© Monarch Instrument 2002 all rights reserved
1071-8041-310
MONARCH INSTRUMENT
Instruction Manual
Monarch 315
Mini Humidity Temperature Meter
15 Columbia Drive
Amherst, NH 03031-2334 USA
Phone: (603) 883-3390
Fax: (603) 886-3300
E-mail: support@monarchinstrument.com
Website: www.monarchinstrument.com
Safeguards and Precautions
1. Read and follow all instructions in this manual
carefully, and retain this manual for future reference.
2. Do not use this instrument in any manner
inconsistent with these operating instructions or
under any conditions that exceed the environmental
specifications stated.
3. Do not touch or manipulate the sensor.
4. Do not expose the sensor to direct light. This may
cause false readings.
5. Do not expose the sensor to static electricity.
6. Making measurements of high or low temperatures
can be dangerous. Keep the hand holding the
temperature probe well away from the object
being measured.
7. This instrument is not user serviceable. For technical
assistance, contact the sales organization from
which you purchased the product or Monarch
Instrument directly.
LIMITED WARRANTY
SELLER warrants hardware products to be free from any defect in materials or workmanship for a period of
one (1) year from date of shipment to BUYER. SELLER’s entire liability and BUYER’s sole and exclusive
remedy resulting from any defect in workmanship or material in the hardware product covered by this limited
warranty shall be limited to and fully discharged by the SELLER’s option of replacement or repair of such item
without charge. The limited warranty provided in this clause is in lieu of all other warranties, expressed or
implied, arising by law or otherwise. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE EXCLUDED. This limited warranty shall not be modified except by
an arrangement signed by both parties specifically referencing this clause.
SELLER warrants that any software supplied will operate in accordance with the documentation or manual
supplied therewith in all material respects when used in strict compliance with such documentation or manual.
Notwithstanding the foregoing, BUYER acknowledges that, since software is complex and therefore may
have defects, BUYER’s sole and exclusive remedy for any such defects or breach of this warranty shall be to
require SELLER, within a reasonable period of time, to provide all reasonable programming services to
correct programming errors in the software. Except as provided above SELLER MAKES AND BUYER
RECEIVES FROM SELLER NO EXPRESS OR IMPLIED WARRANTIES OF ANY KIND WITH RESPECT
TO ALL OR ANY PORTION OF SOFTWARE AND BUYER HEREBY AGREES AND ACKNOWLEDGES
THAT IT ACCEPTS THE SOFTWARE IN ‘AS IS’ CONDITION. SELLER HEREBY EXPRESSLY
EXCLUDES ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE WITH RESPECT TO THE SOFTWARE. BUYER agrees that any specific right or remedy
granted to BUYER hereunder with respect to any breach or default by SELLER shall be in lieu of all other
rights and remedies otherwise available to BUYER at law or in equity as the result of such breach or default,
regardless of whether based on contract, tort, strict liability, or other theory of liability.
IN NO EVENT SHALL SELLER BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, OR PUNITIVE LOSSES OR DAMAGES (INCLUDING, BUT NOT LIMITED TO,
LOSSES OR DAMAGES FOR ANY LOST PROFITS OR LOST DATA) AS THE RESULT OF ANY BREACH
OR DEFAULT BY SELLER WITH RESPECT TO THE HARDWARE OR SOFTWARE, EVEN IF SELLER
HAS BEEN ADVISED OR MADE AWARE OF THE POSSIBILITY OF ANY SUCH LOSSES OR DAMAGES
AND REGARDLESS OF WHETHER THE CLAIM IS BASED ON CONTRACT, TORT, STRICT LIABILITY,
OR OTHER THEORY OF LIABILITY.
This limited warranty does not extend or apply to consumables (including, but not limited to, lamps and
batteries, if applicable) or equipment, instruments or accessories which are warranted separately by the
original manufacturer of these items.
DECLARATION OF CONFORMITY
Monarch Instrument
Division of Monarch International Inc.
15 Columbia Drive, Amherst NH 03031 USA
declares that the product:
Name: Humidity Temperature Meter
Model: Monarch 315
to which this declaration relates is in conformity with the following standards:
EMC: EN55011/1991, CISPR 11, Class A
and therefore conforms in accordance with 89/336/EEC-EMC Directive. The
testing of this product was performed by GesTek EMC Lab. in February and March
of 2002. (Ref. No. 0202033E).
6th March 2002
Importer (Amherst,NH) Alan Woolfson, VP Engineering (Authorized Signature)
EN50082-2/1995 / EN61000-4
MODEL 315 HUMIDITY TEMPERATURE METER
Table of Contents
Section Page
1.0 Introduction
2.0 Specifications
3.0 Symbol Definitions and Feature Locations
4.0 Operating Instructions
4.1 Preparation for Measurement ..................................................................3
4.2 Power.........................................................................................................
4.3 Selecting the Temperature Scale.............................................................
4.4 Data-Hold Operation .................................................................................
4.5 Relative Operation ....................................................................................
4.6 MAX/MIN Operation ..................................................................................
4.7 Auto Power Off..........................................................................................
4.8 Low Battery Condition..............................................................................
4.9 Calibration Points.....................................................................................
5.0 Calibration Procedure
5.1 Temperature Calibration...........................................................................4
5.2 Humidity Calibration .................................................................................
5.3 Restoring Factory Calibration..................................................................
5.4 Notes on Temperature and Humidity Calibration ...................................
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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
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
battery. Low battery indication.
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.
MODEL 315 HUMIDITY TEMPERATURE METER
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5.2 Humidity Calibration
1. Turn the unit off. Press and hold the HOLD and °C/°F buttons. While
these two buttons are pressed, turn the power on. Release all buttons
and all the segments on the display will blink.
2. Within 3 seconds of releasing these buttons, press the UREL button to
enter the calibration mode, or the instrument will revert to normal
operating mode.
3. Upon entering the calibration mode, ‘CAL1’ will appear on the second
display.
4. Place the probe in a stable 32.8% RH environment at 25°C and allow
the system to stabilize for 30 minutes. Press the MAX MIN button to
initiate calibration. A single long beep will indicate calibration is
complete, and the instrument will advance into the ‘CAL2’ mode, as
indicated on the second display.
5. Insert the probe in a stable 75.3% RH environment at 25°C and again
allow the system to stabilize for 30 minutes. Press the MAX MIN button
to initiate calibration. A single long beep will indicate calibration is
complete, and the instrument will revert to normal operating mode.
5.3 Restoring Factory Calibration
1. To restore factory default calibration values, turn the instrument off.
Press the HOLD and °C/°F buttons. While these two buttons are
pressed, turn the power on. Release all buttons and all the segments
on the display will blink.
2. Within 3 seconds of releasing these buttons, again press the HOLD
button to restore factory calibration values. A single long beep will
indicate restoration is complete.
MODEL 315 HUMIDITY TEMPERATURE METER
MODEL 315 HUMIDITY TEMPERATURE METER
3.0 Symbol Definition and Button Locations:
Data Hold indication
Minmum indication
Maximum indication
Low battery indication
Auto power off
indication
Relative indication
Humidity display
Unit indication
Temperature displa
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HUMIDITY
9V BAT
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MAX
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MIN
HOLD
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REL
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¢XF
¢XC /
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C20
C60
TEMP:
F1404F
HUMIDITY:
0%RH100
TERY
NEDA 1604 6F22 006P
OPEN
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Feature Locations:
1) Dust mask
2) LCD display
3) ON/OFF button
4) MAX MIN button
5) HOLD button
6) RELATIVE button
7) °C, °F control button
8) Battery cover
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MODEL 315 HUMIDITY TEMPERATURE METER
4.0 Operating Instructions:
4.1 Preparation for Measurement:
To measure ambient humidity and temperature, hold the instrument in the
environment of interest and allow sufficient time for the sensors to respond
to ambient conditions. (See Section 2.0 – Response Time.)
4.2 Power:
Press the button to turn the instrument ON or OFF.
4.3 Selecting the Temperature Scale
When first turned on, the instrument defaults to reading in Celsius (°C). The
instrument toggles between Celsius (°C) and Fahrenheit (°F) each time the
°C/°F button is pressed. The instrument remembers the scale setting when
last turned off and powers on in that setting the next time.
4.4 Data-Hold Function
The present reading is held on the display by pressing the HOLD button.
Pressing the HOLD button again releases the hold function and returns the
instrument to continuous reading.
In the HOLD mode, the UREL, MAX MIN and °C/°F buttons are disabled,
as indicated by two consecutive beeps when pressed.
4.5 Relative Operation
Pressing the UREL button internally memorizes
the main display shows the difference between the new reading and the
memorized value. Press the UREL button again to exit the Relative
operation.
4.6 MAX/MIN Operation
Press the MAX MIN button to enter the MAX/MIN mode. In this mode, both
the maximum and minimum values are simultaneously retained in memory
and updated with every new data sample. The instrument first enters the
MAX mode, and the MAX symbol and value are both displayed. Pressing
MAX MIN again advances the display to the MIN symbol and value. The
next press of the MAX MIN button will cause both the MAX and MIN
symbols to blink. This indicates that the maximum and minimum values
have been updated in memory and the displayed reading is the present
value. Each successive
mode among these options. To exit the MAX/MIN mode, press and hold
MAX MIN for two seconds.
In the MAX/MIN mode, the, UREL and °C/°F buttons are disabled, as
indicated by two consecutive beeps if pressed.
press of the MAX MIN button circulates the display
the present reading and
4.7 Auto Power Off
By default, the instrument powers on in the ‘Auto Power Off’ mode and will
automatically shut off 30 minutes after the last key operation.
To disable this feature, press and hold the HOLD button and then power on
the meter. Two successive beeps indicate that ‘Auto Power Off’ is disabled.
4.8 Low Battery Condition
When the battery voltage is at or below the minimum for proper operation,
the symbol will show on the display indicating that the battery must be
replaced.
4.9 Calibration Points:
Room temperature: 23°C ± 5°C
Temperature calibration points: 0°C and 40°C
Humidity calibration points: 32.8% RH@25°C and 75.3% RH@25°C
MODEL 315 HUMIDITY TEMPERATURE METER
5.0 Calibration Procedure:
Note: Conduct temperature calibration before humidity calibration.
5.1 Temperature Calibration
1. Turn the unit off. Press and hold the HOLD and °C/°F buttons. While
these two buttons are pressed, turn the power on. Release all buttons
and all the segments on the display will blink.
2. Within 3 seconds of releasing these buttons, again press the °C/°F
button to enter the calibration mode, or the instrument will revert to
normal operating mode.
3. Upon entering the calibration mode, ‘CAL1’ will appear on the second
display.
4. Insert the probe into a temperature-controlled chamber at 0°C (32°F)
and allow the system to stabilize for 10 minutes. Press the MAX MIN
button to initiate calibration. A single long beep will indicate calibration
is complete, and the instrument will advance into the ‘CAL2’ mode, as
indicated on the second display.
5. Insert the probe into a temperature-controlled chamber at 40°C (104°F)
and again allow the system to stabilize for 10 minutes. Press the
MAX MIN button to initiate calibration. A single long beep will indicate
calibration is complete, and the instrument will revert to normal
operating mode.
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