DPS Telecom

“Your Partners in Network Alarm Monitoring”

Omega HX93A

Operation Guide

Fig. 1 – The Omega HX93A can be used in conjunction with the NetGuardian or the KDA.

1.1

Summary of Features

• Measures temperature and relative humidity of a network site

• ABS plastic watertight enclosure

• Easy connection to the NetGuardian or the KDA

1.2

Description

The Omega HX93A, used in conjunction with the NetGuardian or the KDA(with an analog card), allows a network manager to monitor the environmental status of a network site. The unit measures the temperature and relative humidity of the immediate network area, thus providing pertinent environmental information from equipment sites.

The Omega HX93A measures temperatures between –4 degrees and +167 degrees Fahrenheit (–20 to +75 degrees

Celsius). It also gauges relative humidity between the range of 3% to 95%. The NetGuardian or KDA(with an analog card) send alarm notifications to the network managers, via analog alarm inputs, if either the temperature or the relative humidity approaches levels that are too high or too low. Proper equipment operation thresholds are determined by the user, which when exceeded, will trigger an alarm condition.

See figure 1.2 below for a typical Omega HX93A installation.

NetGuardian

OR

Omega

HX93A

KDA

September 14, 2004

(800) 622-3314

Fig. 1.2 - The Omega HX93A can be connected to the NetGuardian or the KDA.

1

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Table of Contents

1.1 Summary of Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 Shipping List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Omega HX93A connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1.1 DC to DC converter power connection . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1.2 Determining Alarm Threshold Values . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1.2.1 Converting Volts to meaningful measurements . . . . . . . . . . . . . . . . 4

2.2 NetGuardian connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.1 Power connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.2 NetGuardian communication lines . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.2.3 NetGuardian analog jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.2.4 Software configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.3 KDA connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3.1 Power connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3.1.1 Power connection without a DC to DC Converter . . . . . . . . . . . . . . 9

2.3.2 KDA communication lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.3 KDA analog jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2.3.4 KDA software configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.3

Shipping List:

Package D-PK-280-10A-00

Omega HX93A

D-PR-591-10A-00

“Y ou r Pa rtn

DPS T ers in Networ elecom k Ala rm ing

”

Omega HX93A

Oper ation Gu ide

1.1

Fig. 1 –

The Omega HX93A

Summary of Features

• ABS plastic watertight enclosure

can be used in conjunction with the NetGuardian or

1.2

Description

immediate network area, thus providing pertinent environmental information from equipment sites.

Celsius). It also gauges relative humidity between the range of 3% to 95%. send alarm notifications to the network managers, via analog alarm inputs, if either the temperature or the relative humidity approaches levels that are too high or too low when exceeded, will trigger an alarm condition.

See figure 1.2 below for a typical Omega HX93A

the KDA.

The unit measures the temperature and relative humidity of the

NetGuardian

. Proper equipment operation thresholds are determined by the user installation.

The NetGuardian or KDA(with an analog card)

OR

September 14, 2004

(800) 622-3314

Fig. 1.2 -

KDA

The Omega HX93A

, which

can be connected to the NetGuardian or

1

Omega

HX93A the KDA.

www

Omega HX93A Operation Guide

OG00B.14130

September 14, 2004

(800) 622-3314

Mounting screws

–48 VDC to +12 VDC Converter

D-PC-766-10A-00

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1.4

Specifications

HX93A (D-PR-591-10A-00)

A. Mechanical

Dimensions:

Weight:

3.14" (80mm) x 3.22"

(82mm) x 2.16” (55mm)

8 oz. (227 grams) max.

Connectors: Liquid-tight nylon with neoprene gland, for .09" to .265" diameter cables. Internal 4-pin terminal block accepts # 14-22 AWG wires.

B. Relative Humidity

Input Voltage Range:

RH Range:

Accuracy:

RH Temperature

Compensation Range:

HX93A RH Output:

RH Time Constant:

6 to 30 VDC

(polarity protected)

3% RH to 95% RH

±2% RH

–4°F to +167°F

(–20°C to +75°C)

4 to 20mA for 0 to 100% RH

(for 90% response at 25°C; in moving air, 1M/sec.)

Less than 10 seconds, 10% RH to 90% RH

Less than 15 seconds, 90% RH to 10% RH

±1% RH Repeatability:

C. Temperature

Input Voltage Range:

Temperature Range:

Accuracy:

HX93A Temperature

Output:

Temperature Time Constant:

Repeatability:

Total current draw:

6 to 30 VDC (polarity protected)

–4°F to +167°F (–20°C to +75°C)

±1°F (±0.6°C)

4 to 20mA for -20°C to +75°C

(for 63.2% response) Less than 9 seconds in moving air (1M/sec); Less than 30 seconds in still air.

±0.5°F (±0.3°C)

30mA

DC to DC converter (D-PC-766-10A-00)

Input Voltage Range:

Output Voltage Range:

Output Current:

Internal Input Fuse:

–36 to –72VDC (polarity protected)

+12 VDC

250mA

250mA

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Installation

Chapter 2

2.1

Omega HX93A connections

The Omega HX93A can be connected to the NetGuardian or the KDA. The installation section is broken up into two sections, one for installation with a NetGuardian, and one for installation with a KDA.

The Omega HX93A is a current output device. It measures Temperature from –4 to 167º F and Relative Humidity from 3 to 95% RH and outputs 4 to 20 mA of current for each of its measurements. Each hosts installation section details the hardware and software setup for using the sensor.

2.1.1 DC to DC converter power connection

The Omega sensor can be powered by an optional DC to DC converter (See figure 2.1.1). The converter supplies a +12

VDC output from a –48 VDC input. Up to 250mA are output so multiple sensors can be connected to the same converter.

Refer to the individual host sections in this manual for specific connection information to the DC to DC converter.

Fig. 2.1.1 - The Omega HX93A can be powered by a –48 VDC to +12 VDC converter.

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2.2

Installing with a NetGuardian

2.2.1 NetGuardian analog jumper settings

1. Carefully open the NetGuardian case by removing the outer screws.

2. Lift the lid of the NetGuardian to reveal the PC board as shown in figure 2.2.1a.

3. Locate the 8 analog input jumpers underneath the daughter board (See figure 2.2.1a).

4. Refer to Table 2.2.1 to determine which jumpers correspond the analog inputs to be used by the Omega HX93A.

Switch the jumpers for the analog channel you are using from the un-jumpered/open position measuring voltage

(default), to the jumpered/closed position (See figure 2.2.1b).

5. Close the lid and replace the 4 case screws and 4 hex jack screws.

Underneath the daughter board

J15, J16, J18, J20, J21, J22, J23, J24

Fig. 2.2.1a - The jumper default position is unjumpered/open to measure voltage. Switch the jumpers for the inputs used by the Omega HX93A to the jumpered/closed position.

Fig. 2.2.1b - A jumper in the jumpered/closed position.

Tbl. 2.2.1 - Analog alarm jumper numbers

Analog Alarm #

1 2 3 4 5 6 7 8

Jumper PCB Ref. #

J15 J16 J18 J20 J21 J22 J24 J23

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2.2.2 Wiring Connections

1. Power down the the NetGuardian (remove the fuse).

2. Remove the cover of the Omega HX93A by removing the 4 screws from the face plate.

3. Connect wires from both screw-lug terminals #1 to the positive terminal of a 6-30 VDC power supply (Output of the

DC to DC converter).

4. Connect wires from both screw-lug terminals #3 to the positive input pins of the desired analog alarms. In the figure below, terminal 1 connects to Amphenol pin 19 for analog channel 1B, and terminal 3 connects to Amphenol pin 20 for analog channel 2B. Refer to Table 2.2.2 for pin numbers for each analog alarm input.

5. Connect wires from the ground or negative output of the 6-30 VDC power supply (GND of the DC to DC converter) to the negative inputs of the analog alarms being used.In the figure below, pins 44 and 45 are used for analog alarms

1 and 2. Refer to Table 2.2.2a and b for pin numbers for each analog alarm input

6. If using the DC to DC converter, connect it to a 48 VDC power supply.

7. Power up the NetGuardian when all connections have been made and proceed to provision the NetGuardian software for the Omega HX93A.

Precautions

• Always observe electrostatic discharge (ESD) precautions.

Rel. Humid.

ADC 1A

ADC 1B

-

J15 pin 44

R s

+

= 250 pin 19

+

1

Omega HX93

Sensor

2 3 Temp.

Net Guardian

ADC 2A

Temp.

ADC 2B

pin 45

J16

R s

+

= 250 pin 20

1 2 3

+

Rel. Humid.

GND

-48VDC

INPUT

GND

DC to DC Converter

-48V IN

+12V OUT

+12VDC OUTPUT

+

Fig. 2.2.2 - Functional schematic of connection to the NetGuardian.

Tbl. 2.2.2a - Analogs 1-6

Amphenol pins

Analog Alarm # 1 2 3 4 5 6

Positive (+) Pin

Number

Negative (–) Pin

Number

NetGuardian

Jumper #

19

44

20

45

21

46

22

47

23

48

24

49

J15 J16 J18 J20 J21 J22

Tbl. 2.2.2b - Analogs 7-8

Screw lug

Analog Alarm # 7 8

Positive (+) Pin

Number

Negative (–) Pin

Number

NetGuardian

Jumper#

B

A

B

A

J23 J24

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2.2.4 NetGuardian Software configuration

1. Open a web browser and go to the IP address of the NetGuardian to be configured. (See NetGuardian Manual for details on using the web interface. The text interface may also be used to configure the analog alarms.)

2. Login to the NetGuardian, then click on the “Edit” menu link in the left frame of the window.

3. Click on the Analogs link to bring up the Analogs screen.

4. Enter a Description for the inputs being used such as “Temperature” or “ Relative Humidity.” Wait to enter the thresholds until you have setup the scaling for that input.

5. Check mark the Trap check box to send SNMP traps for that alarm. then set the Primary and Secondary pager IDs. Refer to the NetGuardian manual for detailed field descriptions and web browser interface details.

6. Click on the Unit link to configure the scale and offset for each alarm.

3. Click on the

“Unit” abbreviation to configure the reference and native unit settings

1.

2.

Fig. 2.2.4a - Provision the NetGuardian with the Omega HX93A information.

Native Unit 1 and 2

Fig. 2.2.4b - The Analog Units menu sets the volts to native units conversion scale from two reference points.

2.2.4.1 Units conversion from Volts

1. Each alarm must have its conversion scale from volts to the units being measured configured before alarm thresholds be set. This is done from the Analog Units screen which is reached by clicking on the Units abbreviation in the

Analog alarms menu.

2. In the Reference 1 and 2 sections, enter the units being measured by that channel (for example, F for Fahrenheit, C for Celsius, RH for Relative Humidity). (See figure 2.2.4b)

The Omega HX93A measures temperature in the range of -4 to 167º F (-20 to 75º C), and relative humidity from 3 to 95%

RH. these are the values that are entered in the Native Unit fields to establish the correct scale and the offset to convert from Volts or milliamps to meaningful units.

3a. For temperature in degrees Fahrenheit, set ‘Native Unit 1’ to -4 and ‘Native Unit 2’ to 167.

For temperature in degrees Celsius, set ‘Native Value 1’ to -20 and ‘Native Value 2’ to 75.

3b. For relative humidity, set ‘Native Value 1’ to 3 and ‘Native Value 2’ to 95.

VDC reference 1 and 2 correspond to the electrical output of the sensor in volts . The Omega HX93A outputs from 4 to

20mA of current to indicate the temperature and the relative humidity. Since a 250 ž shunt is inserted by the jumper, as described in section 2.2.1, 1 to 5 volts will correspond to 4 to 20mA of current. This is determined using Ohms law

(E=IR: .004A x 250ž = 1 V and .020A x 250ž = 5 V).

4. Click the “Submit Data” button to enter the changes.

5. Now enter the Thresholds at which an alarm will be triggered. Threshold values will be rounded to the nearest measurable value and might not be the exact numbers entered.

6.

After all data has been entered, Logout of the NetGuardian by clicking the Logout link in the upper right corner.

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2.3

Installing with a KDA

The Omega HX93A can only be used in conjunction with an 8 or 16 Channel Analog card in the expansion slot of the KDA. The pinouts and connections are the same whether the 8 or 16 Channel Analog card is being used.

2.3.1 Wiring connections

1. Power down the KDA.

2. Remove the cover of the Omega HX93A by removing the 4 screws from the face plate.

3. Connect wires from both screw-lug terminals #1 to the positive terminals of a 6-30 VDC power supply (Output of DC to

DC converter). (See figure 2.3.1)

4. Connect wires from both screw-lug terminals #3 to the positive input of the analog Alarm channels being used. (Refer to the

Expansion card operation guide for the pinouts of the various connectorization options).

5. Connect the ground or negative output of a 6-30 VDC power supply (GND of the DC to DC converter) to the negative input of the analog Alarm channels being used. (Refer to the Expansion card operation guide for the pinouts of the various

connectorization options).

6. If using the DC to DC converter, connect it to a -48 VDC power supply. (See figure 2.3.1)

7. Do not power up the KDA until all of the hardware installation procedures in this manual are complete.

Rel. Humid.

–

J5

R s

= 250

+

KDA Analog

Expansion Card

Temp.

–

J4

R s

= 250

+

+

Omega HX93

Sensor

1 2

3

Temp.

1 2

3

+

Rel. Humid.

48VDC

INPUT

+

GND

DC to DC Converter

48V IN

12V OUT

12VDC OUTPUT

+

Fig. 2.3.1 - Functional schematic of connection to a KDA.

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2.3.3 Analog card jumper settings

The Omega HX93A outputs temperature and relative humidity as current readings. The analog alarms measure voltage by default, however they may be individually configured to measure current with a circuit board jumper. For the analog inputs being connected to the Omega HX93A, the jumper corresponding to that input must be switched to the closed position.

1. Remove the 8 or 16 Channel Analog Monitor from the KDA.

2. Refer to Table 2.3.3 to see which jumpers correspond to the analog alarm channels to be used for the

Omega HX93A.

3. Place those jumpers in the jumpered/closed position.

3. Reinsert the 8 or 16 Channel Analog Monitor into the KDA.

J4 -J17,

J19 -J20

Fig. 2.3.3a - The jumper default position is unjumpered/open to measure voltage. Switch the jumpers for the inputs used by the Omega HX93A to the jumpered/closed position.

Fig. 2.3.3b - A jumper in the closed position.

Tbl. 2.3.3 - Analog channel jumper numbers. The grey portion applies only to the 16 Ch. Analog card.

Analog Channel #

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Jumper

PCB Ref. #

J4 J5 J6 J7 J8 J9 J10 J11 J12 J13 J14 J15 J16 J17 J19 J20

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2.3.4 T/KdaW software configuration.

After the hardware has been installed and the jumper settings properly configured, proceed to configure the analog channels connected to the Omega HX93A from T/KdaW. For further software details, please refer to the T/KdaW manual.

1. From the main menu, select ‘Hardware Setup’.(See figure 2.3.4a)

2. Verify that the Analog card installed in the KDA is listed in the appropriate Expansion Card field.

3. Click “OK.”

Fig. 2.3.4a - The ‘Hardware Setup’ menu can be accessed from the main menu.

4. Select the ‘Base Unit’ menu by clicking on the button.

5. From the ‘Base Unit’ pop-up menu, select the ‘Expansion Analogs’ tab. (See figure 2.3.4b)

6. Enable the expansion analog(check mark the ‘Enabled” box) and enter a description (for example,. Rel. Humidity and Temperature). (See figure 2.3.4b)

Fig. 2.3.4b - The Expansion Analogs tab is only available is an analog expansion card has been selected in the

Hardware setup menu

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7. Click on the ‘...’ (ellipsis) next to the number you have enabled to bring up the scaling worksheet. (See figure 2.3.4b)

8. At the ‘Native Units’ section enter the units being measured by that channel (for example, F for Fahrenheit, C for

Celsius, RH for Relative Humidity). (See figure 2.3.4c)

Native value 1 and Native value 2 correspond to the measurement range of the sensor. The Omega HX93A measures temperature in the range of -4 to 167º F (-20 to 75º C), and relative humidity from 3 to 95% RH. these are the values that are entered in the Native Value fields to establish the correct scale and the offset to convert from Volts or milliamps to meaningful units.

9a. For temperature in degrees Fahrenheit, set ‘Native Value 1’ to -4 and ‘Native Value 2’ to 167.

For temperature in degrees Celsius, set ‘Native Value 1’ to -20 and ‘Native Value 2’ to 75.

9b. For relative humidity, set ‘Native Value 1’ to 3 and ‘Native Value 2’ to 95.

Analog value 1 and analog value 2 correspond to the electrical output of the sensor in volts or milliamps. The Omega

HX93A outputs from 4 to 20mA of current to indicate the temperature and the relative humidity.

10. Set the ‘Analog Units’ to Milliamps, the ‘Analog Value 1’ to 4 and the ‘Analog Value 2’ to 20.

11. Click ‘O.K.’(See figure 2.3.4c)

Fig. 2.3.4c - Clicking on the ‘...’ next to an enabled channel brings up the scaling worksheet shown here.

12. Set the thresholds at which an alarm condition will be triggered by entering the numbers in the space provided (see figure

2.3.4b). The Omega measures temperature between -4 and +167 degrees Fahrenheit (-20 to +75 degrees Celsius) and relative humidity between 3% and 95%.

Note: The thresholds are automatically rounded up or down to the nearest measurable value.

13. Select other Analog channel parameters as necessary. (Dial Alarms, Qualifying time, etc.) Refer to the T/KdaW manual for in depth T/KdaW information.

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“We protect your network like your business depends on it.”™

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4955 E. Yale Avenue • Fresno, CA 93727

(559) 454-1600 • (800)622-3314 • (559) 454-1688 fax

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