ALICAT SCIENTIFIC M-1SLPM-D-DB9M-5M Flow M-1SLPM-D-DB9M/5M Meter

( Brand: Alicat Scientific ), ( Manufacturer Part Number: M-1SLPM-D-DB9M/5M ), ( Part Type: Flow Meter ), ( Flow Meter Type: Mass Flow Meter ), ( Unit Type: Unit ), ( Minimum Flow Rate: 0 L/min ), ( Maximum Flow Rate: 1 L/min ), ( Country Of Origin: United States )

Review ALICAT SCIENTIFIC M-1slpm-d-db9m/5m M-1slpm-d Mass Flow Meter Calibrated Nov

The **ALICAT Scientific M-1SLPM-D (DB9M/5M)** is a high-performance, mass-flow controller designed for precision measurement and regulation of gas flows in laboratory, industrial, and research applications. Engineered with ALICAT s proprietary **Digital Mass Flow Control (DMFC) technology**, this device delivers unmatched accuracy, stability, and reliability across a wide range of gases, including corrosive, inert, and reactive substances. The **M-1SLPM-D** is part of ALICAT s **M-series**, which is renowned for its robust construction, user-friendly interface, and seamless integration into automated systems. With a **flow range of 0.01 to 1 standard liters per minute (SLPM)**, this compact yet versatile flow meter excels in applications requiring fine-tuned control, such as semiconductor manufacturing, chemical synthesis, medical device calibration, and environmental testing.

The flow meter features a **thermal dispersion mass flow sensor**, ensuring consistent performance regardless of gas composition, pressure fluctuations, or temperature variations. Its **digital output (DB9M/5M)** provides real-time data via a **RS-232 serial interface**, enabling seamless connectivity to PCs, data loggers, or PLCs for automated monitoring and control. The **5-meter cable extension** enhances flexibility in setup, allowing for greater distance between the sensor and control unit without compromising signal integrity. Additionally, the device incorporates **ALICAT s patented thermal compensation technology**, which dynamically adjusts for temperature drift, ensuring long-term stability and repeatability even in demanding environments.

Built to withstand rigorous use, the **M-1SLPM-D** is constructed from **316L stainless steel and high-grade polymers**, making it resistant to corrosion, contamination, and harsh chemicals. Its **modular design** allows for easy installation and maintenance, with a **quick-connect fitting** for hassle-free gas line integration. The device also supports **multiple gas calibration profiles**, enabling users to switch between different gases without recalibration, thus optimizing efficiency in multi-tasking workflows. Whether used in a controlled laboratory setting or a high-throughput industrial process, this flow meter delivers **sub-1% accuracy** and **0.5% repeatability**, making it an indispensable tool for applications where precision and reliability are paramount.

For researchers and engineers seeking a **compact yet powerful flow control solution**, the **ALICAT Scientific M-1SLPM-D** combines cutting-edge technology with rugged durability, ensuring dependable performance for years to come. Its **intuitive digital interface**, combined with ALICAT s **comprehensive software support**, simplifies setup, calibration, and troubleshooting, reducing downtime and enhancing productivity. Whether deployed in a cutting-edge R&D lab or a production facility, this flow meter stands as a testament to ALICAT s commitment to innovation, precision, and user-centric design.

### **Pros and Cons of buying a Alicat Scientific M-1SLPM-D (DB9/M) Mass Flow Meter (2024 Model)**

#### **Pros**

1. **High Precision and Accuracy**

The Alicat Scientific M-1SLPM-D is known for its high-precision mass flow measurement, with accuracy typically within 1% of reading 0.5% of full scale. This makes it suitable for applications requiring tight control, such as laboratory gas delivery, semiconductor manufacturing, or medical device calibration.

2. **Digital Calibration and Remote Control**

The device features digital calibration, allowing for easy adjustments without recalibration. It also supports remote control via USB or RS-232, making it convenient for automated systems or integration with lab equipment.

3. **Wide Range of Flow Rates**

The M-1SLPM-D supports flow rates from **0.1 to 1 standard liters per minute (SLPM)**, making it versatile for small-scale applications where precise low-flow control is essential.

4. **Compatibility with Multiple Gases**

Alicat flow meters are designed to work with a variety of gases, including inert, reactive, and corrosive gases, provided the correct tubing and fittings are used. This flexibility is beneficial for research and industrial applications.

5. **Compact and Portable Design**

The DB9 or M-series connectors (depending on the variant) make it easy to integrate into existing setups. The meter itself is relatively compact, which is advantageous for space-constrained environments like benchtop labs.

6. **Durable and Reliable Construction**

Alicat meters are built with high-quality materials, ensuring long-term durability and resistance to wear and tear. The digital display and robust housing contribute to reliability in demanding environments.

7. **Software and Data Logging Capabilities**

Alicat provides software tools for data logging, real-time monitoring, and integration with lab automation systems. This is particularly useful for experiments requiring precise flow control and record-keeping.

8. **Good Customer Support and Warranty**

Alicat Scientific is a well-established brand with strong customer support, including technical assistance and warranty coverage. This can be reassuring for buyers who need reliable after-sales service.

---

#### **Cons**

1. **Higher Upfront Cost**

Alicat flow meters are premium-priced compared to basic mechanical or thermal mass flow meters. The M-1SLPM-D, while not the most expensive in the Alicat lineup, still represents a significant investment for small labs or budget-conscious buyers.

2. **Limited Flow Range for Some Applications**

The **0.1 1 SLPM range** may be too narrow for applications requiring higher flow rates. Users needing larger volumes may need to invest in a different model (e.g., the M-2SLPM or M-5SLPM series).

3. **Dependence on Power Supply**

Being an electronic device, the M-1SLPM-D requires a stable power source. Fluctuations or power outages could disrupt operation, though Alicat meters typically have backup power options.

4. **Potential Learning Curve for Non-Technical Users**

While user-friendly, the digital interface and software may require some initial training, especially for users unfamiliar with mass flow meters or lab automation tools.

5. **Calibration and Maintenance Requirements**

Although digital calibration simplifies adjustments, periodic recalibration may still be necessary to maintain accuracy. Some users may need to invest in calibration services or training.

6. **Compatibility Issues with Certain Gases**

While Alicat meters support many gases, extremely corrosive or reactive gases may require specialized tubing or additional safety measures, which could add to the overall cost.

7. **No Built-in Pressure Compensation (Standard Model)**

The M-1SLPM-D measures mass flow, not volumetric flow, but some applications may require pressure compensation. While Alicat offers models with this feature, the standard M-1SLPM-D does not include it by default.

---

### **Conclusion**

The **Alicat Scientific M-1SLPM-D (DB9/M) mass flow meter** is an excellent choice for applications requiring **high precision, digital control, and compatibility with a range of gases** within the **0.1 1 SLPM range**. Its durability, ease of integration, and robust software support make it ideal for **laboratory settings, research, and industrial processes** where accuracy is critical.

However, its **higher cost, limited flow range, and dependency on power** may make it less suitable for **high-volume applications or budget-restricted environments**. Users should carefully assess their specific needs particularly flow rate requirements and gas compatibility before purchasing.

### **Recommendation**

- You need **precise low-flow control** (0.1 1 SLPM) for laboratory, medical, or semiconductor applications.

- You require **digital calibration, remote control, and data logging** capabilities.

- You prioritize **durability and long-term reliability** over cost savings.

- You need **higher flow rates** (e.g., >1 SLPM), in which case a model like the **M-2SLPM or M-5SLPM** may be more appropriate.

- Your budget is tight, and you can compromise on **accuracy or features** basic mechanical or thermal mass flow meters may suffice.

- You work with **extremely corrosive gases** that require specialized components, which could increase costs.

For most **precision-oriented applications within its specified range**, the Alicat M-1SLPM-D remains a **strong, well-supported choice**. However, always verify compatibility with your specific gases and system requirements before finalizing the purchase.

Details:

Brand: Alicat Scientific. Please refer to the photos for exact details of connectors and labeling. Digital Interface: The clear backbit display provides real-time data for Mass Flow, Volumetric Pressure, and Temperature. Flow Range: to 0.5 SCCM Ultra-Low.

Serial Number: 565008. Gas Type: Air. Important Note on Accessories: This listing includes the DC power supply cable. Condition Note: The unit is in excellent physical condition and has been tested for power display functionality.

Integrated Filtration: Comes pre-installed with a large inline filter housing to protect the internal sensor from particulate damage. Important Note on Accessories Condition. This unit comes equipped with a DB9 digital/analog interface and is ready for immediate power-up via the included DC power supply. Alicat Scientific M-Series Mass Flow Meter.

Model: M-0.5SCCM-D/5M, GAS: Air.

part #: m1slpmddb9m5m prices

• $210.00-$550.00

specifications pneumativalv:

• brand: Alicat Scientific
• mpn: M-1slpm-d-db9m/5m
• part type: Flow Meter
• flow meter type: Mass Flow Meter
• unit type: Unit
• minimum flow rate: 0 L/min
• maximum flow rate: 1 L/min
• country of origin: United States

general pneumativalv:

• condition: Used
• Pump Flow Controllers > Flow Controllers Meters > Flow Meters

offer pneumativalv:

• best offers: True
• started: April 6, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0

shipping pneumativalv:

• class: Standard
• carrier: UPS
• transit: 3-8 Days
• type: Fixed
• service: UPS Ground
• cost: $15.00

returns pneumativalv:

• policy: No Returns

payments pneumativalv:

• credit card: Visa
• other
• wallet: Paypal

seller pneumativalv:

• city: Somerville, Massachusetts
• rating: 100.0%
• # reviews: 55

Alicat Scientific M-1SLPM-D-DB9M-5M Is Similar To:

• G1-2.5psig-d Alicat Scientific Mass Flow Controller (47% similar) To avoid this from happening, please follow these important instructions. Item condition: good if is marked as used - may show signs of usage, few scuffs, dusty, dirty, etc. 5PSIG-D mass flow controller images to Alicat Scientific G1-2. Alicat Scientific G1-2. 5PSIG-D mass flow controller used, see ...(March 20th, 2019)
• L-0.5ccm-d-100psig-5v Alicat Scientific Liquid Mass Flow Meter Calibration (58.1% similar) Ships quickly, for free, from the USA. USPS shipping charges have gone up again. Comes as shown - does have a couple of dings in the window that is over display but it works properly and correctly too. Other tech specs below if you copy and paste the link. We'll be generous and say that at best, the...(March 22nd, 2018)
• L-10ccm-d Alicat Scientific Volumetric Liquid Flow Meter And Controller (48.7% similar) Alicat Scientific L-10CCM-D volumetric liquid flow meter and controller 6002B-2...(December 6th, 2018)
• Lc-500ccm-d-cv Alicat Scientific Mass Flow Controller (46.3% similar) ...(January 4th, 2019)
• M-250slpm Alicat Scientific Mass Flow Meter Gas (54.7% similar) Alicat Scientific flow meter...(September 29th, 2018)
• M-50slpm-o-abmd Alicat Scientific Mass Flow Controller (45.9% similar) F M-50SLPM-O-ABMD. Shipping account please if you would like to ship on your. F M-50SLPM-O-ABMD this sale is for nice Alicat Scientific mass flow controller model rev. Alicat Scientific mass flow controller rev. This sale is for nice Alicat Scientific mass flow controller model rev. Please e-mail ...(September 24th, 2018)
• M12i-100scfh-o-o Alicat Scientific Mass Flow (43.2% similar) You are buying on a used surplus, Alicat Scientific flow meter, P/N: M12I-100SCFH-O-O 75 ar 25 CO2, see photos...(October 18th, 2017)
• M250slpm-d Alicat Scientific Gass Mass Flow Meter Methane Slpm Npt (54.4% similar) Need this item next day. If you do not have an account no worries. Our cut-off time for shipping an item is 3:45PM ct. Messaging: through messages...(November 8th, 2018)
• Mc-10slpm-rd Alicat Scientific Mass Flow (44.6% similar) See photos for details. Alicat Scientific mass flow controller MC-10SLPM-RDUNTESTED - as is comes shown. Feel free to message with any questions regarding this listing...(January 13th, 2018)
• Mc-200sccm-d Alicat Scientific Mass Flow Controller Methane (47.1% similar) This is an Alicat MC-200SCCM-D gas flow controller used with methane CH4...(November 3rd, 2018)
• Mc-500sccm-d-1 Alicat Scientific Mass Flow (43.9% similar) Feel free to message with any questions regarding this listing. Alicat Scientific mass flow controller MC-500SCCM-D-1UNTESTED - as incomes shown. See photos for details...(January 13th, 2018)