Monarch 315 Thermometer User Manual


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MODEL 315 HUMIDITY TEMPERATURE METER
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1.0 Introduction:
This instrument is a digital Humidity / Temperature meter incorporating a
polymer capacitive humidity sensor and a semiconductor temperature sensor in
a compact self-contained enclosure.
2.0 Specifications:
Measurement Range:
Humidity: 1%RH ~ 99%RH
Temperature: -20°C ~ 60°C (-4°F ~ 140°F)
Accuracy: at 23°C ± 5°C
Feature Range Accuracy
Humidity 5%RH ~ 95%RH ±3% RH
Temperature (°C) -20°C ~ 60°C ±0.8°C
Temperature (°F) -4°F ~ -140°F ±1.6°F
Resolution:
Humidity: 0.1%RH
Temperature: 0.1°C / 0.1°F
Response Time:
Humidity: 180 sec. in slowly moving air
Temperature: 10 sec. in slowly moving air
Display: Dual four digit display
Sample Rate: 2.5 times per second
Power: 9 Volt Battery, NEDA 1604 or JIS 006P or IEC6F22
Battery Life: Approx. 85 hours of continuous operation with alkaline
battery. Low battery indication.
Operating Condition:
xOperating Temperature – Humidity: 0°C ~ 40°C (32°F ~ 104°F) @ < 80% RH
xStorage Temperature – Humidity: -10°C ~ 60°C (14°F ~ 140°F) @ < 70% RH
xAltitude: Up to 2000 meters (6500 feet).
Dimension: 240×54×34 mm (9.5×2.1×1.3 in)
Weight: Approx.180g (6.4 oz)
Accessories: Battery, Instruction Manual
Options:
33% RH Humidity standard
75% RH Humidity standard
MODEL 315 HUMIDITY TEMPERATURE METER
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5.4 Notes on Temperature and Humidity Calibrations:
1. During either calibration, pressing the button at any time will return
the instrument to the normal operating mode, and no calibration data
will be changed.
2. While performing the humidity calibration, the environment should be
maintained at stable conditions (i.e. constant temperature and constant
humidity) to optimize the accuracy.
3. Always begin the temperature calibration process with the 0°C (32°F)
temperature-controlled chamber and the humidity calibration process
with the 32.8% RH@25°C standard cavity. For maximum efficiency,
insert the probe into the conditioned environment 10 minutes for
temperature or 30 minutes for humidity before applying power to the
instrument and starting the calibration process.
4. Whenever the probe is inserted into a standard humidity cavity or
temperature-controlled chamber, always allow at least 30 minutes to
ensure ambient conditions have stabilized.
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