Honeywell C7085A1006, C7085A1014 PRODUCT DATA AND INSTALLATION INSTRUCTIONS
C7085A1006 / C7085A1014
Averaging Temperature Sensors
PRODUCT DATA AND INSTALLATION INSTRUCTIONS
GENERAL
The C7085A Averaging Temperature Sensors are designed
for monitoring temperatures in a variety of applications, and
are available in two different versions:
the C7085A1006, with four PT1000 sensors;
the C7085A1014, with four NTC20K sensors.
Each unit comes complete with a wall socket, a flexible rod, a
0.5-meter-long connector cable, four rod clips (with screws),
and an attachment flange (with self-tapping screws).
The C7085A Mean Temperature Sensors are very easy to
mount: All you have to do is insert the short connector cable
through the mounted flange.
FEATURES
Four sensors (PT1000 or NTC20k) are positioned along the
length of the flexible rod.
The 0.5-m-long connector cable permits fast and easy
insertion of the wall socket into the mounted flange.
APPLICATIONS
These sensors are designed for use as air supply sensors /
dew-point thimbles in ducts where large temperature
gradients can occur, for example
in outdoor air inlets,
downstream from mist collectors,
in mixing chambers,
downstream from humidifiers / cooling units, and
in warm/cool air conduits.
They are used to prevent freezing or to compensate for
possible large temperature differences prevailing over the
duct's cross section. The four sensors distributed along the
length of the flexible rod measure the temperature throughout
the entire cross section of the ducts and determine the
average temperature.
COMMON SPECIFICATIONS
Temperature range -30 °C to +70 °C
Electrical connection Screw clips, wires: 2 x 1.5 mm
Electrical protection class III
2
® U.S. Registered Trademark EN1B-0171GE51 R1003
Copyright © 2003 Honeywell Inc. 7157 684
All Rights Reserved
C7085A1006 / C7085A1014 AVERAGING TEMPERATURE SENSORS
MOUNTING
1. Use the template (see Fig. 1) to drill holes and then
mount the flange.
2. Attach and secure the rod clips. To guarantee that the
average temperature is measured, ensure that the rod
clips are evenly spaced over the entire cross section of
the duct.
3. Attach and secure the wall socket using the self-tapping
screws (included in the shipment) approx. 10 to 15 cm
from the flange (see Fig. 2).
4. Pull the connector cable out through the flange until it
reaches the middle of the sleeve joint. Then tighten up
the flange screw.
5. Secure the flexible rod to the rod clips. The flexible rod
should not touch the duct walls, but should rather
maintain a distance of about 50 mm from them.
Fig. 2. Mounting the C7085A Temperature Sensor
Fig. 1. Template for fixing the duct
SENSOR CHARACTERISTICS
Table 1. Sensor characteristics
specification value
measurement range -30 °C ... +70 °C
resistance
permissible electrical power 1 mA for <0.1 K
sensor time constant 3 minutes at 1 m/s
electrical connection 2 x 1.5 mm
PT1000 1000 ohm at 0 °Cnominal
NTC20K 20 kohm at 25 °C
-30 °C +25 °C +70 °C
PT1000 0.45 0.4 0.65accuracy (in K)
NTC20K 0.85 0.3 0.75
2
NOTE: The four PT1000 / NTC20k sensors are positioned
at the thicker parts of the flexible rod. It is therefore
important that you be careful when bending the rod
at these points. Do not compress or kink the rod at
these points!
Electrical Connection
Connect the sensor as shown in the wiring diagram.
SHIPMENT CONTENTS
The following articles are included in the shipment:
Cardboard box (190 x 135 x 80 mm)
Flexible rod (3 meters long)
Wall socket
Connector cable (0.5 meters long)
Attachment flange (and self-tapping screws)
Four rod clips (and screws)
Automation and Control Solutions
Honeywell GmbH
Böblinger Straϒe 17
D-71101 Schönaich
Phone: (49) 7031 63701
Fax: (49) 7031 637493
http://europe.hbc.honeywell.com
Subject to change without notice. Printed in Germany Manufacturing location certified to
EN1B-0171GE51 R1003
7157 684
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