Supported Applications
The Omega HH370-Series is a digital RTD thermometer designed for industrial temperature measurement applications. It operates with platinum-type Resistance Temperature Detector (RTD) sensors, specifically Pt-100 and Pt-1000 elements.
Operating Conditions & Performance
The series measures temperatures across two defined ranges: -100°C ~ 300°C (-148°F ~ 572°F). Accuracy is specified as ±(0.1% reading + 0.4°C) for the Celsius range and ±(0.1% reading + 0.8°F) for the Fahrenheit range; this specification excludes probe error, which must be referenced separately from the probe accuracy data sheet.
The device features a resolution of 0.1°C or 0.1°F on its 4-digit LCD display. It is rated IP67 for enclosure protection and operates within an ambient temperature range of 0°C ~ 50°C (32°F ~ 122°F) at humidity levels between 0 ~ 80% RH. Storage conditions are defined as -10°C to 60°C (14°F ~ 140°F).
Configuration Options
The HH370-Series is powered by three size AAA batteries at 1.5V each. The unit measures approximately 150 x 66 x 31mm and weighs about 175g.
• Sensor Compatibility: Designed for Pt-100 (Class A) and Pt-1000 probes.
• Housing & Protection: IP67 waterproof rating suitable for industrial environments.
• Power Source: Battery operated (3 x 1.5V AAA).
• Accessories: Connection cables are available as optional accessories alongside the Pt-100 probe and instruction menu.
Key Product Differences
The series is identified by the model code HH370. The product overview notes that these devices carry CE, ISO 9001, and ISO 9002 certifications. A specific warning states that these products are not designed for use in human applications.
| Battery life | 100 hr |
| Height | 150 mm |
| Length | 30 mm |
| Measuring Temperature Range, Max | 300 °C |
| Measuring Temperature Range, Min | -100 °C |
| Number of Channels | 1 |
| Operating Temperature Note | Operating Temperature/Humidity:0 to 50°C (32 to 122°F); 0 to 80% RH |
| Power Consumption | 0.53 mA |
| Probe Dimensions Note | Approx 120 mm (4.72") |
| Probe Length | 120 mm |
| Relative Humidity, Max | 0.8 |
| Relative Humidity, Min | 0% |
| Sampling Rate | 2 Hz (2 updates/second) |
| Series ID | HH370-Series |
| Sheath Length | 100 mm |
| Sheath Material | 304 Stainless Steel |
| Storage Temperature, Max | 60 °C |
| Storage Temperature, Min | -10 °C |
| Storage Temperature Note | Storage Temperature and Humidity:-10 to 60°C (14 to 140°F); 0 to 80% RH |
| Supply Power Note | Maximum Voltage at Temperature Input: 60 Vdc or 24 Vrms AC |
| Supply Voltage | 60 Vdc |
| Temperature Accuracy | ± 0.1% of rdg + 0.4 °C |
| Temperature Accuracy Note | Accuracy (at 23 ± 5°C): ± 0.1% of rdg + 0.4°C (± 0.1% of rdg + 0.8°F) Probe Accuracy : IEC751, Class A ± 0.15°C ± 0.002t (t = measurement temperature) |
| Temperature Coefficient | For ambient temperatures from 0 to 18°C and 28 to 50°C, add 0.01% of rdg + 0.03°C or 0.01% of rdg + 0.06°F |
| Temperature Resolution | 0.1 °C |
| Temperature Sensor Type | RTD |
| Weight | 175 g |
| Weight Note | 175 g (6.2 oz) |
| Width | 66 mm |