Dwyer 650 - Manual

Series 650 Temperature Transmitter
Specifications - Installation and Operating Instructions
Bulletin E-62
The Dwyer Series 650 Temperature Transmitter provides a 4-20 mA
control signal output which varies in linear relationship to the temperature
of the silicon transducer in the sensing probe. The low cost and small size
of the Series 650 Temperature Transmitter make it ideal for a wide variety
of multipoint temperature monitoring applications. Non-polarized power
connections simplify electrical connection to any power source providing
12-35 volts DC.
Models are stocked in three popular ranges, all with factory calibration
within 0.3% and linearity within 0.25% of span. Units can be field calibrated
to limits shown in chart at right. See calibration instructions on page 2 for
procedure.
INSTALLATION
Location: Select a location where the temperature of the unit will remain
between 0° and 70°C. The location must also be within the 7 foot length
of the sensing probe cable. The power supply and the receiving control
device can be located up to several hundred feet from the transmitter itself.
Position: The Series 650 can be mounted in any position. It is advisable
to keep the adjustment screws and connector plug easily accessible for
future re-calibration or service.
Mounting: The Series 650 electronics package can be attached to
mounting surface by means of the five holes provided. Refer to the
dimensional drawing, Figure A for these hole spacings. The small size of
the transmitter electronics package allows it to be mounted inside a
standard household single gang electrical box, if preferred. When mounting
the temperature sensing probe in a sheet metal duct or on other thin walled
enclosures, the use of the Dwyer Model A-325 Duct Mounting Kit is
recommended. Refer to Figure B for details on this arrangement. Other
customer designed probe mounting configurations can be used as long as
the tip of the sensing probe is in the space where temperature is to be
controlled.
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
SPECIFICATIONS
Power Supply: 12-35 volts DC.
Output Signal: 4-20 mA DC.
Voltage Stability: Output error less than 0.01% of span over the specified
supply voltage range.
Linearity: Within 0.25% of span.
Initial Calibration: Within 0.3% of span at 20°C/68°F ambient.
Thermal Drift: Less than 0.5% of span over ambient temperature range of
0-50°C, 32-122°F.
Ambient Operating Temperature (Electronics): 0-70°C, 32-158°F.
Maximum Temperature (Probe): 204°C/400°F.
Probe Construction: 6˝ long, 0.25˝ O.D., Type 304 Stainless Steel.
Note: Special factory calibrated ranges are available within the limits of - 55°C
and + 180°C. Contact factory with specifications for price and availability.
1-53/64
[46.43]
45/64
[17.86]
19/32
[15.08]
5/16 [7.94]
3/16 [4.76]
7/32 [5.56]
2-5/8 [66.68]
13/64 [5.16]
1-5/16
[33.34]
13/64
[5.16]
Ш1/8 [3.18]
1-53/64
[46.43]
45/64
[17.86]
19/32
[15.08]
5/16 [7.94]
3/16 [4.76]
7/32 [5.56]
2-5/8 [66.68]
13/64 [5.16]
1-5/16
[33.34]
13/64
[5.16]
Ш1/8 [3.18]
FACTORY CALIBRATION
MODEL
NUMBER
650-1
650-2
650-3
RANGE AS
STOCKED
-23° to + 10°C
-7° to + 49°C
0° to + 100°C
FIELD CALIBRATION
TOTAL RANGE LIMITS LOW END LIMITS
MIN. SPAN
24°C
37°C
37°C
MAX. SPAN
48°C
150°C
150°C
MIN.
- 32°C
- 12°C
- 12°C
MAX.
- 14°C
+ 6°C
+ 6°C
SERIES 650 TRANSMITTER MODELS & RANGES
To achieve TOTAL RANGE LIMITS above (with 4-20 mA output), the lowest
temperature being sensed (at 4 mA) must be between the minimum and
maximum values under LOW END LIMITS.
FIGURE A
A-325 DUCT MOUNTING KIT
FIGURE B
A-345 FLANGE W/GASKET
650 PROBE
DUCT
[2]#10X1 TYPE A
PAN HD. SHT. MTL.SC
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