Process Technology DLC16, T-DLC16 User Manual

DLC16 / T-DLC16

Dimensions

Specifications

Probe Range:

-58°F to 302°F (-50°C to 150°C)

Input:

1.5-inch (4 cm) thermistor (1000Ω @
25°C) with 10-foot (3-meter) cable

Accuracy:

±1°

Resolution:

±1 digit

Output:

16 amp SPDT relay @ 250 VAC

Horsepower Rating:

3/4 HP

Supply Voltage:

120VAC or 240VAC

Supply Power:

4 VA (230V)

Ambient Temp:

14°F to 158°F (-10°C to 70°C)

Storage Temperature:

-4°F to 176°F (-20°C to 80°C)

Front Panel Protection:

IP64

Display:

RED, 3-Digit LED

The DLC Digital Temperature Switch is a compact, easy to
program temperature controller.

 3-digit LED screen displays probe temperature
 error or alarm messaging
 available in 120VAC or 240VAC
 non-volatile memory storage
 includes a thermistor with 10ft cable and fitting clips for

panel mounting

Installation

Figure 2: DLC Wiring

Wiring Diagram

up

defout

down

set

T - DLC16 – 1 - C

Figure 1: Model Number Description

Thermostat
Only

Series DLC

Amperes
(16 Amps)

Voltage
1 = 120VAC
2 = 240VAC

Celcius Display
(Optional)

Digital Temperature Switch

Note: Mount DLC away from vibration, impacts, water and

1. Locate appropriate installation site.

2. Cut hole in panel 2.80 x 1.14 inches (71 x 29 mm).

3. Apply silicone (or rubber gasket) around the perimeter of

4. Insert the T-DLC into hole in the panel.

5. Slide removable fitting clips onto the T-DLC from the

6. Remove the back cover to wire the T-DLC (see Figure 2,

7. Replace cover once wiring is completed.

Note: Probe cable length must not exceed 328 ft (100 m).

corrosive gases.

the hole to prevent leakage.

back to secure to panel.

T-DLC wiring).

Do not install probe cable near power cables.

M-33-02 T-DLC16 Manual
Revision – Date: 03 – 03/30/2016 1

Parameter Programming

Parameters

Parameter Descriptions

LED Indications

Display Messages

Maintenance

Description Units Range

SP

Set Point Degrees r1 to r2

r0

Differential or Hysteresis Degrees 1 to 20

r1

Lower Value Set Point Degrees -50 to 150°

r2

Higher Value Set Point Degrees -50 to 302°

d0

Heating or Cooling Control Option Ht/Co

d2

Time for Defrosting Minutes 0 to 59 min.

d8

Interval Time between
defrosting

Hours 1 to 24 hr.

c0

Min. Stop Time for Load Minutes 0 to 59 min.

c1

Continuous Cycle Time Hours 0 to 24 hr.

c2

ON time of fault cycle Minutes 0 to 999 min.

c3

OFF time of fault cycle Minutes 0 to 999 min.

P1

Ambient Probe Adjustment Degrees -10 to 10

H5

Parameter Access Code Numeric 0 to 99

t0

Max. Temp. on Display Degrees -50 to 302°

Access set point (SP) without code protection

 Press SET. SP text will appear on the display.
 Press SET again. The real value is shown on the display.

 The value can be modified with the UP and DOWN arrows.
 Press SET to enter any new values.
 Press SET and DOWN at the same time to quit programming

or wait one minute and the display will automatically exit
programming mode.

Access to all code protected parameters

 Press SET for 8 seconds. The access code value 0 is shown

on the display. (Unit comes with code set at 0 from factory*).

 With the UP and DOWN arrows, code can be set to user

needs.

 Press SET to enter the code. If it is correct, the first parameter

label is shown on the display (SP).

 Move to the desired parameter with the UP and DOWN keys.

SP = Set Point - Desired Regulation Temperature.
r0 = Differential or Hysteresis.
r1 = Lower Set Point Limit.
r2 = Higher Set Point Limit.
d0 = Heating or Cooling Control - This control only does

regulation cycles. Neither defrosting nor continuous
cycles exist.

Heating: To choose Heating Control - Set d0=Ht
(The load is connected when TS<SP-r0.
The load is disconnected when TS>=SP.)

Cooling: To choose Cooling Control - Set d0=Co
(The load is connected when TS>=SP+r0.
The load is disconnected when TS<=SP.)

(TS = Temperature of ambient probe)

d2 = Duration of Defrosting Time (The value programmed from

the factory is d2=15 minutes. [Ht-defrosting will never
start, if Co=0, defrosting will never start.])

d8 = Interval time between defrosting.
c0 = Minimum time between start and stop.
c1 = Continuous cycle time.
c2 = ON time of fault cycle, when ambient probe broken
c3 = OFF time of fault cycle, when ambient probe broken
P1 = Ambient Probe Calibration. (Offset degrees to adjust

ambient probe. If the probe is not placed in the exact
point that is to be measured, use a standard thermometer
and adjust the difference in this parameter).

H5 = Access to probe parameters. (This code is set to 0 from

the factory).

t0 = Maximum temperature on display. (Temperature limit for

defrosting).

7010 Lindsay Dr. • Mentor, OH 44060 U.S.A. • US/CN: 800-621-1998 • 440-974-1300 • Fax: [phone]

• E-mail: [e-mail]

 Press SET to view the value on the display.
 The value can be modified with the UP and DOWN arrows.
 Press SET to enter the value and exit to test parameter.
 Press SET and DOWN at the same time to quit programming

or wait one minute and the display will automatically exit
programming mode.

* The access code can be reset to 0 by turning off the

controller and turning it on again while keeping the SET key
pressed.

OUT This indicates the load is connected. The system waits for

the programmed minimum stop time of the load.

Def This indicates defrosting is activated.

In normal operation, the probe temperature will be shown on the
display. In case of alarm or error, the following messages will be
shown:

 ER = Memory Error
 --/--- = Short-Circuit Probe Error
 oo/ooo = Open Probe Error

After final installation of the DLC Series Digital Temperature
Switch, no routine maintenance or calibration is required. A
periodic check of temperature accuracy is recommended. If the
control is not reading accurately but the error is linear, use the
ambient probe adjustment parameter (P1) to compensate for the
difference.

M-33-02 DLC16 / T-DLC16 Manual
Revision – Date: 03 – 03/30/2016 2