Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois

60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

73L-IV

73G-IV

OPTICAL

ISOLATION

ISOLATED

DC/DC

CONVERTER

5.23K

10K

CHANNEL A

CHANNEL B

Vs

µP

CH. A

A/D

CH. B

SIGNAL

CONDITIONING

AND

FILTER

SIGNAL

CONDITIONING

AND

FILTER

I/O MODULE

PIN #

TERMINAL

BLOCK #

–

+

–

+

INPUT

DEVICE

INPUT

DEVICE

TWISTED

PAIR

TWISTED

PAIR

1

2

3

4

4

3

2

1

5

6

7

8

9 MODULE ID

RXD

TXD

Vcc

GND

+5V

3

4

5

GROUND

AMP

V/F

DC/DC

CONVERTER

FILTER &

BUFFER

SQUARE-

WAVE

OUTPUT

+

–

1

2

10K

Ω

˜

CURRENT

SOURCE

CIRCUITRY: Voltage Output

Analog Voltage Input Modules

FEATURES

• Wide Variety of Input Ranges

• Standard Package and Pin-out

• Single 5V Power Supply

• 12-Bit Resolution

• Optical Isolation from Input to Output

• Intermix With Digital Modules on the

Same Rack

• Meets the Requirements of IEEE 472

• UL, CSA, CE Certified (OpenLine only)

G5

Type/Function

Grayhill Part Number

73G-IV1

73G-IV5

73G-IV10

73L-IV1

73L-IV5

73L-IV10

Specifications

Units

Number of Inputs

1 Ch., Diff.

1 Ch., Diff.

1 Ch., Diff.

2 Ch., S.E.

2 Ch., S.E.

2 Ch., S.E.

Resolution

bits

12

12

12

12

12

12

µV/count

244.1

1221

2441

244.1

1221

2441

+/- 0.1

+/- 0.1

+/- 0.1

0.075

0.075

0.075

Maximum Offset

PPM/°C

+/- 50

+/- 50

+/- 50

+/- 35

+/- 25

+/- 25

Maximum Gain (0-60°C)

PPM/°C

+/- 55

+/- 55

+/- 55

+/- 75

+/- 75

+/- 75

Serial Data Format

12-bit packet

12-bit packet

12-bit packet

Right Justified,

Right Justified,

Right Justified,

16-bit

16-bit

16-bit

Serial Data Packet

N/A

N/A

N/A

115.2Kb,N,8,2

115.2Kb,N,8,2

115.2Kb,N,8,2

mS

2.5

2.5

2.5

1.5

1.5

1.5

Input Resistance (Rx)

Mohm

1

1

1

2.2

2.2

2.2

Input Voltage Range

Vdc

0-1

0-5

0-10

0-1

0-5

0-10

Maximum Overload

V

—

—

—

+/- 30

+/- 30

+/- 30

Logic Voltage Range

Vdc

4.5-5.5

4.5-5.5

4.5-5.5

4.75-5.25

4.75-5.25

4.75-5.25

Maximum Logic Supply

Current @ 5Vdc

mA/Ch.

150

150

150

38

38

38

Module ID (Pin 9)

K

Ω

N/A

N/A

N/A

5.23

5.23

5.23

Isolation Voltage

Field to Logic

Vrms

2500

2500

2500

2500

2500

2500

Field to Power

Vrms

2500

2500

2500

2500

2500

2500

Module to Module

Vrms

2500

2500

2500

2500

2500

2500

Channel A to Channel B

—

—

—

None

None

None

Environmental Conditions

° C

0 to 60

0 to 60

0 to 60

-40 to 85

-40 to 85

-40 to 85

Storage Temperature

° C

-25 to 85

-25 to 85

-25 to 85

-55 to 100

-55 to 100

-55 to 100

SPECIFICATIONS: By Part Number

I/O

27