.

5. BATTERY REPLACEMENT

•Replace the battery when the low battery icon is displayed.

•In-spec measurements may be made for several hours after

the low battery indicator appears.

•Remove the BATTERY COVER (13) screw and slide the cover off.

•Replace the battery with a fresh 9V battery (alkaline or heavy duty).

6. RS232 PC SERIAL INTERFACE

Use a small screwdriver to gently lift the RS232 COVER (6) up to expose

the RS232 OUTPUT (8) 3.5 mm terminal. The signal output is a 16-digit

data stream that can be adapted to user-defined applications. A RS232

lead with the following connection is required to link the instrument with the

PC serial interface.

Meter (3.5 mm jack plug) PC (9W ‘D” Connector)

Center Pin.................................. Pin 4 Pin 2 2.2 K

Ground/shield ............................ Pin 2 Pin 5 resistor

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- 6 -

7. SPECIFICATIONS

Display Large 2" x 1.5” (51 mm x 38 mm), 5 digit

display with bar graph indicator.

Out of Range Indicator

"- - - -" appears at the top of the display for

over-range, or at the bottom of the display for

under-range.

Power Supply One 9V battery, current approx. DC 8mA

Operating Environment 32 ~ 122°F (0 ~ 50°C), Less than 80% RH

Weight 9.9 oz (280g)

Dimensions

Main Unit: 7.9 x 2.7 x 1.2" (200 x 68 x 30mm)

Sensor: 3.2 x 2.2 x 0.3" (82 x 55 x 7mm)

Sensor Lead: Extends to appx. 3½ft

Optional Accessories

840057 - RS232 Cable

840094 - RS232 to USB Adaptor Cable

840090 - Water Resistant Instrument Pouch

840092 - Bench-Top Tripod

840093 - Field Tripod

850080 - Software

The 16 digits data stream will be displayed in the following format:

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Each digit indicates the following status:

D0 End Word

D1 & D8

Display reading, D1 = LSD, D8 = MSD

E.g: If the display reading is 1234, then D8 to D1 is:

00001234

D9 Decimal Point (DP), position from right to the left

0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP

D10 0 = Positive 1 = Negative

D11 & D12 Annunciator for Display

Lux = 15, Ft-cd = 16

D13 The upper display data = 1, The lower display data = 2

D14 4

D15 Start Word

RS232: 9600, N, 8, 1

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- 7 -

LIGHT SPECTRUM CHART

100

120

410

430

450

470

490

510

530

550

570

590

610

630

650

670

690

710

730

750

SPER CEI

Unit of

Measure Range In-Range Display Res. Accuracy

Lux

40.00 0 ~ 40,000 0.01

±(3% rdg + 0.5% F.S.)

400.0 36.6 ~ 400.0 0.1

4,000 360 ~ 4,000 1

40,000 3,600 ~ 40,000 10

400,000 10,000 ~ 400,000 100

<100,000 ± (3% rdg +

0.5% F.S.). >100,000

for reference only

Foot

Candle

4.000 0 ~ 3.720 0.00

±(3% rdg + 0.5% F.S.)

40.00 3.35 ~ 37.20 0.01

400.0 33.5 ~ 372.0 0.1

4,000 335 ~ 3,720 1

40,000 930 ~ 37,200 10

< 9,300 ± (3% rdg +

0.5% F.S.). >9,3000

for reference only

Accuracy tested by a standard parallel light, tungsten lamp of 2856°K.

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- 8 -

Rev. 9/21/06

8. WARRANTY

Sper Scientific warrants this product against defects in materials and

workmanship for a period of five (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 Scientific

product will be substituted if available. This warranty does not cover

probes, batteries, or damage resulting from accident, misuse, or abuse

of the product. To obtain warranty service, ship the unit postage

prepaid to:

SPER SCIENTIFIC LTD

7720 E Redfield Rd, Suite 7

Scottsdale, AZ 85260

WWW.SPERSCIENTIFIC.COM

[email protected]

The defective unit must be accompanied by a description of the

problem and your return address. Register your product online or

return your warranty card within 10 days of purchase.

[email protected]

www.ponpe.com

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