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Temperature classification, Electrical requirements, Fluid temperature °c ambien t t emper at ur e °c – Max Machinery 290 Series Analog (295, 296 and G Series Transmitters) User Manual

Page 11: T6 t5 t4

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33A

Healdsburg Avenue

Healdsburg,

CA 95448

T

+ 1 707.433.2662

F

+ 1 707.433.1818

Max Machinery, Inc.
maxmachinery.com

11

-25

0

20-

20

40-

40

60-

60

80-

80

100-

100

120

130

Fluid Temperature °C

Ambien

t T

emper

at

ur

e °C

100

90

90 -

75

75-

T6

T5

T4

75

90

130

Temperature Classification

Temperature class is a function of fluid temperature used in the meter and ambient temperature.
For hot fluids, meter must be insulated and transmitter must be left exposed. All transmitters are
rated to operate within the BLUE region, but only the remote sender unit variants (295-x5x-xxx) can
operate up to the maximum temperatures shown in the chart. Consult factory for installation details
when operating near temperature limits.

Temperature class chart for all explosion proof variants:

Note: Consult factory to determine the functional temperature limit of your transmitter variant. Temperature class
ratings do not correspond with the continuous duty area for the electronics within the transmitter. A complete
description of your transmitter may be found on the Max Machinery web site (www.maxmachinery.com). Individual
specification sheets and product family manuals are also available for viewing or downloading.

Electrical Requirements

The device must be powered with a Class 2 power supply. Electrical loads are specific to model number’s:

Part #’s

Transmitter Type

Electrical Input

Requirements

Output Electrical Requirements

29x-0xx-0xx

Pulse Output Transmitter

5-28Vdc 40mA

Single Line 0-5V 10mA (500 ohm pulldown or greater)

29x-1xx-0xx

Quadrature Output
Transmitter

5-28Vdc 50mA

2 Lines 0-5V 10mA each (500 ohm pulldown or greater)

29x-2xx-0xx

mA Output Transmitter
(24Vdc)

24-28Vdc 50mA

Isolated current loop, max 500 ohms in line, 12Vdc max

29x-2xx-1xx

mA Output Transmitter
(12Vdc)

12-15Vdc 100mA

Isolated current loop, max 500 ohms in line, 12Vdc max

29x-3xx-0xx

V Output Transmitter
(24Vdc)

24-28Vdc 50mA

Isolated voltage loop, max 500 ohms in line, 12Vdc max

29x-3xx-1xx

V Output Transmitter
(12Vdc)

12-15Vdc 100mA

Isolated voltage loop, max 500 ohms in line, 12Vdc max

29x-6xx-0xx

Level Shifter Pulse Output
Transmitter

5-28Vdc 30mA

Single line, current sinking, max 28Vdc, max 25mA