Despatch LBB 1-23 Owner's Manual

Contents

Despatch LBB 1-23 Owner's Manual Manual pdf 38 page image

OPERATION LBB Series Oven Owner’s Manual38 Version 20Set High Limit instrument parameters using the Operating and Set-up modes (Section 5.4.2.1).See section 5.4.4. to calibrate High Limit, only use SHif parameter. In most applications, it is notnecessary to alter the oven settings. The following instructions describe how to access, view and,if desired, change the parameters.If the on the High Limit instrument is lit, press and hold for four (4) seconds to enableand . The High Limit instrument will automatically exit Setup mode if no keys are pressedfor about two (2) minutes.1. Press and hold for four (4) seconds to enter Setup mode.2. Press until desired parameter displays. See the Setup Parameter Table for moreinformation.a. The display will alternate between the parameter name and value.b. Use or to move to the desired setting.c. Press to the value and advance to the next parameter.3. To leave setup parameters press . The High Limit instrument automatically exits Setupmode if no keys are pressed for about two (2) minutes.5.4.7. High Limit Instrument Setup ParametersTable 6 explains the High Limit instrument setup parameters. When changing between centigrade and Fahrenheit, the setupparameters Filt, o1.Hy, HSP.L and HSP.H settings convertautomatically.Table 6. High Limit instrument Setup Parameters.Code Name Description SettingsinPt Input type Select thermocouple type. LBB Series ovens use typeJ thermocouples J_tCunit Process unit. Select between °C and °F for reading processtemperature C (or F)rESo Displayresolution.Select location of decimal point on process-relatedparameters No.dPSHif PV shift value(offset).Moves the display temperature to the oventemperature 0Filt PV filter. If the process value is unstable to read, increasing thisvalue steadies the input signal. 0out1 Output 1function.Function of the output. Must be set to Hi. for High Limitcontrol. Hi.o1.HyOutput 1hysteresisvalue.Amount of degrees the temperature must be below thesetpoint temperature before the High Limit can be reset 2.0