Active and Passive Instruments

There are two types of field instruments available in this world according to the condition of how they send the signal, active and passive instruments. Planning and Selecting the proper field instrument will affect the project schedule and the smoothness of construction execution. Mistakes in understanding the field instrument type will result in the signal (…)

Mimic Panel : What is this

Mimic Panel is one of the forms of human machine interface (HMI). Rather than an HMI Led monitor that is made by using software and program then display the mimic of the plant on the screen of LED/ LCD monitor, the mimic panel is made by using hardware and graphical interface printed on the enclosure/ (…)

Annunciator Panel

An annunciator panel is a device consist of a grouped alarm indicator. Usually, it is installed on the door of PLC Panel or it may have a dedicated enclosure. In the process control, it is now rare to use an annunciator panel as an alarm indicator system because it is replaced by graphical HMI Monitors. (…)

Instrument Junction Box

The instrument junction box has a high role in the scope of instrumentation work. this junction box has several functions, namely for enclosure of terminal strips and enclosure of instruments (power supply and other electrical devices). A simple instrument junction box only contains terminal strips to connect cables and is needed for connecting several cables (…)

Pressure Switch Connection Guide: Hook Up Drawing and MTO

Pressure switch connection guide to connect the circuits or the cables to the terminals so that it can perform as needed. Here, the case is using explosion proof pressure switch from Neo-Dyn, by using an example, we will show you what bulk materials needed and the hook up then finally the pressure switch connection. For (…)

Megger Test Motor: Why and How We need to do

Megger test motor is a test that held to the motor winding. Megger test is actually the insulation test, many people call this test as “Megger Test” because many testers use brand Megger. Even so, actually, you can use insulation testers with other brands, there are many brands available on the market. Back to the megger (…)

Instrument Specification Document

Instrument specification is one of the instrument deliverable documents. some of you may think why it is there while there is instrument data sheet that is more directly point to a device that you want to install to your project. This is important to know the philosophy of engineering sequence or life cycle. Especially if (…)

Instrument Hook Up Drawing Autocad

You can download the sample of instrument hook up drawing autocad below. The hook up drawing is a deliverable document that showing the sequence of parts with technical considerations for specific installation of field instruments. For example when installing DP Transmitter, the pressure tapping shall be taken on side or top of pipe with consideration (…)

Instrument Cable Block Diagram

Instrument cable block diagram is a drawing document that presenting the simple interconnection between every devices such as field instruments to junction box and junction box to marshalling cabinet or panel and even between panel to panel. The document form is drawing that showing the field instrument tag number, cable number, junction box number and (…)

Cable Insulation Resistance Test Values

There is a standard that we can use as a refference for cable insulation resistance test values. The values are approved for international use because these values are from International Electrical Testing Association. The cable insulation resistance test values give us refference when the insulation of cables is good or not, more than that usually (…)