dirty, wet, or corrosive surround ings, yet needs to enter data or view plant conditions from a control com puter or PLC.
text and graphic displays. Criter(CRL1056)industrial work stations will interface with host devices fitted with RS422/485 serial
The station removes the need for
Volumetric flow
computer is field programmable
communications(optionally RS232)
panel mounted push buttons and indicators to be wired remotely from the main computer or PLC, yet pro vides full operator information with
and which can send and receive
ASCII characters. Cancoppas
Circle reply card No. 154
Consultants Directory r
Water Supply & Sewage Disposal • Roads & Bridges Flood Control • Solid Waste Disposal Municipal Drains • Land Use Planning OVR EXPERTISE INCLUDES A SOLID AND EXTENSIVE BACKGROUND IN ALL ASPECTS OF CIVIL. MUNICIPAL AND ENVIRONMENTAL ENGINEERING.
A
Ainley and Associates Limited! CONSULTING ENGINEERS & PLANNERS
VCOLLINGWOOD l?05) 445-3451 BARRIE (705) 726 33/] BELLEVILLE (613) 966 4343 Environmental Auditing and Management Planning Waste Management solutions
ALTECH
to ttie 4 Rs
ENVIRONMENTAL CONSULTING LTD.
Wastewater Treatment
design engineering
Environmental and occupational
Air, soil, waste and water
health and safety specialists
analytics, studies and troublestiooting
Serving industry in Canada
225Sheppard Ave, W., Willowdale, Ontario M2N 1N2
Operating on the bubbler principle, the Sigma 8100 Volumetric Flow Computer totalizes, records and dis
plays flow in an open, partially filled channel.
The 8100 has the capability for field programming discharge coeffi cients representing the primary measuring device or circular pipe where the measurement is to be
taken. Readouts in MGD, CFS or cubic meters/minute are possible. The 8100 may also be utilized to monitor and record liquid level only. An 18 Amp-hr. battery allows five day unattended operation. Can-Am Instruments Ltd.
Circle reply card no. 155
(416) 226-0148
Monitor measures O2
R.V. Anderson Associates Limited consulting engineers and architect Water Pollution Control Environmental Planning Land Development Water Supply Transportation Tunnels and Shafts Water Resources Municipal Services Architecture TORONTO (416)497-8600
WELUAND (416)735-3659
AquaticSciences Inc.
The new Detektor Oxygen Defi ciency Monitor from Rosemount Analytical continuously measures oxygen in the 0-25% range,reporting the level on a bright, direct reading digital display.
SUDBURY (705)671-9903 (Dennis Consultants)
Environmental Scientists Commercial Divers
UNDERWATER AND ENVIRONMENTAL SERVICES
• spill site investigations and cleanups
• underwater video inspections
In the 0 - 25% range
• impact assessments
• water quality monitoring
P.O. Box 2205, Station B, St. Catharines, Ontario L2IV1 6P6
(416)641-0941 Placed wherever oxygen defi ciency poses a threat to the safety of workers, a flashing display and
ASSOCIATED ENVIRONMENTAL
ENGINEERING
ENGINEERING
SERVICES
audible alarm will alert workers to danger.
Designed for simple operation, the Detektor Model 2201,features an
Water
•
Wastewater
self-diagnostics, and a user access
STE. 525. 21 FOUR SEASONS PLACE
ETOBICOKE, ONTARIO M9B 6J8
TELEPHONE.(416) 622-9502. FAX: (416) 622-6249
easy to use keypad, one-man single pushbutton calibration, test key,
ASSOCIATED
.ENGINEERING
Environmental Science & Engineering, October 1989
code. Rosemount Instruments Ltd.
Circle reply card No. 156 39