Z31A

Digital electronic thermostat

  • Inputs:
    1 input for temperature probes:
    - PTC KTY81-121 (990 Ω @ 25 °C)
    - NTC 103AT-2 (10KΩ @ 25 °C)
    Overall accuracy: ± 0.5 % fs + 1 digit
    Keyboard: Mechanical or "Sensitive-Touch"
     
  • Outputs:
    1 relay output:
    - OUT1 SPDT or SPST-NO 16A-AC1, 6A-AC3 250 VAC, 1 HP 250 VAC, 1/2HP 125 VAC
    12 A max for each terminal with extractable terminal block
    Internal buzzer for alarm indication
     
  • Power supply:
    - 12 VAC/VDC ±10%
    - 12...24 VAC/VDC ±10%
    - 100...240 VAC ±10%
    Frequency AC: 50/60 Hz
    Power consuption: around 4 VA
     
  • Control functions
    Stand-By mode
    Control strategies :
    - ON/OFF
    Up to 4 configurable alarms:
    - Probe error “E1”, “-E1”
    - Temperature tresholds: “Hi”, “Lo”
    Compressor protection
    Start-up delay
     
  • Communication and configuration:
    Universal Programming Key on TTL port
     
  • Dimensions:
    - 78x35 mm, depth 64 mm + 11.5 mm with extractable terminal block
    Connections:
    - 2.5 mm² screw terminals block
    - 2.5 mm² extractable screw terminals block
    IP65 front frame protection, with gasket and screw brakets
    1 display with 3 digits, height: 15.5 mm, red or blue colour

UL Recognition Canada USA

File no. E206847
Ref. UL/CSA 60730-1-2-9