LAE electronic LTR15 Instructions For Installation And Use Download Page 1

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  + +

and keeping them pressed simultaneously for 3 seconds. The

available 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  . To display the correlated

value press the key  , to change it press  +

or 

simultaneously. Press the key 

to exit from setup; if the keyboard is not

touched for 30 seconds, exit is automatic.
The set point 

1SP

may also be displayed and adjusted during normal regulator operation by pressing the key  +

or  . The

set point in any case remains within the limits 

SPL

and 

SPH.

INSTRUCTIONS FOR INSTALLATION AND USE.

LTR15

0LLTR002EN

SCL

1°C / 2°C / °F 

Reading scale

SPL

-199…SPH[°]

Minimum temperature set point

SPH

SPL…999[°] 

Maximum temperature set point

1SP

SPL…SPH [°] 

Effective temperature set point channel 1

1Y

HY/PID 

Control type channel 1

1HY

-199…199 [°] 

Change-over hysteresis channel 1

1PB

-199…199 [°] 

Proportional band channel 1

1IT

0…999 [s] 

Integral action time channel 1

1DT

0…999 [s] 

Derivative action time channel 1

1AR

0…100% 

Reset of integral action referred to Pb1

1CT

0…255 [s] 

Cycle time channel 1

1PF

ON/OFF 

Channel 1 status with faulty sensor

BAU

NON/SBY

Operation mode auxiliary button

SIM

0…100 Display 

slowdown

OS1

-150…150[°] Sensor 

correction

ADR

0…255 Peripheral 

address

TABLE 1

Summary of Contents for LTR15

Page 1: ...ing 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 and keeping them pressed simultaneously for 3 seconds The available parameters appear in TABLE 1 shown below Use the button to pass from one parameter to the next...

Page 2: ...atus on stand by When it s on standby the controller shows OFF the output is off and it s not possible to have access to the parameter setup 4 2 TYPE OF CONTROL The output may operate in the ON OFF or PID mode 1Y HY is fixed for ON OFF control 1Y PID for PID control 4 3 ON OFF CONTROL In the ON OFF mode the output is ON or OFF in relation to the input temperature set point 1SP and hysteresis value...

Page 3: ... extremely sensitive to small temperature variations and can make the system instable With 1DT 0 the derivative control is disabled 4 5 MALFUNCTIONING Following a sensor malfunction appears on the display and the output is controlled according to the value of the parameter 1PF CAUTION when programming the hysteresis 1HY or the proportional band 1PB it is advisable to consider the number of switcho...

Page 4: ...derivative action time 1Dt caution a high value makes the system sensitive to small variations and may be a source of instability CAUTION during the auto tuning procedure the temperature oscillates near the set point it is therefore advisable to remove products to be controlled within severe specifications 6 RECALIBRATION If it is necessary to recalibrate the instrument for example following repla...

Page 5: ...NS FOR INSTALLATION AND USE VIA PADOVA 25 31046 ODERZO TV ITALY TEL 0422 815320 815303 TELEFAX 0422 814073 www lae electronic com E mail info lae electronic com PARTNER VENEZIA 041 5460713 LTR15A1RE BG LTR15C1FE BG LTR15T1RE BG ...

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