MAHLE RTI NTF-15H - Manual (Page 4)

Page 2
CLASSIFICATION
Protection against electric shock: Internally powered equipment.
Protection against water: IPX4 – Splash-proof
Mode of Operation: Continuous
NITROGEN TESTER FEATURES AND FUNCTIONS
LCD Display: A three-digit display provides a direct readout of nitrogen concentration in the
range of 0 - 99.9 percent. The display is blank when the Nitrogen Tester
enters its sleep
(power off) mode. The Nitrogen Tester
will automatically enter the sleep mode after 2 minutes
from the last time the Nitrogen Tester was energized. Manually turn off the Nitrogen Tester by
pressing the on/off switch.
ON Button/Auto OFF: Use this button to turn the Nitrogen Tester
on or off. When the Nitrogen
Tester is in the Sleep (power off) mode, the LCD display is blank. When the ON button is
pressed once, the Nitrogen Tester will display the nitrogen concentration for two minutes.
Pressing the ON button during this two minute "window" will prolong the ON period to two
minutes from the most recent time that the button was pushed.
Over Range Indicator: The appearance of a decimal point after the first digit means that the
Nitrogen Tester is reading in excess of 99.9 percent.
Examples: 0.0.0 = 100%
0.0.1 = 101%
0.0.2 = 102% (etc).
Calibration Key: This key is used to calibrate the Nitrogen Tester. Holding the key for more
than three seconds will force the device to enter a calibration mode.
Oxygen Sensor: This is used to measure oxygen concentration in sample gas.
Sample Inlet Connection: This is the port at which the Nitrogen Tester is connected to
determine nitrogen concentration.
PRE-USE CHECKOUT / CALIBRATION
Follow these steps before using the Nitrogen Tester:
1. Prior to turning on the Nitrogen Tester, a protective film covering the threaded sensor face
must be removed. After removing the film, wait approximately 20 minutes for the sensor to
reach equilibrium.
2. Pre-assembly, if required.
! Thread the barbed adapter onto the oxygen sensor.
! Connect the clear tubing to the barbed adapter.
3. Using the ON/OFF key, make sure the Nitrogen Tester is in the power ON mode.