2
Wiring the Scanner 2000
CAUTION—All field wiring must conform to the National
Electrical Code, NFPA 70, Article 501-4(b) for installations within
the United States or the Canadian Electric Code for installa-
tions within Canada. Local wiring ordinances may also apply.
All field wiring must have a wire range of 22 to 14 AWG and
terminal block screws must be tightened to a minimum torque
of 5 to 7 in-lbs. to secure the wiring within the terminal block.
Only personnel who are experienced with field wiring should
perform these procedures.
WARNING—To prevent ignition of hazardous atmospheres, do
not remove the cover while circuits are alive. Under normal
conditions, the Scanner 2000 microEFM poses no hazard when
opened in a safe area.
SWITCH
J1
TB1
BATTERY
13
14
J2
SCANNER 2000
Main Circuit Board
PN: 30160010
TF
M 1
R
TD
I
+
R
+
R
-
I
-
–
+
2
3
4
5
6
1
P
O
W
E
R
P
O
R
T 2
P
O
R
T 1
–
+
–
+
–
+
7
8
9
10
11
12
TB2
TB3
DIG OUT 1
TB2
PO
W
ER
PO
R
T 2
PO
RT
1
6 TO 30 VDC
POWER SUPPLY
–
+
–
+
–
+
7
8
9
10
11
12
EXTERNAL POWER INPUT
TB1
TF
M1
R
T
D
–
I
+
+
R
+
R
-
I
-
2
3
4
5
6
1
+
RTD
RTD
-
WHITE
RED
WHITE
RED
I-
I
+
RTD INPUT
TURBINE INPUT
R
TD
TURBINE
MAGNETIC
PICKUP
B
A
TB1
TF
M1
–
I
+
+
R
+
R
-
I
-
2
3
4
5
6
1
BLACK
RED
DIGITAL OUTPUT
13
14
Leave this
end of shield
disconnected.
POWER SUPPLY
5 to 30 VDC
Resistor may be included in pulse readout
device. Size the resistor to limit the current
to 60 mA.
PULSE READOUT
DEVICE
TB3
Field wiring enters the Scanner 2000 microEFM through either of two
¾-in. NPT conduit openings in the enclosure and connects to three
terminal blocks on the main circuit assembly (TB1, TB2 and TB3). For
instructions on wiring an optional expansion circuit board, see the
Scanner 2000 Hardware Manual.
RS-485 TO RS-232 CONVERTER
TX+
TX
-
TB2
PO
W
ER
PO
R
T
2
PO
RT
1
–
+
–
+
–
+
7
8
9
10
11
12
TD(B)
TD(A)
GND
Part No. 9A-101283116
PORT 1 OR PORT 2 CAN BE
CONNECTED TO THE 232/485
CONVERTER
RS-232 9-PIN CONNECT
OR
232/485
CONVERTER
Scanner/Laptop Connection Options
Scanner 2000 microEFMs connect to a laptop three ways:
•
using an optional USB adapter and user-supplied USB cable
(external port for easy access)
•
using an RS-485 to RS-232 converter cable (wires to circuit board)
•
using an optional COM adapter and RS-485 to RS-232 converter
cable (external port for easy access)
TX+
TX
-
TB2
PO
W
ER
PO
R
T
2
PO
RT
1
–
+
–
+
–
+
7
8
9
10
11
12
TD(B)
TD(A)
GND
Part No. 101283116
PORT 1 OR PORT 2 CAN BE
CONNECTED TO THE 232/485
CONVERTER
RS-232 9-PIN CONNECT
OR
232/485
CONVERTER
USB ADAPTER (OPTIONAL)