Inspection of theinstrument should be performed upon receipt. If damage has occurred inshipment, file a claim with the carrier immediately. If it is necessaryto contact your supplier or Tinker & Rasor, be sure to include allinformation such as serial number, purchase order number and invoice number.
 
 

2.GENERAL INFORMATION

A. Applicationof the CI-50

    The CI-50 may be connected to either the input or output side of the cathodicprotection 
    circuit. 

   Note:Observe rating limits shown in the specifications. It is not necessaryto observe 
   polaritywith output terminals.

   WARNING:Do not connect the interrupter to the DC output side of rectifiers thathave an
   efficiencytransformer. Always interrupt the AC (input) circuit.
 

B. Relay contactPositions

    Relay is "OPEN" under the following conditions:

    1. When the "ON/OFF" power switch is in the "OFF" position.

    2. When the power switch is in the "ON" position and instrument is withinthe cycle time 
        set on the "RELAY OFF" control. Relay is "CLOSED" under the following conditions:

                        a. When "ON/OFF" power switch is in the "ON" position.
                        b. When "ON/OFF" power switch is in the "ON" position and the "START 
                            TIMING" button has not been pressed.
 

C. InterrupterPower Sources

    1. Uses 12 volt lantern battery only.

    2. interrupter is delivered with a standard 12 volt lantern battery; butany external D.C. 
        source between 10 VDC and 15 VDC may be used if desired. (see battery Information)
 
 

3.PANEL CONTROLS & INDICATOR

A. Controls

    1. Power "ON/OFF" Switch - Move the toggle switch up to its "ON" position.This will 
        close the relay contacts. Note: This switch causes battery power to beapplied to the
        Interrupter’s internal electronics. Select your timing cycle (refer tothe chart on bottom of 
        Interrupter). All operating conditions can be adjusted at this time.

    2. "RELAY ON" Control - This controls the impress current "ON" period.(Refer to chart on 
         bottom of Interrupter).

    3. "RELAY OFF" Control - This controls the impressed current "OFF" period.(Refer to 
         chart on bottom of Interrupter).

    4. "START TIMING" Control - Depress the "start timing button" to beginthe interruption 
         cycle. The cycle begins with a "RELAY OFF" condition. Allow one minutefrom start of 
         first timing cycle for stabilization.
 

B. Indicator

    Meter: Provides a continuous readout of the battery condition. Batteryshould be replaced 
    if pointer falls in "replace" area.

C. Terminal Lugs

    The terminal lugs are the rugged, heavy duty copper SLU type, rated at70 amperes. 
    Versatility and convenience permit both lug and clamping type connections.Polarity of 
    terminals is unimportant.
 
 

4.BATTERY INFORMATION

Battery performanceis related to the following factors:

A. Duration ofthe Timing Cycles

    The shorter the overall "RELAY ON" times the longer will be the usefulbattery life, up to
    30 hours.

B. Minimum AvailableVoltage

    When the battery voltage falls below 9 volts, there may not be enough poweravailable to 
    operate the relay. 

   Note:Meter indications within the "white" area do not forecast remaining operatinghours.

C. 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). Contact Tinker& Rasor for 
    additional battery information. 

D. InstallationProcedures

    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 CI-50 will not be harmed by such a connection, but it willnot operate.

    Use only 12 volt batteries:

• Burgess -TW2-X or TW2
• RCA - VS342
• Eveready - 732
• NEDA - 92

5.MAINTENANCE

The Current Interrupterdoes not require maintenance other than occasional battery replacement.Normal care in use and storage will give many years of trouble-free service.However, should your CI-50 require factory service. . .see below
 
 

9.SHIPPING INSTRUCTIONS 

All instruments being returned for repair should be sent PREPAID to either address below: 

Ship Via Courrier (UPS, FedEx, DHL, etc)

Tinker & Rasor
ATTN: Repairs
791 S. Waterman Ave.
San Bernardino, CA 92408

Ship Via US Postal Mail

Tinker & Rasor
ATTN: Repairs
PO BOX 6890
San Bernardino, CA 92412-6890

Include with shipment information the nature of the problem, purchase order, serial number
and return delivery address, phone and fax numbers. Immediate service is guaranteed!