TABLE OF CONTENTS
General Information ............................................................1
Installation .......................................................................2–4
Wiring ..............................................................................5–6
Unit Configuration .........................................................7–23
Troubleshooting ..........................................................24–25
Electrical Specifications ....................................................25
Agency Approvals .............................................................26
Intrinsically Safe Installations............................................26
Dimensional Specifications...............................................27
Replacement Parts............................................................27
DESCRIPTION
The Kotron
II
Series 801 Transmitter is a new generation RF
Capacitance transmitter that offers the user unparalleled
power. The Series 801 can interface with two separate
vessels, essentially making it a mini-multiplexer, while soft-
ware mathematics allows for the
Sum
or
Difference
of the
two signals.
801 –
3
–
4
KOTRON II
SERIES 801 TRANSMITTER
NUMBER OF PROBES/OUTPUT
2
= 1 probe, One 4–20mA (isolated),
RS-232
4
= 2 probes, One 4–20mA (isolated),
RS-232
INPUT POWER
0
= 120 VAC
1
= 240 VAC
2
= 24 VDC
3
= 120 VAC with heater and thermostat
4
= 240 VAC with heater and thermostat
DIGITAL, 16 CHARACTER, LCD DISPLAY
REMOTE MOUNTING CONFIGURATION
1
= NEMA 4X
4
= NEMA 4X with I.S. probe circuit
HOUSING
A
= NEMA 4X Noryl (electronics)
w/stainless steel remote probe housing
N
=NEMA 4X Noryl (electronics)
w/aluminum sand cast remote probe housing
(4) 10 AMP SPDT RELAYS
OPTIONS
0
= None
2
= 31-day Data Logger (Smart Watch)
PRINCIPLE OF OPERATION
The amount of capacitance developed in any application is
determined by the size (surface area) of the probe, the dis-
tance from the probe to its ground reference, and the dielec-
tric constant of the medium being measured.
Considering that the probe's mounting position is fixed, and
the dielectric value of the medium is constant, the amount of
capacitance developed in any vessel becomes dependent
upon the probe's diameter and length.
As a medium rises and falls in the tank, the amount of
capacitance developed between the sensing probe and the
ground reference also rises and falls. The Pulsatel circuit,
mounted on the probe, changes the capacitance signal to a
digital signal which can then be sent to the main electronics
located up to 2500 feet (760 M) away.
Kotron
TM
II
Series 801
RF Capacitance
Transmitter For
Level/Flow/Volume
Instruction Manual and Parts List
MODEL IDENTIFICATION
Each Series 801 capacitance transmitter has a nameplate on
which the model number of the unit is shown. The model
number is coded to identify the options of that specific unit.
