Fluid Level / Temperature Indicators
E4 www.stauff.com
Level Gauge § Type SNA
Characteristics
Visual uid level indication in hydraulic reservoirs with
maximum tank pressures not exceeding 2 bar / 29 PSI
Nominal Sizes and Designs
§ 6 nominal sizes from 76 mm / 2.99 in to 305 mm / 12.00 in
§ Display either undivided (SNA 076 ... 176) or subdivided
by strut(s) into 2 (SNA 254) or 3 sections (SNA 305)
Please see page E5 for alternative nominal sizes and designs.
Media Compatibility
§ Suitable for use with Mineral and Petroleum based
hydraulic uids (HL and HLP)
Materials
§ Housing made of Steel St 12, black epoxy-coated
§ Sight tube and plugs made of Polyamide (PA)
§ Sealings made of NBR (Buna-N®)
§ Scale plate made of PVC
Special sight tube materials for improved UV or chemical
resistance and use with special media (such as bio-degradable
uids, diesel oils, gasolines, etc.) as well as special sealing
materials, e.g. FPM (Viton®), and scale plate materials,
e.g. Aluminium, are available on request.
Please see page E5 for alternative housing materials.
Technical Data
§ IP 65 protection rating: Dust tight and protected
against water jets (IP 67 on request)
§ Operating temperature range:
-30 °C ... +80 °C / -22 °F ... +176 °F
§ Recommended tightening torque: 8 N·m / 5.9 ft·lb
Accessories / Options
§ Red / blue capillary tube thermometers with a dual
Celsius / Fahrenheit scale and a temperature display
range of up to +80 °C / +180 °F
§ Dial thermometers with probe and a Celsius or a dual Celsius /
Fahrenheit scale with a temperature display range of up to
+100 °C / +200 °F
§ Thermo Switches
§ Temperature Sensors
Please see pages E8 and E9 for details.
100
80
6040
20
0
B
L3
L1
L2
A
D
C
E F
Dial Thermometer with
Probe T1/T2 (optional)
20
40
60
80
100
120
140
160
180
F
-10
0
10
20
30
40
50
60
70
80
C
Design of Scale Plates
S X S - T
Thermometer Options
N
Dimensions
Nominal Size Dimensions (
mm
/
in
)
A B C
(Max.) D E F (with T1) F (with T2) L1 L2 L3
SNA 076
45 34,5 8 27 43,5 165,5 265,5 108 76 31
1.77 1.36 .32 1.06 1.71 6.52 10.45 4.25 2.99 1.22
SNA 127
45 34,5 8 27 43,5 165,5 265,5 159 127 76
1.77 1.36 .32 1.06 1.71 6.52 10.45 6.26 5.00 2.99
SNA 150
45 34,5 8 27 43,5 165,5 265,5 182 150 99
1.77 1.36 .32 1.06 1.71 6.52 10.45 7.17 5.91 3.90
SNA 176
45 34,5 8 27 43,5 165,5 265,5 208 176 124
1.77 1.36 .32 1.06 1.71 6.52 10.45 8.19 6.93 4.88
SNA 254
45 34,5 8 27 43,5 165,5 265,5 285 254 192
1.77 1.36 .32 1.06 1.71 6.52 10.45 11.22 10.00 7.56
SNA 305
45 34,5 8 27 43,5 165,5 265,5 336 305 244
1.77 1.36 .32 1.06 1.71 6.52 10.45 13.23 12.00 9.61
Capillary Tube Thermometer
with a dual Celsius / Fahrenheit
scale up to +80 °C / +180 °F
SNA 127 B - S - O - 12 - O - 60
a Type
Level Gauge with visual uid level indication SNA
b Nominal Size
SNA 076 (nominal size of 76 mm / 2.99 in) 076
SNA 127 (nominal size of 127 mm / 5.00 in) 127
SNA 150 (nominal size of 150 mm / 5.91 in) 150
SNA 176 (nominal size of 176 mm / 6.93 in) 176
SNA 254 (nominal size of 254 mm / 10.00 in) 254
SNA 305 (nominal size of 305 mm / 12.00 in) 305
Please see page E5 for alternative nominal sizes.
c Sealing Material
NBR (Buna-N®) (standard option) B
FPM (Viton®) V
d Design of Scale Plate
With STAUFF logo (standard option) S
Neutral design without any logo N
Custom-designed scale plate (please specify) X
e Thermometer Option
Supplied without thermometer O
Red Capillary Tube thermometer on scale plate T
Blue Capillary Tube thermometer on scale plate TB
Dial thermometer with probe (200 mm / 7.87 in)
and a Celsius scale up to 100 °C
T1C
Dial thermometer with probe (300 mm / 11.81 in)
and a Celsius scale up to 100 °C
T2C
Dial thermometer with probe (200 mm / 7.87 in)
and a dual scale up to 100 °C / 200 °F
T1CF
Dial thermometer with probe (300 mm / 11.81 in)
and a dual scale up to 100 °C / 200 °F
T2CF
f Banjo Bolt Size
Metric ISO thread M12 (standard option) 12
Metric ISO thread M10 10
Unied coarse thread 1/2–13 UNC U1
Unied ne thread 1/2–20 UNF U2
Unied extra-ne thread 1/2–28 UNEF U3
g Thermo Switch / Temperature Sensor Option
Supplied without Thermo Switch / Temperature Sensor -
Thermo Switch TS-SNA/SNK; Break contact
(normally closed); Equipped with standard connector
O
Thermo Switch TS-SNA/SNK; Break contact
(normally closed); Equipped with connector M12
OD
Thermo Switch TS-SNA/SNK; Make contact
(normally open); Equipped with standard connector
C
Thermo Switch TS-SNA/SNK; Make contact
(normally open); Equipped with connector M12
CD
Temperature Sensor TS-SNA/SNK-PT100;
Equipped with connector M12
PT100
Thermo Switches / Temperature Sensors only available for
banjo bolt size M12. Please see pages E8 and E9 for details.
h Switching Temperature
Contact switches at +60 °C / +140 °F 60
Contact switches at +70 °C / +158 °F 70
Contact switches at +80 °C / +176 °F 80
Contact switches at +90 °C / +194 °F 90
Only to be indicated when using a Thermo Switch.
Options T1C/CF and T2C/CF are not available for
banjo bolt size M10 and not be used in conjunction with
Thermo Switches or Temperature Sensors.
Please see page E8 for details.
Order Codes
Maximum admissible tolerance for the bolt center spacing (dimension L2) according to DIN ISO 2768-f: ±0,20 mm / .008 in for all nominal sizes.
Dimensional drawings: All dimensions in mm (in).
Dimensions / Technical Data / Order Codes
YOUR LOGO
Clearance Hole:
Ø13 (Ø.51) for M12 / Ø10,5 (Ø.41) for M10 /
Ø13,5 (Ø.53) for UNC, UNF and UNEF
HZB-27-03-2012-EN.indd 4 29.03.2012 10:23:13
Hydraulic
Accessories
E
Fluid Level / Temperature IndicatorsSpecial Options: Characteristics / Inquiry Checklist
www.stauff.com E5
Level Gauge (Special Options) § Type SNA
Visual uid level indication in hydraulic reservoirs with
maximum tank pressures not exceeding 2 bar / 29 PSI;
ideal for custom applications in terms of reservoir
capacities and dimensions
Nominal Sizes
§ Special sizes beyond the normal of 305 mm / 12 in
up to a maximum nominal size of 950 mm / 3 7.4 i n –
even for small and medium quantities
§ High-precision manufacturing within 1 mm
tolerance to customer requirements
Design
§ Robust design thanks to one or more struts that
subdivide the display into 2 or more sections
§ Positioning of the strut(s) based on engineering
considerations and/or according to particular
customer requirements
§ Precise visual indication of the uid level by use
of scale plates (only available for nominal sizes
smaller than 670 mm / 26.4 in) or by use of a
coloured oating element (recommended option
for nominal sizes larger than 670 mm / 26.4 in)
§ Plastic dampening clips to reduce vibration
of the sight tube are used for nominal sizes larger
than 450 mm / 17.7 in
Materials
§ Housing made of Steel, Aluminium or Stainless Steel
§ Sight tube and plugs made of Polyamide (PA)
§ Sealings made of NBR (Buna-N®)
§ Scale plate made of PVC
§ Floating element made of Polyamide (PA)
Special sight tube materials for improved UV or chemical
resistance and use with special media (such as bio-degradable
uids, diesel oils, gasolines, etc.) as well as special sealing
materials, e.g. FPM (Viton®), and scale plate materials,
e.g. Aluminium, are available on request.
Please also ask for our special low-temperature versions,
suitable for extreme temperatures up to -40 °C / -40 °F.
Accessories / Options
§ Capillary tube thermometers with a dual
Celsius / Fahrenheit scale and a temperature display
range of up to +80 °C / +180 °F
§ Dial thermometers with probe and a Celsius or a dual Celsius /
Fahrenheit scale with a temperature display range of up to
+100 °C / +200 °F
§ Thermo switches
§ Temperature sensors
Please see pages E8 and E9 for details.
Characteristics
Inquiry Checklist
Nominal Size
Housing Material
Housing Design
Banjo Bolt Size
Banjo Bolt Material
Sealing Material
Level Indication
Options
Aluminium Steel Stainless Steel
Steel Stainless Steel
Bolt centre distance (in mm)
NBR (Buna-N®) FPM (Viton®) EPDM
M12 M10 1/2–13 UNC
1/2–20 UNF 1/2–28 UNEF
Scale plate made of PVC
Floating element (recommended option for nominal sizes larger than 670 mm / 26.4 in)
Scale plate (only for nominal sizes smaller than 670 mm / 26.4 in)
Alternative sealing materials to be dened separately.
Other types of level indication (magnetic oats, etc.) to be dened separately.
Scale plate made of Aluminium
Regular housing design with positioning of strut(s) based on engineering considerations
Please provide additional details / drawing for custom housing designs.
Without thermometer on scale plate
Capillary tube thermometer with dual Celsius / Fahrenheit scale up to +80 °C / +180 °F
Length of probe: 200 mm / 7.87 in
Dial thermometer with probe
Length of probe: 300 mm / 11.81 in
Celsius scale up to +100 °C
Dual scale up to +100 °C / +200 °F
Thermo Switch TS-SNA/SNK
Break contact; Standard connector
Break contact; Connector M12
Make contact; Standard connector
Make contact; Connector M12
Contact switches at +60 °C / +140 °F
Contact switches at +70 °C / +158 °F
Contact switches at +80 °C / +176 °F
Contact switches at +90 °C / +194 °F
Temperature Sensor TS-SNA/SNK-PT100
In case that you require a special property or custom-designed level gauge, please use this checklist to provide us
with details. If necessary, please also include further details, like the type of uid in use, its temperature and viscosity.
With STAUFF logo
Neutral design without any logo
Custom-design (please specify)
HZB-27-03-2012-EN.indd 5 29.03.2012 10:23:16
Fluid Level / Temperature Indicators
E6 www.stauff.com
Level Gauge § Type SNK
Characteristics
Visual / electrical uid level indication in hydraulic reservoirs
with maximum tank pressures not exceeding 1 bar / 14.5 PSI
Nominal Sizes and Designs
§ 5 nominal sizes from 127 mm / 5.00 in to 305 mm / 12.00 in
§ Display either undivided (SNK 127 ... 176) or subdivided
by strut(s) into 2 (SNK 254) or 3 sections (SNK 305)
Media Compatibility
§ Suitable for use with Mineral and Petroleum based
hydraulic uids (HL and HLP)
Materials
§ Housing made of Aluminium, plastic coated
§ Sight tube and plugs made of Polyamide (PA)
§ Float made of Polyamide (PA)
§ Sealings made of FPM (Viton®)
Special sight tube materials for improved UV or chemical
resistance and use with special media (such as bio-degradable
uids, diesel oils, gasolines, etc.) as well as special sealing
materials are available on request.
Electrical Specications
§ Magnetic oat activates switch when uid level drops below
contact level within 60 mm / 2.36 in of lower banjo bolt
§ Available as a break contact (normally closed) or make
contact (normally open)
§ Either equipped with industrial standard connector (types
C / O) or ve-pin circular connector M12 (types CD / OD)
§ Direction of the electrical contact box (right / left) can be
chosen when assembling the electrical contacts (types C / D)
or is right by default (types CD / OD)
§ Contact ratings: max. 10 W (types C / CD) or 5 W (types O / OD)
§ Switching voltage: max. 50 V AC/DC
§ Switching current: max. 0,25 A
Technical Data
§ IP 65 protection rating: Dust tight and protected
against water jets (IP 67 on request)
§ Operating temperature range:
-30 °C ... +80 °C / -22 °F ... +176 °F
§ Recommended tightening torque: 8 N·m / 5.9 ft·lb
§ Minimum lateral distance to other magnetic
components and cables: 10 mm / .39 in
Accessories / Options
§ Dial thermometers with probe and a Celsius or a dual Celsius /
Fahrenheit scale with a temperature display range of up to
+100 °C / +200 °F
§ Thermo Switches
§ Temperature Sensors
Please see pages E8 and E9 for details.
Dimensions
Nominal Size Dimensions (
mm
/
in
)
A B1 B2 C
(Max.) D E F (with T1) F (with T2) L1 L2 L3
SNK 127
56 34,5 ~50 8 35,1 51,5 157,5 257,5 205 127 ~60
2.20 1.36 ~1.97 .32 1.26 2.03 6.20 10.14 8.07 5.00 ~2.36
SNK 150
56 34,5 ~50 8 35,1 51,5 157,5 257,5 228 150 ~60
2.20 1.36 ~1.97 .32 1.26 2.03 6.20 10.14 8.98 5.91 ~2.36
SNK 176
56 34,5 ~50 8 35,1 51,5 157,5 257,5 254 176 ~60
2.20 1.36 ~1.97 .32 1.26 2.03 6.20 10.14 10.00 6.93 ~2.36
SNK 254
56 34,5 ~50 8 35,1 51,5 157,5 257,5 332 254 ~60
2.20 1.36 ~1.97 .32 1.26 2.03 6.20 10.14 13.07 10.00 ~2.36
SNK 305
56 34,5 ~50 8 35,1 51,5 157,5 257,5 383 305 ~60
2.20 1.36 ~1.97 .32 1.26 2.03 6.20 10.14 15.08 12.00 ~2.36
Connection Details and Electrical Functions
Types C and O: Industrial standard connector (contact gap:
11 mm / .43 in), similar to DIN EN 175301-803-B / ISO 6952
Types CD and OD: Five-pin circular connector M12,
A-coded, according to IEC 61076-2-101
SNK-C
SNK-O
Type C Type O
Contacts close
when uid level
drops below
contact level
Contacts open
when uid level
drops below
contact level
A
B1
L2
L1
D
C
E F
Dial Thermometer with
Probe T1/T2 (optional)
B2
L3
Contact Level
1
3
2
1
3
2
Table shows dimension L1 for the version with industrial standard connector (types C and O) only.
Maximum admissible tolerance for the bolt center spacing (dimension L2) according to DIN ISO 2768-f: ±0,20 mm / .008 in for all nominal sizes.
PG9
Connection 3 not engaged
~50
(~1.97 )
28
(1.10)
33
(1.30)
M12
28
(1.10)
~55
(~2.17)
25
(.98)
Analog
Signal
24 V DC
0 V DC
Connection 1 not available
Connection 2 not engaged
SNK 127 V - C - O - 12 - O - 60
f Banjo Bolt Size
Metric ISO thread M12 (standard option) 12
Metric ISO thread M10 10
Unied coarse thread 1/2–13 UNC U1
Unied ne thread 1/2–20 UNF U2
Unied extra-ne thread 1/2–28 UNEF U3
g Thermo Switch / Temperature Sensor Option
Supplied without Thermo Switch / Temperature Sensor -
Thermo Switch TS-SNA/SNK; Break contact
(normally closed); Equipped with standard connector
O
Thermo Switch TS-SNA/SNK; Break contact
(normally closed); Equipped with connector M12
OD
Thermo Switch TS-SNA/SNK; Make contact
(normally open); Equipped with standard connector
C
Thermo Switch TS-SNA/SNK; Make contact
(normally open); Equipped with connector M12
CD
Temperature Sensor TS-SNA/SNK-PT100;
Equipped with connector M12
PT100
Thermo Switches / Temperature Sensors only available for
banjo bolt size M12. Please see pages E8 and E9 for details.
h Switching Temperature
Contact switches at +60 °C / +140 °F 60
Contact switches at +70 °C / +158 °F 70
Contact switches at +80 °C / +176 °F 80
Contact switches at +90 °C / +194 °F 90
Only to be indicated when using a Thermo Switch.
Options T1C/CF and T2C/CF are not available for
banjo bolt size M10 and not be used in conjunction with
Thermo Switches or Temperature Sensors.
Please see page E8 for details.
Order Codes
a Type
Level Gauge with visual / electrical
uid level indication
SNK
b Nominal Size
SNK 127 (nominal size of 127 mm / 5.00 in) 127
SNK 150 (nominal size of 150 mm / 5.91 in) 150
SNK 176 (nominal size of 176 mm / 6.93 in) 176
SNK 254 (nominal size of 254 mm / 10.00 in) 254
SNK 305 (nominal size of 305 mm / 12.00 in) 305
Consult STAUFF for alternative nominal sizes and designs.
c Sealing Material
FPM (Viton®) V
d Electrical Function
Break contact, opens at contact level
(normally closed); Equipped with standard connector
O
Break contact, opens at contact level
(normally closed); Equipped with connector M12
OD
Make contact, closes at contact level
(normally open); Equipped with standard connector
C
Make contact, closes at contact level
(normally open); Equipped with connector M12
CD
e Thermometer Option
Supplied without thermometer O
Dial thermometer with probe (200 mm / 7.87 in)
and a Celsius scale up to 100 °C
T1C
Dial thermometer with probe (300 mm / 11.81 in)
and a Celsius scale up to 100 °C
T2C
Dial thermometer with probe (200 mm / 7.87 in)
and a dual scale up to 100 °C / 200 °F
T1CF
Dial thermometer with probe (300 mm / 11.81 in)
and a dual scale up to 100 °C / 200 °F
T2CF
Dimensional drawings: All dimensions in mm (in).
Dimensions / Technical Data / Order Codes
Clearance Hole:
Ø13 (Ø.51) for M12 /
Ø10,5 (Ø.41) for M10 /
Ø13,5 (Ø.53) for UNC, UNF, UNEF
HZB-27-03-2012-EN.indd 6 29.03.2012 10:23:22
Hydraulic
Accessories
E
Level Gauge (Compact Design) § Type SNKK
Fluid Level / Temperature Indicators
www.stauff.com E7
Characteristics
Visual / electrical  uid level indication in hydraulic reservoirs
with maximum tank pressures not exceeding 1 bar / 14.5 PSI;
ideal for applications in which space is limited
Nominal Sizes and Designs
§ 5 nominal sizes from 127 mm / 5.00 in to 305 mm / 12.00 in
§ Compact design allows space-saving installation:
Always 40 mm / 1.57 in shorter than Level Gauges
SNK of the comparable nominal size
§ Display either undivided (SNKK 127 ... 176) or subdivided
by strut(s) into 2 (SNKK 254) or 3 sections (SNKK 305)
Media Compatibility
§ Suitable for use with Mineral and Petroleum based
hydraulic  uids (HL and HLP)
Materials
§ Housing made of Aluminium, plastic coated
§ Sight tube and plugs made of Polyamide (PA)
§ Float made of Polyamide (PA)
§ Sealings made of FPM (Viton®)
Special sight tube materials for improved UV or chemical
resistance and use with special media (such as bio-degradable
uids, diesel oils, gasolines, etc.) as well as special sealing
materials are available on request.
Electrical Speci cations
§ Magnetic  oat activates switch when  uid level drops below
contact level within 60 mm / 2.36 in of lower banjo bolt
§ Available as a SPDT (Single Pole Double Throw) contact
§ Equipped with  ve-pin circular connector M12
§ Direction of the electrical contact box is right to top by default
Technical Data
§ IP 67 protection rating: Dust tight and protected against
powerful water jets; even immersion (up to 1 m / 3.28 ft)
in water is possible under de ned conditions of pressure
and time (IP 69K on request)
§ Operating temperature range:
-30 °C ... +80 °C / -22 °F ... +176 °F
§ Recommended tightening torque: 8 N·m / 5.9 ft·lb
§ Minimum lateral distance to other magnetic
components and cables: 10 mm / .39 in
Accessories / Options
§ Dial thermometers with probe and a Celsius or a dual Celsius /
Fahrenheit scale with a temperature display range of up to
+100 °C / +200 °F
§ Thermo Switches
§ Temperature Sensors
Please see pages E8 and E9 for details.
Dimensions
Nominal Size Dimensions (
mm
/
in
)
A B1 B2 C
(Max.) D E F (with T1) F (with T2) L1 L2 L3
SNKK 127
56 34,5 ~55 8 35,1 51,5 157,5 257,5 165 127 ~60
2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 6.50 5.00 ~2.36
SNKK 150
56 34,5 ~50 8 35,1 51,5 157,5 257,5 188 150 ~60
2.20 1.36 ~1.97 .32 1.26 2.03 6.20 10.14 8.98 5.91 ~2.36
SNKK 176
56 34,5 ~55 8 35,1 51,5 157,5 257,5 214 176 ~60
2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 8.43 6.93 ~2.36
SNKK 254
56 34,5 ~55 8 35,1 51,5 157,5 257,5 292 254 ~60
2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 11.50 10.00 ~2.36
SNKK 305
56 34,5 ~55 8 35,1 51,5 157,5 257,5 343 305 ~60
2.20 1.36 ~2.17 .32 1.26 2.03 6.20 10.14 13.50 12.00 ~2.36
SNKK 127 V - DD - O - 12 - O - 60
f Banjo Bolt Size
Metric ISO thread M12 (standard option) 12
Metric ISO thread M10 10
Uni ed coarse thread 1/2–13 UNC U1
Uni ed  ne thread 1/2–20 UNF U2
Uni ed extra- ne thread 1/2–28 UNEF U3
g Thermo Switch / Temperature Sensor Option
Supplied without Thermo Switch / Temperature Sensor -
Break Contact, opens at contact level
(normally closed); Equipped with standard connector
O
Break Contact, opens at contact level
(normally closed); Equipped with connector M12
OD
Make Contact, closes at contact level
(normally open); Equipped with standard connector
C
Make Contact, closes at contact level
(normally open); Equipped with connector M12
CD
Temperature Sensor TS-SNA/SNK-PT100;
Equipped with connector M12
PT100
Thermo Switches / Temperature Sensors only available for
banjo bolt size M12. Please see pages E8 and E9 for details.
h Switching Temperature
Contact switches at +60 °C / +140 °F 60
Contact switches at +70 °C / +158 °F 70
Contact switches at +80 °C / +176 °F 80
Contact switches at +90 °C / +194 °F 90
Only to be indicated when using a Thermo Switch.
Options T1C/CF and T2C/CF are not available for
banjo bolt size M10 and not be used in conjunction with
Thermo Switches or Temperature Sensors.
Please see page E8 for details.
Order Codes
a Type
Level Gauge with visual / electrical
uid level indication (compact design)
SNKK
b Nominal Size
SNKK 127 (nominal size of 127 mm / 5.00 in) 127
SNKK 150 (nominal size of 150 mm / 5.91 in) 150
SNKK 176 (nominal size of 176 mm / 6.93 in) 176
SNKK 254 (nominal size of 254 mm / 10.00 in) 254
SNKK 305 (nominal size of 305 mm / 12.00 in) 305
Consult STAUFF for alternative nominal sizes and designs.
c Sealing Material
FPM (Viton®) V
d Electrical Function
SPDT (Single Pole Double Throw) contacts,
1 contact opens and 1 contact closes at DD
contact level; Equipped with connector M12
e Thermometer Option
Supplied without thermometer O
Dial thermometer with probe (200 mm / 7.87 in)
and a Celsius scale up to 100 °C
T1C
Dial thermometer with probe (300 mm / 11.81 in)
and a Celsius scale up to 100 °C
T2C
Dial thermometer with probe (200 mm / 7.87 in)
and a dual scale up to 100 °C / 200 °F
T1CF
Dial thermometer with probe (300 mm / 11.81 in)
and a dual scale up to 100 °C / 200 °F
T2CF
Connection Details and Electrical Functions
Type DD: Five-pin circular connector M12,
A-coded, according to IEC 61076-2-101
A
B1
L2
L1
D
C
E F
B2
L3
Contact Level
~55
(~2.17)
26
(1.02)
M12
7
(.28)
Maximum admissible tolerance for the bolt center spacing (dimension L2) according to DIN ISO 2768-f: ±0,20 mm / .008 in for all nominal sizes.
Dimensional drawings: All dimensions in mm (in).
Dimensions / Technical Data / Order Codes
– 40 mm / – 1.57 in
in comparison with
Level Gauges SNK
1 Contact opens
and 1 contact
closes when  uid
level drops below
contact level
1
Pin assignment
at empty reservoir
(default setting at
point of delivery)
Clearance Hole:
Ø13 (Ø.51) for M12 / Ø10,5 (Ø.41) for M10 /
Ø13,5 (Ø.53) for UNC, UNF and UNEF
Dial Thermometer with
Probe T1/T2 (optional)
HZB-27-03-2012-EN.indd 7 29.03.2012 10:23:24
E8 www.stauff.com
Fluid Level / Temperature Indicators
Thermo Switch § Type TS
Connection Details and Electrical Functions
Types C and O: Industrial standard connector (contact gap:
9,4 mm / .37 in), similar to DIN EN 175301-803-C / ISO 6952
Types CD and OD: Five-pin circular connector M12,
A-coded, according to IEC 61076-2-101
PG7
34
(1.34)
Characteristics
Fluid temperature measurement in conjunction with
STAUFF Level Gauges SNA, SNK and SNKK
Installation
§ Replaces the lower banjo bolt of the Level Gauge
§ Available for bolt size M12 only
§ Clearance hole: Ø13 mm / Ø.51 in
Materials
§ Metal parts made of Steel (1.0718)
§ Plastic parts made of glass-bre reinforced Polyamide (PA)
Electrical Specications (General)
§ Thermo switch is activated when the uid temperature
reaches the respective switching temperature
§ Available with switching temperatures of +60 °C / +140 °F,
+70 °C / +158 °F, +80 °C / +176 °F or +90 °C / +194 °F
(with a switching tolerance of ±5 °C / ±9 °F and a
hysteresis of 35 °C / 63 °F)
§ Available as a break contact (normally closed) or make
contact (normally open)
§ Either equipped with industrial standard connector (types
C / O) or ve-pin circular connector M12 (types CD / OD)
§ Thermo switch can be rotated by 360° to its nal direction
TS - SNA/SNK - O - 60
Order Codes
a Type
Thermo Switch TS for use with
Level Gauges SNA, SNK and SNKK
TS-SNA/SNK
b Electrical Function
Break contact, opens at switching temperature
(normally closed); Equipped with standard connector
O
Break contact, opens at switching temperature
(normally closed); Equipped with connector M12
OD
Make contact, closes at switching temperature
(normally open); Equipped with standard connector
C
Make contact, closes at switching temperature
(normally open); Equipped with connector M12
CD
c Switching Temperature
Contact switches at +60 °C / +140 °F 60
Contact switches at +70 °C / +158 °F 70
Contact switches at +80 °C / +176 °F 80
Contact switches at +90 °C / +194 °F 90
Dial Thermometer with Probe § Types T1/T2
Dimensions
Dimensions (
mm
/
in
)
A B
In conjunction with Level Gauge SNA
39 76
1.54 2.99
In conjunction with Level Gauge SNK
47 68
1.85 2.68
In conjunction with Level Gauge SNKK
47 68
1.85 2.68
115 (4.53)
M12
10
(.39)
c
17 (
c
.67)
48
(1.89)
38
(1.50)
A B
Characteristics
Visual uid temperature measurement in conjunction
with STAUFF Level Gauges SNA, SNK and SNKK
Nominal Sizes and Designs
§ Probe lengths of 200 mm / 7.87 in or 300 mm / 11.81 in
§ Scale diameter of 33 mm / 1.30 in
Please consult STAUFF for special versions.
Scale Options
§ Celsius scale of 0°C ... +100 °C
§ Dual Celsius / Fahrenheit scale of up to +100 °C / +200 °F
Materials
§ Probe made of Stainless Steel V4A (1.4571)
Technical Data
§ IP 65 protection rating: Dust tight and protected
against water jets
T1: 200 (7.87)
T2: 300 (11.81)
33
(1.30)
15,6
(.61)
25,5
(1.00)
Electrical Specications (Alternating Current)
§ Maximum voltage: 250 V, 2,5 (1,6) A, 50 Hz
§ Maximum current at 2000 operations:
4,0 A at cos j = 4,45 / 250 V, 135 °C
§ Maximum current at 10000 operations:
2,5 A at cos j = 1,00 / 250 V, 150 °C
§ Minimum current: 20 mA
Electrical Specications (Direct Current)
§ Maximum voltage: 42 V
15,5
(.61)
18
(.71)
M12
51
(2.01)
Analog
Signal
24 V DC
0 V DC
Connection 1 not available
Connection 2 not engaged
1
3
2
Thermostat
Cable 2
Thermostat
Cable 1
Ground
Cable
Dimensional drawings: All dimensions in mm (in).
Dimensions / Technical Data / Order Codes
SW 13
(Hex .51)
Installation
§ Requires a special banjo bolt (with internal M8
port for the dial thermometer with probe) to replace
the lower standard banjo bolt of the Level Gauge
§ Use suitable wrench (SW 13 / Hex .51) to fasten;
turning on the body itself may damage the product
Please note that Dial Thermometers with Probe can only
be ordered in conjunction with Level Gauges SNA, SNK
and SNKK. Please see page E4 to E7 for details.
HZB-27-03-2012-EN.indd 8 29.03.2012 10:23:26
Hydraulic
Accessories
E
Temperature Sensor § Type TS-SNA/SNK-PT100
Fluid Level / Temperature Indicators
www.stauff.com E9
Dimensions
A B
89 (3.50)
20
(.79)
M12
M12
6 (.24)
TS-SNA/SNK-PT100
Order Codes
a Type
Temperature Sensor PT100 TS-SNA/SNK-PT100
Connection Details and Electrical Functions
Four-pin circular connector M12,
A-coded, according to IEC 61076-2-101
SW
16 (Hex .63)
M12
6
(.24)
14
(.55)
SW
16 (Hex .63)
2
4
1
3
Pin Assignment
1
2
3
4
Dimensional drawings: All dimensions in mm (in).
Dimensions / Technical Data / Order Codes
Dimensions (
mm
/
in
)
A B
In conjunction with Level Gauge SNA
43,5 45,5
1.71 1.79
In conjunction with Level Gauge SNK
51 38
2.01 1.50
In conjunction with Level Gauge SNKK
51 38
2.01 1.50
Technical Data
§ Operating temperature range (for the connector area):
-25 °C ... +80 °C / -13 °F ... +176 °F
§ IP 68 protection rating: Dust tight and protected against
powerful water jets; even immersion (beyond 1 m / 3.28 ft)
in water is possible under dened conditions of pressure
and time
Characteristics
Fluid temperature measurement in conjunction with
STAUFF Level Gauges SNA, SNK and SNKK; Analysis of
signals with TS-SNA/SNK-PT100-D Display / Evaluation Unit,
TS-SNA/SNK-PT100-C Signal Converter or system-sided
amplier or transducer
Installation
§ Replaces the lower banjo bolt of the Level Gauge
§ Available for bolt size M12 only
§ Clearance hole: Ø13 mm / Ø.51 in
Materials
§ Metal parts (including all uid-affected parts) made
of Stainless Steel V2A (1.4305)
Electrical Specications
§ Measuring temperature range:
-40 °C ... +150 °C / -40 °F ... +302 °F
§ Platinum mesuring element PT100 according to
DIN EN 60751, class A
§ Accuracy: ±(0,15 K + 0,002 x
|
t
|
)
§ Max. contact current: 2,0 mA
§ Equipped with four-pin circular connector M12
with gold-plated contacts
Temperature Sensor with Direct Installation Set
Type TS-SNA/SNK-PT100-T
Characteristics
Direct uid temperature measurement without STAUFF
Level Gauges SNA, SNK and SNKK; Analysis of signals
with TS-SNA/SNK-PT100-D Display / Evaluation Unit,
TS-SNA/SNK-PT100-C Signal Converter or system-sided
amplier or transducer
Installation
§ Direct installation to the outer wall of
the hydraulic reservoir or gearbox
§ Compact design and easy installation
§ Clearance hole: Ø13 mm / Ø.51 in
max. 8
(.31)
Order Codes
a Type
Temperature Sensor PT100 TS-SNA/SNK-PT100
b Direct Adaptor
Direct installation set including M12
screw nut, gasket, front ring and O-ring
T
c Sealing Material
NBR (Buna-N®) (standard option) B
FPM (Viton®) V
EPDM E
The direct installation set can also be used in
conjunction with Thermo Switches TS (see page E8).
Please consult STAUFF for further information.
TS-SNA/SNK-PT100 - T - B
28
(1.10)
61
(2.40)
SW
18 (Hex .71)
Materials
§ Fluid-affected parts made of Stainless Steel V2A (1.4305)
§ M12 screw nut made of Steel, zinc-plated
§ Front ring made of Stainless Steel V2A (1.4305)
§ O-ring and gasket made of NBR (Buna-N®)
(standard option), FPM (Viton®) or EPDM
Please see top of this page for Technical Details and
Electrical Specications for the Temperature Sensor.
HZB-27-03-2012-EN.indd 9 29.03.2012 10:23:29
E10 www.stauff.com
Dimensions / Technical Data / Order CodesFluid Level / Temperature Indicators
Display / Evaluation Unit § Type TS-SNA/SNK-PT100-D
Characteristics
Mobile or stationary uid temperature indication and
evaluation in conjunction with STAUFF Temperature
Sensor TS-SNA/SNK-PT100
Features
§ Connection of temperature sensor as 4-wire sensor
§ Display of the current system temperature
in °C or °F with 4-digit alpha-numeric display
§ Measuring temperature range:
-40 °C ... +300 °C / -40 °F ... +572 °F
(may be limited by connected sensor)
§ Generation of 2 output signals according to
parameter setting:
Switching output - normally open / closed (programmable)
Analog output - 4 ... 20 mA or 0 ... 10 V (scaleable)
§ Provision of process data via IO-Link 1.0 (38.4 kBaud)
§ Designed for bi-directional connection
48
(1.89)
Programming button
SW 30
(Hex 1.18)
LED’s
Display
G1/2
93
(3.66)
Ø34
(Ø1.34)
16,5
(.65)
Connector M12 x 1 for temperature sensor PT100;
cable (0,6 m / 1.97 ft) included in set
60
(2.36)
M12 x 1
SET-TS-SNA/SNK-PT100-D
Order Codes
a Type
Complete set of Display /
Evaluation Unit for use with
Temperature Sensor
SET-TS-SNA/SNK-PT100-D
TS-SNA/SNK-PT100
Complete sets include the following components:
§ Display / Evaluation Unit TS-SNA/SNK-PT100-D
§ Cable with M12 plug / M12 socket (0,6 m / 1.97 ft)
§ External power supply unit
100 ... 240 V AC (50 ... 60 Hz) / 200 mA
§ User manual (CD-ROM)
All components included in the complete set are also
available as single parts. Consult STAUFF for further
information.
Signal Convertor § Type TS-SNA/SNK-PT100-C
Electrical Specications
§ Operating voltage: 18 ... 32 V DC
§ Current rating: 250 mA
§ Voltage drop: <2 mA
§ Response time of switching output: 130 ms
§ Analog output: 4 ... 20 mA or 0 ... 10 V (scaleable)
§ Accuracy of switching output: ±0,3 °C / ±.54 °F
§ Accuracy of analog output: ±0,3 °C / ±.54 °F
§ Accuracy of display: ±0,3 °C / ±.54 °F
§ Resolution of switching output: 0,1 °C / .18 °F
§ Resolution of analog output: 0,1 °C / .18 °F
§ Resolution of display: 0,1 °C / .18 °F
§ Temperature coefcient (of the span per 10 K): 0,1 %
§ Short-circuit protection (pulsed)
§ Protection against reverse polarity and overload
§ Equipped with four-pin circular connector M12
with gold-plated contacts
Technical Data
§ IP 67 protection rating: Dust tight and protected
against powerful water jets; even immersion
(up to 1 m / 3.28 ft) in water is possible under
dened conditions of pressure and time
§ Operating temperature range:
-25 °C ... +70 °C / -13 °F ... +158 °F
Characteristics
Signal convertor for use with STAUFF
Temperature Sensor TS-SNA/SNK-PT100
Features
§ Converts the measured signal into a proportional
analog signal: Analog output - 4 ... 20 mA (scaleable)
§ Measuring temperature range (factory setting):
-50 °C ... +150 °C / -58 °F ... +302 °F
§ Provision of process data via IO-Link 1.0 (38.4 kBaud)
§ Designed for bi-directional connection
Electrical Specications
§ Operating voltage: 20 ... 32 V DC
§ Analog output: 4 ... 20 mA (scaleable)
§ Maximum load: 300 Ω
§ Rise time analog output: 400 ms
§ Accuracy of analog output:
±0,3 °C / ±.54 °F + (±0,1 % of measuring span)
§ Resolution: ≤0,1 °C / ≤.18 °F
§ Temperature coefcient (of the span per 10 K): 0,1 %
§ Short-circuit protection (pulsed)
§ Protection against reverse polarity and overload
§ Equipped with four-pin circular connector M12
with gold-plated contacts
Order Codes
TS - SNA/SNK - PT100-C
a Type
Signal Convertor for use
with Temperature Sensor TS-SNA/SNK-PT100-C
TS-SNA/SNK-PT100
18 (.71)
25 (.98)
M12 x 1
M12 x 1
52 (2.05)
22 (.87)
Connector for voltage
supply and output signals
Connector for
temperature sensor PT100
Technical Data
§ IP 67 protection rating: Dust tight and protected
against powerful water jets; even immersion
(up to 1 m / 3.28 ft) in water is possible under
dened conditions of pressure and time
§ Operating temperature range:
-25 °C ... +70 °C / -13 °F ... +158 °F
LED’s
Dimensional drawings: All dimensions in mm (in).
HZB-27-03-2012-EN.indd 10 29.03.2012 10:23:31