Sper scientific 850024 User manual

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Hot Wire Anemometer
SD Card Datalogger
850024
Instruction Manual

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Hot Wire Anemometer SD Card Datalogger 850024
Copyright ©2012 by Sper Scientic
ALL RIGHTS RESERVED
Printed in the USA
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.
TABLE OF CONTENTS
INTRODUCTION .................................................................. 4
FEATURES ........................................................................... 5
MATERIALS SUPPLIED ....................................................... 6
POWER SUPPLY ................................................................ 6
KEYPAD ............................................................................... 7
METER COMPONENTS ...................................................... 8
SETUP MODE .................................................................... 10
MEASUREMENT PROCEDURES ..................................... 14
DATALOGGER ................................................................... 19
BATTERY REPLACEMENT ............................................... 22
TROUBLESHOOTING ....................................................... 22
OPTIONAL ACCESSORIES ............................................... 23
SPECIFICATIONS .............................................................. 24
WARRANTY ....................................................................... 28

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INTRODUCTION
The Sper Scientic Hot Wire Anemometer SD Card
Datalogger (Model 850024) is an extremely accurate
meter with fast response times that reads air temperature
and velocity, and functions as a Type K/J thermocouple
thermometer.
This meter features a real time SD memory card
datalogger. Standard, portable SD memory cards provide
unlimited data storage and upload pre-formatted data
directly to Excel, eliminating the need for cables or
software. Each data set includes temperature, time and date.
FEATURES
• Reads air velocity and temperature and functions as a Type
K/J thermometer
• Telescopic Hot Wire Probe provides high accuracy in high
and low velocities
• SD memory card datalogger
• Manual datalogger option
• Fast response time for air temperature
• Highly accurate microcomputer circuit
• Direct upload of data to Excel
• Telescopic probe for measuring exibility
• Internal clock and calendar
• Touch-tone
• Tripod mounting screw
• Built-in tabletop stand
• Maximum and minimum
• Hold function
• Auto-power-o󰀨
• Low battery indicator
• Backlight

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MATERIALS SUPPLIED
• Meter
• Telescopic Hot Wire Probe
• SD Card
• 6 AA Batteries
• Instruction Manual
• Hard Carrying Case
POWER SUPPLY
This meter can be powered by six AA (1.5 V, UM3) batteries
or an optional 9 Volt DC adapter. See page 22 for battery
replacement instructions.
Plug the adaptor into the power port labeled “DC 9V,” located
on the side of the meter.
Note…
When using the adapter to run the meter, the meter will remain
permanently on and the POWER button will be disabled.
KEYPAD
LCD
Display
POWER
(ESC,
Backlight)
SET (▼,
TIME
CHECK)
LOGGER (▲ ,
SAMPLING
TIME
CHECK)
FUNCTION/
HOLD/NEXT
REC/ENTER/
UNIT

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METER COMPONENTS
Top of Meter
Bottom of Meter
Side of Meter
Anemometer Probe
Input Socket
Type K/J
Thermometer
Socket
SD Card
Socket
RESET
RS232 Output
DC 9V Adapter
Input Socket
METER COMPONENTS
Back of Meter
Probe
Tripod
Mounting
Screw
Battery Cover
Screws
Battery
Compartment/
Cover
Stand
Sensing Head
Telescope
Probe Probe Plug

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SETUP MODE
The advanced Setup Mode allows you to customize the
following meter preferences and defaults:
• Real Time Clock
• Decimal Type
• Auto Power O󰀨
• Touch-Tone
• Thermometer Type K/J
• Temperature Units
• Sampling Time
• SD Memory Card Format
Note…
The setup functions can be performed under any parameter
but not while utilizing the datalogger function. Once
selections are saved, the meter will default to the selected
preferences when the meter is turned o󰀨 and on again.
Once a selection is saved, the meter automatically advances
to the next setup function (i.e., after setting the real time
clock, the meter will automatically enter the decimal type
setup function).
1. Press POWER to turn the meter on.
2. Press SET for 2 seconds or longer to enter Setup Mode.
3. Press ENTER to cycle through the setup functions. Then
press ENTER again.
Note…
Press ESC to exit Setup Mode. The meter will return to
Normal Mode. Real Time Clock
SETUP MODE
Real Time Clock
1. Enter the clock function from Setup Mode
(see page 10). “dAtE” appears on the LCD.
2. Press ENTER. The year will appear on the LCD.
3. Press ▲ or ▼ to adjust the value. Press ENTER to
save the value.
4. Repeat Step 3 to adjust the month, date, hour, minute
and second.
Note…
This procedure adjusts the meter’s internal clock. The
internal clock will function when the meter is turned o󰀨 but
only when the batteries have adequate power (not with low
battery power.)
Decimal Type
Although the decimal is commonly expressed as the “.”
symbol (such as 20.6 or 1000.53), some (European)
countries use a “,” symbol to represent the decimal (such as
20,6 or 1000,53). The meter defaults to the period symbol.
To adjust:
1. Enter the decimal type function from Setup Mode
(see page 10). “dEC” appears on the LCD.
2. Press ▲ or ▼ to select Basic (.) or Euro (,).
Press ENTER to save the selection.

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SETUP MODE
Auto Power O󰀨
The meter automatically turns o󰀨 after 10 minutes of
inactivity, however this function can be disabled.
1. Enter the auto power o󰀨 function from Setup Mode
(see page 10). “PoFF” appears on the LCD.
2. Press ▲ or ▼ to select yes (auto power off enabled)
or no (auto power off disabled). Press ENTER to save
the selection.
Touch-Tone
1. Enter the touch-tone function from Setup Mode
(see page 10). “bEEP” appears on the LCD.
2. Press ▲ or ▼ to select yes (touch-tone enabled) or no
(touch-tone disabled). Press ENTER to save the selection.
Thermometer Type K/J
1. Enter the thermometer type function from Setup Mode
(see page 10). “tYPE” appears on the LCD.
2. Press ▲ or ▼ to select K or J. Press ENTER to save
the selection.
Temperature Units
1. Enter the temperature units function from Setup Mode
(see page 10). “t-CF” appears on the LCD.
2. Press ▲ or ▼ to select C (degrees Celcius) or F (degrees
Fahrenheit). Press ENTER to save the selection.
SETUP MODE
Sampling Time
The sampling time is the time allotted between successive
measurements. To adjust the sampling time (in seconds):
1. Enter the sampling time function from Setup Mode
(see page 10). “SP-t” appears on the LCD.
2. Press ▲ or ▼ to adjust the value (0, 1, 2, 5, 10,
30, 60, 120, 300, 600, 800, 1800, 3600 seconds).
Press ENTER to save the value.
SD Memory Card Format
Enabling this function will format the SD memory card to
work specically with your meter. Formatting the SD card
will erase any previous memory on the card. New SD cards
should be formatted to work with your meter.
1. Enter the SD memory card format function from Setup
Mode (see page 10). “Sd F” appears on the LCD.
2. Press ▲ or ▼ to select yes (format the SD memory card)
or no (do not format the SD memory card). Press ENTER
to conrm your selection. If selecting yes, “YES Enter” will
appear on the LCD, press ENTER again and the meter
will format the SD card.

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MEASUREMENT PROCEDURES
Turning the Unit On/O󰀨
1. Press POWER to turn the meter on.
2. Press and hold POWER for 2 seconds to turn
the meter o󰀨.
Selecting the Function
1. Press and hold FUNC to cycle through the options
listed below. Release FUNC when you reach the
desired function.
• Air velocity/temperature: “An” appears on the LCD.
• Type K/J thermometer: “tP” appears on the LCD.
Note…
The meter will default to the last function setting used when
it is turned o󰀨 and on again.
Selecting the Air Velocity Unit
1. To select the air velocity unit, press and hold UNIT.
The meter will cycle through m/S, Km/h, mph, Knot,
FPM in sequence.
2. Release UNIT when the desired unit appears on the LCD.
Note…
To change the temperature unit, see page 12.
MEASUREMENT PROCEDURES
Air Velocity and Air Temperature
1. Press POWER to turn the meter on.
2. Plug the anemometer probe plug into the anemometer
probe input socket.
3. Press and hold FUNC to cycle through the options until
“An” appears on the LCD. Release the FUNC button.
4. Hold the probe handle and point the directional mark on
the probe head toward the air ow. The air velocity
value appears on the upper display and the air
temperature value appears on the lower display.
Note….
Do not use ngers or any tools to touch the air velocity
sensor, as it could damage the unit and void the warranty.
Point the white dot indicator on the probe head toward the
air ow.
When the probe
is not used, the
sensor cover
should be in the
up position.
Probe Handle
 
Direction mark
Air velocity sensor
Sensor cover
slides down when
using the probe.


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MEASUREMENT PROCEDURES
Type K/J Thermometer
1. Press POWER to turn the meter on.
2. Press and hold FUNC to cycle through the options until
“tP” appears on the LCD. Release the FUNC button.
3. The anemometer probe must be disconnected from
the meter to obtain accurate Type K/J readings.
4. Plug a thermocouple temperature probe (type K or J) into
the type K/J thermometer socket. The LCD will display the
measurement value from the temperature probe.
5. “K” or “J” appear on the LCD to indicate the type
of thermometer.
Note…
When using the meter for the rst time, the meter will default
to K type thermocouple. See page 12 for instructions on
selecting the thermocouple type.
Hold Function
1. When measuring any parameter, press HOLD to
freeze the reading on the display. “HOLD” will appear
on the LCD.
2. Press HOLD again to release the hold function.
“HOLD” will disappear from the LCD.
MEASUREMENT PROCEDURES
Maximum and Minimum
To record maximum and minimum readings:
1. When measuring any parameter, press REC to begin
recording the maximum and minimum values. “REC”
appears on the LCD.
2. Press REC. The maximum value and “REC MAX” will
appear on the LCD.
3. Press REC. The minimum value and “REC MIN” will
appear on the LCD.
4. To delete the maximum or minimum value, press HOLD.
“REC” appears on the LCD and the meter will begin
recording the maximum and minimum values again.
5. To exit the min/max function, press and hold REC
for 2 seconds or longer. The meter will return to
Normal Mode.
Note…
The meter cannot be turned o󰀨 from the memory record
function. Exit the function, then press and hold POWER to
turn the meter o󰀨.

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MEASUREMENT PROCEDURES
Backlight
The backlight turns on automatically when the meter is
turned on.
Press to turn the backlight o󰀨.
Press to turn the backlight on.
View Real Time Clock
To view the time function during normal measurement
(not during datalogging):
Press TIME CHECK. The time information (Year, Month/
Date, Hour/Minute) will appear on the lower
display of the LCD.
View Sampling Time
To view the sampling time function during normal
measurement (not during datalogging):
Press SAMPLING CHECK. The sampling time
(in seconds) will appear on the lower display of the LCD.
DATALOGGER
Preparing the Datalogger
1. Insert the SD card into the SD card socket on the
bottom of the meter, ensuring that the front of the SD card
faces the back of the meter.
2. Format the SD card as needed (see page 13).
3. Set the real time clock if using the meter for the rst time
(see page 11).
4. Set the decimal type if using the meter for the rst time
(see page 11).
Auto Datalogging
1. Set the sampling time to ≥ 1 second (see page 13).
2. Press REC. “REC” will appear on the LCD.
3. Press LOGGER. “REC” will ash on the LCD and the
alarm will sound while the measurement data and time
information are saved to memory.
4. To pause datalogging, press LOGGER. The meter will
temporarily stop recording and “REC” will stop ashing on
the LCD. Press LOGGER again to resume
datalogging. “REC” will ash on the LCD.
5. To nish datalogging, press LOGGER to pause
datalogging, then press REC for 2 seconds or longer.
“REC” will disappear from the LCD to indicate that
datalogging has ended.