Full Gauge Controls MT-512Ri Manual

1. DESCRIPTION
The MT-512Ri is a temperature controller and gauge, with adjustable settings for cooling and
defrosting processes. It controls cooling and defrost by stopping the compressor. The controller uses an
intelligent system to lock the keys and deactivate the control functions.
Product complies with CE (European Union), NSF (United States) and UL Inc. (United States and
Canada).
2. APPLICATIONS
• Counters
• Cooled chambers
3. TECHNICAL SPECIFICATION
- Power supply: MT-512Ri
→ 115 or 230 Vac 10%(50/60 Hz)
MT-512RiL → 12 or 24 Vac/dc
- Control temperature: -50 to 105ºC (-58 to 221°F)
- Maximum current: NO
→ 16(8)A/250Vac 1HP
NC → 8A/250Vac
- Dimensions: 71 x 28 x 71mm
- Operating temperature: 0 to 50 ºC / 32 to 122°F
- Operating humidity: 10 to 90% RH (without condensation)
*
( )
Th is instrument can measure and control up to 200ºC temperatures, since used with silicone cable
sensor (ex.: SB59).
CLASSIFICATION ACCORDING TO IEC60730-2-9 STANDARD:
- Temperature limit of the installation surface: 50°C / 122°F
- Type of construction: Built-in electronic controller
- Automatic action: Type 1
- Control of pollution: Level 2
- Impulse voltage: 1,5kV
- Temperature for the test of sphere pressure: 75°C and 125°C / 167°F and 257°F
- Insulation: Class II
4. CONFIGURATIONS
4.1 - Control temperature adjust (SETPOINT)
- Press @ for 2 seconds until appears[set], and then release the key.
The set control temperature will appear.
- Use the > or < keys in order to change the value and, when ready, press @ to record.
4.2 - Parameters table
Configuration parameters protected by access code.
Description
Fun
[F01] Access code: 123 (one hundred and twenty three)
[F02] Indication offset
[F03] Minimum setpoint allowed for the end user
[F04] Maximum setpoint allowed for the end user
[F05] Control differential (hysteresis)
[F06] Delay in restarting the cooling operation
[F07] Cooling time
[F08] Defrosting time (*)
[F09] Initial state when turning the device on again
[F10] Indication of the temperature locked during defrost (**)
[F11] Delay on the activation of the instrument
[F12] Additional time at the end of the first cycle
[F13] Situation of the compressor with the damaged sensor
[F14] Intensity of the digital filter (***)
[F15] Time to Key blocker
Deactivation of the control functions
[F16]
* Heating operation mode - To make the instrument work in heating operation mode, simply adjust the F08 function with
[Hot]
minimum value until appears.
** Frozen indication on display - If F10 is enabled, the indication is only released in the next cooling cycle after the temperature
reaches that "locked" value again or after 15 minutes in refrigeration (as security).
*** This filter aims at simulating an increase of the mass of sensor , thus increasing its response time (thermal inertia). The larger the
value adjusted in this function, the longest the response time of sensor.
A typical application requiring this filter is the freezer for ice cream or frozen goods, because when the door is opened a hot air mass
reaches the sensor directly, causing the indication of the measured temperature to rise quickly and the compressor to be activated
unnecessarily many times.
4.3 - Parameters alteration
- Access function "F01" by simultaneously pressing keys > and < for 2 seconds.
When the message[fun]appears release the keys, when the indication [f01]appears on the
display press the @ key and use > or < to enter the access code (123) When ready press the
@ button to confirm.
- If the keys are locked, the controller will show the message [LOC] in the display upon pressing the
> or < key and will not permit any change in value
- Use keys > or < to access the desired function.
- After selecting the function, press @
function.
> or <
- Use the keys to change the value and, when ready, press
configured value and return to the function menu.
- To exit the menu and return to the normal operation (temperature indication), press
[---]
until appears.
MT-512Ri
DIGITAL CONTROLLER FOR COOLING
WITH NATURAL DEFROST THROUGH
COMPRESSOR SHUTDOWN
Ver.11
±
( ) *
CELSIUS FAHRENHEIT
Min Max Unit Standard Min Max
- - - - -
-5.0 5.0 °C 0 -9
-50 200 °C -50 -58 392
-50 200 °C 75.0 -58 392
0.1 20.0 °C 1.0 1
0 999 sec. 20 0 999
1 999 min. 240 1 999
0 999 min. 30 0 999
0- cooling 1-defrost - 0- cooling 0- cooling 1-defrost
0-no 1-yes - 0-no 0-no 1-yes
0 240 min. 0 0 240
0 240 min. 0 0 240
0-off 1-on - 0-off 0-off 1-on
0 9 - 0 0
14-no 60 sec. 14-no 14-no
0 2 - 0 0
(press once quickly) to view the value configured for that
@
5. FUNCTIONS WITH FACILITATED ACCESS
5.1 - Maximum and minimum temperature logs
Press the< key. The minimum and maximum temperatures registered will appear.
Note: To restart the logs you just have to keep the < key pressed during the viewing of the minimum
and maximum temperatures until [rst] to be displayed.
5.2 - Manual Defrost
- To change from "cooling" to "defrost" or vice-versa, irrespective of the programming, hold < key in
for four seconds, until[def][Off]or [def][,on]appears in the diplay.
5.3 - Processes Viewing
To visualize the status and the elapsed time, press>.
[del] → Initial delay , [ref] → Refrigeration, [def] → Defrosting.
If the control functions are turned off, the MT-512Ri will work as a simple temperature gauge,
without controlling the cooling and defrost. Therefore, the status and the time elapsed will not be
displayed.
5.4 - Key blocking
For security reasons this controller permits blocking the key settings.
With this feature enabled, the setpoint and further settings are protected against undue alterations.
After key blocking, the user can only see the setpoint and settings, when trying to change the settings
the controller will display the message[LOC].
To proceed with the key blocking it is required that the parameter "F15 -Time to key Blocker" is
configured with a different value than" 14-No " (15-60 seconds).
If F15 is set as "No" the key lock is not allowed.
To block, hold the key > for the time programmed in function F15.
The controller will display the message [LOC] +[On,].
To unblock, turn off the controller and turn it back on holding the key > for 10 seconds untill the
message[LOC]+[Off]be displayed.
5.5 - Deactivation of the control functions
When the control functions are turned off, the controller starts to operate as a temperature gauge
only and the output switch is turned off.
The method used to turn off the control functions depends on the configuration of the parameter
"F16- Deactivation of the control functions":
Unit Standard
- - -
9 °F 0
To turn off the control functions, press the < key for 10 seconds until the message [CtL] is
°F -58
displayed. When the key is released, the message [OFF] will be displayed. With the control
°F 167 functions turned off, the message [Off] and the temperature sensor will be displayed
alternately.
40 °F 2
To turn on the control functions again, press the < key for 10 seconds until the message
sec. 20
[CtL] is displayed. When the key is released, the message [,On] will be displayed.
min. 240
min. 30
NOTE: When the control functions are turned on again, the MT-512Ri will continue to follow the
- 0- cooling
functions "F06 - Delay in restarting the cooling operation" and "F09 - Initial state when
- 0-no turning the device on again".
min. 0
min. 0
- 0-off
6. SIGNALLING
9 - 0
REFRIG - Cooling output on
60 sec. 14-no
DEFROST - Performing natural defrost
2 - 0
[err] - Sensor disconnected or temperature out of the specified range.
[OFF] - Control function turned off
[def][,On] - Activation of defrost cycle manually
[def][OFF] - Activation of refrigeration cycle manually
[LOC][,On] - Keypad locked
[LOC][OFF] - Keypad unlocked
7. SELECTION OF THE UNIT (ºC / ºF)
In order to define the unit that the instrument will operate in, enter function "F01" with the access code
231 and confirm with the @ key. Press the < key and the indication [Uni]will appear.
Press @to choose between [,=C] or [,=F] and confirm. After selecting the unit the [faC]
message will appear, and the instrument will return to the function "F01". Every time that the unit is
changed, the parameters should be reconfigured, since they assume the "standard" values.
to memorize the
@ (hold it in)
.
[,0,] - Does not allow the control functions to be turned off;
[,1,]- Allows the control functions to be turned on and off only if the keys are not
locked;
[,2,]- Allows the control functions to be turned on and off even if the keys are
locked;
E251415
COMPONENT