Mounting Remote indicator
Summary Remote Indicator models can be attached to a two-inch (50.8 millimeter)
vertical or horizontal pipe using Honeywell’s optional pipe mounting bracket. Honeywell’s
optional wall mounting bracket is also shown in figures below.
Mounting Dimensions
Refer to Honeywell drawing number 51455045
*
for detailed electronic housing
dimensions. Refer to Honeywell drawing numbers 32306827
*
for detailed pipe mounting
dimensions, 50124813
*
for Detailed Pipe Angle mounting dimensions and 32306828
*
for
detailed wall mounting dimensions.
THE TRANSMITTER ENCLOSURE CAN BE ROTATED A TOTAL OF 90° FROM THE
STANDARD MOUNTING POSITION
* Honeywell drawings can be supplied on request.
Bracket Mounting
If you are using an optional bracket, start with Step 1.
1.
Pipe Mount Option -Refer to Figure 2
.
Align the two mounting holes at the
bottom of the Remote Indicator with the two slots in the mounting bracket
and assemble the (2) M8 hex cap screws, (2) lock washers and (2) flat
washers provided.
2.
Rotate the Remote Indicator assembly to the desired position and torque the
M8 hex cap screws to 27,0 Nm/20,0 Lb-ft maximum
3.
Position the bracket on a 2-inch (50.8 mm) horizontal or vertical pipe, and
install a
“U” bolt around the pipe and through the holes in the bracket.
Secure the bracket with (2) M10 hex nuts, (2) flat washers and (2) lock
washers provided. Refer to Figure 4
.
Figure 2: Typical Pipe Mounted Installations
Figure 3: Mounting Bracket Secured to a Remote indicator
Figure 4: Pipe Mounting Bracket Secured to a Horizontal or Vertical Pipe
4.
Wall Mount Option
– Refer Figure 5 Position the bracket on the mounting
surface at the desired location and secure the bracket to the mounting
surface using the appropriate hardware (Wall mounting hardware
requirements to be determined and supplied by the end user).
Figure 5: Remote Indicator Secured to a Wall Mounting Bracket
Wiring a Remote Indicator
Overview
The Remote Indicator is designed to operate in normal 4-20mA analog mode with HART
enabled transmitters across SmartLine Devices. In DE mode, only STT250 and STT700
Honeywell SmartLine transmitters.
For improved noise performance, it is recommended to provide earth ground for both
transmitter and RMA housing.
Figure 6: DE/ANALOG Terminal Block
Figure 7: RMA801 Terminal Block
Terminal Block
The RMA801 has 3 terminals. Following table provides the connection details-
Three screw terminals suitable for wirings up to (16AWG)
Shielded, twisted-pair cable such as Belden 9318 or equivalent must be used for
all signal/power wiring.
The cable shield must be connected at only one end of the cable. Connect it to
the power supply side and
leave the shield insulated at the transmitter side
and RMA side.
Loop Terminals 5 & 6 shall be connected in series with the 4-20 ma loop for both analog
and DE modes. Additionally, third wire (Terminal 9) is required for DE communication in
DE mode only.
Loop wiring for analog and DE mode is shown in figure below.
NOTE:
After wiring the Transmitter as outline in the next sections, torque the screws to
1.1 Nm (10 lb-in)
Terminal No.
Description
5
Loop +ve
6
Loop -ve
9
DE COMM
