User manual

1
AIR PRESSURE STABILIZATION VENT
(57.15)
2.25
X
Z
Y
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 regulations, local codes and instructions that appear in this and
corresponding literature, or on equipment, must be observed to ensure personal
safety and to prevent damage to either the instrument or equipment connected to
it. If equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
ORDERING INFORMATION
MODEL NO. DESCRIPTION PART NUMBER
LD2A
2.25" High 5 Digit Red LED Volt/Current Meter w/
Relay Output and RS232/RS485 Serial Comms
LD2A05P0
LD4A
4" High 5 Digit Red LED Volt/Current Meter w/
Relay Output and RS232/RS485 Serial Comms
LD4A05P0
LD Plug
Panel Meter Plug for LD models
(NOT included in LD Product UL File)
LDPLUG00
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: 2300 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
D.C. Currents: 200 A, 2 mA, 20 mA, 200 mA
D.C. Process: 4 to 20 mA, 1 to 5 VDC, 0/1 to 10 VDC
4. OVERRANGE/UNDERRANGE INDICATION:
Input Overrange Indication: “
OLOL”.
Input Underrange Indication: “ULUL”.
Display Overrange/Underrange Indication: “.....”/“-.....”
 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
MODEL LD - LARGE DC VOLT/CURRENT/PROCESS DISPLAY
DIMENSIONS In inches (mm)
Bulletin No. LDA-C
Drawing No. LP0673
Released 09/09
Tel [phone]
Fax [phone]
www.redlion.net
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
CAUTION: Risk of electric shock.
INPUT
RANGE
INPUT
IMPEDANCE
MAX
INPUT
SIGNAL
RESOLUTION
TEMP.
COEFFICIENT
200 mV 0.1% of span
1.027 M
75 VDC 10 μV 70 ppm /°C
2 V 0.1% of span
1.027 M
75 VDC 0.1 mV 70 ppm /°C
20 V 0.1% of span
1.027 M
250 VDC 1 mV 70 ppm /°C
10 V
200 V
0.1% of span
0.1% of span
538 K
1.027 M
30 V
250 VDC
1 mV
10 mV
70 ppm /°C
70 ppm /°C
ACCURACY @
23
C LESS
THAN 85% RH
INPUT
RANGE
INPUT
IMPEDANCE
MAX
INPUT
SIGNAL
RESOLUTION
TEMP.
COEFFICIENT
200 μΑ 0.1% of span
1.111 K
15 mA 10 nA 70 ppm /°C
2 mA 0.1% of span
111 
50 mA 0.1 μA 70 ppm /°C
20 mA 0.1% of span
11 
150 mA 1 μA 70 ppm /°C
200 mA 0.1% of span
1 
500 mA 10 μA 70 ppm /°C
ACCURACY @
23
C LESS
THAN 85% RH
22 (558.8)
12 (304.3)
Z (Center)
7.875 (200)26 (660.4)LD4A05P0
4 (101.6)16 (406.4)LD2A05P0
Y (Height)X (Length)
PART
NUMBER
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.
INPUT RANGE SELECT RANGE
4 - 20 mA Use the 20 mA range
1 - 5 VDC Use the 10V range
1 - 10 VDC Use the 10V range
C
C
US LISTED
US LISTED
U
L
R
51EB
IND. CONT. EQ.
C
C
US LISTED
US LISTED
U
L
R
LABORATORY EQUIPMENT
3RSD