red lion LD Series Operating Manual

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MODEL LD - LARGE STRAIN GAGE DISPLAY

GENERAL DESCRIPTION

The Large Display is a versatile display available as a strain gage 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 Type 4X/
IP65 enclosure in light weight aluminum.
All models also come with dual Form C relay outputs and RS232 / RS485
serial communications.
The Crimson software is a Windows based program that allows configuration
of the LD meter from a PC. Crimson offers standard drop-down menu
commands, that make it easy to program the meter. The meter's program can
then be saved in a PC file for future use. Crimson software can be downloaded
at www.redlion.net.
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
DESCRIPTION
NO.
LD 2 Preset Strain Gage Input; 2.25" High 5 Digit Red LED
LD 2 Preset Strain Gage Input; 4" High 5 Digit Red LED
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)
DSP
PAR
F1
F1
RST
AIR PRESSURE STABILIZATION VENT
CAUTION: CAUTION:
Hot Surface Risk of electric shock.
PART NUMBER
LD2SG5P0
LD4SG5P0
LDPLUG00
X
Z
MIN
MAX
1
2
TOT
 2.25" & 4" HIGH RED LED DIGITS
 PROGRAMMABLE SCALING AND DECIMAL POINTS
 PROGRAMMABLE USER INPUT
 DUAL 5 AMP FORM C RELAY
 ALUMINUM TYPE 4X/IP65 CASE CONSTRUCTION
 RS232/RS485 SERIAL COMMUNICATIONS
®
 CRIMSON PROGRAMMING SOFTWARE
 UNIVERSALLY POWERED

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.

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: 40 to 250 VAC 50/60 Hz, 27 VA
DC POWER: 21.6 to 250 VDC, 12 W
Isolation: 3000 Vrms for 1 min.; Power IN to all inputs and outputs
3. INPUT RANGES:
INPUT ACCURACY*
RANGE (18 to 28 °C)
0.02% of
±24 mVDC
reading +3 µV reading +4 µV
0.02% of
±240 mVDC
reading +30 µV reading +40 µV
* After 20 minute warm-up. Accuracy is specified in two ways: Accuracy over
an 18 to 28 °C and 10 to 75% RH environment; and accuracy over a 0 to 65
°C and 0 to 85% RH (non-condensing environment). Accuracy over the 0 to
65 °C range includes the temperature coefficient effect of the meter.
4. CONNECTION TYPE: 4-wire bridge (differential)
2-wire (single-ended)
5. COMMON MODE RANGE (w.r.t. input common): 0 to +5 VDC
Rejection: 80 dB (DC to 120 Hz)
6. BRIDGE EXCITATION :
Jumper Selectable: 5 VDC @ 65 mA max., ±2%
10 VDC @ 125 mA max., ±2%
Temperature coefficient (ratio metric): 20 ppm/°C max.
7. A/D CONVERTER: 16 bit resolution
8. UPDATE RATES:
A/D conversion rate: 20 readings/sec.
Step response: 200 msec. max. to within 99% of final readout value
(digital filter and internal zero correction disabled)
700 msec. max. (digital filter disabled, internal zero correction enabled)
Display update rate: 1 to 20 updates/sec.
Setpoint output on/off delay time: 0 to 3275 sec.
Y
2.25
(57.15)
1
Bulletin No. LDSG-B
Drawing No. LP0914
Effective 06/16
MAX
ACCURACY*
IMPEDANCE CONTINUOUS
(0 to 65 °C)
OVERLOAD
0.07% of
100 Mohm 30 V
0.07% of
100 Mohm 30 V
PART
X (Length) Y (Height)
NUMBER
LD2 16 (406.4) 4 (101.6)
LD4 26 (660.4) 7.875 (200)
RESOLUTION
1 µV
10 µV
Z (Center)
12 (304.3)
22 (558.8)