Switch (IPS200)
Question
Is the switch NEMA 4 rated?

Answer
No, it is not sealed any more than a typical gauge. A customer can install the switch in a NEMA enclosure if desired.

Question
Why do you have these thin individual wires coming off the switch? Why not use a cable?

Answer
The thin wires are necessary for preventing the internal elements from sticking. We are working on a cable alternative. Consult Engineering.

Question
What barrier do you recommend for intrinsic safety?

Answer
The installation sheet has the barrier parameters.

Question
Is the unit CE marked? If not, why?

Answer
No, and it might not be necessary for the following reasons. It has no electronic components other than a reed switch which is not sensitive to EMI interference. The part is inherently not affected by radiated fields, nor does it generate EMI fields. Additionally, it is usually utilized as a component as part of an overall system.


Transducer(HPT100):

Question
Can you do a 0-10V output?

Answer
We currently can offer the 0-10V as a special. Lead times might vary for this. Sufficient order quantity may be required.

Question
How can I order a "C" or "W" seal configuration?

Answer
Consult Engineering.

Question
Do you have ½"and 3/8" port models?

Answer
Yes - We have outline drawings showing these higher flow alternatives. A minimum order quantity may be required

Question
Can you do nickel or Hastelloy wetted surfaces?

Answer

Yes - Consult Engineering. A minimum order quantity may be required.

Question
Can I re-range a unit in the field or factory?

Answer
Only for changes in zero and FS of less than 5% of span. The units can be sent in here however for a re-range. It is not always possible to re-range, particularly if the starting range and ending range are too different.

Question
I'm just hooking up the unit for the first time. How does 4/20 mA. work with just two wires?

Answer
To hookup you need only two connection points. This may be a red wire and a black wire for a pigtail model. Consult our manual for detailed hookup information. In a 4/20 mA hookup, the pressure signal is converted to a current flow. You measure the change in current to read the pressure.

Question
I have a 4/20 mA unit. Why do I have more than two wires?

Answer
The additional wires beyond red and black are a case ground connection (green) which is optional and a drain wire(no insulation). The drain wire is also tied to our case. Ignore any other color wires. Consult the manual for more detailed information.

Question
I have a single ended unit. Can it be converted to a flow through type?

Answer
A welded T fitting can be used. Ametek can do this work or the customer can weld the T fitting.

Question
Can you make the pot access cover rotate 45° from normal position?

Answer
This is not recommended but can be accomplished in special cases. The factory should make any change here.

Question
Can you supply a 4000 psig range?

Answer
Yes, but the maximum overpressure is 4500 psig

Question
Does a Vac based unit cost more?

Answer
No, this is no problem for us.

Question
Can I convert a 4/20 mA unit to a 0-5V unit.

Answer
The factory can make this change.

Question
Can I change from a pigtail to a Bendix electrical termination?

Answer
Yes, if the customer stocks the alternative termination "head" and has had proper training. Be aware than any modification may void the warranty if performed incorrectly. Also, this is not permitted for Safety rated transducers. The factory can make this modification and it is recommended that the unit be sent here for modification.


Display(LPD100/110):

Question
Why can't you display my units with enough resolution?

Answer
Not all units can be displayed with enough resolution. The factory can advise on best calibration and display.

Question
Do you have a 0-5V display?

Answer
We do not have a standard product here but can do this as a special with adequate volume.

Question
Is the unit intrinsically safe?

Answer
No. Use of a display on an intrinsic safety rated transducer is also not permitted.

Question
Is the unit NEMA 4 rated?

Answer
No, it would have to be mounted in a suitable NEMA enclosure.

Question
The E option picture only shows one wire. Why?

Answer
There are really two cables coming from the back of the display. The data sheet view only shows one in that plane.

Question
Is the part CE marked?

Answer
No

Question
Can I use your display with someone else's transducer?

Answer
Generally yes, but the pigtail version is recommended. Certain limitation apply, so consult manuals.



Replacement of Electronic Circuit Boards:

The HPT 100 should provide reliable operation over an extended period of time. If you suspect the unit is inoperative, please refer to Section IV for information on using the Diagnostic Shunt to determine if your unit is working properly. Please replace the circuit board only if you determine that the board may be defective. Use of a conductive work table and wrist strap is required as the boards are static sensitive. Consult factory for proper training prior to performing field service. As any safety approvals are voided by modifications or non factory repairs to the HPT 100, return safety listed products to AMETEK for service. AMETEK is not responsible for improperly serviced units. Remove all power from the unit.

Open the threaded cover ring or conduit adapter near the top of the unit by turning in a counter clockwise direction.

Remove the Mil connector/filter assembly or pigtail/filter assembly by pulling out with your hand. Make a note of the original orientation of the filters as they must be replaced in the same location.

In most cases, the filter assembly will come out leaving the main board in place. If so, use a needle nose pliers and gently pull out the main board by pulling on the raised center tab at the top of the center of the board.

Note the location of the compensator board assembly. This component is a 14 pin DIP package connected to the main board with 14 gold pins. Before removing the compensator board, note the orientation of the part to assist in remounting to a new main circuit board assembly. Remove the compensator network using a DIP extractor to prevent bending pins.

Remount the compensator board noting the orientation into a spare circuit board assembly, (K574514 for 4/20 mA version or K574518 for 0-5 Vdc). Push compensator board all the way in, to provide clearance for the case to slide over it.

Observe the round case from the top and note the location of a welded key opposite to the pot access cover (this is employed in earlier style units). Note the flat on the round circuit board of the main circuit board assembly. Remount the assembly by placing the flat next to the key (when utilized) or in the original orientation (when not utilized) and insert the board assembly until the board snaps into the mating connector. This can be done with your finger.

Insert the Mil connector/filter assembly or pigtail/filter assembly by first noting the location of the indent adjacent to one threaded filter and on the underside of the assembly(when utilized) or by reference to original orientation. Note also the two holes in the round circuit board (three for voltage output units) which is part of the main circuit board assembly. For earlier style units, line the indent to the key welded to the case and carefully insert the Mil connector/filter assembly or pigtail/filter into the round board. For later style units rely on the orientation notes made during disassembly. Make sure the filter leads line up with the available mating holes on the round circuit board. Gently push in but do not force or you will bend the filter leads. Gently continue until mating is achieved.

Place the threaded cover ring or conduit adapter back on the top of the unit and turn clockwise to seal (do not apply excessive force or damage will result). Recalibrate the unit using the procedure outlined in Section IV. (field service calibration).