Kistler-Morse KM Microcell Bolt-On - Manual (Page 39)

APPENDIX C. ALTERNATE METHOD FOR
CHECKING OUTPUT
If you do not have a Kistler-Morse ® Test Meter, use
a Digital Multimeter (DMM) to monitor the voltage
output of each Microcell™ during installation. Set
up the DMM as described below and then follow
the installation procedure for mounting the
Microcell™.
Note
The junction box must be mounted and wired to
the signal processor and powered up before
proceeding with the following procedure. See
previous sections about Mounting Junction
Box, Wiring Microcells™ to Junction Box, and
Wiring Junction Boxes Together and to Signal
Processor before continuing.
1. See Figure C-1. Connect the red wire from
the Microcell™ cable to the R terminal on
terminal block TB3 in the junction box.
Connect the black wire to the B terminal
on TB3.
2. Connect the signal (+) probe of the DMM to the
white wire from the Microcell™ cable. DO NOT
connect the white wire to the terminal block.
3. Connect the common (-) probe of the DMM
to TP1 on the junction box circuit board. If
a test point is not present, connect the
common probe to the lead of either R1 or R2
nearest the TB2 terminal strip.
4. Set a voltage range on the DMM that will
accommodate a measured range of ±1V.
5. Complete installation of the Microcell™,
using the DMM to monitor the voltage output
as you tighten the screws. See Mounting the
Microcell™ for your installation.
Figure C-1. Using DMM to Monitor Voltage Output.
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