Sage RIO SIX Instruction Manual Download

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DISPLAY VIEW

S A G E M E T E R I N G , I N C .

O p e r a t i o n s a n d I n s t r u c t i o n M a n u a l

24 VDC Rio Remote Terminals (Series SRX)

(APPROVED FOR HAZARDOUS SERVICE

)

INSIDE COVER VIEW

NOTE: The Sage 24 VDC Rio
draws 2.4 watts maximum
(i.e.

≅

100ma @24VDC)

–

C U S TO M E R

R E T U R N

DESCRIPTION

TERMINALS

NOTES

DC Input Power:

24 VDC

7,8

+ VDC

– VDC GND

Internally Powered:

Do not remove

4-20 mA

4-20 mA

Return

any Jumpers

SIGNAL DRIVE

Internally Powered:

Do not remove

Pulsed Output

GND

any Jumpers

Externally Powered:

Remove B4 & B5

4-20 mA

4-20 mA

Jumper

SIGNAL DRIVE

EXTERNAL SOURCE

Externally Powered

Remove B4 & B5

Pulsed Output

JUNCTION FOR

Jumpers and Connect

PULSE RETURN

C4 Resistive Jumper
to B3

MODBUS

Modbus Ground

RS485(+)

RS485(–)

MODBUS GROUND

REQ’D)

*B4 and B5 JUMPER
Remove jumper for Externally Sourced 4-20
mA. In this mode, user supplies 9-27 Volts to
externally power the 4-20 mA loop, and the
4-20 mA loop becomes optically isolated.
On units with HART this jumper has been
removed at the factory.

Specify the Sage Rio PLUS option in order to have the Modbus Ground (Terminal C1, COM) isolated
from the 24 VDC Sage Power Supply Ground (Terminal B6). All other features of Rio PLUS are identi-
cal to the standard Sage Rio, except other voltage available.

(See footnote 8)

It is important to connect the Ground when using Modbus communications, or ground loop problems
may develop. Improper wiring can also damage internal circuitry

Note,

if customer externally powers the 4-20 mA by removing the jumper, the Pulse voltage output

is also effected: The voltage output of the Pulse will follow the customer power (i.e. 24 VDC external
power will result in a 24 VDC Pulse [maximum of 50 mA]; 12 VDC external power will result in a
12 VDC Pulse)

Pulse width 250 msec default (adjustable with Addresser software)

Using HART or Sage Addresser, a Low Flow Cutoff (LFC), commonly referred to as Min Cutoff or Zero

Cutoff can be entered into the FLOW MIN Functions. In Versions 1.82 or higher, the Low Flow Cutoff
and the 4-20 mA Scaling are independent of each other. For example: A Low Flow Cutoff (LFC) of
10 SCFM on a Meter with a Full Scale of 100 SCFM will report 0 on the Display and 4 mA on the
output. The output will remain at 4 mA until the LFC is exceeded: (ie: 25 SCFM=8 mA). Thus the
4 mA will always be zero based

ATEX II2G, Ex d IIB+H2 T6 Gb

24 VDC ±10%

Other DC voltages (5 VDC, 12 VDC, 48 VDC) available on Rio PLUS. Contact Sage

Assumes the 4-20 mA is Externally Powered

Modbus Ground becomes isolated from the B6 Power Supply Ground only on Rio PLUS version
(specify “PLUS”)

* *

**Along with removing B4 & B5 Jumpers, it
is necessary to connect C4 Resistive Jumper
to Terminal B3 instead of C6. Note, B3 must
be connected to the External Sources com-
mon in order to enable the optically isolated
Pulse Output. In this mode, Pulse Output is
optically isolated. Pulsed Output voltage will
depend on customer source voltage. Use
Sage Resistive Jumper only!

3/4" NPT

ser Entry

for Wiring

(ONE ON EACH SIDE)

A1 – RED – VELOCITY SENSOR WIRE (HEATED ELEMENT)
A2 – GREEN – SENSE WIRE
A3 – BLUE – VELOCITY SENSOR WIRE (HEATED ELEMENT)
A4 – WHITE – TEMPERATURE SENSOR WIRE
A5 – BLACK – SENSE WIRE
A6 – ORANGE – TEMPERATURE SENSOR WIRE

B3 – JUNCTION FOR ISOLATED PULSE
B4 – 4-20 mA RETURN (–) AND PULSE SOURCE
B5 – VDC IN – VOLTAGE DC – POSITIVE (+)
B6 – VDC GND – VOLTAGE DC – GROUND (–)

C1 – COM – RS485 MODBUS GROUND

1,2

C2 – B(+)–RS485_D1
C3 – A(–)–RS485_D0
C4 – 24 VDC PULSE – 0 TO 24 VDC PULSE OUTPUT

3,4

C5 – 4-20 mA – 4 TO 20 mA SIGNAL DRIVE

C6 – VDC GND – VOLTAGE DC – GROUND (–)

rounding

Lug

3/4" NPT for

Remote Cable

(on Remote Style SRX)

Power
Switch