ESTechnical T962 Kurzanleitung

ESTechnical Reﬂow Oven Controller Upgrade T962

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Table of Contents

Instructions for ﬁtting ESTechnical Reﬂow Oven Controller to T962 1 ..........................................

Installation procedure 1 ............................................................................................................

Reﬂow Controller Installation Troubleshooting 18 .....................................................................

ESTechnical Reﬂow Oven Controller Operating Instructions 19 ....................................................

Initial Set Up 19 .........................................................................................................................

Overview of Operation 20 .........................................................................................................

Initial Set Up for new PCB designs 20 .......................................................................................

Production of PCBs 20 ...............................................................................................................

Menu Layout & navigation 20 ...................................................................................................

Reﬂow Proﬁle Testing 21 ...........................................................................................................

Data Logging – ReﬂowViewer Software 24 ................................................................................

Operating Instructions 24 .........................................................................................................

Starting a reﬂow cycle 24 .........................................................................................................

Stopping a cycle 24 ...................................................................................................................

Saving an edited proﬁle 24 .......................................................................................................

Loading a saved reﬂow proﬁle 25 .............................................................................................

Editing the active proﬁle 25 ......................................................................................................

Fan Idle Speed Adjustment Procedure 25 .................................................................................

Proﬁle tuning tips 26 .................................................................................................................

Care and Maintenance 27 .........................................................................................................

Before every use 27 ..................................................................................................................

After every 50-100 reﬂow cycles 27 .........................................................................................

Packing list 28 ..............................................................................................................................

What you will need (not supplied): 28 ..........................................................................................

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ESTechnical Reﬂow Oven Controller Upgrade T962

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ESTechnical Reﬂow Oven Controller Upgrade T962

Reﬂow Controller hardware

Instructions for ﬁtting ESTechnical Reﬂow Oven Controller to T962

www.estechnical.co.uk

[email protected]

Thank you for your purchase of ESTechnical products. If you have any questions or comments please

let us know, we are always keen to hear feedback about our products.

Optional parts

NB: The USB connection and external thermocouple

connector referred to in the operating instructions are

optional and not included with this kit.

Please see Reﬂow Oven Accessories Package for more information.

The items included in this package are also available separately, see

Components and Consumables .

Packing List

What you will need (not supplied)

Installation procedure

Warning

IMPORTANT – mains electrical wiring is involved in the

installation of this controller, but no mains voltages are

connected directly to the controller. If you are in any doubt

please consult a qualiﬁed electrician.

Auto Reset Jumper

The ESTechnical reﬂow controller v4 PCB and onwards has a jumper

for enabling or disabling the auto-reset behaviour of the MCU. With

the jumper connecting the two pins it is possible to easily upload new

ﬁrmware to the controller via USB to serial connection from a

ESTechnical Reﬂow Oven Controller Upgrade T962

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computer. With the jumper open, the MCU will not automatically

reset when the serial port is opened by a computer - this is more

convenient in normal operation and we suggest that you operate the

controller with the jumper open.

Unplug the power cable from the reﬂow oven.<1.

Turn the oven upside-down.2.

Remove the drawer from the unit (pull forwards until it stops, then remove the four screws from3.

the underside of the drawer runners and set aside, also set the drawer aside.<

Remove the screws that are under the front edge of the lid, there are two screws in the drawer4.

opening, keep these safe.

Remove the screws in the drawer opening

Turn the unit around so you are looking at the back, remove the screws that hold the lid on the5.

case, keep these safe.

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Remove the marked screws

Being very careful not to pull on any cables, carefully lift the back of the lid a little, then gently6.

slide the lid forwards a little, lift oﬀ the oven, turn over and place it next to the bottom half of

the oven.<

Gently pick oﬀ the hot glue that's covering the connectors on the control board. A small pair of7.

pointed pliers is helpful here, only try to remove a small amount at a time.

Remove all the glue from screws and connectors (note that the oven shown in the photo is the

larger T962A)

Disconnect all the cables that attach to the control board. Do not pull on cables, pull the8.

connectors apart gently and without twisting.

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All connections unplugged (note that the oven shown in the photo is the larger T962A)

Completely remove the control board and display and set aside – these items are no longer9.

needed.

Original controller and display removed (note that the oven shown in the photo is the larger

T962A)

At this point, take a moment to familiarise yourself with the wiring that is present. You need to10.

be able to identify the following cables in order to proceed with the installation:

Low voltage AC power cable from the small transformer, has a plug that ﬁts onto two

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pins.<

Small signal cable to the heater solid state relay, ﬁtted with two pin JST connector.<

Mains cable that was used to supply the power for the oven cooling fan to the controller,

this has a three pin connector with only two terminals populated.<

One cable that goes into the back of the oven, this is the oven cooling fan cable and has a

two pin connector ﬁtted.<

2x thermocouples with coloured crimp ferrules to indicate polarity.<

Keypad ribbon cable.<

One cable that goes to the two panel LEDs, this has a 4 pole JST connector.<

One cable that goes to the small DC cooling fan, with a 2 pole JST connector.<

Carefully un-crimp the tubes that hold the thermocouples using a pair of pliers. Gently pull out11.

the thermocouple.<

Inspect the thermocouples and if necessary untwist the wires so that the wires only touch when12.

meeting the bead, the wires should not be twisted together leading to the tip. A small pair of

pliers is needed – be careful the thermocouple is fragile. This reduces the mass of the

thermocouple junction and improves the response time to temperature changes.

Thermocouple tip prepared for reﬁtting

In order to ﬁt the ESTechnical Reﬂow Oven Controller to the case, one of the four fan mounting13.

bolts may need to be removed (two or more designs of T962 lid exist) as it may foul on the

edge of the LCD display.

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Diagram 1 – Connector locations

Grind/ﬁle/sandpaper away the powder coated covering until you reach bare metal around one14.

screw hole on the rear of the lid. This provides an earth connection to the back panel.

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Prepare a bare metal area around a screw hole for good earth continuity in the case

The matching area on the rear panel of the oven also needs to be prepared in the same way so15.

good metal on metal contact will be achieved when the oven is reassembled.<

Screw the supplied stand-oﬀ posts into the four screw posts at the corners of the display16.

window.<

Identify the oven thermocouple. The thermocouple that will be mounted in the oven drawer17.

needs to be connected to the A input (thermocouple connector closest to the ESTechnical

Reﬂow Controller's power connector) – this is important for the correct function of the

ESTechnical Reﬂow Controller. Make sure you observe the polarity of the thermocouple, it has

one lead marked red (this is positive, marked + on the board) and the other is blue (-).<

Screw down the ESTechnical Reﬂow Controller using the supplied M3 x6mm bolts – do not over18.

tighten.<

Plug in the thin ribbon cable for the keypad, the connector is labeled 'Keypad'.19.

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Keypad connection

Identify the cable that connects to the panel LEDs, plug this onto the pins labeled 'LEDs' on the20.

ESTechnical Reﬂow Oven Controller.

LEDs connection

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