This product is no longer available and has been replaced by: HMP60-L. Some accessories, replacement parts, or services may still be available.
| Services Available |
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Overview
The HMP50 measures both temperature and relative humidity and is suitable for long-term, unattended monitoring. The humidity component features a field-replaceable chip, which eliminates downtime typically required for the recalibration process. The HMP50 is compatible with all Campbell Scientific data loggers.
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Benefits and Features
- Field-replaceable humidity chip eliminates recalibration down time
- Can be mounted to a tower/tripod mast or crossarm
The "-L" on a product model indicates that the cable length is specified at the time of order.
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Detailed Description
The HMP50 measures temperature with a 1000 Ohm platinum resistance thermometer (PRT) and relative humidity (RH) with a 50Y Intercap capacitive chip. The chip is field-replaceable, which eliminates the downtime typically required for the recalibration process. This temperature and RH sensor is compatible with all Campbell Scientific data loggers.
The HMP50 should be housed in a solar radiation shield—typically the 41303-5A. The 41303-5A 6-plate naturally aspirated shield attaches to a mast, crossarm, or tower leg.
Specifications
| Supply Voltage | 7 to 28 Vdc (typically powered by data logger’s 12 V supply) |
| Current Consumption | 2 mA (typical) |
| Housing Material | Chrome-coated aluminum and chrome-coated ABS plastic |
| Operating Temperature Range | -40° to +60°C |
| Diameter | 1.2 cm (0.47 in.) |
| Length | 7.1 cm (2.8 in.) |
| Weight | 0.05 kg (0.1 lb) with 1.83-m (6-ft) cable |
Relative Humidity |
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| Sensor | Vaisala’s INTERCAP capacitive chip |
| Measurement Range | 0 to 98% RH (non-condensing) |
| Accuracy |
|
| Temperature Dependence | See graph in product brochure. |
Temperature |
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| Temperature Sensor | 1000 ohm Platinum Resistance Thermometer |
| Measurement Range | -40° to +60°C |
| Accuracy | See graph in product brochure. |
Compatibility
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
Dataloggers
| Product | Compatible | Note |
|---|---|---|
| 21X (retired) | ||
| CR10 (retired) | ||
| CR1000 (retired) | ||
| CR10X (retired) | ||
| CR200X (retired) | ||
| CR211X (retired) | ||
| CR216X (retired) | ||
| CR23X (retired) | ||
| CR3000 (retired) | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR9000 (retired) | ||
| CR9000X (retired) |
Additional Compatibility Information
Mounting
The HMP50 is typically housed in a 41303-5A 6-plate naturally aspirated shield.
It may also be housed in a 41003-5 10-plate shield if additional hardware is used. A 41322 Adapter Plate allows the HMP50 to be mounted in the lower part of the 41003-5 10-plate shield. Alternatively, a 41381 extension tube and the 6637 split nut plug can be used to mount the HMP50 in a higher part of the 41003-5; the #41381 cable is also required.
Both the 41303-5A and the 41003-5 attach to a crossarm, mast, or user-supplied pipe with a 1.0-in. to 2.1-in. outer diameter.
Documents
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