MT-516RVTi plus
TEMPERATURE CONTROLLER
WITH CYCLICAL TIMER AND VOLTAGE MONITOR
Ver. 06
MT516R
VTI06-02T
-1081
1
UL-Underwriters Laboratories
1. DESCRIPTION
2. APPLICATION
The
integrates a heating or cooling thermostat with a cyclical timer and a
TrueRMS voltage monitor. Through the F13 and F14 functions is possible to determine the voltage limits
that the thermostat output can be active, this way protecting the compressor. Using True RMS*
technology the controller is capable of measuring the voltages in a variety of different situations in the
electrical grid, thus providing greater precision in the protection of the components of the application.
Product complies with UL Inc. (United States and Canada).
• Milk cooling tanks
• Chambers and counters
• Heat pumps
MT-516RVTi plus
*True RMS: Is the real and effective voltage value which also includes the voltage generated by high frequency
noise in the distributing network (harmonic distortion). This is the actual voltage applied to the connected load
(example: electric motor, compressor). This method allows the precise voltage measurement for any type of
wave form. Other measurement methods give correct value of applied voltage only for perfect sine wave forms.
3. TECHNICAL SPECIFICATION
4. CONFIGURATIONS
4.1 - Control temperature adjust (SETPOINT)
- Electric power supply:
- Control temperature:
- Maximum current :
- Dimensions:
- Operating temperature:
- Operating humidity:
115 or 230Vac ±10% (50/60Hz)
-50 to 105°C (decimal resolution between - 10 and 100 ºC)
-58 to 221 ºF
8(3)A/ 250Vac 1/4HP (each output)
71 x 28 x 71mm
0 to 50°C / 32 to 122°F
10 to 90% RH (without condensation)
- Press
for two seconds until
appears on the display.
The actual control temperature will appear.
-Use the
and
keys to change the value and press
when ready.
SET
SET
Description
Fun
Access code: 123 (one hundred and twenty three)
Temperature indication offset
Thermostat operating mode
Minimum setpoint allowed for the end user
Maximum setpoint allowed for the end user
Control temperature differential (hysteresis)
Delay for turning the compressor on
Cyclical timer´s time base
Cyclical timer´s on time
Cyclical timer´s off time
Initial state of cyclical timer
Cyclical timer always on when the compressor is on
Minimum working voltage (protection)
Maximum working voltage (protection)
Voltage indication offset
Voltage confirmation delay
Display indication mode
Equipment address in the RS-485 network
(1)
(2)
(3)
(3)
(3)
(4)
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F11
F12
F13
F14
F15
F16
F17
F18
-
0.0°C / 0°F
0-cooling
4.0°C / 39°F
5.0°C / 41°F
1.0°C / 2°F
180 sec.
1-min.
3 sec./min.
12 sec./min.
1-on
1-yes
195 Volts
260 Volts
0 Volts
10 sec.
0
1
-
-5.0°C / -9°F
0-cooling
-50°C / -58°F
-50°C / -58°F
0.1°C / 1°F
0 sec.
0-sec.
1 sec./min.
1 sec./min.
0-off
0-no
90 Volts
90 Volts
-50 Volts
1 sec.
0
1
-
5.0°C / 9°F
1-heating
105°C/221°F
105°C/221°F
20.0°C / 36°F
999 sec.
1-min.
999 sec./min.
999 sec./min.
1-on
1-yes
260 Volts
260 Volts
50 Volts
30 sec.
2
247
4.2 - Parameters table
Minimum
Maximum
Default
(1)
(3)
(4)
F02 - Temperature indication offset
F12 - Cyclical timer always on when the compressor is on:
F13/F14/F16 - Operation of the voltage monitor
F17 - Display indication mode
The F02 functions allows for the correction of any changes in the reading, resulting from a change in the sensor or
alteration of the length of the cable.
This function works for some applications, as for example, on cooling tanks for milk, where the timer commands the
agitator that must remain on while cooling is taking place.
If the value of the voltage exceeds the limits set in F13 and F14 the compressor will be automatically turned off after the
time set in function F16 has lapsed.
The led “VOLTS” will slowly blink along with the Indication of the grid voltage on the display.
In the event that the voltage returns to the limits established, the compressor will only be turned on again after the time
scheduled in the F16 function has ended.
To deactivate the voltage monitoring, all you have to do is adjust functions F13 and F14 to the same value.
Function F17 allows you to choose the measurement that will be displayed during normal operation:
Temperature
Voltage
Temperature and voltage
(2)
4.3 - Selection of the unit (°C / °F)
4.4 - Parameters alteration
In order to define the temperature unit that the instrument will operate, enter the access code “231” in
the function
. The indication
will appear. Press
or
to choose between
or
and confirm with
. After selecting the unit the indication
will appear and the instrument
will return to the function
. Whenever the temperature unit is modified, the parameters should be
reconfigured, since they will assume the default values.
- Access function F01 by pressing the
and
keys at the same time for 2 seconds. When the
message
appears release the keys and wait for the
indication.
- Press the
button to access the function and use
and
to enter the code 123. When ready
press again the
button to confirm the code and quit the function F01.
- Select other functions by pressing
or
. To access the desired function press the
key
quickly.
- Adjust the function`s new value with the
and
keys and press
to save and return to the
functions menu.
- To exit the functions menu and return to normal operation press the
button until the message
appears on the display.
SET
SET
SET
SET
SET
SET
5. FUNCTIONS WITH FACILITATED ACCESS
5.1 - Minimum and maximum logs
5.2 - Cyclical timer On/Off status change
5.3 - Cyclical time visualization
5.4 - Temperature, voltage and frequency visualization
Press and release the
key quickly. The indication
will appear followed by the minimum and
maximum logged voltages. Shortly after the last voltage the
indication will be shown and the
minimum and maximum temperatures will be displayed.
to reset the minimum and maximum logs just keep pressing the
key during the visualization
of the logs. The message
will appear indicating the successfull operation.
To change the output of the cyclical timer from "on" to "off" or vice versa just press the
key until the
appears on the display.
To visualize the current status (on/off) time that has already lapsed on the cyclical timer press
quickly.
To consult the voltage and frequency of the electrical grid when the controller is configured to display the
temperature just push the
key quickly. The current voltage value will be displayed followed by the
frequency indication
and it`s value.
To visualize the temperature while the controller is displaying the voltage press the
key like
explained above.
Note:
SET
SET
6. SIGNALLING
If the instrument shows
on the display it means that a parameter is out of acceptable range and it
must be corrected.
THERM -
VOLTS (always on) -
VOLTS (blinking slowly) -
VOLTS (blinking quickly) -
TIMER -
Thermostat output active ;
Indicates the voltage visualization;
Indicates voltage in out range condition;
Indicates an error on the voltage measurement;
Cyclical timer output active.
- Sensor disconnected or temperature out of the specified range.
72 mm
29
mm
7. WIRING DIAGRAM
Note: The length of the cable for the sensor may be increased by the user up to 200 meters, using
PP 2 x 24AWG cable. For immersion in water use thermometric well.
1
2
4
5
6
7
8
9
10
11
12
3
THERM
TIMER
A
B
VOLTMETER
COMMON
Load 1
Load 2
0
115V 230V
RS-485
serial
communication
Sensor
6 - 7
6 - 8
115V
230V
MT-516RVTi plus
- Belt
- Agitator
- Water ’pump
- Contact
Load 1
Load 2
Power
supply
Loads
supply
VOLTMETER:
Connect the borne 9 to borne 7, when
the instrument is supplied in 115Vac or
borne 9 to borne 8, when the instrument
is
in 230Vac.
supplied
- Cooler
- Heater
- Contact
- Solenoid
Dimension of the clipping
for setting of the instrument
in panel
