Signet 9900 Operating Instructions Manual page 16

Sensor Wiring
Wiring for: 4150
via 8058-1
+
EMCF1
RLY2
TB2
ALARM2 ALARM1
+
24 VDC
TB4
ISL 1
+
Power
Connection
via 8058-2
+
EMCF1
RLY2
TB2
ALARM2 ALARM1
+
24 VDC
TB4
ISL 1
+
Power
Connection
16 9900 Transmitter
Q2
R2
+
D2
D1
R3
Q1
R4
R1
RLY1
TB1
TB3
+
+ –
SHLD
B A
4-20mA/
RS-485
L1
L7
L2
WHT
RED
L5
ORG BRN
L3
BLK GRN
L7
SHLD YEL
+
L4
Black
Shield
Red
Q2
R2
+
D2
D1
R3
Q1
R4
R1
RLY1
TB1
TB3
+
+ –
SHLD
B A
4-20mA/
RS-485
L1
L7
L2
WHT
RED
L5
ORG BRN
L3
BLK GRN
L7
SHLD YEL
+
L4
Black
Red
9900
S L Inputs
3
Input
4-20 mA
Technical Notes:
When using the 8058-2, connect the
loop source to Channel 1 input ONLY.
+GF+ SIGNET
3 2 1
6 5 4
Loop1
PWR 9900
S 3 L Inputs
Loop2
PWR
3
S L
DATA
N/C
7 8 9
White (Gnd)
Red (S
Black (5 VDC)
Signet Turbidimeter
Connect 4 to 20 mA wires to
terminal board TB3 as shown in
the fi gure.
Refer to the latest revision of
the Signet 4150 Turbidimeter
Manual (3-4150.090) for further
information.
Technical Notes:
• All of the electrical
connections to the
instrument are made
through the terminal box.
The connections are labeled
within the terminal box and
are self-descriptive.
• A plug is inserted into the
RS-485 cable bulkhead
when shipped to ensure a
watertight seal. Remove
and discard this plug when
cabling to this connection.
• The bulkhead will accept
cable diameters from
5.8 mm (0.23 in.) up to
10 mm (0.34 in.).
The terminals are designed to
accept wires in the range of
14-28 AWG. All wires should
be stripped to a length of
6 mm (0.25 in.).
• Ensure that the watertight
seal is maintained after the
terminal box has been wired
for operation. If any of the
bulkheads are not tightened
properly around a cable
or plug, the ratings of the
instrument will be jeopardized
and there is a possibility of
creating a shock hazard.
• Do not run 4 to 20 mA cables
3
L)
in the same conduit as power.
ENTER