High-temperature dry block heater Gemini 550 LRI

digital

Overview
The Gemini 550 LRI is a portable dry-block calibrator for temperature probes covering a range from 35 °C to 550 °C. Its large usable volume enables the simultaneous calibration of multiple sensors: thermocouples, RTDs, thermostats and other probes. A removable block (64 × 160 mm, usable depth 154 mm) allows calibration of large probes.

Insert and versions
The standard insert is fixed and provides 4 holes Ø 8 mm and 4 holes Ø 19.5 mm over a 160 mm depth. The product is available in two versions: model B (Basic) and model S (On-site). Model B is equipped with a controller showing setpoint and temperature measured by the control sensor. Model S adds a digital indicator with connection for a reference probe to minimize gradients and load errors. For laboratory use, connecting the Gemini 550 to a high-performance temperature indicator is recommended.

Key features

• Large calibration volume: 64 × 160 mm usable depth
• Wide operating range: 35 °C to 550 °C
• Removable block

Performance (table)
Temperature range: 35 °C to +550 °C
Absolute stability (30 min): ±0.02 °C at 35 °C
±0.03 °C at 250 °C
±0.04 °C at 550 °C
Cool-down time: 550 °C to 275 °C: 132 min
550 °C to 60 °C: 420 min
Heat-up time: 30 °C to 550 °C: 60 min
Performance: see graph (performance versus temperature)
Calibration volume: 64 × 160 mm usable depth
Block: removable
Pockets: 8 × Ø 8 mm
Usable depth: 154 mm

General specifications (table)
Dimensions: 302 × 176 × 262 mm
Mass: 8.5 kg
Display: resolution 0.01 to 99.99 and 0.1 to 100.0 / 700.0; units: °C, °F, K
Power supply: 100 / 120 V, 50/60 Hz or 200 / 240 V, 50/60 Hz; 1000 W
Communication interfaces: RS-232

Accessories and standard delivery

• Model B (Basic) supplied with: 1 drilled removable insert (8 pockets Ø 8 mm, usable depth 154 mm), Cal Notepad software, serial communication cable, user manual, traceability certificate
• Model S (On-site) supplied with: same items as model B plus built-in digital indicator and connector for Pt100 reference probe
• Metal sleeves available: drilled sleeve (8 × Ø 8 mm), solid sleeve, custom sleeve
• Optional accessory: transport case

Technical characteristics / specifications

• Model: Gemini 550 LRI
• Temperature range: 35 °C to 550 °C
• Usable calibration volume: 64 × 160 mm (usable depth 154 mm)
• Standard pockets: 8 × Ø 8 mm
• Stability (30 min): ±0.02 °C at 35 °C; ±0.03 °C at 250 °C; ±0.04 °C at 550 °C
• Heat-up time: 30 °C → 550 °C in 60 min
• Cool-down time: 550 °C → 275 °C in 132 min; 550 °C → 60 °C in 420 min
• Dimensions (without packaging): 302 × 176 × 262 mm
• Weight (without packaging): 8.5 kg
• Power: 1000 W
• Supply: 100/120 V or 200/240 V, 50/60 Hz
• Display: resolution 0.01 to 99.99 and 0.1 to 100.0 / 700.0; units °C / °F / K
• Interfaces: RS-232
• Available versions: B (Basic), S (On-site) with digital indicator and reference probe connection