Manning YB8, Operating And Instruction Manual

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not polarity sensitive. If your device is, connect the positive side up to CONTACT IN (red wire on
cable). In order to insure proper operation of the sampler, it must be the only device connected to the
contact closure output. See Figure 2.
The sampler places a 250-Ohm load on the 4-20mA circuit. In areas where electrical storm
activity is possible, Manning recommends connecting surge suppressors by the transmitting device and
by the sampler to help prevent damage to the equipment.
For a pulse input, connect your device to the red (positive) and black (negative) wires on the
cable. The pulse must have a minimum duration of 1 millisecond. The pulse circuit will work with
pulses in the +5 to +15 VDC range, with +12 VDC being the preferred voltage.
Note: The sampler comes configured from the factory for either the contact input or the
pulse input. To re-configure the sampler, please contact Manning Technical Support for
assistance.
Serial Out Option.
The serial out option proves a way to download the sampler’s data log to an RS-232 compatible
device such as a computer. A 2-pin female connector on the sampler chassis is provided, along with a
serial patch cable, to connect the sampler to the external device. See Figure 3.
PANEL MOUNT CONNECTOR
FRONT VIEW
SAMPLER
PIN A SERIAL OUT
PIN B GROUND
2-PIN FEMALE
PANEL CONNECTOR
SERIAL PATCH CABLE
MS810059
DB9 MALE CONNECTOR
TO RS-232 DEVICE
Figure 3.
The user-supplied serial cable that connects the computer or other external device must have a
female DB9 connector on the end that will connect to the sampler’s patch cable. This cable should be a
standard cable, and not a null-modem type.