IR-Tec TRANS LMD-509 Series Installation Instructions Download Page 2

INSTALLATION

The potentiometer T sets the period of delay time that sensor 
will turn off the connected lights after the area is vacated. 

The LMD-509 series can be mounted with a junction box 
into the ceiling, internally integrated or externally attached to 
a fixture to control the lighting with specific mounting 
bracket. Please refer to the mounting instructions separately 
attached for details of mounting options available. 

T - Delay Time

The potentiometer L sets the ambient light level that the 
sensor will activate occupancy sensing control.

L - Ambient Light Level 

The sensitivity and detection pattern of HFD sensor may vary 
with the furniture placement, partition layout, wall material, 
and shape of the space. For example, the detection pattern 
will become long rectangular if sensor is placed in a long 
corridor. 4 levels of sensitivity can be set via combinations of 
DIP switch #1 and #2.

Sensitivity 

- SW1 & 2

The combination of DIP switch #3 and #4 determines the 
sensing control mode.

Control Mode 

- SW3 & 4

The LMD-509 series features 4 different control modes 
selectable via combination DIP switch #3 and #4, and 4 
levels of sensitivity set via combination DIP switch #1 and 
#2. The LMD-509 series also provides 7 different light-Off 
delay time and daylight threshold settings via 2 Accu-Set 
digital potentiometers marked T and L respectively. 

To change the sensor setting, 
rotate the front cover 
counter-clockwise to remove. 
Replace the front cover after 
the setting complete.  

SENSOR SETTINGS

24H

T

1’

3’

5’

10’ 20’ 30’

T (min.)
L (lux)

1

2

3

4

5

6

7

Position

15

20

5

10

25

60

Factory Set

T

L

T

L

(Factory set)

(10 minutes)

(ALS disabled)

SW1 & 2 (100% Sensitivity)

SW3 & 4 (OSLATO Mode)

ON

1 2 3 4

1

2

3

4

5

6

7

1

2

3

4

5

6

7

Click!

DIP switch
setting

Sensitivity

100%

ON-ON

ON-OFF

OFF-ON

OFF-OFF

75%

50%

25%

ON

1 2 3 4

ON

1 2 3 4

ON

1 2 3 4

ON

1 2 3 4

SPECIFICATIONS 

Power supply

HFD sensitivity
Load switching
HIC protection
Dim control
Detection range
Mounting height
Ambient light level
Delay time setting
TIME OFF delay
Op. humidity
Op. temperature
Dimensions

120/240/277VAC, 50/60 Hz
  

25/50/75/100% selectable via DIP switch setting
Zero-cross Hybrid-Switching
Max. 80A for 16.7msec.
0-10V, ±5%,

 

non-isolated, max. 25 mA

Up to 180 sq. m. @ 3 m (2,000 sq. ft @ 10 ft)
2.4 ~ 6 m (8 ~ 20 ft)
7 level Accu-Set digital potentiometer
T/1'/3'/5'/10'/20'/30' , T=10 sec. for testing
10 min., OSLATO mode only
Max. 95% RH
-40°C~70°C (-40°F~158°F)
Ø60 x H42 mm (Ø2.36"x H1.65")

*Max load for operating temperature at 55°C~70°C (131°F~158°F)

120VAC
800/*500W(VA)
800/*500W(VA)
 540/*500VA

5A
5A
5A

240VAC

1200/*750W(VA)
1200/*750W(VA)
1200/*750VA

277VAC

Maximum load

-Incandescent/Halogen

-Fluorescent Ballast/CFL
-Ballast Electronic (LED)

OSLATO

OSLA

OSO

ON/OFF

: Occupancy Sensing at Low Ambient with Time-Off 
: Occupancy Sensing at Low Ambient 
: Occupancy Sensing Only
: ON-OFF Switching

Mode

Control (LMD-509Sx) 

ON/OFF

1. 

2. 

3. 

OSO

1. 
2. 
3. 

4. 

OSLATO

1. 

2. 

3. 

4. 

5.

 

ON-ON

ON

1 2 3 4

OFF-ON

ON

1 2 3 4

OFF-OFF

ON

1 2 3 4

While ambient lux is 

higher

 than the level set, light 

stays 

OFF

.

While ambient lux is 

lower

 than the level set, and 

occupancy detected

, switch the light 

ON

.

Dim the light to 

30%

 after occupant leave and delay 

time elapses.
Turn 

OFF

 the lights when 10 minutes 

TIME OFF

 

delay elapses.
When 

occupancy detected

 during 

TIME OFF

switch the light 

ON

.

OSLA

1. 

2. 

3. 

4. 

ON-OFF

ON

1 2 3 4

While ambient lux is 

higher

 than the level set, light 

stays 

OFF

.

While ambient lux is 

lower

 than the level set, dim 

the light to 

30%

 under vacancy.

While ambient lux is 

lower

 than the level set, and 

occupancy detected

, switch the light 

ON

.

Dim the light to 

30%

 after occupant leave and delay 

time elapses.

Ambient light is disabled with this mode.
Dim the light to 

30%

 at 

all time

 under vacancy.

Switch the light to 

ON

 under occupancy.

Dim the light to 

30%

 after occupant leave and delay 

time elapses.

While ambient lux is 

higher

 than the level set, light 

stays 

OFF

.

While ambient lux is 

lower

 than the level set, and 

occupancy detected

, switch the light 

ON

Turn 

OFF

 the light after occupant leave and delay 

time elapses.

To verify sensor control function normal, please proceed 

with the instructions as below to conduct test;

TESTING

Set the arrow of T (DELAY TIME) potentiometer pointing 

at position "1" (TEST) and other setting to the desired 

threshold.

Walk within the expected range at normal speed. The 

sensor will switch ON the light for 10 seconds whenever 

sensor detects the movement, and then switch OFF or 

DIM to 30% for 10 seconds as per the selected mode. 

The LED of sensor will also blink to indicate every 

motion detected.

After testing complete ensure to set the T potentiometer 

to the position of desired time. NOTE: The sensor will 

automatically control the light as per the selected mode 

with factory set time delay (10 minutes) if the T 

potentiometer has NOT been set to other position.

1.

2.

3.

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