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Extech Instruments 48VFL User Manual
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VFL Seri
es
User Manual
v2
.0
10
/20
21
P
ro
gramming Menu
Le
vel
Overview
M
enu
1
(SP)
USER
Menu 2 (Soft)
Menu
3
(PID)
Menu (Option)
M
en
u 5 (Line
ar)
USER LEVEL
SOFT START LEVEL
PID LEVEL
OP
TION LEVEL
LINEAR INPUT
Menu Note
s:
1.
Wh
en
the secondary output (cooling) is not selected,
C
Pb
,
C
ti
,
Ctd
,
HY
S2
, and
db
parameters do not appear in the menu.
2.
When
Pb
is not set to 0.0,
HY
S1
does not appear in the menu.
3.
Wh
en
CP
b
is not set to 0.0,
HYS2
do
es not appear in t
he menu
.
4.
When
Pb
is set to 0.0
,
ti
and
td
do not app
ear
in the me
nu
.
5.
W
hen
CPb
is set to 0.0,
Cti
and
Ctd
do not
ap
pear in t
he
menu.
20
22
Table of Contents
Default Chapter
2
Table of Contents
2
1 Introduction
4
2 Safety
5
3 Panel Cut-Out, Dimensions, and Mounting
6
48VFL Mounting
6
4 Wiring
7
Important Safety Wiring Considerations
7
AC Power Wiring
7
Thermocouple Input
7
Analog Input (4-20Ma) Optional
7
RTD Input (2, 3, or 4 Wire)
8
Control Relay Wiring
8
Pulsed DC Trigger Output Wiring
8
Analog Output Wiring
9
Alarm Relay Output
9
5 Product Description
10
96VFL Front Panel
10
48VFL Front Panel
11
Keypad Descriptions
11
Display Descriptions
12
6 Process Control
14
Connect the Inputs
14
Connect the Outputs
14
Program the Controller
14
Primary Relay Output Control
14
Secondary (Optional) Relay Output Control
14
Pulsed DC Trigger Option
14
Analog Output Option
15
ON-OFF Control
15
PID Control
15
PID 'Time Proportioning' Control
16
Proportional Control Considerations
17
Dead-Band Considerations
19
7 Programming Menu Basics
20
8 Programming Menu 1 (User Level)
22
9 Programming Menu 2 (Soft Start Level)
23
Soft-Start Utility Overview
23
Ramp-To-Setpoint (RAMP) Overview
23
10 Programming Menu 3 (PID)
24
11 Programming Menu 4 (Option)
26
Input Type Selection
27
Low and High Limit Considerations
27
Alarm Function and Alarm Modes Lists
28
ON-OFF Alarm Timers
29
RS-485 Interface Option
30
12 Programming Menu 5 (Linear Input)
30
13 Automatic Tuning
31
14 Automatic and Manual Control Modes
31
15 Appendix A: Troubleshooting
32
16 Appendix B: Heating Process Example
33
17 Specifications
34
General Specifications
34
Thermocouple Input Specifications
34
RTD Input Specifications
35
Analog (Linear) Input Specifications
35
Relay and DC Trigger Control Output Specifications
35
ALARM Output Specifications
36
ANALOG Output Specifications
36
18 Two-Year Warranty
36
19 Calibration and Repair Services
36
20 Customer Support
37
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Extech Instruments 48VFL Specifications
General
Brand
Extech Instruments
Model
48VFL
Category
Controller
Language
English
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