Omega PHCN-5700 User guide

RELAY 1

User’s Guide

7

6

4

pH

8

10

RELAY 2

2

0

12

14

ENTER

®

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www.omega.com

e-mail: [email protected]

PHCN-5700

pH/ORP indicator pH Instructions

OMEGAnet® Online Service Internet e-mail

www.omega.com [email protected]

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®

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OMEGA PHCN-5700 pH/ORP Indicator - pH Instructions

CAUTION!

• Refer to instruction manual for more details.

• Remove power to unit before wiring input and output connections.

• Follow instructions carefully to avoid personal injury.

Contents

1. Power Connections

2. Compatible Electrode/Preamp Wiring

3. 4 - 20 mA Current Output Connections

4. Relay Connections

5. Relay Operation

Remove terminal blocks for easy wiring

1.

Std. Sensor

U

L

1 2

LISTED 77CJ

1 2 3 4 5 6

Freq. IN

Iso. Gnd

Sen. Pwr.

Open Collector Sensor

12-24 V

10 W

+

PLS

output

-

Gnd

1 2 3 4

Gnd

+

AUX

output

2

1

Total reset

Flow

Patent No. D376,328

6. Menu Functions

7. Parts and Accessories

8. Specifications

9. Quick Reference Menu Parameters

10. Troubleshooting

11. Maintenance

2.

1 2

3.

Std. Sensor

U

L

1 2

1 2 3 4 5 6

Freq. IN

Iso. Gnd

Sen. Pwr.

Open Collector Sensor

LISTED 77CJ

12-24 V

10 W

+

PLS

output

-

Gnd

1 2 3 4

Gnd

+

AUX

output

2

1

Total reset

Flow

Patent No. D376,328

1. Power Connections 2. Compatible Electrode/Preamp Wiring

CAUTION! Never connect 110 VAC or 220 VAC to rear power terminals. High voltage AC will damage instrument and void warranty.

PHCN-5700

= Double Insulated = DC or AC power

12-24 V

10 W

+

-

Terminals

-

+

External power supply

12 - 24 VDC

OR

12 - 24 VAC

Technical Notes:

• To reduce the possibility of noise interference, isolate AC power lines from signal lines.

• Maximum 4-20 mA loop impedance (sec. 3) is affected by the supply voltage.

3. 4-20 mA Current Output Connections

To isolate output and prevent ground loop problems:

1. Use monitor device with isolated inputs, or

2. Use separate DC supply for PHCN-5700 and monitor device, or

3. Power PHCN-5700 with12 - 24 VAC step down transformer

Technical Notes:

**1/8A fuse recommended (customer supplied) * 4-20 mA output is internally powered (non-isolated), maximum loop impedance 350 Ω with a 12 V instrument supply voltage, 950 Ω with a 24 V instrument supply voltage.

Technical Notes:

• Use six conductor shielded cable for cable extensions up to 120 m (400 ft) max.

• Cable shield must be maintained through cable splice

Silver (earth ground)

Brown

Blue

Green

White

T -

T +

Blue wire

White wire

Green wire

Brown wire

Iso. Gnd

mV Input

Fuse**

1/8A

+

-

4-20

mA

Red

V +

Red Wire

Black

V -

Black wire

pH/ORP

+

-

4-20

mA

pH/ORP

4 - 20 mA*

+

*

-

PHCN-5700 Terminals

Preamp: OMEGA PH-2720-PA

pH Electrodes: OMEGA PHE-3271

OMEGA PHE-2716

PHCN-5700 Terminals

4. Relay Connections

Two internal relay contact sets (COM, NO, and NC) may be used for external device control. Front panel LED annunciators indicate the activation status of each relay. Each relay can control up to two devices simultaneously, as shown. Relay operation modes include Low alarm, High alarm, and Proportional Pulse (sec. 5).

Common device connections include:

• Pulse mode - metering pump control

• Pulse mode - solenoid valve control

• Low or High mode - warning lamps

• Low or High mode - bells or sirens

• Low or High mode - external heavy-duty relay

PHCN-5700

Terminals

NO

C

NC

+

External AC/DC

Relay 1Relay 2

NO

power

Relay

De-energized

C

NO

NC

C

NC

Device

+

A

-

Relay

Energized

C

NO

NC

-

Device

B

+

Wiring Example Right

Device A IS powered when relay 2 is de-energized (front panel LED "off"). Power is discontinued when the relay 2 setpoint is reached (front panel LED "on"). Device B IS NOT powered when the relay 2 is de-energized. Power is applied after the relay 2 setpoint is reached.

Technical Notes:

• Maximum relay contact ratings: 5 A @ 30 VDC, 5 A @ 125 VAC, or 3 A @ 250 VAC

• An external heavy-duty relay must be used for devices with surge currents or operating currents that exceed the above specifications.

5. Relay Operation

A. LOW alarm mode

The relay is energized when the pH drops below the setpoint, and is de-energized when the pH rises above the setpoint plus hysteresis (sec. 6.3E, 6.3F).

pH

Low setpoint=

Adjustable hysteresis=

Relay energized=

Relay de-energized=

C. Proportional PULSE mode

The proportional pulse relay configuration is primarily designed for metering pump control. The operator is prompted to enter a minimum and maximum pH setpoint and maximum pulse rate for the assigned relay (sec. 6.3G, 6.3H). Relay pulse width is fixed at 130 ms. Refer to the operation examples below.

• Metering pump chemical addition (dry contact activation type required)

B. HIGH alarm mode

The relay is energized when the pH rises above the setpoint and is de-engergized when the pH falls below the setpoint plus hysteresis (sec. 6.3E, 6.3F).

High setpoint=

Adjustable hysteresis=

Relay energized=

Relay de-energized=

pH

300 pulses

Example 1 (right):

As the process pH rises above the minimum pulse setpoint (4.00 pH) the relay begins pulsing; triggering the metering pump for chemical addition. As the pH continues to rise, pulsing accelerates proportionally until the maximum programmed pulse rate of 300 pulses/minute and setpoint (10.00 pH) are reached, forcing the process pH back down to intended levels (e.g. ≤4.0 pH).

Example 2 (right):

As the process pH falls below the minimum pulse setpoint (10.00 pH) the relay begins pulsing; triggering the metering pump for chemical addition. As the pH continues to decrease, pulsing accelerates proportionally until the maximum programmed pulse rate of 300 pulses/minute and setpoint (4.00 pH) are reached, forcing the process pH back up to intended levels (e.g. ≥10.0 pH).

pH

0 pH

300 pulses

Relay 1 or Relay 2

4

0 pulses

3

Relay 1 or Relay 2

4 10

0 pulses

10

14 pH

pH

14 pH

6. Menu Functions

To access either CALIBRATE or OPTIONS menus, press and hold the ENTER key as illustrated below:

Press & hold for

ENTER

access:

VIEW

Menus:

• VIEW menu (sec. 6.1): The VIEW menu is displayed during

standard operation. The operator can navigate freely through the menu by pressing either UP or DOWN arrow keys.

• CALIBRATE Menu (sec. 6.3): The CALIBRATE menu contains all

critical display setup and output parameters. A simple security code feature prevents unauthorized tampering. The operator is required to enter a simple access code for menu access. The same code also unlocks OPTIONS menus.

• OPTIONS Menu (sec. 6.4): The OPTIONS menu contains setup and

display features that are seldom accessed for minor display or output adjustments.

CALIBRATE

6.1 VIEW Menu

1

Choose:

↓H

A.

pH/temperature

B.

mV input

C.

Loop output

OPTIONS

2s 5s

Change:

-10

A

L A R

M

1

0

-

+

• Reversible Dial

10

Your PHCN-5700 includes a reversible dial face for ORP use. See

BA

enclosed ORP manual for operation details.

2

3

O

R

0

P

0

A

L A R

M

2

-

1

0

+

D

1

0

C

A L

A R

M

1

p

H

A L

A R

M

2

0

1

4

Save:

Menu Displays A - H:

(Factory default displays shown in menu column 1)

A. Active pH and temperature display

B. Input display: shows electrode

input mV

C. Loop output display: shows the loop

current output level.

D. pH range display: shows the

programmed min and max meter range (sec. 6.3A)

D.

E.

F.

G.

H.

Range

Relay 1

Relay 2

Last calibration

Buffer calibration

E. Relay 1 display: this display shows

the programmed operation mode and setpoint for relay 1 (sec. 6.3E)

F. Relay 2 display: this display shows

the programmed operation mode and setpoint for relay 2 (sec. (6.3E)

G. Last calibration: this display shows a

user defined setup date for maintenance records. This feature is not an internal timer or calender.

H. EASY CAL: press the right arrow key

to access the EASY CAL buffer calibration procedure (sec. 6.2).

Press and release to access

EASY CAL Procedure

↑A

See EASY CAL Procedure (Section 6.2)

6.2 EASY CAL Procedure

Requirements

• This procedure simplifies system calibration using standard pH buffers. Use pH 4.0, 7.0, 10.0 pH buffers only (sec. 7). If standard pH buffers are not available, the system can be calibrated using the

CALIBRATE menu temperature, standard, and slope settings (sec. 6.3B-D).

• Access CALIBRATE menu (sec. 6.3B) and set sensor temperature before performing EASY CAL for new electrode installation.

1

To Calibrate:

Place electrode tip in first pH buffer;

pH 4.0, 7.0 or

10.0

Place electrode tip in second (different) pH buffer;

Press keys in sequence will appear during code entry.

2

Response:

Allow for stabilization Press

1

30 seconds*

Allow for stabilization Press

to continue,

3

To Accept:

ENTER

to accept

first buffer calibration.

ENTER

to accept

second buffer calibration.

*

For best results, gently stir the submerged electrode for approximately 5 seconds during the stabilization period (step 2).

Large temperature differences from process fluids to buffers may require longer stabilization time.

pH 4.0, 7.0 or

10.0

2

To exit EASY CAL at any time without saving changes:

Technical notes:

The difference between the actual mV reading and value shown in the table below is a good indication of the pH electrode condition. Differences in excess of 50 mV indicate a need to service the electrode. Refer to electrode manual for maintenance recommendations.

Theoretical mV values pH @ 25 °C mV 2 +296 3 +237 4 +177 5 +118 6 +59 70 8- 59 9 - 118 10 - 177 11 - 237 12 - 296

30 seconds*

quick

press

Display returns to VIEW Menu in 3s

6.3 CALIBRATE Menu

Requirements

System calibration is possible with two known pH solutions within 0 to 14 pH and an accurate reference thermometer. The EASY CAL procedure (sec. 6.2) is recommended when standard pH buffers are available. If EASY CAL is performed, manual calibration steps B - D below are not required. Always calibrate solution temperature first (step B below) before setting pH standard and slope (steps C - D below). Single point calibration can be done by setting "Set Standard" (step C) only. Dual point calibration (recommended) can be done by setting "Set Standard" followed by "Set Slope" (steps B-C).

↓I

A.

B.

Electrode temp.

C.

Electrode standard

D.

Electrode slope

E.

F.

G.

H.

I.

Last calibration

To return to VIEW:

1

Choose:

Range

Relay

Press keys in sequence will appear during code entry.

Meter min→max

Allow for stabilization

Relay Low or High Mode Selected

Mode Setpoint

Hysteresis

Relay Pulse Mode Selected, step E

Mode Range

Pulse rate

↑A

Optional

To restore original value:

quick

press

2

Change:

to continue,

quick

press

3

Save:

ENTER

"SAVING"

briefly

displays

Menu Settings A - I :

(Factory default displays shown in menu column 1)

A. Sets Min → Max meter dial range,

00.00 - 14.00 pH (factory installed dial, 00.00 - 14.00 pH). Contact factory for custom dial configurations.

Does not effect 4 to 20 mA

output

B. Sets process solution temperature

C. Sets electrode standard to any value

from 0-14 pH. Standard calibration solution must be 2 pH units from slope solution (step D)

D. Sets electrode slope to any value

from 0-14 pH. Slope calibration solution must be 2 pH units from standard solution (step C)

Menu items E - H repeat for relay 2 setup.

E. Sets relay operation mode Low or

High, and setpoint, 00.00 -

14.00 pH (sec. 5A-B)

F. Sets relay hysteresis, 00.00 -

14.00 pH. Set to zero to disable feature (sec. 5A-B)

G. Sets relay minimum and maximum

pulse setpoint, 00.00 - 14.00 pH (sec. 5C).

H. Sets relay pulse rate, 000 - 300

pulses/minute.

I. Sets user defined setup date for

maintenance records. This feature is not an internal timer or calender

Quick Reference Calibration Procedures:

2-Point Quick Calibration (recommended):

1. Verify/enter solution temperature ±0.5 °C (step B)

2. Set solution standard (step C)

3. Set solution slope (step D)

1-Point Calibration (optional):

1. Verify/enter solution temperature ±0.5 °C (step B)

2. Set solution standard (step C)

6.4 OPTIONS Menu

↓F

A.

B.

C.

D.

E.

F.

Temp. display

To return to VIEW:

Press keys in sequence will appear during code entry.

1

Choose:

Contrast Low -- -- -- -- -- High

Loop output 4 mA setpoint

Loop output 20 mA setpoint

Loop output 4 mA adjust

Loop output

20 mA adjust

Display, °C or °F

↑A

To restore original value:

quick

press

Change:

to continue,

2

3

Save:

Menu Settings A - F:

(Factory default displays shown in menu column 1)

A. Selects display contrast: 5 levels

B. Sets 4 mA setpoint: 00.00 -

14.00 pH. 4 mA and 20 mA setpoints are reversible

C. Sets 20 mA setpoint: 00.00 -

14.00 pH. 20 mA and 4 mA setpoints are reversible

D. Adjusts 4 mA output: 3.0 to 5.0 mA

(overrides factory 4.00 mA calibration)

E. Adjusts 20 mA output: 19 to 21 mA

(overrides factory 20.00 mA calibration)

F. Selects temperature display:

°C or °F. Recalibration is not required when switching from Celsius to Fahrenheit.

quick

press

ENTER

"SAVING"

briefly

displays

7. Parts and Accessories

Splashproof rear cover #FPM-5000-SBCK

• pH buffers 4.0, 7.0, or 10.0; #PHA-4, #PHA-7, #PHA-10

5 x 5 inch adapter plate for OMEGA retrofit #FPM-5000-RAK

Optional surface mount bracket #FPM-5000-MB

Side View

Mounting Clamp (2 ea.)

Optional Splashproof Rear Cover

88 mm (3.5 in.)

Mounting Panel

Panel Gasket

91 mm (3.6 in.)

76 mm (3 in.)

88 mm (3.5 in.)

96 mm (3.8 in.)

8. Specifications

General

Compatible preamplifier: OMEGA PH-2720-PA Compatible electrodes: OMEGA PHE-3271 or PHE-2716 Accuracy: ±0.2% of full scale

Input range:

• pH: 0 to 14, optically isolated

(standard 0 - 14 pH dial included)

• Temperature input: 3 kΩ Balco, -25 to 120 °C (-13 to 248 °F),

optically isolated

Enclosure:

• Rating: NEMA 4X/IP65 front

• Dimensions: 1/4 DIN, 96 x 96 x 88 mm (3.8 x 3.8 x 3.5 in.)

• Case: ABS plastic

• Keypad: Sealed 4-key silicone rubber

• Weight: Approximately 500 g (18 oz.)

Electrical

Power requirements:

• 12 to 24 VDC or 12 to 24 VAC, unregulated, 50-60 Hz, 10 W max.

Relay contacts (2 sets):

• Mechanical SPDT contacts

• Max. voltage rating: 5 A @ 30 VDC,

5 A @ 125 VAC, or 3 A @ 250 VAC, (power factor = 1.0)

• Hysteresis: User adjustable

Current output:

• 4 to 20 mA, non-isolated, internally powered, fully adjustable and reversible

• Update rate: <1s

• Max loop impedance: 350 Ω with a 12 V instrument supply

voltage, 950 Ω with a 24 V instrument supply voltage

• Accuracy: ±0.1% of max. range

Display:

• Type: Microprocessor controlled air-core meter movement and backlit Alphanumeric 2 x 16 LCD

• Update rate: <1s

• Contrast: User selected

• Relay annunciators: 2 LEDs

Environmental

Operating temp.: -10 to 55 °C (14 to 131 °F), 50 °C (122 °F)

max. with optional rear cover

Storage temp.: -15 to 80 °C (5 to 176 °F) Relative humidity: 0 to 95%, non-condensing Altitude: 4000 m max. Pollution degree: 2

Dimensions

Noise immunity: EN50082-2 Noise emissions: EN55011 Safety: EN61010-1

Agency Approvals

• CE

• Manufactured under ISO 9001

RELAY 1

2

0

96 mm (3.8 in.)

7

6

4

pH

8

10

12

®

Front View

14

ENTER

RELAY 2

96 mm (3.8 in.)

(Continued)

Dimensions

Model PHCN-5700

®

88 mm (3.5 in.)

T +

Blue wire

Green wire

Brown wire

Iso. Gnd

mV Input

12-24 V

10 W

+

NO

-

T -

C

White wire

NC

V +

Red Wire

+

-

V -

Black wire

4-20

pH/ORP

mA

88 mm (3.5 in.)

Patent No. D 376,328

Relay 1Relay 2

NO

NC

C

92 x 92 mm

(3.62 x 3.62 in.)

Rear View

9. Quick Reference Menu Parameters

9.1 VIEW Menu Setup Parameters (sec. 6.1)

Menu

Parameters

A.

B.

C.

D.

Display

Description

• Process pH

• Process temperature

Electrode mV

Current loop

output

Min → Max meter

and dial range

input

Range

• 00.00 - 14.00 pH

• Process temperature

-414 -

+414 mV

3 - 21 mA

00.00 - 14.00 pH

Panel cutout

Factory

Default

n/a

00.00 - 14.00 pH

G.

H.

E.

F.

• Relay 1 mode

• Relay 1 setpoint

• Relay 2 mode

• Relay 2 setpoint

Last calibration

Low, High, or Pulse,

00.00 - 14.00 pH

Low, High, or Pulse,

00.00 - 14.00 pH

39 - 39 - 99

Low

4.00 pH

High

10.00 pH

01 - 01 - 98

date

EASY CAL

procedure

Two buffers required:

pH 4, 7, or 10 (sec. 6.2)

n/a

9.2 CALIBRATE Menu Setup Parameters (sec. 6.3)

A.

C.

D.

G.

H.

Menu

Parameters

B.

Manual electrode standard

E.

F.

Display

Description

Min → max

meter dial range

Process

temperature

calibration

Manual electrode slope

calibration

• Relay 1 mode

• Relay 1 setpoint

Relay 1 hysteresis

• Relay 1 mode

• Relay 1 range

Relay 1

pulse rate

Range

00.00 - 14.00 pH

Solution temperature

±30 °C (±86 °F)

00.00 - 14.00 pH

(must be 2 pH units

from Slope

00.00 - 14.00 pH (must be 2 pH units

from Standard)

Low or High

00.00 - 14.00 pH

Pulse

00.00 - 14.00 pH

000 - 300

pulses/minute

Factory

Default

00.00 - 14.00 pH

n/a

Low

4.00 pH

1.00 pH

4.00 - 10.00 pH

120

pulses/minute

Relay mode and setpoint displays repeat for relay 2 setup

I.

Last calibration

date

9.3 OPTIONS Menu Setup Parameters (sec. 6.4)

Menu

Parameters

A.

B.

C.

D.

Display

Description

Display contrast

4 mA setpoint

20 mA setpoint

4 mA adjust

00 - 00 - 00 -

39 - 39 - 99

Range

0 to 5

00.00 -14.00 pH

00.00 - 14.00 pH

3.0 to 5.0 mA

01 - 01 - 98

Factory

Default

3

0.00 pH

14.00 pH

4.00 mA

E.

F.

20 mA adjust

Temperature

display

19 to 21 mA

°Celsius or

°Fahrenheit

20.00 mA

°C

10. Troubleshooting

↑

Display Problem Solution

1. ORP: +1000 mV ORP electrode Remove ORP electrode and replace with recommended pH

Input: + 998 mV installed in preamplifier electrode (sec. 2)

Input: + 998 mV installed in preamplifier electrode (sec. 2) (example

(example↑)

2A. Out Of Range Electrode not installed in 1) Verify temperature input connections and electrode installation (sec. 2)

CHECK SENSOR preamplifier 2) Disconnect Green and White preamplifier wires from rear T+ and T-

)

terminals. Measure resistance across disconnected wires for 2.9 kΩ - 3.1 kΩ

Temperature input miscalibrated at 25 °C (77 °F). If measured resistance is out of range:

or out of range during power up • Wrong electrode installed in preamplifier (ORP electrode=10 kΩ). Replace

terminals. Measure resistance across disconnected wires for 2.9 kΩ - 3.1 kΩ

ORP electrode with pH electrode.

• Faulty preamplifier contacts, see preamplifier manual for additional

information.

• Faulty electrode, see electrode manual for additional information.

3) To verify instrument input:

• Disconnect Green and White preamplifier wires from rear T+ and T-

terminals, then install a 3 kΩ fixed resistor across the terminals.

• Power instrument and verify 25 °C (77 °F) on display. If 25 °C (77 °F) is

not displayed, calibrate temperature input for 25 °C (sec. 6.3B).

• If instrument displays correctly after calibration, instrument is ok.

If error condition persists, instrument requires factory service.

2B. CHECK Temperature input missing or Refer to solution steps 1 - 3 above.

SENSOR? out of range during power up

2C. Temperature Bad Temperature input missing or Refer to solution steps 1 - 3 above

CHECK SENSOR out of range during EASY CAL

procedure (sec. 6.2)

3. Out Of Range pH buffers other than pH 4, 7, • Use pH 4, 7, 10 buffers for EASY CAL procedure (sec. 6.2). Use Manual Cal 10 used during EASY CAL • Use manual calibration to set standard and slope (sec. 6.3C, 6.3D)

procedure or electrode has • Clean electrode (see electrode manual) then retry EASY CAL (sec. 6.2) excess offset

4. ! Same Buffer Same pH buffer used for Use different pH 4, 7, 10 buffer for EASY CAL procedure solution #1 and

EASY CAL buffer 1 and 2 solution #2 (sec. 6.3).

5. 15.00 pH Excessive mV input from Faulty preamplifier, refer to preamplifier manual for additional information + 25.0 °C preamplifier

To verify instrument input:

• Disconnect Brown and Blue preamplifier wires and Install shorting strap

To verify instrument input:

(jumper) across mV input and Iso Gnd terminals.

• Disconnect Brown and Blue preamplifier wires and Install shorting strap

• Power instrument and verify 7.00 pH on display. If 7.00 pH is not

(jumper) across mV input and Iso Gnd terminals.

displayed, calibrate "Set Standard" input for 7.00 pH (sec. 6.3C)

• Power instrument and verify 7.00 pH on display. If 7.00 pH is not

• If instrument displays correctly after calibration, instrument is ok.

displayed, calibrate "Set Standard" input for 7.00 pH (sec. 6.3C)

If error condition persists, instrument requires factory service.

• If instrument displays correctly after calibration, instrument is ok. If error condition persists, instrument requires factory service.

continued

Display Problem Solution

6. ! pH Must Be pH input out of range or A) Use two solutions of known pH within 00.00 - 14.00 pH range for

14.00 Or Less improperly entered during manual Standard and Slope calibration (sec. 6.3C, 6.3D). Standard or Slope calibration B) Enter pH value only within 0.00 - 14.00 pH during standard or slope

calibration (sec. 6.3C - 6.3D)

7. Slope Too Close pH slope calibration too close to (CALIBRATE Menu sec. 6.3D only)

To Standard pH standard calibration Calibrate pH slope using a pH solution ≥2 pH units from the pH

standard solution (sec. 6.3C, 6.3D).

8. Value Must Be Relay, 4 mA, or 20 mA setpoint Enter setpoint within 00.00 - 14.00 pH range (sec. 6.3E)

14.00 Or Less greater than 14.00 pH

9. Value Must Be Relay pulse setting greater than Enter relay pulse setting within 0 - 300 pulses per minute (sec. 6.3H)

300 Or Less 300 pulses per minute

10. SETUP READ ERROR Power fault occurred while Press any key to reload factory defaults then reprogram system setup

Press any Key saving setup menu entry parameters.

11. Maintenance

Clean the instrument case and front panel with a soft cloth and a mild liquid soap solution.

Notes:

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 which wear are not warranted, including but 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 it will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS 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, 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 OMEGA

Where Do I Find Everything I Need for

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Shop online at www.omega.com

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6-5700.090-OM/(H-6/01) M-2580A/06701