Precision instrumentation
and monitoring solutions
for the food industry.
Why Comark?
Designed for today’s busy food businesses – from manufacturing through
to food service and retail – Comark’s range of thermometers and related
temperature and humidity instruments lead the industry.
For temperature measurement,
choose from a range which includes
both simple and sophisticated hand-held
thermometers, handy pocket digitals
and dials and non-contact infrareds.
Where you need to monitor and
record temperature or humidity
levels to support HACCP procedures,
Comark offers a range of options.
The hand-held N5001 Auditor logs,
monitors and manages virtually any
type of data. Or for 24/7 monitoring,
the versatile Diligence EV and EVt ranges
of stand-alone loggers could provide
the answers. Alternatively, the RF500
wireless monitoring system employs
ground-breaking technology to achieve
unprecedented performance levels in
almost any industry or application.
All Comark instruments come with
a minimum 1 year warranty unless
otherwise stated; all comply with
appropriate food industry standards;
all components are produced from food
grade materials and many products now
®
have BioCote antimicrobial impregnated
into their surfaces to provide an extra line
of defence against cross-contamination.
Comark is certified to ISO 9001 and
operates appropriate internal quality
management systems. Many instruments
are IP rated to classify the degree of
protection against dust and water and the
CE Mark (usually printed on the back of
the instrument) certifies that the product
meets European Health and Safety
Regulations. If required, a certificate of
calibration can be supplied by Comark’s
own UKAS accredited temperature and
humidity calibration laboratory.
All of this, plus knowledgeable,
technically qualified staff, and over
forty years’ experience delivering the
best solutions – that’s why you should
specify Comark.
A separate brochure detailing products for
non-food applications is also available.
Contents
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24
26
27
27
Back cover
RF500 Wireless Monitoring
Diligence EV Data Loggers
EVt Transport Loggers
Logger Starter Kits
BioCote® Protection
Premium Thermometers
Premium Thermometer Kits
HACCP Auditor
Standard Thermometers
Standard Thermometer Kits
Handy HACCP Thermometers
Pocket Digital Thermometers
Dial Thermometers
Special Purpose Thermometers
Timers and Alarms
Infrared Thermometers
Choosing a Temperature Probe
Comark Probe Range
Calibration Equipment
Calibration and Service
Product Warranty
How to buy from Comark
Contact us
RF500 Wireless Monitoring
Delivers exceptional data integrity with no awkward gaps
in your records, and gives you complete peace of mind.
2 YEAR
WARRANTY
The RF500 system provides 24/7 monitoring
of temperature, humidity and door events and
achieves unprecedented levels of efficiency
and reliability through its use of the latest RF
technology with built-in mesh networking,
and its use of transmitters with bi-directional
communications. Key benefits include:
• Accurate records without compromise
• Secure multi-user access to data via the
Internet at any time
• Alarm notification via email, phone or pager
• Transmitters that are accurate and have a
long battery life
• Aids compliance with legislative and
regulatory requirements
• Plus, it’s easy to install, use and maintain
A network of remote sensors and probes
collect the information and transmit it to a
Gateway Unit which manages the system
and stores the data. The result is efficient
and versatile round-the-clock monitoring.
Signal via route B-D blocked by open chill room door.
System automatically re-routes signal via B-F or B-C.
A
B
Manual checks on temperature and humidity
are a thing of the past.
D
C
E
10” Double
Glazing
F
MAIN LAB
G
OFFICES
RF500 does it automatically and, in the event
of readings falling outside pre-set limits, alarm
notification via screens, SMS, email or voice
allows immediate corrective action to be taken.
RF500 answers market demands for a reliable
system which is easy to understand and operate,
but can just as easily be reconfigured or expanded
in line with changing needs.
Transmitters include an LCD and LEDs for
alarm conditions.
Instant alarm notification is via screens, SMS, voice or email
to your PC, PDA, mobile or pager.
4
The powerful Gateway Unit requires no
specialist PC software.
It connects directly to the local area network,
permitting 24/7 single or multi-user access
via the Internet. The system also provides
a full audit trail, electronic signatures and
data protection to help meet HACCP compliance
as required by EU Regulation 852/2004.
It is ideal for applications where protection of
your products and good name are paramount.
• Up to 512 channels
• Up to 128 transmitters
• Up to 10 years’ storage capacity
Stop, start etc.
High alarm limit
shown in red
Low alarm limit
shown in blue
Export function
Mean Kinetic
Temperature value
Transmitter Options
RF512 with an integral temperature sensor plus
connectors for two external thermistor probes
and an external door sensor.
RF513 with integral temperature and humidity
sensors and a connector for an external door
sensor.
RF515 can be connected to a control loop and
programmed to measure an extensive range of
parameters such as pressure, gas, flow, level,
dissolved oxygen, CO2 and many more.
RF516 with a precision temperature transmitter
and integral temperature sensor plus connectors
for one external PT100 probe and
an external door sensor.
For full product details or
an on-site demonstration,
contact the Comark Sales Office
on 0844 (+44 844) 815 6599
5
Diligence EV Data Loggers
Stand-alone temperature and humidity loggers
that remove the risk of human error.
Diligence EV data loggers are lightweight and
small enough to be used almost anywhere. They
can be permanently located or used to monitor
goods in transit. Various models are available for
measuring temperature, humidity and different
process parameters. Long battery life and a large
memory allows logging over extended periods.
Comark EV software is required to program logger
tasks, download and analyse data and keep
permanent records to meet HACCP requirements.
The software provides instant automatic
generation of graphs and allows data to be
exported into Excel, or graphs into Word for
emailing. Two software versions are available,
see Diligence EV Software panel opposite.
2 YEAR
WARRANTY
• LCD display for local readings
• Green/red LEDs to show active and alarm conditions
• Tough, dust and waterproof case to IP67 standard
• Up to 5 years’ battery life
• Ability to log over multiple periods
• Large 32k memory with wraparound, so no lost data:
1 channel: 16,000 samples
2 channels: 8,000 samples
3 channels: 5,300 samples
4 channels: 4,000 samples
5 channels: 3,200 samples
• Infrared interface for programming and
downloading data
• Logging frequency from 1 second to 99 hours
(2 seconds/minute for N2014)
Technical Selector
Displayed
Resolution
Sensor Type
Measurement Range
Accuracy
N2011 0.1°
Thermistor
–40°C to +70°C
System Accuracy at:
Thermistor
Internal sensor: –40°C to +70°C
External/sensors: –40°C to +150°C
(Temperature)
N2012 0.1°
N2013
Temperature: 0.1° Thermistor
Humidity: 0.1% RH
Temperature: –20°C to +60°C
Humidity: 0 to 97% RH non-condensing
Type K Thermocouple –200°C to +1372°C
0.2° up to and
N2014
Type T Thermocouple –200°C to +400°C
including +300°C
Thermistor
–50°C to +150°C
N2015
EVt1*
EVt2*
6
4 digits,
1 decimal place
0.1º
–
Thermistor
4 to 20mA
–20°C to +70°C
–25°C to +50°C: ±0.5°C
–40°C to +80°C: ±1.0°C
–40°C to +150°C: ±2.0°C (typical)
(Humidity N2013 only)
–20°C to +60°C: ±3%
Instrument Accuracy at
20°C: ±5°C + 0.5% of reading
Instrument Accuracy at
20°C: ±0.3% of full scale
±0.5°C
–30°C to +70°C
*EVt1 and EVt2 are described on page 8
N2011
Temperature logger
Single internal sensor for
temperature logging only.
This logger is certified to
meet transport standard
EN12830:1999.
N2014
Multi sensor high
temperature logger
Order code: N2011
N2012
Multi sensor
temperature logger
Single internal temperature sensor and
up to 4 external thermistor temperature
sensors, connected via a Multi-link box
(sold separately). Used in conjunction
with Comark probes, the N2012 can be
used to monitor local temperature
via the internal sensor, plus up to 4
adjacent temperatures, typically
fridges and freezers.
Monitors temperatures from up to
three external Type K or Type T
sensors via an adaptor cable
(sold separately). Use of these
sensors allows a much wider
range of temperatures to be
monitored. The N2014 can also
be used in conjunction with a
single Thermistor probe if high
accuracy over a core temperature
range is required.
Order code: N2014
Order code: N2012
N2013
Combined temperature
and humidity logger
Single fixed external
temperature and
humidity sensors.
Order code: N2013
N2015 mA Logger
The N2015 is designed for
connection into the control
loop of various automated
processes via an ADP50
adaptor cable and can
be programmed to
monitor a wide range
of parameters, typically
pressure, pH and airflow.
Order code: N2015
EV Software
EVSW Software – General use logger software.
Order Code: EVSW
EVSWPRO Software – Professional version of logger
software with security options to aid HACCP
compliance as required by EU regulation 852/2004.
Order Code: EVSWPRO
Accessories
EVTCRU USB computer interface for EVt loggers.
Order Code: EVTCRU
N2000ADP/T Adaptor cable to connect up to
three Type T probes to data logger model N2014.
N2000CRU USB computer interface
Order Code: N2000ADP/T
Order Code: N2000CRU
ADP50 Adaptor cable to connect N2015 loggers
to a sensor transmitter.
N2000BOX Multi-link box to connect up to
four thermistor external sensors to data
logger model N2012.
Order Code: ADP50
A17476 Lithium battery with case seal.
Order Code: N2000BOX
Order Code: A17476
N2000ADP/K Adaptor cable to connect up to
three Type K probes to data logger model N2014.
SSF2 Stainless steel filter N2013.
Order Code: SSF2
Order Code: N2000ADP/K
7
EVt Transport Loggers
When you need to keep a temperature eye on goods
in transit or storage.
EVt loggers are robust, low cost and easy to use
and provide a highly efficient method of logging.
Using Comark EV software, EVt loggers can
be programmed to record the temperature at
various stages of a journey, and the results later
downloaded to a PC for immediate analysis and
permanent records. Shared features include:
EVt1
Single use logger
Supplied pre-programmed but can
be re-programmed.
• Temperature range: –20°C to +70°C
• Battery life: 12 months
Order code: EVT1
• Single button operation
• LCD which shows essential data without
the need for downloading
• LEDs for active and alarm indication
• 1 second to 99 hours logging frequency
• 3000 readings memory capacity
• Display resolution: 0.1°
• System accuracy: ±0.5°C
EVt2
Multi-use logger
Can be reused after each
trip then re-programmed.
This logger is certified to meet
transport standard EN12830:1999.
• Temperature range: –30°C to +70°C
• Battery life: 24 months
See pages 6 & 7 for specifications and
EV Software
Order code: EVT2
N2011 Starter Kit
Logger Starter Kits
• N2011 Logger
• 1 x EVSW Software
• 1 x N2000CRU USB Computer Interface
These expandable kits contain
all you need to start logging.
Order code: N2011STARTERKIT
EVt1
Starter Kit
N2012 Starter Kit
• N2012 Logger
• 1 x EVSW Software
• 1 x N2000CRU USB Computer Interface
• EVt1 Logger
• 1 x EVSW Software
• 1 x EVTCRU USB
Computer Interface
Order code: N2012STARTERKIT
Order code: EVT1STARTERKIT
N2013 Starter Kit
• N2013 Logger
• 1 x EVSW Software
• 1 x N2000CRU USB Computer Interface
EVt2
Starter Kit
• EVt2 Logger
• 1 x EVSW Software
• 1 x EVTCRU USB
Computer Interface
Order code: EVT2STARTERKIT
8
Order code: N2013STARTERKIT
BIG
SAVINGS
when you
order a
starter kit
N2014 Starter Kit
• N2014 Logger
• 1 x EVSW Software
• 1 x N2000CRU USB Computer Interface
Order code: N2014STARTERKIT
Stop!
Think how your
business could
benefit from BioCote
protected instruments.
®
As an extra level of defence against crosscontamination, all the latest Comark
instruments are manufactured with BioCote®
antimicrobial technology impregnated into
the instrument surfaces, keypads and
probe handles.
The technology utilizes silver, a natural
antimicrobial that helps prevent the growth of
bacteria, mould & fungi and lasts for the life
of the instrument. When micro-organisms
come into contact with the silver, their ability
to reproduce is inhibited and they die.
A recent trial by BioCote Ltd and The
University of Wolverhampton Science Park
canteen was conducted to compare
micro-organism levels on a BioCote®
treated Comark thermometer with an
untreated thermometer. The trial was
carried out over an 8 week period.
Swabs were taken from the thermometer
case, keypad and probe handle before
and after each use and the number of
contaminating bacteria was counted.
The treated instrument showed a dramatic
reduction in microbe levels, proving beyond
any doubt that BioCote® protected
instruments are significantly cleaner and
safer to use in sensitive environments.
The actual result was a massive 92.73% reduction in microbe levels!
Only Comark offers thermometers
with Biocote antimicrobial technology
®
Premium Thermometers
For temperature measurement applications when
only the best will do.
These premium thermometers provide
excellent accuracy and incorporate a
range of advanced features designed to
answer the quality control and HACCP
requirements of the professional user.
These include a permanent clock and
countdown timer within the display – with
selectable alarms – to allow probe
insertion times and cooking and cooling
times to be monitored.
All three models have BioCote
antimicrobial impregnated into the
instrument surfaces for increased
protection against cross-contamination –
see page 9 for more details.
®
C22
Dual Sensor
This Thermistor/Type T thermocouple
thermometer has an easy to use
keypad and a large, clear LCD display.
The Thermistor sensor gives greater
accuracy over the all important
–50°C to +150°C food service range,
while the Type T sensor extends the
measurement capability and provides
faster response where required. The case
features a built-in protective boot and is
waterproof to IP67 standard.
• –200°C to +400°C range depending on sensor
• Countdown timer with audible bleep
• Permanent clock display
• Selectable alarm
• Auto switch-off
• Data hold
• Scales °C, °F
Order code: C22
10
2 YEAR
WARRANTY
C28
Single Sensor
The C28 shares all of the case design
and user features of the C22, but the
Type K thermocouple, with its sub-min
connector, makes it suitable for general
food temperature applications over an
extended range up to +600°C, which
covers cooking oil temperatures and
certain types of oven.
• –200°C to +600°C range
• Countdown timer with
audible bleep
• Permanent clock display
• Selectable alarm
• Auto switch-off
• Data hold
• Scales °C, °F
Order code: C28
2 YEAR
WARRANTY
C32
Dual Sensor
The robust C32 thermometer is
tested to meet European Standards
for the temperature monitoring of
quick frozen foodstuffs through the
supply chain (EN13485:2001).
Use with PX37L compliant dual
purpose air/penetration probe
(thermistor) when monitoring quick
frozen foods. The thermometer has
an easy to use keypad, large LCD
and IP65 rating. It is also a perfect
choice for other food applications
where a robust thermometer is
required and any thermistor or
Type T probe with a Lumberg
Connector can be chosen.
• -200°C to +400°C range
depending on sensor
• -50° to +150°C range when
used with PX37L probe for
EN13485:2001 compliant
applications
• Tested to meet
EN13485:2001
• Countdown timer with
audible bleep
• Permanent clock display
• Selectable alarm
• Auto switch-off
• Data hold
• Scales °C, °F
N9094
Triple Sensor
The ultimate food thermometer with
triple sensor compatibility – Type K
thermocouple, Type T thermocouple
and thermistor, all with Lumberg
connection. This combination
provides exceptional accuracy in
the all important –50°C to +150°C
food service range but also allows
a very wide overall measurement
capability, extending from the
coldest freezers to the hottest
commercial ovens and hobs.
An IP68 rated fully waterproof
case adds to its versatility.
• –200°C to +1372°C depending
on sensor
• High accuracy
• Rapid response
• Permanent clock display
• Selectable alarm
• Countdown timer with
audible bleep
• Data hold
• Auto switch-off
• Scales °C, °F
• Interactive menu selection
Order code: C32
2 YEAR
WARRANTY
Order code: N9094
2 YEAR
WARRANTY
Technical Selector
Displayed Resolution
Thermistor
–50°C to +150°C
<±0.3°C
±0.5°C†
Type K Thermocouple
–200°C to +600°C
0.1% ±2°C
>–100°C: 0.1°, <
_–100°C: 1.0°
N9094
System Accuracy at 23°C Battery Life
between 0°C and +70°C
–200°C to +400°C
C28
C32
Measurement
Range
>–100°C: 0.1°, <
_–100°C: 1.0° Type T Thermocouple
C22
† Typical
Sensor Type
Thermistor
–50°C to +150°C
<±0.3°C
Type T Thermocouple
–200°C to +400°C
±0.5°C†
Up to 5 yrs
Thermistor
–50°C to +150°C
<±0.3°C
All types: 10 yrs
–200°C to +400°C
±0.5°C
>–100°C, <+1000°C: 0.1°C
Type T Thermocouple
<
_–100°C, _> +1000°C: 1.0°C
Type K Thermocouple
accuracy with a Comark probe.
Up to 5 yrs
–200°C to +1372°C *See note below
(based on usage of
4 hrs per day, 365 days
per year)
*Instrument accuracy at 23°C, Type K or Type T, full range : 0.1% ±0.2°C.
11
Premium Thermometer Kits
These conveniently packaged kits include the thermometer
and probe selection most appropriate to the application.
N9094
EHO Kit
Food Thermometer kit designed
for Environmental Health Officers.
• N9094 Thermometer
• 1 x ST23L surface probe
• 1 x AT22L air probe
• 1 x PT24L/C penetration probe
• 1 x PW70T probe wipes
• Carry Case
Order Code: N9094EHOKIT
C22
Professional Caterer’s Kit
• C22 thermometer
• 1 x PX22L penetration probe
• 1 x AX24L air probe
• Carry case
Order code: C22PCKIT
C22
Food Kit
• C22 thermometer
• 1 x PX22L penetration probe
Order Code: C22FKIT
Help with HACCP Compliance
Achieving HACCP compliance is now relatively
simple, using the Comark HACCP Auditor integrated
with the HaccpWorks website. Working together with
HaccpWorks and HACCP specialists Hygiene Audit
Systems, Comark can offer a complete service from
establishing the plan, to training, gathering data
efficiently and auditing.
For more information call
0844 (+44 844) 815 6599
12
This service provides multi-site control from one
location, ensuring consistent delivery of your plan
across your operation with cost savings through
expert on-line auditing.
H Y G I E N E
WORKS
AUDIT
S Y S T E M S
HACCP Auditor
Eliminates manual record keeping and maintains all your HACCP,
Due Diligence or H & S records in a convenient database.
N5001
HACCP Auditor
The N5001 is a compact data management tool
which allows you to log, monitor and manage
your HACCP data. It’s easy to programme for almost
any type of check. Use it for temperature checks,
cleaning schedules, actions on damage, recording
quantities, monitoring sell-by dates – you can create
your own bespoke inspection schedules for production
processes unique to your operation.
• Aids HACCP compliance as required by
EU Regulation 852/2004
• Eliminates written records and minimises human error
• Records and stores temperature and
non-temperature variables – e.g. No.of units,
Yes/No responses, dates, temperature profiling etc
• Monitoring of and corrective actions for each
Critical Control Point
• Data is stored in real time and is tamper proof
• Filter data to quickly analyse and find
non-conformance
• Instant audit and traceability of product
• Password protected access for authorised users only
• Due diligence protection
• Compatible with a range of Type K and
T temperature probes
Order code: N5001
Requires software and
communications lead.
Order code: N5001SI
2 YEAR
WARRANTY
Software
The special ‘Auditor’ software
allows you to design your own
series of instrument screens detailing
checks or instructions and prompting
corrective actions where required. The data is stored
in a secure database and can be filtered, sorted and
printed, or exported to stand-alone spreadsheet or
database packages.
Technical Specifications
• Temperature range: –200ºC to +700ºC
• Compatible with Types T and K sensors
• Display: LCD, 128 x 64 pixels
• Display resolution: 0.1ºC
• Memory: Approximately 3000 readings
• Software: Requires Windows 2000, XP or Vista
• Battery life: Up to 500 hours
13
Standard Thermometers
When you just need to measure temperature within
known parameters, you’ll find the instrument you need here.
These single sensor instruments provide similar levels of reliability and accuracy as their more expensive
counterparts, but exclude some of the more sophisticated features like multiple sensor compatibility.
They generally answer the needs of users who don’t wish to pay for features they’ll never use and who
simply need a well-designed, economically priced thermometer to check
temperatures within defined limits.
Catercheck 3
with Thermistor sensor and
permanently fixed probe
With its permanently attached penetration probe,
this instrument is the ideal choice for the routine
inspections of solid and semi-solid foods.
• –40°C to +125°C range
• Thermistor sensor for accurate readings
• Battery life up to 5 years
• Single button On/Off operation
• Auto switch-off
Order Code: Catercheck 3
14
C20
with Thermistor sensor and
Lumberg probe connector
Similar to the Catercheck 3, but a Lumberg
connector allows a range of Thermistor type
probes to be connected, making this instrument
suitable for a broader range of applications.
• –40°C to +125°C range
• Thermistor sensor for accurate readings
• Battery life up to 5 years
• Single button On/Off operation
• Auto switch-off
Order code: C20
C21
with Thermistor sensor,
Lumberg probe connector
and timer
A more sophisticated instrument than the
C20. Includes switchable °C and °F scales,
a permanent clock within the display and
a countdown timer with audible bleep for
monitoring probe insertion times or
cooking/cooling times.
• –50°C to +150°C range
• Countdown timer
• Data hold function
• Scales: °C, °F
• Permanent clock
• Selectable time auto switch-off
Order code: C21
2 YEAR
WARRANTY
C30
Single sensor
The C30 thermometer is tested to
meet European Standards for the
temperature monitoring of quick
frozen foodstuffs through the
supply chain (EN13485:2001).
Use with PX37L compliant dual
purpose air/penetration probe
(thermistor) when monitoring
quick frozen foods. The
thermometer has simple, single
button operation and with IP65
rating it is suitable for wet
environments where a more
robust thermometer is required.
• -40° to +125°C range
• Tested to meet EN13485:2001
• Single button on/off operation
• Permanent clock display
• Data hold
Order code: C30
C26
with Type T sensor,
Sub-min probe
connector and timer
2 YEAR
WARRANTY
Similar specification
and features to the C21,
but the Type T sensor
gives a wider temperature
measurement range.
• –50°C to +400°C range
• Countdown timer
• Scales: °C, °F
• Permanent clock
• Auto switch-off
Order code: C26
2 YEAR
WARRANTY
Technical Selector
Displayed Resolution
Sensor Type
Measurement
Range
Instrument Accuracy at 23°C†
Battery Life
Catercheck 3
0.1º
Thermistor
–40°C to +125°C
±0.5°C (–20ºC to +70ºC)
Up to 5 yrs
C20
0.1º
Thermistor
–40°C to +125°C
±0.5°C (–20ºC to +70ºC)
Up to 5 yrs
C21
>–100°C: 0.1º, _> –100°C: 1.0° Thermistor
–50°C to +150°C
±0.3°C (0ºC to 70ºC)
Up to 5 yrs
C26
>–100°C: 0.1º, <
_–100°C: 1.0° Thermistor
–200°C to +400°C
0.1%±0.2°C (full range)
Up to 5 yrs
C30
0.1º
–40°C to +125°C
±0.5°C (–20ºC to +70ºC)
Up to 5 yrs
† Typical
accuracy with a Comark probe.
Thermistor
15
Standard Thermometer Kits
Here you’ll find a number of neatly packaged instrument and probe
combinations most appropriate for a particular application.
C20
Food Kit
• C20 thermometer
• 1 x PX22L penetration probe
Order code: C20/FKIT
C20
Professional Caterer’s Kit
• C20 thermometer
• 1 x PX22L penetration probe
• 1 x AX24L air probe
• Carry case
Order code: C20/PCKIT
Using thermometers in a food environment
• Cabinet refrigerators/freezers – The thermometer should be placed on the top shelf of the
refrigerator/freezer and left approximately 3-5 minutes to attain an accurate reading. Close the door
as soon as possible to reduce temperature fluctuations.
• Walk-in chillers/freezers – Place the thermometer to the front of the display cabinet and leave for the
temperature to stabilise.
• Chest freezers – Place the thermometer on top of any food in the freezer, close the door and leave
to stabilise.
• Chill display cabinets – Place the thermometer to the front of the display cabinet and leave for the
temperature to stabilise.
• Hot plates, bain-maries etc – Due to the difficulty of monitoring air temperatures around this
equipment it will be necessary to check the temperature of food stored using a thermometer fitted
with the correct probe.
• Delivery – Use infrared or a thermometer fitted with correct probe to identify any temperature
control problems.
For more information call 0844 (+44 844) 815 6599
16
Handy HACCP Thermometers
Some useful ideas to make temperature
checking easier and safer.
P125 Pocketherm
Simple to use folding pocket thermometer
Pocketherm is a fast, accurate and compact thermometer
with a folding penetration probe to allow easy and convenient
stowage in a pocket or a bag. The probe can be angled to suit
the application, and when fully closed it acts as an ‘off’ switch.
As well as a temperature display, coloured LEDs provide
additional quick recognition of key HACCP temperature zones.
• Temperature range: –40°C to +125°C
• Large LCD displays actual temperature
• Buzzer and coloured LEDs give instant indication of frozen,
chilled and cooked temperature zones:
Yellow LED flashes when measured temperature is
below –18°C
Green LED flashes when measured temperature is between
0ºC and 5°C
Red LED flashes when temperature is at or above +70°C
• Tapered probe for fast response
• Auto switch-off to preserve battery
• Accuracy: ±0.5°C
Order code: P125
C11 Series HACCP thermometers
Colour coded to reduce risks from
cross-contamination
C11 HACCP thermometers are available in five
colour options and are ideal for catering and
other food uses where colour coding could
help reduce risks from cross-contamination.
The C11 range of colours can be included in
your HACCP procedures.
• Temperature range: –40°C to +125°C
• Choice of 5 colours for use with different
food types
• Simple single button operation
• Each instrument supplied with one
penetration probe
Order codes
Red C11R
Yellow C11Y
Green C11G
Blue C11B
Orange C11O
17
Pocket Digital Thermometers
Generally designed to answer a particular need, but each
is sufficiently versatile to cover a range of applications.
PDT300
Pen style waterproof
pocket thermometer
Ideal for measuring temperatures
of ‘thin’ foods like burgers or pancakes.
• Measurement range: –50°C to +150°C
• Thin tip for fast response
• Accuracy: ±1°C
Order code: PDT300
KM10
Robust heavy duty pocket
thermometer
Designed for tougher environments
– can survive a 1m drop.
• Measurement range: –40ºC to +150ºC
• Protective sleeve with pocket clip
Order code: KM10
DT400
Waterproof pocket
digital thermometer
Simple to use thermometer,
waterproof and commercial
dishwasher proof too.
• Measurement range:
–20°C to +200°C
• Protective sleeve with pocket clip
• Accuracy: ±0.5°C
• Data hold
Order code: DT400
18
KM12
Pocket digital thermometer
Incorporates extended temperature range
and maximum hold feature.
• Measurement range: –10°C to +200°C
• Displays max, min and
current temperatures
• Heat resistant, waterproof case
• Protective sleeve with pocket clip
• Accuracy: ±1°C
Order code: KM12
Dial Thermometers
Constructed from stainless steel, they feature a plastic
watertight ‘lens’ over an easy to read ‘clock’ style display.
All are supplied with a protective sleeve and accuracy on all models is ±1 division.
TCF220/3K
Meat roasting thermometer
• Measurement range: –18°C to +105°C
with dual °F scale
• Stem length: 125mm
Order code: TCF220/3K
MT200K
For checking ‘cooked meat’
temperatures
Larger dial for greater accuracy over
cooked meat temperature range.
Dishwasher safe and includes adjustable
temperature indicator.
• Measurement range: +60°C to +85°C
with dual °F scale
• Stem length: 120mm
TC100
• Measurement range: –10°C to +100°C
• Stem length: 125mm
Order code: TC100
Order code: MT200K
T220/38A
For steam table temperatures
and hot drinks
Tough, durable, with large easy to read
face and a clip for attaching to jugs
and cups.
• Measurement range: 0°F to 220°F
• Stem length: 200mm
CD400K
Confectionary/deep fry
thermometer
Dishwasher safe and with adjustable
temperature indicator.
• Measurement range: +40ºC to +200ºC
with dual °F scale
• Stem length: 115mm
Order code: CD400K
Order code: T220/38A
19
Special Purpose Thermometers
For checking oven and fridge temperatures.
FG80AK
Fridge/freezer thermometer
RFT2AK
Fridge/freezer thermometer
Easy to read, hangs or stands, filled with
non-toxic spirit.
Hangs or stands, with bold numbers
and colour coded zones to show safe
temperatures or possible spoilages.
• Measurement range: –40°C to +27°C
with dual °F scale
• Measurement range:
–30°C to +30° with dual °F scale
Order code: FG80AK
Order code: RFT2AK
DOT2K
Oven thermometer
Hangs or stands, with bold numbers and
colour coded zones for quick reference.
• Measurement range:
+100°C to +280°C with dual °F scale
Order code: DOT2K
Timers and Alarms
For counting down from 100 minutes or 24 hours.
UTL882
Digital clock/timer
Counts up to or down 24hrs with 1 second
resolution. Clock functions and countdown
timer can operate simultaneously.
• Memory timer to store pre-set time
• Incorporates real time clock, magnet,
pocket clip and stand
Order code: UTL882
UTL264
Digital timer
Extra large digits count down
from 99 minutes 59 seconds,
with buzzer, magnet and stand
Order code: UTL264
20
Infrared Thermometers
For safe, non-contact surface temperature measurement.
Non-contact temperature measurement is
a useful tool throughout the food industry.
Apart from reducing risks from crosscontamination, non-contact also means less
waste as it avoids destructive tests on valuable
products. Infrared thermometers allow quick
non-contact temperature checks to be carried
out and if a problem is identified, further
investigation can be undertaken using a
penetration probe. Comark offers two infrared
thermometers, FoodPro and FoodPro Plus.
The following features apply to both.
• Indicator lights to warn of
potential problems
• Illumination light identifies
target area
• IP54 rated hand washable
instrument case
• Switchable °C / °F scales
• 7 second hold on
the display, with auto
switch-off
FoodPro
Infrared thermometer
Simply point the instrument
at the area to be measured
and read off the temperature
on the display.
• Measurement range: –30°C to
+ 200°C, switchable to °F
• Accuracy for targets at –30°C
to +65°C: 1°C
• Accuracy for targets above
65°C: ±1.5% of reading
Order code: FP
2 YEAR
WARRANTY
FoodPro Plus
Combined infrared and
probe thermometer
Similar to the FoodPro but with
a wider infrared temperature
range, a countdown timer
and a flip-down penetration
probe for more accurate
confirmation of temperature
where a potential problem has
been identified.
• Measurement range (infrared):
–35°C to +275°C
• Measurement range (probe):
–40°C to +200°C
• Infrared accuracy for targets
at –30°C to +65°C: 1°C
• Infrared accuracy for
targets above 65°C: ±1.5%
of reading
• Probe accuracy between
–18°C and +65°C: ±0.5°C
Order code: FPP
2 YEAR
WARRANTY
21
Choosing a Temperature Probe
A comprehensive range that covers virtually every temperature
measurement application.
Comark produces one of the
largest available ranges of
temperature probes, with a probe
for almost every application.
There is a special probe design
and build facility so if you can’t find
what you need within the standard
range, Comark can either modify an
existing probe or supply probes to
customer designs.
Probe Categories
Choosing the right sensor
Comark standard probes fall into four main
categories and each includes probes with
different sensor types:
Penetration probes are used for measuring
the internal, or core temperatures, of solid and
semi-solid materials.
Surface probes are designed for maximum
contact with the surface to be measured.
Air probes are for measuring air and gas
temperatures, but also include food simulant
and damped sensor probes.
Immersion probes measure the temperature
of liquids and semi-solids.
Where required, UKAS certificates of
calibration can be provided for probe and
thermometer combinations.
The choice of sensor will determine the
measurement range, the accuracy and the response
time. The sensor type must also be compatible with
the thermometer you use. Comark standard probes
use two basic sensor types:
1. Thermocouples. These consist of two wires
made of dissimilar materials joined together at the
measurement tip (the hot junction) and connected
at the other end to the instrument (the cold junction).
The two main thermocouples used in Comark food
thermometers are Types K and T. See opposite for
thermocouple limits.
The Type K Thermocouple has a wide measurement
range, responds quickly to temperature changes
and is suitable for general food applications.
The Type T Thermocouple also responds quickly
to temperature changes and generally provides
greater accuracy, but it is effective over a narrower
temperature range.
2. Thermistor (PST) is a semi-conductor sensor
and provides exceptional accuracy but over a much
narrower temperature range.
22
Choosing the right probe
Within the Comark standard probe range you’ll find
probes for general duties as well as ones for more
specialist applications. Try to match the probe to
the job. For example, a low mass flexible air probe
is better suited to accurate air temperature
measurement than a penetration probe which
will take too long to stabilise.
For solid and semi-solid materials use surface
probes for surface measurements. Specialist options
include probes with a rigid flattened stem for sliding
between packs of frozen foods on a pallet or a
specially weighted griddle probe to ensure
consistent cooking temperatures.
Use penetration or immersion probes to check
internal temperatures. Where holes need to be drilled
in solids, use a thermocouple or thermistor probe
and make sure it’s inserted to at least 6 times its
diameter. You can also use a thermal transfer
compound for improved accuracy. Alternatively a
corkscrew probe may be most appropriate.
For liquids use an immersion probe, or you can use
certain penetration probes, but check for possible
corrosive effects on the sensor first and agitate the
liquid for a faster response.
For air and other gasses use an air probe.
Response times are affected by heat transfer
around the sensor, and the smaller the sensor,
the faster the response time. Response is also
affected by air movement. Food simulant and
damped sensor probes have a large mass around
the sensor to slow response times so they don’t
trigger alarms when fridge or freezer doors are
opened or during defrost cycles.
Understanding the Comark probe order code
Category Type
P: Penetration
S: Surface
A: Air
I: Immersion
Sensor Type
K: Type K thermocouple
T: Type T thermocouple
X: Thermistor (PST)
P: PT100
Sequential
Code Number
Connector Type
M: Sub-miniature
L: Lumberg
L8: Lumberg 8-pin,
for N5001
HACCP Auditor
B: Bipole
Connector Types
M:
Sub-miniature
L: Lumberg
L8: 8-pin Lumberg
P K 24 M
B: Bipole
Probe Leads
Comark probe leads are matched to the intended applications
for the probe. The materials used are:
PVC – PVC coiled leads provide ease of use in ambient
temperatures of up to +70°C.
FEP and PTFE – These materials are especially suited to food
probes and can be used in sub-zero temperatures. Steel braided
PTFE leads provide greater strength.
Fibreglass (FG) – Fibreglass insulated leads are used for special
application probes where the lead could be subjected to very high
ambient temperatures of up to +400°C.
Thermocouple Limits
Type
Temperature Range
K
–200°C to +1372°C
N
–200°C to +1300°C
T
–200°C to +400°C
J
–200°C to +1200°C
R, S
–50°C to +1767°C
E
–200°C to +1000°C
B
0°C to +1820°C
23
Sensor Connector
Temp Range
°C
Response Stem Stem
Time Length Dia
(secs)† (mm) (mm)
Lead
Lead
Length Material
(m)
Order
Code
Penetration Probes
PST
PST
PST
PST
T
PST
PX23L
PX24L
L
L
L
L
L
L
–40°C to +150°C
–40°C to +150°C
–40°C to +150°C
–40°C to +150°C
–100°C to +250°C
–40°C to +150°C
5.0
5.0
5.0
5.0
2.0
5.0
100
100
100
100
100
100
3.3
3.3
3.3
3.3
3.3
3.3
0.7
0.7
0.7
0.7
0.7
0.7
FEP
FEP
FEP
FEP
PTFE
FEP
PX22L
PX23L
PX24L
PX25L
PT24L
PX37L*
For incorporating into your HACCP plan, the above probes are
available with coloured end caps. Coiled leads and silicone
impregnated connectors are also available if required. For coiled
leads add /c to order code. For silicone connectors ad /s to order
code. Additional charge for silicone impregnated connectors £10.00.
PX25L
*Probe is certified to meet transport standard EN13485:2001 –
use with C32 and C30 thermometers.
PST
T
L
L
–40°C to +150°C
–100°C to +250°C
0.5
0.5
100
100
1.6
1.6
0.7
0.7
FEP
PTFE
PX16L
PT23L
2.0
2.0
100
100
3.3
3.3
2.5
2.5
PTFE
PTFE
PK23M
PT26L
Fast response food probes.
Oven meat probes for checking
meat and food temperatures
during cooking.
K
T
M
L
–50°C to +250°C
–100°C to +250°C
T
PST
L
L
–100°C to +250°C
–40°C to +150°C
2.0
5.0
100
100
2.4
3.3
–
–
–
–
PT25L
PX33L
PST
T
K
L
L
L
–40°C to +150°C
–100°C to +250°C
–100°C to +250°C
2.0
2.0
2.0
95
95
95
3.3
3.3
3.3
1.0
1.0
1.0
FEP
FEP
FEP
PX31L
PT31L
PK31L
PK23M
Integral plug probes.
PT26L
Penetration probes for use with Diligence EV data loggers.
T
T
PT29L
L
M
–100°C to +250°C
–100°C to +250°C
4.0
4.0
140
140
8.0
8.0
1.0
1.0
PVC
PVC
PT29L
PT29M
250
250
8X2
8X2
1.0
1.0
PVC
PVC
SK38M
ST38L
5.0
15.0
–
–
–
–
1.0
1.0
PTFE
FEP
ST23L
SX23L
–
–
–
1.0
–
SK40M
Corkscrew probes for frozen foods.
PT29M
Surface Probes
Heavy duty pallet probes.
K
T
M
L
–50°C to +250°C
–100°C to +250°C
T
PST
L
L
–40°C to +70°C
–40°C to +70°C
SK38M
4.0
4.0
ST38L
Between pack temperature probes.
K
M
to +260°C
Griddle probe
†The time constant is the time taken for the probe to reach 63% of the value of the temperature change.
Multiply x 3 for the time taken to achieve 95% and by 5 for 99%.
24
Not suitable for Intrinsically Safe applications. Thermocouples: Tolerances relate to BS EN60584–2 (1993), Class A.
Sensor Connector
Temp Range
°C
Response Stem Stem
Time Length Dia
(secs)† (mm) (mm)
Lead
Lead
Length Material
(m)
Order
Code
Air Probes
PST
L
–40°C to +70°C
10.0
100
3.3
0.7
FEP
AX23L
–40°C to +70°C
–40°C to +70°C
10
10
–
–
–
–
1.0
3.0
FEP
FEP
AX24L
AX25L
–100°C to +250°C
2.0
–
–
1.0
PTFE
AT22L
Rigid air probe.
PST
PST
L
L
Flexible air probes.
T
L
Fast response probe with steel braded lead.
PST
B
–40°C to +70°C
10
–
–
1.0
FEP
AX22B
–40°C to +70°C
100
–
–
2.0
FEP
DX31L
30.0
–
8.0
2.0
FEP
DX28L
0.4
75
3.3
–
–
AT25L
1.0
500
3.0
0.7
PTFE
IT21L
–
–
–
2.0
2.0
2.0
PTFE
PTFE
FEP
IT23M
IT23L
IX23L
Flexible air probe.
PST
L
Food simulant probe.
PST
L
–40°C to +70°C
Damped sensor probe.
T
L
–100°C to +250°C
Integral sensor probe.
Immersion Probes
T
L
–200°C to +400°C
Deep fat probe with flexible stem for food applications.
IT23M
T
T
PST
M
L
L
–40°C to +150°C
–40°C to +150°C
–40°C to +150°C
2.0
2.0
5.0
90
90
90
Weighted milk dip probes for dairy applications, also suitable for other liquid dip applications.
IT23L or IX23L
Probe Accessories
EK22M Type K 10m extension lead.
Order Code: EK22M
ADP34 1m lead for PT29L corkscrew probe.
Order Code: ADP34
ADP35 1m lead for PT29M corkscrew probe.
Order Code: ADP35
Probe Wipes
Probes must be kept clean and this
task is easily handled using Comark
antibacterial probe wipes. Available
in a tub of 200 wipes (PW200T),
or alternatively a handy pocket
size pack of 70 wipes (PW70T).
Order Code: PW200T
Order Code: PW70T
Many Comark probe handles have BioCote® antimicrobial protection which provides an extra level
of defence against cross-contamination, an important addition to your own HACCP procedures,
reducing the risk from harmful bacteria which are a hazard in many food environments.
For full details of the Comark probe range check
www.comarkltd.com or contact the Comark Sales Office.
25
Calibration Equipment
Allows you to check the accuracy of the thermometers you are using.
C9040
Temperature simulators
The C9040 comes complete with a UKAS Certificate
of Calibration. A rotating switch allows the accuracy
of a thermometer to be checked at five preset
temperature simulation points. Three models cover
different thermocouple and connector requirements.
• Auto switch-off
• Battery test facility
• Accuracy at 23°C ±0.2°C
KM20REF
Reference thermometer
C9040K
Type K Thermocouple
This accurate Pt100 reference
thermometer is ideal for regular
accuracy checks on the
thermometers you are using.
• Sub-miniature connector
• Simulated temperature points:
-20°C, 0°C, +50°C, +100°C, +500°C
• Auto/manual switch-off
• Range -100°C to +199.9°C
• 5 point UKAS Certificate of
Calibration supplied
at -18°C, 0°C, +8°C, +70°C
and +100°C*
Order code: KM20REF
Order code: C9040K
C9040TM
Type T Thermocouple
C9040TL
Type T Thermocouple
• Sub-miniature connector
• Simulated temperature points:
-18°C, 0°C, +5°C, +70°C, +100°C
• Lumberg connector
• Simulated temperature points:
-18°C, 0°C, +5°C, +70°C, +100°C
Order code: C9040TM
*Different points are available if requested
at the time of ordering. This may incur a
small additional charge.
Test Caps
Each cap simulates a specific temperature to
check your thermistor thermometers. Each cap
has a UKAS Certificate of Calibration.
Test Cap
Order Code
TX21L
TX22L
TX23L
TX24L
TX25L
TX26L
Temperature
Point
–18°C
–5°C
0°C
+3°C
+63°C
+70°C
Order code: Please specify fom list
26
Order code: C9040TL
KM820/VAL
Validator calibration check unit
Specifically designed for checking the accuracy
of infrared and other contact thermometers.
It needs to be used in conjunction with a digital
probe thermometer.
Order code: KM820/VAL
Alternatively, the unit is available within a kit, complete
with a KM20REF thermometer and carrying case.
Order code: KM820/VKIT
Calibration & Service
Comark offers full instrument service and UKAS accredited
temperature and humidity calibration from its own in-house laboratory.
Comark offers full instrument service and UKAS
accredited temperature and humidity calibration
from its own in-house laboratory. Ensure that
your instruments are kept within their calibration
limits by having them checked regularly.
Certificates of Calibration
Certificates of Calibration, often essential as part
of quality assurance systems, can be supplied
when calibration checks are carried out
or with new instruments. These can be provided
from the Comark UKAS (United Kingdom
Accreditation Service) accredited temperature
and humidity calibration laboratory. NPL
traceable certification also available.
On-site Service
Comark provides confidence and convenience
with on-site UKAS accreditation, particularly
suited to RF Wireless Systems and portable
temperature instruments where down-time
could be an issue.
• Accreditation in accordance with the recognised
International Standard ISO/IEC 17025:2005
• Certify your instruments over the range
–40°C to +150°C
• National coverage provided by our team of
specialist engineers
Other services include:
• RF swop-out service where on-site
calibration is impractical
• Thermal mapping for storage, handling and
distribution to ensure optimum performance and
assist with meeting regulatory requirements
For full details contact the Comark Service
Department or email: service@comarkltd.com
Product Warranty
All Comark instruments have a minimum
one year warranty unless otherwise stated.
The warranty period for temperature probes
is for six months and all other probes and
electrodes are unwarranted because the
conditions of use are beyond our control.
The Comark warranty covers manufacturing
defects and component failures on all products
returned to Comark premises and applies
worldwide. The warranty does not affect your
statutory rights. In line with our policy of
continuous development we reserve the right to
alter any product specifications without notice.
All products are covered by our Quality
Management System which is compliant with BS
EN ISO9001:2000 for the design, manufacture,
supply, service, repair and recalibration of
electronic measuring instruments and equipment.
27
How to buy from Comark
Order Direct
Delivery and Charges
Simply call, email or fax the Comark Sales
Office and pay by Visa, MasterCard, Switch
card or cheque. If you intend to place regular
orders, please ask about opening a credit
account. If you already have a credit
account, please quote your account number
on all orders.
Prices exclude VAT at the current rate and
all orders are subject to a delivery charge.
Delivery is charged at £8.00 within the UK
mainland (excludes Northern Ireland and
Highlands and Islands). Prices for other
delivery options and destinations are
available on request. We reserve the right
to change prices without prior notification.
Discounts are available for bulk orders.
Order On-line
You can order directly from our website at
www.comarkltd.com. Simply make your
product selections, click on the ‘Add’ icon
to place in your shopping basket and follow
the on-screen directions.
To contact us
For Sales and Admin.
For Service and Calibration
Telephone: 0844 (+44 844) 815 6599
Telephone: 01603 (+44 1603) 256 647
The Sales Office phones are open from
8.45am to 5.00pm weekdays. Call us for
help and advice to find the right solution.
Alternatively, you can arrange a site visit from
one of our experienced Field Sales Team.
Or you can email: service@comarkltd.com
or Fax 01603 (+44 1603) 256 744
Sales and Administration
Service Department
Or you can email:
salesuk@comarkltd.com - UK and Ireland
salesint@comarkltd.com - International
or Fax: 0844 (+44 844) 815 6598
Comark
Bury Mead Road
Hitchin
Hertfordshire
SG5 1RT
UK
Comark
52 Hurricane Way
Norwich
Norfolk
NR6 6JB
UK
Or click on www.comarkltd.com for full
product details or to buy on-line.
Or write to:
CERTIFICATE No. FM29700
ISO 9001
C191/3/EN © Comark
J45929/01/10
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