Emerson Micro Motion 7827 Product Data Download Page 7

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Micro Motion 7827 Digital Viscosity Meter

Materials of construction

Weight

Electrical

Wetted parts

Available in 316L Stainless steel, 304L Stainless steel, Alloy C22, Alloy B3, Alloy 400

Tine finish

Standard, electro-polished, or PFA laminated

(1)

finishes available

(1) PFA is applied only to the tines for its anti-stick properties not for corrosion protection.

Electronics enclosure

Short-stem version

Sand cast low copper alloy
Polyurethane paint finish

Long-stem version

Sand cast low copper alloy, or stainless steel
Polyurethane paint finish

Weight

Short-stem version
Long-stem version

14.8 lb (6.7 kg) typical

Dependent on stem length (contact factory)

Power supply requirement
(from signal converter)

23 to 27 VDC, 50 mA

Outputs

Viscosity and density
Temperature

Frequency
100 Ohms RTD (4 wire)

Electrical connection

Screw terminal, cable entry to suit ½” NPT gland (20 mm adaptor available)

Summary of Contents for Micro Motion 7827

Page 1: ...accuracy viscosity and density measurement Multi variable measurement of viscosity density and temperature Unique direct insertion design in lengths up to 13 ft 4 m Viscosity measurement up to 20 000 cP Greatest installation flexibility Continuous real time measurement in pipelines slipstreams and tanks Superior diagnostics and parameter calculations including referred viscosity and viscosity inde...

Page 2: ...sed on API and ASTM D341 standards With its multiple digital and analog communication connections PID control and alarm contacts the combination of the 7827 meter with the 7950 7951 signal converter allows you to manage complex process and control applications where on line measurements need to be referenced to laboratory conditions Advantages Fully integrated fit and forget digital viscosity and ...

Page 3: ...s the vibrating mass of the meter The change in vibrating mass then affects the resonant frequency Viscosity is a function of the bandwidth which is an indication of the damping associated with the liquid The following figure illustrates how the 7827 meter with a 7950 7951 signal converter uses the resonant frequencies at point A the lower 3 db point and at point B the upper 3 db point to digitall...

Page 4: ...tion sales office Raw frequency output electronics The 7827 digital viscosity meter is designed to operate with the Micro Motion Model 7950 and Model 7951 signal converters See 7950 7951 signal converter features below No field calibration required The 7827 digital viscosity meter is factory calibrated and no field calibration is required The calibration is traceable to UK National Standards throu...

Page 5: ...b ft3 Maximum Density Operating Range 0 to 3 g cc 0 to 187 28 lb ft3 Density Accuracy 0 001 g cc of reading 0 0624 lb ft3 Density Repeatability 0 0001 g cc 0 0062 lb ft3 Process Temperature Effect Corrected 1 1 Temperature effect is the maximum measurement offset due to process fluid temperature changing away from the factory calibration temperature 0 0001 g cc per C 0 1 k gm3 per C Process Ambien...

Page 6: ...mum operating pressure 1 1 Actual maximum operating pressures are limited by the process connection rating Short stem version Long stem version 3000 psi 207 bar 1450 psi 100 bar Test pressure Tested to 1 5 x the maximum operating pressure PED compliance Outside the scope of European directive 97 23 EC on Pressure Equipment ATEX ATEX approved Certification for use in Europe ATEX II2G Ex d IIC T4 CS...

Page 7: ...rosion protection Electronics enclosure Short stem version Sand cast low copper alloy Polyurethane paint finish Long stem version Sand cast low copper alloy or stainless steel Polyurethane paint finish Weight Short stem version Long stem version 14 8 lb 6 7 kg typical Dependent on stem length contact factory Power supply requirement from signal converter 23 to 27 VDC 50 mA Outputs Viscosity and de...

Page 8: ...nection details Flange connection details Dimensions in inches mm 4 9 125 4 5 5 140 4 3 109 Mounting to suit 1 5 Swagelok or similar cone 1 2 31 1 2 NPT both sides 4 8 121 0 5 12 1 38 35 Dimensions in inches mm 4 9 125 4 5 5 140 4 3 109 1 2 31 1 2 NPT both sides 4 8 121 0 5 12 1 38 35 ...

Page 9: ...ng hardware is customer specific and is not supplied 1 38 35 19 68 500 Stem lengths up to 13 ft 4 m are available as an ETO purchase 4 75 120 6 89 175 5 71 145 5 04 128 Pipe must be securely clamped in at least two places along this length Amplifier housing External Earth screw Lower nodal mass Long stem 1 5 SCH 80 tube Vibrating element Dimensions in inches mm Mounting hardware is customer specif...

Page 10: ...e Vibrating element Dimensions in inches mm 5 5 140 5 7 145 NPT 1 38 35 19 68 500 Stem lengths up to 13 ft 4 m are available as an ETO purchase Connection to pipeline Zone 0 area by means of a standardized industry flange for example DIN ANSI BS or JIS Limit ANSI 1500 equivalent 5 71 145 5 5 140 Amplifier housing External Earth screw Lower nodal mass Long stem 1 5 SCH 80 tube Vibrating element 4 7...

Page 11: ...onment for the short stemmed 7827 meters 7827 Long Stem Open tank installation example Closed tank installation example For open tank installations the long stemmed 7827 is clamped to a structure The position of the clamp determines the insertion depth For closed tank installations the long stemmed 7827 needs a factory fitted flange attachment To vary the insertion depth a standoff section with fl...

Page 12: ...nly 200 C H Frequency output ATEX II Ex d IIC T4 150 C T4 40 C Ta 110 C J Frequency output CSA C US Class 1 Div 1 Groups C D 160 C Code Amplifier enclosure Available with all stem length codes A Aluminium alloy T4 40 C Ta 110 C Available for stem length codes C or Z C Stainless steel Code Process connections Available with all stem length codes A 2 ANSI CL150 raised face RF flange EN1092 B 2 ANSI ...

Page 13: ... 10 to 12500 cP G 100 to 12500 cP Code Calibration type Available with all stem length codes A Free stream Z ETO calibration type Available only with stem length codes A or Z B 1 1 Available with calibration range B only 2 schedule 40 boundary 200 cP limit D 1 2 schedule 80 boundary 200 cP limit E 3 schedule 80 boundary H 1 2 1 2 schedule 40 boundary Code Factory Set B Reserved for future use Code...

Page 14: ...14 Micro Motion 7827 Digital Viscosity Meter ...

Page 15: ...Micro Motion 7827 Digital Viscosity Meter 15 ...

Page 16: ...by more than 750 000 meters installed worldwide and over 30 years of flow and density measurement experience 2013 Micro Motion Inc All rights reserved The Micro Motion and Emerson logos are trademarks and service marks of Emerson Electric Co Micro Motion ELITE MVD ProLink MVD Direct Connect and PlantWeb are marks of one of the Emerson Process Management family of companies All other trademarks are...

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