SATO KEIRYOKI PC-5110 User manual

Instruction Manual
Pen Type Digital Thermohygrometers
Model PC-5110
Model PC-5120
3-4, Kanda-kajicho, Chiyoda-ku, Tokyo 101-0045 Japan
URL: http://www.sksato.co.jp/english/
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Thank you for purchasing the Pen type Digital Thermohygrometer Model PC-5110/PC-5120.
- This product is designed to measure temperature and humidity. Do not use it for other purposes.
- Read this manual thoroughly before using the instrument. Keep the manual in a safe place for future
references whenever necessary.
Warning
The PC-5110 and PC-5120 digital thermohygrometers are not explosion-proof. Never use them in an
atmosphere containing flammable gases.
Beware of explosion!
There is a risk of explosion. Take extreme care.
When there anything unclear, contact us or the dealer which you purchased from.
Notes on Use
Be sure to observe the following precautions in order to use this unit correctly.
- Do not drop this unit or apply impact to it. This unit is a precision instrument.
- Never disassemble or modify this unit. Doing so may result in failure.
- Do not use this unit in a place exposed to direct sunlight or near heating equipment. Doing so may
result in deformation of the casing or failure.
- Do not use this unit in an environment where electrical noise is generated. Doing so may result in
unstable display or larger errors.
- Do not wash or wipe this unit with alcohol, thinner, or other solvents. Also, do not wash it in water. If the
unit becomes dirty, wipe it with a tightly wrung cloth that has been dipped in warm water with neutral
detergent.
- Be sure to use this unit within the specified measurement range. Using the unit outside the specified
measurement range will result in failure or damage.
- If this unit is not to be used for a long time, always remove the batteries from the unit. Otherwise, the
batteries may leak fluid, resulting in failure.
- Keep the batteries out of reach of children. If the battery has been swallowed accidentally, consult a
doctor immediately.
- Do not dispose the used batteries in a fire.
- For environmental conservation purpose, dispose of the used batteries in compliance with local rules
and regulations.
** For repair or calibration, contact us or the dealer from which the unit was purchased.

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Overview
The PC-5110 and PC-5120 are compact and light-weight pen type digital thermohygrometers.
These are conveniently carried and easily measure temperature and humidity anywhere.
Features
- Simultaneous display
Temperature and humidity values are simultaneously displayed on a LCD
-Rotary type sensor cap is equipped:
It keeps sensors free of dust.
- MIN/MAX function
Maximum (MAX) and minimum (MIN) temperature and humidity can be measured.
- Auto-power function
The power is automatically turned off if the continuous measurement was not done for 20 minutes.
- HOLD function
The measured value can be frozen.
-Dew point temperature and wet bulb temperature can be displayed (PC-9120 only)
By the calculation of the measured temperature and humidity, dew point temperature and wet bulb
temperature are displayed.

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1. Names of Section
■Front view
■Rear view
(1) Sensor protection cap
- When the unit is not used, the cap protects the sensors against dirt, dust and like
(2) Sensor section
- Temperature sensor (thermistor) and humidity sensor (capacitance type) are equipped.
(3) POWER ON/OFF key
- Press this key to turn the main unit on. Press the key again to turn it off.
(4) HOLD key
- Press the HOLD key to hold (freeze) temperature readings.
(5) MAX/MIN key
- It displays the maximum value or minimum value.
(6) RESET key
- Press the RESET key to clear the maximum and minimum temperature values stored.
(7) MODE key (for PC-5120 only)
- Press this key to switch the display of current temperature, dew point temperature and dry bulb
temperature sequentially.
(8) Display section
- Measured values and setting mode or status are displayed..
(9) Battery compartment
- One button battery (CR2032) is loaded in the compartment.
(10) Clip
- The unit can be clipped on a pocket or like.
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Display section
(11) Humidity value
(12) Temperature value
(13) Measurement unit
(14) HLD: Shows while measured value is being held
(15) MIN: Shows while the minimum measured value is being displayed
(16) MAX: Shows while the maximum measured value is being displayed
(17) AIR: Shows the measured temperature value is being displayed
(18) DP (for PC-5120 only): Shows the dew point temperature value (calculated) is being displayed
(19) WB (for PC-5120 only): Shows the wet bulb temperature value (calculated) is being displayed
(20) Low battery mark: Blinks when battery power is insufficient.
2. How to Use
2-1. Loading Battery
(1) Remove the battery lid by turning it counterclockwise using a
coin or the like.
(2) Insert the coin cell battery (CR2032) so that the positive terminal
(+) is facing upward.
(3) Reinstall the battery lid in the reverse order of removal.
Caution
- If the low battery mark blinks, replace the battery immediately with new one (CR2032).
- Measurements while the battery power is insufficient may result in faulty operation.
When the display becomes dim, replace the battery even if the low battery mark does not blink.
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2-2 How to measure temperature
(1) Press the POWER ON/OFF key to turn the power on. All characters are displays and the both of
current temperature and humidity display and it is in measurement mode.
(2) Before starting the measurement, rotate the sensor protection cap to open.
(3) To turn the power off, press the POWER ON/OFF key again and the display disappears.
Rotate the sensor protection cap to close.
Caution
Be sure to use the instrument within the measuring range (-10 to 50℃). Otherwise, humidity sensor
may deteriorate.
2-3. HOLD Function
When the temperature and the humidity change too frequently during measurement, press the HOLD
key to freeze the display for easier reading.
The MIN/MAX values are also fixed while the HOLD function is being used. In PC-5120, the dew point
and wet bulb temperature are also fixed while the HOLD function is being used.
(1) Press the HOLD key. “HLD”s show in display section and the measured value is being hold,
(2) Press the HOLD key again and the “HLD”disappears and HOLD function is released.
2-4. MIN/ MAX/ Function
The maximum and minimum values among the measured values can be displayed by pressing the
MAX/MIN key.
(1) Press the MAX/MIN key,“MIN” character shows while the minimum measured values of
temperature and humidity are displayed,
(2) Press the MAX/MIN key again. “MAX” character shows in display section. The maximum values
of temperature and humidity are displayed.
(3) Press the MAX/MIN key again. “MAX” character disappears and the current temperature and
humidity display.
The stored data are cleared when the power is turned off.
Current
temperature/humidity
Minimum values
Maximum values
MAX/MIN Key
MAX/MIN Key
MAX/MIN Key

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2-5. RESET Function
Use this key to clear the maximum and minimum values that are stored.
Press the RESET key until all character light to clear and all stored data are cleared.
2-6. Dew point temperature (DP) and Wet bulb temperature (WB) display Function
(for PC-5120 only)
Dew point temperature and wet bulb temperature are calculated using the measured values of
temperature and humidity.
(1) Press the MODE key,“DP” character shows while the value of the dew point temperature is
displayed,
(2) Press the MODE key again. “WB”character shows in display section. The values of wet bulb
temperature is displayed.
(3) Press the Mode key again. “AIR”character disappears and the current temperature display.
It is available to activate HOLD function and MIN/MAX function while dew point temperature and wet
bulb temperature are displayed.
2-7. Auto Power-off Function
The power will be turned off automatically if the unit is not operated for approx. 20 minutes. This
function conserves battery power if you forget to turn the power off.
To release the Auto Power-off Function,
(1) Press the POWER ON/OFF key while pressing HOLD key again under the power is turned off.
(2) When “n” is displayed after all characters light, release the key. Then “n”disappears and
the current temperature and humidity are displayed. Now, the Auto power-off function is
released.
NB: When the power is turned off, the release of theAuto power-off function is invalid.
Wet bulb temperature
MODE Key
MODE Key
MODE Key
Dew point temperature
Temperature

6. Error Message
If an error occurs, one of the error codes below will be shown on the temperature display section.
Display section
Error code
Causes
Remedy
Lower section
E 02
Measured temperature value is
lower than display range
Bring the value within the
measuring range. If the error
message is still displayed, stop
using it and contact us or the
dealer.
E 03
Measured temperature value is
higher than display range
Upper section
E 04
Measured temperature value is
out of the display range
E 11
Electronic circuit is abnormal
Stop using it and contact us or the
dealer.
E 33
Measured humidity value is out
of the display range
7. Specifications
Product : Pen type thermohygrometer
Model : No. 8070-10 PC-5110, No. 8070-20 PC-8070-20
Measuring range : Temperature (AIR) : -10.0 to 50.0℃
Humidity : 5.0 to 95.0%rh
Dew point temp.(DP):Arithmetic display in the measuring range of temp/humi.
Wet bulb temp.(WB): - ditto –
Accuracy : ± 1.0℃for temperature
: ± 5.0%rh at 23℃for humidity
Resolution : 0.1℃for temperature
: 0.1%rh for humidity
Operation ambient : within the measuring range (no condensing)
Sensing elements : Thermistor for temperature
Electrostatic capacitance type humidity sensor
Power requirements : One coin lithium battery (CR2032)
Battery life : About 500 hours continuous
Materials : ABS resin
Dimensions : 167(W) 33(H)15(D) mm
Weight : Approx. 49g (including the battery)
Standard Accessories : One coin lithium battery (CR2032)