Sage SIP, Operation And Instruction Manual

Page: 23 / 68

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
23
S A G E M E T E R I N G , I N C .
AC Powered Prime Remote Terminals (Series SRP) 6
REMOTE
1 RED AC1 COM 1
2 GREEN AC2 B + 2
3
BLUE SPARE A –
3
4 WHITE 4-20mA PWR 24 VDC PULSE 4
5 BLACK VDC IN 4-20mA 5
6
ORANGE VDC GND VDC GND
6
A B C
INSIDE COVER VIEW
NOTE: The Sage Prime
draws 2.4 watts maximum
(i.e.
≅
100ma @24VDC)
– +
C U S TO M E R
R E T U R N
E X T E R N A L LY P O W E R E D
4 – 2 0 m A B Y C U S TO M E R
+
*
DESCRIPTION TERMINALS NOTES
AC Input Power: B1 B2 Connect Ground Wire
115 VAC/230 VAC
AC1 AC2
to Grounding Lug
DC Input Power: B5 B6
24 VDC 7,8
+ VDC – VDC GND
Internally Powered: C5 C6 Do not remove
4-20 mA
4-20 mA Return
any Jumpers
SIGNAL DRIVE
Internally Powered: C4 C6 Do not remove
Pulsed Output
GND
any Jumpers
Externally Powered: C5 B4 Remove B4 & B5
4-20 mA
4-20 mA 4-20 mA
Jumper
SIGNAL DRIVE EXTERNAL SOURCE
Externally Powered
9
: C4 B3 Remove B4 & B5
Pulsed Output
JUNCTION FOR
Jumpers and Connect
PULSE RETURN
C4 Resistive Jumper
to B3
MODBUS C2 C3 C1 Modbus Ground 10
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.
1 Specify the Sage Prime 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 Prime PLUS are
identical to the standard Sage Prime, except other voltage available.
(See footnote 8)
2
It is important to connect the Ground when using Modbus communications, or ground loop problems
may develop. Improper wiring can also damage internal circuitry
3 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)
4 Pulse width 250 msec default (adjustable with Addresser software)
5 Using 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
6 This version does not have Hazard Approvals
7 24 VDC ±10%
8 Other DC voltages (5 VDC, 12 VDC, 48 VDC) available on Prime PLUS. Contact Sage
9 Assumes the 4-20 mA is Externally Powered
10 Modbus Ground becomes isolated from the B6 Power Supply Ground only on Prime PLUS version
(specify “PLUS”)
1
2
3
4
5
6
1
2
3
4
5
6
A B C
INSIDE BODY VIEW
1/2" NPT
User Entry
for Wiring
3/4" NPT for
Remote Cable
(ON REMOTE STYLE SRP)
Grounding
Lug
* *
* *
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
B1 – AC1 – AC VOLTAGE
B2 – AC2 – AC VOLTAGE
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 (–)
1
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
5
C6 – VDC GND – VOLTAGE DC – GROUND (–)
24
O
24
O
**Note, Flow Meter is supplied with a 10K
(1/2 watt) metal film resistor (Resistive
Jumper) connected across Terminals C4 and
C6. For externally powered operation, in
addition to 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!