OBSOLETE

C28 Industrial Thermometer (Type K)

Part No: C28 (3059014)

The C28 Industrial Thermometer is a simple to use, industrial thermometer with Type K Thermocouple for reliable and accurate temperature measurement.

  • Temperature Range: -200°C to +600°C / -328°F to +1112°F
  • Sensor Type: Type K Thermocouple
  • Durable Case with Built-In Protective Boot
  • Warranty: 2 Years

 

C28 Industrial Thermometer (Type K)

The C28 Industrial Thermometer is a simple to use, industrial thermometer with Type K Thermocouple for reliable and accurate temperature measurement. It has an easy to use keypad and large LCD display.

Housed in a robust case with built-in protective rubber boot it can be used in a wide range of applications. Use with any Comark Type K probe with a sub-miniature connector.

  • Large LCD display with permanent clock
  • Auto switch-off conserves battery life
  • Thermocouple sensor for high accuracy
  • Durable polycarbonate case
  • Built-in protective boot
  • BioCote Antimicrobial Protection

The C28 Industrial Thermometer is reliable and accurate for temperature measurement in all food and industrial environments. Housed in a robust case with built-in protective rubber boot, designed for use with a wide range of Comark probes with sub-miniature connector. The features of this Type K Industrial Thermometer include a permanent clock and countdown timer within the display – with selectable alarms – to allow probe insertion times to be monitored.

The case of the C28 Industrial Thermometer is rated to IP67 dust and waterproof standards and Comark also uses BioCote Antimicrobial Protection, the only antimicrobial solution to be awarded HACCP International Certification, to provide an important extra level of defence against cross-contamination. This product is also NSF Certified.

 

Technical Specifications

NameValue
Sensor TypeType K Thermocouple
Temperature Measurement Range-200°C to +600°C / -328°F to +1112°F
Scales°C and °F
Displayed Resolution0.1° @ > -100°, 1° @ ≤ -100°
Instrument Accuracy0.1% ±0.2°C / ±0.4°F full range @ 23°C Ambient
Temperature Coefficientless than ±0.01 % of reading ±0.02 °C per °C (±0.04°F per °F) change from 23°C
Ambient Temperature Range-20°C / -4°F to +50°C /+122°F operating
Display4 digit, 12.5 mm LCD
BatteryTwo Type I.E.C. LR6 Size AA
Battery Life (continuous)Up to 7000 hours
Length152mm / 6 inches
Width58mm / 2.3 inches
Depth22/27mm / 0.9/1.1 inches
Weight178g / 6.3 oz
Environmental ProtectionIP67 BS EN 60529 IEC 529
CertificationNSF Listed
Warranty2 Years

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Documentation

Articles / FAQs

NameDate
My Instrument reads OPEN (plus BAT in top of LCD)

My Instrument reads OPEN (plus BAT in top of LCD)

Comark ‘C’ series instruments incorporate a switch in the battery compartment to ensure that the Thermometer cannot be used if the integrity of the case is compromised and therefore ingress of liquid is possible,  that could lead to damage to the battery compartment or instrument.

Therefore if the Instrument reads OPEN on the Display and BAT is indicated, please ensure the battery compartment door is properly closed, by checking the following:

  • Check location of battery cover in slots in lower part of case; check they are not damaged or missing.
  • Check tightness of the screw in the battery compartment. Do not over tighten.

If OPEN message does not clear, please return for Service.

27th July 2015
My Device is showing unrealistic temperature readings

My Device is showing unrealistic temperature readings

If you have set up your Device correctly, inserted a Sub-Miniature Connector Probe into your Device and taken a temperature reading, only to discover that the temperature recorded is vastly different to that which was expected, then it may be that the Probe Connector was in fact inserted incorrectly.

The Sub-Miniature Connector on all Comark Probes has two prongs, one slightly larger than the other. These prongs are also marked as positive (+) and negative (-) on the cable head itself, as shown below.

Sub_Min_Right_Way_Round_c

The prongs correspond to two similarly shaped slots on the Device, one slightly larger than the other.

In some cases, it may be possible to force the prongs of the Sub-Miniature Cable Connector in the wrong way around. If this is done then the symptoms would be as described above, recorded temperatures that are vastly different to those which were expected.

Sub_Min_Wrong_Way_Round_c

To resolve such an issue, simply unplug the Sub-Miniature Cable Connector, check the prong orientation and then re-insert.

  • Small Slot = Positive
  • Large Slot = Negative

 

4th June 2015
How old is my Comark Product and is it still in Warranty?

How old is my Comark Product and is it still in Warranty?

The serial number on most Comark Products is usually the date of manufacture followed by a unique product number.

For example, 02121234 is (02) for February, (12) for year 2012, and (1234) is the number of the individual product.

This works for all C series Thermometers, Evt2 and N2000 Data Loggers, RF51X Transmitters, KM2xx, PxxxFW, BTxxx etc.

Warranty on most Comark Thermometers is 1 year. However, in reality Comark will give a little over the relevant warranty period to allow for distributor stock.

21st April 2015
My device has corrosion in the battery compartment

My device has corrosion in the battery compartment

This may cause your device to cease functioning, or become dangerous. In all cases, please return your instrument to Comark for servicing.

FPP_010

Ideally, prevention is better than cure for this problem. Check your batteries regularly to ensure they have not leaked, and if you are planning to store the instrument without use for a prolonged period, please consider removing the batteries and storing them separately.

16th April 2015