SMTP2 1000 μL Programmable Air-Displacement Pipetting Pump
FOREACH SMTP2-1000 μL is a programmable air displacement pipetting pump with integrated drive and control and a nominal capacity of 1000 μL. It uses disposable tips for sample transfer, reagent dispensing and aliquoting. Designed for integration into automated analyzers, sample preparation equipment and laboratory pipetting workstations, it transfers liquids from sample tubes or reagent containers to reaction tubes, sample cups and microplates.
SMTP2 supports liquid level, tip blockage and tip presence detection, together with automatic tip ejection, to address changing liquid levels, blocked tips and missing tips during automated pipetting. The instrument control program can use this feedback to assess pipetting status and coordinate positioning axes and exception handling during aspiration, transfer, dispensing and tip changes.
RS232, RS485 and CAN communication support connection to the instrument controller. Integration requires aspiration and dispensing parameters and detection configurations to be matched to actual working volumes, liquid properties, tip specifications and cycle times. Pipetting accuracy and repeatability must be verified with the intended liquids under actual equipment operating conditions.
Typical Applications:
Sample transfer, Reagent dispensing, Automated pipetting
| Product name | SMTP2 1000 μL programmable air-displacement pipetting pump |
|---|---|
| Model | SMTP2-1000μL |
| Product series | SMTP2 programmable air-displacement pipetting pump |
| Pipetting method | Air displacement |
| Nominal capacity | 1000μL |
| Drive design | Four-wire bipolar stepper motor with lead screw |
| Volumetric resolution | Standard mode: 0.319 μL/step; high-resolution mode: 0.02 μL/microstep |
| Full-stroke step count | Standard mode: 3143 steps; high-resolution mode: 48000 microsteps |
| Liquid-level detection | Pressure-based pLLD, capacitive cLLD and hybrid hLLD |
| Tip blockage detection | Supported (TPBD) |
| Tip presence detection | Supported (TPON / TPOFF) |
| Automatic tip ejection | Supported (ADTP) |
| Communication interfaces | RS232 / RS485 / CAN |
| Cascading capacity | Up to 16 pumps |
| Operating noise | <60 dBA; indoor use only |
| Operating environment | 15°C to 40°C; 20% to 95% RH at 40°C; non-condensing |
| Storage environment | -20°C to 65°C; 30% to 85% RH; non-condensing |
| Fluid temperature | 15°C to 40°C |
| Power requirements | 24VDC 500mA |
| Tip compatibility | Disposable and custom tips can be adapted; compatibility must be confirmed for the instrument geometry |
Typical applications
SMTP2 is intended for liquid-handling stations that require automated aspiration and dispensing with status feedback. The same pipetting assembly performs different tasks during sampling, reagent addition and aliquoting; detection signals should be associated with the actual exceptions at each step.
Sample preparation: transfer from the original sample tube to a processing vessel
In a sample preparation module, the pipetting unit loads a tip, locates the liquid surface, aspirates the specified sample volume and transfers it to the destination vessel. This task is called sample transfer or sample pipetting. Key considerations are the aspiration position, actual aspirated volume and residual liquid control when changing samples.
SMTP2 liquid-level and tip detection can support the instrument’s assessment of sampling status, while tip blockage detection can signal abnormal aspiration. Different sample levels, viscosities and vessel-bottom geometries still require validation together with the positioning axes and aspiration parameters.
Analytical workflows: reagent dispensing and reaction setup
Adding reagent to a reaction tube or well is reagent dispensing; adding samples, reagents and buffers sequentially according to a recipe is reaction setup. In both steps, the pipetting unit must deliver the set volume to the destination vessel and control carryover between samples.
SMTP2 can provide aspiration, dispensing and detection signals for these automated pipetting stations. Establish a liquid class for the specific liquid, coordinating aspiration speed, dwell time, tip withdrawal and dispensing height. The timing of disposable-tip changes should be included in the same workflow.
Sample aliquoting: distribution from one source vessel into multiple sample tubes
Transferring portions of one source liquid into multiple vessels is aliquoting. Separate aspiration and dispensing cycles allow each transfer to be managed individually. A single aspiration followed by multiple dispenses is multi-dispensing; the first, intermediate and final portions must meet the same volume requirements.
When selecting SMTP2-1000 μL, check the planned total dispense volume plus any method allowance against the usable capacity of the tip and pump. Multi-dispensing must be implemented through instrument commands and the motion sequence. Verify first and last portion volumes, dripping during transfer and handling of insufficient liquid.
Application selection information
Provide the minimum, routine and maximum pipetting volumes, sample or reagent properties, tip and vessel specifications, and requirements for liquid-level detection and exception handling. Also specify positioning axes, communication interfaces and the permitted processing time per sample.
Datasheet not yet available
The datasheet for this product has not been uploaded yet.
Frequently Asked Questions
1000 μL is the nominal capacity; 0.02 μL per microstep is the drive increment in high-resolution mode, not a minimum reliable transfer volume. The datasheet includes a 2 μL performance point using a 20 μL tip, but this does not establish suitability for every liquid and tip. Define the usable range against the intended volume, tip, liquid, accuracy and repeatability requirements.
Need help selecting a pipetting pump?
Share the volume range, tip specification, liquid-level and clog-detection requirements, communication interface, installation space, and control method. The Foreach engineering team can help confirm a suitable configuration.