Vector Controls B2235773 User Manual

SDC-H1

Item name

Item code

Description/Option

SDC-H1-08-A3-1

40-30 0146

Transmitter for duct mounting: probe length 8cm (3”), incl. cable gland AMC-1
and humidity sensor element AES3-HT-A3

SDC-H1-16-A3-1

40-30 0147

Transmitter for duct mounting: probe length 16cm (6.2”), incl. cable gland
AMC-1 and humidity sensor element AES3-HT-A3

Item Name

Item Code

Humidity
Accuracy

[%RH]

Temperature
Accuracy [K]

@25°C (77°F)

Description/Option

AES3-HT-A2

40-50 0102

± 2%

±0.5°

Humidity - temperature sensor element
AES3-HT-A3

40-50 0103

± 3%

±0.4°

AES3-HT-A5

40-50 0104

± 5%

±0.3°

Item name

Item code

Description/Option

OPC-S

40-50 0029

Add-on display & programming module

OPA-S

40-50 0006

External display module

AMS-1

20-10 0116

Weather shield to protect the sensor element

AMC-2

40-50 0074

Conduit connector NPT 1/2

SDC-H1
Duct humidity transmitter

Features

 Replaceable sensor element
 Humidity measurement for air ducts
 Minimum and maximum value memory

 0…10 V, 0…20mA or 2…10V, 4…20mA measuring

signals selectable with jumpers

 Optional alternative signal ranges programmable

 Selectable averaging signal
 Optional LCD display (OPC-S) or external display

(OPA-S)

 Status LED

Applications

 Humidity measurement for supply and return air ducts in heating, ventilation and air conditioning applications.
 Recording of minimum and maximum values for critical environments
 Supervision of critical humidity

Humidity transmitter

A unique capacitive sensor element is used for measuring relative humidity. The applied measuring technology
guarantees excellent reliability and long term stability. The microprocessor samples the humidity once per second. It
calculates an averaging signal over a preset number of seconds and generates the output signal.
Standard output signal range and types may be selected by jumpers. Standard signal ranges are: 0…10VDC, 0…10VDC,
4…20mA and 0…20mA. Other ranges can be defined by using a programming tool (OPA-S or OPC-S). A version with
display is possible by ordering the integrated display accessory OPC-S.

Minimum and maximum values:
Using a display and programming accessory, the user has the option to read out and reset minimum and maximum
values. The minimum and maximum values may as well be used as output signals. The minimum and maximum
values are saved into the EEPROM and are available after a power interruption.

Ordering

Per default a sensor element with 3% RH accuracy and a PG9 cable gland (item AMC-1)for cables  4 – 8 mm (AWG 6
– 1) is included. Contact your local sales contact to order sensing elements with different accuracies or if you prefer a

sensor with conduit connector or a built in display module.

Transmitter (default)

Sensor element (for replacement only)

Accessories

Doc:70-00-0162, V1.1, 20170509 © Vector Controls GmbH, Switzerland Page 1
Subject to alteration www.vectorcontrols.com

SDC-H1

Power supply

Operating voltage
Transformer

24VAC 50/60 Hz  10%, 24VDC 10%
SELV to HD 384, Class II, 48VA max

Power consumption

Max 2 VA

Terminal connectors

For wire 0.34…2.5 mm2 (AWG 22…13)

Sensing probe

Humidity sensor
Range
Measuring accuracy
Hysteresis
Repeatability
Stability

Capacity sensor element
0…100%RH
See figure 1

 1%
 0.1%

< 0.5% / year

Signal outputs

Analog outputs
Output signal
Resolution
Maximum load

0…10VDCor 0…20mA
10 Bit, 9.7 mV, 0.019.5 mA
Voltage: ≥ 5 kΩ Current: ≤ 250Ω

Environment

Operation
Climatic conditions
Temperature
Humidity

To IEC 721-3-3
class 3K5

-40…70°C (-40…158°F)
<95% RH non-condensing

Transport &storage
Climatic conditions
Temperature
Humidity
Mechanical conditions

To IEC 721-3-2 and IEC 721-3-1
class 3K3 and class 1K3

-40…80°C (-40…176°F)
<95% RHnon-condensing
class 2M2

Standards

conformity

EMC directive
Low voltage directive

2004/108/EC
2006/95/EC

Product standards automatic electrical controls for
household and similar use

EN 60730–1

Electromagnetic compatibility for
domestic and industrial sector

Emissions: EN 60730-1
Immunity: EN 60730-1

Degree of protection to EN 60529
Mounted probe down with AMS-1

IP60
IP63

Safety class

III (IEC 60536)

General

Housing Materials Cover, back part

Filter material

PC+ABS (UL94 class V-0)
PTFE coated 1μm pores

Dimensions (H x W x D) Transmitter case

Probe

68 x 91 x 47mm (2.7” x 3.7” x 1.9”)
 14 x 77/157 mm ( 0.55 x 3/6.2”)

Weight (incl. package) SDC-H1-08-A3-1

SDC-H1-16-A3-1

229g (8.1oz)
264g (9.3oz)

Figure 1: Max RH-tolerance at 25°C (77°F)
per sensor type

Relative humidity absolute accuracy

%RH

%RH

10

20

30

40

100

90 0 50

60

70

80

±1

±0

±2

±3

±4

±5

AES-HT-A2

AES-HT-A3

AES-HT-A5

Technical Specification

Warning!Safety advice!This device is intended to be used for comfort applications. Where a device failure endangers

human life and/or property, it is the responsibility of the owner, designer and installer to add additional safety devices
to prevent or detect a system failure caused by such a device failure. The manufacturer of this device cannot be held
liable for any damage caused by such a failure. Failure to follow specifications and local regulations may endanger life,
cause equipment damage and void warranty.

Doc:70-00-0162, V1.1, 20170509 © Vector Controls GmbH, Switzerland Page 2
Subject to alteration www.vectorcontrols.com