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DigiFlow 8000T Water Flow Meter: Savant Filter Life Monitoring Specifications
Quick Answer
The DigiFlow 8000T water flow meter combines a magnetic flow sensor with Savant filter life monitoring in one converter. It reports live flow rate, totalised volume, and filter capacity remaining based on actual water volume. This meter suits process water loops, cooling towers, wash lines, and pretreatment skids where a blocked filter can stop production.
What Savant Filter Life Monitoring Does
Savant filter life monitoring is a local software function inside the DigiFlow 8000T converter. You set a filter capacity in litres after installing a new cartridge. The meter subtracts actual forward flow from that number. The display shows remaining filter life as a percentage and as a volume value. In practice, operators check the bar graph on the LCD and replace the filter before pressure drop becomes a problem.
A relay output can be assigned to the filter life alarm. Most sites set the relay to change state at 10 percent remaining and again at 0 percent. You can wire this relay to a local beacon, a PLC input, or a pump stop circuit. The calculation runs inside the meter, so there is no dependency on a control system. This design keeps filter protection active even if the PLC scan is busy or communication drops.
DigiFlow 8000T Filter Life Monitoring Specifications
The filter life baseline is user configurable from 1 litre to 9,999,999 litres. The remaining volume updates every 0.5 seconds. Alarm setpoints are adjustable at 1 percent steps from 0 to 100 percent. A manual reset is available through the keypad or Modbus register 40125. An external reset can also be wired to a digital input for fast filter changes.
The converter stores the filter life value in non volatile memory. A power cycle does not erase the countdown. This matters on remote water skids where power may be cut during shift changes. The display shows both the set capacity and the remaining capacity, so an operator can confirm the correct filter was installed.
Flow Meter Specifications
The DigiFlow 8000T uses an electromagnetic measuring principle with no moving parts. It works on conductive water based liquids. Minimum conductivity is 20 µS/cm. Standard accuracy is plus or minus 0.5 percent of reading for flow velocity from 0.3 to 10 m per second. The flow velocity range covers 0.15 to 12 m per second. Pipe sizes run from DN15 to DN600.
Liner material is PTFE. Electrodes are 316L stainless steel. Optional electrodes include Hastelloy C and titanium for aggressive water streams. The sensor body is carbon steel with a corrosion resistant paint finish. A 304 stainless steel body is available for food and beverage washdown areas. Process pressure ratings are PN16 and PN40 depending on flange type. Standard process temperature is 0 to 70 °C. A remote mount converter extends the temperature limit to 120 °C.
Outputs include one active 4-20 mA signal, one passive 4-20 mA signal, pulse output, and RS485 Modbus RTU. The Modbus interface allows a plant SCADA system to read flow rate, total volume, filter remaining percentage, and alarm status. HART is available as an option on the 4-20 mA loop. This is useful when the meter replaces an old mecha
Power and Protection
The converter accepts 24 V DC or 85 to 265 V AC. Power consumption is below 8 VA. The standard enclosure rating is IP67. An IP68 sensor option supports temporary flooding in pits. The meter can be mounted in direct sunlight in the Middle East when the remote mount version is used and the converter is placed in a shaded panel.
Empty pipe detection is included. If the line drains, the meter holds the last valid flow reading and flags an alarm. This prevents false filter life consumption from air slugs. Reverse flow can either be added to total volume or ignored, depending on the site requirement.
Industries Where This Meter Fits
Water treatment plants in Vietnam and the Philippines use the DigiFlow 8000T on multi media filter inlet lines. The filter life alarm tells operators when media replacement is due. A cooling tower chemical supplier in Indonesia uses DN100 units on side stream filtration to protect dosing pumps from suspended solids. Food and beverage plants in Latin America use the meter after bag filters on wash water and clean in place return lines.
Desalination plants in Saudi Arabia and Kenya install the DigiFlow 8000T on pre filter feed lines. The local filter countdown reduces the risk of membrane fouling from a forgotten cartridge change. A paint manufacturer near Ho Chi Minh City used the relay output to stop a transfer pump when filter life reached zero. That change reduced pump seal failures because operators were no longer pushing product through a blocked filter.
Ordering Information
When you request a quote, specify the pipe diameter in DN, the normal and maximum flow in m3/h, the process temperature in °C, and the pipe pressure in bar. Also state the filter cartridge capacity in litres. Silver Instruments will confirm the liner, electrode, body, flange standard, and converter mounting option for your site.
Send your application details to Silver Automation Instruments. Tel: +86-25-68650347. WhatsApp: +86-25-52155837. WeChat: +86 15365082610. Website: flow-meter.com.au. Ask for a DigiFlow 8000T water flow meter quote with Savant filter life monitoring configured for your filter change interval.
FAQ: 5 Key Questions
Can the DigiFlow 8000T monitor filter life without a PLC?
Yes. The Savant filter life function runs inside the converter. The relay output can trigger a local alarm or stop a pump directly.
What pipe sizes are covered?
DN15 to DN600. Smaller lines can be quoted as a special request. Most filter life monitoring applications use DN50 to DN200.
Does the filter life countdown reset automatically after a filter change?
No. Reset is manual by keypad, digital input, or Modbus command. This forces the operator to confirm that a new filter was installed.
Can this meter work on reverse osmosis reject water?
Yes. The PTFE liner and 316L electrodes handle RO reject water. Hastelloy C electrodes are an option for high chloride streams.
What signal can I send to a SCADA system?
Standard RS485 Modbus RTU reports flow rate, total volume, filter remaining percentage, and alarm status. A 4-20 mA signal is also standard.
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