1
1.0 OVERVIEW
The HHT13 is a precision hand-held multifunction Tachometer, Ratemeter,
Totalizer and Timer. It is programmable to display directly in Revs, Inches,
Feet, Yards, Miles, Centimeters and Meters or function as a stopwatch or
interval timer. Input / output sockets allow for remote sensing and pulse
output to external indicating devices. For ease of use, the instrument can be
“Locked-on” for continuous operation.
2.0 FEATURE LOCATIONS
Min / Scroll
Down arrow
Start / Reset button
Max / Scroll Up
arrow
LCD display
Menu / Select
and Lock-on
button
Battery compartment
AVOID EXPOSURE - LASER RADIATION IS
EMITTED FROM THIS APERTURE
Output socket
Input socket
Belt clip
Tripod mounting bushing
(underside)
22
Output socket (
T
T
T
T
T
)
Input socket (
S
S
S
S
S
)
Input:
Accepts remote sensor or
Remote Contact Assembly
(HHT13-RCA). 1/8”
(3.5mm) stereo phone plug.
Output:
1 pulse per revolution TTL
output on internal operation.
Pulse repeater with external
sensors. 1/8” (3.5mm) mono
phone plug.
Signal Input
Common
(GND)
Common
(GND)
Signal Input
Signal Input
+3V Out to
Sensor
Common
(GND)
Common
(GND)
+3V Out to
Sensor
Signal Input
Input Connector Detail (Stereo plug)
Output Connector Detail (Mono plug)
11.0 INPUT / OUTPUT
