MKS T3PIA, Instruction Manual, Page: 21 / 70

Product Location and Requirements Chapter Two: Installation
13
Example 2: Alternate Method to Connect Cable
(shown on a transducer)
Transducer
Overall Insulation
(if present)
Braid Strands Twisted
Under Washer
Keep Wires Flat
Against Case
Optional Plastic or Metal Cable
Clamp (For Physical Strain Relief)
Screw
Split Lock Washer
Flat Washers
External Tooth Lock Washer
Transducer Housing
Figure 2: Alternate Method To Connect an Overall Metal Braided Shielded Cable
Use this method when cable clamp is not available.
Product Location and Requirements
Ambient Operating Temperature
The acceptable ambient operating temperature range for the T3P unit is 20° to 40° C.
Power Requirements
T3P Controller
The T3P requires an input voltage of 24.0 VDC @ 2 Amp. If using heated pressure transducers and the power
is to be supplied for these from the valve, then their power requirements must be added to the valve power
requirements listed above. The T3P can supply up to 750 mA maximum (combined High and Low sensors)
for heated pressure transducers. The input voltage is provided by the power connector. Refer to Table 14,
page 22 for more information.
Note In order to utilize the battery backup function of the T3P Controller, power must be supplied to
the Controller for a minimum of 2 hours to fully charge the batteries. Failure to adequately
charge the batteries may result in incomplete shutdown of the T3P upon power loss.
Analog Pressure Transducer
An analog pressure transducer requires ±15 VDC ±5%, supplied by an external power source or from the
valve. The transducer is connected to the T3P unit using an appropriate interface cable. Contact the MKS
Engineering Department for cable information.
When using an analog transducer, the power is received through the T3P power connector and is passed on to
the transducer through the Sensor connector. Both connectors are located on the top of the T3P unit (refer to
Figure 13, page 32). Refer to Table 11, page 20, for the Auxiliary connector pin out, and Table 12, page 21,
and Table 13, page 22, for the Analog Sensor connector pin out.