APPENDIX B: SPECIFICATIONS

(OM-550 at 25°C unless otherwise stated)

 

 

VOLTAGE MEASUREMENT INPUTS:

 

 

 

IMPEDANCE:

 

 

10 Meg Ω nominal

 

RANGE:

 

 

 

±2 VDC

 

 

RESOLUTION:

 

 

100 µV

 

 

ACCURACY:

 

 

±500 µV

 

 

CMRR:

 

 

 

>120 db at 50/60 Hz

 

NMRR:

 

 

 

> 45 db at 50/60 Hz

 

ABSOLUTE MAXIMUM OVERVOLTAGE

 

 

 

PROTECTION:

 

 

120 VAC

 

THERMOCOUPLE INPUTS:

 

 

 

 

TYPES:

 

 

 

J, K, T, E

 

 

RESOLUTION:

 

 

0.1°, C or F

 

INPUT IMPEDANCE:

 

100 Meg Ω

 

LEAD RESISTANCE EFFECT:

<20 µV / 800Ω

 

COLD JUNCTION COMPENSATION:

±0.5°C Max, (10°C to 40°C)

 

CMRR at 50/60 Hz:

 

>120 db

 

 

NMRR at 50/60 Hz:

 

> 60 db

 

ACCURACY:

 

 

 

 

 

TYPE

RANGE (°C)

TABLE CONFORMITY

TOTAL ACCURACY

J

-165.

to

+760.

0.08°

 

±0.8°

 

0.

to

+760.

0.08°

 

±0.6°

K

-101.

to +1250.

0.10°

 

±0.8°

 

0.

to +1250.

0.10°

 

±0.6°

T

-105.

to

+400.

0.10°

 

±0.8°

 

0.

to

+400.

0.10°

 

±0.6°

E

-140.

to

+660.

0.09°

 

±0.8°

 

0.

to

+660.

0.09°

 

±0.6°

TYPE

RANGE (°F)

TABLE CONFORMITY

TOTAL ACCURACY

J

-265.

to +1400.

0.14°

 

±1.5°

 

+32.

to +1400.

0.14°

 

±1.0°

K

-150.

to +2282.

0.18°

 

±1.5°

 

+32.

to +2282.

0.18°

 

±1.0°

T

-158.

to

+752.

0.18°

 

±1.5°

 

+32.

to

+752.

0.18°

 

±1.0°

E

-220.

to +1225.

0.16°

 

±1.5°

 

+32.

to +1225.

0.16°

 

±1.0°

OM-550

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Page 54
Image 54
Omega Vehicle Security OM-550 manual Appendix B Specifications, Voltage Measurement Inputs, Accuracy