N9005 and N9094 OPERATOR MANUAL
CONTENTS PAGE General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Calibration, Certification and Service . . . . . . . . . . . . . . . . . . . . . 4 1. Introduction to the N9005 and N9094 . . . . . . . . . . . . . . . . . . . . . 5 2. N9005 and N9094 Thermometers with BioCote® Protection . . . 5 3. Overview of Display Symbols . . . . . . . . . . . . . . . . . . . . . .
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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 MICRO-WAVE OVENS.
CALIBRATION, CERTIFICATION AND SERVICE No. 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.
1. INTRODUCTION TO THE N9005 AND N9094 The N9005 and N9094 handheld thermometers represent a leap forward in specification and performance and have a number of new features. Both instruments have the existing Comark premium case for ultimate strength and durability. This offers the highest level of strength, durability and protection against dust and water ingress. The instruments are certified to meet IP68.
3. OVERVIEW OF DISPLAY SYMBOLS A B C D E F J G H I A – Indicates that HOLD has been selected. B – Setting menu item to ON/OFF C – Indicates Low Battery. D – The Set Up menu is active. E – Indicates probe type. F – Main Display for Temperature G – Clock Indicator. H – Display for time and countdown timer. I – Indicates countdown active. J – Alarm indication 4.
5. SWITCHING ON AND OFF Display Test/Mode The ‘ON/OFF’ button on the keypad is used to switch on the thermometer. After a short pause the display will show the current model of the instrument and will then revert to normal temperature display. The current time is also permanently displayed on the LCD. 6. DATA HOLD The N9005 and N9094 thermometers have a data hold facility. If the ‘II’ button is pressed at any time during normal temperature mode, the current temperature will be held on the display.
. SET UP MENU The N9005 and N9094 thermometers have a hidden menu structure that is used to set up a number of parameters within the instrument. The Set Up Menu can be entered when the instrument is switched on. If the instrument is already on, it must be turned off. Press the countdown button and keep this held down while pressing the on button to switch the instrument on. After the thermometer has completed its self-checks, it will enter the menu. N.B.
9.4 Type – the display will show ‘tYPE’ Use either the countdown timer button or the hold button to scroll between thermistor sensors plus either type T or K thermocouples. The default is thermistor and type T, with the latter for probes with brown or blue leads. Thermistor and type K is available for probes with either red or green leads. 9.5 High Alarm – the display will show ‘HIAL’ Use the countdown button and the hold button to select high alarm on or off.
10. BEFORE USING YOUR THERMOMETER Before using the thermometer make sure you have the right probe for the job. There are specific probes for measuring product, air, ‘between pack’, surface and deep fat temperatures. For permanent installation there is also a choice of ‘damped’ sensors and food simulants. The N9094 is compatible with thermistor and type T and K thermocouple sensors to give ultimate system accuracy and fastest speed of response.
Should you wish to check the accuracy of your thermometer at other temperatures it is more difficult without sophisticated equipment. If you intend to use your thermometer to check other equipment or processes as part of a BS5750/ISO9000 procedure or to check compliance with other codes of practice, you may require either UKAS or National Standards certification. Comark can offer calibration to both standards. Please contact our UKAS accredited laboratory for further details. 11.
Fast Air Probe For air temperatures always use the fast response air probes. Try to place the probe in a moving air flow, or if you can wave the probe around to speed up the response. (Still air is a very good thermal insulator so in a closed refrigerator you may need to wait minutes for the readings to finally stabilise). Order: AK28M FIG.2 AK28M FAST AIR PROBE (MAX. TEMP.
Deep Fat Probe For temperature measurement in deep fat fryers. This probe is made from a very flexible material that can be reshaped time and time again. Crank the shaft of the probe so that the fat temperature can be measured without your hand needing to be above the fat itself. Never take the measurement with your hand directly above the fat. Take adequate precautions. Remember the probe will be very hot on withdrawal from the fat. Order: IT21L FIG.5 IT21L DEEP FAT PROBE (MAX. TEMP.
13. CARE OF THE THERMOMETER WARNING The N9005 and N9094 thermometers are dust and waterproof as stated in the specifications and will withstand harsh environments. Use a damp cloth or warm soapy water to remove deposits and prevent them from hardening or becoming sticky. Do not use solvent-based cleaners or methylated spirits, etc. Caution: Do not place any thermometer in a dishwasher.
14. SEALED FOR LIFE BATTERY The N9005 and N9094 have a long life Lithium cell fitted inside the sealed battery compartment on the reverse of the instrument. This is designed to last up to 10 years in normal usage. However should the symbol BAT appears on the display when the battery voltage has reduced. Battery replacement is recommended at this time. This can only be carried out by Comark or Approved Distributor so please return the instrument as appropriate for battery replacement.
15. SPECIFICATION Sensor Types Thermistor (PST) Type T Thermocouple Type K Thermocouple Measurement Range Thermistor –50°C to +150°C, –58°F to +302°F Type T –200°C to 400°C, –328°F to +752°F Type K –200°C to +1372°C, –328°F to +2501°F Scales °C and °F Displayed Resolution > -100° < +1000°C ≤ -100° ≥ +1000°C 0.
Comark Instruments 52 Hurricane Way, Norwich, Norfolk, NR6 6JB United Kingdom Tel: +44 844 815 6599 Fax: +44 844 815 6598 Email: sales@comarkinstruments.com Website: www.comarkinstruments.com Comark Instruments PO Box 500, Beaverton, OR 97077 USA Tel: 503 643 5204 Fax: 503 644 5859 Email: sales@comarkusacom Website: www.comarkusa.com © Comark Instruments Stock No.
