Center 316 User manual

C
0
F4
HUMIDITY:
TEMP: 20 140 F
100%RH
60 C
HUMIDITY
TEMPERATURE
METER
CENTER Technology Corporation
316

TITLE PAGE
I. Introduction ....................................... 1
II. Specifications.................................... 1
III. Symbol Definition and Button
Location............................................. 3
IV. Operating Instructions.................... 4
4.1 Power-Up ....................................... 4
4.2 Selecting the Temperature Unit...... 4
4.3 Data-Hold Operation ...................... 4
4.4 Relative Operation.......................... 4
4.5 MAX/MIN Operation ....................... 4
4.6 Auto Power Off............................... 5
4.7 Low Battery Condition.................... 5
C O N T E N T S

Humidity Temperature
1
I. Introduction:
This instrument is a digital meter that measures
both humidity and temperature.
II. Specifications:
Display: Dual display
Measurement Range:
Humidity: 0%RH ~ 99%RH
Temperature: -20°C ~ 60°C
(-4°F ~ 140°F)
Wet Bulb Temperature Range:
-20°C~60°C
(-4°F ~ 140°F)
Dew Point Temperature Range:
-20°C~60°C
(-4°F ~ 140°F)
Accuracy: (at 23°C ± 5°C)
Range Accuracy
5% RH ~ 95% RH ±3% RH
-20°C ~ 60°C ±0.8°C
-4°F ~ -140°F ±1.6°F
Resolution: 0.1%RH , 0.1°C / 0.1°F
Response Time: (@ t90; in slowly moving air)
Humidity: 180 sec
Temperature: 10 sec
Operating Conditions: 0°C ~ 40°C; <80% RH
Storage Conditions: -10°C ~ 60°C; <70% RH
Altitude: Up to 2000 meters.
Sample Rate: 2.5 times per second
Battery: 9 V Battery,
NEDA 1604 or JIS 006P
or IEC6F22

Humidity Temperature
2
Battery Life: 85-hours continuous;
(with alkaline battery)
Dimension: 240x54x34 mm
9.5x2.1x1.3 inches
Weight: Approx.180g (6.4 oz.)
Accessories: Battery, instruction
manual

Humidity Temperature
3
III. Symbols and Buttons:
○
1Dust cover ○ 5HOLD button
○
2LCD display ○ 6DP/WB/Ambient
Temperature button
○
3ON/OFF button ○ 7°C/°F select button
○
4MAX/MIN button ○ 8Battery cover
HUMIDITY:
TEMP:
4
6
7
5
3
2
F1404F
0%RH100
C
20 C 60
8
1
OPEN
9V BAT
NEDA 1604 6F22 006P
TERY
Maximum Indication
Minimum Indication
Low batter
y
Indication
A
uto
p
owe
r
Indication
Readin
g
Indication
Data Hold Indication
Unit Indication
Unit Indication
Readin
g
Indication
Dew point & Wet bulb
temperature Indication

Humidity Temperature
4
IV. Operation Instructions:
4.1 Power-Up:
Press the ○
Ikey to turn the
Humidity/Temperature meter ON or OFF.
4.2 Selecting Temperature Units:
When the meter is first powered on, the default
scale setting is set to the Celsius (°C ) scale. To
change to Fahrenheit (°F) press the ”C/°F” button.
Press again to revert to Celsius. The next time the
meter is turned on, the scale setting will be the
same as it was when you powered off last time.
4.3 Data-Hold Operation:
The present reading may be held on the display
by pressing the “HOLD” button. When the held
data is no longer needed, release the data-hold
operation by pressing the “HOLD” button again.
When the meter is in the Data Hold mode, the
“REL”, “MAX/MIN”, and “°C/°F” buttons are
disabled.
4.4 DP/WB/Ambient Temperature Operation:
The Meter displays ambient temperature when
first turned on. To display dew point(DP)
temperature , press WB/DP once . Press DP/WB
again to switch to wet bulb (WB) temperature.
Pressing DP/WB a third time returns the Meter to
ambient temperature. The display indicates when
dew point and wet bulb temperature are selected.
4.5 MAX/MIN Operation:
Pressing the “MAX/MIN” button places the meter in
the MAX/MIN mode. Under this mode the maximum
value and minimum value is kept in the memory
simultaneously and updated with every new data
reading.
Pressing the MAX/MIN button will display the MAX
indicator and the Maximum value on the display.
Pressing MAX/MIN again will display the MIN
indicator and the Minimum value on the display.

Humidity Temperature
5
Pressing MAX/MIN again causes the MAX and MIN
indicators to blink together. This means that these
data have been updated in the memory and the
reading is the present temperature and humidity.
When the meter is in the MAX/MIN mode, the
“°C/°F” buttons are disabled. To exit the MAX/MIN
mode, one may press and hold MAX/MIN for two
seconds.
4.6 Auto Power Off:
By default, when the meter is powered on, it is in
the auto power off mode. The meter will power
itself off after 30 minutes if no key operation is
performed. To disable the auto power off feature,
press and hold the HOLD button and then power
on the meter, The auto power off symbol will
disappear to indicate that auto power off is
disabled.
4.7 Low Battery Condition:
When the battery voltage is under proper
operation requirement, the symbol will show
on the LCD and the battery needs to be replaced
with new one.
Optional Accessories:
33%RH Humidity standard
75%RH Humidity standard

CENTER TECHNOLOGY CORP.
4 / F NO. 415, Jung-Jeng Rd., 238 Shu-Lin, Taipei, Taiwan
E-Mail : [email protected]
http : / / www.centertek.com GCA000316-02000
Distributor in Australia
Pacific Sensor Technologies Pty Ltd
Unit 4, 3 Neutron Place Rowville, VIC 3178 Australia
1300 662 720 | [email protected]
www.pacificsensortech.com.au