Liquid Level / Mini-Tek
PART NUMBERS : FEATURES : DETECTION METHOD : HOW THEY WORK : SENSOR
SPECIFICATION : INSTALLATION INFO
HOW TO DETERMINE YOUR PART NUMBER
Position Sensor
POSITION SENSOR
FEATURES top
Features: Specifications:
1. Solid State Operation: No moving parts Operating -40°C to 125°C
Temperature
2. Surface mount electronics integrated Storage -55°C to 150°C
with sensor package Temperature
3. Electrical connector mates with a Thermal Shock 100 Cycles, -40° to 125°
standard Packared Electric Metri-Pack
#12065298 and provides a weather tight
connection when installed. Connector Vibration 20G Constant Acceleration
material is Valox 420.
4. Housing material is Bichromate 20 to 2000 HZ
dipped Brass
5. Probe coating for the Conductive Salt Fog 96 Hours, per ASTM B117
Models is PFA per ASTM D2902
type III. Provides excellent chemical Case Isolation 100 MegOhms
resistance, electrical isolation, and
dielectric stability.
6. Probe coating for Non-Conductive Max Torque 15 Ft. Lbs.
Models is a Hybrid Epoxy. Provides
excellent chemical resistance and Probe Seal 100 PSI
electrical isolation. Pressure
DETECTION METHOD top
HOW THEY WORK top
Mini-Tek Coolant Switches:
The Red-E Parts Mini-Tek Coolant Switches operate on a capacitance sensing principle. The
probe portion of the unit, extending into the coolant, forms one plate of the capacitor, while
the coolant forms the other plate. With coolant present, the capacitance is greater than when
the coolant is absent. This difference in capacitance is used by the integral electronics to
provide a solid-state ON-OFF Signal.
(Fluid requirements - conductive fluids such as ethelyne glycol and water. Several extended
life coolants have beed tested. The customer should verify compatibility with the fluid
intended for use in his application.)
Mini-Tek Oil Level Switches:
The Red-E Parts Mini-Tek Oil Level Switches operate similarly in any liquid hydrocarbon.
On these versions, the probe portion of the unit, extending into the oil, forms one plate of
the capacitor, while the coil forms the other plate. The slick, non-fouling coating on the
probe and the oil itself work together to form the dielectric between the capacitor plates.
With oil present, the capacitance is greater than when the oil is absent. Again, the difference
in capacitance is used by the integral electronic to provide a solid-state ON-OFF signal. The
open spaces in the coil encourage rapid drainage.
(Fluid requirements - non-conductive fluids such as diesel fuel and engine oils with a
dielectric constant of 1.8 to 2.7. Several oils have beed tested. The customer should verify
compatibility with the fluid intended for use in his application.)
SENSOR SPECIFICATIONS top
Red-E Parts Level Switch Series Specifications
Coolant Model Coolant Model Coolant Oil Model Oil Model
905 908 Model 824 828
913
Red-E 086714A0001 086714A0002 86715, 86431 series 085927D0001
Parts Part 86716 &
No. 86717 series
Application Low current signal Low current signal Heavy duty Heavy duty Low current signal
applications such as applications such as applications applications applications such as
electronic control electronic control for driving for driving electronic modules 7-30
modules using 5.0 VDC modules using 7-32 VDC up to 1 Amp up to 1 Amp VDC
loads such loads such
as as
indicators, indicators,
relays, and relays, and
solenoids. solenoids.
Supply 5.0+/-.25 volts 7 to 32 volts 9.0 to 32 9.0 to 32 5.0+/-.25 volts
Voltage volts volts
Supply 10mA 10mA 10mA 10mA 10mA
Current
Output(s) Two complementary Two complementary One open One open Two complementary
(Type) CMOS outputs; L and CMOS outputs; L and collector collector CMOS outputs; L and
NL each capable of NL each capable of output with output with NL each capable of
sourcing or sinking sourcing or sinking option of option of sourcing or sinking
10mA max. 10mA max. sourcing or sourcing or 10mA max.
sinking up sinking up
to 1 Amp to to 1 Amp to
load at load at
25ºC, .5 25ºC, 0.5
Amp at Amp at
125ºC in 125ºC in
alarm mode alarm mode
Outputs: Outputs: Outputs: Outputs: Outputs:
Output L (liquid) NL (no L (liquid) NL (no NA NA L (liquid) NL (no
Voltage liquid) liquid) liquid)
Levels
Condition 0.5 V max 4.0 V max 0.5 V max 5.00 +/- 2.0 V max. 2.0 V max. 0.5 V max 5.00 +/-
1* .25V drop across drop across .25V
switch switch
Condition 4.0 V min 0.5 V max 5.00 +/- 0.5 V max 1 ma max 1 ma max 5.00 +/- 0.5 V max
2** .25V leakage leakage .25V
current current
Response 2 sec. max. typical 2 sec. max. typical 2 sec.max. 2 sec.max. 2 sec. typical (limited by
Time (limited by viscosity) (limited by viscosity) or optional or optional viscosity)
10 +/- 2sec. 10 +/- 2sec.
Delay. Delay.
(limited by (limited by
viscosity) viscosity)
Fastener 1/4 - 18 NPTF 1/4 - 18 NPTF 1/4 - 18 3/8 - 18 3/8 - 18 NPTF
Type NPTF NPTF
Electrical 4 Pin termination 4 Pin termination 4 Pin 4 Pin 4 Pin termination
Mating designed to mate with designed to mate with termination termination designed to mate with
Connector Packard Electric Packard Electric designed to designed to Packard Electric
MetriPack connector MetriPack connector mate with mate with MetriPack connector
assembly 12048079 or assembly 12048079 or Packard Packard assembly 12048079 or
12065298 12065298 Electric Electric 12065298
MetriPack MetriPack
connector connector
assembly assembly
12048079 or 12048079 or
12065298 12065298
*Condition 1 represents no liquid present on the probe **Condition 2 represents probe sensor submerged in liquid.
sensor. For models 913 and 824, output is stated for mormal
For models 913 and 824, output is stated for alarm (no alarm) mode.
mode.
High or low level alarm can be selected.
INSTALLATION INFO top
Directions for Retro-Fit Installation :
1. Check to see that kit has following parts:
1. Packard connector wiring assembly with
red,
blue and black wire leads, part #86420-
A2.
2. Fork terminal part #39600-A1 (Panduit
P/N
PV18-14FB-3K).
3. Male disconnects part #39601-A1
(Panduit P/N DV18-250MB-3K).
2. Identify wiring configuration of your
application to
be connected to Mini-Tek 913/824 Level
Sensor
according to the inset drawings:inset A (4
wires), (click for larger view)
inset B (standard headlight style connector),
or
inset C (3 wires).
Retro-fit Kit
3. Make all connections of kit wiring harness Order kit separately. Retrofit Kit
86420 Model
-A2 as shown to your application wiring by MTK-2 (for 913-824 only) includes: 1
securely fastening using software provided; Packard connector wiring assembly
Red with
to V+, blue to signal, and black to ground. red, blue and black wire leads, 1 fork
Important: Do Not connect Mini-Tek terminal and 3 male disconnects.
813/824
Level Sensor into wiring harness 86420-A2
until all
harness wiring has been correctly installed.
The
black ground lead for wiring harness 86420
-A2
may be cut and stripped to appropriate
length
for your application. If your system does
not have
a ground lead (inset B and C), a fork
terminal has
been provided to connect on a 1/4" stud
or bolt for chassis grounding.
4. Since Mini-Tek Model 913/824 does not
provide
test function, the test lead terminal from
your
system wiring should be removed or
insulated
by covering exposed end.
5. If vibration is a factor in your system,
proper wiring
harness restraints are commended to avoid
insulation wear or loosening of connections.
6. Once all connections of kit wiring harness
have
been made to system wiring and checked,
install
Mini-Tek 913/824 Level Sensor noting
correct
orientation of the integral Mini-Tek
connector
with mating Packard connector wiring
harness
86420-A2.
Notes:
Red-E Parts recommends the use of moistureproof electrical
seal at interface of Mini-Tek Coolant and Oil Level Switch
units to prevent potential corrosion of the electrical
connections. Corrosion could cause faulty operation of the
cooling or oil sensing unit. This retrofit kit is made
available by Red-E Parts only as a means to interface
models 913/824 which have integral Packard style
moistureproof connections as replacement for models
613/624 which interface with a standard "headlight" style
connector, 4 wires or 3 wires (all non-moistureproof). Note
that models 913/824 are not for computer or low current
applications. Red-E Parts does not assume responsibility for
damages caused by misapplication from incorrect wiring or
faulty wire connections.
HOW TO DETERMINE YOUR PART NUMBER top
Key Model Number
Model No. Description
905, 908, 913 Coolant Level Detector
828, 824-N Oil Level Detector
Table 3 - Time Delay/Test Function
Code Description
0000-T No time delay w/test function
TD10-T 10 seconds w/test function
Accessories
Part No. Description
86416-A1 Mating Connection with 6" wire leads
