Kodak 2467 manual Processor Setup Specifications, Development Time and Transport Speed

Processor Setup Specifications

Concentrate developer - Kodak COM Professional Developer and Replenisher DRC

(Typical continuous-strand deep-tank processor)

Processing	Solutions	Time	Temperature	Working Strength	Replenishment (ml/ft.)
Step	(Dilutions)	(sec.)		Specific Gravity	16 mm	35 mm	105 mm
Developer DRC1	1:3	35	94–95°F(34–35°C)	1.080 to 1.090	1 - 3	3 - 5	7.5 - 10*
Rinse	-	17.5	90–95°F (32–35°C)	-	Flow rate per processor
					manufacturer recommendation
Fixer2	1:5	35	90–95°F(32–35°C)	1.040 to 1.063	0.65	1.35	4
Wash	-	35	90–95°F (32–35°C)	-	Flow rate per processor
					manufacturer recommendation
Dry	-	-	160°F max. (71°C)	-	-	-	-

*Actual replenishment rate is determined by consideration of the rate that achieves a stable D-max with average quantity of film processed.

1Kodak COM Professional Developer and Replenisher DRC

2 Kodak Microfilm Fixer and Replenisher

Development Time and Transport Speed

Development/transport times should be set by timing film speed (splice point) top of rack, roller- to-roller while running in the processor. Transport speeds are based on actual dwell times and photographic aims, and are determined by timing film speed, top of rack, entrance roller to exit roller while running in the processor.

Replenishment Rates

Once development time and transport rates are set to acquire desired photographic aims, replenishment rate settings are determined by multiplying the transport speed by the required replenishment rates for the appropriate film width being used. Replenishment may be reduced if significant quantities of leader are used. For instance, with Kodak COM Professional Developer and Replenisher DRC, practical experience indicates rates as low as 7.5 mL/ft of 105 mm film are adequate in deep tank processors. The use of control charts such

as Kodak Publication A-1631 is recommended for monitoring control.

Transport	Replenishment/	Replenishment
speed x	ft of film	=	rate
(ft/min)	(mL/Lft)		(mL/min*)

*1 mL/min = 1 cc/min

These are starting-point recommendations for deep-tank processors. Shallow-tank and medium-tank processors, or variable operating conditions in all processors, may require replenishment rate adjustments to maintain process activity levels.

Example
Processor:	Allen F-10R
Type of film:	105 mm COM DR
Dwell:	32 seconds
Developer Film Path:	6.5 feet
See table above for:
Replenishment (Dev):	7.5
Replenishment (Fix):	4

Calculated transport speed:

6.5 feet x 60 sec		= 12 ft / min
32 sec	min
Replenishment results:
12 feet x 7.5 mL		= 90 mL / min*
min	feet	(developer replenishment)
12 feet x 4 mL		= 48 mL / min*
min	feet	(fixer replenishment)

3 D-48