Monarch 315 instruction manual Introduction, Specifications

MODEL 315 HUMIDITY TEMPERATURE METER

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:

ξ Operating Temperature – Humidity: 0°C ~ 40°C (32°F ~ 104°F) @ < 80% RH

ξ Storage Temperature – Humidity: -10°C ~ 60°C (14°F ~ 140°F) @ < 70% RH

ξ 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

5.4Notes 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.

1 6