Dwyer Instruments Love 40T Series Istruzioni per l'installazione e il funzionamento

Series 40T/40M Digital Temperature Switch

Specications - Installation and Operating Instructions

Bulletin T-40T

The Series 40T/40M Digital Temperature Switch accepts a variety of inputs to allow

temperature measurements and set points up to 1999°F (1300°C). Observing the

current status of the control is made easier with the 3-1/2 digit, multi-color LED display

that has alarm, defrost and output symbols. For added versatility, the temperature

units can be eld selected for °F or °C. For cooling applications, manual defrost mode

can be initiated by pushing a single button. A ashing alarm informs users when the

current temperature exceeds preset limits.

INSTALLATION

Note: Unit must be mounted away from vibration, impacts, water and corrosive gases.

• Cut hole in panel 71 x 29 mm (2.80 x 1.14 in)

• Apply silicone around the perimeter of the hole to prevent leakage

• Insert unit into hole from the front side of the panel

• Slide the mounting bracket securely against the panel from the rear of the unit

• Wiring diagram is displayed on top of the control

ADJUSTING PARAMETER VALUES

In order to change the parameter values, follow the procedure below:

• Press UP ARROW and DOWN ARROW simultaneously for four seconds until PA is

displayed

• Press SET

• Use UP ARROW or DOWN ARROW to adjust value to -19

• Press SET

• Press UP ARROW and DOWN ARROW simultaneously for four seconds until SP is

displayed

• Use UP ARROW or DOWN ARROW to cycle through parameters

• Press SET to view value of parameter

• Use UP ARROW or DOWN ARROW to adjust value of parameter

• Press SET to store value

• Press UP ARROW and DOWN ARROW simultaneously for four seconds to exit

SPECIFICATIONS

Range: Current: -1999 to 1999; Voltage: -1999 to 1999; K T/C: -140 to

1999°F (-100 to 1300°C); J T/C: -140 to 1450°F (-100 to 800°C); RTD: -320 to

1200°F (-200 to 650°C); PTC: -58 to 300°F (-50 to 150°C); NTC: -40 to 230°F (-40

to 110°C); N. RTD: -110 to 570°F (-80 to 300°C).

Input: RTD thermocouple, thermistor current and voltage (depending on model).

Output: 16A @ 250 VAC SPDT relay (max current allowed is 10A).

Control Type: On/off.

Power Requirements: 12-24 VAC/VDC, 115 VAC or 230 VAC (depending on

model).

Accuracy: ±1% FS.

Display: 3-1/2 digit red display.

Resolution: 0.1°C.

Memory Backup: Non-volatile memory.

Temperature Limits: 32 to 131°F (0 to 55°C).

Weight: 2.3 oz (65 g).

Front Panel Rating: IP 65.

Agency Approvals: UL, CE.

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219-879-8000

Fax: 219-872-9057

www.dwyer-inst.com

e-mail: [email protected]

2-31/64 [63.22]

1-3/32

[27.94]

3 [76.20]

1-1

1/32

[33.99]

2-3/8 [60.33]

WIRING

Avoid installing the temperature probe cables in close proximity of any power cables.

If the length of the probe cables is longer than 100 meters, a recalibration adjustment

may be made using the CA1 parameter.

ELECTRIC

SYSTEM

POWER SUPPLY

PTC/NTC

PROBES

1110

11 10

IN COM COM

IN CP COM

COM

12 V

ROOM

J/K

THERMOCOUPLES

2/3 WIRES PT 100,

PT 1000 AND

NI 120 PROBES

0-20/4-20 mA AND

0-10/2-10 V

ACTIVE TRANSDUCERS

2/3 WIRES 4-20 mA

PASSIVE

TRANSDUCERS

11 10 9

MAX. 10 A

K 1

LOAD

PARAMETER LIST

Parameter Description Units Range Factory Setting

CA1

Set point

Ambient probe adjustment

Type of input probe

Decimal point position

Display units

Minimum process input value

Maximum process input value

Value displayed during normal operation

Set point differential

Minimum set point value

Maximum set point value

Set point locked

Cooling or heating

Minimum time between compressor starts

Minimum compressor stoppage time

Minimum on time of compressor

Off time of fault cycle

On time of fault cycle

Interval between defrost

Duration of defrost cycle

Defrost on power up

Defrost delay upon power up

Display during defrost cycle

Alarm set point 1

Alarm delay for A1

Alarm 1 type

Alarm delay upon set point modication

Alarm set point 2

Alarm delay for A2

Alarm 2 type

Reserved for future use

Degrees

Option

Counts

Option

Degrees

Option

Minutes

Seconds

Minutes

Hours

Minutes

Option

Minutes

Option

Degrees

Minutes

Option

Minutes

Degrees

Minutes

Option

None

r1 to r2

-25 to 25

0 to 13

0 or 1

-999 to 1999

0 or 1

0.1 to 99.0

-199.0 to r2

r1 to 1999

0 or 1

0 to 240

0 to 99

0 or 1

0 to 99

0 or 1

-199 to 1999

0 to 240

0 to 4

0 to 240

-199 to 1999

0 to 240

0 to 4

None

0.0

-20

2.0

0.0

350.0

0.0

None

PARAMETER DESCRIPTION

SP Sets ambient temperature set point between r1 and r2

CA1 Ambient probe calibration adjustment

P0 Type of input probe

P1 Position of decimal place

P2 Display engineering units

0 = °C

1 = °F

2 = No units

P3 Minimum value for process input

P4 Maximum value for process input

P5 Value shown during normal operation

0 = Probe temperature

1 = Set point

r0 Set point differential or hysteresis

r1 Minimum value for set point

r2 Maximum value for set point

r3 Set point lock out

0 = Unlocked

1 = Locked

r5 Selection of heating/cooling operation

0 = Cooling

1 = Heating

C1 Minimum time between compressor starts

C2 Minimum time compressor must remain off before being restarted

C3 Minimum time compressor must remain on after being started

C4 During probe error, time compressor is off

C5 During probe error, time compressor is on

d0 Interval of time between defrost cycles (if 0, defrost will never be activated)

d3 Duration of defrost cycle

d4 Start defrost cycle upon power up

0 = No

1 = Yes

d5 Defrost delay time upon power up (d4 must be 1)

d6 Temperature shown during defrost

0 = Display probe temperature

1 = Display probe temperature up to (set point + r0) if probe temperature

is below (set point + r0) at activation of defrost cycle. Display probe

temperature if the probe temperature is above (set point + r0) at activation

of defrost cycle.

A1 Alarm 1 temperature set point

A2 Alarm 1 not activated unless temperature remains in alarm state for this

time

A3 Alarm 1 type

0 = Alarm disabled

1 = Absolute low alarm (A1)

2 = Absolute high alarm (A1)

3 = Deviation low alarm (SP - A1)

4 = Deviation high alarm (SP + A1)

A4 Temperature alarms not activated for this time after modications to set

point

A5 Alarm 2 temperature set point

A6 Alarm 2 not activated unless temperature remains in alarm state for this

time

A7 Alarm 2 type

0 = Alarm disabled

1 = Absolute low alarm (A1)

2 = Absolute high alarm (A1)

3 = Deviation low alarm (SP - A1)

4 = Deviation high alarm (SP + A1)

E9 Reserved

40T 40M

0 = J type thermocouple

1 = K type thermocouple

2 = 3 wire Pt100 RTD

3 = 2 wire Pt100 RTD

40M

0 = PTC

1 = NTC

2 = J type thermocouple

3 = K type thermocouplee

4 = 3 wires Pt 100

5 = 2 wires Pt 100

6 = 3 wires Pt 1000

7 = 2 wires Pt 1000

8 = 4-20 mA

9 = 0-20 mA

10 = 2-10 V

11 = 0-10 V

12 = 3 wires Ni 120

13 = 2 wires Ni 120

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219-879-8000

Fax: 219-872-9057

www.dwyer-inst.com

e-mail: [email protected]

DISPLAYING ROOM TEMPERATURE

If the P5 parameter is set to display the temperature set point, the probe temperature

can be displayed by pressing the DOWN ARROW key for two seconds until Pb1 is

displayed. Next, hit the SET key. To return to the normal display, press SET key.

MANUAL DEFROST ACTIVATION/DEACTIVATION

To manually activate the defrost cycle, press the UP ARROW key for four seconds.

This feature is disabled during heating operation.

PARAMETER LOCK OUT ACTIVATION/DEACTIVATION

The key pad lock out can be activated/deactivated by pressing the SET and

DOWN ARROW keys simultaneously for two seconds. The display will ash Loc or

UnL to signify the change in states.

ALARM BUZZER RESET

The audible alarm can be silenced by pressing any key.

RESTORING FACTORY DEFAULT SETTINGS

Factory settings can be restored by following the below procedure:

• Pressing the UP ARROW and DOWN ARROW keys for four seconds until PA is

displayed

• Press the SET key

• Press the UP ARROW or DOWN ARROW to adjust the value to 743

• Press SET key

• Pressing the UP ARROW and DOWN ARROW keys for four seconds until dEF is

displayed

• Press SET key

• Press the UP ARROW or DOWN ARROW to adjust the value to 149

• Press SET key

• Cycle the power after the ashing dEF goes away

MAINTENANCE, CLEANING AND REPAIR

After nal installation of the unit no routine maintenance is required. Clean the surface

of the display controller with a soft and damp cloth. Never use abrasive detergents,

petrol, alcohol or solvents. A periodic check of the system calibration is recommended.

The Series 40T/40M is not eld serviceable and should be returned if repair is needed

(eld repair should not be attempted and may void warranty). Be sure to include a

brief description of the problem plus any relevant application notes. Contact customer

service to receive a return goods authorization number before shipping.

DISPLAY MESSAGES

Out 1

solidly lit

Output 1 is active

Out 1

ashing

Either modication of set point or call for load during load protection

(C1 or C2)

Defrost cycle is active

Alarm condition is present

°C Temperature is measured in °C

°F Temperature is measured in °F

Loc Key pad is locked

Pr1 Probe 1 error

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