Mini-Mite™ Tube Furnace
Operation - UT150 Controller
5
Parameter
Code
Factory
Set
Value
Description
Operating parameters (access by holding the SETIENT key)
A1
1125.0
Alarm setpoint (
°
C; 2057
°
F)
CtL
Pid
Control mode
At
oFF
Auto tuning
p
20.0
Proportional band (°C; °F=36.0)
I
120
Integral time
d
30
Derivative time
Ct
1
Heat cycle time
FL
2
Sensor filter
bS
0.0
PV bias (offset)
LoC
0
Key lock
Setup parameters (access by setting LoC=-1)
In
1
Input type (
K
thermocouple in °C; °F=31)
SPH
1100.0
High setpoint limit °
c;
°F=2012
SPL
0.0
Low setpoint limit °
c;
°F=32
Upr
oFF
Up ramp rate (degrees C or F
I
minute)
dnr
oF
F
Down ramp rate (degrees C or F
I
minute)
AL1
9
Alarm 1 type
AL2
oFF
Alarm 2type
HY1
0.5
Alarm 1 hysteresis (°F=1)
HY2
0.0
Alarm 2 hysteresis
sc
on
Super Control
dr
0
Direct/reverse action
Button
Function
Pressing and holding the SET/ENT for three seconds
advances the display to the Operation Parameters
Menu.
While in the Operation Parameters Menu, use
SET/ENTto move from one parameter to the next, and
to register changes you have made in setpoint and
parameter values.
Holding SET/ENT for three seconds exits either the
Operation or Setup Parameters menu.
Use the Up Arrow button to increase the temperature
setpoint display and to change parameter values in the
Operation and Setup Parameter menus. Whenever
you change the value of a setpoint or parameter, the
decimal point flashes to remind you to register the
changed value with SET/ENT.
Use the Down Arrow button to decrease the
temperature setpoint display and to change parameter
values in the Operation and Setup Parameter menus.
Whenever you change the value of a setpoint or
parameter, the decimal point flashes to remind you to
register the changed value with SET/ENT.
Table 1. UT150 Parameter Functions
Table 2. Pushbutton Keypad
6.2 Setting the Temperature
To set the temperature to the desired setpoint, complete
the following steps:
1. Press
or
until the desired setpoint is indicated on
the bottom line of the display.
2. Press
SET/ENT
to register the new setpoint.
6.3 Setting the Overtemperature Protection (OTP)
Temperature
The high limit alarm system with the temperature controller
disables the heater output. To set the alarm on the
temperature controller (typically 5°C above the desired main
temperature setpoint), complete the following steps:
1. Press and hold
SET/ENT
for 3 seconds, until
A1
is displayed
on the upper line.
2. Press
or
until the desired overtemperature limit
setpoint shows on the bottom line of the display.
3. Press
SET/ENT
to register the new overtemperature alarm
setpoint.
4. Press and hold
SET/ENT
for 3 seconds to return to the normal
display.
6.4 Changing Between Celsius and Fahrenheit
The controller is factory-set to operate with degrees Celsius.
To change the display modes and parameter settings to the
Fahrenheit scale, you will need to change the Input Type
parameter In and also the values of various scale-dependent
parameters. If during this procedure the buttons are inactive for
more than two minutes, the controller will return to the
standard display.
To change from Celsius to Fahrenheit:
1. With the controller operating, access the Operating
Parameters menu by pressing and holding
SET/ENT
for 3
seconds.
2. Press and release
SET/ENT
repeatedly until the upper
display reads LoC.
3. Press
until the displayed value of LoC is -1; then press
SET/ENT
to access the Setup Parameters menu (refer to
Table 1 on page 5).
4. The first setup parameter displayed is Input Type (In). Press
to change its value from 1 to 31. After making this
adjustment (and all following parameter adjustments) be sure
to press and release
SET/ENT
again to register the change.
5. Press and release
SET/ENT
to advance to the SPH
parameter and change its value to 2012.
6. Press and release
SET/ENT
to advance to the SPL
parameter and change its value to 32.
7. Press and release
SET/ENT
to advance to the HYl
parameter and change its value to 1.
8. Press and hold
SET/ENT
for 3 seconds to exit the Setup
Parameters Menu.
9. Press and hold
SET/ENT
for 3 seconds to enter the
Operating Parameters Menu and display the Al parameter.
tmU
1
Ramp Time Units, ° per minute [0,° per hour
]
Содержание Mini-Mite TF550 A
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