DataLoop™ LI23 Loop-Powered Process Meter
Instruction Manual
6
MN302100 Rev 3
Specifications
Except where noted all specifications apply to operation at +25°C.
Input
Input
4-20 mA
Accuracy
±0.02% of span ±1 count, Square root and
programmable exponent: 10-100% FS
Voltage Drop
Without Backlight
: 1.5 V maximum,
With backlight
: 4.5 V maximum
Equivalent
Resistance
With backlight off
: 75 Ω @ 20 mA
With backlight on
: 225 Ω @ 20 mA
Input Overload
Over current protection to 1 A maximum
Over voltage protection to 30 VDC max
(between mA+ and mA-/BL-)
Temperature Drift
25 PPM/°C from -40 to 75°C ambient
Function
PV1: Linear, square root, or programmable
exponent
PV2: Linear or Round Horizontal Tank
Low-Flow Cutoff
0.0 to 999,999.9
HART
Transparency
Analog input will not interfere with existing
HART communications on the wired 4-20 mA
signal
Display
Display
Dual-line LCD with backlight. Both lines 14-
segment alphanumeric. Top: 0.7" (17.8 mm),
Bottom: 0.4" (10.2 mm). Display may be pro-
grammed to turn red and flash a user-defined
message on alarm condition.
Backlight
Powered by 4-20 mA loop. Intensity varies with
signal level
Top Line
5 digits (-9999 to 99999) or 5 characters (all
capital & most lower-case letters)
Bottom Line
8 digits (-9,999,999 to 99,999,999; separated
by commas) or 8 characters (all capital & most
lower-case letters)
Bargraph
20 segments, numeric percent indication at top
Decimal Point
Up to four decimal places on top line and
up to seven decimal places on bottom line
Commas
Commas to indicate 1000s (e.g. 88,987,628)
on bottom line
Dual-Scale
Feature
The input can be displayed in different scales
on the top and bottom lines. For instance, the
top line could display the input in height and
the bottom line could display that same input in
volume.
Alarm Indication
Red backlight, flashing display, bargraph seg-
ment flashes on alarm.
Alarm Message
On or Off; user programmable, 8 characters
maximum. Displayed every 10 seconds for 1
second on bottom line.
Display Update
Rate
Ambient > -10°C: 1 Update/Second
Ambient = -20°C: 1 Update/2 Seconds
From -20°C to -40°C the update rate slows
down 1 second for every -2°C (e.g. at -24°C, 1
update/4 seconds).
Overrange
Top: 99999; Bottom: 99,999,999 (flashing)
Underrange
Top: -9999; Bottom: -9,999,999 (flashing)
General
Environmental
Operating temperature range:
-40 to 75°C for safe area products
Storage temperature range:
-40 to 85°C
Relative humidity:
0 to 90% non-condensing;
Printed circuit boards are conformally coated.
Programming
Method
Front panel
Enclosure &
Materials
Enclosure: 1/8 DIN, IP65, NEMA 4X front pan-
el, high impact plastic, NORYL®
polyphenylene ether & polystyrene blend (PPE
PS) resin, UL 94V-0, Color: gray
Gasket: Silicone Rubber
Faceplate: LEXAN® polycarbonate (PC) Film
Buttons: Silicone rubber
Noise Filter
Averages the input signal over a period of time
between 1 and 16 seconds to dampen the
effects of a noisy signal that causes a jumpy
display.
Filter Bypass
0.0 to 99.9% of full scale. Input signal changes
greater than bypass value are displayed im-
mediately.
Max/Min
Display
Max/min readings reached by the process are
stored until reset by the user or until power to
the meter is turned off.
Tare
Zeros out display
Password
Programmable password restricts modification
of programmed settings.
Non-Volatile
Memory
All programmed settings are stored in non-
volatile memory for a minimum of ten years if
power is lost.
Normal Mode
Rejection
64 dB at 50/60 Hz
Connections
Removable screw terminals accept 12 to 22
AWG wire
DI Digital Input
Contacts
2.1 VDC on contact. Connect normally open
contacts across DI+ to DI-
DI Digital Input
Logic Levels
Logic High: 2.4 to 30 VDC (max)
Logic Low: 0 to 0.9 VDC
Tightening Torque
Screw terminal connectors:
4.5 lb-in (0.5 Nm)
Mounting screws:
8.0 lb-in max. (0.9 Nm)
Overall
Dimensions
4.68" x 2.45" x 3.79"
(119 mm x 62 mm x 96 mm) (W x H x D)
Weight
8.7 oz (247g) with option board
Warranty
3 years parts and labor
