Emerson IFT9701 1Wire guidelines for DC power supply, 4.4Connect output wiring, Wire size

Power Supply and Output Wiring continued

Table 4-1 Wire guidelines for DC power supply

Wire size		Wire length
16	AWG (1,5 mm²)	1500 feet (450 meters)
18	AWG (0,75 mm²)	1000 feet (300 meters)
20	AWG (0,5 mm²)	600 feet (200 meters)

4.4Connect output wiring

•Figure 4-2 shows the milliamp and pulse output terminals.

•Install twisted-pair, shielded cable, consisting of 20 AWG (0,5 mm²) to 16 AWG (1,5 mm²) wire.

•For basic information on milliamp output wiring, see Section 4.4.1.

•For instructions on connecting the milliamp output to a Bell 202 multidrop network, see Section 4.4.2.

•For instructions on connecting a HART device to the milliamp output, see Section 4.4.3.

•For instructions on pulse output wiring, see Section 4.4.4.

Figure 4-2 Output wiring terminals

Active milliamp output	Passive pulse output
Internally powered	Requires pull-up resistor
	to external 5–30 VDC
	power supply

Conduit opening for output wiring

Field wiring compartment

	Sensor wiring
Case ground	compartment

•Terminate output cable shielding at gland or conduit fitting.

•360° termination of shielding is not necessary.

•Do not terminate shield inside wiring compartment.

•The pull-up resistor must be of sufficient value to limit the total loop current to less than 500 ohms. Refer to Section 4.4.4 to determine the pull-up resistor needed.

Before You Begin

Getting Started

Mounting the Remote Transmitter

Power Supply and Output Wiring

Model IFT9701 Transmitter Instruction Manual 21