SandAlert Lite 2
nd
Edition
Page
10
Connect the sensor to the cable using the in-line cable plugs and sockets, the plug and socket will
only mate in the correct way, tighten the collet to secure the connection.
Connect the short interconnection cable from the cable reel to the SandAlert Lite.
Refer to the system diagram (Figure 1) to ensure that all the electrical connections have been made
correctly.
5
Quick guide to installing the system
This section describes how to quickly install the system. For more detailed information, see
section 4.
5.1
Attach the Sensor to the Pipe
The acoustic sensor detects the high frequency sound generated by the impacts of sand and other
solid particles e.g. proppant on the inside of the pipe wall. Therefore, best results will be obtained if
the sensor is positioned on or just after a bend (within two pipe diameters of the bend), or a fixed
restriction to the flow. Do not position the sensor in close proximity to a choke or other variable
restriction, since changes in the choke position may affect the SIR readings.
Attach the sensor to the pipe with the chain clamp and tools provided, remembering that the point
of contact with the pipe should be cleaned of paint, to allow the clamp to contact with bare metal.
Some suitable grease, such as silicon grease, should also be applied between the pipe and the
clamp, and the clamp tightened securely.
In the case of the PULSARguard 2001 use the banding as described in 4.2.
5.2
Connect the Sensor to the SandAlert Lite
Run the cable reel from the sensor back to the SandAlert Lite and connect the plug to either the
channel one or channel two sensor connector.
5.3
Switch on the SandAlert Lite
Ensure that the SandAlert Lite is plugged into the correct power supply, switch on using the power
switch, and the green LED will illuminate. After approximately 1 minute the unit will start
monitoring.
5.4
Connecting to the data collection system
The SandAlert Lite connects to yoour data collection system via its RS232 serial port.
The serial connection is made via the 9 way ‘D’ type connector on the front panel next to the VGA
socket, connections are as detailed in the table below:
SandAlert Lite (9way FEMALE)
PC (25way MALE)
PC (9way MALE)
PIN 3 (RxD)
PIN 2 (TxD)
PIN 3 (TxD)
PIN 2 (TxD)
PIN 3 (RxD)
PIN 2 (RxD)
PIN 5 (SIGNAL GND)
PIN 7 (SIGNAL GND)
PIN 5 (SIGNAL GND)
The SandAlert Lite could be connected to a PC running terminal to check the data is transmitting
and is of the expected format. Details for connecting to terminal are below:
