Extech Instruments SDL500 Bedienungsanleitung

USER GUIDE

Hygro-Thermometer / Datalogger

Model SDL500

2SDL500-EU-EN V1.1 07/13

Introduction

Congratulations on your purchase of the Extech SDL500 Hygro-Thermometer, an SD Logger Series

meter. This meter displays and stores Temperature and Relative Humidity readings from the

supplied probe and Temperature readings from an optional Type J or K Thermocouple probe. WET

BULB and DEW POINT temperature calculations can also be displayed. Logged data readings are

stored on an SD card for transfer to a PC. This meter is shipped fully tested and calibrated and, with

proper use, will provide years of reliable service.

Meter Description

1. Optional Thermocouple Input jack

2. Supplied Relative Humidity / Temperature Probe input jack

3. LCD Display

4. Power ON-OFF

key

5. HOLD and Backlight key

6. MAX-MIN key

7. Up arrow ▲key

8. SET and Clock key

9. Down arrow ▼/ FUNCTION key

10. ENTER and LOG key

11. PC interface jack

12. Reset Button

13. Power Adaptor jack

14. SD card slot

15. Temperature and Humidity sensors

Notes: Items 11 – 13 are located behind the snap-off compartment cover on meter’s right side.

Battery compartment, tilt stand, and tripod mount are located on the rear of the instrument

3SDL500-EU-EN V1.1 07/13

Getting Started

Power ON-OFF

Power the meter by pressing and holding the power button for at least 1.5 seconds.

Press and hold the power button for at least 1.5 seconds to power OFF the meter.

This meter is powered by six (6) 1.5VDC ‘AA’ batteries or by optional AC adaptor. If the meter

will not switch ON please check that fresh batteries are installed in the rear battery compartment

or, in the case of the AC adaptor, check that the adaptor is connected correctly to the meter and

to an AC source.

Connecting the Supplied Relative Humidity/Temperature Probe

The supplied RH/Temperature Probe uses a keyed DIN-style plug to connect to the meter.

Connect the supplied probe to the top right of the meter in the DIN jack labeled ‘Probe Input’.

Press and hold the FUNCTION button until the ‘RH’ display icon appears. Release the button

when this ‘RH’ display icon appears. The RH reading in % are now on the upper, larger LCD

digits and Temperature in degrees ‘C’ or ‘F’ are now on the lower, smaller LCD digits.

Use the Setup Mode to further configure the meter.

Connecting an optional Thermocouple Sensor

The SDL500 accepts an optional Type ‘J’ or Type ‘K’ Thermocouple Temperature sensor.

1. Connect a thermocouple to the sub-miniature jack at the top left of the meter labeled

‘Thermocouple Temp. Probe’.

2. Press and hold the FUNCTION button until the ‘TP’ display icon appears. Release the button

when this ‘TP’ display icon appears. The thermocouple reading in degrees ‘C’ or ‘F’ is now on

the LCD. The thermocouple type (‘J’ or K’) and the unit of measure are also displayed.

3. Use the Setup Mode to further configure the meter.

IMPORTANT SAFETY NOTE: The SDL500 can measure and display temperature up to 1300

(2372

F), however, thermocouple ratings vary widely; ensure that the thermocouple being used

is rated accordingly for the temperature being measured.

If an attempt is made to measure temperatures higher than the thermocouple’s rating, damage

to the thermocouple and the meter can result. If measurements are made outside the range of a

thermocouple personal injury is also possible.

4SDL500-EU-EN V1.1 07/13

Setup Mode

Basic settings at a glance

To view the current configuration of the date and datalogging sampling rate, press the SET button

momentarily. The meter will display the configuration in quick succession. Repeat as necessary to

observe all the information.

Accessing the Setup mode

1. Press and hold the SET button for at least 1.5 seconds to access the Setup menu.

2. Press the SET button momentarily to step through the available parameters. The parameter

type is shown on the bottom of the LCD and the current selection for that type is shown above

it.

3. When a parameter is displayed that is to be changed, use the arrow keys to change the

setting. Press the ENTER button to confirm a change.

4. Press and hold the SET button for at least 1.5 seconds to exit the Setup mode. Note that the

meter automatically switches out of the Setup mode if no key is pressed within 7 seconds.

The available Setup parameters are listed below.

dAtE

Set the clock (Year/Month/Date; Hours/Minutes/Seconds)

SP-t

Set the datalogger sampling rate from 1 to 3600 seconds)

PoFF

Automatic power-off management (Enable or disable the auto-power off function)

bEEP

Set the beeper sound ON/OFF

dEC

Set the numerical format; USA (decimal: 20.00) or European (comma: 20,00)

Sd F

Format the SD memory card

t-CF

Select the temperature unit of measure (

C or

tYPE

Select the thermometer type (‘J’ or ‘K’)

Setting the Clock Time

1. Access the dAtE parameter.

2. Press the ENTER button.

3. Use the arrow buttons to change the YEAR value. Press ENTER to confirm setting.

4. Repeat step 3 above for the MONTH, DAY, HOUR, MINUTE and SECONDS.

5. Press and hold the SET button for at least 1.5 seconds to exit to the normal operation mode (or

wait 7 seconds for the meter to automatically switch to the normal operating mode).

6. The clock will keep accurate time even when the meter is switched off. However, if the

batteries expire the clock will have to be reset after fresh batteries are installed.

Setting the Datalogger Sampling Time (Rate)

1. Access the SP-t parameter.

2. Use the arrow buttons to select the desired sampling rate. The available settings are:

0, 1, 2, 5,

10, 30, 60, 120, 300, 600, 1800, and 3600 seconds.

Press the ENTER button to confirm the entry.

4. Press and hold the SET button for at least 1.5 seconds to exit to the normal operation mode (or

simply wait 7 seconds for the meter to automatically switch to the normal operating mode).

5SDL500-EU-EN V1.1 07/13

Enabling/Disabling the Auto Power OFF Feature

1. Access the PoFF parameter.

2. Use the arrow buttons to select ON (enable) or OFF (disable). With the Auto Power OFF

feature enabled, the meter will automatically switch OFF after 10 minutes of inactivity.

3. Press ENTER to confirm setting.

4. Press and hold the SET button for at least 1.5 seconds to exit to the normal operation mode (or

simply wait 7 seconds for the meter to automatically switch to the normal operating mode).

Set the Beeper Sound ON or OFF

1. Access the bEEP parameter.

2. Use the arrow buttons to select ON or OFF. Press ENTER to confirm setting.

3. Press and hold the SET button for at least 1.5 seconds to exit to the normal operation mode (or

simply wait 7 seconds for the meter to automatically switch to the normal operating mode).

Numerical Format (comma or decimal)

European and USA numerical formats differ. The meter defaults to USA mode where a decimal

point is used to separate units from tenths, i.e. 20.00; The European format uses a comma, i.e.

20,00 to separate units from tenths. To change this setting:

1. Access the dEC parameter.

2. Use the arrow buttons to select USA or EUro. Press ENTER to confirm setting.

3. Press and hold the SET button for at least 1.5 seconds to exit to the normal operation mode (or

simply wait 7 seconds for the meter to automatically switch to the normal operating mode).

SD Card FORMATTING

1. Access the Sd-F parameter.

2. Use the arrow buttons to select YES to format the card (select NO to abort). Note that all data

on the card will be lost if formatting is attempted.

3. Press ENTER to confirm selection.

4. Press ENTER again to re-confirm.

5. The meter will automatically return to the normal operating mode when formatting is complete.

If not, press and hold the SET button for at least 1.5 seconds to exit to the normal operation

mode.

Set the Temperature Units of Measure (°C or °F)

1. Access the t-CF parameter.

2. Use the arrow buttons to select °C or °F. Press ENTER to confirm setting.

3. Press and hold the SET button for at least 1.5 seconds to exit to the normal operation mode (or

simply wait 7 seconds for the meter to automatically switch to the normal operating mode).

Set the Thermometer Type (K, J)

1. Access the tYPE parameter.

2. Use the arrow buttons to select the type. Press ENTER to confirm setting.

3. Press and hold the SET button for at least 1.5 seconds to exit to the normal operation mode (or

simply wait 7 seconds for the meter to automatically switch to the normal operating mode).

6SDL500-EU-EN V1.1 07/13

Measurements and related features

Relative Humidity / Temperature Probe Measurements

1. Connect the supplied Relative Humidity/Temperature Probe to the meter as previously

described.

2. Press and hold the FUNCTION button until the ‘RH’ display icon appears and then release the

button.

3. The LCD display will now show the RH reading in % on the top of the display and the

Temperature reading (measured by the probe NOT the thermocouple) displayed on the bottom

C or

F (use the Setup Mode to change the unit of measure).

4. Dashes are displayed if the supplied Probe is not connected or if the reading is out of range.

5. Note that RH readings require a longer stabilization time to settle than Temperature readings.

Type J/K Thermocouple Measurements

The SDL500 accepts an optional Type ‘J’ or Type ‘K’ Thermocouple Temperature sensor.

1. Connect a thermocouple to the sub-miniature jack at the top left of the meter labeled

‘Thermocouple Temp. Probe’.

2. Press and hold the FUNCTION button until the ‘TP’ display icon appears. Release the button

when this ‘TP’ display icon appears. This allows the user to view the thermocouple reading in

F. The thermocouple type (‘J’ or K’) is also displayed.

3. Use the Setup Mode to change the unit of measure and thermocouple type and to further

configure the meter. Refer to the Setup Mode section below.

IMPORTANT SAFETY NOTE: The SDL500 can measure and display temperature up to 1300

(2372

F), however, thermocouple ratings vary widely; ensure that the thermocouple being used

is rated accordingly for the temperature being measured.

If an attempt is made to measure temperatures higher than the thermocouple’s rating, damage

to the thermocouple and the meter can result. If measurements are attempted outside of the

rated measurement range of a thermocouple personal injury is also possible.

Dew Point Temperature Calculation Display

The SDL500 can display the results of a Dew Point calculation based on Relative Humidity and

Temperature measurements.

Follow the instructions for the ‘Relative Humidity /Temperature Probe Measurements’ section

above, but release the FUNCTION key when the ‘dP’ icon appears. The display will now show the

Dew Point Temperature.

7SDL500-EU-EN V1.1 07/13

Wet Bulb Temperature Calculation Display

The SDL500 can display the results of a Wet Bulb calculation based on Relative Humidity and

Temperature.

Follow the instructions for the ‘Relative Humidity /Temperature Probe Measurements’ section above

but release the FUNCTION key when the ‘_Et’ display icon appears. The display will now show the

Wet Bulb Temperature.

Data Hold

To freeze a measurement on the display, press the HOLD button momentarily. The meter will beep,

the reading will hold, and the HOLD icon will switch on. Press the HOLD button again to release the

display and exit the Data Hold mode returning the meter to the normal operating mode.

Display Backlight

To turn the display backlight ON or OFF, press and hold the backlight button for at least 1.5

seconds. The meter will beep when switching the backlight ON or OFF unless the beeper is

disabled.

MAX-MIN Readings

For a given measurement session, this meter can record the highest (MAX) and the lowest (MIN)

readings for later recall.

1. Press the MAX-MIN button momentarily to access this mode of operation (REC icon appears)

2. The meter is now recording the MAX and MIN readings.

3. Press the MAX-MIN button again to view the current MAX readings (MAX icon appears). The

readings on the display are now the highest readings encountered since the REC icon was

switched on (when the MAX-MIN button was first pressed).

4. Press the MAX-MIN button again to view the current MIN readings (MIN icon appears). The

readings on the display are now the lowest readings encountered since the REC icon was

switched on (when the MAX-MIN button was first pressed).

5. To exit the MAX-MIN mode, press and hold the MAX-MIN button for at least 1.5 seconds. The

meter will beep, the REC-MAX-MIN icons will switch off, the MAX-MIN memory will clear, and

the meter will return to the normal operating mode.

Reset Button

If the meter display or keypad locks, press the RESET button located on the meter’s right side

under the snap-off compartment cover. After pressing the RESET button, power the meter OFF

then ON.

8SDL500-EU-EN V1.1 07/13

Datalogging

Types of Data Recording

Manual Datalogging: Manually log up to 99 readings onto an SD card via push-button press.

Automatic Datalogging: Automatically log data onto an SD memory card where the number of

data points is virtually limited only by the card size. Readings are logged at a rate specified by

the user.

SD Card Information

Insert an SD card (from 1G size up to 16G) into the SD card slot at the bottom of the meter. The

card must be inserted with the front of the card (label side) facing toward the rear of the meter.

If the SD card is being used for the first time it is recommended that the card be formatted and

the logger’s clock set to allow for accurate date/time stamping during datalogging sessions.

Refer to the Setup Mode section for SD card formatting and time/date setting instructions.

European and USA numerical formats differ. The data on the SD card can be formatted for

either format. The meter defaults to USA mode where a decimal point is used to separate units

from tenths, i.e. 20.00. The European format uses a comma, i.e. 20,00. To change this setting,

refer to the Setup Mode section.

Manual Datalogging

In the manual mode the user presses the LOG button to manually log a reading onto the SD card.

1. Set the sampling rate to ‘0’ seconds as described in the Setup Mode section.

2. Press and hold the LOG button for at least 1.5 seconds; the lower portion of the display will

show p-n(n= memory position number 1-99).

3. Press the LOG button momentarily to log a reading into memory. The REC icon will flash each

time a data point is stored (the SCAN SD icon will appear when the meter accesses the card).

4. Use the ▲and ▼buttons to select one of the 99 data memory positions in which to record.

5. To exit the manual datalogging mode, press and hold the LOG button for at least 1.5 seconds.

9SDL500-EU-EN V1.1 07/13

Automatic Datalogging

In automatic datalogging mode the meter takes and stores a reading at a user-specified sampling

rate onto an SD memory card. The meter defaults to a sampling rate of one second. To change the

sampling rate, refer to the Setup Mode section (the sampling rate cannot be ‘0’ for automatic

datalogging):

1. To begin an automatic Datalog session press and hold the LOG button for at least 1.5

seconds.

2. The meter will scan for an SD card and verify that it can be used to store data. If a card is not

inserted or if the card is defective, the meter will display SCAN SD indefinitely. In this case,

switch the meter OFF and try again with a valid SD card.

3. If the SD card is valid, the display will show the LOG icon (or the LOG icon alternating with the

temperature display) and then the REC icon will flash each time that a reading is stored.

4. To pause the datalogger, press the LOG button momentarily. The REC icon will stop flashing.

To resume logging simply press the LOG button again momentarily.

5. To terminate the datalogging session press and hold the LOG button for at least 1.5 seconds.

6. When an SD card is used for the first time a folder is created on the card and named HTB01.

Up to 99 spreadsheet documents (each with 30,000 readings) can be stored in this folder.

7. When datalogging begins a new spreadsheet document named HTB01001.xls is created on

the SD card in the HTB01 folder. The data recorded will be placed in the HTB01001.xls

document until 30,000 readings are reached.

8. If the measurement session exceeds 30,000 readings, a new document will be created

(HTB01002.xls) where another 30,000 readings can be stored. This method continues for up to

99 documents, after which another folder is created (HTB02) where another 99 spreadsheet

documents can be stored. This process continues in this same fashion with folders HTB03

through HTB10 (last allowable folder).

SD Data Card to PC Data Transfer

1. Complete a datalogging session as detailed in above in the previous sections. Hint: For the

first test, simply record a small amount of test data. This is to ensure that the datalogging

process is well understood before committing to critical datalogging.

2. With the meter switched OFF, remove the SD Card.

3. Plug the SD Card directly into a PC SD card reader. If the PC does not have an SD card slot,

use an SD card adaptor (available at most outlets where computer accessories are sold).

4. Power the PC and run a spreadsheet software program. Open the saved documents in the

spreadsheet software program.

10 SDL500-EU-EN V1.1 07/13

Spreadsheet data example

RS-232/USB PC Interface

For streaming of data to a PC via the RS232 Output jack, the optional 407001-USB kit (RS232 to

USB cable and driver CD) along with the 407001 software (available free at

www.extech.com/sdl500) are required.

AC Power Adaptor

This meter is normally powered by six (6) 1.5V ‘AA’ batteries. An optional 9V power adaptor is

available. When the adaptor is used, the meter is permanently powered and the power button will

be disabled.

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