Series RHP-E/N Wall Mount
Bulletin AQ-RHP-E/N
Series RHP-E/N Wall Mount Humidity/Temperature/Dew Point Transmitter
Specifications - Installation and Operating Instructions
1.10
[27.96]
North American
.552
[14.02]
2x .176
[4.47]
4.50
[114.30]
3.000
[76.20]
.573
[14.56]
European
2.80
[71.12]
3.65
[92.72]
3.56
[90.42]
European
INSTALLATION
WARNING
Disconnect power supply before installation to prevent electrical
shock and equipment damage.
Make sure all connections are in accordance with the job wiring diagram and in
accordance with national and local electrical codes. Use copper conductors only.
Use electrostatic discharge precautions (e.g., use of wrist
straps) during installation and wiring to prevent equipment
damage.
NOTICE
1.18
[30]
.33
[8.38]
3x .37
[9.36]
1.16
[29.39]
3x .15
[3.87]
North American
The Series RHP-E/N Wall Mount Humidity/Temperature/Dew Point
Transmitter is the most versatile room transmitter on the market. The stylish
housing is well vented to provide air flow across the sensor to improve
measurement accuracy. An optional LCD display can be integral to the transmitter
or a remote display can be ordered for building balancing or LEED® validation. The
LCD display indicates the ambient temperature along with the humidity or dew
point. The transmitter has internal dip switches to select the temperature
engineering units and whether the transmitter outputs humidity or dew point.
The humidity and temperature sensors are field replaceable to reduce service cost
and inventory. The humidity and the dew point are measured using a capacitive
polymer sensor that completely recovers from 100% saturation. The humidity and
dew point can have either a current or voltage output, while the optional
temperature output can be a current, voltage, RTD or thermistor. For models with
current or voltage for the temperature output, the temperature range is field
selectable.
NOTICE
1.08
[27.33]
Avoid locations where severe shock or vibration, excessive
moisture or corrosive fumes are present.
NOTICE
Do not exceed ratings of this device, permanent damage not
covered by warranty may result. The 4-20 mA models are not
designed for AC voltage operation.
SPECIFICATIONS
Relative Humidity Range: 0 to 100% RH.
Temperature Range: -40 to 140°F (-40 to 60°C) for thermistor and RTD sensors.
-20 to 140°F (-28.9 to 60°C) for solid state band gap temperature sensors.
Dew Point Temperature Range: -20 to 140°F (-28.9 to 60°C); 0 to 100°F
(-17.8 to 37.8°C); 40 to 90°F (4.4 to 32.3°C); -4 to 140°F (-20 to 60°C) fieldselectable ranges.
Accuracy:
RH: Model RHP-2XXX ±2% 10-90% RH @ 25°C; Model RHP-3XXX ±3%
20-80% RH @ 25°C; Model RHP-5XXX ±5% 20-80% RH @ 25°C;
Thermistor temperature sensor: ±0.36°F @ 77°F (±0.2°C @ 25°C);
RTD temperature sensor: DIN Class B; ±0.54°F @ 32°F (±0.3°C @ 0°C);
Solid state band gap temperature sensor: ±0.9°F @ 77°F (±0.5°C @ 25°C).
Hysteresis: ±1%.
Repeatability: ±0.1% typical.
Temperature Limits: Operating: -40 to 140°F (-40 to 60°C);
Storage: -40 to 176°F (-40 to 80°C).
Compensated Temperature Range: -4 to 140°F (-20 to 60°C).
4-20 mA Loop Powered Outputs:
Power requirements: 10 to 35 VDC;
Output signal: 4 to 20 mA, 2 channels for humidity/solid state temperature
sensor models (loop powered on RH). Switch selectable RH/dew point. Switch
selectable normal or reverse output.
0-5/10V Outputs:
Power requirements: 15 to 35 VDC or 15 to 29 VAC;
Output load: 5 mA max., 2 channels for humidity/solid state temperature
sensor models. Switch selectable 0-10V/2-10V or 0-5V/1-5V output. Switch
selectable RH/dew point. Switch selectable normal or reverse output.
Solid State Band Gap Temperature Sensor Output Ranges: Switch selectable, 20 to 140°F (-28.9 to 60°C); 0 to 100°F (-17.8 to 37.8°C); 40 to 90°F (4.4 to 32.3°C);
-4 to 140°F (-20 to 60°C).
Response Time: 15 seconds.
Electrical Connections: Screw terminal block.
Drift: <1% RH/year.
RH Sensor: Capacitance polymer.
Enclosure Material: White polycarbonate (European); Warm gray polycarbonate
(North American).
Display: Optional LCD; Switch selectable %RH or dew point, °F/°C.
Display Resolution: RH: 1%; Temperature: 0.1°F (0.1°C); Dew Point: 1°F (1°C).
Weight: 4.4 oz (125 g).
Agency Approvals: CE.
LEED® is a registered trademark of the U.S. Green Building Council.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
www.dwyer-inst.com
e-mail: [email protected]
Voltage Output Selected: Voltage outputs may be powered with 15-35 VDC or 1529 VAC. Note polarity when using DC power. Wire the RH voltage output as shown
in Figure 3. If the unit has a voltage temperature output, wire the temperature
receiver between terminal 6 and the negative terminal of the power supply. All units
come with RH and Temperature voltage outputs. If the temperature or RH voltage
output is not used it may be left disconnected. If the unit has a passive temperature
sensor, wire to terminals 7 and 8.
POWER
SUPPLY
+
-
- TEMP RECEIVER
RH RECEIVER 0-5V OR 0-10V +
+ 0-5V OR 0-10V
PASSIVE TEMP.
SENSOR
(IF PRESENT)
Figure 1
1. Push tab on top and bottom of the back plate and lift the cover from the back plate.
(See Figure 1).
2. Select the mounting location, away from diffusers, lights, or any external
influences.
3. Mount transmitter on a vertical surface to a standard electrical box using the two
#6 M2C type screws provided.
4. Pull wires through the sub base hole and make the necessary connections.
5. Reattach cover to back plate.
Wiring
Use maximum 18 AWG wire for wiring to terminals. Refer to Figures 2 and 3 for
wiring information.
1 2 3 4 5 6 7 8
Figure 3
Setting the Current/Voltage Select Switch
Remove the cover of the unit as shown in Figure 1. The Current/Voltage select
switch is located on the back of the circuit board. Set the switch “IOUT” for current,
“VOUT” for voltage.
Models with Selectable Current or Voltage Outputs (RHP-X(E or N)44)
These models may be wired for current or voltage output. Note that both outputs
must be wired either for current or voltage. It is not possible to wire one output for
current, and the other for voltage.
Prior to wiring, verify that the Current/Voltage select switch shown in Figure 4 is set
to current or voltage as desired. Refer to “Setting the Current/Voltage Select
Switch”.
Current Output Selected: Wire as shown in Figure 2. Current outputs must be
powered with 10-35 VDC. If the RH output is not required, wire the negative
terminal of the power supply to terminal 1 of the transmitter. All units come with 420 mA RH and Temperature outputs. If the 4-20 mA temperature output is not used
it maybe left disconnected. If the unit has a passive temperature sensor, wire to
terminals 7 and 8.
RH RECEIVER +
4-20MA
+
- TEMP RECEIVER
+ 4-20MA
PASSIVE TEMP.
SENSOR
(IF PRESENT)
1 2 3 4 5 6 7 8
Figure 2
VOUT
1 2 3 4 5 6 7 8
DIP SWITCH SETTINGS
CURRENT VOLTAGE SELECT SWITCH
Figure 4
POWER
SUPPLY
-
IOUT
ON
DIP SWITCH SETTINGS
To access the DIP SWITCH, remove the cover of the unit as shown in Figure 1. The
DIP SWITCH is located on the back of the circuit board as shown in Figure 4.
TROUBLESHOOTING
1. Verify that the unit is mounted in the correct position.
2. 4-20 mA Models:
Verify appropriate supply voltage. The transmitter requires a minimum of 10 and a
maximum of 35 VDC at its connection for proper operation. Choose a power supply
with a voltage and current rating which meets this requirement under all operating
conditions. If the power supply is unregulated, make sure voltage remains within
these limits under all power line conditions. Ripple on the supply should not exceed
100 mV.
Figure 5
Loop Resistance – The maximum allowable loop resistance depends on the
power supply voltage. Maximum loop voltage drop must not reduce the transmitter
voltage below the 10 VDC minimum. Maximum loop resistance can be calculated
with the following equation. Vps is the power supply voltage.
ALL DIP SWITCHES are factory set to “ON”
5V/10V Output Select (Applies only to Voltage Output units)
DIP SWITCH#1 OFF: Output = 0-5V
DIP SWITCH#1 ON: Output = 0-10V
Zero Suppression (Applies only to Voltage Output Units)
DIP SWITCH#2 OFF : Output range = 1-5V or 2-10V, depending on output range
DIP SWITCH#2 ON : Output range = 0-5V or 0-10V, depending on output range
Upper Display reads RH or DEW POINT
DIP SWITCH#3 OFF: Upper Display reads Dew Point
DIP SWITCH#3 ON: Upper Display reads RH
Rmax =
When set to normal output, the output increases as the RH increases. When set to
inverted output, the output decreases as the RH increases.
Example: Normal 4-20 mA output, 0% RH = 4 mA, 100% RH = 20 mA
Inverted 4-20 mA output, 0% RH = 20 mA, 100% RH = 4 mA
TEMP OUTPUT, Normal or Invert
DIP SWITCH#5 OFF: Output is inverted
DIP SWITCH#5 ON: Output is Normal
When set to normal output, the output increases as the temperature increases.
When set to inverted output, the output decreases as the temperature increases.
Example: Normal 4-20 mA output, -20°F = 4 mA, +140°F = 20 mA
Inverted 4-20 mA output, -20°F = 20 mA, +140°F = 4 mA
20 mA
Some receivers, particularly loop powered indicators, may maintain a fixed loop
voltage to power the device. This voltage drop must also be subtracted from the
power supply voltage when calculating the voltage margin for the transmitter. The
following equation takes this into account. Vrec is the receiver fixed voltage.
Rmax =
RH OUTPUT, Normal or Invert
DIP SWITCH#4 OFF: Output is inverted
DIP SWITCH#4 ON: Output is Normal
Vps-10.0
Vps-10.0-Vrec
20 mA
0-10 V Output Models:
Verify appropriate supply voltage. The 0-10V output models require a DC supply of
15 to 35 V or an AC supply of 15-29 V for proper operation maximum. Maximum
output load is 5 mA.
FIELD SENSOR REPLACEMENT
Replacement sensors are available as listed on page 4. Replacement sensors are
factory calibrated and do not require any further calibration.
1. Remove cover as shown in Figure 1.
2. Remove existing sensor as shown in Figure 6.
3. Replace the sensor with appropriate replacement sensor.
4. Reattach cover to base plate.
°F/°C Select
DIP SWITCH#6 OFF: °C
DIP SWITCH#6 ON: °F
Temperature Output Range Select
Range
-4 to +140°F (-20 to +60°C)
+40 to +90°F (+4.4 to +32.2°C)
0 to +100°F (-17.8 to +37.8°C)
-20 to +140°F (-28.9 to +60°C)
Dip Switch 7
OFF
OFF
ON
ON
Dip Switch 8
OFF
ON
OFF
ON
The temperature range applies only to the current or voltage output. If the unit has
a display, it will display temperature from -40 to +140°F (-40 to +60°C). If the unit is
set to read DEW POINT, the output range of the DEW POINT will be the same as
the Temperature Output Range.
Note: The display will indicate temperature even if the unit does not have a
temperature output.
Replacement Sensor
Figure 6
Remote Display
For models that are ordered without an integral LCD display, remote display Model
A-449 or A-449A can be used to display the temperature and humidity or dew point.
The mini USB plug of the remote display plugs into the receptor on the side of the
housing. After a short warm up time, the display will begin to show the current
temperature and humidity or dew point measurements. Humidity or dew point can
be selected via the internal dip switches as described earlier in this manual.
NOTICE
Sensor is sensitive to Electro-Static Discharge (ESD). Follow
industry standard practice for control and protection against
ESD. Failure to exercise good ESD practices may cause damage to the sensor.
MAINTENANCE
Upon final installation of the Series RHP-E/N Temperature/Humidity/Dew Point
Transmitter and the companion receiver, no routine maintenance is required. A
periodic check of the system calibration is recommended. Except for sensor
replacement, the Series RHP-E/N is not field serviceable and should be returned if
repair is needed (field repair should not be attempted and may void warranty). Be
sure to include a brief description of the problem plus any relevant application
notes. Contact customer service to receive a return goods authorization number
before shipping.
Model Chart
Example
Series
Accuracy
RHP 2 N 4 A LCD
RHP
2
3
5
Housing Type
N
E
RH Output
4
Temperature
A
Sensor/Output
B
C
D
E
F
0
4
Option
Blank
LCD
FC
NIST
RHP-2N4A-LCD
RH/Passive Temperature Sensor Transmitter
2% Accuracy
3% Accuracy
5% Accuracy
North American Wall Mount
European Wall Mount
0-10V/0-5V/4-20 mA
10K @ 25°C Thermistor Dwyer Curve A
10K @ 25°C Thermistor Dwyer Curve B
3K @ 25°C Thermistor Dwyer Curve C
100Ω RTD DIN 385
1KΩ RTD DIN 385
20KC 25°C Thermistor Curve F
NONE
0-10V/0-5V/4-20 mA Solid State Sensor
No Options
LCD Display
Factory Test Report
NIST Calibration Test Certificate
ACCESSORIES
Replacement sensor part number table:
Replacement RHP
RHP
Sensor Part # Model #
Model #
RHP-2N4A RHPS-N2A
RHP-2E4A
RHP-2N4B RHPS-N2B
RHP-2E4B
RHP-2N4C RHPS-N2C
RHP-2E4C
RHP-2N4D RHPS-N2D
RHP-2E4D
RHP-2N4E RHPS-N2E
RHP-2E4E
RHPS-N2F
RHP-2N4F
RHP-2E4F
RHPS-N20
RHP-2N44
RHP-2E44
RHP-3N4A RHPS-N3A
RHP-3E4A
RHP-3N4B RHPS-N3B
RHP-3E4B
RHP-3N4C RHPS-N3C
RHP-3E4C
RHP-3N4D RHPS-N3D
RHP-3E4D
RHP-3N4E RHPS-N3E
RHP-3E4E
RHPS-N3F
RHP-3N4F
RHP-3E4F
RHPS-N30
RHP-3N44
RHP-3E44
©Copyright 2014 Dwyer Instruments, Inc.
Replacement
Sensor Part #
RHPS-E2A
RHPS-E2B
RHPS-E2C
RHPS-E2D
RHPS-E2E
RHPS-E2F
RHPS-E20
RHPS-E3A
RHPS-E3B
RHPS-E3C
RHPS-E3D
RHPS-E3E
RHPS-E3F
RHPS-E30
RESISTANCE
Temperature
°F
°C
-67.0
-55
-58.0
-50
-49.0
-45
-40.0
-40
-31.0
-35
-22.0
-30
-13.0
-25
-4.0
-20
5.0
-15
14.0
-10
23.0
-5
32.0
0
41.0
5
50.0
10
59.0
15
68.0
20
77.0
25
86.0
30
95.0
35
104.0
40
113.0
45
122.0
50
131.0
55
140.0
60
149.0
65
158.0
70
167.0
75
176.0
80
185.0
85
194.0
90
203.0
95
100 212.0
105 221.0
110 230.0
115 239.0
120 248.0
125 257.0
130 266.0
135 275.0
140 284.0
145 293.0
150 302.0
VS TEMPERATURE TABLE
Resistance Curves (in Ohms)
C
B
A
607800.00 963849.00 289154.70
441200.00 670166.00 201049.80
323600.00 471985.00 141595.50
239700.00 336479.00 100943.70
179200.00 242681.00 72804.30
135200.00 176974.00 53092.20
102900.00 130421.00 39126.30
78910.00 97081.00 29.124.30
61020.00 72957.00 21887.10
47540.00 55329.00 16598.70
37310.00 42327.00 12698.10
9795.00
29490.00 32650.00
7617.60
23460.00 25392.00
5970.30
18780.00 19901.00
4713.60
15130.00 15712.00
3747.90
12260.00 12493.00
3000.00
10000.00 10000.00
2417.10
8057.00
8194.00
1959.30
6531.00
6752.00
1597.80
5326.00
5592.00
1310.40
4368.00
4655.00
1080.60
3602.00
3893.00
895.80
2986.00
3271.00
746.40
2488.00
2760.00
624.90
2083.00
2339.00
525.60
1752.00
1990.00
444.00
1480.00
1700.00
376.50
1255.00
1458.00
321.00
1070.00
1255.00
274.65
915.50
1084.00
235.98
786.60
939.30
203.58
678.60
816.80
176.28
587.60
712.60
153.18
510.60
623.60
133.59
445.30
547.30
116.88
389.60
481.80
102.57
341.90
425.30
90.30
301.00
376.40
79.74
265.80
334.00
70.59
235.30
297.20
62.67
208.90
265.10
55.83
186.10
237.00
Printed in U.S.A. 2/14
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
D
78.32
80.31
82.29
84.27
86.25
88.22
90.19
92.16
94.12
96.09
98.04
100.00
101.95
103.90
105.85
107.79
109.74
111.67
113.61
115.54
117.47
119.40
121.32
123.24
125.16
127.08
128.99
130.90
132.80
134.71
136.61
138.51
140.40
142.29
144.18
146.07
147.95
149.83
151.71
153.58
155.46
157.33
F
E
783.2 2394000.00
803.1 1646200.00
822.9 1145800.00
806800.00
842.7
574400.00
862.5
413400.00
882.2
300400.00
901.9
220600.00
921.6
941.2 163.500.00
122280.00
960.9
92240.00
980.4
70160.00
1000.0
53780.00
1019.5
41560.00
1039.0
32340.00
1058.5
25360.00
1077.9
20000.00
1097.4
15892.00
1116.7
12704.00
1136.1
10216.00
1155.4
8264.00
1174.7
6722.00
1194.0
5498.00
1213.2
4520.00
1232.4
3734.00
1251.6
3100.00
1270.8
2586.00
1289.9
2166.00
1309.0
1822.60
1328.0
1540.00
1347.1
1306.40
1366.1
1112.60
1385.1
951.00
1404.0
815.80
1422.9
702.20
1441.8
606.40
1460.7
525.60
1479.5
N/A
1498.3
N/A
1517.1
N/A
1535.8
N/A
1554.6
N/A
1573.3
FR# 03-444141-00 Rev. 1
www.dwyer-inst.com
e-mail: [email protected]
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