Application Considerations - Prime Controls DS1510 Operating Instructions Manual

APPLICATION CONSIDERATIONS

APPLICATION CONSIDERATIONS
Choice of Probes
The DS1510 accommodates a number of Prime probes but is most often used with the P1000B,
P70A, and P70CS probes. The P70A and P1000B probes are potted and completely sealed
units with permanently attached cables. The P70CS probes are potted with connectors for easy
removal. The same probe type is used for transmitter and receiver and is not polarized.
The table below provides rule of thumb information for probe selection.
Probe Housing
P1000B Aluminum block
P70A Threaded steel barrel
P70CS Smooth stainless barrel Connector 0.5" to 3.00" 0.004 to 0.060 steel
Probes with non-ferrous (aluminum and stainless steel) housings offer greater probe separation.
Probes with steel housings are not affected by the material used for mounting. Probes with
aluminum or stainless steel housings are affected by steel near them including mounting clamps.
To realize maximum separation with the P70CS type units, the probes must be mounted in non-
ferrous clamps, e.g. Nylatron or 303 stainless steel.
Prime offers a number of other probes that allow the DS1510 to be applied to a wide range of
materials including magnesium, copper, stainless steel, and aluminum. For more information or
assistance in selecting the appropriate probes, contact Prime Controls.
Calibration Considerations
The DS1510 offers three different modes of calibration.
1. Manual calibration on single and double thickness material (two-hit calibration). In this
mode, a sample of the nominal thickness is placed between the probes and the CAL push
button or optional external cal switch is pressed. Then a second thickness (or multiples of the
original) are placed between the probes and the CAL push button or external cal switch is
again pressed. Calibration is complete.
2. Manual calibration on single thickness steel (single-hit calibration). In this mode, calibration
can be initiated through a press of the CAL push button or an optional external cal switch
prior to material entering the gap between the probes. The DS1510 enters a wait state until
such time as material is fed between the probes. If the calibration delay parameter (Cd) is set
to zero, calibration occurs within 100 milliseconds after material is sensed between the
probes. For slow moving material, this delay can be increased (up to 9.9 seconds) to insure
the material fully covers the probes before calibration occurs. See the Control Module
Calibrate Pushbutton section earlier in this document for the parameter adjustment
procedure.
Connection Gap
Cable 0.5" to 1.25" 0.060 and thicker
Cable 0.5" to 0.75" 0.004 to 0.060 steel
5
Application