OUTPUT VALUES
Output Voltagec (Vout): lout = 100mA
Output High Vout = Vs - 1.5V max
Output Low Vout = 0V + 0.5V max
PWM
Duty cycle in air 25% ± 10%
Duty cycle in liquid 75% ± 10%
Frequency 2kHz ± 10%
Other sensor options available on request, email:
technical@sstsensing.com
Need help? Ask the expert
Tel: + 44 (0)1236 459 020
and ask for “Technical”
BENEFITS
•Low power
•Low cost
•Compact design
TECHNICAL SPECIFICATIONS
Supply voltage (Vs) 4.5VDC to 15.4VDC
or 4.5VDC to 5.5VDC (PWM output)
Supply current (ls) 2.5mA max. (Vs = 15.4VDC)
Output sink and source
current (lout) 100mA
Operating temperatures Standard: -25°C to +80°C
Extended: -40°C to +125°C
Storage temperatures Standard: -30°C to +85°C
Extended: -40°C to +125°C
Housing materiala, b Polysulfone or Trogamid®
Sensor termination 24AWG, 250mm PTFE
wires, 8mm tinned
Housing/
Mounting
Output Type / Logic Supply
Voltage
Output
Current
Temp
FEATURES
•Liquid level switches that can detect almost any liquid type;
oil or water based
•Choice of material; Polysulfone (standard) or Trogamid®
•Choice of threads
DATA SHEET
Liquid Level Switches
Optomax Digital Series
a) Above +85°C, Trogamid is suitable for use in water based liquids. Oil based liquids can cause deformation of the sensing
tip and must be tested for compatibility.
b) Before use check that the fluid in which you wish to use these devices is compatible either with Polysulfone or
Trogamid®.
c) Voltages applicable to output value stated.
NOTES
d) Types 1, 2 and 3 can be sealed with washers and locknuts.
e) Type 6 should be sealed with Parker 3-905 type o-ring.
f) Type 7 should be sealed with PTFE tape.
g) When correctly sealed.
NOTES
OUTLINE DRAWING
All dimensions shown in mm. Tolerances = ±1mm.
HOUSING SPECIFICATIONS
ELECTRICAL INTERFACE
Wire Designation
Red Vs
Green Output
Blue 0V
Type 1
Type 2
Type 3
Type 5
Housing Series
Type 5 Type 6 Type 7
Thread M10x1 1/2”-20 UNFe 1/4” NPTf
Pressureg 20 bar / 209
psi max. 7 bar / 101 psi maximum
Tightening
Torque 1.5 Nm / 13.26 in-lbs maximum
Housing Series
Type 1 Type 2 Type 3
Thread M12x1-8gd
Pressureg 7 bar / 101 psi maximum
Tightening
Torque 1.5 Nm / 13.26 in-lbs maximum
Type 7
Type 6
CIRCUIT DIAGRAMS
In order to suit any application, these sensors have been designed with various output circuit configurations.
CAUTION: Take care when connecting loads.
The minimum load impedance should not exceed Vs/max output current.
Note: Shorting the output to Vs or 0V will result in irreparable damage to the sensor.
ORDER INFORMATION
Generate your specific part number using the convention shown opposite. Use only those letters and numbers that
correspond to the sensor and output options you require — omit those you do not.
Sensor mounted from inside vessel Sensor mounted from outside vessel
Notes:
• Type 3 and Type 5 sensors are mounted internally.
• Types 1, 2, 6 & 7 sensors are mounted externally.
• SH suffix applicable to Types 1, 2, 6 & 7 sensors only; omit from Type 3 and Type 5 sensor part numbers.
Please contact SST Sensing for details; email: technical@sstsensing.com
Housing
Material
Housing
Type
Operating
Temp.
Output
Logic
C
Polysulfone
1
Type 1
M12x1-8g
0
-25 °C
to +80°C
Blank
Output
High in air
T
Trogamid®
2
Type 2
M12x1-8g
1
-40 °C
to +125°C
L
Output
Low in air
6
Type 6
1/2”-20 UNF
P
PWM output
7
Type 7
1/4” NPT
L L X X X 0 D 3 X S H
L L X X X 0 D 3 X
Housing
Material
Housing
Type
Operating
Temp.
Output
Logic
C
Polysulfone
3
Type 3
M12x1-8g
0
-25 °C
to +80°C
Blank
Output
High in air
T
Trogamid®
5
Type 5
M10x1
1
-40 °C
to +125°C
L
Output
Low in air
P
PWM output
General Note: SST Sensing Ltd. reserves the right to make changes to product specifications without notice or liability.
All information is subject to SST Sensing Ltd.'s own data and considered accurate at time of going to print.
DS-0032 REV 15 © 2017 SST SENSING LTD.
5 HAGMILL C R ESC E N T , SHAW HEAD INDUSTRIAL EST AT E , C O A T BRIDG E , U K M L 5 4 NS
www. s s tsens i ng.co m | e: s a l e s @ sst s e n s ing.co m | t: + 4 4 (0) 1 2 3 6 459020 | f : + 4 4 (0)1 2 3 6 4 5 9 02 6
CAUTION
Do not exceed maximum ratings and ensure sensor(s) are operated in
accordance with their requirements.
Carefully follow all wiring instructions. Incorrect wiring can cause
permanent damage to the device.
SST Sensing Ltd recommend using alcohol based cleaning agents.
Do NOT use chlorinated solvents such as trichloroethane as these are
likely to attack the sensor material.
Failure to comply with these instructions may result in product
damage.
INFORMATION
As customer applications are outside of SST Sensing Ltd.’s control, the
information provided is given without legal responsibility. Customers
should test under their own conditions to ensure that the equipment is
suitable for their intended application. Before use, check that the fluid in
which you wish to use these devices is compatible with Polysulfone or
Trogamid®.
For technical assistance or advice, please email:
technical@sstsensing.com
