HK Instruments RHT Series Installation Instructions Download Page 4

Copyright HK Instruments 2017

www.hkinstruments.fi

Installation version 5.0 2017

1) Configuration of the output modes of:
• Relative humidity (rH)
• Temperature (Temp)

Select the output mode, current (4–20 mA) or voltage (0–10 V),
by installing jumpers as shown in Figure 4. Both outputs,
relative humidity, and temperature are configured separately.
To select 2–10 V output mode on a display version device: First,
select 0–10 V output by jumper(s), then change the voltage (V)
output from 0–10 V to 2–10 V via the configuration menu. Please
see the user manual for more details.

The seller is obligated to provide a warranty of five years for the deliv

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ered goods regarding material and manufacturing. The warranty period 
is considered to start on the delivery date of the product. If a defect in 
raw materials or a production flaw is found, the seller is obligated, when 
the product is sent to the seller without delay or before expiration of 
the warranty, to amend the mistake at his/her discretion either by re

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pairing the defective product or by delivering free of charge to the buy

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er a new flawless product and sending it to the buyer. Delivery costs 
for the repair under warranty will be paid by the buyer and the return 
costs by the seller. The warranty does not comprise damages caused by 
accident, lightning, flood or other natural phenomenon, normal wear 
and tear, improper or careless handling, abnormal use, overloading, im

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proper storage, incorrect care or reconstruction, or changes and instal

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lation work not done by the seller or his/her authorized representative. 
The selection of materials for devices prone to corrosion is the buyer’s 
responsibility, unless otherwise is legally agreed upon. Should the man

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ufacturer alter the structure of the device, the seller is not obligated to 
make comparable changes to devices already purchased. Appealing for 
warranty requires that the buyer has correctly fulfilled his/her duties 
arisen from the delivery and stated in the contract. The seller will give 
a new warranty for goods that have been replaced or repaired within 
the warranty, however only to the expiration of the original product’s 
warranty time. The warranty includes the repair of a defective part or 
device, or if needed, a new part or device, but not installation or ex

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change costs. Under no circumstance is the seller liable for damages 
compensation for indirect damage.

2) Locking the display:
Install the jumper to lock the display to prevent access to the configu

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ration menu after installation is completed (see the schematics for the 
location of the pins).

Jumper installed to the left side pins:

0–10 V output selected

NA
rH
Temp

0–10 V   4–20 mA

Jumper installed to the right side pins:

4–20 mA output selected

NA
rH
Temp

0–10 V   4–20 mA

Second jumper installed to the right side pins:

4–20 mA output selected for rH

Third jumper installed to the left side pins

0–10 V output selected for temperature

NA
rH
Temp

0–10 V   4–20 mA

Figure 4

STEP 4: SELECTING THE OUTPUT MODE

WARRANTY POLICY

RECYCLING/DISPOSAL

The  parts  left  over  from  installation  should  be 
recycled  according  to  your  local  instructions. 
Decommissioned  devices  should  be  taken  to  a 
recycling site that specializes in electronic waste.

Summary of Contents for RHT Series

Page 1: ...temperature levels in offices public spaces hospitals meeting rooms and classrooms humidity and temperature in various commercial applications humidity and temperature in HVAC R environment SPECIFICATIONS Performance Measurement ranges Temperature 0 50 C Relative humidity 0 100 Accuracy Temperature 0 5 ºC Relative humidity 2 3 at 0 50 C and 10 90 rH Total error band includes accuracy hysteresis an...

Page 2: ...l Locate the unit in an area with good ventilation and an average temperature where it will be responsive to changes to the room conditions The RHT may be mounted on a flat surface Do not locate the RHT where it can be affected by Direct sunlight Drafts or dead areas behind doors Radiant heat from appliances Concealed pipes or chimneys Outside walls or unheated uncooled areas 2 Use the device as a...

Page 3: ...ck plate or for surface wiring select a knockout on the top or bottom of the wall plate as shown in Figure 2a 2 Connect the wires as shown in Figure 2b and 2c STEP 3 CONFIGURATION WIRING DIAGRAMS CONTINUED Configuration of the RHT series device consists of 1 Configuring the jumpers see step 4 2 Configuration menu options Display versions only See the user manual for further details Figure 2a Routi...

Page 4: ...t done by the seller or his her authorized representative The selection of materials for devices prone to corrosion is the buyer s responsibility unless otherwise is legally agreed upon Should the man ufacturer alter the structure of the device the seller is not obligated to make comparable changes to devices already purchased Appealing for warranty requires that the buyer has correctly fulfilled ...

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