Technical Information
Page 3 of 3
V1. Aug 2018
2.
Dip the probe into the Conductivity/TDS Standard without exceeding the water level limit.
3.
Stir gently until the display stabilises and then remove the meter from the water. (The reading will
automatically hold). The reading should be 989 +/- 25ppm.
4.
If the reading is incorrect, remove the battery compartment cover to access the calibration button.
5.
Turn the calibration button with a screwdriver until the reading shows 989ppm.
Battery Replacement
1.
To replace the batteries, remove the battery compartment cover and install a new CR2032 lithium
battery into the battery holder. Make sure the battery is properly placed with the positive “+” side up.
2.
Close the battery compartment cover. Then press the power button. The LCD should now show “000”. If
the LCD does not light up, repeat the above steps.
Error Codes
•
"Err” Reading above 1999ppm
Mini Infrared Thermometer
Operation
1.
Point the unit at the surface to be measured. Ensure that the meter is approximately 12” (30cm) away from the
surface. The light spot is used for aiming at the target.
2.
Press the button and the temperature reading will be updated on the LCD. When the operator releases the button,
the reading will automatically be held on the LCD for 10 seconds. After 10 seconds the thermometer will power down.
3.
The temperature units can be changed by using the °C/°F switch.
Measurement Notes
1.
If the surface of the object under test is covered in oil, grime etc clean before taking measurements.
2.
If the surface of the object is highly reflective, apply masking tape to the surface before measuring.
3.
Steam, dust, smoke can obscure accurate measurements.
Battery Replacement
When the low battery symbol appears on the LCD, replace the meter’s 1.5V batteries. Detach the battery compartment
cover by pushing the engraved pattern on the handle and pull down. Replace the 1.5V x 2 batteries with new ones and
replace the battery compartment cover.
Sentinel Test Kit
Instructions for use
1.
Place one No. 1 tablet and one No. 2 tablet in the plastic tube.
2.
Fill the tube brim-full with a fresh sample of water from the central heating system.
3.
Stopper the tube and shake well.
4.
Leave for 5 minutes for the colour to develop, shaking occasionally.
5.
Hold the tube up against the white panel on the colour comparison card.
6.
If there is sufficient Sentinel X100 present to protect the system, the liquid in the tube will be a darker colour than the
yellow card.
7.
If the liquid in the tube is a lighter colour than the card, add more Sentinel X100 to the system and repeat the test.
8.
Rinse the tube thoroughly with tap water after use.
Sentinel Performance Solutions Ltd
7650 Daresbury Park, Warrington, Cheshire, WA4 4BS, UK
Tel: +44 (0) 1928 704 330 www.sentinelprotects.com
