1.
INSPECTION
Inspection should
be performed upon receipt. If damage has occurred in shipment, file a claim
with the carrier immediately. It is necessary to contact your supplier
or Tinker & Rasor, be sure to include all information such as serial
number, purchase order number and invoice number.
2.
GENERAL INFORMATION
Application of
the Model QC:
The Model QC may
be connected to either the input or output side of the cathodic protection
circuit. Note: Observe rating limits shown I the specifications. It is
not necessary to observe polarity with output terminals.
WARNING: Do
not connect the interrupter to the DC output side of rectifiers that have
an efficiency transformer. Always interrupt the AC (input) circuit.
The Model QC has
Two Timing Ranges:
With the slide switch
in the X1 position the complete timing cycle is 30 seconds as shown on
the label on top of the unit.
A 15 second complete
cycle is available by placing the slide switch in the + 2 position. Actual
interruption times are shown on the same label.
Relay Contact
Positions:
Relay is "OPEN"
under the following conditions:
1. When the power switch is in the "OFF" position.
2. During the second portion of the operating cycle.
Relay is "CLOSED"
under the following conditions:
1. When the power switch is in the "ON" position and the operate/reset
switch is in the
"RESET" position.
2. During the first portion of the operating cycle.
Interrupter Power
Sources:
-
Uses 12 volt lantern
battery.
-
Interrupter is delivered
with a standard 12 lantern battery; but any external D.C. source between
10 VDC and 15 VDC may be used if desired.
-
See battery information.
3.
PANEL SWITCH & INDICATOR
Switches:
-
Operate/reset switch:
Place in "RESET" position.
-
Slide switch: X1 position.
-
Power ON/OFF switch:
"ON" position, this will close the relay contact.
-
Select timing cycle
desired from the label to coincide with position on the rotary switch.
-
Start timing by switching
OPERATE/RESET toggle to OPERATE. Using an accurate time source, start
timing on exact 30-second times. The Model QC is at least as accurate as
a good watch during its operation.
First portion of timing
cycle is with relay contacts closed. For a shorter operating cycle, place
slide switch in + 2 position.
Two or more Model
QC Current Interrupters may be synchronized by starting on any exact time.
Indicator:
Meter: Provides
a continuous readout of the battery conditions. Battery should be replaced
if pointer falls in "REPLACE" area.
Terminal Lugs:
The terminal lugs
are the rugged, heavy duty copper SLU type, rated at 70 amperes. Versatility
and convenience permit both lug and clamping type connections. Polarity
of terminals is unimportant.
4.
BATTERY INFORMATION
Battery performance
is related to the following factors:
Duration of the
Timing Cycles:
The shorter the
"RELAY CLOSED" time, the longer will be the useful battery life. Typically
up to 40 hours or longer.
Minimum Available
Voltage:
When the battery
voltage falls below nine volts, there may not be enough power available
to operate the relay.
Note: Meter
indications within the "OK" area do not forecast remaining operating hours.
Ambient Temperatures:
At 32 degrees Fahrenheit,
the battery delivers less than 50% of its energy. At 22 degrees Fahrenheit,
the battery may not deliver enough energy to operate the Interrupter. (At
these temperatures, an automotive 12 volt battery can be used). Do not
exceed 15 volts.
Note: Additional
battery information is available from Tinker & Rasor
Installation Procedures:
When replacing the
battery, observe polarity (red = positive, black = negative). Reversed
polarity will cause the meter needle to deflect to the left, off-scale,
indicating an improper connection. The Model QC will not be harmed by such
a connection, but it will not operate.
Use only 12 volt
batteries such as:
-
Burgess #TW2-X or #TW2
-
RCA #VS342
-
Eveready #732
It is useful to carry
an extra battery when working in remote field locations.
5.
MAINTENANCE
The Current Interrupter
does not require maintenance other than occasional battery replacement.
Normal care is use and storage will give many years of trouble-free service.
However, should the Current Interrupter require factory service. . .see
below.
6.
SHIPPING INSTRUCTIONS
All instruments being returned for repair
should be sent PREPAID to either address below:
Tinker & Rasor
417 Agostino Road
P.O. Box 281
San Gabriel, CA 91778
Include with shipment information the nature
of the problem, purchase order, serial number and return delivery address.
Immediate
service is guaranteed! |