DCA
Page 5
Equipment
Specifications
Voltage
or
Current Source
Calibrated, adjustable unit, capable of output at discrete levels in the
appropriate range, with the rated impedance for the unit being calibrated.
EDC Models MV105, MV155, or equivalent.
Power Source
AC or dc power input appropriate for the type of DCA being calibrated.
Refer to table 2, earlier in this manual.
Ohmmeter
Accuracy of ±1%, minimum.
Screwdriver
Slotted-tip with head width no greater than 2.54 mm (0.01 in).
Wire Jumpers
(required for
AR-equipped
DCA’s ONLY)
Temporary jumper wiring suitable for shorting AR Option diodes so that the
alarm delay may be defeated while adjusting the unit’s trip point settings.
Extender Card
(optional for use
with PC-style
DCA’s ONLY)
Moore Industries’ part number 350-513-00.
Unit Type
Input
Relay Configuration
Power
Options(s)
Housing
DCA / 4-20MA / DH1L1 / 117AC / -AD [STD]
EXAMPLE
Basic Calibration Setup
The equipment listed in table 3 is needed for calibrat-
ing the DCA. These items are not supplied with the
unit, but should be available in most testing labs.
Be sure to use calibrated test equipment when
performing the bench check and calibration of the
DCA. The use of inaccurate test equipment may
result in unreliable settings for the unit’s trip point(s),
etc.
Table 3.
DCA Calibration Equipment
Voltage or
Current Source
