Redlion LD2A Manual

MODEL LD - Large DC Volt/Current/Process Display
U L
C C US LISTED US LISTED
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IND. CONT. EQ.
E137808
GENERAL DESCRIPTION
The Large Display is a versatile display available as a DC volt, current,
or process meter with scaling, serial communications and dual relay
outputs. The 5 digit displays are available in either 2.25" or 4" high red
LED digits with adjustable display intensities. The 2.25" high models are
readable up to 130 feet. The 4" high models are readable up to 180 feet.
Both versions are constructed of a NEMA 4X/IP65 enclosure in light
weight aluminum.
All models also come with dual Form C relay outputs and RS232 /
RS485 serial communications.
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear
in this document or on equipment must be observed to ensure personal
safety and to prevent damage to either the device or equipment
connected to it.
Do not use these products to replace proper safety interlocking. No
software-based device (or any other solid-state device) should ever be
designed to be responsible for the maintenance of personnel safety or
consequential equipment not equipped with safeguards. Red Lion
disclaims any responsibility for damages, either direct or consequential,
that result from the use of this equipment in a manner not specified.
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
The protective conductor terminal is bonded to conductive
parts of the equipment for safety purposes and must be
connected to an external protective earthing system.
ORDERING INFORMATION
MODEL NO. DESCRIPTION
2.25" High 5 Digit Red LED Volt/Current Meter w/
LD2A
Relay Output and RS232/RS485 Serial Comms
4" High 5 Digit Red LED Volt/Current Meter w/
LD4A
Relay Output and RS232/RS485 Serial Comms
LD Plug Cord Grip Plug for LD models *
* Required to maintain Type 4X/IP65 specification, if end plate cord grip does not
have cable installed.
DIMENSIONS In inches (mm)
PART
X (Length) Y (Height)
NUMBER
LD2A05P0 16 (406.4) 4 (101.6)
LD4A05P0 26 (660.4) 7.875 (200)
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C C US LISTED US LISTED
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E179259
PROCESS CONTROL EQUIPMENT
CAUTION: Risk of electric shock.
PART NUMBER
LD2A05P0
LD4A05P0
LDPLUG00
Z (Center)
12 (304.3)
22 (558.8)
 2.25" & 4" HIGH RED LED DIGITS
 PROGRAMMABLE SCALING AND DECIMAL POINTS
 PROGRAMMABLE USER INPUT
 DUAL 5 AMP FORM C RELAY
 ALUMINUM NEMA 4X/IP65 CASE CONSTRUCTION
 RS232/RS485 SERIAL COMMUNICATIONS
 UNIVERSALLY POWERED
SPECIFICATIONS
1. DISPLAY: 5 digit, 2.25" (57 mm) or 4" (101 mm) intensity adjustable
Red LED (-99999 to 99999)
2. POWER REQUIREMENTS:
AC POWER: 50 to 250 VAC 50/60 Hz, 26 VA
DC POWER: 21.6 to 250 VDC, 11 W
DC Out: +24 VDC @ 100 mA if input voltage is greater than 50 VAC/
VDC +24 VDC @ 50 mA if input voltage is less than 50 VDC
Isolation: 3000 Vrms for 1 min. to all inputs and outputs
3. INPUT RANGES: Jumper Selectable
D.C. Voltages: 200 mV, 2 V, 20 V, 200 V, 10 V
ACCURACY @
INPUT
°
23 C LESS
RANGE
THAN 85% RH
200 mV 0.1% of span
2 V 0.1% of span
10 V 0.1% of span
20 V 0.1% of span
200 V 0.1% of span
D.C. Currents: 200 µA, 2 mA, 20 mA, 200 mA
ACCURACY @
INPUT
°
23 C LESS
RANGE
THAN 85% RH
200 µΑ 0.1% of span
2 mA 0.1% of span
20 mA 0.1% of span
200 mA 0.1% of span
D.C. Process: 4 to 20 mA, 1 to 5 VDC, 0/1 to 10 VDC
INPUT RANGE
4 - 20 mA Use the 20 mA range
1 - 5 VDC Use the 10V range
1 - 10 VDC Use the 10V range
4. OVERRANGE/UNDERRANGE INDICATION:
Input Overrange Indication: "
Input Underrange Indication: "
Display Overrange/Underrange Indication: "
AIR PRESSURE STABILIZATION VENT
1
Drawing No. LP0673
MAX
INPUT
INPUT RESOLUTION
IMPEDANCE
SIGNAL
Ω
1.033 M 75 VDC 10 µV
Ω
1.033 M 75 VDC 0.1 mV
Ω 250 VDC 1 mV
1.033 M
Ω
1.033 M 250 VDC 1 mV
Ω
1.033 M 250 VDC 10 mV
MAX
INPUT
INPUT RESOLUTION
IMPEDANCE
SIGNAL
Ω
1.111 K 15 mA 10 nA
Ω
50 mA 0.1 µA
111
Ω
11 150 mA 1 µA
Ω
1 500 mA 10 µA
SELECT RANGE
".
OLOL
".
ULUL
.....
"/"-
X
Z
Install LDA- H
Revised 08 2021
TEMP.
COEFFICIENT
70 ppm /°C
70 ppm /°C
70 ppm /°C
70 ppm /°C
70 ppm /°C
TEMP.
COEFFICIENT
70 ppm /°C
70 ppm /°C
70 ppm /°C
70 ppm /°C
.....
"
Y
2.25
(57.15)