APT 1000 Hydrostatic Level Transmitter by Scanjet PSM
The PSM Marine APT 1000 marine-level transmitter provides reduced weight and sizing compared to previous generations and takes full advantage of the advancements in electronic design to provide enhanced accuracy and stability under varying operating temperatures. Tank profile curves can be entered to linearise the output signal for volume readings.
The body construction is all laser welded, thus eliminating any possibility of leaks, and all versions are IP68 certified suitable for full immersion to a minimum of 50M WG. The APT 1000 comes in a choice of construction materials, Stainless Steel, Titanium, and Hastelloy to ensure corrosion resistance in all applications. All measurement ranges will tolerate an overload of 2 x nominal range with no adverse effects on performance or calibration.
The transmitter electronics are fully integrated within the body and incorporate a powerful microcontroller to precisely monitor and process the output of the pressure cell. On-board non-volatile memory allows each transmitter to be fully configured for its intended duty either during manufacture or subsequently while in operation.
This marine transmitter is certified according to ATEX and IECEx regulations for installation in a hazardous area and Type Approved by DNV-GL as suitable for use in marine applications.
The APT 1000 replaces the iCT 1000 smart dual-mode hydrostatic level transmitter by PSM Marine.
APT1000 Level Transmitter features
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Robust all-welded submersible construction suitable for harsh environments
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Choice of construction materials compatible with all common marine liquid measurement applications
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Process connections and fixings for the side of the tank or submersible installation
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Simple to install, accurate and stable, robust and reliable
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Gauge or Absolute options with a wide measuring span and 0.1% performance
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The dual-mode operation provides outputs as 4-20mA and RS485 Modbus
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DNV-GL Type Approved and IECEx / ATEX certified for hazardous areas (Zone 0)
Digital and analogue operation
The APT1000 is a dual-mode transmitter providing an analogue 4-20mA signal and a multi-drop RS485 Serial communication based on industry-standard Modbus RTU protocol. Either or both outputs can be used in normal operation. The unit is fully programmable using the ACU1000 application available as a free download from Scanjet PSM.
When installing multiple tank applications digital mode enables significant cost and weight savings, removing the need for separate cable runs to each transmitter by utilising a single Multi-drop cable for both power and RS485 network. PSM RFM series termination and Safety barrier modules are used to save typically more than 50% of installation time and costs.
APT 1000 Hydrostatic Level Transmitter Specifications
| Materials | Sensor Body | 316L Stainless Steel or Titanium. Hastelloy C276316L Stainless Steel or Titanium. Hastelloy C276option for Wetted parts for external (to tank) mounting | |
| Diaphragm | 316L or Titanium to match body material. Hastelloy316L or Titanium to match body material. HastelloyC276 process ports use the Tantalum diaphragm. | ||
| Standard Measurement Ranges (Bar) | 0.2, 0.5, 1.0, 2.5, 4.0, 10, 25, 40, 60. | ||
| Measurement type | Vented Gauge or Absolute (Absolute version minimum range 1 bar) | ||
| Overload | 2 x Nominal range with no effect | ||
| Burst Pressure | 15 x Nominal range up to 10 Bar. 7 x Nominal range above 10 Bar | ||
| Turndown | 5:1 from Nominal range (relevant to 4-20mA scaling only) | ||
| Temperature measurement span/accuracy | 0 to +85°C +/- 1°C (reading only available in digital mode) | ||
| Total Error Band (pressure monitoring) | +/- 0.1% of Nominal range including thermal effect | ||
| Thermal compensation | No thermal effect within the range 0 to 70°C | ||
| Long term stability | Error not exceeding +/- 0.1% Per Annum | ||
| Max / Min process temperature | -20 to +85°C | ||
| IP Rating | IP68 suitable for continuous immersion | ||
| IEXEx certification | IECEx ITS 19.00023X Ex ia IIC T4 Ga -35°C≤Ta≤+85°C | ||
| ATEX certification | ITS19ATEX204962X Iss.0 E x ia II C T4 Ga -3 5 °C≤Ta≤+85°C | ||
| Signal Output / Power supply | 4-20mA & RS4854-20mA & RS485ModbusRTU/10 to 30V DC | ||
| Maximum load | Supply dependant. Vs-10/0.02 = Load in Ohms | ||
| Reverse polarity protection | Yes | ||
| Weight | 0.3Kg typical for the body. Cable 0.1Kg / metre | ||
APT 1000 PDF Downloads
Download Data Sheet
for the APT 1000 Level Transmitter
Download Installation Guide
for the APT 1000 Level Transmitter