Sierra 830, 860, 840 Wiring Transducers with 15-Pin D-Connectors, Input Power Connections

Series 830/840/860 Instruction Manual Chapter 2 Installation

Wiring Transducers with 15-Pin D-Connectors

Input Power Connections

Figured 2-9. Input Power (15-Pin D-Connector)

Note: Use separate, dedicated wires for pins 9 and 10 to the power supply com- mon on meters and pins 9,10 and 3 on controllers.

Output Signal Connections

Standard output for all transducers is a 0-5 VDC signal, which di- rectly corresponds to the 0 to 100% mass flow full scale range. Output signals are linear and require a minimum load resistance of 1000 Ohms (4-20 mA output 600 Ohms maximum loop resis- tance).

	1	COM		V or mA
9			–	Panel Meter
10	2	Output	+	PLC or
11	3			Recording
	4
12				Device
13	5
	6
14	7
15	8
Figure 2-10. Output Signal (15-Pin D-Connector)

Notes:

1.Panel meter or read-out device should be wired to be at the same ground potential as the power supply.

2.4-20 mA output signal is ground referenced (“non-isolated”). Warning: Do not apply any external voltage to this loop.

IM-83/84/86-H 2-11