Comark 3392-PG Installation Manual

C9550 EXTERNAL

PRESSURE METER

OPERATING MANUAL

1

CONTENTS

GENERAL INFORMATION ...................... 3

CALIBRATION, CERTIFICATION

AND SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 Transducer Input . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Transducer Operator Manual .................6

1.3 Transducer Range Data Sheet ...............6

1.4 Ranges, scales and resolutions ...............6

2 KEY FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 ON/OFF Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 ZERO Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 SCALE Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.4 HOLD Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5 FILTER Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.6 RECORD Key . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.7 AUTO Switch Off . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 PRESSURE SOURCE CONNECTION . . . . . . . 9

4 OTHER FUNCTIONS .................... 10

4.1 Battery Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Over 9999 Reading Indication ...............10

4.3 Absolute or Gauge Measurement . . . . . . . . . . . . 10

4.4 Error Messages ..........................10

4.5 Battery Replacement ......................11

5 UNITS OF MEASUREMENT .............. 12

5.1 The C9550 Pressure Scaling System . . . . . . . . . 12

5.2 Calibration Scale . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 3. Scale Conversion Factors ...............13

5.3 Table of Full Scale Pressures

and Resolutions . . . . . . . . . . . . . . . . . . . . . . . . . 14

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6 OPTIONAL EQUIPMENT . . . . . . . . . . . . . . . . 15

7. WIRING OF INTERFACE CABLE .......... 16

8. INSTRUMENT SPECIFICATION ........... 17

Declaration of Conformity . . . . . . . . . . . . . . . . . . 18

FIGURE 1 View of the measurement system . . . . . . . . 19

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GENERAL INFORMATION

TRANSDUCERS SHOULD NOT BE DISCONNECTED FROM THE

WARNING

PRESSURE SOURCE WHILST CONTAINING GASES WHICH ARE
DANGEROUS AND/OR UNDER PRESSURE.

DO NOT APPLY PRESSURES BEYOND THE OVER RANGE MAXI­MUM FOR THE TRANSDUCER OR DAMAGE WILL OCCUR.

REFER TO SECTION 3 - CONNECTION TO PRESSURE SOURCES
BEFORE OPERATING THE INSTRUMENT.

TO AVOID ELECTRIC SHOCK DO NOT ALLOW ANY TRANSDUCER
OR CABLE TO COME INTO CONTACT WITH LIVE ELECTRICAL
POWER CONDUCTORS WITH VOLTAGES IN EXCESS OF 30V AC
RMS OR 60V DC.

CAUTION
Pressure Transducers
This precision instrument has been designed for use with the
extensive range of Comark pressure transducers. The use of
other transducers may impair the performance and accuracy of the
instrument. Full details of Comark transducers may be obtained
from Comark Customer Support department or your local distribu­tor.

Repeated sharp exing can break transducer connection cables.

To prolong lead life, avoid sharp bends or kinks in the leads, espe­cially near the connectors.

This instrument is manufactured in
accordance with the company’s ISO 9001 Quality
Approved System.

CERTIFICATE No. FM29700

This instrument complies with the Electromagnetic
Compatibility Directive EN61326-1:2006.

Declarations of Conformity available. Contact
Comark Customer Support or your local Distributor.

In line with its policy of continuous development, Comark Limited reserves the

right to alter the instrument specication without prior notice. Further information

is available from Comark Limited or your distributor.

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CALIBRATION, CERTIFICATION AND SERVICE

Certication

Comark can provide certicates of calibration for its whole product

range, to suit ISO 9000 and other quality assurance procedures, food
hygiene regulations, HACCPs and environmental regulations. Comark

certicates are produced by independent quality controlled processes

which compare product performance against agreed National Stand­ards. For peace of mind and best practice Comark recommend annual

certication/recalibration.

Two levels of certication are available for infra-red temperature and
non temperature instruments, excluding humidity:- UKAS certicates via
an external accredited laboratory and NPL traceable certicates from

the Comark calibration laboratory.

Three levels of certication are available for contact temperature and

humidity products and these are detailed here:

a) UKAS Temperature Certication

The Comark UKAS (United Kingdom Accreditation Service)

accredited temperature calibration laboratory is one of the n­est in the UK. Comark UKAS certicates can offer the lowest

uncertainty of 0.01°C and provide independent proof of correct
calibration using equipment and procedures audited by UKAS
inspectors. The equipment used is fully traceable to the Na­tional Physical Laboratory.

b) UKAS Humidity Certication

In addition to the Comark temperature laboratory, the humidity

laboratory continues the tradition of high accuracy certication

and a wide range (25% to 90%RH) with uncertainties of 2.8% of
reading. This range also includes Dew point measurements.

c) NPL Traceable Certication

Comark NPL certicates are traceable to the National Physical

Laboratory and can offer uncertainty as low as 0.3°C.

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Conformance

Certicates of conformance can be supplied for new, serviced and
recalibrated instruments. These conrm that instruments are within their
original manufactured specication.

Service/Repairs

Regular servicing and any required repairs, under warranty or after, are
available from the Comark Service Department.

For more information on all Comark certication, calibration and service

facilities please call Comark Customer Support or contact your local
distributor.

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1 INTRODUCTION

1.1 Transducer Input

The C9550 external pressure meter accepts all Comark
pressure transducers model 3392, 3393, 3397 or 3398.
Connection is made by means of the 8-pin socket and
the 1.5 metre interface cable. An inbuilt serial interface
allows the C9550 to communicate with the transducer
and provide correct display of the pressure value in any
one of the pressure units selected. Suitable pressure
transducers are:

Model Pressure range, bar Diaphragm Type

3392/PG Series 0.1 to 4000 Internal Gauge
3393/PA Series 0.25 to 16 Internal Absolute
3397/PGF Series 0.1 to 600 Front Flush Gauge
3398/PAF Series 0.25 to 16 Front Flush Absolute

Table 1. Transducer Model References

1.2 Transducer Operator Manual

The separate Transducer Operator Manual provides
details of the installation, troubleshooting and calibra­tion of transducers.

1.3 Transducer Range Data Sheet

Pressure ranges extend from 0.1 to 4000 bar. The
separate Transducer Range Data sheet, Ref: C089,
lists all pressure ranges available in each of Gauge /
Absolute, Internal Diaphragm / Front Flush Diaphragm,

0.5% / 0.25% accuracy types.

1.4 Ranges, scales and resolutions

A tabular listing of the scales and resolutions of Comark
stocked ranges is provided in section 5.3. The com­plete listing for all 24 ranges is available separately as
Engineering Note 18, and is available from the Cus­tomer Service Department.

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