Emerson 2700, 1700 Rmax = Vsupply - 12/0.023, Output Wiring - Intrinsically Safe, Specifications

Output Wiring – Model 1700/2700 Intrinsically Safe Transmitters

Figure 5-2Safe area mA output load resistance values

Rmax = (Vsupply – 12)/0.023

If communicating with HART, a minimum of 250 Ω and 17.5 V is required

	1000
	900
	800
(Ohms)	700
	600
load
R	500
resistor
	400
External	300					OPERATING REGION
	200
	100
	0
	12	14	16	18	20	22	24	26	28	30

Supply voltage VDC (Volts)

Figure 5-3Safe area HART/analog single-loop wiring

			+
	VDC	+	–
		–
			mA1
			HART-
			compatible host
Rload			or controller
(250–600	Ω
resistance)

Note: See Figure 5-2for voltage and resistance values.

Output Wiring – Intrinsically Safe

Output Wiring – Configurable I/O Output Wiring – Fieldbus/PROFIBUS

Specifications

Installation Manual 35