Extech Instruments VFL Series User Manual

VFL Series User Manual v2.0 10/20
26
11. Programming Menu 4 (Option)
• From any display, long press the SET and SHIFT (<) keys for five (5) seconds to enter the
Menu 2-3-4 ‘Level’ selection screen. Use the up/down arrows to select Menu 4 (or Menu
2 or 3).
• Use the SET key to scroll through the menu.
• Use the SHIFT (<) key to select a digit for editing and then use the up/down arrows to
change the setting. Press SET when done to continue scrolling.
• To change between menu levels, scroll to the ‘Level’ screen and use the up/down arrows
to select a menu.
• Press the SET key and the up-arrow key together to exit the Menu 2-3-4 menu loop.
Display
Definition
Description
Range
Default
Options menu
Customize the controller options.
Input type
Select thermocouple, RTD, or Line input (analog). See Input Type
settings section below this table.
Unit of
measure
Set the temperature or
engineering units (analog inputs).
o
C,
o
F, or EnG
o
C
Decimal setup
0000, 000.0
00.00 (linear inputs only)
0.000 (linear inputs only)
See description
0000
Control action
Output 1 control action. Set to ‘0’
for cooling (direct) action or ‘1’ for
heating (reverse) action.
Secondary output is automatically
configured for cooling.
REV: Reverse
(heat)
DIR: Direct
(cool)
REV
Low limit
Low limit of the input range. See
the Specifications for input ranges.
Also, see dedicated paragraph on
Low/High Limits below.
Full range
0
High limit
High limit of the input range.
Full range
1000
Filter
Software filter. Used to control the
display update rate. Increase the
setting to slow the display rate.
00 ~ 99.9
10.0
Alarm Timer
Set the Alarm ON/OFF Timer
format.
MM:SS/HH:MM
MM:SS
Alarm 1
function
Alarm and Timer Functions. Select
a function from the Alarm/Timer
function list (Section 11.3).
See Alarm
function section
Differential
high alarm
Alarm 1 mode
Select a specialty mode from the
Alarm mode list (Section 11.3).
See Alarm mode
section
None

Extech Instruments VFL Series Specifications

General

Brand	Extech Instruments
Model	VFL Series
Category	Controller
Language	English