描述
The SIEMENS QAM9120.040 is a duct temperature sensor from Siemens Smart Infrastructure (Building Technologies division) . It features a 400 mm probe length (min. bending radius 10 mm) with a time constant of 30 seconds at 2 m/s airflow and dead time < 1 second . The sensor is housed in a polycarbonate base (RAL 7001 silver-grey) with a RAL 7016 cover and a PA 66 black mounting flange, weighing approximately 0.15 kg . With IP42 protection (IP54 achievable with optional cable gland) per EN 60529, Protection Class III per EN 60730-1, and an operating temperature range of -40°C to +70°C, this sensor is designed for reliable, long-term deployment in HVAC ductwork . It connects via screw terminals accommodating 1 × 2.5 mm² or 2 × 1.5 mm² wires, with an M16 × 1.5 cable entry gland for 5.5–7.2 mm diameter cables . The QAM9120.040 complies with EN 60730-1, carries CE marking, and is UL 873 listed .
Key Features
- Duct temperature sensor for ventilation and air-conditioning systems
- Probe length: 400 mm; minimum bending radius 10 mm
- Time constant: 30 s at 2 m/s airflow; dead time < 1 s
- Measurement accuracy: refer to Type Summary (per Siemens datasheet)
- Housing: Polycarbonate base (RAL 7001 silver-grey) + RAL 7016 cover
- Mounting flange: PA 66 (black)
- Weight: approx. 0.15 kg
- Protection degree: IP42 per EN 60529 (IP54 with optional cable gland)
- Protection Class III per EN 60730-1
- Electrical connection: Screw terminals for 1 × 2.5 mm² or 2 × 1.5 mm²
- Cable entry: M16 × 1.5 gland for 5.5–7.2 mm diameter cables
- Probe material: Copper with polyolefin insulation
- Ambient operating temp: -40°C to +70°C; humidity 5–95% r.h. (IEC 60721-3-2 Class 3K5)
- Transport/storage temp: -25°C to +70°C (IEC 60721-3-2 Class 2K3)
- Standards & approvals: EN 60730-1, CE marking, UL 873
- Dimensions: L1 max 400 mm × L2 min 97 mm × drilling Ø 37 mm
- Country of Origin: Siemens Switzerland Ltd (Smart Infrastructure)
Technical Specifications
Parameter | Specification |
|---|---|
Brand | Siemens Smart Infrastructure (Building Technologies) |
Model | QAM9120.040 |
Product Type | Duct temperature sensor |
Probe Length | 400 mm |
Min. Bending Radius | 10 mm |
Time Constant | 30 s at 2 m/s airflow |
Dead Time | < 1 s |
Measuring Accuracy | Refer to Type Summary (per Siemens datasheet) |
Housing Material | Polycarbonate base (RAL 7001 silver-grey); RAL 7016 cover |
Mounting Flange | PA 66 (black) |
Probe Material | Copper, polyolefin insulation |
Weight | Approx. 0.15 kg |
Protection Degree | IP42 per EN 60529 (IP54 with optional cable gland) |
Protection Class | III per EN 60730-1 |
Power Supply | Passive sensor (no external power required) |
Electrical Connection | Screw terminals for 1 × 2.5 mm² or 2 × 1.5 mm² |
Cable Entry | M16 × 1.5 gland for 5.5–7.2 mm diameter cables |
Operating Temperature | -40°C to +70°C; 5–95% r.h. (IEC 60721-3-2 Class 3K5) |
Transport/Storage Temp. | -25°C to +70°C (IEC 60721-3-2 Class 2K3) |
Mechanical Conditions | IEC 60721-3-3 Class 2M2 |
Standards | EN 60730-1 (Automatic electrical controls) |
Approvals | CE marking, UL 873 |
Dimensions (L1 × L2 × Drilling) | 400 mm (max) × 97 mm (min) × Ø 37 mm |
Document Reference | Siemens Datasheet A6V12170203_en—_a, Edition 2021-01-06 |
Issued By | Siemens Switzerland Ltd, Smart Infrastructure Global Headquarters, Zug |
Country of Origin | Switzerland / Germany (Siemens Smart Infrastructure) |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Bench test: Visual inspection → probe integrity check (400 mm length, 10 mm min. bending radius verification) → resistance/continuity measurement → time constant verification (30 s @ 2 m/s) → IP42 enclosure test → screw terminal torque test → M16×1.5 cable gland fit test → -40°C and +70°C operational test
- Technical support:
- Model verification — confirming QAM9120.040 matches your HVAC application (duct air temperature measurement)
- Controller compatibility — pairing with Siemens HVAC controllers (RWD, RL, RM, RD series) or third-party BACnet/DDC systems
- Cable selection — recommending appropriate 2-wire cable (2 × 1.5 mm² or 1 × 2.5 mm²) for the M16×1.5 gland entry
- Installation guidance — drilling template (Ø 37 mm hole), probe insertion depth (400 mm), bending radius precautions (≥10 mm)
- Alternative model selection — if a different signal type or measurement range is needed, advising on QAM2120.040 (Ni1000, -50 to +80°C) or other QAM9xxx variants
- BACnet / Modbus integration — connecting to building management systems via appropriate transmitters
- Optional accessories: M16×1.5 cable gland (for IP54 upgrade), 2-wire shielded cable, duct mounting bracket, replacement polycarbonate cover
Delivery Time: 3-5 working days (standard) / Express available
⚠️ IMPORTANT — Read Before Ordering:
- The QAM9120.040 is a passive temperature sensor — it requires a compatible controller or transmitter with appropriate input (e.g., Ni1000, Pt1000, 0-10V, 4-20mA depending on variant) to generate a readable signal
- Verify your controller input type — Siemens QAM9xxx series includes variants with different sensing elements (refer to the complete Type Summary in the Siemens datasheet A6V12170203)
- Probe length is 400 mm — ensure your duct depth accommodates this; shorter (200mm) or longer (600mm) variants are available in the QAM9xxx family
- IP42 standard; IP54 only with optional cable gland — for high-humidity or washdown environments, specify the IP54 option
- Passive sensor — no power supply needed, but proper 2-wire cable routing away from power cables is essential to avoid interference
- For active output (0-10V or 4-20mA) variants, consider QAM2120.040 (Ni1000, -50 to +80°C, 400mm probe) or consult the full Siemens QAM9xxx catalog
- Send us your HVAC controller model and duct dimensions — we’ll confirm the exact QAM9xxx variant for your application
Why Choose Our Store
- Genuine Siemens Smart Infrastructure components — direct from authorized channels, no counterfeit risk
- QAM9120.040 in stock — genuine Siemens Switzerland-manufactured duct temperature sensors
- Full Siemens HVAC sensor portfolio — QAM9120.040, QAM2120.040, QAM2130.040, QAM2170.040, QAM2200.040, and related models
- Siemens HVAC system expertise — we support RWD, RL, RM, RD controllers, BACnet/DDC integration, and complete building automation solutions
- Comprehensive technical documentation — original Siemens datasheet A6V12170203, dimensional drawings, installation guides
- Global supply network with competitive pricing
- Responsive customer service — multilingual support team
Applications
- Air handling units (AHU) — supply/return air temperature measurement for VAV and CAV systems
- Duct temperature sensing — ventilation and air-conditioning systems
- Supply/extract air temperature monitoring — HVAC control loops
- Limit sensor applications — e.g., low supply air temperature cutoff
- Reference sensor — room setpoint adjustment based on outdoor temperature function
- Measurement & display — standalone temperature measurement for BMS dashboards
- Building automation systems — integration with Siemens Desigo CC, APOGEE, and third-party BACnet/MODBUS BMS
- Cleanrooms & laboratories — precise duct air temperature control
- Horticulture / agricultural greenhouses — duct climate control (similar to QAM2120.040 applications)
- Industrial ventilation — process air temperature monitoring in factories, warehouses, and plants
评价
目前还没有评价