77
Sensor setup
2.
Follow either the vertical or horizontal procedure below.
Vertical orientation only
a.
Place the sensor under at least 16 cm (6 in.) of water in a vertical orientation.
Make sure the sensor is stable and not moving around. Then press
ACCEPT
to
continue.
b.
Carefully measure the depth (D
1
) from the surface of the water to the first weld
mark that encircles the sensor body just above the breather vent holes
(
). The weld mark indicates the location of the internal diaphragm.
c.
Enter the depth (D
1
) using the numeric keypad then press
ACCEPT
.
Horizontal orientation only
Note: Always check the Level Adjust when reinstalling the sampler following a calibration.
a.
Place the sensor under at least 16 cm (6 in.) of water in a horizontal orientation.
Make sure the sensor is stable and not moving around. Then press
ACCEPT
to
continue.
b.
Measure the depth from the bottom of the bucket to the surface of the water (D
1
)
(
) and enter the value. Press
ACCEPT
.
6.5 Thermal sensor
The sampler utilizes a unique refrigeration compartment thermal sensor which is encased
in a thermal mass (the thermal mass is located in the back right corner of the refrigerator
compartment). This mass is designed to simulate the thermal characteristics of a typical
liquid sample. When the refrigerator door is opened, warm air rushes in and displaces
Figure 24 Measuring submerged depth, vertical orientation
1
Gray band
3
Detachable nose cone
2
Breather vents
4
Depth D
1
Figure 25 Measuring submerged depth, horizontal orientation
1
Depth from bottom of the bucket to the water surface
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
Q-Pulse Id VM373
Active 29/10/2013
Page 77 of 122
