12V TLK38-S Temperature Controller

TLK38-S Photo

TLK38-S (FERR)
12V Digital Temperature Controller

Digital, dual set-point, microprocessor-based temperature controller with ON/OFF, Neutral Zone ON/OFF and PID control (with an AUTO-TUNING function) and two relay outputs.

The TLK38-S is a simplified, and easier to use, version of the discontinued original TLK38. The new “S” version is identical in size and functionally is similar however, the list of parameters has been reduced. This makes the “S” model far easier to program (there’s only one list of parameters to scroll through).

TLK38-S User Manual (.pdf download)

 
 

(12V) TLK38-S FERR

$199.95 + 4.95 S&H (US only)

Buy 12V TLK38-S
 
 

603.888.2467
toll-free: 1 866.665.5434

International and volume buyers: Please send us a note or e-mail: sales@electracool.com with the quantity desired, destination address and service requested for a quotation including shipping.

TLK38 FERR Temperature Controller

TLK38-S FERR is a 12 volt digital microprocessor-based temperature controller with ON/OFF, Neutral Zone ON/OFF and PID control with an AUTO-TUNING function and two 8 amp relay outputs.

Process values are presented on 4 red LED displays, while the output status is indicated by 2 LED ‘dots’ at the bottom of the display. The instrument is also equipped with 3 LED programmable shift indexes and an LED indication AUTO-TUNING is taking place. Depending on the model, the TLK38-S can have either 1 or 2 outputs: relay type, or that can drive a solid state relays (SSR).

With two set points available, the TLK38-S may be programmed for both (cooling) and reverse action (heating). Great for enclosures that require both cooling in warm weather and warming in winter.

Includes NTC Sensor.

Other Available Inputs:
24 VAC/VDC ("L" type) TLK38-S LERR
100...240 VAC ("H" type). Contact us for availability.

Specifications for TLK38-S FERR

Power Supply: 12 VAC/VDC ± 10% F: 50/60 Hz

PROGRAMMABLE CONTROL FUNCTIONS:

  • ON/OFF with neutral zone
  • PID single action or double action (Heat/Cool) with algorithm allowing up to two degrees of control flexibility
  • AUTO-TUNING FAST function
  • FUZZY OVERSHOOT CONTROL automatic calculation
  • Soft start
  • Ramp rate adjustment
  • Password Protection

Power Consumption: 4 VA

Input(s): We include an NTC 103AT-2 (10 kΩ at 25°C) thermistor. Also works with PTC KTY 81-121 (990 kΩ at 25°C) thermistor, J K & S thermocouples, TECNOLOGIC IRS Infrared sensors, mV signals (0..50/60 mV, 12..60 mV)

Output(s): Out 1: Relay SPDT (8 A-AC1) Out 2: Relay SPST-NO (8 A-AC1)

Case: Self-extinguishing plastic, UL 94 VO

Dimensions: 1/16th DIN, Front Panel 35x75 mm, Depth 64 mm

Mounting: Flush in panel in 29x71 mm hole

Connections: 2.5 mm² screw terminal block

Degree of protection of front panel: IP 65 when mounted on the panel with seal

Measurement Range: NTC sensor supplied: -50~110 °C (-58~230 °F)
See TLK38-S User Manual (.pdf) for other sensor ranges.

Display Scale -99~999 max.
Display resolution: According to the probe used. 1/0. 1/5/0.5

Overall Accuracy: ± 0.5% fs

Sampling rate: 130 ms.

COMMUNICATION ON TTL PORT TO:

  • Universal programming key (optional)
  • Remote display (optional)
  UL & CE for TLK38-S

File no. C-UL (file n. E206847)

Compliance: European RoHS Directive 2011/65/EU, ECC directive EMC 2004/108/CE (EN 61326), ECC directive LV 2006/95/CE (EN 61010-1)

 

Mechanical Dimensions, Panel Cut-out, Mounting & Terminal Diagrams

Mechanical Dimensions, Panel Cut-out & Mounting   TLK38-S Electrical Terminal Diagram  

TLK38-S Controller and any ElectraCOOL™ Assembly Wiring

COOLING Mode

TLK38-S Wiring for Cooling

In order to change the set-point push the “P” button for a moment and SP1 will be displayed. Press the “P” button again and the current set-point value will be displayed. Use the UP or DOWN arrow keys to make a change to the set-point. Leave the controller alone for about 20 seconds and the new value will be programmed.

 

WARMING Mode

For warming, first modify the wiring, as illustrated below (to reverse polarity to the TEC/s) then program the controller for heating.

TLK38-S Wiring for Warming

WIRING:

To use a cold-plate for warming/heating, the polarity of the power to the TECs must be reveresed from that of the cooling mode. Connect the black lead/s from the TE/s (heavier gauge than fan leads) to TLK38-S slot 5, marked "NO" for Normally Open. Then connect the red lead/s from the TE/s to a NEGATIVE (V-) post on the power supply (to change the polarity). Make all other connections to the TLK38-S and power supply, as described and illustrated (red to + and black to -).

PROGRAMMING:

Push the TLK38-S “P” button for a 5 seconds until the LEDs flash. Push the down arrow until the Function mode parameter for output one “Fun1” is displayed. Push the P button and the current status will be displayed. If “CooL” is displayed, push the down arrow and “HEAt” will be displayed. Leave the controller alone for about 20 seconds and the new value will be programmed.

Finally, change the set-point to the desired temperature (above ambient).

In order to change the set-point push the “P” button for a moment and SP1 will be displayed. Press the “P” button again and the current set-point value will be displayed. Use the UP or DOWN arrow keys to make a change to the set-point. Leave the controller alone for about 20 seconds and the new value will be programmed.