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ELF (B) 

 

 

C

ONTROLLER 

O

PERATION

 

The controller normally fitted to this furnace is the Carbolite 201 made by Eurotherm. 

If any other controller is fitted, then a separate manual is supplied. 

If a time switch is fitted, then a separate manual is supplied.

 

4.1  201 – Basic Features 

Note: on the 201 display the letters 

m

 and 

w

 look like 

n

 and 

u

. In these 

instructions the letters are described 
as m and w. 

 

 

When switched on, the controller lights up, goes through a short test routine, and then displays the 
measured temperature and starts to control. The output light glows or flashes as heating occurs.  

 The 

Page

 key 

 allows access to parameter lists within the controller; most lists and parameters 

are hidden and cannot be accessed by the operator because they contain factory-set parameters 
that should not be changed.  

 

A single press of the page key 

 displays the temperature units, normally set to °C; further presses 

reveal the lists indicated in the Navigation Diagram in section 4.6. 

 The 

Scroll

 key 

4

 allows access to the parameters within a list. Some parameters are display-only; 

others may be altered by the operator. Some parameters only appear in appropriate circumstances 
– for example, working setpoint does not appear if setpoint ramp rate is Off.  

 

A single press of the scroll key 

4

 displays the temperature units; further presses reveal the 

parameters in the current list indicated in the Navigation Diagram.  

 

To return to the Home list at any time, press Page 

 and Scroll 

4

 together, or wait for 45 seconds. 

 The 

Down

 

T

 and 

Up

 

S

 keys are used to alter the setpoint or other parameter values. 

 

4.2  Basic Operation 

Normally no operator action is required other than entering the setpoint, as the 201 starts to 
control on being switched on, as described above. 

4.3  Altering the Setpoint  

 

With the display at “home”, showing the measured temperature, press Down 

T

 or Up 

S

 once to 

display the setpoint; press again or hold down to adjust it. The display returns to the measured 
temperature when no key is pressed for 0.5 seconds. 

4.4  Stopping and Starting Control 

It is possible to stop and start the controller without altering the setpoint. Press Scroll 

4

 until the 

legend 

m-A

 (manual/auto) appears. In the 201, manual means “off” and auto means “on”. Press 

Down 

T

 or Up 

S

 once to show the current on/off state: 

mAn

 for off, and 

Auto

 for on. Press 

T

 or 

S

 to change between manual and auto (off and on) as required. 

 

Note that timer modes 1 & 3 set the controller to 

mAn

 at the end of the timing period. If the 

controller unexpectedly does not control it may be in manual mode, possibly as the result of 
previous use of the timer function. 

4.5  Altering the Ramp Rate 

MF01 

Содержание ELF 11/14B

Страница 1: ...ty supply CONTENTS Section page 1 0 Introduction 1 2 0 Installation 2 3 0 Operation 5 4 0 Controller Operation 7 5 0 Overtemperature Control Option 13 6 0 Maintenance 14 7 0 Repairs Replacements 14 8...

Страница 2: ...ns The B versions may be set to operate on any single phase voltage in the range 200 240V or 100 120V to order by correct setting of the power limit parameter in the controller Because of model change...

Страница 3: ...pply 2 3 Chimney The chimney is a short length of ceramic tubing If it is supplied unfitted then fit it through the hole in the top of the furnace case If the furnace is to be used to heat substances...

Страница 4: ...the supply cable directly to an isolator or fit it with a line plug The plug or isolator should be within easy reach of the operator to permit quick disconnection of the power For operator safety the...

Страница 5: ...controller setpoint to a temperature close to the desired maximum Materials such as case hardening compounds and other reactive salts may attack the wire elements causing premature failure The insula...

Страница 6: ...ELF B 4 0 6 MF01...

Страница 7: ...oint ramp rate is Off A single press of the scroll key 4 displays the temperature units further presses reveal the parameters in the current list indicated in the Navigation Diagram To return to the H...

Страница 8: ...ate the possible difference between running without and with a ramp to setpoint value depending on the load and the value used 4 6 Navigation Diagram OP Hi SPrr m A w SP Home List Input List Output Li...

Страница 9: ...he timer starts timing immediately At the end of the timing period control switches off i e goes into Manual to allow cooling and End flashes on the display On during the timing period Off from the en...

Страница 10: ...r changes to run Note that the tmr display shows 0 zero during the last minute of timing and also shows 0 when the time has expired The timer light indicates whether timing is still in progress Method...

Страница 11: ...rs or other system errors User calibration allows compensation for such errors and the 2132 allows for a user 2 point calibration This setting is password protected to avoid accidental alteration Page...

Страница 12: ...once to display the value of OP Hi it is good practice to write down the original value To alter the parameter to the desired value use Down T or Up S Caution Do not increase the power limit value to...

Страница 13: ...ons the letters are described as m and w With the key pressed the overtemperature setpoint is normally displayed To alter the value use Down and Up To view the measured temperature press Scroll until...

Страница 14: ...on Thermal Engineering Services has a team of Service Engineers capable of repair calibration and preventive maintenance of furnace and oven products at our customers premises throughout the world We...

Страница 15: ...nt Wash work clothing separately Before commencing any major repairs we recommend reference to the European Ceramic Fibre Industry Association Bulletin No 11 and the UK Health and Safety Executive Gui...

Страница 16: ...a socket spanner undo the four bolts that fasten the insulation box These are located under the insulation box in the two cross supports Remove the insulation box by carefully sliding it out through...

Страница 17: ...rder DOOR DOOR PLUG CARRIER DOOR PLUG 7 8 Air Inlet Adjustment The air inlet is on the inner door panel door plug carrier and is supplied in the closed position It can be altered to the open position...

Страница 18: ...visable for an electrician to check the internal circuits Replace any failed fuses with the correct type For safety reasons do not fit larger capacity fuses without first consulting Carbolite The fuse...

Страница 19: ...hts glowing on the controller The SUPPLY light is ON The controller may be faulty or not receiving a supply due to a faulty switch or a wiring fault The SUPPLY light is OFF Check the supply fuses and...

Страница 20: ...n t thermocouple EMC filters circuit boards 9 3 Fuses F1 F3 Refer to the circuit diagram F1 Internal supply fuses 32mm x 6mm type F fitted on EMC filter circuit board s F2 Auxiliary circuit fuses 20mm...

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