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Overview
The HC2-S3H is a high accuracy version of the HC2-S3. The HC2S3 is a rugged, accurate temperature and humidity probe that is ideal for long-term, unattended applications. The probe uses an advanced capacitive sensor to measure relative humidity. The probe includes a filter to protect the sensor from dust and particles, for superior performance and reliability.
Read MoreBenefits and Features
- Well-suited for long-term, unattended applications
- Accurate and rugged
- Compatible with all Campbell Scientific data loggers (including the CR200(X) series)
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Technical Description
The HC2S3 comes with a polyethylene filter that protects its sensor from fine dust and particles and minimizes water absorption and retention. Alternatively, a Teflon filter is available for marine environments. The response time is slower when using the Teflon filter.
Specifications
- Electronics Operating Limits: -40° to +100°C
- Storage Temperature: -50° to +100°C
- Diameter: 15 mm (0.6 in.)
- Length w/o connector: 85 mm (3.3 in.)
- Length w/connector: 183 mm (7.25 in.)
- Weight: 10 g (0.35 oz)
- Filter: Polyethylene (standard) or Teflon (optional, ordered separately)
- Current Consumption:
< 4.3 mA @ 5 Vdc
< 2.0 mA @ 12 Vdc - Supply Voltage: 5 to 24 Vdc
- Startup Time: 1.5 s typicala
- Maximum Startup Current:
< 50 mA for 2 μs - Analog Outputs
Offset at 0 V: ±3 mV (maximum)
Deviation for Digital Signal:
< ±1 mV (0.1°C, 0.1% R. H.)
Air Temperature
- Temperature Sensor: PT100 RTD, IEC 751 1/3 Class B
- Measurement Range: -40° to +60°C (default)b
- Output Signal Range: 0 to 1 V
- Accuracy at 23°C: ±0.1°C with standard configuration settings
- Long Term Stability: < 0.1°C/year
- Sensor Time Constant
[63% step change (1 m/s air flow at sensor)]
Standard PE Filter: ≤ 22 s
Optional Teflon Filter: ≤ 30 s - Temperature Accuracy: see graph in manual
Relative Humidity
- Sensor: ROTRONIC® Hygromer IN-1
- Measurement Range: 0 to 100% RH, non-condensing
- Output Signal Range: 0 to 1 Vdc
- Long-Term Stability: < 1% RH per year
- Response Time: Typical 10 s, 63% of a 35% to 80% RH step change (1 m/s air flow at sensor)
- Accuracy at 23°C: ±0.5% RH with standard configuration settings
- Sensor Time Constant
[63% of a 35 to 80% RH step change (1 m/s air flow at sensor)]
Standard PE Filter: ≤ 22 s
Optional Teflon Filter: ≤ 30 s - RH Accuracy over Temperature: see graph in manual
a - The startup time is Rotronics specification. For programming, Campbell Scientific recommends a 2 s delay at 60°C, 3 s delay at 0°C, and 4 s delay at -40°C.
b - Air temperature measurement ranges from -50° to +100°C are possible; contact Campbell Scientific for more information.
Compatibility
Mounting
The HC2S3 should be housed in a 41003-5 10-plate naturally-aspirated solar radiation shield. This radiation shield mounts to a tripod or tower mast, crossarm, or user-supplied pole.
Datalogger Considerations
Compatible Contemporary Dataloggers
| CR200(X) Series | CR800/CR850 | CR1000 | CR3000 | CR5000 | CR7X | CR9000X |
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Compatible Retired Dataloggers
| CR500 | CR510 | CR10 | CR10X | 21X | CR23X | CR9000 |
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