SIEMENS,Room sensors, QFA41… ,for relative humidity and temperature with calibration certificates
Room sensors
QFA41…
for relative humidity and temperature with calibration certificates
• Operating voltage AC 24 V / DC 13.5…35 V
• Signal output DC 0…10 V / 4…20 mA for relative humidity and temperature
• Very high measuring accuracy across the entire measuring range
• Capacitive humidity measurement
• Recalibration service
• Test function for loop test
• Range of use −40…+70 °C / 0…100 % r. h. with LCD display −25…+70 °C / 0…100 % r. h.
Use
The QFA41… sensor is used in ventilation and air conditioning plants requiring:
• Very high accuracy and reliability for measuring relative humidity and temperature
• Regular recalibration and readjustment of the sensors
Examples:
• Storage and production facilities in the paper, textiles, pharmaceutical, chemical, electronics industries, etc.
• Laboratories
• Hospitals
• Computer centers
• Greenhouses
สั่งซื้อสินค้า
สินค้าที่เกี่ยวข้อง
Siemens VPP46..Q,Combi valves (PICV) PN25, externally threaded
systems
With integrated differential pressure controller
DN 10…DN32: Valve body made of dezincification resistant hot-pressed
brass (DZR)
DN 40…DN 50: Housing made of spheroidal graphite iron
Volumetric flow 30… 11500 l/h,
Differential pressure range 15…600 kPa
Internally threaded Rp conforming to ISO 7-1
Externally threaded G conforming to ISO 228-1
Version with pressure test points for Δp measurement (optional)
Can be equipped with electro thermal or electromotive actuators
SSA.. (3-position or DC 0…10 V)
STA..3../STP..3.. (2-position or PDM)
STA63../STP63.. (DC 0…10 V)
SAY..1P03 (3-position or DC 0…10 V)
Siemens MXG462S..Modulating control valve with magnetic actuator‚ PN16
Short positioning time (< 2 s), high-resolution stroke (1 : 1000)
∂ Selectable valve characteristic: equal-percentage or linear
∂ High rangeability
∂ Operating voltage AC / DC 24 V
∂ Selectable standard signal inputs DC 0/2…10 V or DC 0/4…20 mA
∂ DC 0…20 V Phs phase-cut signal input for Staefa controllers
∂ Indication of operating state, visible from the outside
∂ Wear-free inductive stroke measurement
∂ Low friction, robust and maintenance-free
∂ Spring return facility: A↑ AB closed when de-energized
∂ Positioning control, position feedback and manual control
∂ Parts in contact with medium in CrNi steel
∂ MXG462S50-30 applications with demineralized water upon request
Siemens MXG461..P Modulating control valves with magnetic actuators, PN 16
Fast positioning time (<2 s), high-resolution stroke (1 : 1000), high rangeability
? Equal-percentage or linear valve characteristic (user-selected)
? Operating voltage AC / DC 24 V
? Switch-selected control signal DC 0/2…10 V or DC 4…20 mA
? DC 0…20 V phase cut control signal with SEZ91.6 external interface
? Indication of operating state, position feedback and manual control
? Wear-free inductive stroke measurement
? Fail-safe feature: A ? AB closed when de-energized
? Low friction, robust, no maintenance required
Siemens ZM100/A Electronic connection for valves with magnetic actuator
Terminal housing for control of valves with mag-netic actuator
•
Control with choice of positioning signals or direct control
AC 24 V
DC 0…10 V
DC 4…20 mA
DC 0…20 V Phs
Siemens QFM31..D Duct sensors for rel. humidity / temperature for demanding requirements
• • Operating voltage AC 24 V / DC 13.5…35 V
• Signal output DC 0…10 V / 4…20 mA for relative humidity and temperature
• Very high measuring accuracy across the entire measuring range
• Function test
• Capacitive humidity measurement
• Range of use −40…+70 °C / 0…100 % r. h. with LCD display −25…+70 °C / 0…100 % r.h.
Siemens QFM31..Duct sensors for rel. humidity / temperature for demanding requirements
• Operating voltage AC 24 V / DC 13.5…35 V
• Signal output DC 0…10 V / 4…20 mA for relative humidity and temperature
• Very high measuring accuracy across the entire measuring range
• Function test
• Capacitive humidity measurement
• Range of use −40…+70 °C / 0…100 % r. h. with LCD display −25…+70 °C / 0…100 % r.h.