HT 4000 User Manual
  1. Manuals
  2. Brands
  3. HT Manuals
  4. Measuring Instruments
  5. 4000
  6. User manual

HT 4000 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
ENGLISH
User manual
©Copyright HT ITALIA 2011
Release EN 1.02 - 28/12/2011

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 4000 and is the answer not in the manual?

Questions and answers

Related Manuals for HT 4000

Summary of Contents for HT 4000

  • Page 1 ENGLISH User manual ©Copyright HT ITALIA 2011 Release EN 1.02 - 28/12/2011...

  • Page 2: Table Of Contents

    HT4000 Index: SAFETY PRECAUTIONS AND PROCEDURES ............2 1.1. Preliminary ........................2 1.2. During use ......................... 2 1.3. After use ..........................2 GENERAL DESCRIPTION ................... 3 PREPARATION FOR USE ................... 3 3.1. Initial ..........................3 3.2. Power supply ........................3 3.3.

  • Page 3: Safety Precautions And Procedures

    HT4000 1. SAFETY PRECAUTIONS AND PROCEDURES This apparatus conforms to EMC standards relating to electronic measuring instruments. For your own safety and that of the apparatus, you must follow the procedures described in this instruction manual and carefully read all the notes preceded by the symbol Strictly keep to the following instructions before and during measurements: •...

  • Page 4: General Description

    HT4000 2. GENERAL DESCRIPTION The HT4000 meter can perform the following measurements: • Air speed measurement with 30 mm diameter external probe • Airflow measurement in m /min (CMM) and ft /min (CFM) • Air temperature measurement in °C/°F with external probe •...

  • Page 5: Operating Instructions

    HT4000 4. OPERATING INSTRUCTIONS 4.1. INSTRUMENT DESCRIPTION LEGEND: 1. External probe terminal 2. Internal sensor for atmospheric pressure measurement 3. LCD display 4. HOLD/RECALL key 5. MAX MIN key / UNIT key 8. ESC/REC key / SET key 11. Sensor fan 12.

  • Page 6: Function Key Description

    HT4000 4.3. FUNCTION KEY DESCRIPTION 4.3.1. The key has a dual function: Just press it to turn on the instrument. Press it for a longer time to turn off the instrument. If the key is pressed cyclically you can select the quantities on secondary display (temperature, humidity, CMM/CFM and atmospheric pressure).

  • Page 7: Unit Key

    HT4000 4.3.6. / UNIT key The key / UNIT has many functions: UNIT Press and hold to select the measuring unit of quantities on the main display (see § 4.4.2) Just press to confirm selection of the measuring unit It permits setting the measurement values of the volumetric flow (see § 4.6) It permits to confirm cancellation of internal memory (see §...

  • Page 8: Preliminary Operations

    HT4000 4.4. PRELIMINARY OPERATIONS 4.4.1. Activation of display backlight Just press the key / SET to activate or deactivate display backlight which shuts off automatically after approx. 30s. To activate or deactivate the function of display auto power off operate as follows: 1.

  • Page 9: Measurement Of Air Speed As Well As Temperature/Humidity

    HT4000 4.5. MEASUREMENT OF AIR SPEED AS WELL AS TEMPERATURE/HUMIDITY CAUTION Do not touch the fans in the upper side of the external sensor to avoid any damage. Fig. 3: Measurement of air speed and temperature/humidity 1. Connect the external probe with the upper side of the instrument through the corresponding terminal (see Fig.

  • Page 10: Measurement Of Air Flow

    HT4000 4.6. MEASUREMENT OF AIR FLOW CAUTION Do not touch the fans in the upper side of the external sensor to avoid any damage. 1. Connect the external probe with the upper side of the instrument through the corresponding terminal (see Fig. 1 – part 1) 2.

  • Page 11: Saving Of Results

    HT4000 4.8. SAVING OF RESULTS The instrument is capable of storing data relative to air speed measurement into the internal memory (max 99 locations). 1. When the result is shown on main display press the key ESC / REC 2. The instrument shows an instantaneous message “Memory” on secondary display as well as the memory location where the result is saved 4.9.

  • Page 12: Maintenance

    HT4000 5. MAINTENANCE 5.1. GENERAL INFORMATION 1. This digital meter is a precision instrument. Whether in use or in storage, please do not exceed the specification requirements to avoid any possible damage or danger during 2. Do not place this meter in high temperature or expose to direct sunlight 3.

  • Page 13: Technical Specifications

    HT4000 6. TECHNICAL SPECIFICATIONS 6.1. CHARACTERISTICS Accuracy is indicated as [%rdg + values] at 23°C ± 5°C <80%RH Air speed measurement with external probe Meas. units Range Resolution Accuracy 0.4 ÷ 25 ±(2%rdg+ 0.2) 1.5 ÷ 90 ±(2%rdg+ 0.8) Km/hr (kph) 0.9 ÷...

  • Page 14: General Data

    HT4000 6.1.1. General data Mechanical characteristics Dimensions of instrument (LxWxH): 130 x 56 x 38 mm ; (5 x 2 x 1 in) Dimensions of external probe 195(L) x 47 (W) x 30(H) ; (8 x 2 x 1 in) Length of external probe’s cable: 950mm (37 in) Weight of instrument (including battery): 160g (6 ounces)

  • Page 15: Service

    HT4000 7. SERVICE 7.1. WARRANTY CONDITIONS This equipment is guaranteed against material faults or production defects, in accordance with the general sales conditions. During the warranty period (one year), faulty parts may be replaced. The manufacturer reserves the right to decide either to repair or replace the product.

Table of Contents