Time Mark 450 Data Sheet
TIME MARK is a division of
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GND
4-20mA+24VDC
MODEL 450
Pressure Transducer
0-15 PSI air pressure input
4-20mA output
Bubbler type system
Can be used with any controller
requiring a 4-20mA input
5 Year Unconditional Warranty
DESCRIPTION
The Model 450 Pressure Transducer provides the
input signal for the 4042 Controller. A 0-15 psi input
causes the 450 to output a proportional 4-20mA signal.
The Model 450 can be mounted directly into the Model
4042 or it can be remotely mounted in an octal socket
for use with any controller accepting a 4-20mA input.
PIN DRAWING
DIMENSIONS
SPECIFICATIONS
Model 450
Input voltage 24VDC
Power consumption 1 watt maximum
Air pressure input 0 to 15 psi
Max. air pressure 30 psi
Input air supply fitting requires 3/16” i.d. tubing
Repeat accuracy ±1%
Signal output 4-20mA proportional to 0-15 psi
Max. load resistance 500 ohms
Compensated temperature 32° to +158° F
Operating temperature -13° to +185° F
Humidity tolerance 0-97% w/o condensation
Case material ABS plastic
Termination *8-pin octal socket
Weight 3 oz.
Agency Approvals
(in water; 0-15 psi = 0-34.6 feet at +77° F)
UL Recognized (U.S. & Canadian)
*Order 8-pin socket number 51X120
11/2011
© 2011 TIME MARK CORPORATION
Wet
Well
Air
Pump
Model
450
TIME MARK is a division of
MODEL 450
Pressure Transducer
READ ALL INSTRUCTIONS BEFORE INSTALLING, OPERATING OR SERVICING THIS DEVICE.
KEEP THIS DATA SHEET FOR FUTURE REFERENCE.
GENERAL SAFETY
POTENTIALLY HAZARDOUS VOLTAGES ARE PRESENT AT THE TERMINALS OF THE MODEL 450.
ALL ELECTRICAL POWER SHOULD BE REMOVED WHEN CONNECTING OR DISCONNECTING WIRING.
THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.
Installation Instructions
WARRANTY
INSTALLATION
Mount the 8-pin socket for the model 450 in a suitable
enclosure. A NEMA-1 rated enclosure, designed for
socket-mounted devices, is available from Time Mark
(part no. 98A498).
Connect the wiring as shown on the pin drawing or the
front of the unit.
Connect a 3/16” I.D. tubing to the input air supply fitting
on the front of the unit. No connection is required on
the reference fitting. Connect the other end of the tubing to the air compressor and the tank or well
(see figure 1).
Figure 1 Model 450 Application
This product is warranted to be free from defects in materials
and workmanship, and is covered by our exclusive 5-year
Unconditional Warranty. Should this device fail to operate
for any reason, we will repair it for five years from the date of
manufacture. For complete warranty details, see the Terms
and Conditions of Sales page in the front section of the Time
Mark catalog or contact Time Mark at 1-800-862-2875.
11/2011
© 2011 TIME MARK CORPORATION
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