
®D155 Density Meter Instruction & Operation Manual
Version 1.1c – March 2017;
®Instrument Company
2139 High Tech Road •State College, PA •16803 •USA
Table of contents Page
1. Introduction............................................................................................................................................................... 2
1-1. Overview of the instrument ........................................................................................................................... 2
1-2. About the manual .......................................................................................................................................... 3
1-3. Safety symbols ..................................................................................................................................... 4
2. Preparations for measurement ................................................................................................................................... 7
2-1. Supplied parts with D155 .............................................................................................................................. 7
2-2. Installation and start-up ................................................................................................................................. 9
2-2-1. Power cable........................................................................................................................................ 9
2-2-2. Connecting the tube lines – D155 with Peristaltic Pump................................................................. 10
2-2-3. Connecting the tube lines – D155 without Pump ............................................................................ 10
2-3. Parts name and functions............................................................................................................................. 11
2-3-1. Outward appearance and configuration ........................................................................................... 11
2-3-2. Key functions (General description)................................................................................................ 13
2-3-3. LCD Display Layout........................................................................................................................ 14
2-4. Display during initialization ........................................................................................................................ 14
2-4-1. The initial display upon power up ................................................................................................... 14
2-4-2. Display during warm up period ....................................................................................................... 14
2-4-3. Display after warm-up ..................................................................................................................... 14
2-5. Preparation before measurements................................................................................................................ 15
3. Basic procedure....................................................................................................................................................... 16
3-1. Flow chart for the basic measuring procedure............................................................................................. 16
3-2. Factor calibration with pure water............................................................................................................... 17
3-3. Measuring procedure ................................................................................................................................... 20
3-4. Clean measuring cell after measurements ................................................................................................... 22
3-5. Procedure after a day’s measurements ........................................................................................................ 23
4. Menu Navigation..................................................................................................................................................... 24
4-1. Menu:1 View Stored Results....................................................................................................................... 24
4-2. Menu 2: Set Sampling Time........................................................................................................................ 25
4-3. Menu 3: Select Oil Table............................................................................................................................. 25
4-4. Menu 4: Set Test Temperature .................................................................................................................... 26
4-5. Menu 5: Set Date and Time......................................................................................................................... 26
4-6. Menu 6: Set LCD Contrast .......................................................................................................................... 27
4-7. Menu 7: Reset Test Number........................................................................................................................ 27
4-8. Menu 8: Clear Stored Results...................................................................................................................... 27
4-9. Menu 9: Export Stored Data to USB Drive................................................................................................. 28
4-10. Menu 10: View Serial No. & Firmware Ver. ............................................................................................ 29
4-11. Parameters and default .............................................................................................................................. 30
4-12. How to connect the optional printer or a personal computer (PC) ............................................................ 31