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Electronic Temperature Measurement
Electronic Indicating Temperature Transmitter/Switch
850 SERIES
• Utilizes PT1000 technology for continuous temperature monitoring, electronic
temperature switching, and transmission of analog output while providing local
digital indication
• Allows for one or two switching outputs as well as optional current and voltage outputs
• Three buttons on top allow simple adjustment of the temperature set points, reset
points, switching functions and the measuring range of the optional analog output
• 1/2” NPT Male standard connection
• A variety of stem lengths are available for maximum versatility; also available with
adjustable insertion lengths via the sliding compression fi tting
• Durable stainless steel housing and wetted parts
• Display and electrical connection can be rotated independently
• RoHS compliant
APPLICATIONS
Mechanical engineering
Heating and cooling circuits
Air conditioning technology
Plant construction
Environmental technology
SPECIFICATIONS
Tem peratur e ra nge s Standard -4 °F to 176 °F (-20 °C to 80 °C)
Temperature sensor Platinum resistor (PT1000 2-wire, DIN EN 60751 Class A)
Wetted materials 316Ti stainless steel
Housing material 304 Stainless steel
Max. operating pressure 2,000 psi (1/2" NPT Male fi xed process connection);
Power requirement* 15 Vdc to 35 Vdc
Signal output adjustment Zero point: 0-25% of span
Switch points
Number
Function
Adjustment accuracy
Switch rating Max. 250 mA
Electrical connection M12 x 1 (4-pin), M12 x 1 (5-pin)
Accuracy
Analog signal
Switching output
Display
Tem peratur e s ensor
Display 14 segment-LED, red 4-digit, height 0.35”
Environmental protection IP65 and IP67 (IEC 60529)
* Unregulated
Optional -4 °F to 248 °F ( -20 °C to 120 °C)
Selectable display for °F or °C
725 psi (1/2" NPT Male sliding compression fi tting process
connection)
Full scale: 75-100% of span
Individually adjustable via external control keys
1 or 2 (PNP)
N.O. / N.C.; windows-and hysteresis function
freely adjustable
≤ 0.5% of span
≤ ±0.5% of span + temperature sensor error
≤ ±0.8% of span + temperature sensor error
≤ ±(0.8% of span + temperature sensor error) ±1 digit
For °F: ±[1.8*(0.15 + 0.002 (t - 32) / 1.8)]
For °C: ±(0.15 K + 0.002 I t I) per EN 60751
38
Thermowells are recommended for pressure, corrosive fl uids and high velocity applications.
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ORDERING
INFORMATION
850 SERIES
DIMENSIONS
ORDERING INFORMATION
SERIES 850
SWITCH FUNCTIONS 1 2 N.O. or 2 N.C. switch (PNP*) 4 2 N.O. or 2 N.C. switch (PNP*) with 4 mA to 20 mA 3-wire analog output**
1 N.O. or 1 N.C. switch (PNP*) with
2
4 mA to 20 mA 3-wire analog output
1 N.O. or 1 N.C. switch (PNP*)
3
with 0 Vdc to 10 Vdc 3-wire output
PROCESS CONNECTIONS 2 1/4" NPT Male 47 1/4” NPT Male sliding compression fitting
8 1/2” NPT Male 48 1/2” NPT Male sliding compression fitting
TEMPERATURE RANGES -4/176 -4 °F to 176 °F (-20 °C to 80 °C) -4/248 -4 °F to 248 °F (-20 °C to 120 °C)
ELECTRICAL CONNECTION 2 M12 x 1 (4-pin) 3 M12 x 1 (5-pin, 2 switch and output)
STEM LENGTHS 25mm 25 millimeters*** 100mm 100 millimeters 250mm 250 millimeters
50mm 50 millimeters*** 150mm 150 millimeters 350mm 350 millimeters
STEM DIAMETERS 6 6 mm
Please consult your local NOSHOK Distributor or NOSHOK, Inc. for availability and delivery information.
* NPN available, consult factory
** Available only with M12 x 1 (5-pin) connector
*** Not available with sliding compression fi tting
†
Available only with sliding compression fi tting process connection and stem lengths ≥100 mm
5 2 N.O. or 2 N.C. switch (PNP*) with 0 Vdc to 10 Vdc 3-wire output)**
†
EXAMPLE
Series ...........................................................................850
Switch function ............................2 N.O. or 2 N.C. (PNP)
Process connection ..................................1/4" NPT Male
Temperature range ................................... -4 °F to 176 °F
Electrical connection ............................... M12 x 1 (4-pin)
Stem length ............................................... 100 millimeters
Stem diameter ..........................................................6 mm
Tapered Thread
F
F
in .98 1.97 3.94 5.91 9.84 13.8
m2550100150250350
1 switching output (M12 x 1)
with 4 mA to 20 mA signal
p-switching
††
850 Series
Sliding Compression Fitting
with Tapered Thread
F
F – 2.17" (55 mm)
F
in 3.94 5.91 9.84 13.8
mm 100 150 250 350
850 – 1 – 2 – -4/176 – 2 – 100mm – 6
Dimensions inches (mm) with circular connector
(82 mm)
M12 x 1 (4-pin and 5-pin)
1.42"
(36 mm)
3.23"
1.38"
(35 m)
Ø1.50 "
(38 mm)
Display
rotates >300°
Electrical
Connection
rotates >300°
2 switching output (M12x1)
with 4 mA to 20 mA signal
p-switching
power
supply
S1 output
354
12
††
S2 output
sig. output
2 switching output (M12 x 1)
p-switching
††
Also applies to 0 Vdc to 10 Vdc output
M12 x 1
Ø.1. 38 "
(35 mm)
(29.5 mm)
1.06"
(27 mm)
HEX
1/2"
NPT
Ø.24"
(6 mm)
1.16"
39