Installation and Operation of: Product Name
Duke Manufacturing Co.
2305 N. Broadway
St. Louis, MO 63102
Phone: 314-231-1130
Toll Free: 1-800-735-3853
Fax: 314-231-5074 www.dukemfg.com
TSC OVEN: HUMIDITY FIELD CALIBRATION – NO TOOLS
Overview:
This procedure is to be used to calibrate the TSC proofer humidity reading if the factory calibration labeling
is unavailable for the humidity sensor and measurement equipment is not available.
Process:
¾Begin the process with the unit setup & ready to operate and
at room temperature (65ºF to 80ºF)
¾Turn ON the TSC proofer section and wait for the proofer
temperature to reach a minimum of 95ºF.
* Proofer temperature is displayed on a proofer recipe screen
until set point is reached.
* Proofer temperature can be monitored on the 1790 code
proofer temperature calibration screen, but DO NOT adjust
temperature calibration settings.
¾With the proofer temperature at or above 95ºF, go to the
humidity calibration screen. Press and hold “OVEN”button on
main screen to enter (1790 code), wait for the proofer door
glass to fog, wait for water droplets to form on the fogged
glass, & wait for water droplets to begin running down the
proofer door glass.
* The proofer door glass will be approximately 70%RH with
the door glass fogged.
* Water droplets will begin to form on the fogged proofer
door glass at approximately 75%RH.
* Water droplets will begin running down the proofer door
glass at approximately 80%RH.
¾Adjust the TSC humidity calibration (1790 code) to 70%RH at
glass fog, 75%RH as droplets form, and 80%RH as droplets run
down the proofer door glass.
¾The ideal 75%RH humidity calibration point is with the
proofer temperature at 105 ºF and water droplets just starting
to run down the inside surface of the proofer door glass.
PROOFER
DOOR
GLASS
Fogged= 70%RH @105⁰F
Droplets= 75%RH @105⁰F
Droplets running=
80%RH @105⁰F
