Product guide

47
Humidity and Dew-Point Instruments
Please note: Michell Instruments adopts a continuous development program which sometimes
necessitates specifi cation changes without notice. Please contact us for latest version.
www.michell.com
Precision Manufacturing
Accessories and Spare Parts
19mm (0.75") Slotted protection cap black A000002
19mm (0.75") PVDF fi lter A000014
19mm (0.75") PVDF fi lter w/ protection cap black A000015
19mm (0.75") Mesh fi lter w/ protection cap black A000021
19mm (0.75”) Arrow SS sintered fi lter 5m / 10m / 20m A000025/26/27
19mm (0.75") connector, no cable, w/screw terminal A000030
19mm (0.75”) Connector, with cable (customer spec length) A000030XM
19mm (0.75") connector with 2m (6.5') cable A000031
19mm (0.75") connector with 5m (16') cable A000032
19mm (0.75") Foil fi lter 2m w/protection cap black A000040
19mm (0.75”) Oleophobic foil fi lter 0.7m with protection
cap black
A000042
19mm (0.75") Foil fi lter 1.5m w/protection cap black A000044
3/4" NPT SS adj. fi tting for SS probes A000100
Al mounting fl ange for ø19mm (0.75") SS probes (outside
ø80mm (3.15"))
A000110
You can check your hygrometer with the Control Kit HKC
which is based on the principle of non-saturated salt
solutions. Refer to technical data sheet CONTROL KIT
HKC
DT722
Rugged Industrial Relative Humidity and Temperature Transmitter, Duct
Mount
The DT722 is a rugged industrial relative humidity and
temperature transmitter designed for process applications
where accurate, stable measurement and control of humidity
and temperature is required.
Highlights
• Designed for accurate measurement in a harsh
environment
• Can withstand temperatures up to 150°C (300°F)
• Stainless steel housing
• Calculated moisture signal output, optional
Technical Specifi cations
Performance
Measurement range (RH) 0–100% RH
Measurement range (T) -40 to +150°C (-40 to +302°F)
Accuracy at 25°C (77°F)
Humidity
<±2% RH (5-95% RH)
Accuracy at 25°C (77°F)
Temperature
±0.2°C (±0.36°F) typical
Stability – RH Sensor ±1% RH/year
Response time – RH Sensor <10 sec typical (for 90% of the step
change)
Electrical output/input
Output signal 4–20 mA
Supply voltage 8–35 V DC
Supply voltage infl uence ±0.01% RH/V typical
Operating conditions
Operating temperature
Probe
Housing
Storage
-40 to +150°C (-40 to +302°F)
-30 to +70°C (-22 to +158°F)
-40 to +75°C (-40 to +167°F)
Mechanical specifi cation
Ingress protection IP65 (NEMA 4 level)
Housing material Stainless steel
Weight 200mm: 800g (7.87”: 28.22oz)
300mm: 900g (11.81”: 31.75oz)
500mm: 1040g (19.69”: 2.29lb)
Electrical connections 4 pin, M12
Issue No: DT722_97191_V2_UK_1110
Dimensions