38059-Satchwell Inter. Guide 05

Pipe Temperature Sensors
DST 0001
Water Temp.
Sensor (surface)
DWT 0001
Water Temperature
Sensor
(immersion)
DWT 0002
Fast Response
Water Sensor
(immersion)
The DST 0001 permits the monitoring and control of fluid
temperature through its specially designed thermistor
housing. Its simple installation promotes its flexible use for
temporary or permanent monitoring/control applications.
FEATURES
• Allows direct mounting to pipe surface, allowing any
point to be monitored
• Easily fitted, making it perfect for permanent or
temporary situations
• Simple commissioning
This sensor simplifies product selection and improves control
loop performance with its unique probe assembly. The shaft
is simply extended and inserted into the pocket, ensuring a
good contact. The sensor can be used with a vast range of
other manufacturer’s pockets when used in conjunction with
the pocket adaptor DWA 0001. The use of the adaptor
avoids system drain downs and costly down time.
FEATURES
• Variable stem length - 100mm to 330mm
• Sensor crown ensures good thermal contact with
pocket end
• Fast response
• 120mm brass pocket (DWA 0005) and heat conductive
paste supplied as standard
• Simple commissioning
The DWT 0002 sensor is designed for use in the most
demanding control schemes. Many modern applications call
for above average performance and this device is key to
stability and efficiency. The sensing element is encased in the
optimum amount of high quality stainless steel, permitting
ultra fast detection of temperature change.
FEATURES
• Very fast response to temperature change
• Small probe diameter for direct insertion into small pipes
• Stainless steel probe
• Simple commissioning
PRODUCT SELECTION Satchwell Sensors
Duct Temperature, Temperature/humidity, Carbon Dioxide & Pressure Sensors (cont)
DDCO
Infrared Analyser
CO 2 Sensor
DDV
Air Velocity Sensor
The DDCO is a non-dispersive infrared analyser designed for
measuring environmental CO2 concentration in ventilation
systems and indoor living spaces. Its measurement range of
0...2000 or 0...5000 ppm covers the range required to
monitor compliance with ASHRAE or other ventilation
efficiency standards.
An LCD display is available to provide local indication of CO2 concentration and facilitate the setup and calibration
process. An adjustable setpoint relay is available for direct
control and alarm applications. Microprocessor-based digital
electronics and a unique self-calibration algorithm improves
long-term stability and accuracy.
The DDV gives a 0...5Vdc output over a range of 0.4...10 m/s.
The velocity range may be limited if required to give greater
resolution. On its minimum setting the range is
approximately 0.4 to 4 m/s.
24
Measurement Repeatability Operating Input Analogue output
range (selectable) temp. voltage (selectable)
DDCO 2602 0...2000 or ±20 ppm 0...50°C 20...30V 0...5Vdc,
0...5000 ppm ac/dc 0...10Vdc
or 4...20mA
Data Sheet 1.601
Protection class - IP 65
Accuracy - ±75 ppm
Response time -