Checkline DT-326 User Manual

DT-326

LED Stroboscope

Operation Manual

Read manual thoroughly prior to operation.
Use instrument only after reading the complete manual.
Follow all safety precautions.

Safety Precautions

Avoid the following.

Please be sure to closely follow all safety precautions.

Be sure to read the entire instruction manual thoroughly before initial set-up, operation and maintenance.
The instruction manual provides two grades of safety warnings: "Danger" and "Caution".
Follow these precautions.

Danger

"Danger" marking indicates possible death, severe injury or fire if the user disregarded.

Caution

"Caution" marking indicates possibility of severe bodily injury or object damage if operated improperly.

This warning indicates a prohibited operation.

Execute this warning.

Never use in flammable
environments.

May result in fire or explosive.

Danger

Never look directly into the LED light
source.

May result in eye injury.

Do not drop.

May cause damage or injury.

Do not alter, modify or dispose of
improperly.

May cause damage, accidents and void warranty.

To clean, gently wipe with a soft
cloth.

No volatile chemicals such as usage Benzene, Thinner,
or Alcohol.

Caution

Direct sunshine, condensation, dust or caustic
Chemicals, combustible gases
Oils, water, salts

Operate within 0-35°C(32-95°F),
35-85%RH

May alter operation of the unit.

Hot! Hot!

Use a tripod or other fixed device for over 2 hour of
continuous operation.

- Contents -

1

Summary

2

Product Inspection and Preparation

2.1 Confirmation of product packaging

2.2 Removal of protective sheet................................

2.3 Installation of Battery

3

Names and functions of the components

3.1 DT-326 Unit

3.2 Operation panel

3.3 LCD Display

3.3.1

3.3.2

3.3.3

3.3.4

3.3.5

3.3.6

4

Function Instructions

4.1 Power on/off

4.2 Mode Selection

4.3 Internal flashing mode

4.3.1

4.3.2

4.3.3

4.3.4

4.3.5

4.3.6

4.3.7

4.4 External Trigger Mode

4.4.1

4.4.2

4.4.2.1 “Delay time” setting

4.4.2.2 “Delay angle” setting

4.4.3

4.4.4

4.5 Parameter Setting Instruction

4.5.1

4.5.2

4.5.3

4.5.3.1 Delay time setting

4.5.3.2 Delay angle setting

4.5.4

4.6 Power-saving settings

4.6.1

4.6.2

4.6.3

4.7 Connector of External input/output................................

4.7.1

4.7.2

4.7.3

4.7.4

5

Specifications

6

Dimensions

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Display Names and Descriptions
Main data display
Sub data display
Units of Measure: Display
Setting project display
Battery Indication

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Instruction for Internal flashing mode
Changing Units of Measure in Internal Mode
ECO function
Flash rate and frequency “Internal Mode”
Multiply / Divide by 2 Function
Phase Shift (Angle)
Flash Pulse Duration (RATIO) setting

External trigger mode: LCD display information
Flash Delay Setting

Units of Measure- Changing from FPM to Hz................................

ECO feature

Measurement range setting
Trigger Edge setting (External Mode)

Delay setting................................

Back light setting

LED flashing auto off
Auto Power off
LCD back light off

Connector specs and pin type

External Pulse Input................................

External pulse output
Option Cable- Input/ Output cable adaptor

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3232

1 Summary

The DT-326 LED Stroboscope is a portable, AC/DC powered precision instrument used to illuminate and
measure the rotational speeds of objects with a certain speed and a constant period. By illuminating the
rotating object with the DT-326, the moving object appears to remain still when the flashing rate of the
DT-326 is equals the rotational speed of the target object. This allows inspection of rotating and moving
parts, gears, shafts and others. Additionally, the target object can appear to rotate back or forth (frequency)
by utilizing the phase shift function.

Main features

Two units of measure- FPM (flashes per minute) and Hz.
=>refer to 4.3.2 unit conversion

Wide flash range- 60 to 120,000 FPM
=> refer to 4.3.4 Flash rate setting

Multiply or Divide by 2- function to quickly adjust flash rate
=>refer to 4.3.5 Multiply/Divide the flash rate by 2

Phase Shift function - “+3°”, “-3°”
=> refers to 4.3.6 Phase shift by degrees

Adjustable flash duration – (RATIO) Time can change for 0.1° each time as in the range of 0.1° / 360° - 2.5° / 360°
=> refer to 4.3.7 Flash duration (ratio) setting

External input/output port-Synchronization of flash rate with external pulse, or flash rate pulse signal output
=>refer to 4.4 External trigger model, 4.7 External input/output connector

1

2 Product Inspection and Preparation

1. O

ne (1)

LED stroboscope

2.

Four (4) alkaline batteries (AA)

5. Operation Manual

2.1 Confirmation of product packaging

Confirm the following five parts in your DT-326 packaging:

3. One (1) AC

Adapter (120V/240V, 50/60Hz)

6. One (1) Option Cable- Input/ Output cable adapter if you ordered

4. One (1) set of External input/output connector
3240-10P-C [HIROSE ELECTRIC CO., LTD.]

2

2.2 Removal of protective sheet

Remove both protective sheets covering the operation panel and light source as shown below.

Protective sheet

Light source

Operation panel

2.3 Installation of Battery

Turn coin screws counter-clockwise to remove battery cover, and insert batteries in proper polarities as shown
below:

Battery cover

Coin screw

* Avoid battery leakage/ corrosion when not in use for extended period of time.

3

3 Names and functions of the components

3.1 DT-326 Unit

LCD indicator display

Flash rate/frequency
setting dial

LED light source (3 totals)

Operation keys (9 totals)

4

3.2 Operation panel

2

3

4

5

6

No. Key Function Instructions

1 POWER Power the unit on or off

1

7

9
8

10

2 MODE

3 SET

4 ×2

5 1/2

6 RATIO

7 PHASE “+”

8 PHASE “-“

9 Dial

10 ECO

Select Internal/ External/ Parameter mode of operation

Unit change, Select parameter setting item, Store setting value.

Multiplies the flash rate/frequency by a factor of 2.

instruction

Divides the flash rate/frequency by a factor of 2.

Adjusts the flash duration (flash pulse width) in Internal/External mode.

Advance image forwards 3 degrees at a time in internal mode.
In parameter setting mode, change setting value.

Retard image backwards 3 degree at a time in internal mode.
In parameter setting mode, change setting value.

Set flash rate or frequency.
CW; Increase flash rate/frequency.
CCW; Decrease flash rate/frequency.
(Turn dial “quickly” to drastically change value. Turn dial “slowly” to change value 1 digit.)
In parameter setting mode, CW or CCW rotating changes the setting value.

Push once to reduce LED brightness (Economy mode).
Push again to return back (Normal mode).

5

3.3 LCD Display

Auto Range

min

ms

Unit set to FPM

Unit set to Hz

min

min

Min

3.3.1 Display Names and Descriptions

Battery indicator Main data display

Setting project

Sub data

3.3.2 Main data display

- Internal flashing mode: Displays flash rate.

- External trigger mode: Display external trigger frequency.

-Display will indicate “P” or “LCD” (in ON/OFF setting of LCD backlight) in *Parameter setting mode.

*Parameter setting mode: Display LCD backlight setting (“P” or “LCD”)

3.3.3 Sub data display

Internal Flash Mode Display

-To change the degrees of phase shift, press PHASE + or PHASE - keys. The display will reflect the
cumulative angle of phase shift.

-“Flash Time” will be displayed when RATIO key is pressed. The flash time (pulse flash duration) can then
be set using the dial to increase or decrease the flash time from 0 to 2.5 (0 - 2.5°) degrees.

External Trigger Mode Display

-Displays delay time setting. Refer to section 4.4.2 for detail.

*Parameter Mode Display

- Displays the following:

-Selected measuring range

-Delay time (in ms)

-Backlit LCD (ON or OFF)

*Refer to 4.5 “Parameter setting mode” for detail.

3.3.4 Units of Measure: Display

Digital display will show the following according to the unit of measure setting.

(flashes/minutes)

Trigger Divider
Edge Delay Deg
Flash Time

AveLastMinMax

Mem

Hz

sec
Hz

○○○○

Unit

Ｈｚ

Ｈｚ

ＨｚＨｚ

Flashing
(Blinking)

6

3.3.5 Setting project display

Auto Range

Auto Range

Auto Range

Auto Range

Auto

Range

Auto

Range

Auto Range

Auto Range

Auto Range

elay time when delay

Auto Range

The following will be displayed, according to the mode of measure and *parameter settings

Trigger Divider
Edge Delay Deg

Flash

Time Mem

AveLastMinMax

Internal flashing mode

Trigger Divider
Edge Delay Deg
Flash Time Mem
AveLast

MinMax

ECO mode

Trigger Divider

Edge Delay Deg
Flash Time Mem
AveLastMinMax

Positive auto trigger

Trigger Divider
Edge Delay Deg
Flash Time Mem
AveLastMinMax

Set the measuring
range in Parameter
setting mode*

Trigger Divider
Edge Delay Deg

Flash Time

AveLastMinMax

Mem

Set the flash time
(duration)

Trigger Divider
Edge Delay Deg

Flash Time Mem
AveLastMinMax

Choose positive when set
trigger edge in *Parameter
setting mode

Trigger Divider
Edge

Delay Deg

Flash Time Mem
AveLastMinMax

Choose angle setting when
delay set in *Parameter
setting mode

* Please see section 4.5 for Parameter setting data.

3.3.6 Battery Indication

Indicates remaining battery charge capacity in flashing operation mode.

Battery full Battery diminished Near zero

No battery indication while AC powered.

Trigger Divider

Edge Delay Deg
Flash Time Mem
AveLastMinMax

Negative auto trigger

Trigger Divider
Edge Delay Deg

Flash Time Mem
AveLastMinMax

Choose negative when set
trigger edge in *Parameter
setting mode

Trigger Divider
Edge

Delay Deg

Flash Time Mem
AveLastMinMax

Choose d
set in *Parameter setting mode

7

4 Function Instructions

○○○○

○○○○

○○○○

○○○○

○○○○

○○○○

○○○○

4.1 Power on/off

Press “POWER” key to turn on unit. The unit will begin to flash in internal mode and the display will indicate
the flash rate (FPM = flashes per minute).

Operation Indication

Power off

POWER

Press and release

Press “POWER” key again to turn off unit. The display will turn off, and the device will stop flashing.

Operation Indication
Power on

POWER

Press and release

Auto Range
Trigger
Edge Deley Deg
Flash Time

Ave Last Min Max

Auto Range
Trigger
Edge Deley Deg

Flash Time

Ave Last Min Max

min
sec

hHz

min

sec

hHz

POWER

POWER

Auto Range
Trigger
Edge Deley Deg

Flash Time

Ave Last Min Max

Auto Range
Trigger
Edge Deley Deg
Flash Time

Ave Last Min Max

Display will indicate the
flash rate in internal
mode, and the LED light

min

source will begin

sec

hHz

flashing.

Display will turn off and
unit will stop flashing.

min
sec

hHz

4.2 Mode Selection

Press and release “MODE” key to toggle between INTERNAL, EXTERNAL and PARAMETER mode.

*Refer to 4.5 “Parameter setting mode” for details.

Operation Indication

MODE

Press and release

to switch modes

Auto Range
Trigger
Edge Deley Deg

Flash Time

Ave Last Min Max

Internal flashing mode

min

sec

hHz

MODE

Auto Range
Trigger

Edge Deley Deg
Flash Time

Ave Last Min Max

min

sec

hHz

External trigger mode

MODE

Auto Range
Trigger
Edge Deley Deg
Flash Time

Ave Last Min Max

min

sec

hHz

Parameter setting mode

MODE

8