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C.A 848
■ Thermo-hygromètre
■ Thermo-hygrometer
■ Thermo-Hygrometer
■ Termoigrometr o
■ Termohigrómetro
FRANÇAIS
ENGLISH
DEUTSCH
ITALIANO
ESPAÑOL
Notice de fonctionnement
User's manual
Bedienungsanleitung
Libretto d'Istruzioni
Manual de Instrucciones
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Thank you for purchasing a C.A 848 thermo-hygrometer.
This digital thermo-hygrometer is lightweight and especially
easy to use. It is equipped with a highly sensitive capacitive
sensor for measuring hygrometry and a RTD (Pt100) probe
class A for measuring temperature. The screen display indicates
both hygrometry and temperature.
To obtain the best possible service from your instrument:
■ Read these operating instructions carefully.
■ Comply with the conditions of use.
PRECAUTIONS FOR USE
■ If the instrument is subjected to strong ambient temperature
variations, wait 20 minutes after stabilization before resuming
measurement.
■ Comply with the environmental conditions.
■ Never take measurements in atmospheres polluted by
solvents, acetone for example, as this may damage the
sensor.
GUARANTEE
Unless otherwise stated, our guarantee is effective for twelve
months following the date of supply of the equipment (extract
from our General Sales Conditions, available on request).
ENGLISH
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CONTENTS
1. CONTROLS PRESENTATION ........................................ 8
2. OPERATING ..................................................................... 9
3. SPECIFIC FUNCTIONS .................................................... 9
4. SPECIFICATIONS .......................................................... 10
5. MAINTENANCE ............................................................. 10
6. TO ORDER ...................................................................... 11
1. CONTROLS PRESENTATION
1. Units selection button
2. MIN / MAX function activation button
3. Validation b utton
4. ON / OFF and escape function button
5. Measurement freezing button
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2. OPERATING
2.1 Language selection
When the device is off, keep the OK button pressed and then
press the ON / OFF button.
Press HOLD to validate English or press SELECT to validate
French.
2.2 Measurement procedure
1. Activate the device by pressing the ON / OFF button.
2. Choose the desired measurement unit for temperature.
3. Wait a few seconds for the measurements to stabilise.
4. If necessary, freeze the display by pressing HOLD.
3. SPECIFIC FUNCTIONS
3.1 Choosing the measurement units
Press SELECT to enter the menu.
Scroll down the temperature measurement units (°C, °F, K) by
pressing SELECT.
Press OK to validate your choice.
3.2 Minimum and maximum values
For ambient temperature, press MIN / MAX one time to display
the values min "m" and max "M".
Press a second time to display the values for hygrometry.
To escape this function, press ON / OFF / ESC.
3.3 Freezing the measurement
To freeze the measurement on the screen, press HOLD.
To escape, press HOLD again.
3.4 Dew point temperature
To display the dew point temperature with the ambient
temperature, press OK once.
Press twice to display dew point temperature and hygrometry.
Press 3 times to come back to display ambient temperature
and hygrometry.
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4. SPECIFICATIONS
Metrological specifications
Technical features
Conditions of use: 0 to 50°C; < 85 % RH
neutral gas
Storage conditions: 0 to 50°C; 15 to 85 % RH
Power supply: 1 alkaline battery, 9V 6LR6
Device shuts off automatically after 30 minutes.
Dimensions and weight
Instrument: 145 x 75 x 34 mm
Cable: L = 450 mm, extension up to 2.4 m
Probe: Ø = 13 mm, L = 110 mm
Display: 2 lines of 12 characters
38 x 12 mm
Weight: 190 g
Conformity
Electromagnetic Compatibility: complies with NF EN 61326-1.
5. MAINTENANCE
5.1 Cleaning
Clean the casing with a cloth and a little soapy water.
Clean off with a damp cloth.
5.2 Changing battery
- Remove the protective covering
- Remove the battery cover
- Insert a 9V battery
- Replace the battery cover
- Replace the protective covering.
5.3. Metrological verification
It is essential that all measuring instruments are regularly
calibrated.
For checking and calibration of your instrument, please contact
our accredited laboratories (list on request) or the CHAUVIN
ARNOUX subsidiary or your local agent.
Measurement range Resolution Accuracy Measurement units
Hygrom e t ry 5 to 95% RH 0.1 %R H ± 2% R + 1. 8 % RH % RH
Ambi en t
temperature
-20 to +80°C
0.1°C
± 2% R + 0,3 °C °C, °F, K
Dew point
temperature
-20 to +80°C
0.1°C
± 2% R + 0,3 °C °C, °F, K
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5.4 Repairs
■■
■■
■ Repairs under guarantee and outside guarantee.
Please return the product to your distributor.
6. T O ORDER
C.A 848 ................................................................. P01.1563.03
Accessories:
Telescopic extension ........................................... P01.1020.12
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