Adtech LLM 64 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 AD TECH LLM 64 is a Non-Isolated Lead-Lag Module that
accepts a process input signal of 1-5 vdc or 4-20 ma de and
produces a phase lead or phase lag with precise digital
techniques between the input signal and the output signal.
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
10-50 ma de or alternatively, a voltage signal of 5 vdc full
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.
Electrical 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.
housing ground terminal marked G is also provided.
A
Controls
Multiturn ZERO, SPAN and TIME CONSTANT controls are
provided to calibrate the instrument. The multiturn controls
are accessible through the instrument front panel and are
clearly marked for ease of use.
LLM 64
Non-Isolated Lead-Lag Module
Instruction Manual
4.0
These instruments are electronic and require no maintenance
except periodic cleaning and calibration verification. Hthe 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. H the problem appears to be with the
instrument, proceed to sections 6.0 and 7.0.
5.0
Standard connections are shown below and on the instrument
face plate, Data Bulletin oron attached supplementary sheets.
o
ma, 1-5 ma and
-1-
MAINTENANCE
CONNECTIONS
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(
-
INPUT (D
®
( + )
)
OUTPUT - @
(
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(+ )
®
'"FOR DC ) @
fc
L ( + FOR DC ) @
rFP
24VDC TWO-WIRE POWER
OPTION "O 15"
-
I 4 20 MA
LOOP
N"""
0
24 voe ( + )
@)
0
( +)
AUXILIARY TWO-WIRE
TRANSMITTER
INPUT RI
(·)
hN'
24 VDC AT 20 MA
CURRENT
SUPPLYTO 2-WIRE
FIELD TRANSMITTER
- LIMITED
-
190-A-000021-A