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Worlds End   Newbury 

EX20 1UE    UK 

                  RG20 8RY 

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www.quantumcryogenics.com

   

 

                                                         

 ATEX-DCT150M-W-28.02.20-00003R5 

 

 

 

    

THE DCT150M-W DIGITEMP DIGITAL THERMOMETER  

    FOR TANKS AND TANK CONTAINERS 

 

 

    

INSTRUCTION MANUAL 

 

 

The  DigiTemp  DCT150M-W  is  a  battery  powered  digital  thermometer  for  tanker  and  tank 

containers, which provides reliable, economic and accurate  temperature monitoring for a wide 

range  of  industrial  applications  in  hazardous  process  areas,  where  potentially  explosive 

atmospheres may be present.  The DCT150M-W has a wide temperature operating range from -

50

°

C to +150

°

C and a guaranteed battery life of 6 years with no maintenance. The DCT150M-W 

wireless  thermometer  provides  real  time  updates  of  temperature  readings  to  communication 

gateways  including  satellite  systems  operating  in  the  IEEE  802.15.4  frequency  range.  The 

DigiTemp DCT150M-W is housed in a robust glass reinforced nylon case with a fully integrated 

sealed  polycarbonate  face  which  is  waterproof  to  IP67  and  which  eliminates  surface 

electrochemical  corrosion  problems.  The  DCT150M-W  is  suitable  for  hostile  environments 

without additional protection. 

 

 

iNSTALLATION REQUIREMENTS 

 

Prior to installing this thermometer, these instructions should be fully read. Failure to do so could 

result  in  permanent  damage  to  the  unit.  Particular  attention  should  be  given  to  the  following 

points:- 

 

 

The Near Field Communication function of this device must not be used in a hazardous area 

(safe area use only). 

 

This equipment shall not be exposed to strong electromagnetic fields exceeding 1A/m rms or 

3V/m rms when located in  a hazardous area These values are maximum limits and  may be 

limited further in accordance with the Canadian Electrical Code or the National Electrical Code 

or IEC/EN 60079-14, as well as local requirements (as applicable). 

 

The installer and user must take appropriate measures to avoid accumulation of electrostatic 

charge on the non-conductive enclosure surface. Clean only with a damp cloth. 

 

The  equipment  enclosure  must  be  sufficiently  thermally  isolated  from  hot  or  cold  process 

vessels that its local ambient remains within the specified ambient temperature range. 

 

The equipment must not be allowed to become immersed in dust. 

Summary of Contents for DCT150M-W

Page 1: ... sealed polycarbonate face which is waterproof to IP67 and which eliminates surface electrochemical corrosion problems The DCT150M W is suitable for hostile environments without additional protection iNSTALLATION REQUIREMENTS Prior to installing this thermometer these instructions should be fully read Failure to do so could result in permanent damage to the unit Particular attention should be give...

Page 2: ...uct can be made unless they have been expressly approved by Quantum Cryogenics as this could void the user s authority to operate the equipment ATEX Hazardous Area Compatibility Ensure that the gauge is suitable for use in the environment of the hazardous zone This should be done by reference to the ATEX code of the DigiTemp which is also marked on the face of the instrument and stated on the cert...

Page 3: ...e substances please contact Quantum Production Ltd for further advice INSTALLATION Installation should only be undertaken by qualified personnel familiar with safety practices and standards relating to intrinsically safe electrical equipment OPERATING INSTRUCTIONS The DCT150M W samples the temperature measured at the sensor once every minute In practice due to the slow change in the temperature of...

Page 4: ... and user must take measures to avoid accumulation of static charge on the non conductive enclosure surface Please refer to instructions in cleaning section below No changes or modifications to the product can be made unless they have been expressly approved by Quantum Cryogenics as this could void the user s authority to operate the equipment MOUNTING THE SENSOR In order to monitor the authentic ...

Page 5: ... welded to the tank without using undue force and then be held firmly in position by the use of a setting high thermal conductivity silicone sealant Welds Tank Surface Saddle Clips Sensor Housing Flexible Lead Fig 1 ii Alternatively the sensor housing may be fixed to the outside surface of the tank by inserting it into a stainless steel tube of suitable diameter which has been pre welded to the ta...

Page 6: ...e dimensions of the DCT150M Digital Tank Thermometer are shown in Fig 3 below The case is designed to be flush fitted in to a circular hole of diameter 4 inches 122 mm in the outer skin of the tank and to be fixed in position by means of rivets or screws Six fixing holes Ø5 mm are provided around the fixing flange of the unit on a PCD of 135mm The thermometer flange should be sealed to the outer s...

Page 7: ...e material and when installing great care must be taken not to damage it When fitting the sensor pay particular attention to the following points 1 Do not pull tug or stretch the sensor cable and ensure that the lead is not resting or snagged against a sharp edge or trapped between two surfaces 2 If the lead is too long it can be coiled and held together by a high temperature tie wrap making sure ...

Page 8: ...y cloth Strong solvents should not be used to clean the flange and front face MAINTENANCE The DCT150M W does not require any user maintenance other than cleaning as indicated above The face of the unit is permanently sealed to the enclosure and should not be removed Refurbishment and replacement batteries can be undertaken by returning the unit to Quantum Production Ltd WARRANTY The DCT150M W is g...

Page 9: ...ay 4 Digits 7 segment LCD optional Fahrenheit F configuration Resolution 1 C Dimensions ø150 40 mm rear cut out ø100 mm Fittings 6 fixing holes ø5 mm equi spaced on a 135 mm PCD Enclosure Glass fibre reinforced nylon with fully integrated sealed polycarbonate front face Sensor enclosed in ø6 mm x 50 mm sheath stainless steel Ingress Protection IP67 Serial Number Displayed on front face with year m...

Page 10: ...IEC 60079 0 2017 EN60079 11 2011 Ex ib IIC T4 T3 Gb Ex ib IIIC T135 C T184 C Db HAZLOC E115327 IEC EN UL CSA C22 2 no 60079 0 IEC EN UL CSA C22 2 no 60079 11 CSA C22 2 no 213 UL 121201 UL CSA C22 2 no 61010 1 Class I II III Div 2 Gps A D FG Nonincendive Non incendiaire Class I Zone 1 AEx ib IIC T4 T3 Gb Zone 21 AEx ib IIIC T135 C T184 C Db Ex ib IIC T4 T3 Gb Ex ib IIIC T135 C T184 C Db EMC ETSI 30...

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