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3.0 INSTALLATION AND BASIC WIRING
3.2.1 Assembly Instructions for F1 Flexible Probes
Refer to Appendix B for /F1 Option Assembly Drawing
1. Prepare joints #2 and #3 by lubricating the O-Ring and mating surface.
2. Lower the bottom tube section with the float stop and float into the tank.
3. Insert the top of the tube assembly through the mounting flange.
4. Add the next section of tube and thread together using thread locking fluid to secure joints.
5. Repeat step 4 for each middle tube sections.
6. Add the last section (TOP) of tube, with 1" compression fitting, and thread into assembly using thread
locking fluid to secure the joint.
7. Thread the tube compression fitting into the mounting flange using thread sealant.
8. Lower the tube assembly until it hits the bottom of the tank. Raise the sensor well back up ½" and
secure the assembly in place by tightening the tube compression fitting.
WARNING:
When handling flexible tube, do not bend any section of the tube into a diameter of less than 4 ft., as this
could permanently damage the internal assembly and prevent proper operation.
9. Insert the flexible probe into the tube assembly. Secure flexible probe assembly to stainless steel tube
using 1" tube to 1" tube compression fitting.
WARNING:
Insure that assembly is tight and properly sealed to prevent moisture entry.
3.3 Loop Wiring
Remove the test wires shipped with the transmitter. For field wiring, use 18 Gauge twisted shielded pair.
Please refer to included wiring diagram (Section 8.0). Electrical connection to the transmitter should comply with all
necessary standards as indicated by the area classification listed on the nameplate of the transmitter (Section 7.0).
Apply loop power to transmitter as follows:
Terminal Block +
Terminal Block - (METER)
Terminal Block METER
Ground screw
- Ground wires must be connected to ground screws using fork terminals to ensure proper electrical connection.
- The current output of the transmitter is capable of driving a minimum of 250 ohms with a supply voltage of 19 Volts minimum.
WARNING:
A multi-meter may be placed between the METER positions of the terminal block to read the current output
of the transmitter without breaking the loop wiring. Do not connect multi-meter to METER test positions when instrument
is located in a hazardous environment.
3.4 Jumper Settings
The jumpers located on the face of the electronics module (top left hand side) can be setup as follows:
See Section 6.11
ALARM (Fail Safe): (left jumper)
-The Alarm jumper will determine the output of the transmitter in the event that there is a failure in detecting
the return signal from the sensor tube. This jumper should be set in the location which will send the control
structure into a safe state.
-Placing the jumper to the lower position causes the output to go to 20.99 mA when there is a loss of signal
or transmitter malfunction.
-Placing the jumper to the upper position causes the output to go to 3.61 mA when there is a loss of signal
or transmitter malfunction.
WRITE PROTECT (right jumper)
-When the jumper is in the lower position, the transmitter configuration cannot be changed via the
pushbuttons or with a handheld communicator.
For changes to the jumper settings to take effect, transmitter power must be turned OFF then back ON.
AT100-0200-1 Rev L (10-2010) DCN0528
:
+24 VDC (14-36 VDC)
:
COMMON
:
Not used during normal operation
:
GROUND
6
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