Full Gauge TC-900EL Log Manual

Have this manual in the palm of
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1. DESCRIPTION

Designed to better safeguard frozen products.
Defrost & Fan), 2 temperature sensors, 2 digital inputs, real-time clock, data logger and light intensity
sensor. A third temperature sensor can be connected to one of it's digital input for either defrost
management of second evaporator; condenser temperature control or to activate economic set point.
Other salient features include hour-meter to clock the working hours of compressor for preventive
maintenance, internal buzzer, IP65 frontal, min-max temperature record, temperature 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) and NSF (United States).

2. APPLICATION

• Walk-in freezers
• Display freezers
• Upright freezers

3. TECHNICAL SPECIFICATIONS

Power supply
Control temperature
Operating temperature
Load current (outputs)
Maximum consumption of device
Operating humidity
Dimensions (mm)
Dimensions of the clipping for fixing
of the instrument
4. INDICATIONS AND KEYS
Defrost indication LED
Fan indication LED
Compressor output
indication LED
Quick Access
Menu Key
Set key
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TC-900
5. INSTALLATION - ASSEMBLING AND ELECTRICAL
CONNECTIONS
ATTENTION
FOR INSTALLATIONS WHERE A SEALING IS REQUIRED TO AVOID LIQUID CONTACT, THE CUT FOR THE CONTROLLER MUST BE OF
70,5X29mm MAXIMUM. THE SIDE LOCKS MUST BE FIXED SO IT PRESSES THE RUBBER SEALING AVOIDING
INFILTRATION BETWEEN THE CUT AND THE CONTROLLER.
IMPORTANT
THE USE OF APPROPRIATE TOOLS IS ESSENTIAL TO AVOID DAMAGE IN THE CONNECTION AT INSTRUMENT TERMINALS:
SCREWDRIVER SLOT 3/32''(2.4mm) FOR ADJUSTMENTS IN THE SIGNAL TERMINALS;
SCREWDRIVER PHILLIPS #1 FOR ADJUSTMENTS IN THE POWER TERMINALS;
Connection 115 Vac
SITRAD
D2
A B
5 6 7 8
9 10 11 12 13 14 15 16 17
1 2 3 4
D1/S3
TC-900
DIGITAL CONTROLLER FOR FREEZING SYSTEMS
WITH DEFROST SCHEDULING AND INTERNAL
DATALOGGER
Fast Functions Control Luminosity Hourmeter
Freezing lockdown functions sensor
shutdown
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TC-900 Log
is equipped with 3 relays (Comp,
TC-900E Log: 115 or 230Vac ±10% (50/60Hz)
TC-900EL Log: 12 or 24Vac/dc +10%
-50°C to 105°C / -58°F to 221°F
0 to 50°C / 32 to 122°F
COMP: 12(8)A / 240Vac 1HP
DEFR: 10A / 240Vac 2400W
FANS: 5(3)A / 240Vac
1.5 VA
10 to 85 %RH (without condensation)
76 x 34 x 77 mm (WxHxD)
71 ± 0,5 x 29 ± 0,5 mm (see item 5)
Functions lockdown indication LED
Control functions shutdown indication LED
Temperature unit indication LED
Log
71 ± 0,5 mm
Dimension of the clipping
for fixing of the
instrument in panel
Panel
Panel (Front View)
(Side View)
Connection 230 Vac
SITRAD
D2
A
B
5 6 7 8
9 10 11 12 13 14 15 16 17
1 2 3 4
115 Vac
D1/S3
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Log
IP 65
LOG
FRONT
Serial Datalogger Supervisory Protection
programming system level
Connection 12 Vac/dc
SITRAD
D2
A
B
5 6 7 8
9 10 11 12 13 14 15 16 17
1 2 3 4
12 Vac/dc
D1/S3
The sensor S1 (black) must be in the ambient.
The sensor S2 (gray) must be placed in the evaporator
through metallic cramp.

6. OPERATIONS

6.1 Quick Access Menu Map
To access or navigate the quick access menu using the
displaying the temperature. For every touch, the next function in the list is displayed. To confirm, use the
/
(short press) key.
FAST FREEZING (ON/OFF)
;
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TC-900 Log
ECONOMIC SETPOINT (ON/OFF)
;
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TC-900 Log
DEFROST (ON/OFF)
;
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FUNCTIONS LOCKDOWN
;
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Upper key
CONTROL FUNCTIONS
SHUTDOWN (ON/OFF)
;
Lower key
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TC-900 Log
NORMAL SETPOINT
;
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TC-900 Log
ECONOMIC SETPOINT
;
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TC-900 Log
6.2 Quick access keys map
When the controller is on temperature display, the following keys serve as a shortcut for the following
functions:
/
Hold down for 2 seconds: setpoint adjustment.
Short touch: the current day, month, year, day of the week, hour, and
/
<
Short touch: displays the current process.
<
Hold down for 2 seconds: inhibits the audible alarm.
Hold down for 2 seconds: resets the counter when the hour meter is being
<
<
Short touch: displays the maximum and minimum measurements recorded.
<
Hold down for 2 seconds: clears history when records are displayed.
<
Hold down for 4 seconds: carries out manual defrost.
;
Short touch: enter the quick access menu.
;
Pressed for 5 seconds: turn on/turn off the control functions.
<
<
and Hold down for 10 seconds: manual datalogger activation.
230 Vac
<
<
and
Short touch: Go to menu selection.
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TC -9 00 TC -9 00
Connection 24 Vac/dc
SITRAD
D2
A B
5
6 7 8
9 10 11 12 13 14 15 16 17
1 2 3 4
Loads supply
24 Vac/dc
D1/S3
LEGEND:
;
(short press) key while the controller is
MIN. AND MAX.
TEMPERATURE RECORD
;
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TC-900 Log
minute will be shown in sequence on the display.
displayed.
evolution
COMPONENT
E251415
Loads supply
To the terminal of
the connecting block
EXIT FUNCTION
;
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TC-900 Log
RESET HIGH AND LOW
PRESSURE ALARMS
;
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TC-900 Log
FUNCTION SELECTION
;
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ON/OFF DATA LOGGER
(MANUAL MODE)
;
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TC-900 Log
DISPLAY TIME AND DATE
;
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TC-900 Log
DISPLAY HOURMETER
;
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ERASE MIN. AND MAX.
VALUES
;
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TC-900 Log