Sper scientific 850025 User Manual
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Sper scientific 850025 User Manual

Mini environmental quality meter
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Mini Environmental
Quality Meter
850025

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Summary of Contents for Sper scientific 850025

  • Page 1 Mini Environmental Quality Meter 850025...

  • Page 2: Introduction

    Sper Scientific. INTRODUCTION For environmental testing anywhere. 850025 combines an anemometer, humidity meter and thermometer into a single compact unit. Features include touch-tone buttons, min/max and hold functions. Comes ready to use with wrist strap, instructions, battery and soft carrying case.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. INTRODUCTION ....2 2. MATERIALS SUPPLIED....2 3.

  • Page 4: Features

    FEATURES • 3 professional environmental instruments in 1: Air velocity, Humidity and Temperature • Lightweight, ergonomic design • Wristlet design provides extra protection to the instrument • Low-friction ball bearing mounted impeller design provides high accuracy at high and low air velocity •...

  • Page 5: Front Panel Description

    FRONT PANEL DESCRIPTION 3. FRONT PANEL DESCRIPTION Fig. 1 1 Hold button 3-1 Hold button Button (Power button) Button ( Power button ) 3 REC button 3-3 REC nutton 4 LCD display 3-4 LCD display 3-5 Wristlet 5 Wristlet 3-6 Anemometer Vane 6 Anemometer vane 3-7 Humdity/Temp.

  • Page 6: Operating Instructions

    OPERATING INSTRUCTIONS Power on/off Button = Power Button 1. Power on: Press once to turn meter on. 2. Power off: Press for > 3 seconds to turn meter off. LCD backlight on/off With the meter on, press once. The LCD backlight will light for 5 seconds, then shut off automatically.

  • Page 7: Unit Selection

    An Mode Selection REC button = Enter button 1. With the power on, press REC for >3 seconds, the display will show Unit. Release REC, then press scroll through the available scales. After the desired scale is selected, press REC to save as the default. 2.

  • Page 8: Hold Function

    Hold Function Pressing Hold will freeze the current reading on the display. The HOLD symbol will be displayed at the top of the display window. To release the Hold function, press Hold again, the HOLD indicator will disappear and the current reading will be displayed.

  • Page 9: Auto Power Off Disable

    Auto power off disable In order to prolong the battery life, this instrument has an Auto Power Off function: the meter will turn off if no buttons are pressed for approximately 10 minutes. To disable the Auto Power Off function, press REC and enter the record function (page 8).

  • Page 10: General Specifications

    GENERAL SPECIFICATIONS Display 8 mm LCD display Measurement 1. Anemometer (Air velocity) /Temperature 2. Humidity/Temperature Operating Humidity Max. 80% RH Operating Temp 0 ~ 50°C (32 ~ 122°F) Over Input Display “- - - -” Power Supply CR 2032 DC 3V battery Power Consumption Approx.

  • Page 11: Electrical Specifications

    ELECTRICAL SPECIFICATIONS Humidity/Temperature Unit Range Res. Acc. < 70 %RH: ±4 %RH 0.1 % 10 to 95 %RH ≥70 %RH: ± (4% rdg +1.2 %RH) 0~50 0.1°C ± 1.2°C Temp. °C/°F 32~122 0.1°F ± 2.5°F Air Velocity ft/min: feet Unit Range Res.

  • Page 12: Warranty

    WARRANTY Sper Scientific warrants this product against defects in materials and workmanship for a period of five (5) years from the date of purchase, and agrees to repair or replace any defective unit without charge. If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available.

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