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EDL Ultra Bath stirred liquid temperature calibrators for stable comparison calibration of thermometers and temperature probes.
The EDL Ultra Bath series is designed for comparison calibration of temperature sensors in a stable, stirred liquid environment.
Three models cover temperatures from -40°C to 550°C. The large 42-litre bath and 18-inch tank depth allow multiple temperature sensors to be immersed and compared during the same calibration run.
The Ultra Bath can accommodate different probe shapes and diameters, making it suitable for laboratory and calibration work involving RTDs, PRTs, SPRTs, bi-metal thermometers, liquid-in-glass thermometers and other insertion-type temperature sensors.
Select the Ultra Bath model according to the required calibration temperature range and bath medium.
| Model | Temperature Range | Bath Medium | Stability & Uniformity |
|---|---|---|---|
| UB-4010 | -40°C to 100°C | Silicone oil | -30°C: 5 mK 80°C: 5 mK |
| UB-1020 | 50°C to 200°C | Silicone oil | Below 150°C: 5 mK Below 200°C: 5 mK |
| UB-2050 | 200°C to 550°C | Salt | 250°C: 10 mK 550°C: 30 mK |
| Specification | Details |
|---|---|
| Tank Dimensions | 30.10 × 30.10 cm (11.85" × 11.85") |
| Inside Tank Depth | 45.72 cm (18") |
| Opening | 12.70 × 27.94 cm (5" × 11") |
| Bath Capacity | 42 litres (11 gallons) |
| Exterior Dimensions | 63.83 cm wide × 59.69 cm deep × 134.49 cm high (25.13" × 23.50" × 52.95") |
| Approx. Weight | 249 kg (550 lb), excluding bath fluid and crate |
| Wetted Parts | 304 stainless steel |
| Display Resolution | 0.01°C |
| Interface | RS-232 and iTools |
| Published Electrical Supply | 240 VAC, 25 A, 60 Hz |
The Ultra Bath provides a large working volume for comparison calibration of several temperature sensors at the same time.
Its 45.72 cm (18") internal depth provides useful immersion length for long probes, while the 12.70 × 27.94 cm opening gives sufficient working space for different sensor diameters and configurations.
A pumped stirring system circulates the bath medium continuously to maintain consistent temperature conditions around the immersed sensors.
The Ultra Bath can be used with a wide range of insertion temperature instruments, including:
The UB-4010 covers temperatures from -40°C to 100°C and uses silicone oil as the stirred bath medium.
It is the low-temperature model in the Ultra Bath series and is suitable where calibration points extend below ambient temperature.
| Temperature Range | -40°C to 100°C |
|---|---|
| Bath Medium | Silicone oil |
| Stability & Uniformity at -30°C | 5 mK |
| Stability & Uniformity at 80°C | 5 mK |
The UB-1020 covers temperatures from 50°C to 200°C using silicone oil.
It provides a mid-temperature stirred bath for comparison calibration of suitable temperature probes and thermometers.
| Temperature Range | 50°C to 200°C |
|---|---|
| Bath Medium | Silicone oil |
| Stability & Uniformity below 150°C | 5 mK |
| Stability & Uniformity below 200°C | 5 mK |
The UB-2050 is the high-temperature model, covering 200°C to 550°C.
It uses salt as the bath medium and is intended for higher-temperature comparison calibration of compatible sensors.
| Temperature Range | 200°C to 550°C |
|---|---|
| Bath Medium | Salt |
| Stability & Uniformity at 250°C | 10 mK |
| Stability & Uniformity at 550°C | 30 mK |
A stirred liquid bath provides a common temperature environment for the reference thermometer and the sensors being checked.
The instruments are immersed to the required depth and allowed to stabilise before their readings are compared with the reference measurement.
The large Ultra Bath working volume is particularly useful where several sensors need to be checked at the same temperature point.
Start with the lowest and highest calibration temperatures required. Choose a model whose operating range covers all intended calibration points.
Also consider the type and quantity of sensors, probe insertion length, sheath diameter and the bath medium required for the operating temperature.
| Requirement | Model |
|---|---|
| Calibration below ambient temperature | UB-4010 |
| General mid-temperature calibration up to 200°C | UB-1020 |
| High-temperature calibration from 200°C to 550°C | UB-2050 |
Please provide the following information when requesting a quotation:
The bath model and fluid should be selected for the required calibration temperature range. Electrical supply requirements should also be confirmed before ordering.
Specify UB-4010, UB-1020 or UB-2050 together with the required calibration range and sensor information when enquiring.
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EDL Ultra Bath stirred liquid temperature calibrators for stable comparison calibration of thermometers and temperature probes.
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