Despatch LBB2-xxA/B-2 - Manual (Page 38)

O PERATION LBB Series Oven Owner’s Manual
38 Version 18
Set 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 not
necessary 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 enable
and . The High Limit instrument will automatically exit Setup mode if no keys are pressed
for 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 more
information.
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 Setup
mode if no keys are pressed for about two (2) minutes.
5.4.7. High Limit Instrument Setup Parameters
Table 6 explains the High Limit instrument setup parameters.
When changing between centigrade and Fahrenheit, the setup
parameters Filt, o1.Hy, HSP.L and HSP.H settings convert
automatically.
Table 6. High Limit instrument Setup Parameters.
Code Name Description Settings
inPt Input type
Select thermocouple type. LBB Series ovens use type
J thermocouples
J_tC
unit Process unit.
Select between °C and °F for reading process
temperature °
C (or
°
F)
rESo
Display
resolution. Select location of decimal point on process-related
parameters
No.dP
SHif
PV shift value
(offset). Moves the display temperature to the oven
temperature
0
Filt PV filter.
If the process value is unstable to read, increasing this
value steadies the input signal.
0
out1
Output 1
function. Function of the output. Must be set to Hi. for High Limit
control.
Hi.
o1.Hy
Output 1
hysteresis
value.
Amount of degrees the temperature must be below the
setpoint temperature before the High Limit can be reset 2.0