Programming Menu Levels - Extech Instruments 48VTR User Manual

Programming Menu Levels

The 48VTR has four (4) Menu Levels used for programming. The Menu Levels are shown
in the Table below. Each parameter is described in detail in the following sections.
1st Menu Level 2nd Menu Level
RAmp (0.0) Pb (0)
SPoF (0.0) Ti (240)
A1SP or timE Td (40)
Note: In this Table, the default values are
shown in parenthesis. Parameters with an
asterisk * vary depending on the input type of
the controller (TC, RTD, or Analog input)
System Reset
To revert all of the parameters to their original
factory default settings, press and hold the UP and
DOWN arrow keys simultaneously while turning the
controller ON. Release the keys after the self-test
(when the display shows '8888').
First Programming Menu Level
• Press the SCROLL key to enter the first level
• Then use the SCROLL key to move through the parameter list
• Use the ARROW keys to change a setting
• To return to normal operation at any time, press the RETURN key once
st
• The 1
Menu Level parameters are shown below:
rAmp Programmable rate of rise limit for PV. The ramp restricts the rate at which the
measured variable (PV) changes (Range: 0.0 to 100.0 units per minute). For more
details refer to the 'Ramp to Setpoint' Section later in this manual.
SPoF Setpoint Offset (Manual Reset). The setpoint can be offset by 0.0 to 100.0% of its
displayed value. For example, with a 10% setting, the controller's setpoint will be
10% higher than its displayed value. Therefore, if the Setpoint is displayed as 50,
the actual Setpoint would be 55 (10% of 50 is 5; 50 + 5 = 55).
A1SP Alarm Setpoint value. (First, set the Alarm type in the 'A1Fu' parameter; refer to
Appendix 'A' for Alarm functions). Allowable setting range is limited by the Low
and High Limit settings (3
'A1SP', press the SCROLL and DOWN keys simultaneously for 4 seconds. To
unlock, press SCROLL & UP simultaneously for 4 seconds.
timE Programmable duration for the Event/Soak Alarm Timers. The range is 0 to 9999
minutes. Refer to the 'Event/Soak Timers' Section and Appendix 'A' for details.
Note: The Parameter Lock setting (P-L) can lock out certain levels and parameters. Some of the
above parameters may not appear depending on the P-L setting
Menu Levels and Parameters
3rd Menu Level
REmo (0)
P-L (4)
A1FU (2)
A1HY (0.1)
Act (1)
Unit (*)
Dp (*)
Ct (15)
HYST (0.1)
EroP (2)
Addr (0)
PvoF (0.0)
TYPe (*)
LoLt (0.0)
HiLt (500.0)
rd
Menu Level) and the input type selected. To lock out
15 Model 48VTR - Version 5.0 – January 2006
4th Menu Level
LoCA (0.0)
HiCA 1000
TunE (1)