Endress+Hauser dosimass Manual

The compact sensor with an ultra-compact transmitter
Application
• Measuring principle operates independently of physical fluid
properties such as viscosity or density
• Measurement of liquids in continuous process control and in
batching applications
Device properties
• Nominal diameter: DN 8 to 25 (³⁄₈ to 1")
• Many hygienic process connections, 3A‐compliant
• Sensor can be cleaned/sterilized in place (CIP/SIP)
• Robust, ultra-compact transmitter housing
• Pulse/frequency/switch output, Modbus RS485
• Excellent and easy-to-clean transmitter
Your benefits
• High process safety – high measuring accuracy for different
media in shortest filling time
• Fewer process measuring points – multivariable
measurement (flow, density, temperature)
• Space‐saving installation – no in/outlet run needs
• Versatile and time‐saving wiring – plug connector
• Fast commissioning – pre-configured devices
• Automatic recovery of data for servicing
Products Solutions Services
Technical Information
Dosimass
Coriolis flowmeter
TI00065D/06/EN/16.15
71291606

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Table of contents
Document information ....................... 3
Symbols used ................................ 3
Function and system design ................... 4
Measuring principle ............................ 4
Measuring system ............................. 4
Equipment architecture ......................... 5
Safety ..................................... 6
Input ..................................... 7
Measured variable ............................. 7
Measuring range .............................. 7
Operable flow range ........................... 7
Input signal ................................. 7
Output ................................... 8
Output signal ................................ 8
Signal on alarm ............................... 9
Low flow cut off .............................. 9
Galvanic isolation ............................. 9
Protocol-specific data .......................... 10
Power supply ............................. 10
Terminal assignment .......................... 10
Pin assignment, device plug ...................... 11
Supply voltage .............................. 14
Power consumption ........................... 14
Current consumption .......................... 14
Power supply failure .......................... 14
Electrical connection .......................... 14
Potential equalization ......................... 15
Cable specification ............................ 15
Performance characteristics .................. 15
Reference operating conditions ................... 15
Maximum measured error ....................... 15
Repeatability ............................... 17
Response time .............................. 17
Influence of ambient temperature ................. 17
Influence of medium temperature .................. 17
Influence of medium pressure .................... 17
Installation ............................... 17
Mounting location ............................ 17
Orientation ................................ 18
Inlet and outlet runs .......................... 20
Special mounting instructions .................... 20
Environment .............................. 21
Ambient temperature range ..................... 21
Storage temperature .......................... 22
Degree of protection .......................... 22
Shock resistance ............................. 22
Vibration resistance ........................... 22
Interior cleaning ............................. 22
Electromagnetic compatibility (EMC) ............... 22
Process .................................. 22
Medium temperature range ...................... 22
Medium pressure range (nominal pressure) ........... 22
Density ................................... 22
Pressure-temperature ratings .................... 22
Secondary containment pressure rating .............. 24
Flow limit ................................. 24
Pressure loss ............................... 24
Heating ................................... 24
Vibrations ................................. 24
Mechanical construction .................... 25
Dimensions in SI units ......................... 25
Dimensions in US units ......................... 29
Weight ................................... 32
Materials .................................. 32
Process connections ........................... 32
Operability ............................... 33
Local operation .............................. 33
Remote operation ............................ 33
Certificates and approvals ................... 33
CE mark ................................... 33
C-Tick symbol ............................... 34
Ex approval ................................ 34
Hygienic compatibility ......................... 34
Pressure Equipment Directive .................... 34
Other standards and guidelines ................... 34
Ordering information ....................... 35
Accessories ............................... 35
Communication-specific accessories ................ 35
Service-specific accessories ...................... 35
Supplementary documentation ............... 36
Standard documentation ........................ 36
Supplementary device-dependent documentation ....... 37
Registered trademarks ...................... 37

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Document information
Symbols used Electrical symbols
Symbol Meaning Symbol Meaning
Direct current Alternating current
Direct current and alternating current Ground connection
A grounded terminal which, as far as
the operator is concerned, is
grounded via a grounding system.
Protective ground connection
A terminal which must be connected
to ground prior to establishing any
other connections.
Equipotential connection
A connection that has to be connected
to the plant grounding system: This
may be a potential equalization line
or a star grounding system depending
on national or company codes of
practice.
Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
Reference to page
Reference to graphic
Visual inspection
Symbols in graphics
Symbol Meaning Symbol Meaning
1, 2, 3,... Item numbers
,… ,
Series of steps
A, B, C, ... Views A-A, B-B, C-C, ... Sections
-
Hazardous area
.
Safe area (non-hazardous area)
Flow direction

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Function and system design
Measuring principle The measuring principle is based on the controlled generation of Coriolis forces. These forces are
always present in a system when both translational and rotational movements are superimposed.
Fc = 2 · ∆m (ν · ω)
Fc = Coriolis force
∆m = moving mass
ω = rotational velocity
ν = radial velocity in rotating or oscillating system
The amplitude of the Coriolis force depends on the moving mass ∆m, its velocity ν in the system and
thus on the mass flow. Instead of a constant rotational velocity ω, the sensor uses oscillation.
In the sensor, two parallel measuring tubes containing flowing fluid oscillate in antiphase, acting like
a tuning fork. The Coriolis forces produced at the measuring tubes cause a phase shift in the tube
oscillations (see illustration):
• At zero flow (when the fluid is at a standstill) the two tubes oscillate in phase (1).
• Mass flow causes deceleration of the oscillation at the inlet of the tubes (2) and acceleration at the
outlet (3).
1 2 3
A0016771
The phase difference (A-B) increases with increasing mass flow. Electrodynamic sensors register the
tube oscillations at the inlet and outlet. System balance is ensured by the antiphase oscillation of the
two measuring tubes. The measuring principle operates independently of temperature, pressure,
viscosity, conductivity and flow profile.
Density measurement
The measuring tube is continuously excited at its resonance frequency. A change in the mass and
thus the density of the oscillating system (comprising measuring tube and fluid) results in a
corresponding, automatic adjustment in the oscillation frequency. Resonance frequency is thus a
function of medium density. The microprocessor utilizes this relationship to obtain a density signal.
Temperature measurement
The temperature of the measuring tube is determined in order to calculate the compensation factor
due to temperature effects. This signal corresponds to the process temperature and is also available
as an output signal.
Measuring system The device consists of a transmitter and a sensor.
The device is available as a compact version:
The transmitter and sensor form a mechanical unit.

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Transmitter
• Materials:
– Transmitter housing: stainless steel 1.4308 (304)
– Housing seal: EPDM
• Configuration:
Via operating tools (e.g. FieldCare)
Sensor
• Range of nominal diameter: DN 8 (³⁄₈"), 15 (½"), 25 (1")
• Materials:
– Sensor housing: stainless steel 1.4301 (304)
– Measuring tube: stainless steel 1.4539 (904L)
– Process connections: stainless steel 1.4404 (316/316L) and 1.4435
(316L)
Equipment architecture Device version: Two pulse/frequency/switch outputs
The device version has two pulse/frequency/switch outputs →  10.
4
1
2
3
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 1 Options for integration into a system for batching processes
1 Pulse/frequency/current output 1
2 Pulse/frequency/current output 2
3 Automation system (e.g. PLC)
4 Control of valve (by automation system)
Device version: Modbus RS485, one or two switch outputs (Batch) and one status input
Device versions with MODBUS RS485 have one or two switch outputs for valve control for the
regulation of batching processes→  10.

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1
2
3
A0026621
 2 Options for integration into a system for batching processes
1 MODBUS RS485: Measured value (to the automation system)
2 Status input: Control of batching process (by the automation system)
3 Automation system (e.g. PLC)
4 Switch output 1 (batch): valve control, level 1
5 Switch output 2 (batch): valve control, level 2
Integrated batching functions
The following parameters can be used to configure and monitor batching processes.
Configuration
• Measured variable: mass or volume flow
• Unit
• Batch quantity
• Fixed compensation quantity
• Select batch profile
• Drip correction mode: Off, low flow cut off or fixed time
• Measuring time drip quantity
• Filter depth drip median (3, 5 or 7)
• Average drip correction quantity
• Batch levels: One-level, two-level or one-level and blow out
• Start and stop level 2
• Blow out delay and duration
• Maximum batch time
• Maximum flow
• Disable time pressure shock suppression
Display
• Total amount measured from last batching process (incl. drip quantity)
• Duration of last batching process (incl. measurement of drip quantity)
• Switch-off time: From time of switch-off to when measurement of the drip quantity is complete
• Current drip correction quantity (drip correction quantity for next batching process)
• Sum of all batching processes measured
• Number of batching processes.
The batching process (start batch, stop batch etc.) is controlled by the automation system via
the status input or the Modbus RS485 .
Safety IT security
We only provide a warranty if the device is installed and used as described in the Operating
Instructions. The device is equipped with security mechanisms to protect it against any inadvertent
changes to the device settings.
IT security measures in line with operators' security standards and designed to provide additional
protection for the device and device data transfer must be implemented by the operators themselves.

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Input
Measured variable Direct measured variables
• Mass flow
• Density
• Temperature
Calculated measured variables
Volume flow
Measuring range Flow values in SI units
DN Measuring range full scale values min(F) to max(F)
[mm] [kg/h]
8 0 to 2 000
15 0 to 6 500
25 0 to 18 000
Flow values in US units
DN Measuring range full scale values min(F) to max(F)
[in] [lb/min]
³⁄₈ 0 to 73.50
½ 0 to 238.9
1 0 to 661.5
To calculate the measuring range, use the Applicator product selection tool →  35
Recommended measuring range
"Flow limit" section →  24
Operable flow range Over 1000 : 1.
Flow rates above the preset full scale value are not overridden by the electronics unit, with the result
that the totalizer values are registered correctly.
Input signal Available only for device versions using the Modbus RS485 communication method →  10.
Status input
The batching process is controlled by the automation system via the device's status input.
Maximum input values • DC 30 V
• 6 mA
Response time Adjustable: 10 to 200 ms
Input signal level • Low level: 0 to 1.5 V
• High level: 3 to 30 V
Assignable functions • Off
• Start batching process
• Start and stop batching process
• Reset totalizers 1-3 separately
• Reset all totalizers
• Flow override

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Output
Output signal Pulse/frequency/switch output
Function Can be set to:
• Pulse
Quantity-proportional pulse with pulse width to be configured.
• Automatic pulse
Quantity-proportional pulse with on/off ratio of 1:1
• Frequency
Flow-proportional frequency output with on/off ratio of 1:1
• Switch
Contact for displaying a status
Channel 2 Redundant output of pulse output: 0°, 90° or 180°
Version Passive, open emitter
Maximum input values • DC 30 V
• 25 mA
Voltage drop At 25 mA: ≤ DC 2 V
Pulse output
Pulse width Adjustable: 0.05 to 3.75 ms
Maximum pulse rate 10 000 Impulse/s
Pulse value Adjustable
Assignable measured
variables
• Mass flow
• Volume flow
Frequency output
Output frequency Adjustable: 0 to 10 000 Hz
Damping Adjustable: 0 to 999.9 s
Pulse/pause ratio 1:1
Assignable measured
variables
• Mass flow
• Volume flow
• Density
• Temperature
Switch output
Switching behavior Binary, conductive or non-conductive
Number of switching
cycles
Unlimited
Assignable functions • Off
• On
• Diagnostic behavior
– Alarm
– Alarm and warning
– Warning
• Limit value
– Mass flow
– Volume flow
– Density
– Temperature
• Flow direction monitoring
• Status
– Partially filled pipe detection
– Low flow cut off
Modbus RS485
Physical interface In accordance with EIA/TIA-485-A standard

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Switch output (batch: valve control)
• Only available for device version with Modbus RS485 →  10.
• Depending on the device version, the device has one or two switch outputs.
Switch output
Version Active, open emitter
Maximum input values • DC 30 V
• 500 mA
Switching behavior Binary, conductive or non-conductive
Number of switching
cycles
Unlimited
Assignable functions • Open
• Closed
• Batching
Signal on alarm Depending on the interface, failure information is displayed as follows:
Pulse/frequency/switch output
Pulse output
Failure mode Choose from:
• Actual value
• No pulses
Frequency output
Failure mode Choose from:
• Actual value
• 0 Hz
• Defined value: 0 to 10 000 Hz
Switch output
Failure mode Choose from:
• Current status
• Open
• Closed
Modbus RS485
Failure mode Choose from:
• NaN value instead of current value
• Last valid value
Low flow cut off The switch points for low flow cut off are user-selectable.
Galvanic isolation • Device version: 2 pulse/frequency/switch outputs
Order code for "Output, input", option 3:
– Pulse/frequency/switch outputs galvanically isolated from supply potential.
– Pulse/frequency/switch outputs not galvanically isolated from each other.
• Device version: Modbus RS485, 1 switch output (batch), 1 status input
(Order code for "Output, input": option 4)
Switch outputs (batch) and status input on supply potential
• Device version: Modbus RS485, 2 switch outputs (batch), 1 status input
(Order code for "Output, input", option 5:)
– Switch outputs (batch) on supply potential.
– Status input, galvanically isolated.

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Protocol-specific data Modbus RS485
Protocol Modbus Applications Protocol Specification V1.1
Device type Slave
Slave address range 1 to 247
Broadcast address range 0
Function codes • 03: Read holding register
• 04: Read input register
• 06: Write single registers
• 08: Diagnostics
• 16: Write multiple registers
• 23: Read/write multiple registers
• 43: Read device identification
Broadcast messages Supported by the following function codes:
• 06: Write single registers
• 16: Write multiple registers
• 23: Read/write multiple registers
Supported baud rate • 1 200 BAUD
• 2 400 BAUD
• 4 800 BAUD
• 9 600 BAUD
• 19 200 BAUD
• 38 400 BAUD
• 57 600 BAUD
• 115 200 BAUD
Data transfer mode • ASCII
• RTU
Data access Each device parameter can be accessed via Modbus RS485.
For Modbus register information →  36
Power supply
Terminal assignment Connection is solely by means of device plug:
There are different device versions available:
Order code for "Output, input": Device plug
Option 3: 2 pulse/frequency/switch outputs →  11
Option 4: Modbus RS485, 1 switch output (batch), 1 status input →  12
Option 5: Modbus RS485, 2 switch outputs (batch), 1 status input →  13