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INSTRUCTIONS FOR INSTALLATION AND USE.
LTR15
Thank you for having chosen a LAE electronic product. Before installing the instrument, please read these instructions carefully to
ensure maximum performance and safety.
1. INSTALLATION
1.1. LTR15 is sized 77x35x77 mm (WxHxD). It is inserted into the panel through a hole 71x29 mm and secured by pressing gently
into the relative clamps. The rubber gasket should be placed between the instrument frame and the panel, checking its seal to avoid
infiltration.
1.2. The instrument should operate at an ambient temperature between -10°...+50°C and relative humidity between 15%...80%. To
reduce the effects of electromagnetic disturbance, ensure that the sensor and signal cables are well separated from the power
conductors.
1.3. The supply voltage, switched powers and arrangement of connections must be in compliance with the indications given on the
container.
CAUTION: if the relays must frequently change over a heavy load, it is advisable to contact the manufacturer to obtain indications
regarding the lifetime of the contacts.
Whenever products are to be stored within very rigid specifications or they are very valuable, it is advisable to use a second instrument
that can activate or warn in the event of any malfunction.
2. CONTROL PARAMETERS
The regulator is adapted to the controlled system by suitably programming its configuration parameters from the setup menu. The
instrument comes with a general setup and cannot therefore be used without having first checked that the parameters are correct. Setup
is accessed by pressing in succession the keys
parameters appear in TABLE 1 shown below.
Use the button
to pass from one parameter to the next, to pass to the previous one press button
press the key
, to change it press
SET
30 seconds, exit is automatic.
The set point 1SP may also be displayed and adjusted during normal regulator operation by pressing the key
point in any case remains within the limits SPL and SPH.
SCL
1°C / 2°C / °F
SPL
-199...SPH[°]
SPL...999[°]
SPH
SPL...SPH [°]
1SP
HY/PID
1Y
-199...199 [°]
1HY
1PB
-199...199 [°]
1IT
0...999 [s]
3. DISPLAYS
For approx. three seconds upon switching on, the instrument displays
the operating status of the regulator. TABLE 2 gives the indications associated with the various states.
The temperature measured by the sensor is processed by the microprocessor to display it in the most representative way. For this
purpose it may be corrected with a fixed offset, assigning the parameter OS1 a value other than zero, and displayed in the desired
scale by setting the parameter SCL: with SCL=1°C the temperature is displayed in the Celsius scale with auto-range 0.1°/1°C; with
SCL=2°C or °F the temperature is displayed with a resolution of a degree in the Celsius or Fahrenheit scale respectively.
Prior to display, the temperature is processed by a special algorithm, which allows the simulation of a thermal mass directly proportional
to the SIM value; the resulting effect is a reduction in the oscillation of the displayed value.
The output status is shown through the luminous point on the display.
All manuals and user guides at all-guides.com
+
+
and keeping them pressed simultaneously for 3 seconds. The available
SET
+
or
simultaneously. Press the key
SET
Reading scale
Minimum temperature set point
Maximum temperature set point
Effective temperature set point channel 1
Control type channel 1
Change-over hysteresis channel 1
Proportional band channel 1
Integral action time channel 1
TABLE 1
to exit from setup; if the keyboard is not touched for
1DT
0...999 [s]
0...100%
Reset of integral action referred to Pb1
1AR
0...255 [s]
1CT
ON/OFF
Channel 1 status with faulty sensor
1PF
NON/SBY
BAU
SIM
0...100
OS1
-150...150[°]
ADR
0...255
(internal self-test phase). Subsequent indications depend on
. To display the correlated value
+
or
SET
Derivative action time channel 1
Cycle time channel 1
Operation mode auxiliary button
Display slowdown
Sensor correction
Peripheral address
. The set
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