Carrier NSA-RH-DUCT Manual

Carrier Måling NSA-RH-DUCT

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Relative Humidity, Duct, Thermistor
Installation and Operation
#NSA-HH/RH2-CP-D-C, NSA-HH/RH3-CP-D-C – 11/14/2019
Specifications subject to change without notice.
Catalog No. 11-808-775-01 Page 1 of 10
Overview
The Carrier Relative Humidity with Thermistor Duct Series utilizes a thermoset polymer
capacitive sensing element with a factory fitted hydrophobic filter to improve its moisture
resistance. The sensing elements multilayer construction also provides excellent
resistance in applications where dust, dirt, oils and common environmental chemicals
are found. The RH duct sensors include on board DIP switches which allow the user to
select the desired output signal and can be powered by AC or DC power sources. Each
unit also contains 0%, 50%, and 100% test options to verify that the transmitter is both
working and wired properly. Field calibration can be performed by using the increment
and decrement calibration DIP switches without the need to replace the sensing
element. These enhancements provide increased flexibility and outstanding long-term
reliability without the need to replace the sensors in the field. Duct configurations feature
a weatherproof Euro style enclosure with a gasketed cover and conformally coated
circuit boards for increased moisture resistance in high humidity environments. The sensor is protected by a stainless-steel
sintered filter.
Applications: Humidification, Dehumidification, Supply / Discharge / Return Air, Economizers, Clean Rooms, Data
Centers, Process Control, Schools, Hospitals, Office Buildings
Part Numbers
NSA-HH/RH2-CP-D-C NSA-HH/RH3-CP-D-C
Specifications
RH Supply Voltage
(Reverse Polarity Protected):
4-20 mA: 250 Ohm Load: 15 - 40 VDC / 18 - 28 VAC
500 Ohm Load: 18 - 40 VDC / 18 - 28 VAC
0-5 VDC: 12 - 40 VDC / 18 - 28 VAC | 0-10 VDC: 18 - 40 VDC / 18 - 28 VAC
RH Supply Current (VA):
Voltage Output: 8 mA max (0.32 VA) | Current Output: 24 mA max (0.83 VA)
RH Output Load Resistance:
4-20 mA: 700 Ohms max | 0-5 VDC or 0-10 VDC: 4K Ohms min
RH Output Signal:
2-wire: 4 - 20 mA (Factory Default)
3-wire: 0-5 or 0-10 VDC and 4 - 20 mA (Field Selectable)
RH Accuracy @ 77°F (25°C):
+/- 1% over 20% RH Range between 20 to 90%
+/- 2%, 3%, or 5% from 10 to 95%
RH Measurement Range
0-100%
Operating RH Range:
0 to 95% RH, non-condensing (Conformally Coated PCB’s)
Operating Temperature Range:
-40 to 140°F (-40 to 60°C)
Storage Temperature Range:
-40 to 149°F (-40 to 65°C)
RH Stability | Repeatability | Sensitivity:
Less than 2% drift / 5 years | 0.5% RH | 0.1% RH
RH Response Time (T63):
20 Seconds Typical
RH Sensor Type:
Capacitive with Hydrophobic Filter
RH Transmitter Stabilization Time:
30 Minutes (Recommended time before doing accuracy verification)
RH Connections | Wire Size:
Screw Terminal Blocks (Polarity Sensitive) | 16 (1.31 mm²) to 26 AWG (0.129 mm²)
RH Terminal Block Torque Rating:
4.43 to 5.31 lb-in (0.5 to 0.6 Nm)
RH NIST Test Points:
Default Test Points: 3 Points (20%, 50% & 80%) or 5 Points (20%, 35%, 50%,
65% & 80%)
1% NIST Test Points: 5 Points within selected 20% Range (ie. 30%-50% are 30,
35, 40, 45 & 50)
Nominal Thermistor Resistive Output @
77°F (25°C) | (Lead Wire Colors) Non-Linear
NTC (Negative Temperature Coefficient):
10KΩ (White/Green)
Thermistor Accuracy 32-158°F (0-70°C):
+/- 0.36°F (0.2°C)
Thermistor Power Dissipation Constant:
3 mW/°C
Relative Humidity, Duct, Thermistor
Installation and Operation
#NSA-HH/RH2-CP-D-C, NSA-HH/RH3-CP-D-C – 11/14/2019
Specifications subject to change without notice.
Catalog No. 11-808-775-01 Page 2 of 10
Thermistor Sensor Response Time (T63):
10 Seconds nominal
Lead Wire Length | Conductor Size:
14” (35.6 cm) | 22 AWG (0.65 mm)
Insulation | Rating:
Etched Teflon (PTFE) Colored Leads | Mil Spec 16878/4 Type E
Enclosure Specifications (Material,
Flammability,
Temperature, NEMA/IP Rating):
“-EH” Enclosure: ABS Plastic; UL94-V0; -40 to 140°F (-40 to 60°C)
“-4X” Enclosure: Polystyrene Plastic; UL94-V2; -40 to 158°F (-40 to 70°C); NEMA
4X (IP 66)
Sensing Tube Material | Filter Material:
“EH” Enclosure: 304 Series Stainless Steel | 304 Series Stainless Steel
“-4X” Enclosure: Schedule 40 PVC (White) | Slotted PVC without filter
Sensing Tube Dimensions (Length x
Diameter):
“-EH” Models with Sintered Filters: 7.75” (196.85 mm) x 0.75” (19.05 mm)
“-4X” Models: 7.20” (182.88 mm) x 0.84” (21.34 mm)
Product Dimensions (L x W x D):
See Dimensional Drawing below
Product Weight:
1.22 lbs. (0.55 kg)
Agency Approvals:
CE, RoHS2, WEEE
Dimensional Drawing
Euro Enclosure [EH]
NEMA 4X Enclosure [4X]
Front View
Right View
Top View
Figure 1

Produkt Specifikationer

Mærke: Carrier
Kategori: Måling
Model: NSA-RH-DUCT

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