Omega HX94 Manual de usuario

HX94

Probe

WARRANTY/DISCLAIMER

OMEGA

ENGINEERING,

INC.

warrants

this

unit

free

defects

materials

and

workmanship

for

period

months

from

date

purchase.

OMEGA

Warranty

adds

additional

one

(1)

month

grace

period

the

normal

one

(1)

year

product

warranty

cover

aandling

and

shipping

time.

This

ensures

that

OMEGA'S

customers

receive

maximum

aoverage

each

product.

the

unit

should

malfunction,

must

returned

the

factory

for

evaluation.

OMEGA'S

Customer

Service

Department

will

issue

Authorized

Return

(AR>

number

immediately

upon

shone

written

request.

Upon

examination

OMEGA,

the

unit

found

defective

will

repaired

replaced

charge.

OMEGA'S

WARRANTY

does

not

apply

defects

resulting

from

any

action

the

purchaser,

including

but

not

limited

mishandling,

improper

interfacing,

operation

outside

design

limits,

improper

repair,

unauthorized

modification.

This

A/ARRANTY

VOID

the

unit

shows

evidence

having

been

tampered

with

shows

evidence

being

damaged

result

excessive

corrosion;

current,

heat,

moisture

vibration;

improper

specification;

misapplication;

misuse

other

operating

conditions

outside

OMEGA's

control.

Components

which

wear

are

not

warranted,

including

but

not

limited

contact

points,

fuses,

and

triacs.

OMEGA

pleased

offer

suggestions

the

use

its

various

products.

However,

OMEGA

neither

assumes

responsibility

for

any

omissions

errors

nor

assumes

liability

for

any

damages

that

result

from

the

use

its

products

accordance

with

information

provided

OMEGA,

either

verbal

written.

OMEGA

warrants

only

that

the

parts

manufactured

will

specified

and

free

defects.

OMEGA

MAKES

OTHER

WARRANTIES

REPRESENTATIONS

ANY

KIND

WHATSOEVER,

EXPRESSED

IMPLIED,

EXCEPT

THAT

TITLE,

AND

ALL

IMPLIED

WARRANTIES

INCLUDING

ANY

WARRANTY

MERCHANT

ABILITY

AND

FITNESS

FOR

PARTICULAR

PURPOSE

ARE

HEREBY

DISCLAIMED.

LIMITATION

LIABILITY:

Tha

remedies

purchaser

set

forth

herein

are

exclusive

and

the

total

liability

OMEGA

with

respect

this

order,

whether

based

contract,

warranty,

negligence,

indemnification,

strict

liability

otherwise,

shall

not

exceed

the

purchase

price

the

component

upon

which

liability

based.

event

shall

OMEGA

liable

for

consequential,

incidental

special

damages.

CONDITIONS:

Equipment

sold

OMEGA

not

intended

used,

nor

shall

used:

(1)

"Basic

Component"

under

CFR

(NRC),

used

with

any

nuclear

installation

activity;

(2)

medical

applications

used

humans.

Should

any

Product(s)

used

with

any

nuclear

installation

activity,

medical

application,

used

humans,

misused

any

way,

OMEGA

assumes

responsibility

set

forth

our

basic

WARRANTY/DISCLAIMER

language,

and

additionally,

purchaser

will

indemnify

OMEGA

and

hold

OMEGA

harmless

from

any

liability

damage

whatsoever

arising

out

the

use

the

Product(s)

such

manner.

mmmmmmmm

RETURN

REQUESTS/INQUIRIES

mmmmammm

Direct

all

warranty

and

repair

requests/inquiries

the

OMEGA

Customer

Service

Department.

BEFORE

RETURNING

ANY

PRODUCT(S)

OMEGA,

PURCHASER

MUST

OBTAIN

AUTHORIZED

RETURN

<AR)

NUMBER

FROM

OMEGA'S

CUSTOMER

SERVICE

DEPARTMENT

(IN

ORDER

AVOID

PROCESSING

DELAYS).

The

assigned

number

should

then

marked

the

outside

the

return

package

and

any

correspondence.

The

purchaser

responsible

for

shipping

charges,

freight,

insurance

and

proper

packaging

prevent

breakage

transit.

FOR

WARRANTY

RETURNS,

please

have

the

following

information

available

BEFORE

contacting

OMEGA:

P.O.

number

under

which

the

product

was

PURCHASED,

Model

and

serial

number

the

product

under

warranty,

and

Repair

instructions

and/or

specific

problems

relative

the

product.

FOR

NPN-WARB

REPAIRS,

consult

OMEGA

for

current

repair

charges.

Have

the

following

information

available

BEFORE

contacting

OMEGA:

P.O.

number

cover

the

COST

the

repair,

Model

and

serial

number

product,

and

Repair

instructions

and/or

specific

problems

relative

the

product.

OMEGA'S

policy

make

running

changes,

not

model

changes,

whenever

improvement

possible.

This

affords

our

customers

the

latest

technology

and

engineering.

OMEGA

registered

trademark

OMEGA

ENGINEERING,

INC.

1996

OMEGA

ENGINEERING,

INC.

All

rights

reserved.

This

document

may

not

copied,

photocopied,

reproduced,

translated,

reduced

any

electronic

medium

machine-readable

form,

whole

part,

without

prior

written

consent

OMEGA

ENGINEERING,

INC.

OMEGA

ENGINEERING,

INC.

j\n

OMEGA

Technologies

Company

HX94

RELATIVE

HUMIOITY/TEMPERATURE

PROBE

transmitter

GENERAL

DESCRIPTION

The

stainless

steel

probe

provides

temperature

compensated

relative

humidity

well

temperature

outputs.

thin

film

polymer

capacitor

senses

relative

humidity,

while

temperature

monitored

100

ohm

platinum

RTD.

The

sensors

are

protected

stainless

steel

filter

cap

that

easily

removable

for

cleaning.

The

sealed

probe

has

end

cap

that

may

removed

for

access

calibration

trimmers

when

neces¬

sary.

Signal

and

power

connections

are

made

via

connector

the

end

12”

cable.

adjustable,

removable

duct

flange,

allows

mounting

any

depth

between

and

inches.

Also

provided

mating

cable

connector

and

clip

for

wall

mounting.

The

current

output

version

the

probe

true

2-wire

transmitter

with

unusually

low

compliance

voltage

volts),

allowing

for

long

wire

runs.

The

voltage

version

has

internal

voltage

regulation

that

any

low

power

source

(3.5ma)

over

wide

voltage

range

volts)

will

operate

the

unit.

Both

current

and

voltage

versions

are

polarity

protected.

UNPACKING

Verify

that

the

following

parts

have

been

received.

Probe

transmitter

2-piece

duct

flange,

with

o-ring,

(3)

flat

head

screws,

and

gasket

4-pin

mating

connector

Wall

mounting

clip

and

screw

Instruction

manual

THEORY

OPERATION

milliamp

loop

series

current

loop

which

transmitter

will

vary

the

current

flow

depending

upon

the

parameter

being

measured

(Relative

Humidity

Temperature).

Advantages

current

output

over

voltage

output

that

less

susceptible

noise

interference

and

allows

the

connection

than

one

meter

recorder

the

loop

long

the

maximum

resistance

not

exceeded.

The

typical

current

loop

will

consist

power

supply,

transmitter,

and

meter

measure

the

current

flow.

The

loop

resistance

the

sum

the

impedance

the

meter(s)

and

the

lead

wire.

The

maximum

allflMbla

IdPp

impedance

the

probe

found

the

Formula:

Rmax

(power

supply

voltage-6

volts)/.02

amps

Example:

when

using

24VDC

power

supply:

Rmax

(24-6)

.02

900

ohms

(for

total

wire

length

and

from

the

transmitter).

The

following

chart

shows

various

resistance

lead

wire:

AWG

WIRE

SIZE

RESISTANCE

PER

1000

FEET

ohms

the

meter

recorder

being

used

accepts

only

voltage,

than

either

the

voltage

version

the

probe

volt)

should

used,

convert

the

current

voltage

installing

250

ohm

resistor

across

the

input

terminals

the

recorder

obtain

volts

input.

TERMINAL

CONNECTIONS

MATING

USER'S

CONNECTOR

PHILLIPS

Remove

small

Phillips

head

screw

from

mating

connector.

Pull

out

section

from

front.

Insert

cable

end

thru

connector

before

soldering

solder-cup

pins.

The

terminals

will

No.

AWG

wires

HX94C

HX94V

PROBE

CABLE

CONNECTOR

CURRENT

VOLTAGE

WIRE

COLOR

NO.

DESIGNATIONS

BLACK

TEMPERATURE

POWER

SUPPLY

WHITE

+VRH

-V

GROUND

RED

-V

TEMPERATURE

TEMP.

OUTPUT

GREEN

-VRH

VRHRH

OUTPUT

WIRING

EXAMPLES

TYPICAL

CURRENT

HOOKUP

Wires

and

can

combined

into

one

single

wire

with

jumper

pins

(1)

and

(2).

This

will

mean

wires

instead

HX94C

(3)

FLAT

HEAD

SCREWS

DUCT

FLANGE

MOUNTING

GASKET

DUCT

MOUNTING

DUCT

WALL-*-

STEPS

Slide

flange

holder

onto

probe

with

countersink

hole

facing

front

probe

shown.

Position

o-ring

probe

desired

position,

(for

depth

into

duct).

Slide

duct

flange

onto

probe

with

countersink

screw

holes

facing

front

probe

shown.

Fasten

with

(3)

6/32

flat

head

screws

and

tighten

evenly

until

secure.

Position

gasket

between

duct

flange

and

duct

wall

and

fasten

assembly

duct

with

(4)

sheet

metal

screws

(not

included).

The

duct

wall

requires

13/16“d.

(.812"

mm)

hole

for

probe,

with

(4)

mounting

holes

(for

sheet

metal

screws)

evenly

spaced

2.0”

(51

mm)

circle.

Use

duct

flange

template.

WALL

MOUNTING

Fasten

plastic

clip

wall

with

included

screw.

Snap

probe

into

clip.

AND

TEMPERATURE

CALCULATIONS

Max

current

loop

impedance

for

Temperature

Rmax

supply-6

volts

)/.02

amps

current

output:

current

output

milliamperes)

%RH

—4)/.16

'RH

(%RH)

(.16)

Temperature

current

output

°C

-4)

(100/16)

(°C)

(16/100)

°F

-4)

(180/16)

'F=

(°F-32)

(16/180)

voltage

output:

voltage

outage

millivolts)

%RH

V/10

Temperature

voltage

output

°C

V/10

°F

(V/10)

(1.8)

(%RH)

(10)

(°C)

(10)

(°F-32)

(10/1.8)

CALIBRATION

Unscrewing

cable

endcap

will

expose

two

trimpots,

(SPAN)

the

left,

and

(ZERO)

the

right.

Place

sensor

end

probe

“low”

environment

(e.g.

Lithium

chloride

solution,

11.3%RH)

Adjust

trimpot

that

output

decreases

minimum

value

and

further

adjustment

produces

change.

Output

will

approximately

4ma

for

current

version

(

volts

for

voltage

version).

Adjust

trimpot

until

output

just

starts

increase

from

4ma

volts)

Place

sensor

end

probe

“high”

environment

(e.g.

Sodium

Chloride

solution,

75.3%RH).

Adjust

trimpot

until

output

reading

equivalent

the

difference

between

the

“low”

and

“high”

environments.

Example:

75.3%

RH-11.3%RH

64%RH,

which

equivalent

14.24

miiliamperes

(640

millivolts

for

voltage

version).

(See

calculation

section

formulas.)

Adjust

trimpot

until

output

reading

equivalent

the

“high”

environment

(e.g.

75.3%RH

16.05

miiliamperes

(753

millivolts)

determined

formulas).

TEMPERATURE

CALIBRATION

Temperature

factory

calibrated

only,

and

does

not

require

any

further

calibrations.

MAINTENANCE

the

probe

operated

dusty

environment,

the

protective

sensor

filter,

clogged,

may

removed

for

cleaning.

Unscrew

filter

and

gently

blow

compressed

air

through

screen.

necessary,

use

soft

brush

remove

lint

from

sensors.

the

sensors

are

subjected

100%

condensation,

they

must

dried

obtain

correct

readings.

There

permanent

calibration

shift,

nor

recalibration

necessary

100%

condensation

occurs.

The

instrument

should

not

exposed

high

concentrations

ammonia

alcohol

vapors.

However,

any

environment

that

breathable

under

normal

HVAC

applications

should

not

affect

the

sensors.

maintain

original

specifications,

generally

recommended

that

the

sensor

recalibrated

annual

basis

depending

upon

operating

conditions.

The

temperature

sensor

does

not

require

recalibration.

SPECIFICATIONS

RELATIVE

HUMIDITY:

Thin

film

polymer

capacitor

INPUT

VOLTAGE

RANGE:

30VDC

(Polarity

protected)

RANGE/ACCURACY/REPEATABILITY:

3%RH

95%RH/

±2%RH/±1%RH

TEMPERATURE

COMPENSATION:

-20°C

85°C

CURRENT

OUTPUT:

20ma

for

100%RH

VOLTAGE

OUTPUT:

1.0

volt

for

100%RH

TIME

CONSTANT:

(for

90%

responses

25°C;

moving

air,

IM/sec)

Less

than

seconds,

10%RH

90%RH

Less

than

seconds,

90%RH

10%RH

TEMPERATURE:

Thin

film

100

ohm

platinum

RTD

(DIN

43760)

INPUT

VOLTAGE

RANGE:

30VDC

(polarity

protected).

RANGE:

0°C

100°C

(32°F

212°F)

ACCURACV/REPEATABILITV:

±fl.6°£

(±1°F)/±o.3°c

(±o.

°f)

CURRENT

OUTPUT:

20ma

for

0°C

100°C

VOLTAGE

OUTPUT:

1.0

volt

for

0°C

100°C

TIME

CONSTANT:

(for

60%

response)

less

than

seconds

moving

air

(IM/sec);

less

than

seconds

still

air.

ECHANICAL

HOUSING:

Stainless

steel

water

tight

enclosure

meets

NEMA

specifications.

DIMENSIONS:

PROBE;

10.00"

(254mm

long),

.75"

(19mm)

diameter,

12"

cable.

DUCT

FLANGE;

variable

“

(25.4

227mm)

depth.

2.75"

(70mm)

diameter,

duct

hole

.812"

(21mm)

diameter,

with

mounting

holes

.156"

(4mm)

diameter

(for

sheet

metal

screws)

2.00"

(51mm)

circle.

CONNECTIONS:

mating

connector

accepts

AWG

wires.

WEIGHT:

ounces

(198

grams)

with

duct

flange.

Approved

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