hi

i'm asking how to simulate for preloop from the field to Process Interface Bldg. (PIB) or DCS this instrument: the tools we been use was Hart Communicator 375, LC 100 Martel, Druck 300 DPI603, Ametek 7975 Hand pump, megger, TK3 and can you give a drawing the typical setup of each instrument to calibrator to simulate the preloop? i'm appreciate those who will help me. and how to use the calibrator to simulate the instrument?

H2s gas detector
combustible Gas Detector
Corrosion XMTR and Access Fitting CM, BEACONS, HORN

TRANSMITTER HART / ANALOG - Corrosion Transmitter
DP Flow Transmitter w/ ventury, Rotameter Transmitter, Analyzer Indicator Transmitter, Agar Level Transmitter, Vibration Transmitter, Intensity Current Transmitter, Magnetic Flow Meter, Remote Level Indicator, Remote Temperature Indicator, Temperature Indicator Transmitter, Analyzer Indicator Transmitter, Agar Level Transmitter, DP Level Indicator Transmitter, Vibration Transmitter, DP Level Indicator Transmitter, Temperature Indicator Transmitter

TRANSMITTER FIELDBUS
Corrission Transmitter Fieldbus
DP Flow Transmitter w/ ventury Fieldbus
Rotameter Transmitter Fieldbus
DP Level Indicator Transmitter Fieldbus
Guide Wave Radar Level Transmitter Fieldbus
Analyzer Indicator Transmitter Fieldbus
Agar Level Transmitter Fieldbus
Vibration Transmitter Fieldbus - FFVMS Trend master 2000/ Velocity Seismo Probe
Intensity Current Transmitter
Magnetic Flow Meter Fieldbus
Remote Level Indicator Fieldbus
Remote Temperature Indicator Fieldbus
Temperature Indicator Transmitter Fieldbus
Analyzer Indicator Transmitter Fieldbus
Agar Level Transmitter Fieldbus
DP Level Indicator Transmitter Fieldbus
Vibration Transmitter Fieldbus
Temperature Indicator Transmitter Fieldbus
Thermocouple Temperature Transmitter
RTD Temperature Transmitter

CONTROL VALVE
ON OFF Deluge Valve
Level control valve Fieldbus
Hand Control Valve Fieldbus
Temperature Control valve Fieldbus
Pressure Control Valve Fieldbus
Level Control Valve Fieldbus
MOV FF
AOV FF

SWITCH
Pressure Switch
Level Switch
Temperature switch
Flow Switch
Pig tail

 

Dear aalbin,

I hope that following link will help and assist you to learn mentioned test instrument:

1. Hart Communicator 375

http://www2.emersonprocess.com/site...oductReferenceAndGuides/375_ru_usermanual.pdf

2. LC 100 Martel

http://www.martelcalibrators.com/LC-110&110H_DataSheet_HR.pdf

3. Druck 300 DPI603

http://www.catrents.ca/Products/Equ...ownloads/Druck_DPI603_Pressure_Calibrator.pdf

4. Ametek 7975

http://www.instrumart.com/assets/Ametek-MGC_manual.pdf

5. Megger

http://www.ge-mcs.com/download/sensors-and-transducers/141580.pdf

6. T3K

http://www.ge-mcs.com/download/sensors-and-transducers/141580.pdf


Please learn those documents first, try at field and if you still have anything to discuss please post here, experts here will glad to explain more deeply.

Hope this help

Regards
Aan

 

hi

we are now loop testing a vibration what is the procedure for using tk3 bentley nevada? what is the setup?

thank you

 

During loop check you check the integrity of the 4-20 mA loop and the indication in the DCS

The reason for the loop check of each signal associated with each device is to ensure that:
- Validate that each signal of the device is really connected to the correct terminals and that each and every signal associated with the device is wired correctly through the terminals in the field junction box, to the field termination assembly in the marshalling cabinet, to the I/O card and to the correct tag in the DCS database

- Validate that each signal of the device is not limited in the high end for example due to high resistance caused by poor connection or corrosion on terminal at the device or field junction box

- Validate that each signal of the device is not biased due to a ground loop current caused by water or moisture in the device housing

- Validate that there are no non-linear elements in the current loops for each signal of the device such as signal conditioner or safety barrier with problem

- Validate that the ranging in the DCS for each signal is correct so that the correct engineering unit value is displayed

Loop check for each signal of a transmitter is done by simulating 4/8/12/16/20 mA corresponding 0/25/50/75/100% reading. For instance, if the range is 0-800 kPa, simulating 4/8/12/16/20 mA should result in a display of 0/200/400/600/800 kPa in the DCS.

For FOUNDATION fieldbus
- You will know that the device is connected to the correct terminals because the device automatically appears in the system "live list" displayed with device tag, manufacturer, model number, unique identifier and version etc. This is true also for discrete devices like intelligent two-wire on/off valves and electric actuators / motor operated valves (MOV). All the signals associated with that device automatically become correct so you only check the devices is there, you don't have to check signal by signal.

- A digital signal value cannot be limited, biased, non-linear or otherwise distorted without being detected. Therefore a 5-point loop check of each signal is not required. Instead use a portable fieldbus tester like Relcom FBT-6 to verify device supply voltage, signal level, and noise level are within limits thus detecting any wiring issues or water ingress etc.

Cheers,
Jonas