Veeder-Root SERIES 7886 User Manual

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
Figure 3. External View of Series 7886 High-Capacity Meter Register.
SECTION 3. SERIES 7886 DESCRIPTION
A. GENERAL.
1. Physical. The Series 7886 High-Capacity Meter Register,
Figure 3, displays a running account, final total and
accumulated total of the quantity of liquid product
delivery. Contained in a 4" x 10" diecast enclosure,
individual delivery data is displayed on six 5/8" high
figures while totalizer information is recorded on eight
1/8" high figures. Reset of the Meter Register is accom
plished through a reset knob on the right-hand side of the
unit.
2. Operational. The Meter Register is operated by a drive
shaft connected to a group of gears on the gear plate
which converts the drive revolutions to the appropriate
ratio. The output bevel gear of the group drives a bevel
gear, Figure 5, which is connected to the drive shaft and
clutch assembly. In rotating, this shaft drives agear on the
clutch assembly which in turn drives a gear on the right
(unit) wheel assembly. Revolutions are then accumulated
on the wheels. In addition, this rotating shaft also drives
the bracket group connected to the accumulative totalizer
shaft, thus both displays are driven from the same source,
assuring accurate recording of information. During the
reset operation, the clutch is disconnected from the drive
shaft, a shutter moves into place covering the display
wheels and reset fingers engage heart-shaped cams on the
individual wheels to move them back to a zero position. In
addition, a set of anti-topping fingers engages the wheels
to prevent jamming. At the completion of reset, the display
wheels will read all zeros, and the shutter will rise to the
normal operating position. The clutch will engage the
drive shaft to transfer the information from the next
delivery. The totalizer wheels will be unaffected by this
reset operation, thus displaying an accurate measure of
the accumulated totals of many deliveries.
B. SPECIFICATIONS.
Specifications listed are standard unless otherwise noted.
Optional features are available at additional cost.
Speed: 250 rpm.
Torque: Average running torque at room temperature with
1:1 input: 4 oz-in. During display wheel transfer from all 9's
to all 0's, the instantaneous peak torque may reach 40
oz-in.
Operating Temperature Range: -40° to +71°C (-40° to
+ 160°F).
Number of Figures: Meter Register: 6. Accumulative
Totalizer: 8
Size of Figures: Meter Register: 0.625" high x 0.300" wide
(15.87 x 7.62 mm). Totalizer: 0.125" high x 0.078" wide
(3.175x1.98 mm).
Color of Figures: White on black, except right-hand totalizer
wheel which is black on white when recording tenths of
units, and white on black when recording whole units.
Style of Figures: Veeder-Root/Cornell for optimum read
ability.
Character Configuration: 0 to 9 (options available).
Reset: Single handle on register. Designed for one-handed
operation.
Mounting: Eight 1/4 x 28 tapped holes with steel inserts on a
6.625" (168.28 mm) diameter. Special adaptors are
available for nearly all meters.
Construction: Cover: cast aluminum. Case and sub frame:
cast Zamak. Wheels, pinions, and clutch: acetal resin.
Gearing: 1:1 is standard. 1:1 through 42:1 are available.
Lubrication: Periodic.
OPTIONS
Nonreset Pulser: Meter Register with Series 1871 or 7671
Pulse Transmitter.

Veeder-Root SERIES 7886 Specifications

General

Brand	Veeder-Root
Model	SERIES 7886
Category	Measuring Instruments
Language	English