ESAB PK 410 Dryer cabinet User manual

Brand: ESAB

Model: PK 410 Dryer cabinet

Type: User manual

ESAB PK 410 Dryer cabinet is intended for drying and storing welding electrodes, and for use in accordance with these instructions only. The unit can be used in automatic or manual operation modes, the latter of which requires the user to set drying and storage temperatures. These temperatures can be set between 50 - 400 degrees Celsius, and there are separate temperature settings for the drying and storage modes. The automatic operation mode is determined by a built-in timer, which can be set for timed drying and storage operation separately for seven days a week.

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Use

The unit is intended for drying and storing welding electrodes in the temperature range 50 - 400

The unit is to be used only in accordance with these instructions. Is must not be used for any other

purpose because of possible injuries or material damage.

Before use

Check the unit for transport damage; do not connect a faulty unit to the mains. Check that the

voltage and frequency marked on the rating plate match the values of the mains to which the unit is

to be connected.

Location and connection to mains

To avoid overheating, the clearance to any material must be no less than 0,5 m on any side and no

less than 1 m above the unit. Make sure that there are no obstacles and no flammable material closer

to the unit. The unit must never be covered. Place the unit in a dry place on a flat surface. The

enclosure class of the cabinet is IP 21, thus it cannot be used if susceptible to splashing water. The

unit may not be used in environments where there is danger of explosion (EX). The unit is

connected to mains either semi-permanently by screwing the connection cord to the wall outlet or by

adding an approved plug to the cord. If the connecting cord is too short it has to be replaced. Never

splice the cord or use extension cords.

Using the unit

Do not load the cabinet with packaged electrodes, they must be taken out of their package first. The

protective nets of the resistors must remain in place during operation. If the amount of electrodes is

much below capacity, the electrodes should be distributed evenly over the middle shelf to minimize

temperature gradients. Connect the unit to the mains. The pilot light (1, Fig. 1) lights up. Set the

timer (2) to the correct day of week and time. Turn the function knob (4) to position 0. Turn the

main switch (3) to position 1. Set, in the manner explained below, the drying and storage

temperatures according to the recommendations of the manufacturer of the electrodes. Using the

function knob (4), select either automatic operation (position 2), in which case the drying cycles are

determined by the timer, or manual operation (position 1), in which case the cabinet is in the drying

mode, and the temperature is according to the drying temperature instruction. The indicator light (5)

is on whenever the unit is manually set to drying. The indicator light (5) is on whenever the drying

cycle set in the timer is active. When the drying function is not active, the indicator light (6) is on,

indicating that the unit is in the storage mode.

Setting temperatures

Drying temperature

The drying temperature is regulated using a double-circuit digital temperature controller (7); two

sets of instructions can be set. Instruction 1 is that for the drying temperature, instruction 2 that for

the storage temperature. Set the drying temperature instruction as follows: Press and keep depressed

the SET 1 button, the display will show the current drying temperature instruction. Keeping SET 1

depressed, set the desired temperature using the arrow buttons. When the desired temperature is

shown in the display, release the SET 1 and arrow buttons. This will cause the display to show the

current dryer temperature. The desired drying temperature is now set. Pressing the arrow button

continuously when setting the temperature will first cause the reading of the temperature instruction

to change slowly over approx. 10 degrees, then rapidly.

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Storage temperature

The storage temperature instruction is set in the same manner as that for the drying temperature,

using the button SET 2. Keeping SET 2 depressed, set the desired temperature using the arrow

buttons. When the desired temperature is shown in the display, release the SET 2 and arrow buttons.

This will cause the display to show the current dryer temperature.

Both the drying and storage temperature settings can be checked at any time by pressing the SET 1

or SET 2 button. This will cause either the drying temperature or the storage temperature instruction

to be displayed, depending on which button was pressed.

Automatic operation

The timer may be set for timed drying and storage operation separately for seven days a week. Set

the starting time of the drying cycle by depressing a rider of the timer towards the centre. One rider

equals two hours. Separate drying cycles can be defined for each day. For automatic operation of the

cabinet, turn the function knob (4) to position 2. If no drying cycle is on, the pilot light (6) will light

up to show that the unit is in storage mode. Instruction 2, the storage temperature instruction will be

carried out. The pilot light (10) will go off and the pilot light (5) will light up when the drying

sequence commences. Instruction 1, the drying temperature instruction will be carried out. When the

drying cycle is ended, the cabinet will return to the storage mode.

Manual operation

Turn the function knob (4) to position 1. Pilot light (5) will light to indicate that the dryer is in the

drying mode, regardless of the drying and storage cycles selected by the timer.

Other matters to be considered

Keep the cover of the ventilation opening open, whenever the cabinet is in the drying mode. This

will improve the evacuation of moisture from the cabinet. The cover may be screwed down during

the storage cycle. Turning the function knob (4) and the main switch (3) to position 0 whenever the

cabinet is not in use. Turning the cabinet off by the main switch or disconnecting it from the mains

will not erase the settings. Turning the dryer off from the main switch also will not cause the timer

to stop. The timer will stop only if the unit is disconnected from the mains by dismounting the cord,

when a fuse is blown or in case a power failure occurs. The timer should then be reset when

recommencing operation.

TIMER

MAIN SWITCH

OPERATION

1= MANUAL

2= AUTO

DRYING

STORAGE

PK- 410

Fig. 1. The control cabinet of the dryer. 1. Pilot light, 2. Timer, 3. Main switch. 4. Function knob, 5. Pilot light, 6. Pilot

light, 7. Temperature selector

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Basic settings of the control unit

The parameters of the control unit are preset by the manufacturer. However, the utilisation of certain

functions require that these settings be changed. The settings may also change due to entering errors.

The following is a review of the changing of settings, and the original settings of each parameter. If

the operation of the cabinet does not meet your requirements, the present parameter settings should

be changed into the factory settings, and the operation retested.

SET 1

SET 2

PRG

DOWN

Concealed

button

Fig. 2. Buttons of the temperature selector.

Enter the programming mode by simultaneously pressing the buttons PRG, SET 1 and the

"concealed button" below PRG. The pilot light I starts flashing, and the symbol of the parameter d1

will appear in the display. The value of the selected parameter is shown in the display by pressing

the SET 1 button. The parameter's value is changed by simultaneously pressing the SET 1 button

and either arrow button. The value of each parameter setting can be displayed and changed as shown

above. Exit the programming mode by simultaneously pressing the PRG button and the "concealed

button". The device returns to the normal operation mode, if the buttons are not activated within a

certain time. The parameters and their original settings are listed below.

Parameter Operation Set to value

d1 Connection difference, output 1

the temperature difference between

the setting and the actual value,

when the resistors are turned on.

-1

d2 Connection difference, output 2 -1

LS1 Lower limit of set point, output 1 0

LS2 Lower limit of set point, output 2 0

HS1 Upper limit of set point, output 1 450

HS2 Upper limit of set point, output 2 450

od Reaction delay (0 - 500 s) 0

CAL Calibration 0

PSE Type of sensor

Fe = TcJ; Cr = TcK; rh = TcS

OCO Interdependence between set points

di = SET 2 dependent on SET 1

in = SET 2 independent of SET 1

HC1 heating/cooling, output 1

H = heating

C = cooling

HC2 heating/cooling, output 2

H = heating

C = cooling

rP1 state of the relay when the sensor is

damaged, output 1

ro = the relay is open

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rc = the relay is closed

rP2 state of the relay when the sensor is

damaged, output 2

ro = the relay is open

rc = the relay is closed

LF1 Switch of function for the pilot light

showing the status of output 1

di = the pilot light is on when the

relay is closed

in = the pilot light is on when the

relay is open

LF2 Switch of function for the pilot light

showing the status of output 2

di = the pilot light is on when the

relay is closed

in = the pilot light is on when the

relay is open

dro change of display

P = the display shows the actual

temperature

S = the display shows the drying

temperature set

hdd half digit display

n = display with 1

C increments

y = display with 5

C increments

tab Shows the number of parameters,

cannot be programmed

Locking and limiting temperatures

An upper (HS1) and lower limit (LS1) may be set for the drying temperature. If you want to limit

the drying temperature to the range 250 - 350

C, set parameter HS1 to 350 and parameter LS1 to

250. The temperature can thus be locked to a fixed value. By assigning parameter LS1 the value

350 and parameter HS1 the value 351, the drying temperature is locked at 350

The storage temperature range can be limited in the same manner using the parameters HS2 and

LS2, changing their values as explained above.

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Specification

Voltage 230V 50 Hz

Power 3500 W

Drying temperature 50 - 400

Storage temperature 50 - 400

Capacity approx. 42 packages of electrodes

Dimensions W*D*H 860*820*1260 mm

Weight approx. 230 kg

Equipment temperature selector, timer, main switch, function knob,

pilot lights

ESAB AB Made by: Ergi Oy

SE – 695 81 Laxå Finland

Phone: +46 584 81000 phone: +358-9-753 8005

Fax: +46 584 13056 fax: +358-9-753 8460

ESAB PK 410 Dryer cabinet User manual

ESAB PK 410 Dryer cabinet User manual

ESAB PK 410 Dryer cabinet User manual

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