TLK38 Photo

TLK38 - Dual Set-Point Digital Temperature Controller with NTC Sensor

The STANDARD TLK38 Series of controllers has been discontinued however, a new simplified version is available named TLK38-S. This model is ideal for most of our thermoelectric applications.

TLK38 LERR Temperature Controller

TLK38 is a “single loop” digital microprocessor-based controller, with ON/OFF, Neutral Zone ON/OFF, PID single action, PID dual action (direct and reverse) control and with AUTO-TUNING FAST function, SELF-TUNING function and automatic calculation of the FUZZY OVERSHOOT CONTROL parameter for PID control. The process value is visualized on 4 red displays, while the output status is indicated by 2 LED displays. The instrument is equipped with a 3 LED programmable shift indexes. The instrument provides for the storage of 4 Set-Points and has two (2) relay type outputs.

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

Includes NTC Sensor.

Other available Inputs: 12 VAC/VDC (F type) and 100...240 VAC (H type). Contact us for availability.

Features

With two set points, TLK38 may be programmed for both (cooling) and/OR reverse action (heating).

  • ON/OFF with neutral zone
  • PID single action or double action (Heat/Cool) with two degrees of freedom algorithm
  • AUTO-TUNING FAST function
  • SELF-TUNING function
  • FUZZY OVERSHOOT CONTROL automatic calculation
  • Soft start
  • Bumpless ramp for set point change
  • Up to 3 configurable alarms + loop break alarm

Specifications for TLK38-LERR (24V)

Power Supply: 24 VAC/VDC ± 10% F: 50/60 Hz

PROGRAMMABLE CONTROL FUNCTIONS:

  • ON/OFF with neutral zone
  • PID single action or double action (Heat/Cool) with two degrees of freedom algorithm
  • AUTO-TUNING FAST function
  • SELF-TUNING function
  • FUZZY OVERSHOOT CONTROL automatic calculation
  • Soft start
  • Bumpless ramp for set point change
  • Up to 3 configurable alarms + loop break alarm

Power Consumption: 3 VA

Input(s): Includes 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)
Display Scale -99~999 max. See User Manual for other sensor ranges.

Display resolution: According to the probe used. 1/0. 1/5/0.5

Overall Accuracy: ± 0.5% fs

Sampling rate: 1 sample per second

Compliance: EEC directive EMC 89/336 (EN 50081-1, EN 50082-1), EEC directive LV 73/23 and 93/68 (EN 60730-1)

Process Outputs: Out 1: Relay SPDT (8 A-AC1) Out 2: Relay SPST-NO (8 A-AC1)

COMMUNICATION ON TTL PORT TO:

  • Universal programming key (optional)
  • Remote display (optional)
UL & CE for TLZ10

File no. E206847 Ref. UL 873 - CSA C22.2