OPERATION LBB Series Oven Owner’s Manual
30 Version 20
• For sample heating, close vent when no ventilation is required
5.3. Operating Procedure—Standard Control Instrument
See Protocol 3 Controller Owner's Manual for operating procedures for optional Protocol
3 control instrument.
Warning!
Do not use flammable solvent or other flammable material in this
oven. Do not process closed containers of any substance or
liquid in this oven because they may explode under heat.
For fastest oven heat-up time, close the exhaust vent. After the
desired temperature is reached, adjust the vent as needed.
Caution, damper may be hot.
5.3.1. Start Oven
1. Turn POWER ON (Figure 11). The circulating fan will start.
2. Set exhaust vent to desired opening by adjusting the damper at the rear of the oven (Figure
12).
a. Adjust the vent for maximum performance at various operating temperatures.
3. Enter desired setpoint on the High Limit instrument.
a. Set the High Limit instrument to a temperature 10° to 14°C higher than the desired
setpoint or to a temperature that should not be exceeded in the process.
b. If the LOCK on the High Limit instrument is lit, press and hold the RESET for four (4)
seconds to enable ▲ and ▼.
c. Press . HSP1 will light.
d. Use ▲ and ▼ to set the High Limit temperature.
e. Press RESET (or ) once to enter the value and return to the process variable PV
mode.
4. Enter setpoint on the Control instrument.
a. Press until the SP lights.
b. Use ▲ and ▼ to set the operating temperature.
If the High Limit instrument is exceeded, the heater shuts
down. Reset the High Limit instrument by pushing RESET on
the High Limit instrument.
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