senva HD User manual

INSTALLATION INSTRUCTIONS
senvainc.com 1-866-660-8864 (F)1-503-296-2529 9290 SW Nimbus Ave. Beaverton Oregon 97008
HD, Duct Mount
RH and RH/T Transmitters
PRODUCT APPLICATION LIMITATION:
Senva products are not designed for life or safety applications. Senva products
are not intended for use in critical applications such as nuclear facilities, human
implantable device or life support. Senva is not liable, in whole or in part, for
any claims or damages arising from such uses.
INSTALLATION
1. Drill a 3/4” hole in duct. Install sensor using gasket and
screws provided. The pickup tube will ensure adequate air ow
regardless of air ow direction.
2. If installing with a conduit adapter, remove and replace the
factory-installed cable gland.
3. Select output type using “OUTPUT SELECT” switch (not
applicable for thermistors.)
4. Wire sensor as appropriate for the selected output type.
5. Temperature transmitter models only: Select temperature
output range using “TEMP SELECT” jumper. Not applicable to
thermistors.
4-20mA wiring:
mA OUT = 4-20mA output return
V+ PWR = Loop supply voltage
0-5V/0-10V wiring:
V OUT = Voltage output, 0-5 or 10VDC
V- COM = Ground/Common
V+ PWR = Power supply voltage
MENU INC DEC
RH
OF OC
SET

V+ PWR
mA OUT
4-20mA 0-5V/10V
---
V+ PWR
V- COM
V OUT
RH%
TEMP
V OUT
mA OUT
0-10v 0-5v 4-20mA
32-122OF
-40-140OF
RH/T DUAL TRANSMITTER
WWW.SENVAINC.COM
TRANSMITTER
(OPTION)
RTD/
THERMISTOR
(OPTION)
TH
TH
< OR >
OUTPUT
SELECT
TEMP SELECT
6. Apply power to sensor.
7. Tighten cable gland rmly around wires. If installing with a
conduit adapter, seal wire entry to prevent conduit air from
aecting sensor readings or operation.
8. Close lid and tighten screw. Cover must be securely installed
to prevent moisture from entering enclosure.
IMPORTANT WARNINGS
• Only qualied trade installers should install this product
• This product is not intended for life-safety applications
• Do not install in hazardous or classied locations
• The installer is responsible for all applicable codes
• De-energize power supply prior to installation or service
DIMENSIONS OPERATION
In normal operation, display toggles between %RH and Temp.
For manual oset(1), press MENU button to select parameter to
set:
Temp units oF or oC
RH oset -5 to 5% RH in 0.1% RH increments
Temp oset(2) -5 to 5oin 0.1oincrements
Press INC or DEC to change value of selected parameter.
Press MENU button to move to next parameter.
Settings are saved automatically.
(1) See CALIBRATION section prior to making adjustments.
(2) Temperature oset does not apply to thermistors.
DRAWN
CHECKED
ENG APPR
MGR APPR
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
ANGLES ±X.X°
2 PL ±X.XX 3 PL ±X.XXX
NAME
daniel.engel
DATE
02/17/17
Solid Edge
TITLE
SIZE
DDWG NO REV
FILE NAME: ProbeAssembly-DUCT.dft
SCALE: WEIGHT: SHEET 1 OF 1
REVISION HISTORY
REV DESCRIPTION DATE APPROVED
4.0 101
2.1 53
4.7 119
5.4 137
8.9 226
3.7 94
4.4 113
RH TEMP
HD -
Accuracy
2 = 2%
3 = 3%
Temperature
A = None
B = Transmitter
C = 100Pt (385)
D = 1000Pt (385)
E = 10k type 2
PRODUCT IDENTIFICATION
F= 10k type 3
G = 10k type 3 w/11k
shunt
H = 3k
I = 2k2
J = 1k8
K = 20k
L = 100k
DRAWN
CHECKED
ENG APPR
MGR APPR
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
ANGLES ±X.X°
2 PL ±X.XX 3 PL ±X.XXX
NAME
daniel.engel
DATE
02/17/17
Solid Edge
TITLE
SIZE
DDWG NO REV
FILE NAME: ProbeAssembly-DUCT.dft
SCALE: WEIGHT: SHEET 1 OF 1
REVISION HISTORY
REV DESCRIPTION DATE APPROVED
4.0 101
2.1 53
4.7 119
5.4 137
8.9 226
3.7 94
4.4 113
Units: in [mm]

CALIBRATION
Senva RH sensors are factory calibrated to NIST traceable
standards. No eld calibration is necessary or recommended.
However, to facilitate compliance with commissioning
requirements eld calibration osets are allowed.
1. Locate calibration instrument and sensor in close proximity
to each other in a controlled environment free of drafts, people,
and equipment to reduce inuence on RH and temperature.
2. Allow both readings to stabilize (10-30 minutes). Compare
reading of sensor to calibration instrument, and calculate
dierence.
3. Refer to OPERATION section to change osets as needed.
Setting an oset of zero restores factory calibration.
SPECIFICATIONS
TROUBLESHOOTING
Power supply 3-wire voltage mode (0-5V/10V)
2-wire current mode (4-20mA)
12-30VDC/24VAC (1), 15mA max.
12-30VDC, 30mA max.
Outputs RH and Temperature (option) 3-wire 0-5V/10V(4) or 2-wire 4-20mA
Output scaling RH 0-100%RH
Temp. transmitter (jumper selectable) 32~122oF (0~50oC) or -40~140 oF (-40~60oC)
Thermistor/RTD options See ordering table
Media lter PBT with water vapor-permeable membrane
Relative Humidity
Accuracy 2% models: ±2% over 10 to 90% range
3% models: ±3% over 20 to 80% range
Resolution 0.05%RH
Hysteresis ±1%RH
Non-linearity Factory linearized <1%RH
Temperature coecient Fully compensated by on-board sensor
Response time (2) 30s
Output update rate 2s
Operating range 0 to 100%RH (non-condensing)
Long term drift <0.5%RH per year
Operating conditions (3) -4 to 140oF (-20 to 60oC) @ RH >90%
-4 to 158oF (-20 to 70oC) @ RH = 50%
Temperature (Transmitter)
Accuracy (-20 to 70oC range) 2% models: < ±1oC; 0.5oC typ@25oC
3% models: < ±2oC; 0.5oC typ@25oC
Resolution 0.01oC
Repeatability ± 0.1oC
Response time (2) 30s
Output update rate 2s
Operating range -40 to 158oF (-40 to 70oC)
Enclosure Materials ABS/Polycarbonate
Dimensions 4.0”h x 4.4”w x 2.1”d (+6.8” probe)
(1) One side of transformer secondary is connected to signal common. Dedicated transformer is recommended.
(2) Time for reaching 63% of reading at 25oC and 1 m/s airow.
(3) Long term exposures to conditions outside normal range or high humidity may temporarily oset the RH reading (+3%RH after 60 hours).
(4) 15-30VDC/24VAC power supply voltage required for 10 volt output.
Symptom Solution
No output Check wiring. Ensure power
supply meets requirements.
Temp or RH reading
error
Verify control panel software is
congured for correct output
scaling.
Verify accuracy of test instrument.
Observe installation and
calibration guidelines.
Verify unit is securely installed on
duct without excessive air leakage.
Oset calibration only if necessary.
Sensor damage,
contamination, or
long-term drift
Replace sensor element. Consult
factory for ordering information.
Revised 3/21/2017 Document #152-0080-0B