Temperature calibrator DTZ-4XXBG

surfacefor thermocouplesfor infrared pyrometers

Description
The DTZ-4XXBG surface probe calibrators are designed for the calibration of a wide range of surface sensors (surface thermocouples, thermistors, thin-film sensors, surface RTDs, ribbon sensors, L-shaped sensors, etc.). Each calibrator consists of a controller and a heated block providing rapid temperature setup, fast and stable heating, multi-segment PID control and an RS-232 interface. With minor modifications these calibrators can be converted into blackbody sources for infrared thermal camera calibration.

Key features

• Available temperature ranges: DTZ-400BG 35–400 °C, DTZ-450BG 50–500 °C, DTZ-460BG 50–600 °C.
• Calibration plate diameter: 130 mm, suitable for sensors of varied shapes and sizes.
• High accuracy: ≤ ±0.5 °C at 200 °C.
• Excellent stability: e.g. ±0.3 °C / 10 min (@300 °C).
• High display resolution: 0.01 °C.
• Multi-segment PID control for high/medium/low temperature zones with minimal overshoot.
• Surface finished with aerospace-grade composite: high hardness, wear resistance and high thermal conductivity.
• Grooved design for precise positioning of L-shaped sensors.
• Insertion port for a reference probe under the center of the surface (precision RTD standard).
• RS-232 communication interface for PC connection.
• Portable and compact: total mass 12 kg.

Specifications table (excerpt)
Models: DTZ-400BG; DTZ-450BG; DTZ-460BG
Temperature range: DTZ-400BG: 35 ~ 400 °C; DTZ-450BG: 50 ~ 500 °C; DTZ-460BG: 50 ~ 600 °C
Calibration plate diameter: 130 mm
Uniformity: 0.3 °C @ RT ≤ t ≤ 100 °C; 0.7 °C @ 100 °C < t ≤ 300 °C; 1.2 °C @ 300 °C < t ≤ 400 °C; 1.8 °C @ 400 °C < t ≤ 500 °C
Stability (10 min): ±0.2 °C @ RT ≤ t ≤ 100 °C; ±0.3 °C / 10 min @ 100 °C < t ≤ 300 °C; ±0.4 °C / 10 min @ 300 °C < t ≤ 400 °C; ±0.6 °C / 10 min @ 400 °C < t ≤ 500 °C
Resolution: 0.01 °C
Rise time: ambient → 400 °C: 30 min
Fall time: 400 °C → ambient (with optional fast-cooling device): 45 min
Stabilization time: 8 min
Communication interface: RS-232
Supported sensor types: surface RTD / Pt100
Oven dimensions: for DTZ-400BG/450BG: 280 (L) × 270 (W) × 190 (H) mm; for DTZ-460BG: 325 (L) × 323 (W) × 214 (H) mm
Controller dimensions: 220 (L) × 175 (W) × 144 (H) mm
Total weight: 12 kg
Storage conditions: -20 °C ~ 60 °C; 5%RH ~ 80%RH (no condensation)

Features / Technical specifications

• Commercial model: DTZ-4XXBG (variants DTZ-400BG, DTZ-450BG, DTZ-460BG).
• Temperature ranges: 35–400 °C (DTZ-400BG), 50–500 °C (DTZ-450BG), 50–600 °C (DTZ-460BG).
• Calibration plate diameter: 130 mm.
• Surface uniformity: typ. 0.3 °C (RT→100 °C), increasing to 1.8 °C depending on range.
• Stability (10 min): typ. ±0.2 °C (RT→100 °C), then ±0.3 / ±0.4 / ±0.6 °C depending on range.
• Specified accuracy: ≤ ±0.5 °C @ 200 °C.
• Display resolution: 0.01 °C.
• Rise time: ambient → 400 °C in 30 min.
• Fall time: 400 °C → ambient in ~45 min with fast-cooling option.
• Stabilization time: 8 min.
• Control: multi-segment PID, multi-stage temperature control, alarm settings.
• Communication: RS-232 (PC connection).
• Supported sensors: surface thermocouples, thermistors, thin-film sensors, surface Pt100 RTDs, ribbon sensors, L-shaped sensors, etc.
• Construction: aluminium block with smooth surface finish; aerospace composite hard coating.
• Additional functions: grooves for precise positioning, insertion port for reference probe beneath center.
• Oven dimensions: 280×270×190 mm (DTZ-400/450BG); 325×323×214 mm (DTZ-460BG).
• Controller dimensions: 220×175×144 mm.
• Total weight: 12 kg.
• Storage conditions: -20 °C to 60 °C; 5%RH to 80%RH (no condensation).