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| Brand | Ontech |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | Ontech800 |
| Price Range | USD 770 – 1,680 |
| Brand | LESHI |
|---|---|
| Origin | Beijing, China |
| Model | 9100CAL-F |
| Compliance | GB/T 5275.7–2014 (Dynamic Volumetric Method for Preparation of Calibration Gas Mixtures) |
| Flow Control Principle | Thermal Mass Flow Control (MFC) |
| Accuracy | ±0.1% of full scale (standard range) |
| Concentration Units | ppm, mg/m³, %Vol (software-switchable) |
| Humidity & Temperature Control | Integrated vaporizer with temperature lockout safety logic |
| Corrosive Gas Compatibility | HF, HCl, and other acid vapors via direct liquid injection + micro-steam generation |
| Portability | Integrated compact chassis with field-deployable carry case |
| Human-Machine Interface | Embedded 7-inch capacitive touchscreen HMI with gradient gas profile programming |
| Brand | Leshi |
|---|---|
| Origin | Beijing, China |
| Model | 9100CAL |
| Flow Accuracy | ±0.5% of reading, ±0.1% of full scale |
| Max Total Output Flow | 10 L/min |
| Standard Configuration | 2 MFCs (Zero Air + Calibration Gas) |
| Gas Compensation | Pre-loaded thermal mass flow compensation factors for common gases |
| Communication Interfaces | Analog (4–20 mA / 0–10 V), Modbus RTU (RS-485), Modbus TCP/IP |
| Software Features | Audit-trail-capable calibration logging, certificate ID tagging, traceable session records |
| Compliance | Designed for ISO/IEC 17025, EPA PS-1/PS-2, EN 15267, and QAL1/QAL2 validation workflows |
| Brand | Ontech |
|---|---|
| Model | Ontech 830 |
| Origin | Guangdong, China |
| Type | Domestic Instrument |
| Price | USD 31,200 (approx.) |
| Sample Capacity | 1 L, 3 L, 6 L, and 15 L SUMMA canisters & Tedlar® bags |
| Cleaning Stations | 8 positions (for 3 L and 6 L canisters) |
| Pressure Measurement | Dual-system (diffused silicon sensor + vacuum silicon sensor) |
| Construction | 316 stainless steel tubing and components, silanized for inertness |
| Control Interface | Touchscreen + PC software |
| Compliance | HJ 759–2023, HJ 1012–2018, GB/T 14678–1993, HJ 1078–2019, HJ/T 194–2005 |
| Brand | Ontech |
|---|---|
| Model | Ontech 830 |
| Origin | Guangdong, China |
| Type | Automated Canister and Tedlar® Bag Purge & Humidification System |
| Compliance | HJ 759–2023, HJ 1012–2018, GB/T 14678–1993, HJ 1078–2019, HJ/T 194–2005 |
| Sample Vessels | Summa canisters (1 L, 3 L, 6 L, 15 L), Tedlar® bags |
| Cleaning Stations | 8-position (for 3 L and 6 L canisters) |
| Construction | Electropolished 316 stainless steel with silanized inert surface treatment |
| Pressure Sensing | Dual-sensor system (diffused silicon + vacuum silicon) |
| Control Interface | Touchscreen + PC-based software |
| Humidification | Integrated automated humidification module |
| Power | 220 VAC, 50 Hz |
| Dimensions (W×D×H) | 700 × 650 × 1800 mm |
| Weight | ~120 kg |
| Brand | Ontech |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Ontech 850 |
| Price Range | USD 14,000 – 42,000 |
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