Vibration Type Liquid Density Meter DM8  Specifications Measuring Range: 0.5 to 2.0 g/cm3 Signal Output span: 0.05 to 0.5 g/cm3 Temperature Coefficient: 0 to 0.002 g/cm3/°C, (variable) Output Signal: Analog; 4 to 20 mA DC and 0 to 1 V DC Digital; via an RS-232C interface Repeatability (density): 5 X 10-4 g/cm3 (for digital output)  High Sensitivity and Stability based on the Principle of the Tuning Fork The natural frequency of a tuning fork is determined by its shape and material. If the tuning fork is hollowed out and filled with a liquid, the vibrating frequency is determined by the liquid's density. This is the operating principle of the Model DM8 vibration type liquid density meter. Measuring Liquid Temperature: -10 to 100°C Measuring Liquid Pressure: Up to 2MPaG or less Vibrator Material: Stainless steel (JIS SUS316) or nickel Ambient Temperature: -10 to 55°C Power Supply: 90 to 132 V AC or 180 to 264 V AC, 50/60 Hz 2-inch (50 mm) pipe (either horizontal or vertical) Mounting bracket (applicable with any mounting method to panels, walls or pipes) Mounting panel thickness Density signal Temperature signal Purge air outlet (with seal sheet) Temperature measuring element Electrical wiring port G3/4 Ø160 Wining port holes (27 mm dia., 5 holes (with closing rubber sheets)) Purge air inlet (RC1/8 female) Pick-up electrode 9 mm dia., holes or MB (ISO) screws, two places Panel cutout dimensions Wall mounting hole drilling dimensions Pipe mounting bracket For more detail, refer to GS12T3A1-E Piezo-electric element Vibrator cross sectional view Density Detector Vibration Type Liquid Density Meter  Features  High Sensitivity and Stability  Free Setting of Measuring Range in the Field Stable measurement can be performed in spite of high detecting sensitivity. The density meter is not affected by viscosity or flow. Measuring range, reference temperature, and the temperature coefficient of the measuring liquid can be set in the field.  One Touch Calibration with a Standard Calibrating Solution  Failure Alarm Display and Output Calibration work has been simplified to enable quick calibration by anyone. If the densities and temperature coefficients of zero and span standard calibrating solutions are set in advance, actual calibration can be performed by only pressing a Key after filling the meter with the standard calibrating solutions. Failures in the converter and/or detector are automatically detected by the self diagnosis function. Each error's indication is obtained, and their relay contact outputs are delivered.  Digital Output (via RS-232C interface) The meter can readily be connected to a supervisory computer since it is provided with digital (via RS-232C interface) as well as analog output (4 to 20 mA DC and 0 to 1 VDC).  Outdoor Installation of Converter The converter can be installed outdoors since it is provided with a dust and drip-proof construction. (However, it must be used only in non-explosion protected areas.) This allows the converter to be placed near the detector and facilitates calibration, checking, and adjustment. The meter can be mounted with any method on panels, walls and pipes. YOKOGAWA ELECTRIC CORPORATION World Headquarters 9-32 Nakacho 2-chome, Musashino-shi, Tokyo 180-8750, JAPAN Tel: +81-422-52-6316 Fax: +81-422-52-6619 http://www.yokogawa.com/an/ North America YOKOGAWA CORPORATION OF AMERICA Georgia, U.S.A http://www.yokogawa.com/us/ South America YOKOGAWA AMERICA DO SUL LTDA. BRAZIL http://www.yokogawa.com.br/ Europe YOKOGAWA EUROPE B.V. European Headquarters THE NETHERLANDS http://www.yokogawa.com/eu/ YOKOGAWA ELECTRIC CIS LTD. RUSSIAN FEDERATION http://www.yokogawa.ru/ Middle East India YOKOGAWA MIDDLE EAST B.S.C.(C) YOKOGAWA INDIA LTD. http://www.yokogawa.com/bh/ http://www.yokogawa.com/in/ Singapore Australia YOKOGAWA ENGINEERING ASIA PTE. LTD. YOKOGAWA AUSTRALIA PTY. LTD. http://www.yokogawa.com/sg/ http://www.yokogawa.com/au/ Korea YOKOGAWA ELECTRIC KOREA CO., LTD. http://www.yokogawa.com/kr/ China YOKOGAWA CHINA CO., LTD. http://www.yokogawa.com/cn/ Represented YOKOGAWA SHANGHAI INSTRUMENTATION CO., LTD. http://www.ysi.com.cn/ YOKOGAWA SICHUAN INSTRUMENT CO., LTD. http://www.cys.com.cn/ Taiwan YOKOGAWA TAIWAN CORPORATION http://www.yokogawa.com.tw/ Subject to change without notice. All Rights Reserved, Copyright c 2008, Yokogawa Electric Corporation.

Easier to Use Density Meter With a Built-in Microprocessor and Featuring Direct Digital Conversion to Density. Operations shown in the table to the right can be performed by selecting a mode with the mode selector switch and designating a Function No. MODE SW Set up: STD solution 1 density Set up: STD solution 1 ref. Temp. Set up: STD solution 1 temp. coef. Start: Push SET Key Set up: STD solution 2 density Set up: STD solution 2 ref. Temp. Set up: STD solution 2 temp. coef. Start: Push SET Key  Caustic soda (NaOH) solution (Chemical industry, reaction process) (Soda industry, product control)...

Vibration Type Liquid Density Meter DM8  Specifications Measuring Range: 0.5 to 2.0 g/cm3 Signal Output span: 0.05 to 0.5 g/cm3 Temperature Coefficient: 0 to 0.002 g/cm3/°C, (variable) Output Signal: Analog; 4 to 20 mA DC and 0 to 1 V DC Digital; via an RS-232C interface Repeatability (density): 5 X 10-4 g/cm3 (for digital output)  High Sensitivity and Stability based on the Principle of the Tuning Fork The natural frequency of a tuning fork is determined by its shape and material. If the tuning fork is hollowed out and filled with a liquid, the vibrating frequency is determined by the liquid's...

Easier to Use Density Meter With a Built-in Microprocessor and Featuring Direct Digital Conversion to Density. Operations shown in the table to the right can be performed by selecting a mode with the mode selector switch and designating a Function No. MODE SW Set up: STD solution 1 density Set up: STD solution 1 ref. Temp. Set up: STD solution 1 temp. coef. Start: Push SET Key Set up: STD solution 2 density Set up: STD solution 2 ref. Temp. Set up: STD solution 2 temp. coef. Start: Push SET Key  Caustic soda (NaOH) solution (Chemical industry, reaction process) (Soda industry, product control)...