Rice Lake MSI-9850 CellScale RF Digital Indicator - Operator Manual - Manual (Page 12)

Page 12 MSI-9850 RF Remote Indicator • User Guide
MSI-9850
HANDHELD RF REMOTE INDICATOR for
C
ELL
S
CALE
®
MAIN POWER INPUT
The 9850 is powered by AC or three choices of DC inputs.
Universal AC Supply
The universal AC Supply is suitable for mains inputs from 86 to 265VAC, 47-440 Hz. The 9850 can be ordered
with a standard US Cord (NEMA 5-15 Plug) or an unterminated AC Cord for direct panel wiring or adding a
country specific AC Plug. Always connect the ground wire (Green or Green/Yellow Stripe) to an Earth Ground.
The 9850 Chassis is connected to earth ground.
Color Code, International Cord:
Brown Connect to Hot (L)
Blue Connect to Neutral (N)
Green/Yellow Stripe Connect to Earth Ground
Color Code, US Cord (SJOOW):
Black Connect to Hot (L)
White Connect to Neutral (N)
Green Connect to Earth Ground
The universal AC Supply can also be used for High Voltage DC inputs. In this mode it is rated from 120VDC to
370VDC. The ground wire must be connected to earth ground. When connecting to high voltage DC sources, MSI
suggests a line conditioner to filter large spikes generated by motors and contactors. Use the Hot wire to connect
to the positive high voltage terminal. Use the Neutral wire for the DC return.
For installations that might have intermittant power interuptions (such as bridge cranes), we suggest a battery is
connected to the Aux Power input to provide uninterrutible power. The battery should output less voltage than the
main supply, so that it will not drain in normal use. With the internal AC supply (15V), a 12V Sealed Lead Acid
is a good choice. However, the Aux Power input will take over when the main power is shut down, so the user
must turn off the 9850 (or use the auto power down modes) to prevent discharging the backup battery.
The 9850 Contains Hazardous Voltages. Always disconnect power before opening the enclosure. In
operation, the chassis must be properly grounded through the power cord safety ground.
The 9850’s internal AC Supply is fused. Panel fusing, if necessary, can be as small as .25A @115VAC or .125A @
230V. Due to power on surge currents, slightly increased fuse ratings might be needed, or use a slow or medium
blow fuse type. Total input power consumption of the 9850 is below 15 watts, and is typically 7-8 watts.
Direct DC Supply, 7-25V
The direct DC supply is not isolated and is primarily intended for battery or 12V vehicle power. It is NOT suitable
for 24V batteries or vehicles due to charging voltages that exceed the maximum input voltage. However, 24VDC
industrial supplies are suitable, as long as they are well regulated.
The DC input cord, in order to have suitable environmental ratings, uses AC cordage (SJOOW). Do not wire to
any AC source.
Color Code:
Black Connect to 7-25Vdc Positive Terminal
White Connect to 7-25Vdc Negative Terminal
Green Connect to Earth Ground.
The negative input and earth ground are shorted internally in the 9850.
The 9850’s Direct DC Supply is protected with self-resetting Polymer Fuses. Panel fusing, if necessary, shoud be
1.5A @12Vdc or 3/4A @ 24V. Due to power on surge currents, slightly increased fuse ratings might be needed,
or use a slow or medium blow fuse type. Total DC input power consumption of the 9850 is below 12 watts, and
is typically 7-8 watts.
Isolated DC Supply, 9-36Vdc or 18-72Vdc
The Isolated DC supply is available in two ranges. Choose the 9-36Vdc range for 24Vdc Vehicles. Choose the
18-72V range supply high voltage vehicles and 48V systems. The DC input cord, in order to have suitable envi-
ronmental ratings, uses AC cordage (SJOOW). Do not wire to any AC source.
Color Code:
Black Connect to Supply Positive Terminal
White Connect to Supply Negative Terminal
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