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INSTRUCTION MANUAL FOR DEMA CHEMASTER
DM-813-LLL-1T, DM-813-LLL-2T, DM-813-DLL-1T and
The Chemaster series is a comprehensive range of single and dual function units for Industrial
DishWashing, Trash Treatment, and Chemical Transfer etc.
Units are encased in a heavy-duty plastic housing with a sealed cover that has a Mylar label for access of
external control and visibility of indicators. Options range from powerful long lasting peristaltic pumps
for liquid products to solenoid valves for dry products.
Pumps are available in three sizes and are coupled to 15, 60 or 105 rpm motor/gear boxes that yield flow
from .02oz/min. (0.5ml/min.) to 47oz/min. (1.4 liters/min). In addition to these units, original equipment
manufactured pump/motors are available in sizes up to 1 ½ GPM (6 LPM) and are available with different
tubing material for individual applications.
.
All units are equipped with a built in transformer (single or dual) depending on the model, with primary
voltages of 120,208, 240/50-60Hz and secondary voltage of 24/50-60Hz for maximum safety and
reliability. Circuit boards for detergent control are available as probe units, variable speed and timed
units; combined with a variable speed board for the rinse (second pump). Various combinations may be
constructed from this range of components.
All units are packaged with installation kits and this instruction.
System Features
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Heavy Duty ABS Plastic Case
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Splash proof heavy duty Mylar label(Customized labels are available)
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External access to prime function
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Special low current output on Speed Control units
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Metal motor/gear boxes with 2000 plus hours of brush life
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Patent Pending on control software
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Components are interchangeable within the industry
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Separate 40VA transformer for each motor
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Longer pump tubing life due to special elastomer formula
Operating Mode
The conductivity control is designed with unique software that maintains a high degree of accuracy due to
its way of controlling the dispensing device (pump or solenoid valve).
After the controller is engaged, the indicator turns red (power on). When the indicator turns yellow, the
unit is in calculation mode. During this cycle the unit checks values received from the probe and
calculates whether or not to start the pump/solenoid valve. If additional chemical is needed, the control
operates the dispensing device in an on/off cycle mode: Green light is on for 7seconds and then off for 7
DEMA I-668
Rev C-28236
DM-813-DLL-2T
Introduction
TM
Pg. 1 of 9
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Summary of Contents for DEMA CHEMASTER DM-813-LLL-1T
- Page 1 INSTRUCTION MANUAL FOR DEMA CHEMASTER DM-813-LLL-1T, DM-813-LLL-2T, DM-813-DLL-1T and DM-813-DLL-2T Introduction The Chemaster series is a comprehensive range of single and dual function units for Industrial DishWashing, Trash Treatment, and Chemical Transfer etc. Units are encased in a heavy-duty plastic housing with a sealed cover that has a Mylar label for access of external control and visibility of indicators.
- Page 2 1/8” NPT. If this is done into a thin pipe wall (copper) use a saddle clamp instead. Note: A better mixture of the chemical and water will occur if the rinse injection is mounted before the booster heater. DEMA I-668 Pg. 2 of 9 Rev C-28236...
- Page 3 WARNING: Electrical and grounding installation of DEMA products must comply with electrical codes and regulations established by national, city, county, parish, provincial or other agencies. It is possible that electrical codes and regulations require that a certified electrical contractor or engineer perform the electrical installation.
- Page 4 Off=Low volume (approx. 25 dB) (Other levels may be available upon special request) Switch Five=Chemical Type Select On=Liquid chemical Off=Dry/Powder chemical Switch Six=Solenoid Select On=Two solenoids in use Off=One solenoid in use DEMA I-668 Pg. 4 of 9 Rev C-28236...
- Page 5 Check for the correct concentration by using an alkalinity titration test kit (DEMA #81-53) or a separate conductivity meter if the µmho or µS level is known. Adjust as necessary.
- Page 6 3. Confirm the supply rate of the rinse pump using a graduated cylinder. Make any necessary adjustments to pump rate by use of potentiometer labeled “sani”. After all output of chemical products have been calibrated, the Chemaster is ready for use DEMA I-668 Pg. 6 of 9 Rev C-28236...
- Page 7 DM-813-LLL-1T and DM-813-DLL-1T Schematic (1 Transformer) 20774-1 (81-94-1) ORANGE BLACK DEMA I-668 Pg. 7 of 9 Rev C-28236...
- Page 8 DM-813-LLL-1T and DM-813-DLL-2T Schematic (2 Transformers) BLACK DEMA I-668 Pg. 8 of 9 Rev C-28236...
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Page 9: Technical Specifications
15, 60 or 100 rpm (depending on model) Material Metal Squeeze tubing material EPDM, opt. Viton, Santoprene Squeeze tubing size ID Rinse: 1/8” (3.2mm) Detergent: 3/16” (4.8mm) Pump output Rinse Max. 1.15oz/min (34ml/min) Pump output Detergent Max. 7.27oz/min (215ml/min) DEMA I-668 Pg. 9 of 9 Rev C-28236... -
Page 10: Return Policy
This warranty is extended only to the original buyer of DEMA products. If products are altered or repaired without prior approval of DEMA, this warranty will be void.