PCE Instruments PCE-310 User manual
Manual
Air Humidity Meter
PCE-310
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: (561) 320-9162
Fax: (561) 320-9176
www.pce-instruments.com/english
www.pce-instruments.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: (0) 2380 98703 0
Fax: (0) 2380 98703 9
2
INTRODUCTION
Thank you very much for purchasing this psychrometer!
This unique meter is designed as pocket size, battery operated for Humidity, Dry Bulb, Dew
Point, Wet Bulb, External Temperature & Temperature Differential measurement. The sensor
is also specially protected by tunable cap.
The psychrometer is a micro processor- based design. A must device for HVAC engineers
use. No need to whirl the meter or refer to the chart. Easy to get Wet Bulb/ Dry Bulb and Dew
Point temperature quickly!
Features :
Tunable cap to protect sensor.
External Temp. probe.
Triple LCD digital display.
T1-T2 & T2-DP function.(Model:8716) Data Hold to capture readings. Pocket size,
easy to fit in pocket. Low battery indication.
Fast response .
Accurate reading . Maximum record function . Minimum record function.
Dew Point calculated in seconds.
Wet Bulb calculated in seconds.
Microprocessor circuitry for reliability.
Auto power off time frame selectable.
Disable power off.
MATERIAL SUPPLIED
This package contains:
The meter x 1
Battery x 2 (AAA size ) Operation manual
White plain box / gift box
Optional accessory:
External temperature probe : P/N: VZ87P6AZ
Calibration salt bottles: (33% and 75%) / P/N: VZ0033AZ1 , VZ0075AZ1
Hard carry case : P/N: VM68706B
3
WARNING
External probe port
IMPORTANT:
BE SURE TO OPEN THE SENSOR PROTECTION CAP BEFORE STARTING THE MEASUREMENT IN
ORDER TO GET ACCURATE VALUE FOR ALL MODELS
CONTROLS AND INDICATORS
4
4) HOLD Key
- Hold display
- ON/OFF + HOLD = Non-Sleep mode, Non-sleep time is selectable from 2, 5, 10, 20, 40 to
60 min. (The default setting is auto-sleep in 10 min.)
5) key - Switch between , WB and T2.
6) key
- Reset Min/Max memory.
- Display minimum value of memory from power on to the moment.
- Display maximum value of memory from power on to the moment.
AUTO POWER OFF (SLEEP FUNCTION)
Unit will turn itself off after 10 minutes. To override Auto Power Off function, press
ON/OFF + HOLD while the meter is off. When " n " appears (See Fig.A), release HOLD
button. Meter is now in Non-Sleep Mode.
For PCE-310, the auto power off time frame could be selectable from 2, 5, 10, 20, 40 to 60
minutes
MODE OPTIONS
(1) Turning on the protective sensor cap in counterclockwise direction.
(2) Turn meter on by pressing ON/OFF(PCE-310) button.(See Fig.B)
(3) Press C/F key more than 1 sec. to convert reading to desired unit. Both temperature and
relative humidity measurement will display simultaneously.(See Fig.C)
5
DATA HOLD FUNCTION
While in normal mode, press "HOLD" + T/DP ,only the T1, RH will be held.
Press "HOLD"again to release.
While in normal mode, press "HOLD" + T2 /WB ,only the T2 will be held.
Press "HOLD"again to release.
DEW POINT FUNCTION
Press button until “DP” appears on display. Select to display dew point, T1 (air
temp.) or delta T (T1-T2) in any mode while the meter is on. See Fig. E
WET BULB FUNCTION
Press until Wbappear on the LCD. User will see “Wb” temperature indicated on the
display. See Fig. E.
Ex. TEMPERATURE FUNCTION
Plug the external probe into the meter. Press button until “T2” appears on display.
Unit will now display external probe temperature. See Fig. 3
6
MIN./MAX. FUNCTION
1. Press and hold button until (MIN) appears on display. (See Fig. G) Display is
now showing minimum humidity and temperature readings in memory.
2. Press and hold button again until (MAX) appears on display. (See Fig.H).
Display is now showing maximum humidity and temperature readings in memory.
3. To return to current temperature and humidity readings press and hold MN/MX or
button until Min or Max disappear from display.
4. Press RESET or button more than two seconds to clear current reading from
memory.
WARNING: While checking MIN/MAX value for EX, T2, and , don’t replace probe
otherwise you will get error code displayed.
If you don’t plug the probe into socket before turning the meter on, the error code will also
appear when you check MIN/MAX value.
Note: Remenber Low Batteries will tend to give inaccurate readings, so make sure you have
enough power.
&
These functions are only for PCE-310.
is calculated by subtracting the T2 (Ex.temp.) from T1 (Air temp.)
is calculated by subtracting the DP (dewpoint) from T2 (Ex. Temp.)
(1) Press button until appears on display. (See Fig.J)
(2) Press button until appears on display. (See Fig.K)
7
LOW-BATTERY
Battery symbol will appear on display at right top corner when the power is low. Failure to
replace batteries will have an effect on the accuracy of the readings.
1. Open the battery cover on the rear side.
2. Remove the expired batteries.
3. Insert new 2 pcs AAA batteries and make sure the batteries are in correct polarity.
Then, put on the cover.
CALIBRATION
1. Turn the meter off and plug the sensor into 33% salt bottle. Press “ON/OFF + C/F”
keys more than one sec. to enter calibration mode.
2. “32.8%” will flash on LCD and DP, WB is displayed as “---.-“ that means the values are
invalid in the calibration process. After 30 min, the flashing will stop to indicate the
procedure is finished.
3. Move the sensor to 75% salt bottle and press more than one sec. to enter
75.3% calibration. “75.3%” will flash on LCD.
4. Flashing stops after 30 mins, up to now the whole calibration is completed and the
calibration data has been saved in memory.
Note:
a. You can exit calibration procedure without saving by pressing “ON/OFF” key before
step4. At step 4, pressing “ON/OFF” key to exit calibration.
b. Auto power off is disabled in calibration mode.
c. To get high accuracy, calibration should be operated at 23 degree C.
d. If the reading is out of 75.3% ±0.5 % at step 4, it means the calibration is failed.
8
TROUBLESHOOTING
Power on but no display
a) Make sure the time of pressing ON/OFF key is more than 0.1 sec.
b) Check the batteries are in place and making good contact and correct polarity.
c) Replace a new battery and try again.
d) Remove the batteries for one min. and then put back for second try.
No Display
a) Check whether the low battery indicator displayed before display disappears, if yes,
replacing a new battery.
b) Check whether sleep mode is active. If yes, pressing + HOLD or ON/OFF+HOLD
key to disable auto power off function.
Er 1
Circuit error in RH measurement channel, return the meter to the store for repairing.
Er 2
Circuit error in Internal temperature measurement channel, return the meter to the store
for repairing.
Er 3
Circuit error in reference resistor channel, return the meter to the store for repairing.
Er 4
Internal temperature is out of the range.
Er 5
External temperature is out of the range.
Note:
a. Dry Bulb temperature means air (Internal) temperature. Dew point & Web Bulb are
calculated from internal temperature.
b. When the meter is on, plugging in an external probe might cause “ER 5” error in min.
or max mode of ext. Temperature, T2-T1 and T2-dp. pressing “RESET” key could solve
above question.
9
SPECIFICATION
Temp. range: -20~ +50 C(-4~ 122 F)
RH% range: 0~100%RH
Wet bulb range: -21.6 ~ 50.0 ºC(-6.88~122 ºF)
Dew point range: -78.7 ~50.0 ºC (-109.7~122 ºF )
External temp. range: -20~ 70 ºC (-4~158 ºF)
Accuracy: RH%: ± 3% at 25 ºC
Temperature: ± 1 ºF (0.6 ºC)
Response time: 60 seconds typical.
Pocket size: 24.7(H) x 48.4(W) x178.5mm(L)
Extension cable length: Approx. 1.2M (with phone jack 2.5 mm)
Probe (with handle):15cm (approx.)
Power: 2 x 1.5V AAA battery
Optional accessory: External temp.
Probe PCE-310TF
RETURN AUTHORIZATION
Authorization must be obtained from the supplier before returning items for any reason.
When requiring a RA (Return Authorization) , please include data regarding the defective
reason, the meters are returned along with good packing to prevent any damage in
shipment and insured against possible damage or loss.
WARRANTY
The meter is warranted to be free from defects in material and workmanship for a period
of one year from the date of purchase. This warranty covers normal operation and does
not cover battery, misuse, abuse, alteration, tampering, neglect, improper maintenance or
damage resulting from leaking batteries. Proof of purchase is required for warranty
repairs. Warranty is void if the meter has been oponed.
NOTE: "This instrument doesn’t have ATEX protection, so it should not be used in potentially explosive
atmospheres (powder, flammable gases)."
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