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Jurnal Pengelolaan Laboratorium Pendidikan
Published by Universitas Diponegoro
ISSN : -     EISSN : 2654251X     DOI : -
Core Subject : Education,
Education
Jurnal Pengelolaan Laboratorium Pendidikan (JPLP, e-ISSN: 2654-251X) adalah jurnal yang bertujuan mewadahi semua informasi karya ilmiah hasil penelitian, telaah pustaka, makalah teknis, dan kajian buku, dari bidang Pengelolaan Laboratorium. JPLP diterbitkan oleh Persatuan Pranata Laboratorium Pendidikan Universitas Diponegoro. JPLP terbit dua nomor pertahun pada bulan Januari dan Juli.
Arjuna Subject : -
Articles 110 Documents
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Metode Penyimpanan Bakteri Xanthomonas Oryzae pv. oryzae Penyebab Penyakit Hawar Daun Bakteri Pada Tanaman Padi Menggunakan Glycerol Santi Sariasih; Fitri Widiantini; Wiwin Widiawati
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 2, No. 1, Januari 2020
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.002 KB) | DOI: 10.14710/jplp.2.1.1-7

Abstract

The existence of Xanthomonas oryzae pv. oryzae, the bacteria which causes Bacterial Leaf Blight of rice, is really necessary for the laboratory to support the research activities of the phytopathology experts. Long-term preservation by using glycerol under -20°C can be conducted to preserve the culture’s availability to stay viable in the laboratory. This research aimed to determine the glycerol concentration that is able to preserve the viability and pathogenicity of Xanthomonas oryzae pv. oryzae bacteria after being preserved for 3 and 6 months. This experiments were performed using Completely Randomized Design which comprised of six treatments and four replications, they were: glycerol 50%, 40%, 30%, 20%, 10%, and control (without glycerol). The results of this study showed that viability of Xanthomonas oryzae pv. oryzae that was preserved within 20% glycerol solution for 6 months was different compared to control group. The number of Xanthomonas oryzae pv. oryzae bacteria on 20% glycerol was 4,49 x 109 CFU/ml, while on control group was 1,76 x 109 CFU/ml. 20% glycerol concentration had significant effect on the Bacterial Leaf Blight symptoms’ length after 6-months preservation that observed on the 7th day after incubation. The Bacterial Leaf Blight symptoms’ length on 20% glycerol treatment group was 46,2 mm and 22,7 mm on control group. Meanwhile for the 3 months preservation, the administration of glycerol did not show any significant effect on the Xanthomonas oryzae pv. oryzae’s viability and the Bacterial Leaf Blight symptoms’ length.   
Rancang Bangun Mesin Laser Engraver and Cutter Untuk Membuat Kemasan Modul Praktikum Berbahan Akrilik Aris Eko Saputro; Mochammad Darwis
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 2, No. 1, Januari 2020
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1090.106 KB) | DOI: 10.14710/jplp.2.1.40-50

Abstract

In the competence of vocational institution, lecturers, students and PLP staff are expected to make their own appropriate equipment. An educational laboratory as a place to provide adequate practice and supporting equipments. Equipment or innovations that are designed must be packaged in an attractive form as a prototype of a product. As for the research and or as a practical tool in the laboratory. The packaging also serves to protect the device made and increase its life time. Usually the material used to make a casing material is acrylic. The thicker the acrylic, the more difficult it is to make. Laser engraver or laser cutter as a solution to facilitate the manufacture of casings that made from acrylic. User will create a two-dimensional design using a program, such as Inkscape. Then the design is saved or changed into gcode. The resulting gcode file is then sent to the laser engraver to make the design. The power of the laser head used, will determine the thickness of the acrylic to be cut. In this research, 2 mm thick acrylic was tested using a 15W laser diode module.
Penambahan Fitur Tampilan LCD dan Micro SD Card Reader pada mesin Laser Engraver and Cutter di Laboratorium Pengemudian Listrik Mochammad Darwis
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 2, No. 1, Januari 2020
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1075.303 KB) | DOI: 10.14710/jplp.2.1.8-18

Abstract

Laser engraver and cutter machine that have been made in previous research, can only be controlled by a computer. The addition of LCD display and Card Reader will make it work alone without using a computer (offline). Card reader is used to read gcode files from 2-dimensional design that have been made on a computer. LCD display is used to display a menu or a list of existing settings, the percentage of loading data from a gcode file and displays the 2-dimensional design of the gcode file. To move the menu on the LCD display an encoder switch is used. This additional feature was created using a microcontroller  STM32F1  type as a core control system which performs serial  communication  with a laser  machine.  32 bit ARM  microcontroller  is used because  a lot of tasks  has to perform. It must be able to read data from the SD card, display the image form from the gcode file and send it to the laser machine. Compared 3 types of gcode file of different file sizes and the speed of loading the data. The laser machine can perform its function by using the controls of the additional feature modules that have been made.
Penanganan berbagai Tingkat Kelengketan pada Alat gelas di Laboratorium dari Pengaruh Basa kuat Larutan NaOH beserta Ujinya Sri Harjanto; Indra Gunawan
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 2, No. 1, Januari 2020
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.345 KB) | DOI: 10.14710/jplp.2.1.19-25

Abstract

As PLP (Educational Laboratory Institution) or other laboratory personnel for their daily work, they are very closely related to the tools and materials in the laboratory scope, and cannot be separated from laboratory equipment in the form of instruments or glassware. The problem here is that there are times when we encounter glassware in the scope of a laboratory whose faucet is closed or the faucet cannot be opened because it is sticky, and on average it is used after using NaOH base solution. That is why we are here to try to do a test to find out how much the stickiness of a device made from glass raw materials. By using variable various levels of concentration of NaOH solution with different time periods. As a decay the detergent solution is also used in various levels of concentration and heating. . From the data of the stickiness level test results using variable concentrations of NaOH solution and detergent solution will get the results that with the increasing concentration of NaOH solution, the stickiness will also be stronger. Likewise with the passage of time the longer the NaOH solution comes into contact with materials made of glass, the harder it will become and the stickiness will also be stronger so that it will be more difficult to be released. while on a strong adhesiveness will be more effective when using the immersion method at a temperature of 60-70 ° C.
Pengolahan dan Pemanfaatan Limpahan Air Sungai Sahang sebagai Air Bersih Untuk Keperluan Laboratorium Teknik Kimia Jurusan Teknik Kimia Politeknik Negeri Sriwijaya Ahmad Bustomi
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 2, No. 2, Juli 2020
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.2.2.80-88

Abstract

Clean water is the primary need of living things because water plays an important role in the process of life. The quality of raw water from various sources has different quality and quantity characteristics, which means that not all regions have a clean water supply that can be processed into water suitable for consumption in accordance with clean water standards that meet clean water requirements. Therefore, in processing and utilizing overflow of Sahang River water, the WTP (Water Treatment Plant) system is to remove metals, organic substances and bacteria in accordance with clean water quality standards of the Ministry of Health of the Republic of Indonesia. The stages in the processing and utilization of the Sahang River water overflow are preliminary analysis of samples in the intake, sedimentation and reservoir tanks. Then to ensure the results of processing and utilization of the Sahang river water overflow, we took a comparative sample, namely PDAM Tirta Musi Palembang water. Analysis of physical, chemical and biological parameters. In the analysis test, the physical parameters of clean water include temperature, color, turbidity, dissolved solids (TDS), smell and taste. In the analysis of clean water chemical parameters, including pH, hardness, chloride, organic substances, ammonia, sulfate, nitrite, nitrate, chromium, cadmium, iron, manganese, copper, aluminum, zinc and lead. Meanwhile, the biological parameter analysis test includes the analysis of E-Coli bacteria. The results of the water quality analysis test for WTP (Water Treatment Plant) have been proven to comply with SNI quality standards for clean water with the optimum results obtained in the addition of a coagulant with a concentration of 75 ppm. However, there are parameters that have decreased and increased levels in each type of parameter such as parameters Turbidity (4.27 NTU), pH (7.01), TDS (24.1 ppm), NaCl (49.7 ppm), DO ( 6.95 ppm), Conducto (1.6211 µs) and hardness (13.29 ppm), but it is still within the standard of clean water quality, which means that the Water Treatment Plant (WTP) system is proven to be implemented especially for water purposes. Laboratory of the Department of Chemical Engineering, State Polytechnic of Sriwijaya and generally for the needs of the community at an economical price and good quality
Managemen Pengelolaan Alat dan Bahan di Laboratorium Mikrobiologi Indra Gunawan
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 1, No. 1, Januari 2019
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.1.1.19-25

Abstract

Laboratory is one of the important facilities in the teaching and learning process, as a place to study or as a source of learning, laboratories must have a comfortable and safe nature. A laboratory that is comfortable means that the needs or needs to carry out activities are available in the appropriate place or are easily accessible if used and used. Whereas laboratories that are safe means that all storage of hazardous materials and dangerous activities has been prepared and anticipated. Laboratory management will run more effectively if the laboratory structure is supported by elements including the head / head of the laboratory, practicum coordinator, Education Laboratory/ Technician / Laboran / Analyst staff and laboratory staffThe purpose of laboratory management is to create an atmosphere of microbiology laboratories, especially those that are comfortable and safe for users which include students, researchers and visitors to the laboratory and staff who manage the laboratory. The method used is quantitative based on literature studies (metaanalisis). Framework for meta-analysis concepts based on the determination of layout and space, management of tools and materials, order and laboratory safetyIt is expected that the implementation of good management in the laboratory will create a safe and comfortable laboratory atmosphere. Based on the results above, it can be concluded that there is a relationship between management and good governance with a safe and comfortable atmosphere for users and laboratory managers.
Rancang Bangun Modul Pembangkit Listrik Tenaga Surya (PLTS) Sistem Off-grid Sebagai Alat Penunjang Praktikum Di Laboratorium Muhammad Syahwil; Nasrudin Kadir
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 3, No. 1, Januari 2021
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.3.1.26-35

Abstract

This study aims to design and manufacture a practical module for a small-scale off-grid solar power system with a power capacity of 320Wp. This module consists of the main components of an off-grid type solar power system such as solar panels, Solar Charger Controller (SCC), batteries, inverters, ac/dc loads and power meter measuring instruments integrated in one module. The method used is laboratory research methods and literature study. The literature study method is to look for literature related to solar power plant as a support in making modules and laboratory methods, namely testing modules/ systems with certain conditions. Stages This research method includes identification of problems in the laboratory, literature study, design/layout of the PLTS module, determining the type and analysis of the capacity of solar panels, SCC, inverters and batteries, supplying materials/components, manufacturing modules, and testing modules in the laboratory. The output and benefits of this research are getting a practical module for the solar power plant system which makes it easier for students to understand the working principles of the PLTS system; also to optimize practicum activities in the laboratory. From the results of testing, measurement, and data analysis that have been carried out by the off-grid solar power plant (PLTS) module that has been made to function properly and works in accordance with the principle of the off-grid PLTS system, generating electricity according to the capacity of the solar panel, The solar charge controller works in accordance with its function to regulate charge and discharge of battery storage and the inverter is able to serve the load according to its capacity so that this module is ready to be used as a practical module in learning activities in the laboratory.
Rancang Bangun Aplikasi Jam Tangan Pranata Laboratorium Pendidikan dengan Kemampuan Waterpas Tiga Dimensi untuk Mengatur Sambungan Modul Uji Pembebanan Motor Mochammad Darwis; Aris Eko Saputro
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 2, No. 2, Juli 2020
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.2.2.89-100

Abstract

When testing the loading of an electric machine, we often experience problems in finding a tool to see the precision of the connection between the shaft of an electric machine. Shaft connections that are not straight and not right in the middle can damage the shaft of the rotating engine and the engine being rotated. This research is the development of previous research that uses Android phone as a tool. By reading the value of the orientation sensor on an android phone, we can measure the angle of rotation on the x, y and z axes. The Watpasdroid application will display the value on each axis. This application has also been used in the Electric Driving Laboratory at the Surabaya State Electronic Polytechnic (PENS), to check the connection (coupling) between an electric motor and a magnetic load (dynamo meter). The size of a cellphone that is still too large is sometimes become a problem  if the surface being measured is narrow. So we uses a wristband-shaped watch module that already has a gyro sensor and can be programmed according to our need. The size is almost 1/12 of ordinary cellphones. The M5Stick-C module is used to compare the gyro reading value displayed by the wristband. To test the quality of motor joint which  flatness checks have been assisted by using a wristband, a thermal observation camera is used. This application, does not rule out, can be used in other laboratories for the purpose of checking the plane levelness or equality in two dimensions or three dimensions.
Penggunaan Bahan Inkonvensional Sebagai Sumber Bahan Pakan Isharyudono, Kelik; Mar'ah, Isna; Jufriyah, J
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 1, No. 1, Januari 2019
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.1.1.1-6

Abstract

The availability of commonly used feed ingredients currently decreases production. This is due to the limited land that has begun to be degraded so that agricultural yields also decline. For this reason, it is necessary to look for other alternatives from the source of raw materials for feed in addition to common ingredients. The use of alternative (unconventional) feed ingredients is constrained by the limited data from the analysis of its chemical composition. In this study a table of feed ingredients composition has not been listed in the table of pre-existing feed composition. The aim is to provide information to the public about the content of unconventional materials that do not yet exist in the composition table. Thus it can be a reference to be used as a constituent component of rations. The test method used is the proximate analysis of the Weendee method. The test parameters included water content, ash content, crude fat content, crude fiber content and crude protein content. From the results of this study, several conventional materials have not been included in the composition table.
Identifikasi Bahaya dan Risk Assessment: Penerapan Keselamatan dan Kesehatan Kerja di Laboratorium Desy Indarwati
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 2, No. 2, Juli 2020
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.2.2.51-57

Abstract

Risk Assessment is systematic way of carrying out activities in laboratory, identifying the potential emergence of hazards and other worst possibility, and also the decisions to control and prevent the accidents. This research is a qualitative descriptive research with a case study method.  Data obtained through observation, interview, and study documents at Laboratory of Tarbiyah Faculty UIN Sunan Ampel Surabaya. The purpose of this study is to provide an understanding for laboratory users about the importance of implementing occupational safety and health in the laboratory. The result show that there were 14 potential hazards that arose which were divided into four variables, they are handling and storage of materials, design of workshop/laboratory, Facilities, and activities in laboratory. Risk assessment result of 14 potential hazards found that, 43% are low risk, 14% are moderate risk, 43% are high risk, and 0% are extreme risk. The effort to implementing occupational health and safety (K3) have not been fully carried out optimally. To control or push down the potential of hazards are (1) Arranging SOP for implementation of K3, (2) provide Material Safety Data Sheet (MSDS), (3) maximize utilization of personal protective equipment, (4) provide enough first aid and eyewash, (5) provide fire extinguishers (APAR).

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