KM340 - Thermometer Comark - Free user manual and instructions

Product Type	Digital Thermometer
Brand	Comark
Model	KM340
Application	Food, laboratory, industry
Measurement Range	-50 °C to +300 °C
Accuracy	±1 °C
Resolution	0.1 °C
Probe Type	Penetration Probe
Probe Length	120 mm
Dimensions (L x W x H)	50 x 25 x 150 mm
Weight	70 g (with battery)
Power Supply	1 CR2032 button cell
Battery Life	Approximately 200 hours of continuous use
Display	Backlit LCD screen
Main Functions	Instant measurement, temperature hold, auto-off
Maintenance and Cleaning	Clean the probe with a damp cloth and mild soap. Do not immerse the device.
Safety	Do not use for medical applications. Avoid extreme temperatures.
Spare Parts and Repairability	Battery replaceable. Probe not user-replaceable.
Standards	Compliant with CE standards
Warranty	2 years
General Information	Robust portable thermometer for professional use.

Frequently Asked Questions - KM340 Comark

How to turn the Comark KM340 thermometer on and off?

Press the ON/OFF button on top of the device to turn it on. To turn it off, hold the same button for 2 seconds.

What is the temperature range of the KM340?

The KM340 thermometer measures from -50 °C to +300 °C with a resolution of 0.1 °C.

How to replace the battery of the Comark KM340?

Open the battery compartment on the back of the device using a Phillips screwdriver. Replace the old battery with a new CR2032 battery, respecting polarity.

Is the thermometer waterproof?

No, the KM340 is not waterproof. It is splash resistant but must not be immersed in water.

How to clean the thermometer probe?

Clean the probe with a soft damp cloth and mild detergent. Dry it thoroughly before storing the device.

Is the Comark KM340 thermometer suitable for medical use?

No, this thermometer is designed for food and industrial use, not for medical applications.

What to do if the display is blurry or does not turn on?

First check the battery. If it is dead, replace it. If the problem persists, contact Comark customer service.

How to use the temperature hold function?

After taking a measurement, press the HOLD button to freeze the displayed value. Press again to return to real-time measurement.

The thermometer turns off automatically, how to disable this function?

The KM340 is equipped with an auto-off after 10 minutes of inactivity to save battery. This function cannot be disabled.

Where can I download the full manual for the Comark KM340?

The manual is available for free in PDF format on the site notice-facile.com by searching for the KM340 model.

USER MANUAL KM340 Comark

KM340 DIGITAL THERMOMETER OPERATING INSTRUCTIONS

ENGLISH FRANÇAIS DEUTSCH ITALIANO ESPAÑOL

Kane-May

PAGE

ENGLISH

1. GENERAL INFORMATION 4
2. CALIBRATION, CERTIFICATION AND SERVICE 6
3. INTRODUCTION.... 8
4. OPERATING INSTRUCTIONS.... 8

4.1 Selecting the Temperature Scale 8
4.2 Single-Thermocouple Temperature Measurement
4.3 Differential Temperature Measurement...8
4.4 HOLD Mode 9
4.5 MAX Mode 9

KM340 DIGITAL THERMOMETER OPERATING INSTRUCTIONS

1. GENERAL INFORMATION

It is recommended that you read the safety and operation instructions before using this instrument.

WARNING

TO AVOID ELECTRIC SHOCK DO NOT ALLOW ANY PROBE OR SENSOR TO COME INTO CONTACT WITH LIVE ELECTRICAL POWER CONDUCTORS WITH VOLTAGES IN EXCESS OF 30V AC RMS OR 60V DC.

TO AVOID DAMAGE OR BURNS, DO NOT MAKE TEMPERATURE MEASUREMENTS IN MICROWAVE OVENS.

THE ⚠ SYMBOL ON THE INSTRUMENT INDICATES THAT THE OPERATOR MUST REFER TO THE WARNINGS GIVEN HERE.

CAUTION

Temperature Measurement Probes

This precision instrument has been designed for use with the extensive range of Comark temperature probes. The use of other probes may impair the performance and accuracy of the instrument. Full details of Comark probes and sensors can be obtained from Comark Customer Support department or your local distributor.

Repeated sharp flexing can break thermocouple probe leads. To prolong lead life, avoid sharp bends or kinks in the leads, especially near the connector.

CE

This instrument complies with the Electromagnetic Compatibility Directive EN61326-1.

Declarations of Conformity available. Contact Comark Customer Support or your local Distributor.

In line with its policy of continuous development, Comark Instruments reserves the right to alter the instrument specification without prior notice. Further information is available from Comark Instruments or your distributor.

2. CALIBRATION, CERTIFICATION AND SERVICE

0451

Certification

Comark can provide certificates of calibration for its whole product range, to suit ISO 9000 and other quality assurance procedures, food hygiene regulations, HACCPs and environmental regulations. Comark certificates are produced by independent quality controlled processes which compare product performance against agreed National Standards. For peace of mind and best practice Comark recommend annual certification/recalibration.

Two levels of certification are available for infra-red temperature and non temperature instruments, excluding humidity:- UKAS certificates via an external accredited laboratory and NPL traceable certificates from the Comark calibration laboratory.

Three levels of certification are available for contact temperature products and these are detailed here:

a) UKAS Temperature Certification

The Comark UKAS (United Kingdom Accreditation Service) accredited temperature calibration laboratory is one of the finest in the UK. Comark UKAS certificates can offer the lowest uncertainty of 0.01°C and provide independent proof of correct calibration using equipment and procedures audited by UKAS inspectors. The equipment used is fully traceable to the National Physical Laboratory.

b) UKAS Humidity Certification

In addition to the Comark temperature laboratory, the humidity laboratory continues the tradition of

high accuracy certification and a wide range (25% to 90%RH) with uncertainties of 2.8% of reading. This range also includes Dew point measurements.

c) NPL Traceable Certification

Comark NPL certificates are traceable to the National Physical Laboratory and can offer uncertainty as low as 0.3° C.

Conformance

Certificates of conformance can be supplied for new, serviced and recalibrated instruments. These confirm that instruments are within their original manufactured specification.

Service/Repairs

Regular servicing and any required repairs, under warranty or after, are available from the Comark Service Department.

For more information on all Comark certification, calibration and service facilities please call Comark Customer Support or contact your local distributor.

3. INTRODUCTION

This instrument is a portable 3^1/2 digit, compact-sized digital thermometer designed to use external type-K thermocouples as temperature sensors. It is compatible with the full range of Comark type-K thermocouple probes.

4. OPERATING INSTRUCTIONS

4.1 Selecting the Temperature Scale

Readings are displayed in either degrees Celsius (°C) or degrees Fahrenheit (°F). When the thermometer is turned on, it is set to the temperature scale that was in use when the thermometer was last turned off. To change the temperature scale, press the °C or °F key.

4.2 Single-Thermocouple Temperature Measurement

The thermometer displays the temperature of the thermocouple that is connected to the selected input. Press the T2 key to display the temperature of the thermocouple connected to the T2 input. Press the T1 key to display the temperature of the thermocouple connected to the T1 input. The selection cursor indicates which input is selected.

4.3 Differential Temperature Measurement

Differential temperature measurement is selected by pressing the T1-T2 key. This causes the thermometer to display the temperature difference between the two thermocouples (the temperature of thermocouple T1 minus the temperature of thermocouple T2). The selection is indicated by the input selection cursor.

4.4 HOLD Mode

Pressing the HOLD key to enter the Data Hold mode, the "D-H" annunciator is displayed. When HOLD mode is selected, the thermometer holds the present reading and stops all further measurements.

Pressing the HOLD key again cancels HOLD mode, causing the thermometer to resume taking measurements.

4.5 MAX Mode

Press the MAX key to enter the MAX mode. The thermometer then records and updates the maximum value for that input. The MAX annunciator appears on the display. Press the MAX key again to exit the MAX recording mode.

In the MAX mode, press HOLD key to stop the recording, press HOLD again to resume recording.

The maximum function is limited to use on a single temperature scale at a time and for readings which do not make a transition through zero.

5.1 Battery Replacement

Power is supplied by a 9 volt, PP3 battery. The battery sign appears on the LCD display when a replacement is needed. To replace the battery, remove the three screws from the back of the instrument and lift off the front case. Exchange the battery in the protection tube located at the top of the rear cover. Replace the instrument front squarely with the rear cover and secure with the three screws.

FRANÇAIS

CONSIGNES D'UTILISATION

DU THERMOMETRE NUMERIQUE KM340

1. GENERALITES

4.4 Mode HOLD (MAINTIEN)

Temperature Scale	Celsius or Fahrenheit user-selectable
Measurement Range	-50°C to 1300°C, (-58°F to 1999°F)
Resolution	1°C or 1°F
Accuracy	Accuracy is specified for an operating temperature of 23°C (73°F), for 1 year, not including thermocouple error +2, -1°C -50°C to 0°C +4, -2°F -58°F to +32°F ±(0.2% rdg + 1°C) 0°C to 1100°C +0.2, -0.7% rdg ±1°C +1100°C to +1300°C ±(0.2% rdg +2°F) +32°F to 1999°F
Temperature Coefficient including Cold Junction	± 0.01% rdg ±0.04°C per °C change from +23°C
Reading Rate 2.5 times per second
Input Connector Accepts standard miniature thermocouple connectors (flat blades spaced 7.92mm, centre to centre)
Use with two probes To avoid measurement errors due to a continuous electrical circuit when using a probe in T1 and another in T2 at least one probe should have an isolated junction.
Ambient Operating Range 0°C to 50°C (32°F to 122°F)
Storage Temperature -20°C to 60°C (-4°F to 140°F)
Relative Humidity 0% to 80% (0°C to 35°C) (32°F to 95°F) 0% to 70% (35°C to 50°C) (95°F to 122°F)
Display 3	1/2 digit liquid crystal display (LCD) with maximum reading of 1999
Battery Standard 9V PP3 battery (NEDA 1604 IEC 6f22)
Battery Life 200 hours typical with ALKALINE battery
Dimensions (Instrument 147mm(H) x 70mm(W) x 39mm(D)
Weight Instrument 7.8oz (220g)
EMC Protective Boot 4.7oz (133g) Tested to EN61326-1 Criteria B performance

Comark Instruments

52 Hurricane Way

Norwich, Norfolk, NR6 6JB United Kingdom

Tel: [phone]

Fax: [phone]

Email: [e-mail]

Website: www.comarkinstruments.com

Comark Instruments

PO Box 500, Beaverton

OR97077, USA

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Fax: [phone]

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Website: www.comarkusa.com