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Transmitter specifications, Parameter specifications level output, Transmitter loop – Kenco Engineering KMD Transmitter User Manual

Page 5: Calibration, Environmental, Field installation, Display, Hart® communications

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5. TRANSMITTER SPECIFICATIONS

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Parameter

Specifications

Level Output

Measured Variable

Liquid Level (as determined by location of magnetic float)

Full Range

18” to 300”

Non-Linearity Full Span

0.020 F.S. or 1/32”, whichever is greater

Repeatability

0.01% F.S. or 1/32”, whichever is greater

Sensor Operating Temp.

- 40°F to 300°F

Transmitter Loop

Input Voltage Range

10.5 to 36.1 VDC

Reverse Polarity Protection

Series Diodes

Safety Approval

CSA Certified Explosion Proof C1.I, Grps. B, C, D C1.II Grps E, F, G
Division 1, NEMA 4X
CSA Certified Intrinsically Safe (when installed with I.S. Barriers)
C1. I, Grps A, B, C, D; C1. II, Grps, E, F, G. Division 1, NEMA 4X

Calibration

Zero Adjust Range

Anywhere within the active length

Span Adjust Range

Full scale more than or equal to 0.5” from zero

Environmental

Electronics Operating Temp.

- 30°F to 160°F

Humidity

0 to 100% Relative Humidity

Materials/Outer Pipe

316 Stainless Steel

Field Installation

Mounting

3/4” NPT fitting or flange mounting

Wiring

2 wire connection, shielded cable or twisted pair to screw terminals
through a 3/4” NPT conduit opening

Display

Measured Variables

Liquid Level

Update Rate:

3 seconds

Size:

0.5”

Number of digits:

16

Measurement:

% of span, a 4-20 mA output or any unit of measure

HART® Communications

Method of Communication

Frequency Shift Keying (FSK) conforms with Bell 202 Modem
Standards with respect to baud rate and digital “1” and “0” frequencies

Baud Rate

1200 bps

Digital “0” Frequency

2200 Hz.

Digital “1” Frequency

1200 Hz.

Data Byte Structure

1 Start Bit, 8 Data Bits, 1 Odd Parity Bit, 1 Stop Bit

Digital Process Structure Rate

Poll//Response Model 2.0 per second