Omega HX94B User guide

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HX94B SERIES

Temperature/Relative Humidity

Transmitter

Page 2

omega.com [email protected]

Omega Engineering, Inc:

800 Connecticut Ave. Suite 5N01, Norwalk, CT 06854, USA Toll-Free: 1-800-826-6342 (USA & Canada only) C ustomer Service: 1-800-622-2378 (USA & Canada only) Engineering Service: 1-800-872-9436 (USA & Canada only)

Tel: (203) 359-1660 e-mail: [email protected]

Omega Engineering,

Limited:

1 Omega Drive, Northbank, Irlam Manchester M44 5BD

United Kingdom

Omega Engineering,

Daimlerstrasse 26 75392

Deckenpfronn Germany

Fax: (203) 359-7700

GmbH:

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.

Page 3

Table of Contents

Section Page

Section 1 - Introduction ........................................................................................ 1-1

Section 2 - Unpacking ........................................................................................... 2-1

Section 3 - Operation ............................................................................................ 3-1

Section 4 - Mounting ............................................................................................ 4-1

Section 5 - Analog Output Calculations ............................................................ 5-1

Section 6 - Calibration .......................................................................................... 6-1

Section 7 - Maintenance ....................................................................................... 7-1

Section 8 - Specifications ...................................................................................... 8-1

HH94B SERIES

Temperature/Relative Humidity Transmitter

Page 4

HH94B SERIES Temperature/Relative Humidity Transmitter

List of Figures

Figure Description Page

3-1 Electrical Connection With Stripped Leads Termination ............ 3-1

3-2 Electrical Connection With 4-Pin Connector Termination .......... 3-1

4-1 General Dimensions .......................................................................... 4-1

4-2 HX94B Mounting Hardware ............................................................ 4-1

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Section 1 - Introduction

The OMEGA® HX94B Series Temperature/Relative Humidity Transmitter provides a linearized and temperature compensated output signal of 4 to 20mA, 0 to 1 Vdc, 0 to 5 Vdc or 0 to 10 Vdc for both temperature/relative humidity measurement, depending upon the model selected. The output signals have been calibrated and scaled to 0ºC to 100ºC for temperature and 0 to 100% for relative humidity. The digital temperature and relative humidity sensor is protected by a stainless steel cap that is easily removed for cleaning. The NEMA-4 stainless steel enclosure and IP68-rated cable gland (non-NPT versions only) provide weather tight protection. All units include a 6-foot shielded cable. The cable end terminates in either stripped leads or a 4-pin connector.

Introduction

1-1

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Unpacking

Section 2 - Unpacking

Remove the packing list and verify that you have received all of the intended equipment. If you have any questions about the shipment, please call our Customer Service Department at:

1-800-622-2378 or 203-359-1660. On the web you can find us at: omega.com e-mail: [email protected]

When you receive the shipment, inspect the container and equipment for any signs of damage. Note any evidence of rough handling in transit. Immediately report any damage to the shipping agent.

The carrier will not honor any damage claims unless all shipping material is saved for inspection. After examining and removing contents, save packing material and carton in the event reshipment is necessary.

The following items are supplied in the box with your HX94B transmitter.

• Quick Start Manual, # MQS5495 (1 ea.)

• Wall/Duct Mounting Kit (1 ea.)

• 4-Pin Mating Connector; with connector models only (1 ea.)

• Dewpoint Card (1 ea.)

The following table lists all the HX94B series models and descriptions:

Model No. Description

HX94BC RH/Temperature Transmitter (4 to 20 mA Output) with 1.8 m (6ft) lead wires

through a liquid tight cable gland, terminated in a 4 Pin Connector.

HX94BV0 RH/Temperature Transmitter (0 - 1 Vdc Output) with 1.8 m (6ft) lead wires

through a liquid tight cable gland, terminated in a 4 Pin Connector.

HX94BV1 RH/Temperature Transmitter (0 - 5 Vdc Output) with 1.8 m (6ft) lead wires

through a liquid tight cable gland, terminated in a 4 Pin Connector. HX94BV2 RH/Temperature Transmitter (0 - 10 Vdc Output) with 4 Pin Connector. HX94BCW RH/Temperature Transmitter (4 to 20 mA Output) with 1.8 m (6ft) lead wires

through a liquid tight cable gland. HX94BV0W RH/Temperature Transmitter (0 - 1 Vdc Output) with 1.8 m (6ft) lead wires

through a liquid tight cable gland. HX94BV1W RH/Temperature Transmitter (0 - 5 Vdc Output) with 1.8 m (6ft) lead wires

through a liquid tight cable gland. HX94BV2W RH/Temperature Transmitter (0 - 10 Vdc Output) with 1.8 m (6ft) lead wires

through a liquid tight cable gland. HX94BCNPT RH/Temperature Transmitter (4 to 20 mA Output) with 1/2in male NPT fitting

and 1.8 m (6ft) lead wires. HX94BV0NPT RH/Temperature Transmitter (0 - 1 Vdc Output) with 1/2in male NPT fitting

and 1.8 m (6ft) lead wires. HX94BV1NPT RH/Temperature Transmitter (0 - 5 Vdc Output) with 1/2in male NPT fitting

and 1.8 m (6ft) lead wires. HX94BV2NPT RH/Temperature Transmitter (0 - 10 Vdc Output) with 1/2in male NPT fitting

and 1.8 m (6ft) lead wires.

2-1

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Section 3 - Operation

The HX94B series terminates to a 6-foot shielded cable. The cable end is either stripped leads or terminates to a 4-pin connector. Figures 3-1 and 3-2 illustrate these termination options and how they are to be connected.

HX94B

Operation

BLACK WIRE RED WIRE

GREEN WIRE

WHITE WIRE SHIELD

POWER SUPPLY 9-30Vdc

–

(12-30Vdc FOR

–

0-10Vdc OUTPUT)

–

HUMIDITY

OUTPUT

4-20mA

0-1Vdc 0-5Vdc

0-10Vdc

Figure 3-1. Electrical Connection With Stripped Leads Termination

PIN 4

1234

PIN 3

PIN 2

PIN 1

TEMPERATURE

OUTPUT

4-20mA

0-1Vdc 0-5Vdc

0-10Vdc

POWER SUPPLY 9-30Vdc

–

(12-30Vdc FOR 0-10Vdc OUTPUT)

–

HUMIDITY

OUTPUT

4-20mA

0-1Vdc 0-5Vdc

0-10Vdc

Figure 3-2. Electrical Connection With 4-Pin Connector Termination

TEMPERATURE

OUTPUT

4-20mA

0-1Vdc 0-5Vdc

0-10Vdc

3-1

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Mounting

Section 4 - Mounting

OMEGA’s HX94B transmitters are designed for either wall or duct mounting. A wall/duct mounting kit is included with each unit.

4-PIN

CONNECTOR

1.8 m (6 Ft.)

CABLE

MOUNTING SCREW

MOUNTING BUSHING

HX94B

258 (10.15)

25 TO 214 (1 TO 8.44)

Ø19 (Ø0.75)

VARIABLE DEPTH FLANGE

Figure 4-1. General Dimensions

DUCT WALL

MOUNTING GASKET

MOUNTING PLATE

MOUNTING NUT

REMOVABLE STAINLESS STEEL COVER

DIMENSIONS: mm (in)

MOUNTING

SCREW

CLAMP

HX94B

4-1

Figure 4-2. HX94B Mounting Hardware

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Analog Output Calculations

Section 5 - Analog Output Calculations

To calculate the temperature by measuring the current or voltage output, use the following formulas:

a) To calculate temperature from 4 to 20 mA current output:

Temperature in °C = (Output current in milliamps – 4) / 0.16 (0 to 100 ºC Range)

Temperature in °F = [(Output current in milliamps – 4) / 0.0888] + 32

(32 to 212 ºF Range)

b) To calculate temperature from 0 to 1 volt output:

Temperature in °C = Output voltage in volts / 0.01

(0 to 100 ºC Range)

Temperature in °F = [Output voltage in volts / 0.00555] + 32

(32 to 212 ºF Range)

c) To calculate temperature from 0 to 5 volts output:

Temperature in °C = Output voltage in volts / 0.05

(0 to 100 ºC Range)

Temperature in °F = [Output voltage in volts / 0.02775] + 32

(32 to 212 ºF Range)

d) To calculate temperature from 0 to 10 volts output:

Temperature in °C = Output voltage in volts / 0.1

(0 to 100 ºC Range)

Temperature in °F = [Output voltage in volts / 0.0555] + 32

(32 to 212 ºF Range)

To calculate the relative humidity by measuring the current or voltage output, use the following formulas:

a) To calculate humidity from 4 to 20 mA current output:

Humidity in %RH = (Output current in milliamps – 4) / 0.16

b) To calculate humidity from 0 to 1 volt output:

Humidity in %RH = Output voltage in volts / 0.01

c) To calculate humidity from 0 to 5 volts output:

Humidity in %RH = Output voltage in volts / 0.05

d) To calculate humidity from 0 to 10 volts output:

Humidity in %RH = Output voltage in volts / 0.1

5-1

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Calibration

Section 6 - Calibration

While at our factory, your transmitter has been digitally calibrated and tested to meet or exceed the specifications outlined in this manual. The transmitter must be sent back to Omega Engineering, Inc. for any re-calibration request.

6-1

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Section 7 - Maintenance

If your Humidity transmitter will be used in a dusty environment, the protective cap, if clogged, may be removed for cleaning. Unscrew the protective cover and gently blow compressed air into the cap and around the sensor area.

If the sensor is subjected to 100% condensation, it must be dried to obtain correct readings. There will be no permanent damage or calibration shift to the unit.

Units should not be exposed to high concentrations of ammonia or alcohol vapors.

Maintenance

7-1

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Specifications

Section 8 - Specifications

TEMPERATURE Measuring Range: 0 to 100ºC (32 ºF to 212ºF)

Accuracy: ±0.6ºC from 0 to 50ºC (32 to 122ºF)

±1.25ºC from 50 to 100ºC (122 to 212ºF)

Repeatability: ±0.2ºC (0.4ºF)

Response Time: 5 Seconds min., 30 seconds max.

Sample Rate: 1 Sample every 4 seconds

RELATIVE HUMIDITY Measuring Range: 0 to 100%RH

Accuracy: ±2.5 % from 20 to 80% RH

±3.5% from 5 to 20% and 80 to 95% RH ±4% from 0 to 5% and 95 to 100% RH

Hysteresis: ±1%RH

Repeatability: ±0.1%RH

Response Time: 8 Seconds typical

Sample Rate: 1 Sample every 4 seconds

Operating Temperature Range: 0 to 100ºC

Analog Outputs Temperature: 4-20mA, 0-1V, 0-5V, 0-10V Humidity: 4-20mA, 0-1V, 0-5V, 0-10V

Input Power Supply: 9 to 30 Vdc @ 100mA: 4 to 20mA, 0-1V, 0-5V

output 12 to 30 Vdc @ 100mA: 0 to 10V output

Max Current Loop Resistance: Ohms = [(V supply - 4V) /0.02A)] -50 200 Ohms @ 9V supply or

1250 Ohms @ 30V supply

Max Load Resistance: 1.25 K (For all voltage outputs)

Sensor Type: Digital Sensor

Enclosure Housing: 316 Stainless Steel, NEMA 4; non-NPT version

includes IP68-rated cable gland

8-1

Electrical Connections HX94B**W, HX94B**NPT: 1.8m (6ft) 4 conductor Teflon shielded cable

with stripped leads termination HX94B**: 1.8m (6ft) 4 conductor Teflon shielded cable

with a 4-pin connector termination. A 4-pin mating connector is included that accepts 18 to 26 AWG wire

Dimensions: 258mm L x ø19mm OD

(10.15in L x ø0.75in OD)

Weight: 200g (7 oz) with mounting kit

Page 13

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.

FOR WARRANTY RETURNS, please have the following information available BEFORE contacting OMEGA:

1. Purchase Order number under which the product was PURCHASED,

2. Model and serial number of the product under warranty, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering.

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.

FOR NON-WARRANTY REPAIRS, OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems relative to the product.

consult

Page 14

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Process Measurement and Control?

OMEGA…Of Course!

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M5495/0722