K-Patents SeedMaster 2 - Manual (Page 22)

4 TECHNICAL DATA, MOUNTING AND ELECTRICAL CONNECTIONS 22
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4 TECHNICAL DATA, MOUNTING AND ELECTRICAL CONNECTIONS
SeedMaster 2 is based on the use of a high-power 32 bit microprocessor and a high capacity (32 MB)
memory operating under a real-time operating system. This, the application program of the device together
with parameters, measured and calculated data are stored in CF (Compact Flash) memory. Parameters,
calculated and archive data are stored every minute in the memory, therefore eventual loss of power supply
will not result in loss of these data. The real-time clock chip (DALLAS DS12887) used in the device has its
own lithium battery and needs replacement only after 10 years.
In order to increase reliability and to reduce servicing, no potentiometers are used in the instrument.
4.1 Specifications
Main device features
1. On-line calculation, display and transmission of up to 7 massecuite parameters and up to 4
additional monitored data during sugar crystallization for up to 2 pans simultaneously.
2. Automatic seeding of vacuum pans based on calculated supersaturation or density set-point for
seeding selected by the local technologist.
3. Collecting all calculated and measured data for the last 4 strikes in strike history archives, which can
be displayed as trends with appropriate time data. Brief (numerical) supersaturation strike history
(last 4 strikes).
4. Advanced communication features including the Ethernet.
5. Large LCD numeric and graphic display, robust design.
Data available for transmission
1. Calculated data (all over a complete strike):
1. Supersaturation (-)
2. Crystal content (% by volume)
3. Density (kg / m)
4. Consistency (%)
5. Solids content (%)
6. Mother liquor purity (%)
7. Mean crystal size (mm)
2. Additional data monitored in real time:
1. Syrup / mother liquor concentration (%)
2. Stirrer motor consumption (if used) (kW, or A)
3. Temperature (
˚C)
4. Level (optional) (%)
Inputs for calculation
1. Process inputs:
1. Syrup / mother liquor concentration measured by K-PATENTS refractometer(s)
2. Massecuite temperature measured by K-PATENTS refractometer(s), or separate
transmitter(s).
3. Third party transmitter measuring
•
density, OR
•
massecuite solids content, OR
•
stirrer motor power, or current consumption.
4. Optional input: massecuite level.
2. Digital (ON / OFF) inputs (depending on the selected mode of operation):
1. None.
2. Maximum 3 (DIN1: “Strike active”, DIN2: “Seeded”, DIN3:”Change feed syrup”).
3. Laboratory data:
1. Feed syrup purity (%).
2. Syrup quality (“m”, “b”, “c”) parameters. Typical data and a description of a procedure to
determine local parameters are provided.
NOTE:
All inputs can be also received via digital communication.