DNB Oilfield Service Ltd.
Box 72070 GLPO 1600 90th Avenue S.W.
Calgary, Alberta
Canada
T2V 5H0
Bus (403)251-1795
Cell (403)651-6888
dnboilfield@telus.net

About

WE ARE AN OILFIELD INSTRUMENTATION AND SERVICE COMPANY OF OVER 25 YEARS PROVIDING ACCURATE AND RELIABLE FLUID LEVEL MONITORS AND CONTROLLERS FOR ANY ENVIRONMENT. OUR DNB TANK LEVEL TRANSMITTER AND SAFE CALIBRATION SYSTEM IS BUILT FOR SOUR SERVICE AND MADE IN CALGARY.

INSTRUMENTATION
INSTALLATION
FIELD SERVICE AND CALIBRATION
TANK GAUGING IN ALL ENVIRONMENTS
SOUR SERVICE, UNDERGROUND, REMOTE SITE
ACCURATE FOR CUSTODY TRANSFER
TANK LEVEL DISPLAY CONTROLLER UNITS
WE SELL REPLACEMENT PARTS
THIRD PARTY CALIBRATION AND SERVICE
REBUILT TRANSMITTER EXCHANGE SERVICE
TURN AROUND MAINTENANCE
LOCAL LEVEL DISPLAY UNITS

ACCURATE. RELIABLE.

DNB Model 8020

Liquid Level 4-20mA OutputTransmitter

DNB level monitoring system
Transmitter assembly is housed in an explosion proof water-resistant enclosure. The Transmitter is coupled to a mechanical gaugehead, consisting of a rotating shaft and drum wound with cable and terminated at a float. The Transmitter measures the float movement with a rotary optical encoder and converts it to a 4-20 mA output signal. Span/zero and liquid levels can be set via the Calibrator. These values are retained in memory indefinitely.

Transmitter Technical Specifications

Output420 mA
Communications1-wire
Operating Voltage18 to 30 VDC
Operating Current110 mA Max
Operating Temperature-45 C to +85 C
Max Overvoltage on Power+32 VDC
Reverse Polarity Protection-32 VDC
Transmission Cable Length500m (Twisted Pair Shielded)
Acccuracy0.125 cm
CSA Certification LR113815Class I, Groups C&D, Class II, Groups E,F & G, Hazardbus Locations

DNB Model 8020

Connector Module

  • Links field wiring from the level Transmitter to the Calibrator
  • Compact DIN rail mounted modular units
  • Mini DIN connection port to Calibrator

Transmitter Technical Specifications

Enclosure Size225mm x 740mm x 790mm
Panel Mounting MethodDIN Rail
Connection to CalibratorMini DIN connection port

DNB Model 8020

Handheld Calibrator

  • Handheld Transmitter Calibrator
  • Used to set span/zero and liquid level
  • 24 VDC Power supplied to Calibrator from Connector Module
  • Displays levels in cm

Technical Specifications

Operating Voltage10 to 30 VDC
Operating Current44mA max
Operating Temperature-10 C to +55C
Max overvoltage on power+32 VDC

Contact

DNB Oilfield Services

Mailing Address —

Box 72070 GLPO 1600

90th Avenue SW

Calgary, AB T2V 5H0

Contact us —

Bus +1 403 251 1795

Cell +1 403 651 6888

E dnboilfield@telus.net