Adtech ALM 00 Instruction Manual

1.0 INTRODUCTION
These instructions refer to the above model. Supplementary
sheets are attached if the unit has special options or features.
For detailed specifications, see page 4 or refer to the Data
Bulletin. All ADTECH instruments are factory calibrated and
supplied with a label detailing the calibration. Adjustments are
normally not necessary. A simple check should be performed
to verify calibration before installation to ensure that it matches
the field requirement.
2.0 GENERAL DESCRIPTION
The ADTECH ALM 00 is a Non-Isolated Linearizer Module
that accepts a standard process input signal of 1-5 vdc or
4-20 ma dc that is a function of a whole or fractional power and
converts it into a linear output. The value of power is limited
from 0.2 to 5. The standard model handles monotonjc
functions such as root extraction, power functions, or optionally
logarithmic functions on a continuous calculation method
(Option O 43). A breakpoint type non-monotonic function
linearizer is optional (Option O 42).
Power Option P 1 Non-Isolated 24 vdc provides negative
output signal and negative DC power common rail connection.
The output is a true current source and provides process
signals such as 4-20 ma, 0-1 ma, 0-1 0 ma, 1-5 ma and 10-50
ma dcor alternatively, a voltage signal of 5 vdcfull scale. Other
current and voltage Inputs/Outputs (1/0} are available as
specified on the Data Bulletin.
3.0 INSTALLATION
The instrument is supplied in a general purpose enclosure as
standard. NEMA 4, 7 or 12 and plug in chassis enclosures are
optionally available. Installation area/location must agree with
the supplied instruments including operating temperature and
ambient conditions.
Mounting
Refer to the appropriate outline drawing for mounting and
clearance dimensions. The instrument is surface mounted
with two #10-32 screws on 8.00 inch centers.
Electrlcal Connections
The wire used to connect the instrument to the control system
1/0 should be a twisted pair(s) and sized according to normal
practice. Shielded cable is not normally necessary (if used,
the shield must be grounded at the input negative of the
ADTECH instrument and left floating at the sensor).
A 12 position barrier terminal block with #6-32 screws and
3/8" spacing is provided for 1/0 and power connection.
A housing ground terminal marked G is also provided.
Controls
Multiturn INPUT ZERO, INPUT SPAN, OUTPUT ZERO,
OUTPUT SPAN, LOG or EXPONENT and Optional 10
ALMOO
Analog Linearizer Module
Instruction Manual
Segment Internal Controls one per segment are provided to
calibrate the instrument. The multiturn controls are accessible
through the instrument front panel and are clearly marked for
ease of use.
4.0 MAINTENANCE
These instruments are electronic and require no maintenance
except periodic cleaning and calibration verification. If the unit
appears to be mis-operating it should be checked as installed
per section 6.0 or removed for a bench check per sections 6.0-
7.0. MOST problems are traced to field wiring and/or associated
circuits. If the problem appears to be with the instrument,
proceed to sections 6.0 and 7.0.
5.0 CONNECTIONS
Standard connections are shown below and on the instrument
face plate, Data Bulletin or on attached supplementary sheets.
(
INPUT -
(+)
(
OUTPUT
(+)
N ( -FOR DC )
AC
L + FOR DC )
( rFP
24VDC lWO-WIRE POWER
OPTION "O 15"
-
I
4 20 MA
�
LOOP
24 VDC (+) @)
( +)
INPUT RI
w
(-)
- 1 -
CD
)
@
)
- @
©
®
@
@
©
0
AUXILIARY lWO-WIRE
TRANSMITTER
24 VDC AT 20 MA
CURRENT- LIMITED
SUPPLY TO 2-WIRE
FIELD TRANSMITTER
1 90-A-000016-A