UEi DT304, Apollo IV DT304 Instruction Manual

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

INSTRUCTION MAN UAL

DT304

Digital Temperature Logger

TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Controls and Indicators

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Features

LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Setup Instructions

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Setting Time/Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Changing Thermocouple Type . . . . . . . . . . . . . . . . . . . . . . . . .6

APO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Logging interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8

Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Measuring Temperature

Thermocouple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Relative Measurment (DT301) . . . . . . . . . . . . . . . . . . . . . . . . .10

MIN/MAX/AVG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Using Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Using Memory

Start/Stop Logging

Clearin Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

View Logged Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Maintenance

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Cleaning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

6-17

i

Introduction

The DT304

Features include

P67 Water/Dustproof rating

• I

• Large Backlit Multi paramater display

• Convenient Probe Storage

• Accepts J,K,T and E type Thermocouples

• Min/Max and Data Hold

• 9,999 Memory position Logging with USB software download

• Dual Differential T1-T2, T3-T4

Safety Notes

These are a few common safety practices for those working around
temperature critical environments:

• Follow the manufacturer’s maintenance
procedures when servicing equipment

• Place ONLY thermocouples (type K,J,T or E) in
the DT304 thermocouple ports

• Make sure your meter is set for the proper
thermocouple type you are using

• Be sure the thermocouple you use can withstand
the temperature extreme it may be exposed to in your service task

• Properly maintain your thermometer and calibrate
it regularly

1

Controls and Indicators

1

(top view)

4

2

3

1. Thermocouple T1, T2, T3 and T4 inputs

2. Display

3. Buttons

4. USB jack

2

LCD Display Functional Description

2

3 4 5 6 7

1

12

13

1. Primary Display: T1/T2 or T3/T4

2. TYPE KJET: Type of thermocouple.

3. SETUP: Setup is in progress.

4. RECALL: The logged readings are displayed.

5. OFFSET: The thermocouple measurement includes an offset.

6. HOLD: The display readings do not change.

7. LOW BA

8. US

9. LOG: Readings are being logged.

. ˚C,˚F, K: Temperature units.

10

11. Secondary Display: Internal temperature of the thermometer,

12. Time Display: 24-hour clock, shows the INTERV

TTERY: Replace batteries.

B: The thermometer is connected to a PC via USB

interface port.

EMORY, MIN, MAX, AVG, and T1-T2 or T3-T4.

M
reading. Shows the memory location initially when a logged
reading is recalled.

SETUP. Shows elapsed time when AVG is on or before clock has
been set. Shows the memory time later on when a logged
reading is recalled.

8
9

10

11

AL length in

3

Buttons

NOTE: Press all the dual function buttons momentarily to activate the
Upper Row Function ,and pr
to activate the Lower Row Functions.

ess these buttons for more than 1 second

Press this button momentarily to turn the backlight on and
off. The backlight turns off after 3
button pressed. If the battery is low, the backlight is
disabled.

Press this button for more than 1 second to turn the
thermometer on and off.

While displaying T1/T2 in the primary display momentarily
pressing this button will alternate between T1/T2 and
T3/T4. Press and hold to scroll the secondary display to
temperature differential . The internal temperature of the
meter in the lower display

Press this button momentarily to step through the
maximum, minimum, and average readings in the
secondary display. When viewing logged readings, shows
the maximum, minimum, and average of the logged
readings. Press this button for more than 1 second to turn
off this display.

The “ “ function is activated in the “RE
“SETUP” mode only

Press this button momentarily to freeze or release the
displayed readings. Press this button for more than 1
second to switch between Celsius (˚C), Fahrenheit (˚F), and
Kelvin (K).

The “ “ function is activated in the “RECALL” and
“SETUP” mode only.

.

0 seconds without any

CALL” and

4