thermokon PDI1- Series Air Velocity and Temperature Sensor Instructions

Ti3230en
PDH- Series (V&T),
Technical Instruction
Air Velocity and Temperature Sensor
with Active Output

PDI1- Series Air Velocity and Temperature Sensor

The PDI1-Series (V&T) is designed to measure air velocity and temperature in HVAC systems
Field selected measuring ranges and sensor outputs
Field select Multiple Velocity measuring ranges
Optional with LCD and relay output available
Optional LCD display available.
The sensor works with low power supply
The control outputs are active.

USE

Compatible to all common HVAC DDC and Analog Controls systems, with/without Building Automation System
Differential pressure measurement in HVAC systems
Monitoring the air dampers in the primary or secondary controls systems
Supervision of the status of heating / cooling coils, preventing overheating / freezing

Featured

Sensor with active outputs
Internal selectable measuring ranges and sensor outputs
Optional with LCD- backlit display
Optional with field adjustable relay output
Professional and practical product design, withstands rough environmental conditions
Easy to use, install and maintain

Product Range

Order Codes| Power Supply| Sensor Outputs| Measuring Ranges| Display| Relay Output| Protection
---|---|---|---|---|---|---
PD11.AA| AC/DC 24V ±10%| 0….10V
or
4….20mA| 0…50°C
0…2m/s
0…10m/s
0…20m/s| n/a| n/a| IP54
PD11.BA| LCD| n/a
PDI1.CA|

LCD

| Relay (STDP)

• default Value

Sensor Specification

Technical Information

Miscellaneous

Mounting Instruction

SCHEMATICS DIMENSIONAL DRAWINGS INSTALLATION

1. Mount the device in the desired location (see step 1).
2. Open the lid and route the cable through the strain relief and connect the wires to the terminal block (see step 2). Use a separate strain relief for each cable.
3. The device is now ready for configuration.

WARNING: Apply power only after the device is properly wired.
STEP 1: MOUNTING THE DEVICE

1. Select the mounting location (on a duct).
2. Use the mounting flange of the device as a template and mark the screw holes.
3. Mount the flange on the duct with screws (not included). (Figure 1a)
4. Adjust the probe to the desired depth. Ensure that the end of the probe reaches the middle of the duct. (Figure 1b)
5. Tighten the screw on the flange to hold the probe in position.

STEP 2: WIRING DIAGRAMS
For CE compliance a properly grounded shielding cable is required.

1. Unscrew the strain relief and route the cable(s). Use the strain relief on the left for power in and signal out (Tout/vout) and the strain relief on the right for relay.
2. Connect the wires as shown in figure 2a and 2b.
3. Tighten the strain relief.

CONFIGURATION

1. Select the desired measurement range (see step 3).
2. Select the desired measurement mode (see step 4).
3. Configure the relay (optional) (see step 5).

The device is now ready to be used.
STEP 3: SELECTING THE MEASUREMENT RANGE
Select the measurement range by installing jumpers as shown in Figure 3a. (See Figure 3a-3b – Jumper settings) SELECTING THE MEASUREMENT RANGE CONTINUED STEP 4: SELECTING THE MEASUREMENT MODE
Configure the outputs:

• Temperature output (Tout)
• Velocity output (vout)

Select the output moddseurrent (mA) or voltage (V), by instaling jumpers as shown in Figure 4. Both outputs, temperature (T) and velocity (v), are configured separately. STEP 5: CONFIGURING THE RELAY RELAY MODEL ON

1. Switching point (display required)
   • Install a jumper to pins labeled sw.p. (switching point). (See Figure 5)
   • Press down on the pushbutton to select the switching point (e.g. 5,05 m/s = NC) of the relay. The chosen value (m/s)is shown on the display.
   • Remove and store the jumper after the configuration is completed.

2. Hysteresis (display required)
   • Install a jumper to pins labeled hyst. (hysteresis). (See Figure 5)
   • Press down on the pushbutton to select the hysteresis of the relay switching point. The chosen value (/) is shown on the display.
   • Remove and store the jumper after the configuration is completed.

NOTE! Relay configuration jumpers must be removed and stored for proper operation. HSTERESIS
Hysteresis represents a dead-zone less than or equal to 20 % of the range selected. The hysteresis is anchored at the switching point (sw.p), extending to the hysteresis range selected.In the above example switching point is set at 1,5 m/s, and hysteresis is set at 0,25 m/s. As the velocity increases over 1,5 m/s, the relay will open/close. As velocity reduces, the relay will not close/open until the velocity passes 1,25 m/s, thus preventing rapid cycling.
HYSTERESIS CONTINUED The hysteresis maximum setting is based on the range selected.
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. WARRANTY POLICY
The seller is obligated to provide a warranty of five years for the deliv- ered goods regarding material and manufacturing. The warranty period s 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 expira- tion of the warranty, to amend the mistake at his/her discretion either by repairing the defective product or by delivering free of charge to the buyer 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, nor- mal wear and tear, improper or careless handling, abnormal use, over- loading, improper storage, incorrect care or reconstruction, or changes and installation work not done by the seller. The selection of materials for devices prone to corrosion s the buyer’s responsibility, unless other- wise is legally agreed upon. Should the manufacturer 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 exchange costs. Under no circumstance is the seller liable for damages compensation for indirect damage.

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