Digital Thermostat <PXR3>

Temperature alarm with on/off contact output, DIN 24 x 48 mm size

Suited for overheat detection of thermocouples or thermistors used in machines or equipment.

  • Accepts thermocouple input or thermistor input
  • Allows you to quickly check alarm setpoint and process value
  • Front waterproof structure equivalent to NEMA-4X standard
  • Two relay-contact outputs available optionally
  • Optional DIN rail mounting adapter allows rail-mount or wall-mount
  • UL and C-UL certified


No. of input 1
Range & accuracy Type J thermocouple: 0–800°C, accuracy ±0.5% FS ± 1 digit ± 1°C
Type K thermocouple: 0–1200°C, accuracy ±0.5% FS ± 1 digit ± 1°C
Type R thermocouple: 0–1600°C, accuracy ±0.5% FS ± 1 digit ± 1°C
Type T thermocouple: 0–400°C, accuracy ±0.5% FS ± 1 digit ± 1°C
Type E thermocouple: 0–600°C, accuracy ±0.5% FS ± 1 digit ± 1°C
Thermistor: 0–100°C, accuracy ±4°C
Note 1: Switching between thermistor and thermocouple is not allowed.
Note 2: Thermocouple type setting can be changed by front key operation.
Note 3: Reading error of thermistor sensor or thermocouple is not included.
Measurement cycle ≤ 0.5 s
Burnout Thermocouple (UUU), thermocouple (LLL)
Input correction Configurable within ±10% of range
Display Green LED
Measured value, alarm setpoint, parameter name, parameter setpoint
Operation keys 3 keys
Alarm value setting resolution: 1°C
Key lock available
Alarm output SPST 1 or 2 points
High or low limit alarm (HL, HH, LL are available on two outputs version)
Mechanical life of contact: 10 million times
Contact capacity: 220 V AC or 30 V DC, 1A (resistive load)
Alarm hysteresis width: configurable within 0–110% of range
Power supply voltage 100–240 V AC, 50/60 Hz
Operating environment -10°C to +50°C, RH90% or less (non condensation)
Mounting Panel mount
Optional DIN rail mounting adapter (ZZP*CTK368715P1) allows rail-mount or wall-mount
Dimensions and weight 24 × 48 × 85 mm, approx. 150 g
Terminal Screw clamp terminal
Others For thermistor input version, a thermistor sensor is provided.

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