Nivotemp NT 61D, Nivovent NV 71D
9 Appendices
9.1 Technical Data NT 61D
Basic Unit
Version MS VA
L1 = min. 30
L
L2 = min. 70
3.5
4
8 with VA stilling tube
12
116
Rubberised
cork seal
last contact
1st contact
Ø 44
min. 80
M12x1
min.Ø60
min. 80
last contact
Ø51
3.5
57
min. Ø61 with stilling tube
Ø6
Housing swivels 270 °
Ø90
Ø73
Ø
Operating pressure max. 1 bar max. 1 bar
Operating temperature -20 °C to +80 °C -20 °C to +80 °C
Float SK 610 SK 221
Min. fluid density 0.80 kg/dm³ 0.85 kg/dm³
Lengths (all versions) 280, 370, 500 mm (Standard) variable to max.
1500 mm
Material/Version MS VA
Display housing PA PA
Float rigid PU 1.4571
Immersion tube Brass 1.4571
Flange (DIN 24557) PA PA
Weight at L=280 mm
Each 100 mm add
approx. 200 g
approx. 30 g
approx. 300 g
approx. 50 g
Level switching output K10
Max. number 2
Function NO/NC*
Voltage max. 30 V DC
Switching current max. 0.5 A
Contact load max. 10 VA
Min. contact spacing 40 mm
*NO = falling NC contact / NC = falling NO contact
Temperature display electronics
Display 4 character 7 segment LED
Operation Via 3 keys
Memory Min. / Max. Data memory
Starting current input approx. 100 mA for 100 ms
Current input during operation approx. 50 mA (without current- and switching
outputs)
Supply voltage (U
B
) 10 – 30 V DC (nominal voltage 24 V DC)
Ambient temperature -20 °C to +70°C
Display units Temperature °C / °F
Display range -20 °C to +120 °C
Alarm setting range 0 °C to 100 °C
Display accuracy ± 1 % from end value
Temperature sensor
Pt 100
Class B, DIN EN 60 751 Tolerance ±0.8 °C
Includes
Mounting screws (quantity 6), rubberised cork seal
30 Bühler Technologies GmbH BE100017 ◦ 01/2020
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