Air Quality – QDT SERIES

1,990.00฿

SKU: AQ-QDT Category: Tags: , ,

PART NUMBER & PRICE

Type no. Description
Duct Air Quality (VOC) Transmitter
QDT Output 0-10 Vdc, 4-20 mA (selectable)
QDT S Same as QDT and with
change-over contact (normally open)

SPECIFICATION

Sensor VOC sensor (metal oxide)
with automatic self-calibration
Sensor
protection		 sinter filter, exchangeable,
screwed, easy to clean
Measuring
range		 0-100% air quality
referred to calibration gas
multi-range switching
(selectable DIP switches)
Measuring
accuracy		 VOC: LOW – MEDIUM – HIGH +/- 20% EW of final value
(referred to calibration gas)
Power supply 24 Vac/dc
Power
consumption 		 < 3 VA at 24 Vdc
Current
consumption		 ca. 70 mA at 24V
Output(s) 0-10 Vdc, 4-20 mA or 0-20 mA
(selectable)
Switch output
(only QDT S)		 potential-free changeover
contact (24V)
switch point adjustable from
0-100% of the output signal
Ambient
temp.range		 0 to +50°C
Detection of
gases		 not selective
Long-term
Stability		 < 10% per year
Warm-up period 1 hour
Response time < 10 s. minimum flow rate 0.2-0.5 m/s
Housing Plastic, material polyamide 30%
glass-globe-reinforced with
quick-locking screws,
72 x 64 x 37.4 mm
Cable gland M 16 x 1.5, incl. strain
relief, max inner dia. 10.4 mm
Probe tube Poliamide (PA6)
dia 20 mm, lenght 202.5 mm,
with torsion protection
Process
connection		 by mounting plastic flange
(including in the scoope of delivery)
Protection type IP 65 (according to EN 60529)
enclosure only
Protection class III (according to EN 60730)
Approval CE-conformity,
electromagnetic compatibility
according to EN 61326,
EMC directive 2004/108/EC

DOCUMENTS

duct-air-quality-voc-transmitter-qdt

Related products