1. HOLIDAY DETECTOR FUNCTION

The Tinker & Rasor Models AP and AP/W Holiday Detectors are portable, all purpose
inspection instruments. They are adaptable for use on both large and small diameter pipe as well as flat surfaces when such surfaces are coated with a high electrical resistant material and the surface beneath the coating is electrically conductive. The Models AP and AP/W Holiday Detectors work equally well on damp surfaces; they are especially desirable when humid conditions exist or when it has recently rained. 
 
 

2. UNPACKING & INSPECTION

A. Upon opening the carrying case, notice where the various components are located; 
     repack them in the same manner when not in use. Then remove all components from the 
     carrying case. 

B. Inspection should be performed upon receipt. If damage has occurred in shipment, file 
     a claim with the carrier immediately. Check components (against packing slip) to be sure 
     nothing is missing. 

C. If it is necessary to contact your supplier or Tinker & Rasor concerning damaged or 
     missing items, be sure to include all information such as serial number, purchase order
     number and invoice number. 
 
 

3. CHECK-OUT INSTRUCTIONS

A. Assure that Holiday Detector "ON/OFF" switch is in the "OFF" position. 

B. Using the Battery Tester, insert test plug (on Battery Tester) into Holiday Detector "charge 
     plug" receptacle. Observe LED light , if "ON" battery has sufficient charge to operate the 
     detector. The battery tester is to be used only to test battery in case holiday detector does
     not operate properly. It is not designed to test the true condition nor the amount of charge 
     left in the battery. 
 

FOR MODEL AP HOLIDAY DETECTOR (ONLY)

A. Turn output voltage selection switch (on Detector) to desired voltage. (Voltages are listed 
     on the inside and outside of Detector back cover). 

B. Insert leather belt into slide loops on back of Detector if belt mounted method is to be 
     used. 

C. Uncoil high voltage cable and plug the long connector (3" collar) into one end of adapter 
     and screw wand handle onto other end of adapter; plug the short connector (1-1/2" collar) 
     into the Detector high voltage port. 

D. Assemble the desired electrode to the wand assembly and apply to the pipe, tank, or 
     other structure to be inspected. An inspection electrode should always make intimate 
     contact with the surface to be inspected. 

E. Turn "ON/OFF" switch to "ON" position. (Note: When the switch is "ON", a buzzing should 
     may be heard coming from the Detector). 
 
 

FOR MODEL AP/W HOLIDAY DETECTOR (ONLY)

A. Turn output voltage selection switch (on Detector) to desired voltage. Voltages are listed 
     on the individual powerpak in ascending order, left to right. 

B. Insert leather belt into slide loops on back of Detector if belt mounted method is used. 

C. Uncoil ground wire and plug connector end into Detector port marked "ground". (The 
     ground wire will trail on bare earth). 

D. Attach wand to threaded, male end of powerpak. Insert powerpak cable (male connector)
     into female connector of powerpak. Insert other end of powerpak cable into
     "HighVoltage" port on Detector.

Note: Never turn the AP/W on without plugging in the "HIGH VOLTAGE" cable or unplug
the cable while the unit is in the on position! Doing so will damage internal components.

E. Assemble the desired electrode to the wand assembly and apply to the pipe, tank, or other
     structure to be inspected. An inspection electrode should always make intimate contact 
     with the surface to be inspected. 

F. Turn "ON/OFF" switch on "ON" position. (Note: When the switch is "ON", a buzzing sound
     may be heard coming from the Detector). 

G. The AP/W is now ready to operate. 
 
 

4. OPERATING METHODS

A. Grounding

     1. A good ground system will always give the best and most reliable inspection. 
         The structure to be inspected must be grounded to earth at some point. 

     2. If individual joints of pipe are to be inspected which are not electrically connected, 
         each joint must be grounded. 
 

B. Inspection Speed

     Speed of the electrode travel over the inspection surface should be 
     moderate. Moving the electrode at an excessive speed can result in a faulty inspection. 
 

C. Operating Checks

     1. Occasional checks of the Detector can be made if no holidays are being found. Move 
          the inspection electrode to the coating's edge (where the bare conductive surface is); 
          note that Spark and signal should both occur. 

     2. If the signal does not sound when the spark jumps, the "ground return" resistance is 
          exceptionally high. (Example: very dry soil or very large diameter pipe). To improve 
          the "ground" make a direct connection between the structure under inspection and the 
          Detector's ground wire. 
 
 

5. ABOUT YOUR HOLIDAY DETECTOR

A. Sensitivity Switch

     The sensitivity of the Holiday Detector may be adjusted by turning the 4-position switch; 
     access the switch with a screwdriver through the porthole located on the back panel in the 
     belt recess. (See paragraph 6C). 
 

B. Output Voltages

     Output voltages are measured direct-connected, "open-circuit" using Tinker & Rasor 
     Model "PRM" Peak Reading Voltmeter calibrated to the Jennings Model J- 1005 
     Voltmeter 0 to 100 kilovolts. 

CAUTION: Before disassembly of components, turn the "ON/OFF" switch to "OFF" position.
 
 

6. INSTRUMENT SERVICING

A. Cleaning

     Keep instrument clean and dry. Clean instrument case with soft cloth dampened with 
     kerosene, then wipe dry. Do not use solvents: (lacquer thinner, Methyl-Ethyl-Ketone, etc.) 
 

B. Voltage Output Checks

     1. Low output voltage: 

          a. Check position of voltage selector switch. 
          b. Check battery condition using Battery Tester. (See later comments on Battery). 
          c. Check for "parted" conductor in wand and ground wire(s). 
 

     2. No Output Voltage: 

          a. Check battery condition using Battery Tester. (See later comments on Battery). 
          b. Check fuse located on printed circuit board inside instrument. If fuse is blown, look 
               for shorted wire in primary circuit. Replace fuse with 2.0 amp fuse, type 3AG. 
          c. Check battery leads and the power switch for open circuit. Proper input current is 
              .7 to .9 amperes. 
 

C. False Signal Indication Check

     1. Adjust 4-position rotary signal sensitivity switch through porthole provided on back panel
          in the belt recess.

          a. Electrical "load" conditions vary greatly through pipe sizes, coating thickness and 
              climatic conditions. The counter-clockwise position is the most "signal sensitive". 
              Coated concrete pipes would use this position. In other cases, it is best to start out 
              using position 
 

     2. or the next position in

          a. clockwise direction.
          b. check for "parted" conductor in wand and ground wire. 
 

D. No signal with Spark Discharge 

     1. Check position of signal sensitivity switch. 
     2. Read item 3 --C under "Instrument Servicing".
     3. Refer to paragraph on "Operating Checks". 
 
 

7. BATTERY CHARGING - CAUTION

Place Holiday Detector "ON/OFF" Switch in "OFF" position while charging battery. 

A. Use only the Battery Charger provided (Part #031-005). 

B. Recharge battery in the instrument. Ventilation holes in front and back of instrument case 
     should be kept open. 

C. Plug charger into polarized receptacle of instrument. 

Note: Battery cannot be tested or charged if instrument power switch is in the "ON" position.

D. Plug A.C. power cord into any 120 volt 60 Hz outlet.. 

E. Charge battery for 14 hours. 

F. Charge battery at temperatures above 45 degrees for best results. 

G. If charger pilot light "out": (indicates Charger is not operating). 

     1. Check position of power switch. 
     2. Check for "shorted" battery cell(s). 
 

H. Disconnect charger from battery and A.C. outlet when not in use. 
 
 

8. BATTERY MAINTENANCE

A. When instrument fails to operate in normal manner, battery maybe fully discharged. 
     Recharging before this happens can extend the useful life of the battery considerably. 

B. Store at normal room temperature when not in use. 

C. If battery has not been used for six month or more, discharge completely and recharge for 
     14 hours minimum. 

Note: If Holiday Detector fails to operate in normal manor, the first step is to test the battery condition. 
 
 

9. 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