All specifications are subject to change. Contact MTS for specifications and
engineering drawings that are critical to your application. Drawings contained
in this document are for reference only. Go to http://www.mtssensors.com for
the latest support documentation and related media.
M-Series Model MR Transmitter Electronic Module Removal and installation instructions
Level Plus
®
Magnetostrictive Liquid-Level Sensors
with Temposonics® Technology
M-Series Model MR
Transmitter with Analog Output
Electronics Replacement Instructions
SENS
RS
®
Document Part Number
550731 Revision E
The Level Plus®Model MR level transmitter is modular in design. The
electronics module can be replaced in the field without on site MTS
applications engineering support.
Before you begin
• Ensure that all power is disconnected
• Follow all lockout procedure(s) are followed prior to opening
the transmitters instrumental housing.
To replace the M-Series electronics module, complete the following
steps:
1. Remove any dirt, debris, or liquid from the top of the instru
ment enclosure.
2. Remove the instrument housing cover.
3. Remove the existing transmitter electronics module, or puck,
by grasping the perimeter of the puck and pulling it firmly
upwards away from the base.
4. Install the new puck by aligning the connectors at the bottom
of the puck with the appropriate connectors in the base of the
instrument enclosure. Using even pressure on the face of the
puck, press down firmly. Check that the puck is replaced
correctly, by pressing down around on the perimeter of the
puck face. The puck should feel secure and not “rock”.
5. Refer to the M-Series Operation and Installation Manual, part
number 550720, (available at www.mtssensors.com) for
calibration and setup instructions.
6. Replace the instrument housing cover.
Loop 1 Test
+ — Loop 2 Test
+ —
HART
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Loop 1 test port Loop 2 test port
HART test port
Up Key Enter Key
Down Key
Custom LCD Display
Level Plus®
M-Series Transmitter
Model MR Rigid Transmitter
Single-Cavity Housing
