18
Issue/Rev. 0.6 (2/06)
Grounded Switch Closure or Reed
Powered Switch Closure or Reed Switch
Output Wiring Options
Scaled Pulse Connection
Installation
Wall Mounting
A wall mounting bracket is supplied with each instrument.
The instrument is then attached to the bracket at
the bottom with knobs.
Removing the Front Panel:
The front panel of the instrument is removed as follows:
1. Loosen knobs and tilt unit down.
2. Undo the eight screws retaining the front panel.
3. Pull the front panel free from the housing.
Unit can then be tilted up to access internal components.
Terminal Designations
Input - (+TFM)
Input - (-TFM)
The Circuit Board
Warnings
3.6V DC
3.6V DC
Input Signal Wiring Options
Two-wire coil pickup
3.6V DC
The 4200s are affected by EMF (Electric Magnetic
Fields); due to this the unit needs to be located in an
area with little affects from externally omitting EMF
devices. The turbine and pickup uses EMF in pulses
to calculate rate. Interference in this field by other
devices will cause inaccuracies with the meter. Elec-
tric motors, spark driven engines, transformers, and
other high current or high voltage devices create EMF
and should be kept as far away as feasible to lessen
their chances of effecting the meter.
Vibration can cause false readings or counted rate
when not in use. Portable units should be reset after
transport to re-zero the meter. Place meter in a loca-
tion where it is well grounded, free of vibration and
stable when metering.
To Next Page
Loading...
