5. INDICATIONS AND KEYS
DIGITAL INDICATOR AND CONTROLLER FOR
HEATING OR REFRIGERATION WITH NATURAL DEFROST
THROUGH COMPRESSOR SHUTDOWN AND
INTERNAL DATALOGGER
MT-512
e
Log
Ver
.09
Control functions
shutdown
Function
lock
Serial
programming
Degrees
of protection
Manual
defrost
IP 65
FRONT
Supervisory
system
Datalogger
LOG
Power supply
Control temperature
Operating humidity
Dimensions (mm)
76 x 34 x 77 mm (WxHxD)
MT-512E Log
115 or 230 Vac ±10%(*) (50/60 Hz)
MT-512EL Log
12 or 24 Vac/dc +10%(*)
-50 to 105ºC (-58 to 221°F)(**)
Operating temperature
0 to 50 ºC / 32 to 122°F
Maximum output current
NO -
16A / 2HP
NC -
500W / 1/10HP
10 to 90% RH (without condensation)
Temperature unit indication LED
MT-512
e
Log
Upper Key
Lower Key
Set Key
User-friendly
Menu Key (Flatec)
Cooling indication LED
Heating indication LED
Defrost indication LED
Functions lockdown indication LED
Control functions OFF indication LED
Maximum consumption of device
1.5 VA
(*)
Admissible variation in relation to the voltage rating.
(**)
This device can measure and control temperatures of up to 200° C when used in conjunction with a model SB59 silicon
sensor cable (sold separately).
Note:
Sensor cable length can be increased to up to 200 meters by the user by using a PP 2 x 24 AWG cable.
Image I: MT-512E Log - 115Vac
1. DESCRIPTION
2. SAFETY RECOMMENDATIONS
3. APPLICATIONS
4. TECHNICAL SPECIFICATIONS
Designed for cooling or heating application.
MT-512
e
Log
is equipped with 1 powerful 2HP relay, 1
temperature sensor, 1 digital input, data logger, cyclic time for natural defrost, IP65 frontal, min-max
temperature record, sensor response time control, fast freezing mode, tamper-proof function, control
functions shutdown and RS485 serial communication port for Sitrad real-time monitoring and
management.
Product conforming to UL Inc. (United States and Canada).
- Check the controller for correct assembling;
- Make sure that the power supply is off and that it is not turned on during the controller installation;
- Read the present manual before installing and using the controller;
- Use adequate Personal Protective Equipmenet (PPE);
- For application at sites subject to water spills, such as refrigerated cabinets, install the protecting vinyl
supplied with the controller;
- For protection under more critical conditions, we recommend the Ecase cover, which we make
available as an optional item (sold separately);
- The installation procedures should be performed by a qualified technician.
• Refrigerated displays
• Walk-in coolers
• Hot cabinets
• Greenhouses
115 Vac
Image III: MT-512EL Log - 12Vac/dc
6. WIRING DIAGRAM
6.1. Identifications (see Images I to IV)
-
Image I:
MT-512E Log, supplied at 115 Vac.
-
Image II:
MT-512E Log, supplied at 230 Vac.
- Image III:
MT-512EL Log, supplied at 12 Vac/dc.
- Image IV:
MT-512EL Log, supplied at 24Vac/dc.
Image
MT-512E Log
II:
- 230 Vac
230 Vac
POWER
12Vac/dc
Image IV: MT-512EL Log - 24Vac/dc
POWER
24Vac/dc
IMPORTANT
SCREWDRIVER SLOT 3/32''(2.4mm) FOR ADJUSTMENTS IN THE SIGNAL TERMINALS;
SCREWDRIVER PHILLIPS #1 FOR ADJUSTMENTS IN THE POWER TERMINALS;
THE USE OF APPROPRIATE TOOLS IS ESSENTIAL TO AVOID DAMAGE IN THE CONNECTION AT INSTRUMENT
TERMINALS:
6.2. Temperature sensor connection
- Connect the sensor wires to terminals ‘1 and 2’: the polarity is not relevant.
- Length of the sensor cables can be increased by user himself to up to 200 meters, using a PP 2x24
AWG cable.
- For immersion in water, use a thermowell (Image VI - item 13), available in the Full Gauge Controls
product line (sold separately).
CONTROLLER
WIRING
TERMINALS
TEMPERATURE
SENSOR
WIRING
TERMINALS
LOAD
CONTROLLER
WIRING
TERMINALS
LOAD
TEMPERATURE
SENSOR
WIRING
TERMINALS
CONTROLLER
WIRING
TERMINALS
TEMPERATURE
SENSOR
WIRING
TERMINALS
LOAD
LOAD
TEMPERATURE
SENSOR
CONTROLLER
WIRING
TERMINALS
WIRING
TERMINALS
D1
A
B
NC
D1
A
B
D1
A
B
D1
A
B
NC
NC
NC
POWER
GRID
}
POWER
GRID
}
POWER
GRID
}
POWER
GRID
}
evolution
S u r g e P r o t e c t i v e
Device (SPD)
(sold separately)
W i r i n g d i a g r a m f o r
instalation of SPD in
magnectic contactor
A1 and A2 are the terminals of
the contactor coil.
A1
A2
W i r i n g d i a g r a m f o r
instalation of SPD in line
with loads
For direct drive take in to
consideration the specified
maximum current.
LOAD
SPD
SPD
Cutout dimensions (mm)
71 ± 0,5 x 29 ± 0,5 mm (see image V)
NO
COMMON
NO
COMMON
NO
COMMON
NO
COMMON
MT512ELOG9-02T
-15255
MT-512
e
Log
MT-512
e
Log
E251415
