1.INTRODUCTION

This manual containsoperating, maintenance and storage instructions for Tinker & Rasor’sModel SC-4 AgAg/CI Reference Electrode "Land" use.
 

This Kit Includes:

• 1  Ag/CI Elementwith end cap
• 1  Ceramic TipAssembly (land)
• 1  Tube Body withholes (sea)
• 1  Tube Body w/oholes (land)
• 1  End Plug (storage)
• 2  Brass Weights(sea)
• 1  4 oz. Solution(land & storage)
• 1  Waterproof Adapterw/lead (sea)
• 2  InstructionManuals (land & sea)
• 1  Carrying Casew/ inserts 

Accessories:

Tinker & RasorModels

• CPV-2Voltmeter Analog
• CPV-4Voltmeter Digital

Requirements:

• 1  Voltmeter- any high input resistance 20 Megaohm or greater - see "Accessories"

• 1  Test Lead-18 Ga. stranded wire (8 ft supplied, longer test leads available upon 

                        request.) 
 
• 1  Electrolyte - 4 oz. "Ocean Water" supplied. Potassium Chloride 35:1 mix is okay for

                         storage. see "Maintenance"

2.PREPARATION & ASSEMBLY

• 1  Clean Ag/CIelement per instruction under "Maintenance" section. 
• 1  Screw end capwith Ag/CI into solid tube (part #118-061) and tighten. 
• 1  Fill tube with"Ocean Water".  (part #049-016)
• 1  Screw ceramictip assembly into tube and tighten - check "O" rings for leaks. 
• 1  Attach 18 Ga.test lead to top of electrode using knurled nut supplied. 
• 1  Attach testlead to voltmeter. (Any quality high resistance meter - 20 megaohm or 

   greater such as Tinker & Rasor Model CPV-4 Digital Voltmeter.)

Note:  A. Ceramic tip assembly should soak in electrolyte (Ocean Water) untilthoroughly
                saturated. 

           B. Ag/CI element must be cleaned, then soaked in electrolyte at least 15minutes 
                prior to first use.
 
 

3.OPERATIONS

• 1  Press the electrodes’ceramic tip into the soil. 
• 1  Submerge thetip or the entire electrode into electrolyte. 
• 1  Place a spongesoaked in electrolyte under the ceramic tip for dry soil conditions. 
• 1  The ceramictip assembly must be soaked in electrolyte until thoroughly saturated. 

Before Use:

1. The Ag/CI elementmust be cleaned in distilled water or mild detergent and rinsed in 
    distilled water prior to use. 

2. Do not touch Ag/CIelement after cleaning.

3. The Ag/CI elementshould soak in electrolyte for at least 15 minutes before use to 
    stabilize readings.
 

After Use:

1.  To ensureproper readings we recommend the Ag/CI element and the ceramic tip 
    assembly be kept moist during storage. A solid body tube and protectivecover are 
    enclosed for this period as well as for use in soil readings. 

2.  For longterm storage disassemble or for use after element and ceramic tip havebeen 
    allowed to dry follow instructions above Before Use".
 
 

5.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!