TPI 597C1 User Manual

597

Digital Hygrometer / Psychrometer

The Value Leader

TM

www.tpi-thevalueleader.com

Contents

1. Introduction

2. General Overview & Guidelines

3. Instrument Overview

4. Keypad Functions

5. Operating Instructions

6. PC Communication

7. Troubleshooting

8. Battery Replacement

9. Care & Cleaning

10. Specifications

1. Introduction

Thank you for purchasing TPI brand products. The TPI 597 digital
hygrometer / psychrometer is a state of the art, easy to use humidity
tester designed to display ambient, dew point, and wet bulb
temperature as well as humidity. The instrument is ruggedly
constructed and comes with a 3 Year Guarantee.

2. General Overview & Guidelines

The TPI 597 hygrometer is guaranteed free from defects in materials and

workmanship for 3 Years from the date of purchase. This guarantee does not
affect your statuary rights. For additional information please refer to the
included warranty card or contact TPI at 800-368-5719.

optimum performance, calibration is recommended once every year.

To obtain warranty performance or calibration of your meter: - Include with
the product your name, address, phone number, written description of the
problem and proof of purchase date. Carefully package and return to:

TPI / Attn. Repair
9615 SW Allen Blvd. Suite 104
Beaverton, OR 97005

. To maintain

General Guidelines:

Always allow the 597 sufficient time to acclimate to the test
environment especially when moving from room to room.
Always store and operate the 597 within the temperature and humidity
limits outlined in the specifications area of this manual.

Never allow any object to enter the sensor area of the wand.

Your TPI 597 comes complete with the following standard accessories:

• TPI 597 Instrument

• Rubber Boot

• Battery (9Volt)

• Instruction manual

3. Instrument Overview

Rubber Boot Protects the instrument from accidental damage

Display Large 2 parameter LCD display

Sensor Cage Houses and protects the sensor

Keypad Selects all available functions

Sensor Wand Handle for maneuvering sensor

RS-232 Output Jack Use with optional cable part number A500 to

stream data to a computer

Rubber Boot

Display

Sensor Cage

Sensor Wand

Keypad

RS232 Output
Jack

4. Keypad Functions

Turns the instrument ON and OFF.

HOLD

°C
°F

REC

MODE

RCL

Freezes the displayed reading. When hold is active “DH” is
displayed.

Switches the displayed temperature reading between Celsius and

Fahrenheit.

Toggles the record feature ON and OFF. When record is active
“REC” is displayed.

Toggles the displayed temperature reading between ambient (Ta),
dew point (Td), and wet bulb (Tw).

When record is active, recall (RCL) is used to toggle between
maximum recorded values (MAX), minimum recorded values
(MIN), average recorded values (AVG), and turn on RS232
communication (RS-232).

5. Operating Instructions

1. Press the key to turn the 597 on.

2. Humidity will be displayed in the upper portion of the display and
temperature will be displayed in the bottom portion of the display.

3. Press the key to select the desired unit of measure for
temperature.

4. Hold the sensor wand in the area to be tested.

4. Press the key to cycle through the type of displayed temperature.

Ambient temperature = “Ta” displayed
Dew Point temperature = “Td” displayed
Wet Bulb temperature = “Tw” displayed

5. Press the key to freeze the displayed readings as necessary.

HOLD

MODE

°C
°F

Relative humidity (RH) dis­played in percent.

Temperature displayed in
Celsius or Fahrenheit.
Ta = Ambient Temperature
Td = Dew Point Temperature
Tw = Wet Bulb Temperature

Using record (REC) and recall (RCL)

1. Press the key to activate record mode.

REC

2. Press the key repeatedly to toggle the display through maximum,

RCL

minimum, average readings, and to activate PC communication.

Maximum reading = “MAX” displayed
Minimum reading = “MIN” displayed
Average reading = “AVG” displayed
RS-232 communication active = “RS-232” displayed

3. Press the key to return to normal operation.

REC

6. PC Communication (RS-232)

1. Connect the A500 RS232 cable to the TPI 597 and computer.

2. As outlined above, turn the 597 on and activate communication mode.

3. Open Microsoft Hyper Terminal (or other serial program) and set the COM
port as shown below.

a. Baud Rate: 9600
b. Data Bits: 8
c. Parity: None
d. Stop Bits: 1
e. Flow Control: None

4. The TPI 597 will stream data in ASCII format with an update rate of
approximately 5 seconds.

7. Troubleshooting

Problem Solution

Unit will not turn on Change the battery

Will not display humidity or Return to TPI for service
temperature.

8. Battery Replacement

1. Remove the unit from the protective boot. The battery cover is at the
bottom of the unit and is marked battery.

2. Loosen the battery compartment screw and remove the battery door by
pulling on the screw.

3. Replace the battery.

4. Install the battery compartment door and tighten the screw. Put the
protective boot back on the unit.

9. Care & Cleaning

Clean the 597 with a soft lint free cloth. Do not attempt to clean the sensor.

10. Specifications

Display: Dual display LCD with annunciators

Measurement Range and Accuracy

Humidity:
Range: 0% to 100%
Accuracy: +/-2% RH
Resolution: 0.1% RH

Temperature:
Range: -40°F to 122°F
Accuracy: +/-(0.5% of reading + 0.8°F + 3 digits)
Resolution: 0.1°

Range: -40°C to 50°C
Accuracy: +/-(0.5% of reading + 0.4°C + 3 digits)
Resolution: 0.1°

Operating Temperature & Humidity (Base Unit):
32°F to 122°F (0°C to 50°C) at less than 90% RH

Power Source:
9V Alkaline Battery

Dimensions:

5.8” x 2.9” x 1.2” (148mm x 73mm x 30mm)

Test Products International, Inc.

9615 SW Allen Blvd., Ste. 104

Beaverton, OR 97005

Tel: [phone] Fax: [phone]

www.tpi-thevalueleader.com

Test Products International, Ltd.

342 Bronte Road South, Unit #9

Milton Ontario Canada L9T5B7

Tel: [phone] Fax: [phone]