172-65627M-09 (SQ10) 18 Oct 2021
21
No.
Function
Description
4
Low Temp
Alarm Delay
Sets the alarm delay time for the low temperature alarm.
・
When the water temperature falls below the value set in No. 3
(Low Temp.) for a longer time period than set in No. 4, an low
temperature will be triggered. (When the low temperature alarm
value is set to 60
C and alarm delay is set to 10 seconds, an
alarm will be triggered if the water temperature falls below 60
C
for more than 10 seconds.)
・
When the temperature exceeds the low temperature alarm
value within the set alarm delay time, the low temperature alarm
will not be triggered.
・
Factory setting: 10 seconds
NOTE: Low temperature alarms will not be triggered for
approximately the first 2 minutes after starting initial
steam supply (at commissioning).
5
PID Settings
Sets the PID value (a constant to determine the operation
sensitivity of the control valve).
・
The value is adjusted at the time of factory inspection according
to application, flow rate, and temperature rise range.
・
When "shortened start-up time" or "overshoot prevention" are
required, make sure to confirm site safety before changing the
PID constant.
Unnecessarily changing the PID value may result in being
unable to obtain the set water temperature or in some cases
overheating.
For adjusting the PID constant (value), contact TLV.
6
Display Valve
Opening Button
Displays the valve opening information on the main screen.
・
Display state can be changed by touching the square button.
・
: Displayed
・
: Not displayed
7
Set Temp.
Remote Input
Button
Switches between the main screen and the signal input to
set the temperature.
・
Set temperature can be adjusted via either setting on the main
screen of the touch panel, or by a 4 to 20 mA signal from an
external input.
・
: Via remote signal input
NOTE: When there is no signal input, the set temperature
becomes 0
C.
・
: Via the main screen (touch panel)
・
Do not switch the input mode to set temperature while the unit is
in operation.
8
Date/Time
Adjusts the time displayed on the touch panel.
・
The time displayed at the bottom right on the main screen can
be adjusted.
・
Time displayed in the touch panel is required to record an alarm
occurring time and recovery time.
・
Factory setting: Date/Time is set according to Japan Standard
Time.
9
(Schedule
Setting screen)
Button
Displays the schedule settings screen (weekly timer).
