red lion DITAK 6 Quick Start Manual

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DITAK 6 - ADJUSTABLE TIMEBASE 4-DIGIT TACHOMETER

DESCRIPTION

The DT6 is a self-powered tachometer which features the ability to select the
desired Timebase by simply setting the appropriate DIP switches on the rear of
the unit. It also features a 4-digit LCD display with selectable decimal points.
The DT6 is powered by an internal 3.0 V lithium battery which is field
replaceable.
Like other Micro-Line products, the DT6 combines the use of a custom
CMOS LSI counter chip and custom Timebase gate array. These chips are
mounted on a gold-plated substrate and electrically connected by ultrasonic
wirebonding. Internal electrical interface connections use elastomeric contacts
to provide a gas-tight, corrosion resistant connection. Using the latest in Micro-
Electronic assembly and manufacturing techniques provides units with
reliability and dependability required for industrial service. The DT6 has a
metal die-cast front bezel that is sealed and meets NEMA 4 specifications for
wash-down and/or dusty environments, when properly installed.

SPECIFICATIONS

1. DISPLAY: 4-Digit LCD, 0.35" (9mm) high digits.
2. POWER SOURCE: Internal 3.0 V lithium battery to provide up to 5 years
of continuous service. For replacement procedure, refer to the illustration.
The DT6 also receives power from a logic or magnetic input signal with a
min. peak voltage of 4.0 V, which will serve to extend the battery life.
3. SIGNAL INPUT: * 0-10 KHz from a magnetic or bi-polar output (with a
50% duty cycle). Min. input sensitivity is 0.7 V. Input signal voltages over
6 V peak require an external series resistor to limit the input current to 10 mA
max.
4. TIMEBASE: Adjustable in 1/256 sec. (3.906 msec) increments via DIP
switches located under the rear cover. Timebase ranges from 3.906 msec to
31.996 sec; 0.05% accuracy.

BATTERY INSTALLATION

1. Remove rear cover by placing screwdriver in the slot and gently pushing
downward (See drawing below).
2. When replacing battery, observe proper polarity as shown in the
Application drawing.
3. Allow 32 seconds for the first update to occur after battery replacement.
ADJUSTABLE TIMEBASE FROM 4 MSEC TO 32 SEC
!
SELECTABLE DECIMAL POINTS
!
REPLACEABLE LITHIUM BATTERY PROVIDES UP TO 5 YEARS
!
OF CONTINUOUS OPERATION (Battery included)
RUGGED, SEALED FRONT PANEL CONSTRUCTION (NEMA
!
4/IP65)
ACCEPTS MAGNETIC OR LOGIC TYPE INPUTS
!
WIDE TEMPERATURE RANGE [ -30° to +75°C]
!
5. OPERATING TEMPERATURE RANGE: -30° to +75°C
6. WEIGHT: 5.1 oz (146 g)
* Caution: The case of the DT6 is electrically connected to signal common.

ELECTRICAL CONNECTIONS

Since the DT6 is self powered, only two electrical connections are required.
These connections are made utilizing a 2 position terminal block, located at the
rear of the unit. Refer to the procedures below when connecting the DT6 to the
signal source.
1. Use 2-wire shielded cable for sensor signal leads.
2. Never run signal cable in conduit, troughs, or cable bundles with power
carrying conductors.
3. Connect the shield to the "COMM." terminal at the input of the instrument.
Do NOT connect the shield at the pickup end, leave it "open" and insulate
the exposed shield to prevent electrical contact with the frame or case.
(Shielded cable, supplied on some RLC magnetic pickups, has open shield
on pickup end.)
4. The DT6 should be mounted in a panel that is electrically grounded through
the machine frame to the magnetic pickup housing.
DIMENSIONS & INSTALLATION
The Model DT6 should be mounted in a panel grounded to the machine
frame. After cutting the opening in the panel, slide the panel gasket over the
rear of the tachometer body to the back of the bezel. Then slide the
tachometer through the panel cut-out. Install mounting clips on each side of
the tachometer body with mounting screws. Make sure the side rails of the
clips fit into the recesses in the side of the tachometer body so that the "tang
ends" wedge between the panel opening and the body as the screws are
tightened.
Warning: Lithium battery may explode if incinerated.
Bulletin No. DT6-D
Drawing No. LP0131
Released 10/01
DIMENSIONS: In inches (mm)