Model LI1X Universal Process Meter
Instruction Manual
RESET
User Select:
1. Automatically when input passes reset point.
2. Automat Manually (via user supplied
switch or front panel ACK button). Manual
reset resets all manually resetable relays.
DEADBAND
0-100% of full scale, user selectable.
HIGH OR LOW
User may program any alarm for a high or low
ALARM
trip point.
FAIL-SAFE
Relay coils are energized in non-alarm
OPERATION
condition. In case of power failure, relays will
go to alarm state. Fail-safe operation may be
disabled, by removing jumper J2 located on the
Options PCB.
AUTO
When power is applied to the meter, relays will
INITIALIZATION
always reflect the state of the input to the meter.
Isolated 4-20 mA Transmitter Output
CALIBRATION
The transmitter output can be calibrated so that
RANGE
a 4 mA output is produced for any number
displayed by the meter. The 20 mA output may
correspond to any number that is at least 501
counts greater or smaller than the number
corresponding to 4 mA. (Ex. 4 mA = 0, 20 mA =
501) If the span between 4 and 20 mA is less
than 501 counts, an error message will appear.
EQUIPMENT
The 4-20 mA output is calibrated without
NEEDED
the use of a calibrator. No equipment needed.
OUTPUT
(AC Meters only), Isolated 24 VDC ± 5% @ 20
LOOP-POWER
mA regulated. Maximum loop resistance is
1200 ohms. Available for either signal input or
4-20 mA output, but not both.
ACCURACY
± 0.1% F.S., ± 0.004 mA.
ISOLATION
500 VDC or peak AC, input-to-output or
input/output-to-power line.
EXTERNAL LOOP-
35 VDC max.
POWER SUPPLY
OUTPUT LOOP
Power supply
Min. loop
Max loop
RESISTANCE
resistance
resistance
24 VDC
10 ohms
600 ohms
35 VDC (external) 600 ohms
1000 ohms
8
Model LI1X Universal Process Meter
Instruction Manual
9
Display Messages and Functions
The following table describes the various messages displayed by the
meter during programming and operation:
Display
Parameter
Description/Comments
E-
C
AL
Select External
Set meter for calibration using
Calibration
an external calibration source.
I-
C
AL
Select Internal
Set meter for calibration (scaling)
Calibration
using Internal calibration source.
C
ALIb
Perform External
Calibrate meter using an external
Calibration
calibration source.
S
C
ALE
Perform Internal
Calibrate meter (scale) using
Calibration
internal calibration source.
(scaling)
(Signal source not required).
InPt 1
Input 1
Set Input 1 calibration value.
Dspy 1
Display 1
Set Display 1 calibration value.
Inpt 2
Input 2
Set Input 2 calibration value.
Dspy 2
Display 2
Set Display 2 calibration value.
DE
C
Pt
Decimal Point
Set decimal point or light up
extra "0".
No. PtS
Number of Points
Set meter for 2 to 11
calibration points.
L or S
Linear or Square
Set meter for Linear or Square Root
calibration/scaling.
C
vtoFF
Low-flow Cutoff
Set meter to display zero below
programmed cutoff point.
Alars
Alarms
Program alarm/relay set and
reset points.
OvtPvt
Output
Set 4-20 mA output values.
19999
Overrange
Indicates input signal exceeds
full-scale range of meter.
-19999
Underrange
Indicates input signal is below the
negative range of meter.
Error
Error
Indicates calibration was not
successful.
Spec Tech Industrial Electric
www.spectechind.com
888-773-2832
Spec Tech Industrial Electric
www.spectechind.com
888-773-2832
