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 Process calibrators must be significantly more accurate than the instruments they calibrate. The desire for increased quality and better process control fuels the drive toward improved process instrument accuracy.
Today, a test uncertainty ratio of 4:1 is commonly accepted. As a result, greater instrument accuracy creates a need for higher accuracy and resolution in process calibrators.
As process instrumentation shifts from analog to digital technology, instruments are delivering multiple-parameter capability, digital communication, better time and temperature stability, and lower failure rates. For the instrument shop, these factors mean longer intervals between calibrations and a resultant reduction in maintenance expense.
While the process industries have always been sensitive to operational safety, an appreciation is developing that a well-calibrated plant is a safer one. In addition to assuring that instruments are performing to specifications, a sound maintenance program often detects and corrects noninstrument problems, such as orientation effects, obstructed pressure lines, incorrect thermocouple types, and installation errors.
The desire to limit process downtime, cost of instrument removal and installation, and expense of spare equipment drives the shift from "in-shop" to "in-field" maintenance. This shift has been made possible by the emergence of highly accurate, field-tolerant process calibrators that can deliver near-laboratory accuracy in field environments.
This section will lead you to manufacturers and representatives who provide Process, Temperature, Humidity, Pressure, Gas, Voltage, Current, Portable, Multi-Function Calibrators.
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A
ACCESS CONTROL SALES
161 LAKESHORE ROAD EAST
MISSISSAUGA, ONTARIO L5G4T9
TEL: 905 274-2555
FAX: 905 274-5552
TOLL FREE: 1-800-567-1041
ACROLAB LTD
A-KAST MEASUREMENTS & CONTROL LTD
ALPHA CONTROLS AND INSTRUMENTATION
361 STEELCASE RD UNITS 5 &6
MARKHAM ON L3R 3V8
TEL: 905 477 2133
FAX: 905 477 4219
TOLL FREE: 800 567 8686
ANDERSON CONTROLS/ITM INSTRUMENTS
ARMSTRONG MONITORING CORPORATION
B
BARTON INSTRUMENT SYSTEMS LTD
BERJA METER &CONTROLS LTD
BRIAN CONTROLS - PEACOCK INSTRUMENTATION
C
C D NOVA LTD
CAMERON INSTRUMENTS INC
CANCOPPAS LIMITED
CHEVRIER INSTRUMENTS INC
CONVAL EQUIPMENT LTD>
D
DRESSER CANADA INC
DUNCAN INSTRUMENTS CANADA LTD
DURHAM INSTRUMENTS
E
E &E PROCESS INSTRUMENTATION
40 NORTH RIVERMEDE ROAD UNIT 4
CONCORD, ONTARIO L4K 2H3
TEL: 905 669-4857
FAX: 905 669-2158
ESKO INDUSTRIES LTD
F
FLUKE ELECTRONICS CANADA INC
G
GENEQ
H
HEATERS CONTROLS AND SENSORS
13-60 MEG DRIVE
LONDON, ONTARION N6E 3T6
TEL: 519 686-6095
FAX: 519 686-8159
TOLL FREE: 800 279-9912
HOSKIN SCIENTIFIC LIMITED
HYDROGENICS CORP
I
INDUSTRIAL ELECTRONICS SOURCING CORPORATION
Industrial Technical Services
8-2395 CAWTHRA ROAD
MISSISSAUGA, ONTARIO L5A 2W8
TEL: 905 275-2717
FAX: 905 275-2724
INSTRONICS INC
INTERTECHNOLOGY INC
1 SCARSDALE RD
DON MILLS ON M3B 2R2
TEL: 416 445 5500
FAX: 416 445 1170
TOLL FREE: 800 465 1600
ITM INSTRUMENTS INC
J
JEB CONTROLS INC
K
KB ELECTRONICS
L
LAKESIDE PROCESS CONTROLS LTD
LINE PROCESS CONTROLS INC
O
OMEGA ENGINEERING
P
PRIBUSIN INC
PROCESS INSTRUMENTATION AND COMPONENTS INC.
PROCESS SERVICE INSTRUMENTATION
PROJEAN INC
PROVINCIAL CONTROLS
PROVIRO INSTRUMENTATION INC
R
RCC ELECTRONICS
RHC AND ASSOCIATES/OMNITRONIX
RNG CONTROLS
ROSEMOUNT INSTRUMENTS LTD
S
SIVA & ASSOCIATES
SRP CONTROL SYSTEMS LTD
T
TECHNEL ENGINEERING INC
THERMO ELECTRIC (CANADA) LIMITED
THERMO-KINETICS CO LTD
TRILLIUM MEASUREMENT AND CONTROL
TUBEFIT INC
W
WIKA INSTRUMENTS CANADA LTD
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