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Extech Mätutrustning 445702

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445702- -US_V3.3 8/23 en
User Manual
Hygro-Thermometer Clock
Model 445702
Introduction
Congratulations on your purchase of the Extech 445702 Hygro-Thermometer Clock. This instrument
displays Time (12/24 hour clock), Temperature (C or F), and Relative Humidity % simultaneously. The
housing can be wall mounted or placed on a table-top using the built-in tilt stand. Features include
MIN/MAX displays and programmable Alarm Clock. Careful use of this device will provide years of reliable
service.
Specifications
Display Three LCD views for Time, Temperature, & Relative Humidity
Ranges Temperature: 14 to 140oF (-10 to 60oC) Relative Humidity: 10 to 85% ;
Resolution Temperature: 10. o F/C; Humidity: 1%
Accuracy Humidity: ± 6% in the 25 to 80% range & from 32 to 122oF (0 to 50oC)
Temperature: ±1.8 oF (±1oC) from ± 14 to 122oF (-10 to 50oC)
Power supply Battery One (1) ‘AAA’ 1.5V
Low Battery Battery icon appears on the lower LCD when the battery is to be replaced
Dimensions 4.3 x 2.8 x 0.8" (109 x 71 x 20mm)
Weight Approx. 4 oz. (11 ) with battery 3g
Description
1. Clock display
2. Temperature display
3. Humidity display
4. Temp/Humidity Sensor
5. MAX / MIN button
6. RESET / AL (Alarm) button
7. CLOCK butt on
8. ADVANCE button
9. Alarm on-off switch
10. Alarm speaker
11. Tilt Stand
12. Battery compartment
13. Temperature unit switch s
14. Wall mount
Operation
Getting Started
1. Open the battery compartment by sliding the battery compartment cover off in the direction of the
arrow (rear of meter). Remove the battery safety strip. The displays should switch on. If the displays
do not switch on, replace the battery. Replace the battery compartment cover.
2. Remove the clear protective decal from the meter’s displays.
Selecting oC/oF units of measure and the 12/24 clock modes
Use the oC/oF slide switch on the back of the meter to select the desired temperature unit of measure.
When the instrument is programmed for oF temperature operation, the clock will be in the 12-hour mode.
When the instrument is programmed for oC temperature operation, the clock will be in the 24-hour
(military time) mod e.
MAX-MIN Record and Recall Operation
1. Press MAX/MIN. The highest readings recorded since the Reset button was pressed appear in the
display.
2. Press the MAX/MIN button again to display the lowest values since the Reset button was last pressed.
3. Press the RESET button while in the MAX-MIN display to clear the memory and start recording new
MAX-MIN values.
4. Press the MAX/MIN button again to return to normal display operation.
Setting the Clock
1. Press and hold the CLOCK button until the hour digits begin to flash
2. Use the ADVANCE button to set the hour
3. Press the CLOCK button again; the minutes digits will begin to flash
4. Use the ADVANCE button to set the minutes
5. Press the CLOCK button to exit the time setting mode
Setting the Alarm Clock
1. Press the RESET/AL button. e CLK ALARM icon appears on the lowest LCD display and the hours Th
digits will flash.
2. Press the AL/ON OFF button on the rear of the instrument. The alarm BELL icon will appear on the top
LCD display. Press the AL/ON OFF button again if you wish to disable the alarm (alarm bell icon will
switch off).
3. Use the ADVANCE button to select the alarm hour.
4. Press the RESET/AL button again; the minutes digits will flash.
5. Use the ADVANCE button to select the alarm minutes.
6. Press the RESET/AL button to exit. The CHK ALARM icon will switch off and the bell icon will remain on.
7. When the clock time equals the alarm time, the buzzer will sound for 1 minute.
8. To silence the buzzer, press any button on the instrument.
Copyright 2023 Teledyne FLIR Commercial Systems, Inc. ©
All rights reserved including the right of reproduction in whole or in part in any form
ISO-9001 Certified
www.extech.com

Produktspecifikationer

Varumärke: Extech
Kategori: Mätutrustning
Modell: 445702

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