– 2 –
1.0 I
NTRODUCTION
Congratulations on your purchase of a Check•Line® DT-311A or DT-315A
stroboscope/digital tachometer.
Please read the entire instruction manual thoroughly before initial set-up and
operation; the information contained herein will aid you in operating your
stroboscope safely and with excellent results.
If upon delivery shipping damage is detected, do not operate the unit. Notify the
shipping carrier immediately for damage claim instructions. Refer to nameplate
and record serial number for future reference.
Items included with the DT-311A/DT-315A are:
• Handle
• Flash tube removing tool
• AC charger/adapter (Model 315A only)
Optional Accessories:
• Carrying Case
2.0 S
ETUP
The DT-311A and DT-315A may be operated handheld or else mounted on a
tripod for added convenience.
To mount the strobe on a tripod (or any other mounting surface), use screw
1/4 -20unc, length 8mm or shorter for the tripod screwhole on the bottom.
– 11–
9.0 T
ROUBLESHOOTING
FPM reading is displayed but unit is not flashing:
• Flash tube may need to be replaced.
(see "Flash Tube Replacement" section).
Stroboscope is in external trigger mode, no flash:
• Check flash tube. Replace if necessary.
• Check for damaged wiring and/or loose pin connections.
Stroboscope is in internal trigger mode, no flash:
• Check flash tube. Replace if necessary.
• Check for damaged wiring and/or loose pin connections..
DT-311A
DT-315A