Omega PHCN-37 Troubleshooting guide

MQS1570/1206 12700ML-99 Rev. D
W RR NTY/DISCL IMER
OMEGA ENG NEER NG, NC. warrants this unit to be free of defects in
materials and workmanship for a period of one (1) year from the date of
purchase. n addition to OMEGA’s standard warranty period, OMEGA
Engineering will extend the warranty period for four (4) additional year if the
warranty card enclosed with each instrument is returned to OMEGA.
f the unit should malfunction, 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 VO D if the unit shows evidence of having
been tampered with or shows evidence of being 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 i plea ed to offer ugge tion on the u e of it variou
product . However, OMEGA neither a ume re pon ibility for any
omi ion or error nor a ume liability for any damage that re ult
from the u e if it product in accordance with information provided by
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manufactured by it will be a pecified and free of defect . OMEGA
MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY
KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF
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ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedie
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not exceed the purcha e price of the component upon which liability i
ba ed. In no event hall OMEGA be liable for con equential, incidental
or pecial damage .
COND T ONS: 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
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/ D SCLA MER language, and additionally, purchaser will indemnify OMEGA
and hold OMEGA harmless from any liability or damage whatsoever arising
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RETURN REQUESTS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service
Department. BEFORE RETURN NG ANY PRODUCT(S) TO OMEGA, PURCHASER
MUST OBTA N AN AUTHOR ZED RETURN (AR) NUMBER FROM OMEGA’S
CUSTOMER SERV CE DEPARTMENT ( N ORDER TO AVO D PROCESS NG
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 W RR NTY RETURNS, please
have the following information available
BEFORE
contacting OMEGA:
1. P.O. 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.
FOR NON-W RR NTY REPA RS,
consult OMEGA for current repair
charges. Have the following information
available BEFORE contacting OMEGA:
1. P.O. number to cover the COST of
the repair,
2. Model and serial number of product,
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.
OMEGA is a registered trademark of OMEGA ENG NEER NG, NC.
© Copyright 2006 OMEGA ENG NEER NG, NC. All rights reserved.
This document may not be copied, photocopied, reproduced, translated, or reduced
to any electronic medium or machine-readable form, in whole or in part, without
prior written consent of OMEGA ENG NEER NG, NC.
PATENT NOT CE: The “Meter Case Bezel Design” is a trademark of
NEWPORT Electronics, nc., registered in the U.S. USED UNDER L CENSE.
This product is covered by one or more of the following patents: U.S. Pat. No.
Des. 336,895; 5,274,577 / CANADA 2052599; 2052600 / TALY 1249456;
1250938 / FRANCE BREVET No. 91 12756 / SPA N 2039150; 2048066 /
UK PATENT No. GB2 249 837; GB2 248 954 / GERMANY DE 41 34398 C2.
OTHER NTERNAT ONAL PATENTS PEND NG.
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USA
MADE IN
PHCN-37
MICROPROCESSOR-BASED
pH CONTROLLER
t is the policy of OMEGA to comply with all worldwide safety and EMC/EM
regulations that apply. OMEGA is constantly pursuing certification of its products to
the European New Approach Directives. OMEGA will add the CE mark to every
appropriate device upon certification.
W RNING: These products are not designed for use in, and should not be used
for, patient connected applications.
The information contained in this document is believed to be correct but OMEGA
Engineering, nc. accepts no liability for any errors it contains, and reserves the right
to alter specifications without notice.
TR DEM RK NOTICE: , omega.com™, and ,
are trademarks of OMEGA Engineering, nc.
®
This device is marked with the international caution symbol. t is important
to read the Setup Guide before installing or commissioning this device as
it contains important information relating to safety and EMC.
To Configure Temperature (If You
Selected M NU for Temperature
Compensation):
1. Press MENU until the controller
displays.
2. Press T/mV. The controller
displays the actual constant
temperature.
3. Press /pH to change the value
of the flashing digit.
4. Press T/mV to advance to the next digit.
5. Repeat steps 3 and 4 until the controller displays
the desired value.
6. Press MENU to select the value shown. The
unit displays.
7. Press MENU until the controller displays ccaall..22
or ccaall..33.
To Perform Calibration
(2-Point Example:)
1. Place your electrode into a pH 7
buffer solution.
2. Press T/mV. The controller
displays:
3. Press T/mV. The controller
displays the previous value of N 1.
4. Press T/mV again. The
controller displays the buffer
solution’s pH value. Allow enough
time for the electrode to settle.
5. Press MENU until the controller displays.
indicating that the value is stored.
6. Rinse the electrode with distilled water and place
it into a pH4 or pH10 solution.
7. Press T/mV. The controller displays the
previous value of N 2.
8. Press T/mV again. The controller displays the
buffer solution’s pH value. Allow enough time for
the electrode to settle.
9. Press MENU. The controller displays:
indicating that the value is stored.
For a 3-point calibration, you follow the same
procedure used in 2-point calibration, except you
place the electrode into three buffer solutions in
this order: pH4, pH7, and then pH10.
10. Press RESET twice.
The controller displays:
and then the current pH
value.
Your controller is now up
and running.
56
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS

Calibrate the Controller:
1. f it’s not already shown, press MENU until the
controller displays rrdd..ccff.
2. Press T/mV. The controller
displays rr..11 =22or rr..11 =33
(2 or 3 point calibration).
3. Press /pH to select the
desired calibration type.
4. Press T/mV to display
rr..22 =ffor rr..22 =cc
(temperature unit of F or C).
5. Press /pH to select the
desired temperature unit.
6. Press MENU to select the calibration. The unit
displays.
7. Proceed with Calibration depending on
Temperature Compensation Setting:
• f you choose OFF, go to “To Perform
Calibration” section.
• f you choose METR, ensure the RTD is
properly connected and go to “To Perform
Calibration” section.
• f you choose MANU, configure temperature
as described in the next section.
T/mV MENU RESET
/pH
SETPTS T/mV MENU RESET
/pH
SETPTS
SETPTS T/mV MENU RESET
/pH
=
Connect the pH Electrode
1. Secure the pH electrode to the pH input BNC
connector on the back of the controller.
2. f you are using automatic temperature
compensation (ATC), connect the RTD as shown
below.
pply Power
1. Apply ac power to the unit.
The unit initializes, flashing the following
messages: rrsstt, pphh, iinniitt. Then a pH value
appears.
2. Verify that a value appears. f not:
• Remove ac power.
• Verify the TB1 power connections.
• Check your power source.
• Apply ac power again.
TB1
TB2
123456
78910 12311 12
RTD
+-
TB1
TB2
123456
78910 12311 12 +-
pH Input
pH Electrode
ST RT HERE
234
Using This Quick Start Manual
Use this Quick Start manual to set up your pH
Controller and begin operation. nformation is provided
on how to:
• Mount the controller
• Connect ac Power
• Connect a pH electrode
• Calibrate the controller prior to use
For complete information on this controller, refer to the
Operator’s Manual.
Before You Begin
n addition to the meter and the related parts, you will
need the following items to set up your meter:
• ac power, as listed on meter’s D/Power Label
• pH electrode (with BNC input connector)
•1⁄8” flat blade screwdriver
Mount the Unit
1. Cut a panel opening using
the dimensions shown to
the right.
2. Position the unit in the
opening, making sure the
front bezel gasket is flush
to the panel.
3. Slide on mounting bracket to secure.
Connect ~ac Power
Warning: Do not connect AC power to your device until you
have completed all input and output connection . Thi
device mu t only be in talled by a pecially trained
electrician with corre ponding qualification . Failure to
follow all in truction and warning may re ult in injury!
1. Remove the panel at the back of the unit.
2. Locate the TB1 connector.
3. nsert the correct wire in each terminal as shown in the
following figure and tighten the lockdown screws.
4. Tug gently on the wires to verify the connections.
To Select Temperature
Compensation Mode:
1. Press MENU. The controller
displays:
2. Press T/mV to display the
current setting.
3. Press /pH to change to the
desired setting. Choices are:
OFF = the controller uses a
constant 25ºC for temperature
compensation.
MANU = the controller uses a manually entered
value for temperature compensation.
METR = the controller uses the RTD input for
automatic temperature compensation.
4. Press MENU to select the temperature
compensation setting shown. The controller
displays.
To Set The Decimal Point Position:
1. f it’s not already shown, press
MENU until the controller
displays ddeecc..pp.
2. Press T/mV. The controller
displays:
3. Press /pH to move the decimal point to the
desired location. The choices are ffff..ffff, ffffff..ff, or
ffffffff.
4. Press MENU to select the decimal point position
shown. The controller displays:
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
SETPTS T/mV MENU RESET
/pH
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
T/mV MENU RESET
/pH
SETPTS
=
45,00 + 0,61/-0,00
(1.772 + .024/–.000)
92,00 + 0,81/–0,00
(3.622 + .032/–.000)
PANEL TH CKNESS
1,5
R(.06)
4 PLCS
6,4 (.25) MAX
0,8 (.03) M N
NOTE: Dimensions in Millimeters ( nches)
TB1
TB2
123456
78910 123 11 12
FUSE
EARTH GROUND
GREEN W RE
AC Power
Check for proper Earth grounding in the power
distribution system (single phase).
SW TCH
L NE
NEUTRAL
EARTH (L) L NE
(N) NEUTRAL
pH NPUT