The OMEGA RD-87 Series strip
chart recorders are offered in
different models to record either
a J Thermocouple, Temperature,
Temperature/Humidity or a 4 to 20 mA input
signal on a 100 mm wide
strip chart, with a single pen.
The temperature/humidity model
uses two pens. Pens are colored
to maximize chart readability. All
RD-87 models offer a LCD display
and user friendly controls. A full
function alarm feature is provided
on the RD-87 Series. The alarm can
be set to sound an audible signal
when the measured value(s) has
exceeded an upper or lower limit.
Each limit is individually set from the
front panel. A delay time before the
alarm is activated may be set by the
user to prevent nuisance alarms
caused by short-term variations.
Low power normally open relay
contacts are provided to allow
activation of a remote alarm,
phone dialer or annunciation.
Power is supplied through a
plug-in mains power adapter.
External power may be supplied
from any 12 Vdc source such as
automotive, marine, or other battery.
Battery backup for up to 48 hours is
featured to provide operation during
temporary power loss.
Note: Comes complete with one pen per channel, one roll metric paper, one roll standard paper, 120 V ac power adapter, and complete operator’s manual. RD-87-J includes a six foot beaded thermocouple wire. RD-87-TEMP includes 4 inch probe with 15 feet cable. RD-87-TRH includes a temperature/humidity probe with coiled cable. RD-87-VAC includes two sensor wires with banana plug and alligator clip. RD-87-CAC includes a clamp on current probe. To order unit for 220 Vac, add suffix “-220V” to model number. No additional charge.