Temperature Sensors
Platinum RTDs
FEATURES
Linear resistance vs temperature
Accurate and Interchangeable
Excellent stability
Teflon or fiberglass lead wires
Wide temperature range
Ceramic case material
TYPICAL APPLICATIONS
HVAC – room, duct and refrigerant
equipment
Instrument and probe assemblies –
temperature compensation
Process control – temperature
regulation
HEL-700 Series
HEL-700 Series elements are fully assem-
bled, ready to use directly or in probe
assemblies without the need for fragile
splices to extension leads.
The 1000 , 375 alpha version, provides
10X greater sensitivity and signal-to-
noise. Optional NIST calibrations im-
prove accuracy to
±0.03°C
at 0°C.
ORDER GUIDE
HEL-705
HEL-707
HEL-711
HEL-712
HEL-716
HEL-717
28 ga. TFE Teflon, 2-wire only
28 ga. Fiberglass, 2-wire only
28 ga. TFE Teflon (2-wire 1000 , 3-wire 100 )
28 ga. Fiberglass (2-wire 1000 , 3-wire 100 )
24 ga. TFE Teflon (2-wire 1000 , 3-wire 100 )
24 ga. Fiberglass (2-wire 1000 , 3-wire 100 )
Fig. 1: Wheatstone Bridge 2-Wire Interface
-U
-T
1000 , 0.00375 / /°C
100 , 0.00385 / /°C DIN Standard
-0
-1
±0.2%
Resistance Trim (Standard)
±0.1%
Resistance Trim (Optional)
-12
Lead wire length, 12 inches
-00
-C1
-C2
-C3
No NIST calibration
NIST @ 0°C
NIST @ 0 & 100°C
NIST @ 0, 100 & 260°C
Fig. 2: Linear Output Voltage
Temperature
MOUNTING DIMENSIONS
(for reference only)
Fig. 3: Adjustable Point (Comparator) Interface
CAUTION
PRODUCT DAMAGE
The inherent design of this component causes it to be sensitive
to electrostatic discharge (ESD). To prevent ESD-induced
damage and/or degradation, take normal ESD precautions
when handling this product.
Honeywell MICRO SWITCH Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-800-737-3360 Canada
87
HONEYWELL [ HONEYWELL SOLID STATE ELECTRONICS CENTER ]
