TPS Blue M DC256 - Page 11

BLUE M
Blue M - - DC 146 Series Industrial Ovens, Models DC, DCW, DCI, DCC
Page 11
Overtemperature Protection:
A Yokogawa Model UT150L Limit Controller (OTP) is provided for overtemperature protection. The
protection circuitry will shut down the heat control system and the circulation blower when a high heat limit is
detected. Audible and / or visual alarms will be activated.
Circulation Airflow Switches:
A differential air pressure switch is used to monitor the generation of airflow by the circulation blower. A loss
of airflow detected by the switch will result in a shutdown of the oven’s heaters and the activation of an
alarm.
Digital Process Timer - Optional:
An Eagle Signal Model B856-500 Digital Process Timer may be provided to time your heat process cycle.
The Model B856 is a programmable 1/16 DIN timer that features five selectable standard timing operations,
with five selectable time ranges. The timer will start timing once the Timer Start pushbutton is pressed. When
the total preset time has elapsed the timer will remove power from the heater(s). An audible alarm will sound.
A Timer Reset button is provided to reset the system for the next cycle.
24 Hr. / 7 Day Digital Timer – Grasslin Digi20E - Optional:
Note: The Grasslin Model Digi20E is being replaced by the Grasslin Model FM1D.
A Grasslin Model Digi 20E Digital Timer may be provided, which features 24-hour or 7-day programming to
start your process cycle. Up to 20 programs can be stored with up to 10 ON and 10 OFF Events per day.
The timer also features a manual override.
24 Hr. / 7 Day Digital Timer – Grasslin FM1D - Optional:
A Grasslin Model FM1D Digital Timer may be provided, which features 24-hour or 7-day programming to
start your process cycle. Up to 20 programs can be stored with up to 10 ON and 10 OFF Events per day.
The timer also features a manual override.
Chart Recorder - Optional:
A chart recorder may be provided to record temperature versus time. Recorders are normally a circular type
with optional digital displays that indicate the actual temperature being recorded. A Type J thermocouple is
used for temperature measurement.