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TLZ35 - TLZ series - Ascon Tecnologic

TLZ35 DIN rail mount digital thermostat with defrost - Ascon Tecnologic

DIN rail mount digital thermostat with defrost – Ascon Tecnologic

The model TLZ35 is a digital controller with microprocessor that is typically used in cooling applications that have temperature control with ON/OFF regulation and defrosting control with set time by means of stopping compressor. The instrument has up to 2 relay outputs, one input for PTC or NTC temperature probes and a digital input, that can be configured. The 2 outputs can be used for controlling the compressor or the temperature control device (OUT) and an alarm (AL). The instrument is equipped with 4 programme keys, a 4-digit display and 3 LED signals, in addition to an internal buzzer that is the sound system for alarms. Other important characteristics of the instrument are: programme parameters protection using personalised password, switching on and off (stand-by) of the instrument using the “U” front key, configuration of parameters via the KEY 01 device and the possibility of power supply in the range 100 ... 240 VAC.

Main features

Process inputs:
1 temperature probe input
- PTC KTY81-121 (990 Ω @ 25 °C)
- NTC 103AT-2 (10KΩ @ 25 °C)
Overall accuracy: ± 0,5 % fs
1 digital input Free Voltage

Keyboard:
- Mechanical keyboard:
4 multifunction keys

Process outputs:
Up to 2 relay outputs
OUT1: 1 relay SPST-NO 16 A-AC1,6 A-AC3 / 250 VAC or 1 relay SPDT 16 A-AC1,6 A-AC3 / 250 VAC
OUT2: 1 relay SPST-NO 5 A-AC1 (2 AAC3/ 250 VAC)

Power supply:
- 12 VAC/VDC± 10%
- 24VDC/VAC ± 10%
- 100… 240 Vac (50/60 Hz) ± 10%

Functions:
- Stand-by mode
- ON/OFF control
- Start-up delay
- Compressor protection

Defrost:
Defrost start/stop:
- Manual
- Time based

Defrost methods:
- By compressor stop

Alarms:
Configurable alarm within the following  types:
- Probe errors
- Temperature tresholds: (Hi / Lo)
- External alarms “AL”

Communication and programming:
Interfaces

Communication on TTL port to: 
- Universal programming key

Programming/configuration tools:
- Easy to use front interface for configuration
- Configuration software available for PC

Installation:
Mounting method: DIN Rail Mount
Case dimensions: 70 x 84 mm, depth 60 mm (4 DIN module)

Connections:
Signals connection
- 2,5 mm² screw terminals block

Display and indicators:
1 display line, 4 digit, h: 12 mm, red colour
3 indicating LEDs

Connectable to:
- Programming key A01 for PC connection, backup and other functions

Ascon Tecnologic

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