Americas

sales@redlion.net

Asia-Pacific

asia@redlion.net

Europe

Middle East

Africa

europe@redlion.net

+1 (717) 767-6511

As the global experts in communication, monitoring and control

for industrial automation and networking, Red Lion has been

delivering innovative solutions for over forty years. Our award-

winning technology enables companies worldwide to gain real-time

data visibility that drives productivity. Product brands include Red

Lion, N-Tron and Sixnet. With headquarters in York, Pennsylvania,

the company has offices across the Americas, Asia-Pacific and

Lion is a Spectris company.

w w w .r edlion.net

Connect. Monitor. Control.

ADLD0378 111813 © 2013 Red Lion Controls

Large Display Strain Gage Specifications

1

AIR PRESSURE STABILIZATION VENT

(57.15)

2.25

X

Z

Y

DSP

PAR

F1

F1

RST

MIN

MAX

TOT

1

2

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.

ORDERING INFORMATION

MODEL

NO.

DESCRIPTION

PART NUMBER

LD

2 Preset Strain Gage Input; 2.25" High 5 Digit Red LED LD2SG5P0

LD

2 Preset Strain Gage Input; 4" High 5 Digit Red LED

LD4SG5P0

LD Plug Panel Meter Plug for LD models

LDPLUG00

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: 2300 Vrms for 1 min.; Power IN to all inputs and outputs

3. INPUT RANGES:

INPUT

RANGE

ACCURACY*

(18 to 28 °C)

ACCURACY*

(0 to 65 °C)

IMPEDANCE

MAX

CONTINUOUS

OVERLOAD

RESOLUTION

±

24 mVDC

0.02% of

reading +3 µV

0.07% of

reading +4 µV 100 Mohm

30 V

1 µV

±

240 mVDC

0.02% of

reading +30 µV

0.07% of

reading +40 µV 100 Mohm

30 V

10 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.

MODEL LD - LARGE STRAIN GAGE DISPLAY

DIMENSIONS In inches (mm)

Bulletin No. LDSG-A

Drawing No. LP0914

Effective 08/13

Tel +1 (717) 767-6511

Fax +1 (717) 764-0839

www.redlion.net

22 (558.8)

12 (304.3)

Z (Center)

7.875 (200)

26 (660.4)

LD4

4 (101.6)

16 (406.4)

LD2

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.

CAUTION: Risk of Danger.

Read complete instructions

prior to installation and

operation of the unit.

CAUTION:

Hot Surface

CAUTION:

Risk of electric shock.



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





UNIVERSALLY POWERED

DISPLAY PROPERTIES

5 digit, 2.25” (57 mm) or 4” (101 mm) intensity adjustable

Red LED (-99999 to 99999)

POWER CONNECTION

AC Power: 40 to 250 VAC 50/60 Hz, 27 VA

DC Power: 21.6 to 250 VDC, 12 W

Isolation: 2300 Vrms for 1 min.; Power IN to all inputs and outputs

INPUT RANGES

±24 mVDC

±240 mVDC

CONNECTION TYPE

4-wire bridge (differential)

2-wire (single-ended)

BRIDGE EXCITATION

Jumper Selectable: 5 VDC @ 65 mA max., ±2%

10 VDC @ 125 mA max., ±2%

COMMUNICATIONS

Type: RS485 or RS232

Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Data: 7/8 bits

Parity: no, odd or even

Baud Rate: 300 to 38.4 K

Bus Address: Selectable 0 to 99, Max. 32 meters per line (RS485)

OUTPUT

Type: Dual FORM-C relay

Isolation To Sensor & User Input Commons: 1400 Vrms for 1 min.

Working Voltage: 150 Vrms

Contact Rating: 5 amps @ 120/240 VAC or 28 VDC (resistive load),

1/8 H.P. @ 120 VAC (inductive load)

Life Expectancy: 100,000 minimum operations

Response Time:

Turn On Time: 4 msec maximum

Turn Off Time: 4 msec maximum

CERTIFICATIONS & COMPLIANCES

CE Approved:

EN 61326-1 Immunity to Industrial Locations

Emission CISPR 11 Class A

Safety requirements for electrical equipment for measurement control,

and laboratory use:

EN 61010-1: General Requirements

EN 61010-2-030: Particular Requirements for Testing and

Measuring Circuits

Type 4X Enclosure rating (Face only)

IP65 Enclosure rating (Face only)

Refer to EMC Installation Guidelines section of the bulletin for

additional information.

ENVIRONMENTAL

Operating temperature: 0 to 65° C

Storage temperature: -40 to 70° C

Operating and storage humidity: 0 to 85% max. RH (non-condensing)

Vibration to IEC 68-2-6: Operational 5-150 Hz, 2 g (1g relay)

Shock to IEC 68-2-27: Operational 30 g (10 g relay)

Altitude: Up to 2,000 meters

MECHANICAL

Construction: Aluminum enclosure, and steel side panels with textured

black polyurethane paint for scratch and corrosion resistance

protection. Meets Type 4X/IP65 specifications. Installation Category II,

Pollution Degree 2.

Weight: LD2 - 4.5 lbs (2.04 kg)

LD4 - 10.5 lbs (4.76 kg)

ORDERING INFORMATION

PART NUMBER

MODEL

DESCRIPTION

LD2SG5P0

LD

2 Preset Strain Gage Input; 2.25” High 5 Digit Red LED

LD4SG5P0

LD

2 Preset Strain Gage Input; 4” High 5 Digit Red LED

LDPLUG00

LD Plug

Panel Plug for LD models

DIMENSIONS In inches (mm)