13
hydro-guard
®
remote Pressure Monitoring System
Battery replacement and Technical Information
NOTE: Be sure to connect similar
color wires.
4. Reinsert the antenna wire retainer.
5. Reattach the ten (10) screws.
NOTE: Unit includes Lithium
batteries which should be
returned to Mueller Co. for proper
disposal. Return instructions will
be provided with replacement
parts. Contact Mueller Customer
Service for assistance.
Other Options
Optional Valve Box Lengths:
• 3’, 5’, 7’, 9’
Service Saddles:
• Bronze Double Strap (up to
200psig)
• Ductile Iron Double Strap (over
200psig)
• Bronze OD Controlled for PVCPipe
(up to 200psig)
Pressure Sensors:
• Up to 250psig
• Pressures over 250psig*
*Indicates Standard Option
Batteries are field replaceable and
can be ordered through Mueller
Company. DO NOT disassemble the
RTU until the replacement batteries
have arrived with replacement
instructions included. Contact
Mueller Customer Service for safe
handling and return instructions for
used batteries.
WARNING: Battery must be
replaced by a qualified electrical
technician. Contact Mueller Co.
for additional support.
1. Remove ten (10) screws to
separate the battery compartment
from the antenna and micro
computer.
2. Carefully slide out the antenna
wire retainer from the battery
compartment so that the antenna
wires are free.
3. Disconnect battery lead connectors
and reconnect new battery pack
using the mated connectors on the
replacement battery. Ensure wires
are securely connected before
moving to step 4.
Battery Life: Five (5) Year minimum
when recommended settings are
utilized.
Pressure Range: 0 to 250psig.
Standard Sensor Pressure (0 to
250psig) Over Pressure: In the
event that the pressure exceeds
250psig, per the manufacturers
specification, the the overpressure
rating of the sensor is 700psig;
however, the sensor may be
damaged should pressure exceed
500psig. The RTU will only identify
pressures up to 250psig.
Battery replacement
!
5
4
3
2
1
id numBeR
descRiption
1
Antenna and Lid
2
Battery
3
Power Wires
4
Antenna Wire Retainer
5
Micro Computer
6
Connectors
12
§
Operating Temperature Range:
–30°F to 150°F.
Pipe Diameter Range: ½” or larger.
Default Sampling Range: 1 sample
every 15 seconds.
Transient Pressure Monitoring:
Scheduling of transient monitoring is
available with this product. Transient
pressures will be measured at a
rate of 256 samples per second
for a scheduled period of time as
defined by the operator. Mapping
of transient-state data points will
be less than 256 data points. Data
mapping is dependent upon volatility
of transient activity.
Resolution: 12-bit
Accuracy: +/– 2psi (250psi sensor)
+/– 5psi (500psi sensor)
NOTE: Some settings outside of
the recommended settings may
reduce expected battery life.
technIcal InformatIon
6
