English
Quick Start Guide
Gas/Refrigerant leak detectors
Switch on the instrument by pressing briefly on
“On/Off/Esc”
(Si-CD3) or
"On/Off"
(Si-RD3).
2.
Si-CD3 Keys
10. Batteries replacement
The instrument is OFF.
Remove the battery cover at the back.
Replace the 4 alkaline batteries LR03 AAA 1.5 V respecting the polarity.
Put back the battery cover.
These portable instruments are used to measure and detect the following parameters: refrigerants and combustible
gases.
Conditions of use (°C/%RH/m):
from 0 to +50 °C. In non-condensing conditions. From 0 to 2000 m.
Protection:
IP54
Storage temperature:
from -20 to +80 °C.
If the instrument is stored outside the operating temperature (for example in a van, a warehouse...), please wait for
10 minutes in its operating temperature before start using it.
To ensure safety, replace batteries with the same type.
Not doing so might lead to explosion. Dispose of used batteries according to instructions.
8. Display minimum and maximum values (Si-CD3 only)
When measurement is hold:
Press
“Hold/min/max”
: maximum value measured since the last questioning is displayed on the top of the
screen and minimum value measured since the last questioning is displayed on the bottom of the screen.
Press
“On-Off/Esc”
to return to the measurement display.
KEY
FUNCTION
ON-OFF/Esc. Turn the instrument on/off and allow to back to previous selection.
OK key. Confirm selection
Select key. Navigate throught the menu
HOLD/min/max key. Hold value, and display minimum and maximum values
Backlight key. Activate/Deactivate the backlight
7. Hold the measurement (Si-CD3 only)
During measurement, press briefly on
“Hold/min/max”
to hold measurement:
“Hold”
appears on the
screen and measurement is fixed.
Briefly press
“On-Off/Esc”
to exit the Hold function.
During measurement:
Press at least 3 s
key to perform an autozero.
The
“Autozero”
led lights on.
6. Perform manual autozero (Si-RD3 only)
Si-CD3: when it turns on, the device emits a beep then performs a pre-heating phase. This
phase lasts 60 seconds. The count of this pre-heating time displays on screen.
Si-RD3: when it turns on, the pre-heating phase of the sensor begins. This phase lasts 60
seconds. During this phase, all the visualisation leds of thresholds light one after the other.
A few second before the end of the pre-heating phase, all the leds blinks at the same time.
5. Adjust the sensitivity (Si-RD3)
Press
“Sens.”
key to adjust the sensitivity of the device.
Mode
Indicative measuring range (g/year)
Visual alarm
Low sensitivity (“L” on
the device)
From 0 to 300 g/year
All the LEDs (8) for 300 g/year
Normal sensitivity (“M”
on the device)
From 0 to 30 g/year
All the LEDs (8) for 30 g/year
High sensitivity (“H” on
the device)
From 0 to 3 g/year
All the LEDs (8) for 3 g/year
If the gas concentration is high, press
“Sens.”
key to set the sensitivity and like this to get a better
identification of the leak source. Please see in the table below about the three different sensitivities.
KEY
FUNCTION
ON-OFF key. Turn the instrument on/off.
Beep key. Enable or disable the audible signal.
Sens key. Set the sensitivity and allow to perform an autozero.
9. Select the measuring unit (Si-CD3 only)
The device is on and displays the measurement.
Press
“Select”
.
"UNIT"
blinks on screen.
Press OK.
The unit currently used blinks on screen.
Press
“Select”
until the desired unit appears : ppm, %VOL, %LEL.
Press OK to validate the unit selection.
“UNIT”
blinks on screen.
Press
“On-Off/Esc”
to return to the measurement display.
Symbols used
For your safety and in order to avoid any damage of the device, please follow the procedure described in
this document and read carefully the notes preceded by the following symbol:
The following symbol will also be used in this document, please read carefully the information notes
indicated after this symbol:
1.
Operating temperature, protection of the instruments and information about storage
4.
Turn on the instruments
3.
Si-RD3 Keys
