Extech Instruments 4465CF Bedienungsanleitung

User's Guide

Hygro-Thermometers

Models 4465CF and

446580

Introduction

Congratulations on your purchase of the Extech 4465CF or 446580 Hygro-Thermometer.

The Extech Hygro-Thermometers measure and display temperature and relative

humidity. The 446580 has a PC interface and built-in datalogging capabilities. Careful

use of these meters will provide years of reliable service.

Model 446580 Version 2.0 June 2004

Warranty

EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and

workmanship for one year from date of shipment (a six month limited warranty applies to sensors and cables).

If it should become necessary to return the instrument for service during or beyond the warranty period,

contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website

www.extech.com for contact information. A Return Authorization (RA) number must be issued before any

product is returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper

packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the

user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or

unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or fitness for

a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's

total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no

other warranty, whether written or oral, is expressed or implied.

Specifications

General Specifications

Display Multi-function 3 ½ digit (2000 count) LCD display

Measurement Relative Humidity% (RH) and Temperature (°C&°F)

Data Hold Freezes Display

Datalogger (446580) Records approx. 7000 readings

Data Output 446580: RS 232 PC serial interface

4465CF: Analog 10mvDC per °C/F or %RH

Response Time

Humidity 45% to 95%: ≤3 minutes

95% to 45%: ≤ 5 minutes

Measurement rate 4465CF: 2.5 readings per second

446580: 1 reading per second

Operating Temperature 4465CF: 32 to 122°F (0 to 50 °C)

446580: 32 to 104 °F (0 to 40 °C)

Operating Humidity < 80% RH

Storage Temperature 14 to 140°F (-10 to 60°C)

Storage Humidity <70% RH

Power Supply 9V battery

Battery life 4465CF: 400 hours; 446580: 50 hours (approx.)

Weight 4465CF: 7.0 oz. (198 g); 446580: 7.1 oz. (200 g)

Size 10.6 x 2.7 x1.0" (180 x 72 x 32mm)

Measurement Specifications

Range Resolution Accuracy (Full Scale)

% Relative

Humidity 10% to 95% RH 0.1% RH 30 to 95% RH: ±3% RH

10 to 30% RH: ±7% RH

Temperature 4 οF to 140 οF

(20οC to 60 οC) 0.1ο F/C ±1.5 οF (±0.8οC)

Model 446580 Version 2.0 June 2004

Meter Description

1. Temperature-Humidity Sensor

2. LCD Display

3. ON/OFF/HOLD switch

4. Temperature units switch ( °C & °F )

5. Temperature/Humidity/Record switch

(RECORD position only on the 446580)

6. RECORD / ERASE button (Model 446580 only)

7. Wet bulb calibration adjustment (for factory use only)

8. Dry bulb calibration adjustment (for factory use only)

9. PC Interface jack (Model 446580) or

Analog output jack (Model 4465CF)

The battery compartment and the tripod mount are located

on the rear of the instrument.

Operation

Getting Started

1. Set the TEMP-%RH switch to the TEMP or %RH position.

2. Move the

oC-oF switch to the desired temperature unit of measure.

3. Move the ON-OFF-HOLD switch to the ON position. If the display does not switch on

please check that the 9V battery is installed and is fresh.

4. The Humidity and Temperature sensors are contained in the tip of the meter. Mount or

hold the meter in the area to be tested. For convenience, a standard tripod mount is

located at the rear of the meter.

5. Humidity changes take time (3 to 5 minutes) to stabilize. Please allow time for the

display to settle.

6. When the low battery icon flashes on the LCD, replace the 9V battery.

Displayed Readings

The Model 4465CF displays humidity or temperature readings in the center of the LCD

depending upon the position of the TEMP-%RH switch.

The Model 446580, displays both parameters simultaneously with the primary

measurement in the center of the LCD (large digits) and the secondary measurement in

the lower right hand side of the LCD (smaller digits). The 446580 also momentarily

displays the Date on power-up (in MM:DD format) on the lower left of the LCD. The date

display becomes the clock display (24-hour clock format) after several seconds.

Battery Replacement

The Battery Compartment is located on the lower back of the instrument housing. Slide the

compartment cover off in the direction of the arrow. Replace the 9V battery and secure the

compartment cover.

Data Hold

Set the ON-OFF-HOLD switch to the HOLD position to freeze a displayed reading. The H

icon will switch on. Move the switch to the ON position to continue normal operation (the H

icon will switch off).

Model 446580 Version 2.0 June 2004

Analog Output - Model 4465CF

The Model 4465CF has an analog output whereby the user can connect a datalogging

device such as a chart recorder to capture temperature and humidity readings. The analog

output jack located on the right side of the Model 4465CF accepts a TIP-RING-SLEEVE

3.5mm phono plug (detailed below).

The analog output signal is 10mVDC per Temperature degree (with TEMP selected on

front panel switch) or 10mVDC per Relative Humidity percentage unit (with %RH selected

via front panel switch). For example, for a temperature of 65oF the analog output signal

would be 650mVDC. For a humidity of 50% the analog output signal would be 500mVDC.

The output impedance of the analog circuit is 50 ohms.

PC Interface – Model 446580

Data Acquisition and Datalogger modes

The Model 446580 can perform DATALOGGING and DATA ACQUISITION functions.

These two modes of operation, distinctly different, are explained separately.

In the Datalogger mode, the meter records data remotely then, at a later time, the meter is

connected to the PC and the readings are transferred.

In the Data Acquisition mode, the meter takes readings while connected to the PC. The

readings are taken, displayed, and stored all at the same time.

These two modes are discussed in the subsequent sections:

Datalogging Mode

The meter can log up to 7000 readings that can later be transferred to a PC. The benefit is

that the meter can record remotely without having to be connected to a PC. The supplied

WindowsTM software allows the user to transfer data from the meter to a PC at any time.

Before Datalogging, the user must first set the sampling rate and the real time clock.

Please reading the remaining sections of this manual for instructions on these and other

functions including datalogging, downloading data from the meter to a PC, and the Data

Acquisition mode of operation.

Connecting the Model 446580 to a PC

The Model 446580 has an RS-232 PC Interface jack on its right side. The supplied mini-

plug to DB9 cable (see diagram) is used to connect the meter to a PC. The phono plug end

of the cable is inserted in the meter’s PC interface jack and the DB9 (9-pin) side is inserted

into an available serial port on the PC. Do not run the supplied software until the meter is

properly connected to the PC.

SLEEVE RING (both Ground)

TIP (DC Voltage)

3.5mm phono plug

SLEEVE: Ground to PIN5 of DB9

TIP: Transmit (Tx) to PIN3

RING: Receive (Rx) to PIN2 of DB9

DB9 connector

3.5mm phono plug

Model 446580 Version 2.0 June 2004

Running the supplied Datalogging software

1. Place the supplied software CD in the PC CD-ROM drive and follow the on-screen

instructions for installation.

2. Launch the program by double clicking the program file in the location where it was

saved during installation.

3. Remember not to run the supplied software until the meter is properly connected to the

PC as described earlier.

4. Select COM1 or COM2 when prompted. The PANEL software window will open (see

PANEL window diagram).

Note that the PC Interface communication settings are as follows:

Baud rate: 9600; Parity: none; Data bits: 8; Stop bits: 1

PANEL Software Window Description

When the supplied software is launched the first

software screen that appears is the PANEL window

(see diagram). Refer to this diagram for the

remainder of the manual since other described

functions will use the PANEL window.

1. Menu heading

2. Display facsimile

3. Meter buttons (only TEMP-RH can be selected

remotely)

4. REC (click to put meter in continuous

datalogging mode)

5. rec (click to log one reading in the meter)

6. Sampling rate (for data acquisition, not

datalogger)

7. Current data filename and location for data

acquisition

8. PC COM port status (COM1 or COM2 will

appear if communication is active, NO COM will

appear if communication is not active)

Setting the Meter’s Real Time Clock

1. Click OPTION in the PANEL software window and select SYSTEM TIME SET.

2. The current PC system time and date will now be transferred to the meter.

3. When data is logged, the time and date information is saved alongside each data point.

ID CODE

This field is reserved for future use. At present, a 5-digit code can be entered for reference.

Setting the Datalogger Recording (Sampling) Interval

In the Continuous recording mode (described earlier) the meter stores readings at a certain

interval of time. This interval of time, known as the sampling rate, is user-programmable.

Set the rate as follows:

1. Select MEMORY from the OPTION menu in the PANEL software window. The

LOGGER window will open (see the LOGGER window diagram).

2. Type the desired sampling rate in the SAMPLING field in the LOGGER window. The

rate can be set from 1 second to 65 seconds. This means that readings can be stored

every second up to every 65 seconds.

3. Important! Click on the word SAMPLING after the time interval has been typed. This

will activate the new sampling rate. Confirm the change by closing and re-opening the

LOGGER software window.

PANEL Software

Model 446580 Version 2.0 June 2004

Datalogging One Reading (Manual Logging) with the Model 446580

1. Set the TEMP-%RH-RECORD switch to the RECORD position

2. Press the RECORD-ERASE button once. The RECORD display icon will flash briefly

on the LCD.

3. One reading is now placed in the internal memory of the meter.

Datalogging Continuously (Automatic Logging)

1. Set the TEMP-%RH-RECORD switch to the RECORD position

2. Press and hold the RECORD-ERASE button for 3 seconds. The RECORD display icon

will flash periodically as readings are stored at the programmed sampling interval. To

change the sampling interval, refer to SETTING THE DATALOGGER RECORDING

INTERVAL section later in this manual.

3. To stop recording, momentarily press the RECORD-ERASE button. Note that when

recording is started again, the new data points will be stored in a new ‘set’. Data sets

are discussed in the remaining sections.

Erase Stored Data using the meter’s RECORD-ERASE button

1. With the meter turned off, press and hold the RECORD-ERASE button while turning

the meter on.

2. When the DEL display icon flashes on the LCD, release the RECORD-ERASE button.

All data is now cleared.

3. Note that data can also be erased via software as explained later in this manual.

Download data from the Model 446580

1. With the meter connected to the PC and with the supplied software running, select

MEMORY from the OPTION menu in the PANEL software window. The LOGGER

window will open (see LOGGER window description).

2. To initiate the data transfer, click on the TIME OF RECORDING button.

3. The data will appear in groups or ‘sets’. Each set represents a separate recording

session.

4. To view the data in a particular set, click on the set number and then click on the

SHOW DATA button. The REC LIST software will open and the individual data points

within the selected set will appear.

Logger Software Window Description

1. Total and remaining memory fields –

Total memory is 32K

2. Current Date (YY:MM:DD) and Time

(HH:MM:SS)

3. Number of data sets currently in the

meter

4. Number of data points in the currently

selected data set

5. Press to show the data points

contained in the currently selected

data set

6. User selectable 5-digit reference

number

7. Current sampling rate for the

Datalogging function not the Data

Acquisition function

8. Press TIME OF RECORDING to download the data sets contained in the meter to the

9. List of downloaded data sets

10. Data Set numbers (click on a number to select a set)

Model 446580 Version 2.0 June 2004

Graph the Downloaded Data

1. After downloading data as previously described, select TEMPERATURE or HUMIDITY

from the GRAPH menu heading in the REC LIST

software window.

2. An x-y graph will appear that plots Temperature or

Humidity over Time.

3. The graph can be printed by selecting PRINT from the

menu heading in the graph window.

4. To limit the number of points on the graph, select the

LIMIT menu heading. The RANGE window opens and

is used to narrow the number of data points. Select a

particular temperature/humidity range or select data

points by number (see the RANGE window diagram).

Print the Downloaded Data

1. After downloading data as previously described, select PRINT from the FILE menu in

the PANEL software window.

2. A list will print that includes the data number, date, time, measurement, unit of

measure, and the 9V battery status.

Save the Downloaded Data

1. Download data as previously described and select SAVE from the FILE menu heading

in the PANEL software window.

2. A ‘SAVE AS’ window will open prompting for a filename and a storage location.

3. For convenience, the saved text file (filename.dat) can be opened in spreadsheet

programs such as EXCELTM (see instructions later in this manual).

Erasing stored data via software

With the meter connected to the PC, clear the entire contents of the meter’s internal

memory by selecting ERASE from the OPTION menu in the PANEL software window.

Data Acquisition Mode

1. With the meter connected to the PC and the supplied software up and running, select

SAVE AS from the FILE menu in the PANEL software window.

2. A window will appear prompting for a filename and location. Select a filename and a

storage location.

3. Select START RECORDING from the FILE menu. The PC will now store readings in

the file at the current sampling rate.

4. To change the sampling rate, go to the OPTION menu heading in the PANEL window

and select SAMPLE RATE. Type in the desired sample rate from 1 to 65 seconds.

5. While acquiring data, the PANEL window will show the sampling rate, the filename and

location of the data file, the PC communication status, temperature/humidity

measurement, Time & Date (see the PANEL software window diagram earlier in this

manual).

6. Select LIST or GRAPH from the DISPLAY menu in the PANEL window to choose the

way the data is displayed. In the GRAPH mode the data is presented in an x-y plot.

The user can select LIMIT (to thin the data) and PRINT from the menu headings. In the

LIST mode the data is presented line by line; the user can select CONTINUE, PAUSE,

and PRINT from the menu headings.

7. Select STOP RECORDING from the FILE menu in the PANEL window to end the

recording session.

Select the

Temperature

or Humidity

Range to view

Select the

record numbers

to view

Model 446580 Version 2.0 June 2004



Support line (781) 890-7440

Technical support: Extension 200; E-mail: support@extech.com

Repair & Returns: Extension 210; E-mail: [email protected]

Product specifications subject to change without notice

For the latest version of this User’s Guide, Software updates,and other

up-to-the-minute product information, visit our website: www.extech.com

Dew Point Display

While working in the Data Acquisition mode, the Dew Point

temperature can be viewed by selecting DEW POINT from

the OPTION menu in the PANEL window (see Dew Point

software window diagram).

Opening a data file in ExcelTM

1. Open the spreadsheet program ExcelTM

2. In ExcelTM click on the FILE menu and select OPEN - the OPEN dialog box will appear.

3. In the OPEN box, change FILES OF TYPE to ALL FILES.

4. Locate and open the previously saved data file. The Text Import Wizard will open.

5. Step 1 of 3 in the Wizard: Choose

DELIMITED.

6. Click NEXT.

7. Step 2 of 3 (see diagram): Under

DELIMITERS check the TAB box,

type a quotation mark in the

OTHER box, and select NONE

in the TEXT QUALIFIER field.

8. Click NEXT.

9. Step 3 of 3: Click FINISH. The

data file will now open. You may

wish to save the file as an ExcelTM

file rather than a data file when

finished.

Calibration and Repair Services

Extech offers repair and calibration services for the products we sell. Extech also

provides NIST certification for most products. Call the Customer Service Department for

information on calibration services available for this product. Extech recommends that

annual calibrations be performed to verify meter performance and accuracy.

Relative Humidity

Temperature

Dew Point Temperature

Type quotation mark Select none

Select TAB

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