Lutron Electronics PHB-318 Operation Manual
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Lutron Electronics PHB-318 Operation Manual

Humidity/temp. barometer
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HUMIDITY/TEMP.
BAROMETE R
Model : PHB-318
OPERATION MANUAL
Y our
purchase
METER
marks
forward for you into the
f i e l d
o f
measurement.
this METER is a complex
and delicate instrument,
its durable structure will
allow many years of use i f
p r o p e r
o p e r a t i n g
techniques are developed.
Please read the following
instructions carefully and
always keep this manual
within easy reach.
of
this
a
step
p r e c i s i o n
Although

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Summary of Contents for Lutron Electronics PHB-318

  • Page 1 HUMIDITY/TEMP. BAROMETE R Model : PHB-318 Y our purchase this METER marks step forward for you into the f i e l d p r e c i s i o n measurement. Although this METER is a complex and delicate instrument,...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. FEATURES..............1 2. SPECIFICATIONS............2 2-1 General Specifications.......... 2 2-2 Electrical Specifications........3 3. FRONT PANEL DESCRIPTION........5 3-1 Probe Head............5 3-2 Humidity/Temp. Sensor........5 3-3 Power ( ) Button..........▲ 3-4 Hold ( ) Button, Unit Button......5 3-5 REC ( ) Button, Mode Button......

  • Page 3: Features

    1. FEATURES * Barometer, Humidity, Temperature meter, three in one, professional. * Barometer unit : hPa, mmHg, inHg. * Humidity with Dew point measurement * Temperature measurement with unit. ℃ ℉ * Fast response time for humidity measurement. * Atmosphere measurement with high accuracy. * Two display can select the four mode ( function ) : Humidity/Temp., Humidity/Dew point, Barometer/Temp., Barometer/Humidity.

  • Page 4: Specifications

    2. SPECIFICATIONS 2-1 General Specifications Display LCD size : 28 mm x 19 mm. Temp. unit ℃ ℉ Barometer unit :hPa, mmHg, inHg. Humidity unit Dew point ℃ ℉ Circuit Custom one-chip of microprocessor LSI circuit. Sensor Barometer Semiconductor Structure Humidity Capacitance humidity sensor, semiconductor...

  • Page 5: Electrical Specifications

    2-2 Electrical Specifications (23± 5 ℃ Humidity / Dew point a. Humidity Range 10 % to 95 % R.H. Resolution 0.1 % R.H. Accuracy 70% RH ≧ ± (3% reading + 1% RH). < 70% RH - 3% RH. ± 3% RH. b.
  • Page 6 Temperature Measuring Range 0 to 50 to 122 ℃ ℃ ℉ ℉ Resolution /0.1 ℃ ℉ Accuracy ± 0.8 /1.5 ℃ ℉ * Above specification tests under the environment RF Field Strength less than 3 V/M & frequency less than 30 MHz only.

  • Page 7: Front Panel Description

    3. FRONT PANEL DESCRIPTION Fig. 1 3-1 Probe head 3-2 Humidity/Temp. Sensor 3-3 Power ( ) Button ▲ 3-4 Hold ( ) Button, Unit Button 3-5 REC ( ) Button, Mode Button ▼ 3-6 LCD Display 3-7 Battery Compartment/Cover...

  • Page 8: Measuring Procedure

    4. MEASURING PROCEDURE 4-1 Mode ( Function ) selection 1)Turn on the meter by pressing the " Power Button " ( 3-3, Fig. 1 ) momentarily. Pressing the " Power Button " ( 3-3, Fig. 1 ) momentarily again will turn off the meter. 2)The meter can select four kind mode ( function ) as : a.

  • Page 9: Unit Selection

    60.9 Value Flashing 25.9 Value Flashing ℃ After the mode ( function ) is selected, it will be memorized into the memory circuit . If power off and on again will present the existing selection mode ( function ). 4-2 Unit selection 1)Turn on the meter by pressing the "...

  • Page 10: Humidity Measurement

    Unit Flashing 60.9 25.9 Unit Flashing ℃ The measuring unit for different mode ( function ) are : Temp. unit ℃ ℉ Barometer unit hPa, mmHg, inHg. Humidity unit Dew point ℃ ℉ After the unit is selected, it will be memorized into the memory circuit.

  • Page 11: Barometer Measurement

    4-4 Barometer measurement 1)Turn on the meter by pressing the " Power Button " ( 3-3, Fig. 1 ) momentarily. 2)For the above 4-1 mode ( function ) selection, please set to : c. Barometer/Temp. ( Upper display show atmosphere value , lower display show Temp.

  • Page 12: Data Record ( Max., Min. Reading )

    4-7 Data Record ( Max., Min. reading ) 1) The data record function records the maximum and minimum readings. Press the " REC Button " ( 3-5, Fig. 1 ) momentarily to start the Data Record function, shows " REC " on the display. 2)With the "...

  • Page 13: Auto Power Off Management

    4-8 Auto power off management 1)The instrument has built-in "Auto Power Shut-off " function in order to prolong battery life. The meter will switch off automatically if none of the buttons are pressed within 10 min.. 2)To de-activate this feature, Select the memory record function during measurement, by pressing the "...

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